Stirling engine device lifting and moving device in a narrow space

Abstract

The embodiment of the present application provides a Stirling engine equipment lifting and moving device in a narrow space. The device comprises a Stirling engine body, a ball caster base system, a pump pressure system and a moving track system. The ball caster base system is installed in the mounting base of the Stirling engine body and comprises a ball caster base, ball casters and a hydraulic cylinder; the pump pressure system is connected with the hydraulic cylinder and lifts the Stirling engine body through hydraulic oil; the moving track system is arranged below the ball caster base system and comprises a longitudinal V-shaped track, a longitudinal U-shaped track and a transverse track assembly. The balls of the ball casters are clamped into the V-shaped grooves of the V-shaped track to realize automatic centering and accurate positioning, and the ball casters have a moving space in the U-shaped grooves of the U-shaped track to avoid over-positioning and jamming. The device can realize hydraulic lifting of the Stirling engine, accurate movement along the track and reset installation in a narrow space, effectively solves the problem of difficult equipment maintenance and movement in a high-integration engine cabin and significantly improves the maintenance efficiency and operability in a limited space.

Description

Technical Field

[0001] This application relates to the field of mechanical manufacturing technology, and in particular to a lifting and moving device for Stirling engine equipment in a confined space. Background Technology

[0002] The application of Stirling engines in underwater propulsion systems is becoming increasingly widespread, and their development is moving towards miniaturization and unmanned operation. This trend has directly led to a dramatic increase in the integration of engine systems and increasingly stringent requirements for space utilization. As a result, the layout of the engine compartment is becoming increasingly compact, ultimately posing unprecedented challenges to the maintenance and repair of the equipment. Summary of the Invention

[0003] This invention provides a lifting and moving device for Stirling engine equipment in confined spaces, aiming to solve the problems of movement and installation difficulties encountered in existing technologies when repairing engines in confined spaces. This device can effectively assist in the precise relocation and positioning of the engine, significantly improving repair efficiency and operability in limited spaces.

[0004] This invention provides a lifting and moving device for Stirling engine equipment in a confined space, comprising: The Stirling engine body 101 has a mounting base 102 at its bottom; A ball caster base system 2 is installed in the mounting base 102. The ball caster base system 2 includes at least one set of ball caster base assemblies. Each set of ball caster base assemblies includes a ball caster base 201, a ball caster 206 installed on the ball caster base 201, and a hydraulic cylinder 202. Pump pressure system 4 is connected to the hydraulic cylinder 202 and is used to supply hydraulic oil to the hydraulic cylinder 202 to lift the Stirling engine body 101; The movable track system 3 is located below the ball caster base system 2. The ball casters 206 cooperate with the movable track system 3 to enable the Stirling engine body 101, after being lifted, to move along the movable track system 3. The mobile track system 3 includes a longitudinal track and a transverse track assembly 303. The longitudinal track includes a V-shaped track 301 and a U-shaped track 302. The balls of the ball casters 206 are engaged in the V-groove 3011 of the V-shaped track 301 to achieve automatic centering and positioning. The balls of the ball casters 206 have room to move within the U-groove 3021 of the U-shaped track 302.

[0005] In some embodiments, the ball caster base system 2 includes a left ball caster base and a right ball caster base, which are respectively installed on both sides of the mounting base 102; Each ball caster base includes a base 201, three ball casters 206, two hydraulic cylinders 202, and hydraulic cylinder lines 203; The ball caster 206 is installed in the ball caster mounting hole 2012 of the base 201, the hydraulic cylinder 202 is installed in the hydraulic cylinder mounting hole 2011 of the base 201, and the hydraulic cylinder pipeline 203 is installed in the pipeline groove 2013 of the base 201.

[0006] In some embodiments, the moving track system 3 adopts a two-longitudinal-three-transverse arrangement, with the two longitudinal tracks corresponding to the left ball caster base and the right ball caster base respectively, and the three transverse track assemblies 303 corresponding to the three ball casters 206 on each ball caster base respectively.

[0007] In some embodiments, of the two longitudinal tracks, one adopts the V-shaped track 301 design and the other adopts the U-shaped track 302 design; Of the three transverse track assemblies 303, one adopts a V-shaped track design and the other two adopt a U-shaped track design.

[0008] In some embodiments, the mounting base 102 is provided with a ball caster base mounting hole 1021, a protective plate 1022 for preventing the ball caster base from shifting laterally, and an anti-falling step 1023 for preventing the ball caster base from falling off vertically during lifting.

[0009] In some embodiments, the ball caster base 201 is provided with a ball caster base assembly installation limiting step 2014 for limiting the installation position of the ball caster base assembly; The ball caster base 201 is also provided with a vertical limiting step 2015 for the ball caster base assembly, which is used to ensure that the ball caster base assembly does not fall off from the Stirling engine body 101 during the vertical lifting and unloading process.

[0010] In some embodiments, the pump system 4 includes a pump cylinder 401, a shut-off valve 402, a distribution valve 403, and a hydraulic pipe 404; The hydraulic pipe 404 is connected to the hydraulic pipe joint 205 on the ball caster base system 2. The pump cylinder 401 pressurizes the hydraulic oil and distributes it to each hydraulic cylinder 202 through the shut-off valve 402 and the distribution valve 403 in sequence, thereby realizing the lifting operation of the Stirling engine body 101. The shut-off valve 402 can be closed after the Stirling engine body 101 is raised to ensure that the hydraulic oil does not flow back and the piston of the hydraulic cylinder 202 is kept in the raised state after the pump cylinder 401 is removed.

[0011] In some embodiments, the mobile track system 3 further includes a Stirling engine mounting platform 304 and a positioning block 305 for precise positioning during the resetting and installation process of the Stirling engine body 101.

[0012] In some embodiments, the ball caster 206 is a swivel ball caster, which has the function of a swivel wheel, enabling the Stirling engine body 101 to move in any direction.

[0013] In some embodiments, the hydraulic cylinder pipeline 203 is fixedly installed on the base 201 by a pipe clamp 204, and the hydraulic cylinder pipeline 203 is connected to the hydraulic pipe 404 of the pump system 4 by a hydraulic pipeline connector 205.

[0014] The beneficial effects of the above embodiments include: This invention achieves three core functions—hydraulic lifting of the Stirling engine, precise movement guided by the track, and multiple limit protection—within a confined space through the coordinated design of the ball caster base system, pump pressure system, and moving track system. It effectively solves the problem of maintenance and movement of highly integrated underwater power equipment in confined spaces, and significantly improves maintenance efficiency, operational safety, and equipment maintainability. Attached Figure Description

[0015] The accompanying drawings illustrate, by way of example and not limitation, the various embodiments discussed herein.

[0016] Figure 1 This is a schematic diagram illustrating a typical application of the Stirling engine equipment moving device in a confined space according to the present invention. Figure 2 This is a schematic diagram of the Stirling engine device of the present invention; Figure 3 This is a schematic diagram of the structure of the ball caster base assembly of the device of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the structure of the ball caster base assembly of the device of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the ball caster base of the device of the present invention; Figure 6 This is a schematic diagram of the process by which the ball caster base assembly of the present invention lifts the pump pressure of the Stirling engine equipment; Figure 7 This is a schematic diagram of the moving track system of the device of the present invention; Figure 8 This is a schematic diagram of the structure of the ball caster base assembly of the present invention acting on a moving track system.

[0017] Symbol explanation: 1-Stirling Engine: 101-Stirling engine body, 102-Stirling engine mounting base, 1021-Ball caster base mounting hole, 1022-Protective plate, 1023-Anti-fall-off step; 2-Ball caster base assembly: 201-Ball caster base, 2011-Hydraulic cylinder mounting hole, 2012-Ball caster mounting hole, 2013-Hydraulic pipe mounting groove, 2014-Ball caster base assembly mounting limit step, 2015-Ball caster base 202-Hydraulic cylinder, 203-Hydraulic cylinder pipeline, 204-Pipe clamp, 205-Hydraulic pipeline connector, 206-Ball caster; 3-Moving track system: 301-Longitudinal V-shaped track, 302-Longitudinal U-shaped track, 303-Transverse track assembly, 304-Stirling engine mounting platform, 305-Positioning block; 4-Pump system: 401-Pump cylinder, 402-Stop valve, 403-Distribution valve, 404-Hydraulic pipe. Detailed Implementation

[0018] In order to gain a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of this application.

[0019] In the embodiments described in this application, it should be noted that, unless otherwise stated and limited, the term "connection" should be interpreted broadly. For example, it can be an electrical connection, or a connection between two internal components. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above term according to the specific circumstances.

[0020] It should be noted that the terms "first," "second," and "third" used in the embodiments of this application are merely used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first," "second," and "third" can be interchanged in a specific order or sequence where permitted. It should be understood that the objects distinguished by "first," "second," and "third" can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in an order other than those illustrated or described herein.

[0021] This invention provides a lifting and moving device for Stirling engine equipment in a confined space, such as... Figures 1 to 8 As shown, it includes: The Stirling engine body 101 has a mounting base 102 at its bottom.

[0022] The ball caster base system 2 is installed in the mounting base 102. The ball caster base system 2 includes at least one set of ball caster base assemblies. Each set of ball caster base assemblies includes a ball caster base 201, a ball caster 206 mounted on the ball caster base 201, and a hydraulic cylinder 202.

[0023] The pump system 4 is connected to the hydraulic cylinder 202 and is used to supply hydraulic oil to the hydraulic cylinder 202 to lift the Stirling engine body 101.

[0024] The movable track system 3 is located below the ball caster base system 2. The ball casters 206 cooperate with the movable track system 3 to enable the Stirling engine body 101 to move along the movable track system 3 after being lifted.

[0025] The mobile track system 3 includes a longitudinal track and a transverse track assembly 303. The longitudinal track includes a V-shaped track 301 and a U-shaped track 302. The balls of the ball caster 206 are engaged in the V-groove 3011 of the V-shaped track 301 to achieve automatic centering and positioning. The balls of the ball caster 206 have room to move within the U-groove 3021 of the U-shaped track 302.

[0026] In some embodiments, the ball caster base system 2 includes a left ball caster base and a right ball caster base, which are respectively mounted on both sides of the mounting base 102.

[0027] Each ball caster base includes a base 201, three ball casters 206, two hydraulic cylinders 202, and hydraulic cylinder lines 203.

[0028] The ball caster 206 is installed in the ball caster mounting hole 2012 of the base 201, the hydraulic cylinder 202 is installed in the hydraulic cylinder mounting hole 2011 of the base 201, and the hydraulic cylinder pipeline 203 is installed in the pipeline groove 2013 of the base 201.

[0029] In some embodiments, the moving track system 3 adopts a two-longitudinal-three-transverse arrangement, with the two longitudinal tracks corresponding to the left ball caster base and the right ball caster base respectively, and the three transverse track assemblies 303 corresponding to the three ball casters 206 on each ball caster base respectively.

[0030] In some embodiments, of the two longitudinal tracks, one is designed as a V-shaped track 301 and the other is designed as a U-shaped track 302.

[0031] Of the three transverse track assemblies 303, one adopts a V-shaped track design, and the other two adopt a U-shaped track design.

[0032] In some embodiments, the mounting base 102 is provided with a ball caster base mounting hole 1021, a protective plate 1022 for preventing the ball caster base from shifting laterally, and an anti-falling step 1023 for preventing the ball caster base from falling off vertically during lifting.

[0033] In some embodiments, the ball caster base 201 is provided with a ball caster base assembly installation limiting step 2014 for limiting the installation position of the ball caster base assembly.

[0034] The ball caster base 201 is also provided with a vertical limiting step 2015 for the ball caster base assembly, which is used to ensure that the ball caster base assembly does not fall off the Stirling engine body 101 during the vertical lifting and unloading process.

[0035] In some embodiments, the pump system 4 includes a pump cylinder 401, a shut-off valve 402, a distribution valve 403, and a hydraulic pipe 404.

[0036] Hydraulic pipe 404 is connected to hydraulic pipe joint 205 on ball caster base system 2. Pump cylinder 401 pressurizes hydraulic oil and distributes it to each hydraulic cylinder 202 through shut-off valve 402 and distribution valve 403 in sequence, thereby realizing the lifting operation of Stirling engine body 101.

[0037] The shut-off valve 402 can be closed after the Stirling engine body 101 is raised to ensure that the hydraulic oil does not flow back and the piston of the hydraulic cylinder 202 is kept in the raised state after the pump cylinder 401 is removed.

[0038] In some embodiments, the mobile track system 3 further includes a Stirling engine mounting platform 304 and a positioning block 305 for precise positioning during the resetting and installation process of the Stirling engine body 101.

[0039] In some embodiments, the ball caster 206 is a swivel ball caster, which has the function of a swivel wheel, enabling the Stirling engine body 101 to move in any direction.

[0040] In some embodiments, the hydraulic cylinder line 203 is fixedly installed on the base 201 by the pipe clamp 204, and the hydraulic cylinder line 203 is connected to the hydraulic pipe 404 of the pump system 4 by the hydraulic line connector 205.

[0041] The Stirling engine equipment lifting and moving device in a confined space according to the present invention can solve the core problem of the difficulty in moving and maintaining Stirling engines in confined spaces.

[0042] Achieving easy engine movement in confined spaces: Through the cooperation of the ball caster base system and the moving track system, the Stirling engine can be precisely moved along the track after hydraulic lifting, solving the problem of difficult equipment relocation under the conditions of compact layout and limited space in the engine compartment.

[0043] Achieving precise positioning and installation: The design combines V-shaped and U-shaped tracks. The V-shaped groove of the V-shaped track enables automatic centering and positioning of the ball casters, ensuring precise guidance during movement. The U-shaped track provides room for movement, avoiding excessive constraints that could cause jamming, thus balancing positioning accuracy and smooth movement.

[0044] The Stirling engine equipment lifting and moving device in a confined space according to embodiments of the present invention can improve maintenance efficiency and operability.

[0045] Significantly reduces maintenance difficulty and labor intensity: It is extremely difficult to move a heavy Stirling engine in a confined space using traditional methods. This device uses hydraulic lifting and ball casters to move the engine, transforming the relocation of heavy equipment from manual handling to mechanically assisted movement, greatly reducing the difficulty of operation.

[0046] Adapting to the maintenance needs of highly integrated equipment: In response to the trend of miniaturization and unmanned operation of Stirling engine systems and the increasingly compact layout of the engine compartment, this device is specifically designed for equipment maintenance in scenarios requiring high integration and high space utilization.

[0047] Supports a complete closed loop for typical maintenance processes: Taking four centrally symmetrically arranged Stirling engines as an example, the device supports moving any engine from the edge mounting position to the central area of ​​the compartment for maintenance operations, and can lift it out of the compartment by crane from the central position. The reassembly process is reversible, forming a complete closed loop for maintenance operations.

[0048] This invention improves the structural reliability and safety of the Stirling engine lifting and moving device in confined spaces. Multiple limiting and anti-fall-off designs include: a protective plate on the mounting base to prevent lateral displacement and anti-fall-off steps to prevent vertical detachment; and mounting and vertical limiting steps on the ball caster base assembly to ensure reliable connection between the assembly and the engine body during lifting and hoisting, preventing accidental detachment. A hydraulic system pressure-holding function ensures safety: a shut-off valve in the pump system closes after the engine is lifted to prevent hydraulic oil backflow. The pump cylinder can be removed at this time, while the hydraulic cylinder continues to maintain the lifting state, simplifying operation in confined spaces and ensuring safety during maintenance. Universal ball casters enable flexible movement: the ball casters have a universal wheel function, allowing the lifted Stirling engine to move in any direction along the track, adapting to the movement needs of complex spatial paths.

[0049] The Stirling engine equipment lifting and moving device in a confined space according to this invention has system compatibility and scalability. The modular design facilitates installation and maintenance: the ball caster base assembly adopts a modular design, with components such as hydraulic cylinders, ball casters, and pipelines integrated on the base. It can be pre-assembled and then installed as a whole onto the engine mounting base, which facilitates on-site assembly and subsequent maintenance and replacement.

[0050] Although the embodiment uses a typical layout of 4 units arranged in a centrally symmetrical manner as an example, the principle and method of this device are also applicable to other similar scenarios that require precise movement, and have good versatility and scalability.

[0051] The technical problem to be solved by the present invention is to enable Stirling engine equipment to be easily moved and precisely positioned in a confined space, so as to facilitate the maintenance and installation of Stirling generator equipment. In order to achieve the above objective, the present invention proposes a Stirling engine equipment moving device in a confined space.

[0052] One specific embodiment of this patent involves four Stirling engines arranged symmetrically in a central configuration within an equipment compartment. The maintenance procedure requires moving any one engine from its edge mounting position to the center of the compartment for operation. This specification will use this typical layout as an example to elaborate on the application method and operation procedure of the described moving device. It is worth noting that the application of this device is not limited to this specific layout; its principles and methods are equally applicable to other similar scenarios requiring precise movement, which will not be elaborated upon here.

[0053] The aforementioned Stirling engine equipment moving device mainly consists of the Stirling generator body, a ball caster base system, a pump system, and a moving track system. The ball caster base system is installed within the mounting base of the Stirling generator body. Under the action of the pump system, the hydraulic cylinders in the ball caster base system are pumped, raising the Stirling generator body. The ball casters in the ball caster base system move precisely along the moving track system, and the positioning block system positions key nodes during the movement.

[0054] The aforementioned Stirling generator body includes a Stirling engine and a mounting base for mounting the Stirling generator. The mounting base structure is specially designed for the positioning and installation of the ball caster base system. The ball caster base system can be divided into a left ball caster base and a right ball caster base. Each ball caster base mainly consists of a base, three ball casters, two hydraulic cylinders, and hydraulic cylinder piping. The ball casters are installed in the ball caster mounting holes of the base, the hydraulic cylinders are installed in the hydraulic cylinder mounting holes of the base, and the hydraulic cylinder piping is installed in the piping grooves of the base. The left and right ball caster bases are mounted on the aforementioned Stirling engine mounting base. The aforementioned pump system is simultaneously connected to the hydraulic cylinders on the left and right ball caster bases. Under the action of the pump system, the hydraulic cylinders are pushed out, realizing the lifting action of the Stirling engine body.

[0055] Simultaneously, a moving track system is installed beneath the ball caster bases. This system ensures the hot air engine body moves precisely to its designed position along the track system, lifted by the ball caster bases. The example moving track system uses a two-vertical, three-horizontal arrangement. The two vertical tracks are due to the lifting motion of the hot air engine body using two devices on the left and right ball caster bases; the three horizontal tracks are because each ball caster base uses three ball casters to support the weight of the hot air engine body. Furthermore, to ensure precise position control during the movement of the hot air engine body, one of the two vertical tracks uses a V-shaped design, allowing the ball bearings of the ball casters to automatically center themselves. The other track uses a U-shaped design, providing some play in the ball bearings, ensuring precise positioning of the hot air engine body while preventing over-positioning that could cause the ball caster bases to jam. Similarly, the same design is used for the three horizontal tracks, with one V-shaped track and the other two U-shaped tracks.

[0056] Figure 1 This is a schematic diagram illustrating a typical application example of a Stirling engine equipment moving device for confined spaces according to the present invention. In an equipment compartment, four Stirling engines 1 are arranged symmetrically in a central configuration. The maintenance procedure requires moving any one of the Stirling engines 1 from its edge mounting position as shown in the diagram to the center area of ​​the compartment. A ball-bearing caster base assembly 2 is installed at the bottom of the Stirling engine 1, enabling precise movement of the Stirling engine 1 on the moving track system 3.

[0057] Figure 2 This is a schematic diagram of the Stirling engine device of the present invention. The Stirling engine 1 mainly consists of an engine body 101 and a mounting base 102. The mounting base 102 is provided with a ball caster mounting hole 1021, a protective plate 1022 to prevent lateral displacement of the ball caster base, and a vertical anti-fall step 1023 to prevent the ball caster base from falling off during the lifting and hoisting process of the Stirling generator 1.

[0058] Figure 3 and Figure 4 This is a schematic diagram of the structure of the ball caster base assembly of the device of the present invention. Figure 5 This is a schematic diagram of the structure of the ball caster base of the device of the present invention. The ball caster base assembly 2 mainly consists of a ball caster base 201, a hydraulic cylinder 202, a hydraulic cylinder pipeline 203, a pipe clamp 204, a hydraulic pipeline connector 205, and ball casters 206. The ball caster base 201 is the main body of the ball caster base assembly 2. The hydraulic cylinder 202, the hydraulic cylinder pipeline 203, and the ball casters 206 are sequentially installed on the hydraulic cylinder mounting hole 2011, the hydraulic pipe mounting groove 2013, and the ball caster mounting hole 2012 on the ball caster base 201. In this example, the ball caster base assembly 2 uses two hydraulic cylinders 202 and three ball casters 206. The hydraulic cylinder 202 has a telescopic function, which lifts the Stirling engine 1 by pressing against the mounting base 102. The ball casters 206 have a swivel wheel function, enabling the Stirling engine 1 to move in any direction. Hydraulic cylinder pipeline 203 and hydraulic pipeline connector 205 are connected to pump system 4 to realize the lifting function of hydraulic cylinder. Pipe clamp 204 is used for installation and fixation of hydraulic cylinder pipeline 203. The ball caster base assembly installation limiting step 2014 limits the installation position of ball caster base assembly 2. The ball caster base assembly 2 is inserted into the ball caster base mounting hole 1021 and inserted to the bottom, ensuring that the ball caster base assembly installation limiting step 2014 fits against the Stirling engine mounting base 102. The vertical limiting step 2015 of the ball caster base assembly ensures that the ball caster base assembly 2 does not fall off the Stirling engine 1 during the vertical lifting and unloading process.

[0059] Figure 6 This is a schematic diagram illustrating the pumping and lifting process of the Stirling engine equipment using the ball caster base assembly of the present invention. The pumping system 4 mainly consists of a pump cylinder 401, a shut-off valve 402, a distribution valve 403, and a hydraulic pipe 404. The hydraulic pipe 404 is connected to the hydraulic pipe connector 205 on the ball caster base assembly 2. The pump cylinder 401 pressurizes the hydraulic oil, which then passes sequentially through the shut-off valve 402, the distribution valve 403, and is divided into four parts through the hydraulic pipe 404, the hydraulic pipe connector 205, and the hydraulic cylinder pipe 203, entering the hydraulic cylinder 202. This raises the extension piston of the hydraulic cylinder 202, thus lifting the Stirling generator 1. The shut-off valve 402 can be closed after the Stirling generator 1 is lifted to prevent backflow of hydraulic oil. The pump cylinder 401 can be removed after the shut-off valve 402 is removed, allowing the piston lifting function of the hydraulic cylinder 202 to continue.

[0060] Figure 7This is a schematic diagram of the moving track system of the device of the present invention. The moving track system 3 mainly consists of a longitudinal V-shaped track 301, a longitudinal U-shaped track 302, a transverse track assembly 303, a Stirling engine mounting platform 304, and a positioning block 305. Since the Stirling generator 1 needs to be moved using two sets of ball caster base assemblies 2, two longitudinal tracks are required, namely the longitudinal V-shaped track 301 and the longitudinal U-shaped track 302; and since the ball caster base assembly 2 uses three ball casters 206, three transverse tracks 303 are required. Figure 8 This is a schematic diagram of the ball caster base assembly of the present invention operating in the moving track system. During the process of the ball caster base assembly 2 pumping and lifting the Stirling engine 1, the swivel wheels of the left ball caster 206 engage with the V-groove 3011 of the longitudinal V-shaped track 301, achieving precise positioning of the Stirling engine 1 during movement through the V-groove positioning function. The swivel wheels of the right ball caster 206 contact the U-groove 3021 of the longitudinal U-shaped track 302. The U-groove 3021 allows the swivel wheels of the ball caster 206 to have room for movement, avoiding excessive constraint. The Stirling engine mounting platform 304 and positioning block 305 achieve precise positioning during the resetting and installation process of the Stirling engine 1.

[0061] This invention patent describes a device for moving Stirling engines during the repair and reassembly process in confined spaces. An example is four Stirling engines arranged symmetrically at one center. The repair process requires moving the Stirling engines from their installation positions to the symmetrical center point, and then using a crane to lift them out of the equipment exit position. The reassembly process involves lifting the Stirling engines from the equipment exit, placing them at the symmetrical center point, and then moving them sequentially to their installation positions. The specific implementation process is as follows: The assembled caster base components are sequentially installed into the Stirling engine mounting base. A pump system lifts the hydraulic cylinders within the caster base components, achieving the lifting action of the Stirling engines. After lifting, the Stirling engines can be moved along the track system to the symmetrical center point by the swivel casters and then lifted out from that position. The Stirling engine reassembly process is the reverse of the removal process described above and will not be elaborated further.

[0062] The technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0063] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lifting and moving device for Stirling engine equipment in a confined space, characterized in that, include: Stirling engine body (101), with a mounting base (102) at the bottom; A ball caster base system (2) is installed in the mounting base (102). The ball caster base system (2) includes at least one set of ball caster base assemblies. Each set of ball caster base assemblies includes a ball caster base (201), a ball caster (206) mounted on the ball caster base (201), and a hydraulic cylinder (202). A pump system (4) is connected to the hydraulic cylinder (202) and is used to supply hydraulic oil to the hydraulic cylinder (202) to lift the Stirling engine body (101). The moving track system (3) is located below the ball caster base system (2). The ball casters (206) cooperate with the moving track system (3) so that the Stirling engine body (101) after being lifted can move along the moving track system (3). The mobile track system (3) includes a longitudinal track and a transverse track assembly (303). The longitudinal track includes a V-shaped track (301) and a U-shaped track (302). The balls of the ball casters (206) are engaged in the V-groove (3011) of the V-shaped track (301) to achieve automatic centering and positioning. The balls of the ball casters (206) have room to move within the U-groove (3021) of the U-shaped track (302).

2. The lifting and moving device for Stirling engine equipment in a confined space according to claim 1, characterized in that, The ball caster base system (2) includes a left ball caster base and a right ball caster base, which are respectively installed on both sides of the mounting base (102); Each ball caster base includes a base (201), three ball casters (206), two hydraulic cylinders (202), and hydraulic cylinder lines (203); The ball caster (206) is installed in the ball caster mounting hole (2012) of the base (201), the hydraulic cylinder (202) is installed in the hydraulic cylinder mounting hole (2011) of the base (201), and the hydraulic cylinder pipeline (203) is installed in the pipeline groove (2013) of the base (201).

3. The lifting and moving device for Stirling engine equipment in a confined space according to claim 2, characterized in that, The moving track system (3) adopts a two-longitudinal and three-horizontal arrangement. The two longitudinal tracks correspond to the left ball caster base and the right ball caster base respectively, and the three transverse track components (303) correspond to the three ball casters (206) on each ball caster base respectively.

4. The lifting and moving device for Stirling engine equipment in a confined space according to claim 1 or 3, characterized in that, Of the two longitudinal tracks, one adopts the V-shaped track (301) design and the other adopts the U-shaped track (302) design; Of the three transverse track assemblies (303), one adopts a V-shaped track design and the other two adopt a U-shaped track design.

5. The lifting and moving device for Stirling engine equipment in a confined space according to claim 1, characterized in that, The mounting base (102) is provided with a ball caster base mounting hole (1021), a protective plate (1022) for preventing the ball caster base from shifting laterally, and an anti-fall step (1023) for preventing the ball caster base from falling off vertically during lifting.

6. The lifting and moving device for Stirling engine equipment in a confined space according to claim 2, characterized in that, The ball caster base (201) is provided with a ball caster base assembly installation limiting step (2014) to limit the installation position of the ball caster base assembly; The ball caster base (201) is also provided with a vertical limiting step (2015) for the ball caster base assembly, which is used to ensure that the ball caster base assembly and the Stirling engine body (101) do not fall off during the vertical lifting and unloading process.

7. The lifting and moving device for Stirling engine equipment in a confined space according to claim 1, characterized in that, The pump system (4) includes a pump cylinder (401), a shut-off valve (402), a distribution valve (403), and a hydraulic pipe (404). The hydraulic pipe (404) is connected to the hydraulic pipe joint (205) on the ball caster base system (2). The pump cylinder (401) pressurizes the hydraulic oil and distributes it to each hydraulic cylinder (202) through the shut-off valve (402) and the distribution valve (403) in sequence, thereby realizing the lifting operation of the Stirling engine body (101). The shut-off valve (402) can be closed after the Stirling engine body (101) is raised to ensure that the hydraulic oil does not flow back and the piston of the hydraulic cylinder (202) is kept in the raised state after the pump cylinder (401) is removed.

8. The lifting and moving device for Stirling engine equipment in a confined space according to claim 1, characterized in that, The mobile track system (3) also includes a Stirling engine mounting platform (304) and a positioning block (305) for precise positioning during the resetting and installation of the Stirling engine body (101).

9. The lifting and moving device for Stirling engine equipment in a confined space according to claim 1, characterized in that, The ball caster (206) is a universal ball caster with universal wheel function, which enables the Stirling engine body (101) to move in any direction.

10. The lifting and moving device for Stirling engine equipment in a confined space according to claim 1, characterized in that, The hydraulic cylinder pipeline (203) is fixedly installed on the base (201) by the pipe clamp (204), and the hydraulic cylinder pipeline (203) is connected to the hydraulic pipe (404) of the pump system (4) by the hydraulic pipeline connector (205).

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