Upper and lower cylinder bodies of new energy engine and box closing process

Abstract

The invention discloses a new energy engine upper and lower cylinder body and a box closing process, the new energy engine upper and lower cylinder body comprises a lower cylinder body and an oil outlet air bag, the lower cylinder body is connected with an upper cylinder body, the upper cylinder body is provided with a plurality of upper cylinder cavities for a piston to move, and the outer side of the upper cylinder body is connected with heat dissipation fins for heat dissipation. The upper cylinder body is provided with the oil filling chamber used for adding lubricating oil and the oil outlet air bag communicated with the oil filling chamber, and the oil outlet air bag used for filling oil is beaten, so that a part of lubricating oil can be stored in the chamber part, connected with the oil outlet air bag, of the oil filling chamber during use; when the oil outlet air bag is extruded and beaten by the piston, lubricating oil in the oil adding cavity and the oil outlet air bag connecting cavity can be added, the use and maintenance difficulty of the whole equipment is reduced, the adding frequency of the lubricating oil is reduced, meanwhile, the interior of the upper cylinder body is reduced, and the cooling fins are connected within the original size planning range for cooling, so that the cooling efficiency is improved. The service life of the upper and lower cylinder bodies of the whole new energy engine is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy engine cylinder blocks, and in particular to a new energy engine upper and lower cylinder blocks and a case assembly process. Background Art

[0002] The engine block is the main structure and important component of the automobile engine, playing a key role in bearing and coordination.

[0003] The upper and lower cylinder blocks of these new energy engines currently on the market are typically constructed from cast iron or aluminum alloy. Internally, they contain bores for the pistons and connecting rods, as well as water inlets and outlets for cooling. The upper portion of the block houses the cylinders, where the pistons reciprocate, forming the combustion chamber and ensuring tightness and thermal conductivity. The lower crankcase provides space for the crankshaft and lubricates the engine components through oil passages. However, adding lubricant can be challenging for users.

[0004] Therefore, it is necessary to propose a new energy engine upper and lower cylinder and box assembly process for the above technical solution. Summary of the Invention

[0005] The purpose of the present invention is to provide a new energy engine upper and lower cylinder blocks and a box assembly process to solve the problem in the above background technology that adding lubricating oil to the upper and lower cylinder blocks of the new energy engine will bring certain difficulties to the user.

[0006] To solve the above problems, the present invention provides the following technical solutions: a new energy engine upper and lower cylinder bodies, including a lower cylinder body, an upper cylinder body, an upper cylinder chamber, heat dissipation fins, a lubrication structure, a refueling chamber and an oil outlet air bag: the lower cylinder body is connected to the upper cylinder body, and the upper cylinder body is provided with a plurality of upper cylinder chambers for piston movement, the outer side of the upper cylinder body is connected to heat dissipation fins, and the upper cylinder body is provided with a lubrication structure for oil supply; the lubrication structure includes a refueling chamber opened on the upper cylinder body, and the refueling chamber is located inside the upper cylinder chamber and is connected to an oil outlet air bag for piston squeezing.

[0007] Preferably, the top of the upper cylinder chamber passes through to the outside of the upper cylinder body, and the top of the refueling chamber passes through to the outside of the upper cylinder body.

[0008] Preferably, the refueling chamber in the upper cylinder chamber is connected, and the refueling chamber is connected to the oil outlet air bag.

[0009] Preferably, the lower cylinder is located at the bottom of the upper cylinder, and the lower cylinder is cylindrical in design.

[0010] Preferably, both sides of the lower cylinder body are connected with lower cylinder chambers, and the lower cylinder chambers are provided with bolt holes for mounting the lower cylinder body.

[0011] Preferably, two lower cylinder chambers are provided, and the lower cylinder chambers are symmetrically distributed on the central axis of the lower cylinder body, and the plane where the lowest point of the lower cylinder chamber is located is lower than the plane where the lowest point of the lower cylinder body is located.

[0012] Preferably, a mounting side plate is provided in the lower cylinder body, and the mounting side plate extends transversely through the lower cylinder body and the outside of the lower cylinder chamber.

[0013] A new energy engine upper and lower cylinder block assembly process, the process steps are as follows:

[0014] S1. Process preparation, component pretreatment and tooling equipment debugging;

[0015] S2. Assemble the upper cylinder assembly, install the cooling fins and assemble the lubrication structure;

[0016] S3, assemble the lower cylinder assembly, process the lower cylinder chamber and install the side panels;

[0017] S4. Assemble the upper and lower cylinder bodies, position them, seal and fix them;

[0018] S5. Install the piston and connecting rod, assemble the piston assembly, and confirm the position of the oil outlet air bag;

[0019] S6. Overall fixation and inspection, connection with the engine body, sealing inspection, heat dissipation performance test and installation stability inspection.

[0020] The lubrication structure assembly steps in step S2 are:

[0021] S11. Refueling chamber pretreatment: Confirm the location of the refueling chamber on the upper cylinder body. The top of the refueling chamber passes through the upper cylinder body, and the bottom extends into the upper cylinder body and is connected to the multiple chambers in the upper cylinder body. Use special tools to clean the inside of the chamber to ensure that there are no impurities blocking the oil line.

[0022] S12, oil outlet air bag installation: install the oil outlet air bag to the upper cylinder chamber through the existing fixing structure

[0023] Use positioning fixtures to ensure the oil outlet airbag is installed accurately and firmly connected to the chamber. Use tension tests to verify the fixing effect and ensure that the oil outlet airbag will not separate from the chamber when the piston is running.

[0024] S13, Lubricating oil filling: inject the specified amount of lubricating oil from the top of the refueling chamber to ensure that the refueling chamber

[0025] An appropriate amount of lubricating oil is stored in chamber 41 and the connected chambers, and the oil filling port is temporarily blocked after filling to prevent contamination.

[0026] Among them, the S4 assembly positioning places the upper cylinder body on the assembly workbench with the upper cylinder chamber opening facing downward, lifts the lower cylinder body, aligns it with the bottom of the upper cylinder body, ensures that the installation side panel is correctly connected to the upper cylinder chamber, and the center axes of the upper and lower cylinder bodies coincide; slowly lowers the cylinder body to make the two fit together, and monitors the gaps between the mating surfaces during the process to ensure uniformity and no obvious misalignment; seals and fixes, evenly applies sealant on the joint surfaces of the upper and lower cylinder bodies, and controls the thickness of the glue layer to 0.3-0.5mm to prevent the sealant from entering the upper cylinder chamber and the installation side panel channel, and uses a torque wrench to tighten the connecting bolts in a diagonal alternating order, and gradually reaches the specified torque in 2-3 times (such as 50% for the first time, 80% for the second time, and 100% for the third time) to ensure that the upper and lower cylinder bodies are tightly combined and evenly stressed, and monitors the bolt elongation and joint surface gap in real time during the tightening process to prevent cylinder deformation due to excessive tightening.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the upper and lower cylinders of the new energy engine are provided with a refueling chamber for adding lubricating oil and an oil outlet air bag connected to the refueling chamber on the upper cylinder body, and by hitting the refueling oil outlet air bag, the chamber part where the refueling chamber and the oil outlet air bag are connected will store a part of the lubricating oil during use, and when the oil outlet air bag is squeezed and hit by the piston, the lubricating oil in the chamber part where the refueling chamber and the oil outlet air bag are connected will be added, thereby reducing the difficulty of use and maintenance of the entire equipment and reducing the frequency of adding lubricating oil. At the same time, by reducing the interior of the upper cylinder body, cooling fins are connected within the original size planning range for heat dissipation, thereby extending the service life of the upper and lower cylinders of the entire new energy engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the isometric structure of the present invention;

[0030] Figure 3 It is a schematic top view of the three-dimensional structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the top view of the structure of the present invention;

[0032] Figure 5 It is a flow chart of the box closing process of the present invention.

[0033] Reference numerals in the figures:

[0034] 1. Lower cylinder body; 11. Lower cylinder chamber; 12. Mounting side panel; 2. Cooling fins; 3. Upper cylinder body; 31. Upper cylinder chamber; 4. Lubrication structure; 41. Refueling chamber; 42. Oil outlet airbag. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] like Figure 1-5 As shown, a new energy engine upper and lower cylinders include a lower cylinder 1, an upper cylinder 3, an upper cylinder chamber 31, heat dissipation fins 2, a lubrication structure 4, a refueling chamber 41 and an oil outlet air bag 42: the lower cylinder 1 is connected to the upper cylinder 3, wherein the lower cylinder 1 and the upper cylinder 3 are generally made of cast iron or aluminum alloy, which is used to reduce the probability of deformation of the lower cylinder 1 and the upper cylinder 3 during use, and a plurality of upper cylinder chambers 31 for piston movement are opened on the upper cylinder 3, wherein the upper cylinder chamber 31 and the upper cylinder 3 are of an integrated molding design, and the upper cylinder chamber 31 is used for piston installation.

[0037] The outer side of the upper cylinder body 3 is connected with a heat dissipation fin 2 for heat dissipation, wherein the heat dissipation fin 2 and the upper cylinder body 3 are detachably connected. It is necessary to reduce the outer surface area of ​​the upper cylinder body 3 for installing the heat dissipation fin 2 without changing the diameter of the upper cylinder chamber 31, so that the upper cylinder body 3 will not be affected by the overall installation of the upper cylinder body 3 when it is used for cooling.

[0038] In order to reduce the steps and difficulty of refueling the upper cylinder chamber 31 , a lubrication structure 4 for supplying oil is provided on the upper cylinder body 3 .

[0039] It should be noted that the lubrication structure 4 includes a refueling chamber 41 and an oil outlet air bag 42. Specifically, the refueling chamber 41 is integrally formed and opened on the upper cylinder body 3. Figure 2 As shown, the top passes through the upper cylinder body 3, and the bottom extends into the upper cylinder body 3, and multiple chambers are opened at the bottom and are connected to the upper cylinder chamber 31. When in use, a portion of lubricating oil will be stored in the multiple chambers and the refueling chamber 41. The refueling chamber 41 is located inside the upper cylinder chamber 31 and is connected to an oil outlet air bag 42 for piston extrusion. The oil outlet air bag 42 and the chamber located in the upper cylinder chamber 31 are connected by an existing fixed structure, which can be a plug-in card, connection and hot melt connection. This fixing method needs to ensure that the oil outlet air bag 42 will not be separated from the chamber as the piston runs.

[0040] Specifically, when assembling the upper cylinder chamber 31, the piston and the new energy engine, the oil outlet air bag 42 is installed in the chamber position of the upper cylinder chamber 31. When the piston is running, since the oil outlet air bag 42 is in an extrudable state, the oil outlet air bag 42 will be affected by the operation of the piston, squeezing out the oil chamber 41 and the lubricating oil in the chamber, performing automatic adding operations, and reducing the frequency of adding lubricating oil.

[0041] It should be further explained that the top of the upper cylinder chamber 31 penetrates to the outside of the upper cylinder body 3 , and the top of the refueling chamber 41 penetrates to the outside of the upper cylinder body 3 .

[0042] It should be further explained that, in order to ensure that the refueling chamber 41 in the upper cylinder chamber 31 is connected, the refueling chamber 41 is connected to the oil outlet air bag 42 for adding lubricating oil.

[0043] The effect achieved by the entire embodiment 1 is that, when assembling the upper cylinder chamber 31, the piston and the new energy engine, the oil outlet airbag 42 is installed in the chamber position of the upper cylinder chamber 31. When the piston is running, since the oil outlet airbag 42 is in an extrudable state, the oil outlet airbag 42 will be affected by the operation of the piston, and the lubricating oil in the refueling chamber 41 and the chamber will be squeezed out, and the operation of automatic addition will be performed, thereby reducing the frequency of adding lubricating oil, wherein the refueling chamber 41 is as shown in FIG. Figure 2 As shown, the top passes through the upper cylinder body 3, and the bottom extends into the upper cylinder body 3, and multiple chambers are opened at the bottom and are connected to the upper cylinder chamber 31. When in use, a portion of lubricating oil will be stored in the multiple chambers and the refueling chamber 41, and the oil outlet air bag 42 and the chamber located in the upper cylinder chamber 31 are connected by an existing fixed structure, which can be a plug-in card, connection and hot melt connection. This fixing method needs to ensure that the oil outlet air bag 42 will not be separated from the chamber as the piston runs. Secondly, the heat dissipation fins 2 and the upper cylinder body 3 are detachably connected. It is necessary to reduce the surface area of ​​the upper cylinder body 3 without changing the diameter of the upper cylinder chamber 31 for installing the heat dissipation fins 2, so that the upper cylinder body 3 will not affect the overall installation of the upper cylinder body 3 when it is used for cooling. The heat dissipation fins 2 will dissipate heat for the upper cylinder body 3 when in use, thereby extending the service life of the upper and lower cylinder bodies of the entire new energy engine.

[0044] like Figure 1-5 As shown, a new energy engine upper and lower cylinders, the lower cylinder 1 is located at the bottom of the upper cylinder 3, and the lower cylinder 1 is a cylindrical design.

[0045] Both sides of the lower cylinder body 1 are connected to the lower cylinder chamber 11. Figure 1 The heat dissipation fins 2 are of rectangular design, which is convenient for fitting and installing with the new energy engine. The lower cylinder chamber 11 is provided with bolt holes for installing the lower cylinder body 1. When in use, the upper and lower cylinder bodies of the entire new energy engine and the new energy engine are installed and fixed by bolts, the lower cylinder chamber 11 and the bolt holes on the new energy engine.

[0046] It should be further explained that there are two lower cylinder chambers 11 with a symmetrical design, which further facilitates the installation of the upper and lower cylinder bodies of the new energy engine. The lower cylinder chambers 11 are symmetrically distributed on the central axis of the lower cylinder body 1, which is convenient for installation and fixation on both sides of the lower cylinder body 1. The plane where the lowest point of the lower cylinder chamber 11 is located is lower than the plane where the lowest point of the lower cylinder body 1 is located, which increases the stability of the lower cylinder body 1 during installation.

[0047] An installation side plate 12 is provided in the lower cylinder body 1, wherein the installation side plate 12 is communicated with the upper cylinder chamber 31. When in use, the piston and the connecting rod are installed and operated in the installation side plate 12 and the upper cylinder chamber 31, and the installation side plate 12 extends horizontally to the outside of the lower cylinder body 1 and the lower cylinder chamber 11.

[0048] The effect achieved by the entire embodiment 2 is that, when in use, the upper and lower cylinder bodies of the entire new energy engine and the new energy engine are installed and fixed by bolts, the lower cylinder chamber 11, and the bolt holes on the new energy engine. The symmetrical design of the lower cylinder chamber 11 further facilitates the installation of the upper and lower cylinder bodies of the new energy engine, and the plane where the lowest point of the lower cylinder chamber 11 is located is lower than the plane where the lowest point of the lower cylinder body 1 is located, which will increase the stability of the lower cylinder body 1 during installation, and the mounting side plate 12 and the upper cylinder chamber 31 are connected. When in use, the piston and the connecting rod are installed and operated in the mounting side plate 12 and the upper cylinder chamber 31.

[0049] Working principle: When using the upper and lower cylinders of the new energy engine, assemble them on new energy vehicles for use. First, when assembling the upper cylinder chamber 31, the piston and the new energy engine, install the oil outlet airbag 42 in the chamber position of the upper cylinder chamber 31. When the piston is running, since the oil outlet airbag 42 is in an extrudable state, the oil outlet airbag 42 will be affected by the operation of the piston, squeezing out the lubricating oil in the refueling chamber 41 and the chamber, and performing automatic adding operations to reduce the frequency of adding lubricating oil. The refueling chamber 41 is as follows: Figure 2 As shown, the top passes through the upper cylinder body 3, and the bottom extends into the upper cylinder body 3, and multiple chambers are opened at the bottom and are connected to the upper cylinder chamber 31. When in use, a portion of lubricating oil will be stored in the multiple chambers and the refueling chamber 41, and the oil outlet air bag 42 and the chamber located in the upper cylinder chamber 31 are connected by an existing fixed structure, which can be a plug-in card, connection and hot melt connection. This fixing method needs to ensure that the oil outlet air bag 42 will not be separated from the chamber as the piston runs. Secondly, the heat dissipation fins 2 and the upper cylinder body 3 are detachably connected, wherein it is necessary to reduce the surface area of ​​the upper cylinder body 3 without changing the diameter of the upper cylinder chamber 31, for installing the heat dissipation fins 2, so that the upper cylinder body 3 will not affect the overall installation of the upper cylinder body 3 when it is used for cooling. The heat dissipation fins 2 will dissipate heat for the upper cylinder body 3 when in use, thereby extending the service life of the upper and lower cylinder bodies of the entire new energy engine;

[0050] During use, the upper and lower cylinder bodies of the entire new energy engine and the new energy engine are installed and fixed by bolts, the lower cylinder chamber 11, and the bolt holes on the new energy engine. The symmetrical design of the lower cylinder chamber 11 further facilitates the installation of the upper and lower cylinder bodies of the new energy engine, and the plane where the lowest point of the lower cylinder chamber 11 is located is lower than the plane where the lowest point of the lower cylinder body 1 is located, which will increase the stability of the lower cylinder body 1 during installation, and the mounting side plate 12 and the upper cylinder chamber 31 are connected. During use, the piston and the connecting rod are installed and operated in the mounting side plate 12 and the upper cylinder chamber 31, and finally the work of the upper and lower cylinder bodies of the new energy engine is completed.

[0051] New energy engine upper and lower cylinder block assembly process

[0052] 1. Process Preparation

[0053] (1) Component pretreatment

[0054] Cleaning: Use high-pressure air or a specialized cleaning agent to clean the surfaces of the lower cylinder 1, upper cylinder 3, cooling fins 2, lubrication structure 4 (including the oiling chamber 41 and oil outlet airbag 42), and other components to remove casting burrs, oil stains, and impurities, ensuring that all mating surfaces are flat and smooth. Focus on cleaning the inner walls of the upper cylinder chamber 31, lower cylinder chamber 11, and the connection surface of the mounting side plate 12.

[0055] Material inspection: Check the material (cast iron or aluminum alloy) of the lower cylinder body 1 and the upper cylinder body 3, check for defects such as cracks and deformation, confirm the quality of the integrated molding of the upper cylinder chamber 31 and the upper cylinder body 3, and ensure that the position accuracy of the bolt holes and the surface roughness of the lower cylinder chamber 11 meet the design requirements.

[0056] Accessory preparation: prepare suitable connecting bolts, sealants, fixed structural parts (such as plug-in cards, hot-melt connectors, etc.), as well as subsequent installation parts such as lubricating oil, pistons, connecting rods, etc.

[0057] (2) Tooling equipment debugging

[0058] Calibrate the horizontality of the assembly workbench, adjust the bolt tightening tools (such as torque wrench) to the specified parameters, check the operating status of the sealant coating equipment, and ensure that the oil outlet air bag 42 is installed and positioned accurately.

[0059] 2. Assembly of upper cylinder assembly

[0060] (1) Installation of heat sink fins

[0061] Without changing the diameter of the upper cylinder chamber 31, plan the installation position of the cooling fins 2 based on the outer surface area of ​​the upper cylinder body 3. Use a removable connection method (such as bolt connection or snap connection) to secure the cooling fins 2 to the outer surface of the upper cylinder body 3. During installation, ensure that the cooling fins 2 fit tightly against the upper cylinder body 3, and leave enough space to avoid affecting subsequent box assembly and overall engine installation.

[0062] Check the installation firmness of the heat sink fins 2 and make sure there is no looseness after shaking test. Confirm that the surface area of ​​the upper cylinder body 3 after installation meets the design requirements and does not affect the heat dissipation efficiency and overall structural stability.

[0063] (2) Lubrication structure assembly

[0064] Refueling chamber pretreatment: Confirm the location of the refueling chamber 41 on the upper cylinder body 3. Its top penetrates the upper cylinder body 3, and its bottom extends into the upper cylinder body 3 and connects to the upper cylinder chamber 31. Use special tools to clean the inside of the chamber to ensure that there are no impurities blocking the oil path.

[0065] Oil outlet bladder installation: Use existing fixing structures (plug-in card, joint, and hot melt connection) to install the oil outlet bladder 42 to the corresponding chamber position in the upper cylinder chamber 31. Use positioning fixtures to ensure that the oil outlet bladder 42 is accurately installed and firmly connected to the chamber. The fixing effect is verified through tensile testing to ensure that the oil outlet bladder 42 will not separate from the chamber during piston operation.

[0066] Lubricating oil filling: inject a specified amount of lubricating oil from the top of the refueling chamber 41 to ensure that an appropriate amount of lubricating oil is stored in the refueling chamber 41 and the connected chambers. After filling, temporarily block the refueling port to prevent contamination.

[0067] 3. Assembly of lower cylinder assembly

[0068] (1) Lower cylinder chamber treatment

[0069] Clean the bolt holes in the lower cylinder chambers 11 on both sides of the lower cylinder body 1, repair thread damage with a tap, and ensure that the bolt holes align with the corresponding mounting holes for the new energy engine. The lower cylinder chambers 11 are rectangular in design and symmetrically located on both sides of the centerline of the lower cylinder body 1. During installation, ensure that the plane at its lowest point is lower than the plane at the lowest point of the lower cylinder body 1 to increase installation stability.

[0070] Apply a thin layer of sealant evenly around the bolt holes to prevent oil and air leakage after assembly.

[0071] (2) Install side panel positioning

[0072] Check the connectivity between the mounting side plate 12 in the lower cylinder body 1 and the upper cylinder chamber 31 to ensure that there is no obstruction in the passage from the mounting side plate 12 to the lower cylinder body 1 and the outside of the lower cylinder chamber 11. Inspect the surface of the mounting side plate 12 for flatness and, if necessary, grind it to ensure smooth operation of the piston and connecting rod.

[0073] 4. Upper and lower cylinder body assembly

[0074] (1) Closing and positioning

[0075] Place the upper cylinder 3 on the box closing workbench so that the upper cylinder chamber 31 opens downward. Lift the lower cylinder 1 and align it with the bottom of the upper cylinder 3 to ensure that the side plate 12 is correctly connected to the upper cylinder chamber 31 and the central axis of the upper and lower cylinders coincide.

[0076] Slowly lower the cylinder body 1 to fit the two together. During the process, monitor the gap between the mating surfaces to ensure uniformity and no obvious misalignment.

[0077] (2) Sealing and fixing

[0078] Apply sealant evenly on the joint surface of the upper and lower cylinder bodies, and control the thickness of the sealant layer to be 0.3-0.5 mm to prevent the sealant from entering the upper cylinder chamber 31 and the installation side plate 12 channel.

[0079] Use a torque wrench to tighten the connecting bolts in alternating diagonal directions, gradually reaching the specified torque in 2-3 steps (e.g., 50% for the first step, 80% for the second step, and 100% for the third step) to ensure a tight fit and even force distribution between the upper and lower cylinder blocks. Monitor the bolt elongation and clearance between the joints in real time during the tightening process to prevent deformation of the cylinder block due to overtightening.

[0080] 5. Piston and connecting rod installation

[0081] (1) Piston assembly

[0082] Install the piston ring in the piston ring groove, apply a small amount of lubricating oil for lubrication, and install the piston into the upper cylinder chamber 31, ensuring that the opening positions of the piston rings are staggered to avoid alignment.

[0083] Connect the piston and the connecting rod, adjust the connecting rod bearing clearance to the designed value, pass the lower end of the connecting rod through the mounting side plate 12, and connect it to the crankshaft and other components in the lower cylinder body 1 (the specific connection method is determined according to the overall structure of the engine).

[0084] (2) Confirmation of the oil outlet airbag position

[0085] During the installation of the piston, check the position of the oil-gas bag 42 again to ensure that it is in a reasonable position that can be squeezed in the piston's running path, without deviation or jamming, to ensure that the oil-gas bag 42 can be effectively squeezed out when the piston is running, and automatic addition of lubricating oil is achieved.

[0086] 6. Overall fixation and detection

[0087] (1) Connecting to the engine body

[0088] Use bolts to securely connect the upper and lower cylinders of the new energy engine to the main body of the new energy engine through the bolt holes on the lower cylinder chamber 11. Follow the principle of symmetrical installation and tighten the bolts in steps to ensure a smooth installation and a tight fit between the lower cylinder chamber 11 and the engine.

[0089] (2) Sealing test

[0090] Perform air tightness tests on the refueling chamber 41, the joint surfaces of the upper and lower cylinder bodies, the connection parts of the heat dissipation fins, etc., using the air pressure leak detection method or the soapy water method to observe whether there are bubbles to ensure that there is no leakage.

[0091] Inject a proper amount of lubricating oil into the refueling chamber 41, simulate the operation of the piston, observe whether the oil outlet airbag 42 squeezes out oil normally, and check whether the lubricating oil adding function is reliable and whether the oil output meets the design requirements.

[0092] (3) Heat dissipation performance test

[0093] Start the engine for simulated operation and monitor the surface temperature changes of the upper cylinder block 3 with an infrared thermometer to confirm that the heat dissipation effect of the cooling fins 2 is good, the temperature of the upper cylinder block 3 is controlled within a reasonable range, and the installation of the cooling fins does not affect the overall installation stability of the upper cylinder block.

[0094] (4) Installation stability check

[0095] Shake the engine body to check the installation stability of the lower cylinder body 1, confirm that the lowest point plane of the lower cylinder chamber 11 is lower than the lowest point plane of the lower cylinder body 1, the installation bolts are not loose, and there is no abnormal vibration as a whole.

[0096] 7. Process finishing

[0097] (1) Cleaning and labeling

[0098] Clean any remaining sealant, lubricating oil, and other stains from the assembly process, and perform a final clean on all components. Attach identification plates to conspicuous locations on the upper and lower cylinders, indicating the assembly date, operator, component model, and other information.

[0099] (2) Warehousing or delivery

[0100] Cylinder blocks that pass inspection will be stored in warehouses or directly delivered to the engine assembly line according to subsequent production plans. Moisture-proof and anti-collision measures will be taken during storage to ensure that the components are intact during transportation.

[0101] Through the above assembly process, it is ensured that the upper and lower cylinder components of the new energy engine are reliably connected and function normally, meeting the requirements of heat dissipation, lubrication and installation stability, laying the foundation for the overall performance of the engine.

[0102] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0103] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A new energy engine upper and lower cylinder block, characterized in that: include: A lower cylinder body (1) is connected to an upper cylinder body (3), the upper cylinder body (3) is provided with a plurality of upper cylinder chambers (31) for piston movement, the outer side of the upper cylinder body (3) is connected to heat dissipation fins (2), and the upper cylinder body (3) is provided with a lubrication structure (4) for oil supply; The lubricating structure (4) comprises a refueling chamber (41) opened on the upper cylinder body (3), and the refueling chamber (41) is located inside the upper cylinder chamber (31) and is connected to an oil outlet air bag (42) for piston extrusion.

2. The upper and lower cylinder blocks of a new energy engine according to claim 1, characterized in that: The top of the upper cylinder chamber (31) penetrates to the outside of the upper cylinder body (3), and the top of the refueling chamber (41) penetrates to the outside of the upper cylinder body (3).

3. The upper and lower cylinder blocks of a new energy engine according to claim 2, characterized in that: The refueling chamber (41) in the upper cylinder chamber (31) is communicated with each other, and the refueling chamber (41) is communicated with the oil outlet air bag (42).

4. The upper and lower cylinder blocks of a new energy engine according to claim 3, characterized in that: The lower cylinder (1) is located at the bottom of the upper cylinder (3), and the lower cylinder (1) is cylindrical in design.

5. The new energy engine upper and lower cylinder blocks according to claim 1, characterized in that: Both sides of the lower cylinder body (1) are connected to lower cylinder chambers (11), and bolt holes for mounting the lower cylinder body (1) are provided on the lower cylinder chambers (11).

6. The upper and lower cylinder blocks of a new energy engine according to claim 5, characterized in that: Two lower cylinder chambers (11) are provided, and the lower cylinder chambers (11) are symmetrically distributed on the central axis of the lower cylinder body (1), and the plane where the lowest point of the lower cylinder chambers (11) is located is lower than the plane where the lowest point of the lower cylinder body (1) is located.

7. The new energy engine upper and lower cylinder blocks according to claim 6, characterized in that: A mounting side plate (12) is provided in the lower cylinder body (1), and the mounting side plate (12) extends transversely through the lower cylinder body (1) and the outside of the lower cylinder chamber (11).

8. A process for assembling the upper and lower cylinder blocks of a new energy engine according to any one of claims 1 to 7, characterized in that: The process steps are: S1. Process preparation, component pretreatment and tooling equipment debugging; S2. Assemble the upper cylinder assembly, install the cooling fins and assemble the lubrication structure; S3, assemble the lower cylinder assembly, process the lower cylinder chamber and install the side panels; S4. Assemble the upper and lower cylinder bodies, position them, seal and fix them; S5. Install the piston and connecting rod, assemble the piston assembly, and confirm the position of the oil outlet air bag; S6. Overall fixation and inspection, connection with the engine body, sealing inspection, heat dissipation performance test and installation stability inspection.

9. The process for assembling the upper and lower cylinder blocks of a new energy engine according to claim 8, characterized in that: The lubrication structure assembly steps in step S2 are: S11, refueling chamber pretreatment: confirm the position of the refueling chamber (41) on the upper cylinder body (3), the top of which passes through the upper cylinder body (3), the bottom of which extends into the upper cylinder body (3) and is connected to the upper cylinder chamber (31), and use special tools to clean the inside of the chamber to ensure that there are no impurities blocking the oil path; S12, installation of the oil outlet airbag: The oil outlet airbag (42) is installed to the corresponding chamber position in the upper cylinder chamber (31) through the existing fixing structure, and a positioning tool is used to ensure that the oil outlet airbag (42) is accurately installed and firmly connected to the chamber. The fixing effect is verified by a tensile test to ensure that the oil outlet airbag (42) will not separate from the chamber when the piston is running; S13, lubricating oil filling: inject a specified amount of lubricating oil from the top of the refueling chamber (41) to ensure that a proper amount of lubricating oil is stored in the refueling chamber (41) and the connected chambers. After filling, temporarily block the refueling port to prevent contamination.

10. The process for assembling the upper and lower cylinder blocks of a new energy engine according to claim 8, characterized in that: Among them, S4 box closing positioning places the upper cylinder body (3) on the box closing workbench, so that the upper cylinder chamber (31) opens downward, lifts the lower cylinder body (1), aligns it with the bottom of the upper cylinder body (3), ensures that the installation side plate (12) is correctly connected to the upper cylinder chamber (31), and the upper and lower cylinder body central axes coincide; slowly lowers the cylinder body (1) to make the two fit together, monitors the gaps between the mating surfaces during the process, ensures uniformity and no obvious dislocation; seals and fixes, evenly applies sealant on the joint surface of the upper and lower cylinder bodies, and controls the thickness of the glue layer to be 0.3-0.5mm to prevent the sealant from entering the upper cylinder chamber (31) and the installation side plate (12) channel, uses a torque wrench to tighten the connecting bolts in a diagonal alternating order, and gradually reaches the specified torque in 2-3 times to ensure that the upper and lower cylinder bodies are tightly combined and evenly stressed, and monitors the bolt elongation and joint surface gap in real time during the tightening process to prevent the cylinder body from being deformed due to excessive tightening.

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