Cylinder bore and journal lubrication apparatus and method for diesel engine assembly

Abstract

The application provides a diesel engine assembly cylinder hole and journal lubricating device and method, relates to the technical field of diesel engine assembly lubrication, and comprises an oil injection structure and an oil injection control frame. The oil injection structure comprises multiple oil injection pipes, multiple fixed sleeve pipes and multiple piston columns. One connecting bottom plate is fixedly assembled at one end of the multiple piston columns. An electric push rod B is fixedly connected at the center of one side of the connecting bottom plate. A one-way valve is fixedly connected inside the one end of the piston column. Multiple oil injection small holes are processed inside the oil injection pipe. The technical key points are as follows: the lubricating oil is delivered to the inside of the piston column and stored in the inside of the oil injection pipe. The electric push rod B pushes the connecting bottom plate to drive the multiple piston columns to respectively extend into the inside of the multiple fixed sleeve pipes. The lubricating oil stored in the inside of the oil injection pipe is sprayed out through the inside of the multiple oil injection small holes and adhered to the diesel engine cylinder body cylinder hole and journal, so that the effect of quantitative and rapid lubrication of the internal area of the diesel engine cylinder body can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of diesel engine assembly lubrication, in particular to a cylinder hole and journal lubricating device and method during diesel engine assembly. BACKGROUND

[0002] A diesel engine is an engine that uses diesel fuel for combustion. Diesel engines are generally characterized by high torque output, high efficiency, and superior fuel economy. The working process of a diesel engine is similar to that of a gasoline engine, and each working cycle goes through four strokes: intake, compression, power, and exhaust. However, the fuel used in a diesel engine is diesel, which has a higher viscosity than gasoline and is less volatile, but has a lower self-ignition temperature than gasoline. Therefore, the formation of the combustible mixture and the ignition method are different from those of a gasoline engine. The main difference is that the mixture in the cylinder of a diesel engine is compression ignited rather than ignited.

[0003] The main components of a diesel engine generally include a body, a crankshaft and connecting rod mechanism, a valve train, a fuel system, a lubrication system, a cooling system, and an electrical system. The body of a diesel engine is the skeleton that supports and mounts other components, including the cylinder block, cylinder liner, cylinder head, cylinder gasket, oil pan, flywheel housing, timing gear housing, and front and rear feet. When assembling the piston and connecting rod, the engine cylinder hole and the crankshaft journal need to be lubricated to facilitate the smooth installation of related components.

[0004] In the prior art, when assembling the piston and connecting rod, the engine cylinder hole and the crankshaft journal are mainly lubricated by manual oil injection. In the production of engines, the manual lubrication method is inefficient and prone to under-lubrication or over-lubrication. SUMMARY

[0005] To overcome the shortcomings of the prior art, the present application provides a cylinder hole and journal lubricating device and method during diesel engine assembly. The lubricating oil is delivered to the inside of the piston column, and is sprayed from one end of the piston column to the other end through a one-way valve. The oil injection pipe slides into the inside of the diesel engine cylinder hole outside the piston column, and the lubricating oil enters the inside of the oil injection pipe for storage. The electric push rod B assembled with the positioning seat B pushes the coupling bottom plate to drive multiple piston columns to extend into the inside of multiple fixed sleeves, and the lubricating oil stored in the inside of the oil injection pipe is sprayed through the inside of multiple oil injection small holes, so that the oil adheres to the diesel engine cylinder hole and the journal. This achieves the technical effect of quantitative and rapid lubrication of the internal area of the diesel engine cylinder.

[0006] The technical solution adopted by the embodiments of the present application to solve the technical problems is as follows:

[0007] A cylinder bore and journal lubrication device for assembling a diesel engine, comprising an oil injection structure and an oil injection control frame, wherein the oil injection control frame is assembled and fixed to the oil injection structure;

[0008] The fuel injection structure includes multiple fuel injection pipes, multiple fixed sleeves and multiple piston rods. One end of the multiple piston rods is assembled and fixed with a connecting base plate. The center of one side of the connecting base plate is assembled and connected with an electric push rod B. The inside of one end of the piston rod is assembled and connected with a one-way valve. The interior of the fuel injection pipe is machined with multiple fuel injection holes. The multiple fuel injection holes are arranged at equal intervals along the axis of the fuel injection pipe and around the axis of the fuel injection pipe.

[0009] The plurality of fuel injection pipes correspond one-to-one to the plurality of cylinder holes inside the plurality of diesel engine cylinder bodies, the plurality of fuel injection pipes are slidably connected to the outside of the plurality of fixed sleeves, and the plurality of piston rods correspond one-to-one to the plurality of fixed sleeves;

[0010] The lubricating oil is sprayed out from one end of the piston rod through the one-way valve and the other end of the piston rod, and enters the interior of the oil injection pipe. The electric push rod B pushes the connecting base plate to drive multiple piston rods to extend into the interior of multiple fixed sleeves respectively, and sprays the oil stored in the oil injection pipe through the interior of multiple oil injection holes.

[0011] In one possible implementation, the fuel injection control frame includes a conductive slide rail, which includes a track. The outside of the track is slidably connected to a slide seat, the top of the slide seat is assembled and connected to a base plate B, the surface of one end of the base plate B is assembled and connected to a corner block A, one side of the bottom of the corner block A is assembled and connected to a corner block B, one side of the corner block B is assembled and connected to an electric push rod A, the movable end of the electric push rod A is assembled and connected to a seat plate B, and one end of the seat plate B is assembled and connected to a base; multiple fixed sleeves all pass through the interior of the base, and one end of the fixed sleeve is assembled and fixed to the surface of the base, and the fuel injection pipe is accommodated in the interior of the base and slides out from the interior of the base.

[0012] In one possible implementation, the outer wall of the piston column is processed with multiple annular grooves, and the interiors of the multiple annular grooves are all sleeved with O-rings; the piston column is slidably connected to the interior of the fixed sleeve, and the gap between the inner wall of the fixed sleeve and the surface of the piston column is filled by the O-ring.

[0013] In one possible implementation, the outer wall of the fixed sleeve is processed with two limit grooves, and the internal pin connection of one end of the two fuel injection pipes is connected with two limit pin rods, and one end of the two limit pin rods is respectively slidably connected to the inside of the two limit grooves.

[0014] In one possible implementation, the middle part of the electric push rod B is assembled and connected with a positioning seat B, a seat plate A is provided on one side of the positioning seat B, and four long rods are welded to the surface of one side of the seat plate A; the positioning seat B is movably connected to the outside of the four long rods, and the movable end of the electric push rod B is movably connected to the inside of the positioning seat B.

[0015] In one possible implementation, the top of one side of the corner block B is assembled and connected with a guide sleeve, the inside of the guide sleeve is slidably connected with a guide rod A, and one end of the guide rod A is assembled and fixed to a corner of the top of the seat plate B.

[0016] In one possible implementation, the bottom of the slide is assembled with a base plate A, one end of the base plate A is assembled with a combined plate frame, the bottom of the combined plate frame is assembled with a guide rod B, and a positioning seat A is provided on the outside of the guide rod B; when the slide slides on the outside of the track, the guide rod B is driven to slide up and down inside the positioning seat A through the base plate A and the combined plate frame.

[0017] In one possible implementation, the track, positioning seat A and seat plate A form a rectangle, and steel structure beams can be used between the track, positioning seat A and seat plate A to support the assembly work of the track, positioning seat A and seat plate A.

[0018] A method for lubricating cylinder bores and journals during assembly of a diesel engine, comprising:

[0019] Step 1: Transport the diesel engine cylinder to the front of the bottom side of the injection structure and fix it with the tooling;

[0020] Step 2: Use the slide on the conductive rail to slide from top to bottom on the outside of the track. The guide rod B and the positioning seat A cooperate to position the oil injection structure carried by the corner block A, the seat plate B and the base to move to the bottom, so that the oil injection structure and the cylinder hole on the diesel engine cylinder block are in the same horizontal plane.

[0021] Step 3: The electric push rod A controls the base plate B to drive the multiple fixed sleeves inside the base forward. With the help of the piston rods inside the fixed sleeves and the connecting bottom plate and electric push rod B at one end of the multiple piston rods, the positioning seat B slides outside the four long rods;

[0022] Step 4: The lubricating oil is sprayed from one end of the piston rod through the one-way valve and out of the other end of the piston rod, so that the oil injection pipe slides outside the piston rod and extends into the inner side of the cylinder hole of the diesel engine cylinder block under the cooperation of the limit groove and the limit pin rod, and the lubricating oil enters the interior of the oil injection pipe for storage;

[0023] Step 5: The electric push rod B pushes the connecting base plate to drive multiple piston rods to extend into the interior of multiple fixed sleeves, and spray the lubricating oil stored in the injection pipe through the interior of multiple injection holes.

[0024] The beneficial effects of this application are:

[0025] First, in this solution, the lubricating oil is delivered to the interior of the piston rod and sprayed out from one end of the piston rod through a one-way valve and out from the other end of the piston rod, so that the injection pipe slides outside the piston rod and extends into the inner side of the cylinder hole of the diesel engine cylinder block, and the lubricating oil enters the interior of the injection pipe and is stored. The electric push rod B assembled with the positioning seat B pushes the connecting base plate to drive the multiple piston rods to extend into the interiors of the multiple fixed sleeves respectively, and the lubricating oil stored in the injection pipe is sprayed out through the interiors of the multiple injection holes, so that the oil adheres to the cylinder hole and journal of the diesel engine cylinder block, thereby achieving the effect of quantitatively and quickly lubricating the internal area of ​​the diesel engine cylinder block;

[0026] Second, in this solution, the slide is used to slide from top to bottom on the outside of the track, and the fuel injection structure carried by the corner block A, the seat plate B and the base moves toward the bottom, so that the fuel injection structure and the cylinder hole on the diesel engine cylinder block are located in the same horizontal plane. Then, the electric push rod A is used to control the seat plate B to drive the multiple fixed sleeves inside the base toward the direction of the diesel engine cylinder block, until the multiple fuel injection pipes outside the multiple fixed sleeves on the base are directly opposite to the cylinder holes on the diesel engine cylinder block, which is conducive to the movement of the diesel engine cylinder block at the bottom of the fuel injection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is one of the overall structural diagrams of the present invention in use;

[0028] Figure 2 This is the second schematic diagram of the overall structure of the present invention in use;

[0029] Figure 3 It is a structural schematic diagram of the diesel engine cylinder block and multiple fuel injection pipes in a disconnected state according to the present invention;

[0030] Figure 4 Schematic diagram of the connection structure between the guide sleeve and the guide rod A of the present invention;

[0031] Figure 5 is a schematic cross-sectional view of the base of the present invention;

[0032] Figure 6 Schematic cross-sectional view of the fuel injection pipe and the fixed sleeve of the present invention;

[0033] Figure 7 For the present invention Figure 6 A magnified schematic diagram of part A in the middle;

[0034] Figure 8A sectional view of the piston column of the present application.

[0035] Fig. 1 diesel engine cylinder; 2, angle block A; 3, one-way valve; 4, guide sleeve seat; 5, guide rod A; 6, limit pin rod; 7, electric push rod A; 8, conductive slide rail; 801, rail; 802, slide; 9, positioning seat A; 10, guide rod B; 11, bottom plate A; 12, combined plate frame; 13, electric push rod B; 14, seat plate A; 15, base; 16, bottom plate B; 17, seat plate B; 18, positioning seat B; 19, piston column; 20, coupling bottom plate; 21, oil injection pipe; 22, angle block B; 23, fixed sleeve; 24, ring groove; 25, O-ring; 26, limit strip groove. DETAILED DESCRIPTION

[0036] The technical solution in the embodiments of the present application is to solve the problems in the above background art, and the general idea is as follows:

[0037] Embodiments:

[0038] This embodiment introduces the specific structure of a cylinder hole and journal lubricating device and method during diesel engine assembly, and specifically refers to Figures 1-8 As shown in the figure, it includes an oil injection structure and an oil injection control frame fixedly assembled with the oil injection structure, the oil injection structure includes a plurality of oil injection pipes 21, a plurality of fixed sleeves 23 and a plurality of piston columns 19, one end of the plurality of piston columns 19 is fixedly assembled with a coupling bottom plate 20, the center of one side of the coupling bottom plate 20 is fixedly connected with an electric push rod B 13, the inside of one end of the piston column 19 is fixedly connected with a one-way valve 3, the plurality of oil injection pipes 21 correspond one-to-one with a plurality of cylinder holes inside the plurality of diesel engine cylinders 1, the plurality of oil injection pipes 21 are slidingly connected to the outside of the plurality of fixed sleeves 23, and the plurality of piston columns 19 correspond one-to-one with the plurality of fixed sleeves 23.

[0039] Among them, in order to make the lubricating oil be sprayed out from the other end of the piston column 19 through the one-way valve 3 from one end of the piston column 19, and after entering the inside of the oil injection pipe 21, it can be sprayed out, lubricating the inner wall of the cylinder hole and the journal, as Figure 5 and Figure 6 As shown in the figure, a plurality of oil injection small holes are processed in the inside of the oil injection pipe 21, by arranging the plurality of oil injection small holes at equal intervals along the axis of the oil injection pipe 21 and around the axis of the oil injection pipe 21, the oil sprayed out from the inside of the oil injection small holes of the oil injection pipe 21 can act on the area needing lubrication inside the diesel engine cylinder 1 as much as possible;

[0040] Secondly, by starting the electric push rod B 13, the electric push rod B 13 pushes the coupling bottom plate 20 to drive the plurality of piston columns 19 to respectively extend into the inside of the plurality of fixed sleeves 23, and the oil stored in the inside of the oil injection pipe 21 is sprayed out through the inside of the plurality of oil injection small holes;

[0041] As Figure 1 , Figure 2 and Figure 3 The fuel injection control frame includes a conductive slide rail 8, which includes a track 801. The outer portion of the track 801 is slidably connected to a slide seat 802. The top of the slide seat 802 is assembled and connected to a bottom plate B16. The surface of one end of the bottom plate B16 is assembled and connected to an angle block A2. One side of the bottom of the angle block A2 is assembled and connected to an angle block B22. One side of the angle block B22 is assembled and connected to an electric push rod A7. The movable end of the electric push rod A7 is assembled and connected to a seat plate B17. One end of the seat plate B17 is assembled and connected to the base 15.

[0042] By allowing the plurality of fixed sleeves 23 to pass through the interior of the base 15 and fixing one end of the fixed sleeve 23 to the surface of the base 15, the fuel injection pipe 21 can be accommodated in the interior of the base 15, preventing the fuel injection pipe 21 from extending outside the fixed sleeve 23 and affecting the orderly alignment of the diesel engine cylinder block 1 and the plurality of fuel injection pipes 21. When the fuel injection pipe 21 slides outside the fixed sleeve 23 and slides out from the interior of the base 15, the fuel injection pipe 21 can extend into the cylinder hole inside the diesel engine cylinder block 1.

[0043] Secondly, in order to ensure that the lubricating oil stored in the oil injection pipe 21 can be pressed out from the oil injection hole in a pressurized manner when the piston rod 19 moves inside the fixed sleeve 23, as shown in FIG. Figure 6 and Figure 7 As shown, the outer wall of the piston rod 19 is processed with multiple annular grooves 24, and the interiors of the multiple annular grooves 24 are sleeved with O-rings 25. By making the piston rod 19 slidably connected to the interior of the fixed sleeve 23, when the O-ring 25 fills the gap between the inner wall of the fixed sleeve 23 and the surface of the piston rod 19, the piston rod 19 can ensure the piston movement and pressurization effect inside the fixed sleeve 23;

[0044] Furthermore, in order to prevent the fuel injection pipe 21 from being separated from one end of the fixed sleeve 23 when sliding outside the fixed sleeve 23, Figure 7 As shown, the outer wall of the fixed sleeve 23 is processed with two limit grooves 26. Two limit pins 6 are pin-connected to the inside of one end of the two fuel injection pipes 21. By making one end of the two limit pins 6 slidably connected to the inside of the two limit grooves 26, the limit grooves 26 and the limit pins 6 can be used to control the range of the fuel injection pipes 21 when sliding outside the fixed sleeve 23.

[0045] Furthermore, in order to enable the electric push rod B13 to control the connection base plate 20 to push the multiple piston rods 19 to slide inside the multiple fixed sleeves 23, as shown in FIG. Figure 2As shown, the middle part of the electric push rod B13 is assembled and connected with a positioning seat B18. A seat plate A14 is provided on one side of the positioning seat B18. Four long rods are welded to the surface of one side of the seat plate A14. By movably connecting the positioning seat B18 to the outside of the four long rods and movably connecting the movable end of the electric push rod B13 to the inside of the positioning seat B18, the positioning seat B18 can be used as a support to allow the electric push rod B13 to directly control the movement of the connecting base plate 20 toward one side of the base 15.

[0046] like Figure 2 and Figure 3 As shown, a guide sleeve 4 is assembled and connected to the top of one side of the corner block B22. A guide rod A5 is slidably connected to the inside of the guide sleeve 4. By assembling and fixing one end of the guide rod A5 to a corner of the top of the seat plate B17, the guide sleeve 4 can be used to position the guide rod A5 assembled to the seat plate B17 when the electric push rod A7 controls the seat plate B17 to drive the base 15 forward, thereby ensuring the stability of the movement of the multiple fuel injection pipes 21 driven by the base 15.

[0047] At the same time, during the movement of the base 15, the positioning seat B18 connected to the electric push rod B13 slides outside the four long rods to adapt to the movement of the base 15;

[0048] like Figure 1 and Figure 2 As shown, the bottom of the slide 802 is assembled and connected to the bottom plate A11, one end of the bottom plate A11 is assembled and connected to the combined plate frame 12, the bottom of the combined plate frame 12 is assembled and connected to the guide rod B10, and the outer part of the guide rod B10 is provided with a positioning seat A9;

[0049] By making the slide 802 slide outside the track 801, the guide rod B10 can be driven to slide up and down inside the positioning seat A9 with the help of the bottom plate A11 and the combined plate frame 12. The injection control frame controls the vertical movement and positioning of the injection structure through the slide 802 and the track 801 to ensure the stability of the injection structure's vertical movement.

[0050] In some examples, the track 801, the positioning seat A9, and the seat plate A14 form a rectangle, and steel beams can be used between the track 801, the positioning seat A9, and the seat plate A14 to support the assembly of the track 801, the positioning seat A9, and the seat plate A14, and can also be assembled to the existing concrete structure.

[0051] When using the cylinder bore and journal lubrication device to lubricate the cylinder bore and journal during assembly of the diesel engine:

[0052] First, the diesel engine cylinder 1 is transported to the front of the bottom side of the injection structure and fixed by a tooling (including but not limited to a transport rack, a robotic arm, a lifting machine, etc.);

[0053] Then, the slide 802 on the conductive rail 8 slides from top to bottom outside the track 801, positioning the fixed seat A9 for the guide rod B10 to ensure the stability of the slide 802 as it moves up and down outside the track 801. This allows the oil injection structure carried by the corner block A2, seat plate B17, and base 15 to move toward the bottom, placing the oil injection structure and the cylinder bore on the diesel engine cylinder block 1 in the same horizontal plane.

[0054] Next, the electric push rod A7 controls the seat plate B17 to drive the multiple fixed sleeves 23 inside the base 15. With the guide rod A5, which is assembled and fixed to the corner block A2, positioning the guide sleeve 4, which is fixed to the seat plate B17, the multiple fixed sleeves 23 advance toward the diesel engine cylinder block 1 until the multiple injection pipes 21 outside the multiple fixed sleeves 23 on the base 15 are aligned with the cylinder holes on the diesel engine cylinder block 1. (During this process, the piston rods 19 inside the fixed sleeves 23, the connecting base plate 20 at one end of the multiple piston rods 19, and the electric push rod B13 enable the positioning seat B18 to slide outside the four long rods, thus ensuring stable movement of the base 15 in the horizontal plane toward the diesel engine cylinder block 1).

[0055] Subsequently, the lubricating oil is delivered to the interior of the piston rod 19 (the lubricating oil delivery method in the hydraulic system can be used), and is sprayed out from one end of the piston rod 19 through the one-way valve 3 and the other end of the piston rod 19. The oil injection pipe 21, in cooperation with the limiting groove 26 and the limiting pin 6, slides outside the piston rod 19 and extends into the inner side of the cylinder hole of the diesel engine cylinder block 1, and the lubricating oil enters the interior of the oil injection pipe 21 for storage.

[0056] Finally, the electric push rod B13 assembled with the positioning seat B18 pushes the connecting base 20 to drive the multiple piston rods 19 to extend into the interior of the multiple fixed sleeves 23, and the lubricating oil stored in the injection pipe 21 is sprayed out through the multiple injection holes, and the oil is attached to the cylinder hole and journal of the diesel engine cylinder block 1;

[0057] At the same time, when the lubrication work of the diesel engine cylinder block 1 is completed, the electric push rod B13 controls the piston column 19 to retract quickly. With the help of the negative pressure state formed inside the injection pipe 21, the injection pipe 21 can slide outside the fixed sleeve 23 and be quickly retracted to the inside of the base 15, making it convenient for the diesel engine cylinder block 1 to be transferred to the next process.

[0058] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A cylinder bore and journal lubrication device for diesel engine assembly, characterized in that: include: Fuel injection structure; as well as The fuel injection control frame is assembled and fixed with the fuel injection structure; The fuel injection structure includes a plurality of fuel injection pipes (21), a plurality of fixed sleeves (23) and a plurality of piston rods (19), one end of each of the plurality of piston rods (19) is fixedly mounted with a connecting base plate (20), the center of one side of the connecting base plate (20) is mounted with an electric push rod B (13), the interior of one end of the piston rod (19) is mounted with a one-way valve (3), the interior of the fuel injection pipe (21) is machined with a plurality of fuel injection holes, and the plurality of fuel injection holes are arranged at equal intervals along the axis of the fuel injection pipe (21) and around the axis of the fuel injection pipe (21); The fuel injection control frame includes a conductive slide rail (8), the conductive slide rail (8) includes a track (801), the outer portion of the track (801) is slidably connected to a slide seat (802), the top of the slide seat (802) is assembled and connected to a base plate B (16), the surface of one end of the base plate B (16) is assembled and connected to a corner block A (2), one side of the bottom of the corner block A (2) is assembled and connected to a corner block B (22), one side of the corner block B (22) is assembled and connected to an electric push rod A (7), the movable end of the electric push rod A (7) is assembled and connected to a seat plate B (17), and one end of the seat plate B (17) is assembled and connected to a base (15); The plurality of fuel injection pipes (21) correspond one-to-one to the plurality of cylinder holes inside the plurality of diesel engine cylinder bodies (1), the plurality of fuel injection pipes (21) are slidably connected to the outside of the plurality of fixed sleeves (23), and the plurality of piston rods (19) correspond one-to-one to the plurality of fixed sleeves (23); The plurality of fixed sleeves (23) are all passed through the interior of the base (15), and one end of the fixed sleeve (23) is assembled and fixed to the surface of the base (15); the oil injection pipe (21) is received in the interior of the base (15) and slides out from the interior of the base (15); The lubricating oil is ejected from one end of the piston rod (19) through the one-way valve (3) and the other end of the piston rod (19) and enters the interior of the oil injection pipe (21). The electric push rod B (13) pushes the connecting base plate (20) to drive the multiple piston rods (19) to extend into the interior of the multiple fixed sleeves (23) respectively, and ejects the oil stored in the oil injection pipe (21) through the interior of the multiple oil injection holes.

2. A cylinder bore and journal lubrication device for assembling a diesel engine according to claim 1, characterized in that: The outer wall of the piston rod (19) is processed with a plurality of annular grooves (24), and the interiors of the plurality of annular grooves (24) are sleeved with O-rings (25); The piston column (19) is slidably connected to the interior of the fixed sleeve (23), and the gap between the inner wall of the fixed sleeve (23) and the surface of the piston column (19) is filled by an O-ring (25).

3. A cylinder bore and journal lubrication device for assembling a diesel engine according to claim 1, characterized in that: The outer wall of the fixed sleeve (23) is processed with two limit strip grooves (26), and the inner pin connection of one end of the two injection pipes (21) is connected to two limit pin rods (6), and one end of the two limit pin rods (6) is respectively slidably connected to the inside of the two limit strip grooves (26).

4. A cylinder bore and journal lubrication device for assembling a diesel engine as claimed in claim 1, characterized in that: The middle part of the electric push rod B (13) is assembled and connected with a positioning seat B (18), one side of the positioning seat B (18) is provided with a seat plate A (14), and the surface of one side of the seat plate A (14) is welded with four long rods; The positioning seat B (18) is movably connected to the outside of the four long rods, and the movable end of the electric push rod B (13) is movably connected to the inside of the positioning seat B (18).

5. The cylinder bore and journal lubrication device for assembling a diesel engine according to claim 1, characterized in that: The top of one side of the corner block B (22) is assembled and connected to a guide sleeve (4), and the inside of the guide sleeve (4) is slidably connected to a guide rod A (5), and one end of the guide rod A (5) is assembled and fixed to a corner of the top of the seat plate B (17).

6. A cylinder bore and journal lubrication device for assembling a diesel engine as claimed in claim 1, characterized in that: The bottom of the slide (802) is assembled and connected to a bottom plate A (11), one end of the bottom plate A (11) is assembled and connected to a combined plate frame (12), the bottom of the combined plate frame (12) is assembled and connected to a guide rod B (10), and a positioning seat A (9) is provided on the outside of the guide rod B (10); When the slide seat (802) slides outside the track (801), the guide rod B (10) is driven to slide up and down inside the positioning seat A (9) through the bottom plate A (11) and the combined plate frame (12).

7. A cylinder bore and journal lubrication device for assembling a diesel engine as claimed in claim 1, characterized in that: The track (801), the positioning seat A (9) and the seat plate A (14) are arranged in a rectangular shape. Steel structure beams are used between the track (801), the positioning seat A (9) and the seat plate A (14) to support the assembly of the track (801), the positioning seat A (9) and the seat plate A (14).

8. A method for lubricating cylinder bores and journals during assembly of a diesel engine, which is implemented by using a cylinder bore and journal lubricating device for assembly of a diesel engine according to any one of claims 1 to 7, characterized in that: include: Step 1: transport the diesel engine cylinder body (1) to the front of one side of the bottom of the fuel injection structure and fix it by clamping it with a tool; Step 2: Use the slide seat (802) on the conductive slide rail (8) to slide from the top to the bottom outside the track (801), and the guide rod B (10) and the positioning seat A (9) cooperate to position, driving the injection structure carried by the corner block A (2), the seat plate B (17) and the base (15) to move toward the bottom, so that the injection structure and the cylinder hole on the diesel engine cylinder block (1) are located in the same horizontal plane; Step 3: The electric push rod A (7) controls the seat plate B (17) to drive the multiple fixed sleeves (23) inside the base (15) to move forward, and with the help of the piston rod (19) inside the fixed sleeve (23) and the connecting bottom plate (20) at one end of the multiple piston rods (19) and the electric push rod B (13), the positioning seat B (18) slides outside the four long rods; Step 4: The lubricating oil is sprayed from one end of the piston rod (19) through the one-way valve (3) and the other end of the piston rod (19), so that the oil injection pipe (21) slides outside the piston rod (19) and extends into the inner side of the cylinder hole of the diesel engine cylinder block (1) under the cooperation of the limiting groove (26) and the limiting pin rod (6), and the lubricating oil enters the interior of the oil injection pipe (21) for storage; Step 5: The electric push rod B (13) pushes the connecting base plate (20) to drive the multiple piston rods (19) to extend into the interior of the multiple fixed sleeves (23) respectively, and spray the lubricating oil stored in the injection pipe (21) through the interior of the multiple injection holes.

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