Piston structure for methanol engine

Abstract

The piston structure for the methanol engine relates to the technical field of engine pistons and comprises a piston head body, a piston rod is movably installed at the top end of the piston head body through a connecting block, a storage block is arranged on the outer ring of the top of the piston head body, and a plurality of oil discharge pipes are fixedly connected to the bottom end of the storage block. The storage block and the oil absorption cotton layer are matched with the piston head body, so that lubricating oil is conveniently discharged out of the piston head body, the effect of lubricating the piston head body is achieved, meanwhile, the operation temperature of the piston head body can be reduced to a certain degree, and the lubricating oil in the storage block can be conveniently added; the problems that lubricating oil is difficult to add for a long time in the using process of a traditional piston structure for the methanol engine, so that the friction force between a piston and an air cylinder is slowly increased in the using process, smooth operation of the piston is affected, and meanwhile the process of adding the lubricating oil after use is tedious are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine pistons, in particular to a piston structure for a methanol engine. Background Art

[0002] The methanol engine is a two-stroke engine. Its working principle is similar to that of a traditional gasoline engine, but it uses methanol as fuel. The piston of the methanol engine also undergoes reciprocating motion to complete the four basic strokes of intake, compression, work and exhaust to convert heat energy into mechanical energy.

[0003] It is difficult to continuously add lubricating oil to the existing methanol engine piston structure during use, which causes the friction between the piston and the cylinder to slowly increase during use, affecting the smooth operation of the piston. At the same time, when adding lubricating oil after use, the piston head needs to be removed or the remaining parts need to be disassembled, which is a cumbersome process. Utility Model Content

[0004] The main purpose of the utility model is to provide a piston structure for a methanol engine, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A piston structure for a methanol engine comprises a piston head body, a piston rod is movably mounted on the top of the piston head body through a connecting block, and a storage block is arranged on the top outer ring of the piston head body;

[0007] The bottom end of the storage block is fixedly connected with a plurality of oil drain pipes, the interior of the storage block is filled with lubricating oil, an oil-absorbing cotton layer is arranged inside the piston head body, and a plurality of equidistantly arranged oil outlet holes are opened on the outer ring of the piston head body. A corrugated hose is connected to the inner side of the storage block, and an end of the corrugated hose away from the storage block is connected to an oil pipeline, and the top of the oil pipeline is connected to an oil inlet sealing port.

[0008] As a further solution of the utility model, a plurality of the oil drain pipes are arranged at equal intervals on the storage block, and one end of the oil drain pipe away from the storage block is in contact with the top surface of the oil-absorbing cotton layer.

[0009] As a further solution of the utility model, the oil delivery pipe is a hard pipe, and the oil delivery pipe and the corrugated hose are both installed on the outer ring of the piston rod through a mounting block, and the mounting block does not contact the connecting block.

[0010] As a further solution of the utility model, a baffle is provided between the connecting block and the opposite side of the corrugated hose, and the bottom end of the baffle is fixedly connected to the top surface of the piston head body.

[0011] As a further solution of the utility model, the oil-absorbing cotton layer is in a cylindrical shape with an open bottom, and the outer wall of the oil-absorbing cotton layer is in contact with the inner wall of the piston head body.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides a storage block and an oil-absorbing cotton layer in combination with a piston head body, so that the lubricating oil in the storage block can be easily absorbed through the oil-absorbing cotton layer, and the lubricating oil can be thrown out from the oil outlet hole through the movement of the piston head body, so that the lubricating oil can be easily discharged to the outside of the piston head body, thereby playing a role in lubricating the piston head body and reducing the operating temperature of the piston head body to a certain extent.

[0014] The corrugated hose, oil delivery pipe and oil inlet sealing port cooperate with the storage block to facilitate the addition of lubricating oil in the storage block. The corrugated hose is soft to avoid major interference with the movement of the piston head body. The adding process does not require disassembly and installation by twisting the bolts back and forth, which facilitates improving the adding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a piston structure for a methanol engine of the utility model;

[0016] Figure 2 This is a cross-sectional view of the connection between the piston head body and the oil-absorbing cotton layer in the overall structure of a piston structure for a methanol engine of the utility model;

[0017] Figure 3 The utility model is a top view of the overall structure of a piston structure for a methanol engine.

[0018] In the figure: 1. Piston head body; 2. Connecting block; 3. Piston rod; 4. Storage block; 5. Oil pipe; 6. Mounting block; 7. Oil inlet seal; 8. Corrugated hose; 9. Baffle; 10. Oil-absorbing cotton layer; 11. Oil outlet hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-3 As shown, a piston structure for a methanol engine comprises a piston head body 1, a piston rod 3 is movably mounted on the top of the piston head body 1 through a connecting block 2, and a storage block 4 is arranged on the top outer ring of the piston head body 1;

[0021] The bottom end of the storage block 4 is fixedly connected to a plurality of oil drain pipes, the interior of the storage block 4 is filled with lubricating oil, an oil-absorbing cotton layer 10 is arranged inside the piston head body 1, and a plurality of equidistantly arranged oil outlet holes 11 are provided on the outer ring of the piston head body 1. A corrugated hose 8 is connected to the inner side of the storage block 4, and an end of the corrugated hose 8 away from the storage block 4 is connected to an oil delivery pipe 5, and the top of the oil delivery pipe 5 is connected to an oil inlet sealing port 7.

[0022] In this embodiment, a plurality of oil drain pipes are arranged equidistantly on the storage block 4, and one end of the oil drain pipe away from the storage block 4 is in contact with the top surface of the oil absorbent cotton layer 10, so that the lubricating oil in the storage block 4 can be easily sucked out through the provided oil absorbent cotton layer 10.

[0023] In this embodiment, the oil pipeline 5 is set as a hard pipe. The oil pipeline 5 and the corrugated hose 8 are both installed on the outer ring of the piston rod 3 through the mounting block 6, and the mounting block 6 does not contact the connecting block 2. The hard pipe setting of the oil pipeline 5 can prevent the bending of the oil pipeline 5 from affecting the movement of the piston rod 3.

[0024] In this embodiment, a baffle 9 is arranged between the connecting block 2 and the opposite side of the corrugated hose 8, and the bottom end of the baffle 9 is fixedly connected to the top surface of the piston head body 1. The baffle 9 is arranged to facilitate blocking the corrugated hose 8 to prevent it from touching the connecting block 2 when deforming, thereby avoiding the corrugated hose 8 from interfering with the movement of the connecting block 2.

[0025] In this embodiment, the oil-absorbing cotton layer 10 is a cylindrical layer with an opening at the bottom, and the outer wall of the oil-absorbing cotton layer 10 is in contact with the inner wall of the piston head body 1. When the piston head body 1 moves, the oil-absorbing cotton layer 10 is driven to swing, so that the lubricating oil absorbed by the oil-absorbing cotton layer 10 can be thrown out from the oil outlet 11 to the outer wall of the piston head body 1, so that a lubricating film is formed on the outer ring of the piston head body 1 to isolate the metal surface, thereby reducing energy loss and extending the service life of the piston head body 1.

[0026] It should be noted that the utility model is a piston structure for a methanol engine. When in use, first, when the piston head body 1 is running, because the lubricating oil is stored in the storage block 4, and an oil drain pipe is provided at the bottom of the storage block 4, and an oil absorbing cotton layer 10 is connected to the end of the oil drain pipe, the oil absorbing cotton layer 10 is provided to suck out the lubricating oil in the storage block 4. At the same time, after the oil absorbing cotton layer 10 is saturated with oil, because the outer wall of the piston head body 1 is provided with an oil outlet hole 11 that matches the oil absorbing cotton layer 10, when the piston head body 1 moves, the oil absorbing cotton layer 10 is driven to swing, so that the lubricating oil absorbed in the oil absorbing cotton layer 10 is thrown out from the oil outlet hole 11 to the outer wall of the piston head body 1, thereby playing the role of adding oil to the piston head body 1, and by spraying the lubricating oil, it is convenient to cool the piston head body 1 to a certain extent;

[0027] After the lubricating oil at the oil-absorbing cotton layer 10 is thrown out, the lubricating oil stored in the storage block 4 will continue to be absorbed so as to keep it moist for a long time. At the same time, after long-term use, since the storage block 4 is connected to the oil pipe 5 and the oil inlet sealing port 7 through the corrugated hose 8, the plug at the oil inlet sealing port 7 can be unscrewed as needed, and the oil inlet sealing port 7 can be pressed against the external refueling gun head, so that the lubricating oil can be transported into the storage block 4 through the oil pipe 5 and the corrugated hose 8, thereby adding the lubricating oil. After the adding process, the plug can be installed back to the oil inlet sealing port 7 to prevent the lubricating oil from leaking.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A piston structure for a methanol engine, comprising a piston head body (1), a piston rod (3) being movably mounted on the top end of the piston head body (1) via a connecting block (2), characterized in that: The top outer ring of the piston head body (1) is provided with a storage block (4); The bottom end of the storage block (4) is fixedly connected to a plurality of oil drain pipes, the interior of the storage block (4) is filled with lubricating oil, an oil-absorbing cotton layer (10) is arranged inside the piston head body (1), and the outer ring of the piston head body (1) is provided with a plurality of equidistantly arranged oil outlet holes (11), the inner side of the storage block (4) is connected to a corrugated hose (8), the end of the corrugated hose (8) away from the storage block (4) is connected to an oil delivery pipe (5), and the top end of the oil delivery pipe (5) is connected to an oil inlet sealing port (7).

2. A piston structure for a methanol engine according to claim 1, characterized in that: The plurality of oil drain pipes are arranged at equal distances on the storage block (4), and one end of the oil drain pipe away from the storage block (4) is in contact with the top surface of the oil-absorbing cotton layer (10).

3. The piston structure for a methanol engine according to claim 1, characterized in that: The oil delivery pipe (5) is a hard pipe. The oil delivery pipe (5) and the corrugated hose (8) are both installed on the outer ring of the piston rod (3) through a mounting block (6), and the mounting block (6) does not contact the connecting block (2).

4. A piston structure for a methanol engine according to claim 3, characterized in that: A baffle (9) is provided between the connecting block (2) and the opposite side of the corrugated hose (8), and the bottom end of the baffle (9) is fixedly connected to the top surface of the piston head body (1).

5. The piston structure for a methanol engine according to claim 2, characterized in that: The oil-absorbing cotton layer (10) is in the shape of a cylinder with an open bottom, and the outer wall of the oil-absorbing cotton layer (10) is in contact with the inner wall of the piston head body (1).

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