High-wear-resistance piston

Abstract

The utility model belongs to the technical field of pistons, and particularly relates to a high-wear-resistance piston. Threaded holes are symmetrically formed in the side wall of a piston body, connecting blocks are fixedly connected to the threaded holes in a threaded mode, the connecting blocks are made of wear-resistant steel, the overall wear resistance of the piston can be improved, meanwhile, split arrangement is adopted, machining is easier and more convenient, and the service life of the piston is prolonged. The mounting hole used for being connected with the piston pin is formed in the middle of the connecting block, stable movement of the piston in the air cylinder is guaranteed, the lubricating assembly is arranged on the connecting block, the piston pin can be lubricated through the lubricating assembly under the condition that the piston pin is not disassembled, the working efficiency is improved, abrasion is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of piston technology, and in particular relates to a high wear-resistant piston. Background Technology

[0002] In an engine, the piston is a crucial component of a reciprocating internal combustion engine. It withstands gas pressure and transmits this force to the crankshaft via the piston pin and connecting rod, causing the crankshaft to rotate and output power. Piston rings are embedded inside the piston grooves and can be used to seal excess oil in the combustion chamber. After prolonged use, the piston pin installed in its pin hole will wear down, thus requiring lubrication. Lubrication requires disassembly, which is inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a high wear-resistant piston to address the aforementioned technical problems, thereby solving the issues raised in the background section.

[0004] In view of this, the present invention provides a high wear-resistant piston, wherein threaded holes are symmetrically opened on the side wall of the piston body;

[0005] A connecting block is threadedly fixed to a threaded hole, and a mounting hole for connecting a piston pin is provided in the middle of the connecting block.

[0006] Lubrication components are provided on the connecting block.

[0007] In the above technical solution, the lubrication component further includes:

[0008] An oil storage chamber is provided on the front side of the inner cavity of the connecting block;

[0009] A lubrication pipe is connected to the rear side of the oil reservoir;

[0010] The end of the lubrication tube away from the oil reservoir is connected to the injection tube;

[0011] An injection pipe is connected to the front side of the oil storage chamber;

[0012] An annular oil groove is provided in the inner cavity of the connecting block, and the annular oil groove is connected to the end of the injection tube away from the lubrication tube.

[0013] The connecting block has several oil outlet holes evenly distributed around its circumference on its inner wall. One end of each oil outlet hole is connected to the mounting hole, and the other end is connected to the annular oil groove.

[0014] In the above technical solution, a one-way valve is further connected to the surface of the lubrication pipe.

[0015] In the above technical solution, a cap is provided at the end of the injection pipe away from the oil storage cavity, and a cross groove is formed on the surface of the end of the cap away from the oil storage cavity.

[0016] In the above technical solution, furthermore, the upper outer wall of the piston body is provided with several gas ring grooves, and a piston ring is installed on each gas ring groove.

[0017] In the above technical solution, the piston ring further includes:

[0018] Piston rings are made up of several separate piston ring parts;

[0019] A connecting rod is fixedly connected to one side of the piston ring assembly;

[0020] Both ends of the connecting rod are fixedly connected with protrusions;

[0021] The piston ring assembly has an installation groove on the other side, and the installation groove is compatible with the connecting rod.

[0022] In the above technical solution, the protrusion is further configured in a hemispherical shape, and the connecting rod is fixed vertically on the piston ring body.

[0023] In the above technical solution, a heat dissipation ring groove is further provided on the lower outer wall of the piston body, and a number of heat dissipation holes are evenly arranged in a circle on the heat dissipation ring groove.

[0024] The beneficial effects of this utility model are as follows:

[0025] 1. The piston body has symmetrical threaded holes on its side walls, and connecting blocks are fixedly connected to the threaded holes. The design is a split design, which makes it easier to process.

[0026] 2. The connecting block is equipped with a lubrication component, which can lubricate the piston pin without disassembling it, thereby improving working efficiency, reducing wear, and extending service life.

[0027] 3. The addition of heat dissipation ring grooves and holes can effectively improve the heat dissipation performance of the piston and extend its service life. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is an exploded view of this utility model;

[0030] Figure 3 This is a cross-sectional schematic diagram of the connecting block of this utility model;

[0031] Figure 4 This is a schematic diagram of the lubrication component structure of this utility model;

[0032] Figure 5This is a schematic diagram of the internal structure of the connecting block of this utility model;

[0033] Figure 6 This is a utility model Figure 3 A magnified view of a section at point A in the middle;

[0034] Figure 7 This is a schematic diagram of the split structure of the piston ring of this utility model;

[0035] The markings in the diagram are as follows: 1-piston body, 2-threaded hole, 3-connecting block, 4-mounting hole, 5-oil reservoir, 6-lubricating pipe, 7-injection pipe, 8-injection pipe, 9-annular oil groove, 10-oil outlet, 11-one-way valve, 12-sealing cap, 13-gas ring groove, 14-piston ring, 15-heat dissipation ring groove, 16-piston ring split, 17-connecting rod, 18-protrusion block, 19-mounting groove, 20-heat dissipation hole. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0037] Example 1:

[0038] This embodiment provides a high wear-resistant piston, comprising:

[0039] Piston body 1, with threaded holes 2 symmetrically opened on the side wall of piston body 1;

[0040] Connecting block 3 is threadedly fixed to threaded hole 2. Connecting block 3 has a mounting hole 4 in the middle for connecting piston pin.

[0041] A lubrication component is provided on the connecting block 3.

[0042] As can be seen in this embodiment, the piston body 1 has symmetrically threaded holes 2 on its side wall. A connecting block 3 is threadedly fixed to the threaded hole 2. The connecting block 3 is made of wear-resistant steel, which can improve the overall wear resistance of the piston. At the same time, the split design makes it easier to process. The connecting block 3 has an installation hole 4 in the middle for connecting the piston pin, which ensures the stable movement of the piston in the cylinder. The connecting block 3 is equipped with a lubrication component, which can lubricate the piston pin without disassembling it, thereby improving working efficiency, reducing wear, and extending service life.

[0043] Example 2:

[0044] This embodiment provides a high wear-resistant piston, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] The lubrication components include:

[0046] Oil storage chamber 5 is provided on the front side of the inner cavity of connecting block 3;

[0047] Lubrication pipe 6 is connected to the rear side of oil storage chamber 5;

[0048] The injection tube 7 is connected to the end of the lubrication tube 6 away from the oil storage chamber 5.

[0049] Injection pipe 8 is connected to the front side of oil storage chamber 5;

[0050] An annular oil groove 9 is provided in the inner cavity of the connecting block 3. The annular oil groove 9 is connected to the end of the injection tube 7 away from the lubrication tube 6.

[0051] Oil outlet 10: Several oil outlet holes 10 are evenly distributed around the inner wall of the connecting block 3. One end of the oil outlet hole 10 is connected to the mounting hole 4, and the other end is connected to the annular oil groove 9.

[0052] As can be seen from this embodiment, lubricating oil is injected into the oil storage chamber 5 through the injection pipe 8, enters the lubrication pipe 6 through the oil storage chamber 5, is gradually injected into the injection pipe 7 through the lubrication pipe 6, flows into the annular oil groove 9 through the injection pipe 7, and then flows to multiple oil outlet holes 10 through the annular oil groove 9. This can lubricate the piston pin installed on the mounting hole 4, reduce wear, and extend service life.

[0053] Example 3:

[0054] This embodiment provides a high wear-resistant piston, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0055] A one-way valve 11 is connected to the surface of the lubrication pipe 6.

[0056] As can be seen from this embodiment, by setting a one-way valve 11, it is possible to prevent lubricating oil from flowing back into the oil storage chamber 5.

[0057] Example 4:

[0058] This embodiment provides a high wear-resistant piston, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0059] A cap 12 is provided at the end of the injection pipe 8 away from the oil storage chamber 5, and a cross groove is formed on the surface of the end of the cap 12 away from the oil storage chamber 5.

[0060] As can be seen from this embodiment, the surface of the injection pipe 8 is provided with external threads, and the inner cavity of the cap 12 is provided with internal threads that are compatible with the external threads. The cap 12 is installed at one end of the injection pipe 8, and the cap 12 does not protrude from the connecting block 3. By setting the cap 12, the injection pipe 8 can be protected to prevent the injection pipe 8 from being blocked. The surface of the end of the cap 12 away from the oil storage cavity 5 is provided with a cross groove for easy disassembly.

[0061] Example 5:

[0062] This embodiment provides a high wear-resistant piston, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0063] The upper outer wall of the piston body 1 has several gas ring grooves 13, and a piston ring 14 is installed on each gas ring groove 13.

[0064] As can be seen from this embodiment, a piston ring 14 is installed on each gas ring groove 13 to seal the combustible mixture in the combustion chamber.

[0065] Example 6:

[0066] This embodiment provides a high wear-resistant piston, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0067] Piston ring 14 includes:

[0068] Piston ring 16, piston ring 14 is composed of several piston ring 16 spliced ​​together;

[0069] Connecting rod 17 is fixedly connected to one side of piston ring split 16;

[0070] Both ends of the connecting rod 17 are fixedly connected to the protrusion 18;

[0071] Mounting groove 19 is provided on the other side of piston ring split 16, and mounting groove 19 is adapted to connecting rod 17.

[0072] As can be seen from this embodiment, the piston ring segment 16 is made of a material with impact toughness, elasticity, and sufficient mechanical strength. The piston ring 14 is configured as four piston ring segments 16. The connecting rod 17 and the protrusion 18 are inserted into the mounting groove 19 of another piston ring segment 16. The protrusion 18 increases the tension on the inside when the connecting rod 17 is inserted, thereby assembling two piston ring segments 16 together, thus completing the assembly of the piston ring 14. During long-term use, due to the different stress points at different locations, the piston ring segment 16 with more damage can be pulled out of the piston ring 14, and the more locally damaged part can be replaced, thereby reducing the cost of use.

[0073] Example 7:

[0074] This embodiment provides a high wear-resistant piston, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0075] The protrusion 18 is hemispherical, and the connecting rod 17 is fixed vertically to the piston ring split 16.

[0076] As can be seen from this embodiment, the protrusion 18 is hemispherical and the connecting rod 17 is fixed on the piston ring split 16 vertically. By setting the protrusion 18 in the connecting rod 17, when the connecting rod 17 is inserted into the mounting groove 19, a tensioning effect is formed, thereby locking it in the mounting groove 19 for easy assembly.

[0077] Example 8:

[0078] This embodiment provides a high wear-resistant piston, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0079] The lower outer wall of the piston body 1 is provided with a heat dissipation ring groove 15, and a number of heat dissipation holes 20 are evenly arranged in a circle on the heat dissipation ring groove 15.

[0080] As can be seen from this embodiment, the heat dissipation ring groove 15 and heat dissipation hole 20 can effectively improve the heat dissipation performance of the piston and extend its service life.

[0081] Working principle: Connecting block 3 is threadedly fixed to threaded hole 2, and piston pin is installed on mounting hole 4 on connecting block 3 to ensure stable piston movement in cylinder. When lubricating oil needs to be added, remove cap 12, align the nozzle of external oil gun with injection pipe 8, lubricating oil enters oil storage chamber 5 through injection pipe 8, enters lubrication pipe 6 through oil storage chamber 5, is gradually injected into injection pipe 7 through lubrication pipe 6, flows into annular oil groove 9 through injection pipe 7, and then flows to multiple oil outlet holes 10 through annular oil groove 9. This can lubricate the piston pin installed in mounting hole 4, reduce wear, extend service life, and achieve piston pin lubrication without disassembling the piston pin. It is convenient to operate and has high working efficiency.

[0082] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high wear-resistant piston, characterized in that, include: Piston body (1), the sidewalls of the piston body (1) are symmetrically provided with threaded holes (2); Connecting block (3), the threaded hole (2) is threadedly fixedly connected to the connecting block (3), and the connecting block (3) has a mounting hole (4) for connecting the piston pin in the middle; A lubrication assembly is provided on the connecting block (3).

2. The high wear-resistant piston according to claim 1, characterized in that, The lubrication assembly includes: An oil storage chamber (5) is provided on the front side of the inner cavity of the connecting block (3); Lubrication pipe (6), the rear side of the oil storage cavity (5) is connected to the lubrication pipe (6); The injection tube (7) is connected to one end of the lubrication tube (6) away from the oil reservoir (5); Injection pipe (8), the front side of the oil storage chamber (5) is connected to the injection pipe (8); An annular oil groove (9) is provided in the inner cavity of the connecting block (3), and the annular oil groove (9) is connected to the end of the injection tube (7) away from the lubrication tube (6); Oil outlet (10): The inner wall of the connecting block (3) is provided with several oil outlets (10) evenly distributed around the circumference, and one end of the oil outlet (10) is connected to the mounting hole (4), and the other end is connected to the annular oil groove (9).

3. A high wear-resistant piston according to claim 2, characterized in that, The surface of the lubrication pipe (6) is connected to a one-way valve (11).

4. A high wear-resistant piston according to claim 3, characterized in that, The injection pipe (8) is provided with a cap (12) at the end away from the oil storage cavity (5), and a cross groove is opened on the surface of the end of the cap (12) away from the oil storage cavity (5).

5. A high wear-resistant piston according to claim 4, characterized in that, The upper outer wall of the piston body (1) is provided with a number of gas ring grooves (13), and a piston ring (14) is installed on each gas ring groove (13).

6. A high wear-resistant piston according to claim 5, characterized in that, The piston ring (14) includes: Piston ring split (16), the piston ring (14) is composed of several piston ring splits (16) spliced ​​together; Connecting rod (17), one side of the piston ring split (16) is fixedly connected to the connecting rod (17); The connecting rod (17) is fixedly connected to both ends of the protrusion (18); The piston ring split body (16) has an installation groove (19) on the other side, and the installation groove (19) is adapted to the connecting rod (17).

7. A high wear-resistant piston according to claim 6, characterized in that, The protrusion (18) is hemispherical, and the connecting rod (17) is fixed on the piston ring split (16) from top to bottom.

8. A high wear-resistant piston according to claim 7, characterized in that, The piston body (1) has a heat dissipation ring groove (15) on its lower outer wall, and a number of heat dissipation holes (20) are evenly arranged in a circle on the heat dissipation ring groove (15).

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