Aluminum alloy piston with high heat dissipation performance

Abstract

The utility model discloses an aluminum alloy piston with strong heat dissipation, which relates to the technical field of aluminum alloy pistons, and comprises a piston main body, slots are uniformly distributed on the upper edge of the surface of the piston main body, a reinforced piston cover is sleeved above the piston main body, a plug board is fixedly arranged below the surface of the reinforced piston cover, and the plug board is fixedly connected with the plug board. A sinking groove is formed in the upper end of the piston body, and a reinforcing plate is arranged in the sinking groove. Compared with an existing common aluminum alloy piston, according to the aluminum alloy piston with the high heat dissipation performance, the inserting plate is inserted into the inserting groove, the reinforcing piston cover is arranged on the upper surface of the piston main body in a sleeving mode and wraps the periphery of the piston main body, meanwhile, the reinforcing plate is fixed in the sinking groove, and therefore the upper end of the whole piston main body is integrally wrapped in cooperation with the reinforcing piston cover; the overall strength of the piston body is enhanced in the use process, so that the strength of the piston body in long-time high-temperature movement in an air cylinder is improved, and the service life of the piston body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy pistons, in particular to an aluminum alloy piston with strong heat dissipation. Background Art

[0002] The piston is a component that reciprocates in the cylinder block of a car engine. The basic structure of a piston can be divided into the top, head and skirt. The top of the piston is the main part of the combustion chamber, and its shape is related to the type of combustion chamber selected. Gasoline engines mostly use flat-top pistons, which have the advantage of a small heat absorption area. Diesel engine pistons often have various pits on the top, and their specific shape, position and size must be adapted to the requirements of the diesel engine's mixture formation and combustion.

[0003] For example, the public document with application number 202322522785.6 discloses a lightweight aluminum alloy piston. The fins provided in this utility model can increase the contact area between the piston skirt and the air, thereby quickly dissipating heat. At the same time, the heat dissipation holes provided can speed up the air circulation speed, greatly improving the heat dissipation efficiency, and avoiding the piston from getting stuck due to thermal expansion. Then, the first steel sheet and the second steel sheet provided can greatly reduce the thermal expansion of the aluminum alloy skirt, which can further avoid the piston from getting stuck due to thermal expansion, and the anti-thermal expansion effect is excellent. However, when the aluminum alloy piston is working, the piston body works directly, and it contacts the detonating gasoline, and the temperature rises instantaneously. The piston will age during high-intensity working operation, which is not conducive to the long-term use of the piston.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an aluminum alloy piston with strong heat dissipation is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an aluminum alloy piston with strong heat dissipation performance to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an aluminum alloy piston with strong heat dissipation, comprising a piston body, slots evenly distributed on the upper edge of the surface of the piston body, a reinforced piston cover sleeved on the upper part of the piston body, a plug-in plate fixedly installed below the surface of the reinforced piston cover, a recessed groove formed at the upper end of the piston body, and a reinforcement plate arranged inside the recessed groove.

[0007] Preferably, the shape of the slot matches that of the plug board, and the slot and the plug board are arranged in the same number.

[0008] Preferably, a threaded hole is formed through the slot on one side close to the interior of the piston body, and a threaded hole is also formed on the inner side of the surface of the plug-in plate. The plug-in plate is fixed with bolts after being inserted into the slot.

[0009] Preferably, a threaded hole is provided through the middle of the sink, and a threaded hole is also provided in the middle of the bottom end of the reinforcement plate, and the reinforcement plate is fixed to the inside of the sink by bolts.

[0010] Preferably, through cavities are provided around the surface of the piston body, and five through cavities are provided around the surface of the piston body.

[0011] Preferably, a heat-conducting ring plate is fixedly installed on the inner surface of the piston body, and four heat-conducting ring plates are evenly distributed and fixedly arranged above and below.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model comprises a slot, a reinforced piston cover, a plug-in plate, a sink groove, and a reinforcement plate. The plug-in plate is inserted into the slot, and the reinforced piston cover is sleeved over the upper surface of the piston body, covering the entire periphery. The reinforcement plate is fixed in the sink groove, thereby achieving overall covering of the upper end of the entire piston body. This strengthens the overall strength of the piston body during use, thereby improving the strength of the piston body during long-term high-temperature operation in the cylinder and extending the service life of the piston body.

[0014] 2. The utility model arranges a through cavity and a heat-conducting ring plate. The through cavity can be used to allow the heat absorbed by the piston body to be quickly exchanged with the air in the middle cavity during operation. The piston body itself can quickly guide its own heat to dissipate by using the heat-conducting ring plate, thereby greatly improving the overall heat exchange and heat dissipation efficiency of the piston body and avoiding excessive temperature of the piston body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the piston main body of the utility model.

[0018] In the figure: 1. Piston body; 2. Slot; 3. Reinforced piston cover; 4. Plug-in plate; 5. Sink; 6. Reinforcement plate; 7. Through cavity; 8. Heat-conducting ring plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0020] like Figure 1-Figure 3 As shown, an aluminum alloy piston with strong heat dissipation performance includes a piston body 1, slots 2 are evenly distributed on the upper edge of the surface of the piston body 1, a reinforced piston cover 3 is sleeved on the upper part of the piston body 1, a plug-in plate 4 is fixedly installed under the surface of the reinforced piston cover 3, a sink groove 5 is opened at the upper end of the piston body 1, and a reinforcement plate 6 is arranged inside the sink groove 5.

[0021] By adopting the above technical solution, the plug-in plate 4 is inserted into the slot 2, the reinforced piston cover 3 is sleeved on the upper surface of the piston body 1, covering it on all sides, and the reinforcement plate 6 is fixed in the sink groove 5, thereby achieving the overall covering of the upper end of the entire piston body 1, strengthening the overall strength of the piston body 1 during use, and improving the strength of the piston body 1 during long-term high-temperature movement in the cylinder.

[0022] Furthermore, the shape of the slot 2 matches that of the plug board 4 , and the slot 2 and the plug board 4 are arranged in the same number.

[0023] By adopting the above technical solution, it is ensured that the plug-in board 4 can be correspondingly inserted into each slot 2, so that the reinforced piston cover 3 is connected to the piston body 1.

[0024] Furthermore, a threaded hole is formed through the slot 2 on one side close to the interior of the piston body 1 , and a threaded hole is also formed on the inner side of the surface of the plug-in board 4 . The plug-in board 4 is fixed with bolts after being inserted into the slot 2 .

[0025] By adopting the above technical solution, the connection between the reinforced piston cover 3 and the piston body 1 is made more stable.

[0026] Furthermore, a threaded hole is provided through the middle of the sink 5 , and a threaded hole is also provided in the middle of the bottom end of the reinforcement plate 6 . The reinforcement plate 6 is fixed to the inside of the sink 5 by bolts.

[0027] By adopting the above technical solution, the reinforcing plate 6 can be stably assembled on the upper end of the piston body 1 for protection, and is easy to disassemble and replace.

[0028] Furthermore, through cavities 7 are provided around the surface of the piston body 1 , and five through cavities 7 are provided around the surface of the piston body 1 .

[0029] By adopting the above technical solution, the through cavity 7 can be used to allow the piston body 1 to quickly exchange heat with the air in the middle cavity while working by absorbing heat.

[0030] Furthermore, a heat-conducting ring plate 8 is fixedly installed on the inner surface of the piston body 1 , and four heat-conducting ring plates 8 are evenly distributed and fixedly arranged above and below.

[0031] By adopting the above technical solution, the piston body 1 can quickly guide its own heat to dissipate by using the heat-conducting ring plate 8, thereby greatly improving the overall heat exchange and heat dissipation efficiency of the piston body 1 and avoiding excessive temperature of the piston body 1.

[0032] Working principle: When using the aluminum alloy piston with strong heat dissipation, first, use the plug-in plate 4 to insert the slot 2, and put the reinforced piston cover 3 on the upper surface of the piston body 1, and then use the bolts to screw and lock it so that the reinforced piston cover 3 is fixedly covered around the upper end of the piston body 1, and the reinforcement plate 6 is fixed in the sink groove 5, thereby achieving the overall covering of the upper end of the entire piston body 1. All kinds of damage suffered by the piston body 1 during operation are borne by the reinforced piston cover 3 and the reinforcement plate 6. When the piston body 1 is working, the heat generated can be quickly exchanged with the air in the middle cavity by using the through cavity 7. The piston body 1 itself can quickly guide its own heat to dissipate by using the heat-conducting ring plate 8, thereby greatly improving the overall heat exchange and heat dissipation efficiency of the piston body 1 and avoiding the piston body 1 from overheating. This is the working principle of the aluminum alloy piston with strong heat dissipation.

Claims

1. An aluminum alloy piston with strong heat dissipation, comprising a piston body (1), characterized in that: Slots (2) are evenly distributed on the upper edge of the surface of the piston body (1), a reinforced piston cover (3) is sleeved on the upper part of the piston body (1), a plug-in plate (4) is fixedly installed below the surface of the reinforced piston cover (3), a sink groove (5) is opened at the upper end of the piston body (1), and a reinforcement plate (6) is arranged inside the sink groove (5).

2. The aluminum alloy piston with strong heat dissipation according to claim 1, characterized in that: The shape of the slot (2) matches that of the plug board (4), and the slot (2) and the plug board (4) are arranged in the same number.

3. The aluminum alloy piston with strong heat dissipation according to claim 1, characterized in that: A threaded hole is provided through the slot (2) on one side close to the interior of the piston body (1), and a threaded hole is also provided on the inner side of the surface of the plug-in plate (4). The plug-in plate (4) is fixed with bolts after being inserted into the slot (2).

4. The aluminum alloy piston with strong heat dissipation according to claim 1, characterized in that: A threaded hole is provided through the middle of the sink trough (5), and a threaded hole is also provided in the middle of the bottom end of the reinforcement plate (6). The reinforcement plate (6) is fixed inside the sink trough (5) by means of bolts.

5. The aluminum alloy piston with strong heat dissipation according to claim 1, characterized in that: Through cavities (7) are provided around the surface of the piston body (1), and five through cavities (7) are provided around the surface of the piston body (1).

6. The aluminum alloy piston with strong heat dissipation according to claim 1, characterized in that: A heat-conducting ring plate (8) is fixedly mounted on the inner surface of the piston body (1), and four heat-conducting ring plates (8) are evenly distributed and fixedly arranged above and below.

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