Wet brake piston

Abstract

The utility model discloses a wet type brake piston which comprises a sealing module and a heat dissipation module, and the sealing module comprises a piston body, an oil groove formed in one side of the piston body, two annular seams formed in the outer side of the piston body and the heat dissipation module. The heat dissipation module comprises an oil scraping disc movably arranged in the oil groove and two rectangular cavities formed in the piston body. According to the wet brake, the piston body is installed in the wet brake, then lubricating oil in the wet brake enters the oil groove and smears the outer portion of the piston body to enable the piston body to dissipate heat, and then when the piston body moves, friction force between the piston body and the wet brake enables the extrusion plate to swing in a reciprocating mode. After the oil scraping disc is indirectly extruded by the extrusion plate, the lubricating oil in the oil groove is scraped out of the piston body, so that the lubricating oil moves, carbon deposition on the inner wall of an oil cavity caused by cooling oil of the lubricating oil is prevented, and the heat dissipation effect of the piston is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pistons, in particular to a wet brake piston. Background Art

[0002] The full name of wet brake is closed multi-disc oil-cooled brake (abbreviated as wet brake). Wet brake can be divided into two categories according to different structural forms, one is non-independent type and the other is independent type.

[0003] When the brake is working, the piston is at a very high temperature, which can easily cause the piston to expand and deform, resulting in cylinder pulling. At the same time, the high temperature causes the lubricating oil in the inner cavity of the piston to dry out and deteriorate, not only making the lubricating oil unable to play a normal lubricating effect, but also causing carbon deposits on the inner wall of the oil cavity after cooling, making the heat dissipation effect of the piston even worse, affecting the normal use of the piston. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A wet brake piston comprises a sealing module and a heat dissipation module, wherein the sealing module comprises a piston body, an oil groove opened on one side of the piston body, and two annular slits opened on the outside of the piston body; and a heat dissipation module, wherein the heat dissipation module comprises an oil scraper plate movably arranged inside the oil groove, two rectangular cavities opened inside the piston body, and an extrusion plate movably installed inside the rectangular cavity.

[0007] By adopting the above technical solution, the piston body is installed inside the wet brake, and then the lubricating oil in the wet brake enters into the oil tank and is smeared on the outside of the piston body to dissipate heat from the piston body. Then, when the piston body moves, the friction between it and the wet brake causes the extrusion plate to swing back and forth, and then the oil scraper plate is indirectly squeezed by the extrusion plate to scrape the lubricating oil in the oil tank out of the piston body, so that the lubricating oil is mobilized, thereby preventing the lubricating oil cooling oil from causing carbon deposits on the inner wall of the oil chamber, thereby ensuring the heat dissipation effect of the piston.

[0008] In a preferred example, the utility model can be further configured as follows: the outer wall of the oil scraper plate fits the inner wall of the oil tank, and the outer edge of the oil scraper plate is set as an arc surface.

[0009] In a preferred example, the utility model can be further configured as follows: the two extrusion plates are vertically symmetrical about the oil tank, and both ends of the extrusion plates are set to be rounded.

[0010] In a preferred example, the present invention can be further configured as follows: the extruded plate is made of metal material.

[0011] In a preferred example, the utility model can be further configured as follows: a plurality of oil guide grooves are provided inside the piston body, and the plurality of oil guide grooves are arranged in a ring shape with equal spacing.

[0012] In a preferred example, the utility model can be further configured as follows: the oil guide groove is communicated with the inside of the oil groove, and the oil guide groove is located outside the oil scraper plate.

[0013] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0014] In the utility model, the piston body is installed inside the wet brake, and then the lubricating oil in the wet brake enters into the oil groove and is smeared on the outside of the piston body to dissipate heat of the piston body, and then when the piston body moves, the friction between it and the wet brake causes the extrusion plate to swing back and forth, and then the oil scraper plate is indirectly squeezed by the extrusion plate to scrape the lubricating oil in the oil groove out of the piston body, so that the lubricating oil is mobilized, thereby preventing the lubricating oil cooling oil from causing carbon deposits on the inner wall of the oil cavity, and ensuring the heat dissipation effect of the piston. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the sealing module of the utility model;

[0017] Figure 3 This is a schematic diagram of the heat dissipation module of the utility model.

[0018] Reference numerals:

[0019] 100, sealing module; 110, piston; 120, oil groove; 130, annular gap;

[0020] 200, heat dissipation module; 210, oil scraper plate; 220, rectangular cavity; 230, extrusion plate;

[0021] 300. Oil guide groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0023] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0024] A wet brake piston provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0025] Embodiment 1:

[0026] Combination Figure 1-3 As shown, the utility model provides a wet brake piston, comprising a sealing module 100 and a heat dissipation module 200, wherein the sealing module 100 comprises a piston body 110, an oil groove 120 provided on one side of the piston body 110, and two annular slits 130 provided on the outer side of the piston body 110;

[0027] The heat dissipation module 200 includes an oil scraper plate 210 movably disposed inside the oil groove 120 , two rectangular cavities 220 opened inside the piston body 110 , and an extrusion plate 230 movably installed inside the rectangular cavities 220 .

[0028] Furthermore, the outer wall of the scraper plate 210 fits the inner wall of the oil tank 120 , and the outer edge of the scraper plate 210 is set as an arc surface. With this shape design, the scraper plate 210 can move to scrape off the lubricating oil without damaging the inner wall of the oil tank 120 .

[0029] Furthermore, the extrusion plate 230 is made of metal material, and the extrusion plate 230 made of metal material is not easily deformed, thereby ensuring its service life.

[0030] Embodiment 2:

[0031] Combination Figure 3 As shown, based on the first embodiment, two extrusion plates 230 are vertically symmetrical about the oil groove 120, and both ends of the extrusion plates 230 are set as rounded corners. With this layout design, the oil scraper plate 210 can be pushed outward horizontally to achieve the purpose of scraping oil.

[0032] Embodiment three:

[0033] Combination Figure 1-3 As shown, in the above embodiment, a plurality of oil guide grooves 300 are opened inside the piston body 110, and the plurality of oil guide grooves 300 are arranged in a ring shape at equal intervals. The oil guide grooves 300 are provided so that the lubricating oil entering the oil groove 120 can easily leave the interior of the piston body 110.

[0034] Specifically, the oil guide groove 300 is connected to the inside of the oil groove 120 , and the oil guide groove 300 is located outside the oil scraper plate 210 . With this structural design, the oil guide groove 300 guides the lubricating oil to flow out, effectively preventing the lubricating oil from accumulating inside the piston body 110 .

[0035] The working principle and use process of the utility model are as follows: when the device is put into actual use, the piston body 110 is installed inside the wet brake, and then the lubricating oil in the wet brake enters into the oil groove 120 and is smeared on the outside of the piston body 110 to dissipate heat from the piston body 110, and then when the piston body 110 moves, the friction between it and the wet brake causes the extrusion plate 230 to swing back and forth, and then the oil scraper plate 210 is indirectly squeezed by the extrusion plate 230 to scrape the lubricating oil in the oil groove 120 out of the piston body 110, so that the lubricating oil is mobilized, thereby preventing the lubricating oil cooling oil from causing carbon deposits on the inner wall of the oil cavity, and ensuring the heat dissipation effect of the piston.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wet brake piston, characterized in that: include: A sealing module (100), the sealing module (100) comprising a piston body (110), an oil groove (120) provided on one side of the piston body (110), and two annular slits (130) provided on the outside of the piston body (110); A heat dissipation module (200) comprising an oil scraper plate (210) movably disposed inside the oil groove (120), two rectangular cavities (220) opened inside the piston body (110), and an extrusion plate (230) movably mounted inside the rectangular cavities (220).

2. A wet brake piston according to claim 1, characterized in that: The outer wall of the oil scraper plate (210) is in contact with the inner wall of the oil groove (120), and the outer edge of the oil scraper plate (210) is configured as a curved surface.

3. A wet brake piston according to claim 1, characterized in that: The two extrusion plates (230) are vertically symmetrical with respect to the oil groove (120), and both ends of the extrusion plates (230) are arranged with rounded corners.

4. A wet brake piston according to claim 1, characterized in that: The extrusion plate (230) is made of metal material.

5. A wet brake piston according to claim 1, characterized in that: A plurality of oil guide grooves (300) are provided inside the piston body (110), and the plurality of oil guide grooves (300) are arranged at equal intervals and in a ring shape.

6. A wet brake piston according to claim 5, characterized in that: The oil guide groove (300) is in communication with the interior of the oil groove (120), and the oil guide groove (300) is located outside the oil scraper plate (210).

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