Hub end cover

Abstract

The utility model discloses a hub end cover which comprises an end shell, a cover plate and a pressing ring, an installation hole is formed in the cover plate, a rubber plug is installed at the installation hole, a containing cavity and an air duct are formed in the rubber plug, the air duct is communicated with the containing cavity, a magnet block is plugged in the containing cavity, and the cover plate is pressed and fixed to the end shell through the pressing ring. And the pressing ring is fixedly connected with the end part shell. The inner cavity of the hub can be communicated with the outside through the air duct on the rubber plug, and internal and external pressure balance is achieved. The magnet block is arranged in the containing cavity, oil gas leakage can be effectively prevented, and meanwhile iron-containing impurities generated by running-in in the hub unit can be attracted. The hub end cover not only can balance the pressure inside and outside the hub unit and prevent internal lubricating oil from seeping out, but also can adsorb iron-containing impurities generated by running-in and protect the hub.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a wheel hub end cover. Background Art

[0002] Automobiles have become an indispensable and important tool for modern human activities. Especially in the current era of rapid development of logistics, the market demand for commercial vehicles is increasing, which has brought about fierce market competition. Therefore, the reliability of automobile parts is particularly important in applications. As the main component of the vehicle chassis system, the reliability of the wheel is the first priority, and the wheel is one of the important components of the car, which is related to driving safety and the safety of people's lives. As a key part of the wheel assembly, the wheel end cover rotates with the wheel. Its failure rate has always been high. There are many cases of seal failure and lubricating oil leakage, resulting in a high oil leakage failure rate, which affects the normal operation and service life of the wheel hub. Utility Model Content

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a hub end cover, which can not only balance the pressure inside and outside the hub unit and prevent the internal lubricating oil from leaking out, but also absorb the iron-containing impurities generated by running-in to protect the hub.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A wheel hub end cover, characterized in that it includes an end shell, a cover plate and a pressure ring, the cover plate is provided with a mounting hole, a rubber plug is installed at the mounting hole, the rubber plug is provided with a accommodating cavity and an air duct, the air duct is connected to the accommodating cavity, a magnet block is plugged in the accommodating cavity, the pressure ring presses the cover plate to fix it on the end shell, and the pressure ring is fixedly connected to the end shell.

[0006] Preferably, the bottom opening of the accommodating cavity comprises a central circular hole and a rectangular hole, and a plurality of the rectangular holes are circumferentially arrayed around the central circular hole and are connected to the central circular hole.

[0007] Preferably, the air passage is a circular hole.

[0008] Preferably, the rubber plug is fixedly installed in the mounting hole by means of interference fit.

[0009] Preferably, an outer end of the mounting hole is provided with an oblique chamfer.

[0010] Preferably, the cover plate is made of a transparent material to form an observation window, and an oil level mark is provided on the cover plate.

[0011] Preferably, the pressure ring is fixedly connected to the end shell by bolts.

[0012] Preferably, a sealing gasket is provided between the pressure ring and the end shell.

[0013] Preferably, the end shell includes a cylindrical body portion, a boss is provided on the cylindrical body portion, a sealing groove is opened on the cylindrical body portion, the sealing groove is close to the boss, and a sealing ring is installed in the sealing groove.

[0014] Preferably, an oil filling port is provided on the end shell, and a plug is fixed at the oil filling port.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are:

[0016] The hub end cover of the utility model includes an end shell, a cover plate and a pressure ring. The cover plate is provided with a mounting hole, a rubber plug is installed at the mounting hole, a receiving cavity and an air duct are provided on the rubber plug, the air duct is connected to the receiving cavity, a magnet block is plugged in the receiving cavity, the cover plate is pressed and fixed on the end shell by the pressure ring, and the pressure ring is fixedly connected to the end shell. The air duct on the rubber plug can realize the connection between the inner cavity of the hub and the outside, and realize the balance of internal and external pressures. When the temperature inside the hub rises, the temperature inside the cavity rises and the pressure increases. At this time, the gas inside the hub unit is discharged to the outside through the receiving cavity and the air duct. During the process of discharging the gas, a small amount of oil and gas are carried in the gas. The magnet block is arranged in the receiving cavity to effectively prevent the leakage of oil and gas, and it can also absorb the iron-containing impurities generated by the running-in inside the hub unit.

[0017] In summary, the wheel hub end cover of the utility model can not only balance the pressure inside and outside the wheel hub unit and prevent the internal lubricating oil from leaking out, but also absorb the iron-containing impurities generated by running-in and protect the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the wheel hub end cover of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the wheel hub end cover of the utility model from another perspective;

[0020] Figure 3 It is a cross-sectional schematic diagram of the wheel hub end cover of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of installing the rubber plug on the cover plate;

[0022] Figure 5 yes Figure 4 A cross-sectional schematic diagram of

[0023] In the figure: 1. end shell; 101. cylinder body; 102. boss; 103. sealing ring; 104. oil filling port; 105. plug; 2. cover plate; 201. mounting hole; 2011. bevel chamfer; 3. pressure ring; 4. rubber plug; 401. accommodating cavity; 4011. middle circular hole; 4012. rectangular hole; 402. air duct; 5. magnet block; 6. sealing gasket. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the utility model, but it is not intended to limit the scope of protection of the claims attached to the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] In addition, although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0027] The utility model discloses Figures 1 to 3 The hub end cover shown includes an end shell 1, a cover plate 2 and a pressure ring 3. The cover plate 2 is provided with a mounting hole 201, a rubber plug 4 is installed at the mounting hole 201, the rubber plug 4 is provided with a accommodating cavity 401 and an air duct 402, the air duct 402 is connected to the accommodating cavity 401, a magnet block 5 is plugged in the accommodating cavity 401, the pressure ring 3 presses and fixes the cover plate 2 on the end shell 1, and the pressure ring 3 is fixedly connected to the end shell 1.

[0028] like Figures 3 to 5As shown, the rubber plug 4 is provided with an air passage 402 to connect the inner cavity of the wheel hub with the outside world, and achieve internal and external pressure balance. When the temperature inside the wheel hub rises, the temperature inside the cavity rises and the pressure increases. At this time, the gas inside the wheel hub unit is discharged to the outside through the accommodating cavity 401 and the air passage 402. During the process of discharging the gas, a small amount of oil and gas is carried in the gas. The magnet block 5 is arranged in the accommodating cavity 401 of the rubber plug 4 to effectively prevent the leakage of oil and gas, and can also absorb the iron-containing impurities generated by the running-in inside the wheel hub unit.

[0029] In some embodiments, Figure 1 and Figure 5 As shown, the air passage 402 is a round hole for easy processing.

[0030] In some embodiments, Figure 4 As shown, the bottom opening of the accommodating cavity 401 includes a central circular hole 4011 and a rectangular hole 4012, and a plurality of rectangular holes 4012 are arranged circumferentially around the central circular hole 4011 and communicate with the central circular hole. This structure of the opening facilitates the insertion of the magnet block 5 into the accommodating cavity 401 and prevents the magnet block 5 from escaping from the bottom opening of the accommodating cavity 401.

[0031] The rubber plug 4 of the present invention is fixedly installed in the mounting hole 201 by means of interference fit, and the rubber plug 4 is usually a rubber plug. Figure 5 As shown, the outer end of the mounting hole 201 is provided with an oblique chamfer 2011 to facilitate the rubber plug 4 to be inserted into the mounting hole 201 to cooperate with it, and the inner end of the mounting hole 201 retains the original sharp corner to prevent the rubber plug from falling out of the mounting hole 201.

[0032] The cover plate 2 is made of transparent material, preferably high temperature resistant transparent nylon material, to form an observation window, and an oil level mark is provided on the cover plate 2. Through the observation window, the internal lubricating medium can be directly observed from the outside, and the oil level in the cavity can be checked, so that the owner can understand the vehicle operation status in time.

[0033] like Figure 1 and Figure 3 As shown, the pressure ring 3 is fixedly connected to the end housing 1 by bolts, which is convenient for installation and removal. A sealing gasket 6 is arranged between the pressure ring 3 and the end housing 1 to prevent oil leakage.

[0034] The end shell 1 comprises a barrel 101, a boss 102 is provided on the barrel 101, a sealing groove is provided on the barrel 101, the sealing groove is close to the boss 102, and a sealing ring 103 is installed in the sealing groove. An oil filling port 104 is provided on the end shell 1, and a plug 105 is fixed at the oil filling port.

[0035] The wheel hub end cover of the utility model can realize the connection between the inner cavity of the wheel hub and the outside, has the function of preventing oil leakage and exhaust, realizes the balance of internal and external pressures, prevents the internal lubricating oil from leaking out, and can also absorb the iron-containing impurities generated by running-in, protects the wheel hub, ensures the normal operation of the wheel hub, and prolongs the service life of the wheel hub.

[0036] The technical solution of the utility model is described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Those skilled in the art should understand that various changes made thereto in form and details fall within the protection scope defined by the claims of the utility model.

Claims

1. A hub end cover, characterized in that: It includes an end shell, a cover plate and a pressure ring. The cover plate is provided with a mounting hole, a rubber plug is installed at the mounting hole, a receiving cavity and an air duct are provided on the rubber plug, the air duct is connected with the receiving cavity, a magnet block is plugged in the receiving cavity, the pressure ring presses the cover plate to fix it on the end shell, and the pressure ring is fixedly connected to the end shell.

2. The hub end cover according to claim 1, characterized in that: The bottom opening of the accommodating cavity comprises a central circular hole and a rectangular hole, and a plurality of the rectangular holes are arranged circumferentially around the central circular hole and are connected to the central circular hole.

3. The hub end cover according to claim 1, characterized in that: The air passage is a circular hole.

4. The hub end cover according to claim 1, characterized in that: The rubber plug is fixedly installed in the installation hole by means of interference fit.

5. The hub cover according to claim 1, characterized in that: The outer end of the mounting hole is provided with an oblique chamfer.

6. The hub end cover according to claim 1, characterized in that: The cover plate is made of a transparent material to form an observation window, and an oil level mark is arranged on the cover plate.

7. The hub end cover according to claim 1, characterized in that: The pressure ring is fixedly connected to the end shell by bolts.

8. The hub end cover according to claim 1, characterized in that: A sealing gasket is arranged between the pressure ring and the end shell.

9. The hub end cover according to claim 1, characterized in that: The end shell comprises a cylindrical body portion, a boss is arranged on the cylindrical body portion, a sealing groove is opened on the cylindrical body portion, the sealing groove is close to the boss, and a sealing ring is installed in the sealing groove.

10. The hub end cover according to claim 1, characterized in that: An oil filling port is provided on the end shell, and a plug is fixed at the oil filling port.

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