Low-resistance automobile steering ball pin dust cover

Abstract

The utility model discloses a low-resistance automobile steering ball pin dust cover which comprises a dust cover assembly used for an automobile steering ball pin, openings are formed in the two ends of the dust cover assembly, and buffer covers are arranged on the outer sides of the openings in the two ends. The dustproof cover assembly comprises an outer sealing layer and an inner sealing layer, the outer sealing layer and the inner sealing layer jointly wrap the internal steering ball pin, and sealing pipes are arranged on the inner sides of the openings in the two ends. Double guarantees are provided through a double-layer sealing structure, and impurities can be further prevented from entering the steering ball pin; the sealing pipe can adapt to vibration in the driving process, the sealing state is kept all the time, it is ensured that the steering ball pin is located in a relatively clean environment, and abrasion caused by entering of impurities is reduced; the buffering cover can reduce friction between vibration of the internal ball pin and the dust cover in the vehicle running process, and therefore the service life of the dust cover is prolonged; the oil storage grooves can reduce friction between wrinkles of the dust cover, and therefore steering resistance is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a low-resistance automobile steering ball pin dust cover. BACKGROUND

[0002] Under the background of current energy shortage and increasingly stringent environmental protection requirements, it is crucial to improve the energy economy of the automobile. The resistance of the steering system is a factor affecting the overall energy consumption of the automobile. According to research, the energy consumption can be reduced by a certain amount when the resistance of the steering system is reduced by a certain percentage. Low-resistance steering ball pins can reduce energy loss during steering, thereby helping to improve the energy economy of the automobile.

[0003] However, during the driving of the automobile, dust may enter the ball pin, and the tiny particles in the dust may act as an abrasive. During the relative movement of the ball head and the socket of the ball pin, these particles will continuously rub the surface of the ball head and the socket, affecting the accuracy of steering and further accelerating wear.

[0004] Therefore, it is necessary to invent a low-resistance automobile steering ball pin dust cover to solve the above problems. UTILITY MODEL CONTENTS

[0005] (I) Utility model purpose

[0006] To solve the technical problems existing in the background art, the utility model provides a low-resistance automobile steering ball pin dust cover that can protect the ball pin and reduce wear.

[0007] (II) Technical scheme

[0008] In order to achieve the above purpose, the utility model provides the following technical scheme: a low-resistance automobile steering ball pin dust cover, comprising a dust cover assembly for an automobile steering ball pin, the dust cover assembly is provided with an opening at both ends, and the outer side of the opening at both ends is provided with a buffer cover;

[0009] The dust cover assembly comprises an outer sealing layer and an inner sealing layer, the outer sealing layer and the inner sealing layer jointly wrap the internal steering ball pin, and the inner side of the opening at both ends is provided with a sealing tube, the outer sealing layer and the inner sealing layer are the same shape, and both are crumpled.

[0010] Preferably, a plurality of oil storage grooves are arranged between the crumples of the outer sealing layer, and the plurality of oil storage grooves are spirally arranged between the crumples on the outer side of the outer sealing layer.

[0011] Preferably, the outer sealing layer is a wear-resistant rubber layer, the inner sealing layer is a polytetrafluoroethylene layer, and the outer sealing layer and the inner sealing layer are filled with lubricating grease.

[0012] Preferably, the sealing tube is installed inside the opening at both ends, that is, inside the dust cover assembly, and is tightly attached to the opening position.

[0013] Preferably, the buffer cover is in the form of a spring as a whole, and is fixed outside the opening with a mounting hole in the middle consistent with the size of the opening.

[0014] Preferably, the wrinkle angle of the outer sealing layer and the inner sealing layer is greater than 45 degrees.

[0015] Compared with the prior art, the beneficial effects of the above technical scheme of the utility model are:

[0016] 1. The double-layer sealing structure provides double protection, which can further prevent impurities from entering the steering ball pin, and the polytetrafluoroethylene has extremely low surface energy, which makes it naturally repel dust and moisture, effectively improving the sealing performance of the dust cover as a whole.

[0017] 2. The sealing tube in the utility model can adapt to vibration during driving, always maintain a sealed state, ensure that the steering ball pin is in a relatively clean environment, and reduce wear caused by impurities entering;

[0018] 3. The buffer cover in the utility model can reduce the friction between the internal ball pin and the dust cover during vehicle driving, thereby prolonging the service life of the dust cover.

[0019] 4. The oil storage groove in the utility model can reduce the friction between the folds of the dust cover, thereby reducing the steering resistance, and further prolonging the service life of the dust cover. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0021] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Fig. 2 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0023] Explanation of reference signs:

[0024] 1. Dust cover assembly; 11. Opening; 12. Outer sealing layer; 13. Inner sealing layer; 14. Oil storage groove; 2. Buffer cover; 21. Mounting hole; 3. Sealing tube. DETAILED DESCRIPTION

[0025] In order for the skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with the drawings.

[0026] The utility model provides a low resistance automobile steering ball pin dust cover Figs. 1-2 As shown in a low resistance automobile steering ball pin dust cover, including dust cover subassembly 1 for automobile steering ball pin, dust cover subassembly 1 both ends are equipped with opening 11, and both ends opening 11 outside are equipped with buffer cover 2;

[0027] Specifically, dust cover subassembly 1 includes outer sealing layer 12 and inner sealing layer 13, and the outer sealing layer 12 and the inner sealing layer 13 are wrapped together, and both ends of the opening 11 are equipped with a sealing tube 3, and the outer sealing layer 12 and the inner sealing layer 13 are of the same shape and are both of the pleated shape.

[0028] In this embodiment, the inner sealing layer 13 (polytetrafluoroethylene layer) is wrapped around the automobile steering ball pin. Since polytetrafluoroethylene has good flexibility and low friction coefficient, it can closely adhere to the surface of the ball pin during wrapping, reducing the obstruction to the movement of the ball pin.

[0029] Specifically, the outer sealing layer 12 (wear-resistant rubber layer) is wrapped around the ball pin that has been wrapped with the inner sealing layer 13, so that the outer sealing layer 12 and the inner sealing layer 13 tightly wrap the ball pin together. During the wrapping process, lubricating grease is uniformly filled between the outer sealing layer 12 and the inner sealing layer 13. The filling of lubricating grease can be done by a special grease injection equipment to ensure that the filling amount is appropriate and uniformly distributed.

[0030] Specifically, a plurality of oil storage grooves 14 are arranged between the pleats of the outer sealing layer 12, and the plurality of oil storage grooves 14 are spirally arranged between the pleats on the outer side of the outer sealing layer 12.

[0031] Specifically, the outer sealing layer 12 is a wear-resistant rubber layer, the inner sealing layer 13 is a polytetrafluoroethylene layer, and lubricating grease is filled between the outer sealing layer 12 and the inner sealing layer 13.

[0032] In this embodiment, when the outer sealing layer 12 and the inner sealing layer 13 are made, they are made into a pleated shape. The pleats can be made by mold forming to ensure that the pleats are regular and uniform in shape. And the pleat angle of the outer sealing layer 12 and the inner sealing layer 13 should be greater than 45 degrees, which should be accurately set in the mold design.

[0033] Specifically, a plurality of spirally arranged oil storage grooves 14 are manufactured between the pleats of the outer sealing layer 12 by a special processing technology. Laser engraving or mold forming can be used to make the oil storage grooves 14.

[0034] Specifically, the sealing tube 3 is installed on the inner side of the both ends opening 11, i.e. inside the dust cover subassembly 1, and tightly adheres to the position of the opening 11.

[0035] In this embodiment, the sealing tube 3 is installed on the inner side of the opening 11 at both ends of the dust cover assembly 1, that is, inside the dust cover assembly 1 and close to the opening 11. During installation, a special clamp can be used to fix the sealing tube 3 in the correct position, ensuring that the sealing tube 3 closely fits the edge of the opening 11 and preventing the occurrence of a loose seal during use.

[0036] Specifically, the buffer cover 2 is in the shape of a spring as a whole and is fixed outside the opening, with a mounting hole 21 in the middle that is consistent in size with the opening 11.

[0037] In this embodiment, the buffer cover 2 in the shape of a spring is fixed outside the opening 11 at both ends of the dust cover assembly 1. During fixing, the mounting hole 21 in the middle of the buffer cover 2 is ensured to be consistent in size with the opening 11 and completely aligned, and then a suitable fixing part is used to firmly fix the buffer cover 2 outside the opening 11.

[0038] Specifically, the wrinkle angles of the outer sealing layer 12 and the inner sealing layer 13 are greater than 45 degrees.

[0039] In this embodiment, during the steering operation of the vehicle, the inner sealing layer 13 is a polytetrafluoroethylene layer, and its extremely low friction coefficient makes the steering ball pin receive very small friction when moving in the dust cover. Compared with the traditional rubber sealing layer, the required operating force during steering is significantly reduced, and the driver can more easily complete the steering operation, improving the driving comfort.

[0040] In this embodiment, the lubricating grease in the oil storage groove 14 between the wrinkles of the outer sealing layer 12 continuously provides lubrication for the contact between the outer sealing layer 12 and the surrounding parts during steering, further reducing the steering resistance. Moreover, the wrinkle angles of the outer sealing layer 12 and the inner sealing layer 13 are greater than 45 degrees, and during the steering movement of the ball pin, the wrinkles can deform more smoothly without generating large resistance, making the entire steering process smoother.

[0041] Specifically, this low-resistance design makes the steering ball pin respond faster, enabling it to steer more timely according to the driver's operation. In the case of emergency avoidance of the vehicle or driving in a narrow curve, the steering system can quickly respond, improving the maneuverability of the vehicle.

[0042] In this embodiment, the double-layer sealing structure composed of the outer sealing layer 12 and the inner sealing layer 13, as well as the sealing tube 3 on the inner side of the opening 11, provides reliable sealing for the steering ball pin. During the long-term use of the vehicle, whether driving on roads with more dust or in a humid environment, impurities such as dust and water can be effectively prevented from entering the inside of the steering ball pin.

[0043] Specifically, when the vehicle is driving in a dust-intensive area such as a construction site, the outer sealing layer 12 first blocks most of the dust, and even if a small amount of dust breaks through the outer sealing layer 12, the inner sealing layer 13 and the sealing tube 3 can further prevent dust from entering the inside of the ball pin, protecting the ball pin from wear and corrosion.

[0044] In this embodiment, during vehicle driving, due to the auxiliary protection of the buffer cover 2 to the opening 11, the sealing structure can remain stable even under bumpy, jarring and other working conditions. When the vehicle passes through rugged mountain roads, the severe vibration of the vehicle body will not damage the sealing structure of the dust cover, ensuring that the steering ball pin is always in a good sealed environment.

[0045] Specifically, the polytetrafluoroethylene material of the inner sealing layer 13 has excellent chemical stability and corrosion resistance and is not easily eroded by external chemicals. The outer sealing layer 12 is a wear-resistant rubber layer, and its wear resistance is improved under the protection of the lubricating grease.

[0046] Specifically, during the entire service life of the automobile, this dust cover can reduce the failure of the steering ball pin caused by impurities entering and corrosion, wear and tear, etc., prolong the service life of the steering ball pin, and reduce the maintenance cost of the vehicle.

[0047] In this embodiment, the spring type structure of the buffer cover 2 can effectively buffer the impact of the dust cover from the outside. When the vehicle is slightly collided or impacted by stones and other foreign matters during driving, the buffer cover 2 absorbs the impact energy, protecting the dust cover assembly 1 from being damaged. For example, when the vehicle is driving on unpaved roads, the buffer cover 2 can prevent damage caused by the impact of flying stones on the dust cover, improving the overall durability of the dust cover.

[0048] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without deviating from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A low drag automotive steering ball stud dust shield characterized by: The application relates to a dust cover assembly (1) for a steering ball pin of an automobile, which is provided with an opening (11) at each end, and a buffer cover (2) is arranged outside the opening (11) at each end. The dust cover assembly (1) comprises an outer sealing layer (12) and an inner sealing layer (13), the outer sealing layer (12) and the inner sealing layer (13) jointly wrap an internal steering ball pin, and a sealing tube (3) is arranged inside the opening (11) at each end, the outer sealing layer (12) and the inner sealing layer (13) are of the same shape and are both of a pleat shape. A plurality of oil storage grooves (14) are arranged between the pleats of the outer sealing layer (12), and the plurality of oil storage grooves (14) are spirally arranged between the pleats outside the outer sealing layer (12). The outer sealing layer (12) is a wear-resistant rubber layer, the inner sealing layer (13) is a polytetrafluoroethylene layer, and grease is filled between the outer sealing layer (12) and the inner sealing layer (13).

2. A low drag automotive steering ball stud dust cover according to claim 1, characterized in that: The sealing tube (3) is arranged inside the opening (11) at each end, that is, inside the dust cover assembly (1), and is tightly arranged at the position of the opening (11).

3. A low drag automotive steering ball stud dust cover according to claim 1, characterized in that: The buffer cover (2) is in the shape of a spring as a whole and is fixed outside the opening, and a mounting hole (21) with the same size as the opening (11) is left in the middle.

4. A low drag automotive steering ball stud dust cover in accordance with claim 1 wherein: The pleat angle of the outer sealing layer (12) and the inner sealing layer (13) is greater than 45 degrees.

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