Front axle master pin

Abstract

The utility model relates to the technical field of vehicle parts, in particular to a front axle master pin which comprises a master pin body, a first through hole is formed in the master pin body, the first through hole and the master pin body are coaxial, a lining and a blanking cap are arranged at the two ends of the master pin body, a boss is arranged on the outer side of the blanking cap, and the first through hole and the first through hole are coaxial. The boss is provided with a second through hole communicated with the first through hole, and the side portion of the boss is connected with a grease fitting. By arranging the boss on the outer side of the blanking cap, the grease fitting can be installed on the side portion of the boss, so that the grease fitting and the boss are convenient to assemble, meanwhile, after the grease fitting is located on the side portion of the boss, grease can be conveniently injected into the master pin through the grease fitting in the later period, and assembling and later maintenance of the front axle master pin are easier. The device is reasonable in design, convenient to use and favorable for assembling the oil changing nozzle and filling lubricating grease in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to a front axle kingpin. Background Art

[0002] At present, the steering knuckle component of the front axle of an automobile generally includes a front axle, a steering knuckle and a kingpin. The steering knuckle is movably connected to the front axle through the kingpin. The upper and lower parts of the kingpin are respectively equipped with bushings, and the upper and lower ends of the kingpin are respectively equipped with plugs with grease nipples. Grease is added to the upper and lower bushings of the kingpin through the grease nipples to play a role in lubricating the kingpin, and the function of the covers at both ends of the kingpin is to prevent dust and impurities from entering and contaminating the grease, causing wear of the kingpin and the bushing. The existing grease nipples are directly connected to the middle of the plugs, such as a front axle kingpin plug cover installation structure disclosed in CN203946166U, and a kingpin grease injection structure for a front axle assembly disclosed in CN203332208U. Since the operating space is small after the automobile steering knuckle component is installed in the vehicle, the grease nipples are not only small, but also not easy to install in the plug cover, and it is not convenient to operate when adding grease later. Utility Model Content

[0003] The utility model aims to provide a front axle kingpin to address the deficiencies of the prior art. The utility model has reasonable design, convenient use, and is convenient for assembling a grease nipple and filling grease.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a front axle kingpin, including a kingpin body, the kingpin body is provided with a first through hole, the first through hole is coaxial with the kingpin body, bushings and plugging covers are provided at both ends of the kingpin body, a boss is provided on the outer side of the plugging cover, the boss is provided with a second through hole connected to the first through hole, and a grease nipple is connected to the side of the boss.

[0005] Further, after the bushing is connected to the kingpin body, the end of the bushing is higher than the end of the kingpin body.

[0006] Furthermore, one end of the second through hole close to the inner side of the blocking cover deviates from the axis of the blocking cover.

[0007] Furthermore, the blocking covers at both ends of the kingpin body are provided with bosses.

[0008] Furthermore, the blocking cover at one end of the kingpin body is provided with the boss.

[0009] Furthermore, third through holes are provided on the sides of both ends of the kingpin body, and the third through holes are communicated with the first through holes.

[0010] The beneficial effects of the utility model are as follows: a front axle kingpin comprises a kingpin body, the kingpin body is provided with a first through hole, the first through hole is coaxial with the kingpin body, bushings and plugging covers are provided at both ends of the kingpin body, a boss is provided on the outside of the plugging cover, the boss is provided with a second through hole connected to the first through hole, and a grease nipple is connected to the side of the boss. By providing the boss on the outside of the plugging cover, the grease nipple can be installed on the side of the boss, thereby facilitating the assembly of the grease nipple and the boss, and at the same time, after the grease nipple is located on the side of the boss, it is convenient to add grease to the kingpin through the grease nipple later, making the assembly and later maintenance of the front axle kingpin easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 yes Figure 1 A magnified view of the local structure.

[0013] Description of reference numerals:

[0014] 1——kingpin body, 11——first through hole, 12——third through hole, 2——bushing, 3——blocking cover, 4——boss, 41——second through hole, 5——grease nipple. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0016] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1 , Figure 2 As shown, a front axle kingpin of this embodiment includes a kingpin body 1, the kingpin body 1 is provided with a first through hole 11, the first through hole 11 is coaxial with the kingpin body 1, the two ends of the kingpin body 1 are provided with a bushing 2 and a plug cover 3, the outer side of the plug cover 3 is provided with a boss 4, the boss 4 is provided with a second through hole 41 connected with the first through hole 11, the side of the boss 4 is connected with a grease nipple 5, one end of the second through hole 41 is located at the side of the boss 4 and is threadedly connected with the grease nipple 5, and the other end passes through the plug cover 3 and is connected with the first through hole 11. The bushing 2 is sleeved on the two ends of the kingpin body 1, and the plug cover 3 is located at the outer side of the end of the kingpin body 1. By providing the boss 4 on the outer side of the plug cover 3, the grease nipple 5 is located at the side of the boss 4, thereby solving the problem that the grease nipple 5 is inconvenient to install and add grease due to space limitations.

[0019] After the bushing 2 is connected to the kingpin body 1, the end of the bushing 2 is higher than the end of the kingpin body 1, and the diameter of the plugging cover 3 is not less than the outer diameter of the bushing 2. After the utility model is assembled, a gap can be formed between the inner end surface of the plugging cover 3 and the end of the kingpin body 1, so that when grease is added, a part of the grease is lubricated through the first through hole 11, and a part of the grease enters between the bushing 2 and the kingpin body 1 along the end surface of the kingpin body 1 to achieve lubrication.

[0020] The second through hole 41 is close to one end of the inner side of the plug cover 3 and deviates from the axis of the plug cover 3, so that a part of the grease can directly enter the first through hole 11, and the grease can be added and lubricated through the first through hole 11. A part of the grease can enter between the bushing 1 and the kingpin body 1 along the end face of the kingpin body 1 to achieve lubrication.

[0021] The blocking covers 3 at both ends of the kingpin body 1 are provided with the bosses 4 , and the blocking cover 3 at one end of the kingpin body 1 is provided with the boss 4 .

[0022] The sides of both ends of the kingpin body 1 are provided with third through holes 12, and the third through holes 12 are connected with the first through holes 11. The grease in the first through hole 11 can enter between the kingpin body 1 and the bushing 2 through the third through holes 12 to achieve grease filling.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A front axle kingpin, characterized in that: The invention comprises a kingpin body (1), wherein the kingpin body (1) is provided with a first through hole (11), wherein the first through hole (11) is coaxial with the kingpin body (1), wherein bushings (2) and plugging covers (3) are provided at both ends of the kingpin body (1), wherein a boss (4) is provided on the outer side of the plugging cover (3), wherein the boss (4) is provided with a second through hole (41) connected with the first through hole (11), and a grease nipple (5) is connected to the side of the boss (4).

2. A front axle kingpin according to claim 1, characterized in that: After the bushing (2) is connected to the kingpin body (1), the end of the bushing (2) is higher than the end of the kingpin body (1).

3. The front axle kingpin according to claim 1, characterized in that: One end of the second through hole (41) close to the inner side of the blocking cover (3) deviates from the axis of the blocking cover (3).

4. A front axle kingpin according to claim 1, characterized in that: The blocking covers (3) at both ends of the kingpin body (1) are provided with bosses (4).

5. The front axle kingpin according to claim 1, characterized in that: The blocking cover (3) at one end of the kingpin body (1) is provided with the boss (4).

6. The front axle kingpin according to claim 1, characterized in that: The sides of both ends of the kingpin body (1) are provided with third through holes (12), and the third through holes (12) are connected to the first through holes (11).

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