CN211494212U

CN211494212U - Input shaft for automobile steering system

Info

Publication number: CN211494212U
Application number: CN201922359950.4U
Authority: CN
Inventors: 汪文耀
Original assignee: Ningbo Sanfeng Enterprise Machinery And Electronics Co ltd
Current assignee: Ningbo Sanfeng Enterprise Machinery And Electronics Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-15
Anticipated expiration: 2029-12-24

Abstract

The utility model provides an input shaft for a steering system of automobile: the oil-saving transmission device comprises an input shaft body, and an inserting part and a gear part which are arranged at two ends of the input shaft body, wherein an oil storage cavity is arranged in the input shaft body, an oil through groove which is annularly distributed along the peripheral wall of the gear part is arranged on the gear part, an oil through hole is arranged on the inner bottom wall of the oil through groove, and the oil through hole is communicated with the oil storage cavity in the input shaft body; the gear part is provided with an arc surface at the oil through hole, and the arc surface is provided with at least one oil storage tank communicated with the oil through tank; through the arrangement of the oil through grooves, lubricating oil in the oil storage cavity can be guided into each tooth socket of the gear part, so that the gear part is uniformly lubricated; the oil storage groove is formed in the arc-shaped surface, so that excessive lubricating oil flowing out of the oil through hole can be temporarily stored, the waste of the lubricating oil is avoided, and the lubricating oil can be conveniently supplied to the gear part at any time; the device has simple structure, can continuously supply lubricating oil to the gear part, and reduces the mechanical abrasion to the input shaft.

Description

Input shaft for automobile steering system

Technical Field

The utility model relates to an input shaft technical field, what specifically say is an input shaft for automobile steering system.

Background

With the continuous development of society, automobiles are becoming more and more popular as a convenient and fast vehicle. The steering wheel is connected with the inserting part of the input shaft, and the gear part of the input shaft is connected with a driven wheel on an automobile steering device, so that the power on the steering wheel is transmitted to the automobile steering device through the input shaft. Since the gear portion of the input shaft is in mesh transmission with the driven wheel of the automobile steering gear, mechanical wear is severe, and it is necessary to reduce the mechanical wear by lubricating oil. However, the input shaft in the steering system is positioned in the automobile, the supply of lubricating oil is inconvenient, if the use time is long, the lubricating oil is insufficient, the input shaft is seriously abraded, the connection of all parts of the automobile steering system is complex, and the maintenance is very troublesome.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above prior art's defect, provide a simple structure and can continuously supply with the auto steering system input shaft of lubricating oil.

The technical solution of the utility model is that, a car a steering system input shaft with following structure is provided: the steering gear comprises an input shaft body, and an inserting part and a gear part which are arranged at two ends of the input shaft body, wherein the inserting part is used for being matched and inserted with a bearing on a steering wheel, and the gear part is connected with a driven wheel on a steering gear and used for driving the driven wheel to rotate; an oil storage cavity is arranged in the input shaft body, oil through grooves distributed along the peripheral wall of the gear part in a ring shape are arranged on the gear part, oil through holes are formed in the inner bottom wall of each oil through groove, and the oil through holes are communicated with the oil storage cavity in the input shaft body; an arc-shaped surface is arranged at the oil through hole on the gear part, and at least one oil storage groove communicated with the oil through groove is arranged on the arc-shaped surface; still be equipped with on the periphery wall of gear portion be used for with follow driving wheel inside wall looks gomphosis plane, evenly distributed has a plurality of oil grooves of leading that extend along input shaft body length direction on the plane, it communicates with logical oil groove to lead to the oil groove mutually.

After the structure above the adoption, the utility model relates to an input shaft for automobile steering system compares with prior art, has following advantage: through the arrangement of the oil through grooves, lubricating oil in the oil storage cavity can be guided into each tooth socket of the gear part, so that the gear part is uniformly lubricated; the oil storage groove is formed in the arc-shaped surface, so that excessive lubricating oil flowing out of the oil through hole can be temporarily stored, the waste of the lubricating oil is avoided, and the lubricating oil can be conveniently supplied to the gear part at any time; the plane is provided with an oil guide groove extending along the length direction of the input shaft body, so that the lubricating oil can be guided and temporarily stored; the device has simple structure, can continuously supply lubricating oil to the gear part, and reduces the mechanical abrasion to the input shaft.

Preferably, a choke piece is arranged in the oil through hole and used for slowing down the outflow speed of oil in the oil storage cavity. Through the obstruction of the flow resisting part, the outflow speed of oil in the oil storage cavity is slowed down, so that lubricating oil can be supplied for a long time.

Preferably, the choke piece comprises a spherical accommodating cavity arranged in the oil through hole, and a ball is in clearance fit in the accommodating cavity. Through the separation of holding intracavity ball, can reduce the outflow speed of the interior fluid of oil storage chamber.

Preferably, the number of the oil storage grooves is 3, and the oil storage grooves are distributed annularly along the axis of the oil through hole. Set up the oil storage tank for along oil through hole axis annular distribution, can get up the unnecessary lubricating oil storage that flows out in the oil through hole fast, avoid causing the waste.

Preferably, the plane surface of the gear part is arranged symmetrically to the arc surface. The arrangement can ensure that lubricating oil can be diffused to the periphery from two positions of the plane and the arc-shaped surface, and the gear part can be quickly and uniformly lubricated.

Preferably, the insertion part is provided with an oil filling hole, and the oil filling hole is communicated with an oil storage cavity in the input shaft body. The arrangement is convenient for injecting lubricating oil into the oil storage cavity.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view in another view direction of the present invention.

Fig. 3 is a schematic sectional view of the present invention.

Fig. 4 is an enlarged view of a portion a of fig. 1.

Fig. 5 is an enlarged view of a portion B of fig. 3.

As shown in the figure:

1. input shaft body, 2, grafting portion, 3, gear portion, 4, oil storage chamber, 5, logical oil groove, 6, logical oilhole, 7, arcwall face, 8, oil storage tank, 9, plane, 10, lead oil groove, 11, choked flow spare, 12, holding chamber, 13, ball, 14, oil filler point.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Meanwhile, the terms "first", "second", and the like are only used for distinguishing the names of the components, and have no primary and secondary relationship, so that the present invention is not limited.

As shown in fig. 1, 2, 3, 4 and 5;

the utility model discloses an input shaft for automobile steering system: the steering gear comprises an input shaft body 1, and an inserting part 2 and a gear part 3 which are arranged at two ends of the input shaft body 1, wherein the inserting part 2 is used for being matched and inserted with a bearing on a steering wheel, and the gear part 3 is connected with a driven wheel on a steering gear and used for driving the driven wheel to rotate; an oil storage cavity 4 is arranged in the input shaft body 1, an oil through groove 5 annularly distributed along the peripheral wall of the gear part 3 is arranged on the gear part, an oil through hole 6 is arranged on the inner bottom wall of the oil through groove 5, and the oil through hole 6 is communicated with the oil storage cavity 4 in the input shaft body 1; an arc-shaped surface 7 is arranged on the gear part 3 at the oil through hole 6, and at least one oil storage tank 8 communicated with the oil through tank 5 is arranged on the arc-shaped surface 7; the periphery wall of gear portion 3 still is equipped with the plane 9 that is used for with follow driving wheel inside wall looks gomphosis, and evenly distributed has a plurality of oil grooves 10 of leading that extend along input shaft body 1 length direction on the plane 9, and leads oil groove 10 and leads to oil groove 5 to be linked together.

Through the arrangement of the oil through groove 5, lubricating oil in the oil storage cavity 4 can be guided into each tooth socket of the gear part 3, so that the gear part 3 can be lubricated uniformly; the arc-shaped surface 7 is provided with the oil storage groove 8, so that excessive lubricating oil flowing out of the oil through hole 6 can be temporarily stored, the waste of the lubricating oil is avoided, and the lubricating oil can be supplied to the gear part 3 at any time; an oil guide groove 10 extending along the length direction of the input shaft body 1 is arranged on the plane 9, so that the lubricating oil can be guided and temporarily stored; the device has a simple structure, can continuously supply lubricating oil to the gear part 3, and reduces mechanical abrasion to the input shaft.

A choke piece 11 is arranged in the oil through hole 6, and the choke piece 11 is used for slowing down the outflow speed of oil in the oil storage cavity 4. The flow-out speed of the oil in the oil storage chamber 4 is slowed down through the blocking of the flow blocking piece 11, so that the lubricating oil can be supplied for a long time.

The choke 11 comprises a spherical accommodating cavity 12 arranged in the oil through hole 6, and a ball 13 is in clearance fit in the accommodating cavity 12. The outflow speed of the oil in the oil storage chamber 4 can be reduced by the blocking of the balls 13 in the accommodating chamber 12.

The number of the oil storage grooves 8 is 3, and the oil storage grooves are annularly distributed along the axis of the oil through hole 6. Set up oil storage tank 8 to distribute for 6 axis ring distributions along the oil through hole, can save the unnecessary lubricating oil that flows out in the oil through hole 6 fast, avoid causing the waste.

The plane 9 on the gear part 3 and the arc-shaped surface 7 are symmetrically arranged. This arrangement enables the lubricating oil to spread from both the flat surface 9 and the arc surface 7 to the surroundings, and quickly and uniformly lubricate the gear portion 3.

An oil filling hole 14 is arranged on the insertion part 2, and the oil filling hole 14 is communicated with the oil storage cavity 4 in the input shaft body 1. This arrangement facilitates the injection of lubricating oil into the oil reservoir 4.

An oil plug is further arranged on the oil filling hole 14, and a vent hole is formed in the oil plug, so that lubricating oil can be prevented from leaking from the oil filling hole 14 while flowing out conveniently.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. The utility model provides an input shaft for car a steering system, it includes input shaft body (1) and sets up grafting portion (2) and gear portion (3) at input shaft body (1) both ends, grafting portion (2) are used for pegging graft with the bearing cooperation on the steering wheel, gear portion (3) are connected with the driven round of driving on the steering gear for the rotation of driven round of drive, its characterized in that: an oil storage cavity (4) is arranged in the input shaft body (1), an oil through groove (5) which is annularly distributed along the peripheral wall of the gear part (3) is arranged on the gear part, an oil through hole (6) is arranged on the inner bottom wall of the oil through groove (5), and the oil through hole (6) is communicated with the oil storage cavity (4) in the input shaft body (1); an arc-shaped surface (7) is arranged on the gear part (3) and positioned at the oil through hole (6), and at least one oil storage groove (8) communicated with the oil through groove (5) is formed in the arc-shaped surface (7); still be equipped with on the periphery wall of gear portion (3) and be used for with follow driving wheel inside wall looks gomphosis plane (9), evenly distributed has a plurality of oil grooves (10) of leading that extend along input shaft body (1) length direction on plane (9), it is linked together with logical oil groove (5) to lead oil groove (10).

2. An input shaft for a steering system of an automobile according to claim 1, characterized in that: a flow blocking piece (11) is arranged in the oil through hole (6), and the flow blocking piece (11) is used for slowing down the outflow speed of oil in the oil storage cavity (4).

3. An input shaft for a steering system of an automobile according to claim 2, characterized in that: the flow resisting piece (11) comprises an accommodating cavity (12) arranged in the oil passing hole (6), and a ball (13) is in clearance fit in the accommodating cavity (12).

4. An input shaft for a steering system of an automobile according to claim 1, characterized in that: the number of the oil storage grooves (8) is 3, and the oil storage grooves are annularly distributed along the axis of the oil through hole (6).

5. An input shaft for a steering system of an automobile according to claim 1, characterized in that: the plane (9) on the gear part (3) and the arc-shaped surface (7) are symmetrically arranged.

6. An input shaft for a steering system of an automobile according to claim 1, characterized in that: an oil filling hole (14) is formed in the inserting portion (2), and the oil filling hole (14) is communicated with an oil storage cavity (4) in the input shaft body (1).