CN218806066U

CN218806066U - Steering input shaft

Info

Publication number: CN218806066U
Application number: CN202223511568.9U
Authority: CN
Inventors: 王斌; 陈豪
Original assignee: Hangzhou Hongwu Automobile Parts Co ltd
Current assignee: Hangzhou Hongwu Automobile Parts Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-07
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to an input shaft technical field just discloses a steering input shaft, include: the input shaft comprises an input shaft body and a torsion bar, wherein the input shaft body comprises a hollow part and a solid part, one side of the hollow part of the shaft body is connected with a positioning sleeve, the outer surface of the solid part of the shaft body is connected with an external spline, and the inner surface of the hollow part of the shaft body is connected with an internal spline; the auxiliary rod is connected to the inner wall of the hollow portion of the shaft body on one side of the internal spline, the torsion bar is inserted into the hollow portion of the shaft body, the spline of the torsion bar is meshed with the internal spline, and one side of the torsion bar is provided with a fixing hole. The utility model discloses a design that the auxiliary rod inserted in the torsion bar for the auxiliary rod can carry out extra support to the torsion bar, compares with prior art, and this device can increase the support and the spacing effect to the torsion bar through the auxiliary rod, reduces the probability that the hollow portion that leads to the axis body takes place deformation after the torsion bar slope, has increased the intensity of this device.

Description

Steering input shaft

Technical Field

The utility model relates to an input shaft technical field specifically is a steering input shaft.

Background

When the kinetic energy of the automobile is transmitted, a plurality of parts are required to be matched with each other, and the steering input shaft is an important part, so that although the existing steering input shaft is continuously innovated and developed, the requirements of people are basically met, but an improvable space still exists.

For example, the patent document with the publication number of CN208306737U discloses an input shaft for an automobile steering gear, which comprises a straight rod-shaped body, wherein the outer wall of the upper end of the body is provided with two circles of splines which are axially arranged at intervals, and the input shaft is characterized in that the lower end of the body is provided with a blind hole which is coaxially arranged with the body, the inner end of the blind hole extends to the middle part of the body, the inner wall of the blind hole is provided with an internal spline, the structural strength of the input shaft is high, the power transmission is accurate, the working stability is good, the rotation is smooth, the service life is long, and the input shaft is high in structural strength, accurate in power transmission, good in working stability and long in service life

Although the input shaft has a higher structural strength by improving the hollow space inside, once the torsion bar is tilted, the hollow portion of the shaft body is deformed, which affects the actual transmission effect of the input shaft.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above technical problem, an object of the present invention is to provide a steering input shaft, which is provided in the above background art, the input shaft is provided with a hollow space through the improvement, so that the structural strength is higher, but the torsion bar of the hollow part is directly inserted into the hollow space, and once the torsion bar inclines, the hollow part of the shaft body is deformed, and the actual transmission effect is affected.

The utility model provides a following technical scheme: a steering input shaft comprising:

the input shaft comprises an input shaft body and a torsion bar, wherein the input shaft body comprises a hollow part and a solid part, one side of the hollow part of the shaft body is connected with a positioning sleeve, the outer surface of the solid part of the shaft body is connected with an external spline, and the inner surface of the hollow part of the shaft body is connected with an internal spline;

the auxiliary rod is connected to the inner wall of the hollow portion of the shaft body on one side of the internal spline, the torsion bar is inserted into the hollow portion of the shaft body, the spline of the torsion bar is meshed with the internal spline, the fixing hole is formed in one side of the torsion bar, the auxiliary rod is inserted into the fixing hole, the fixing hole of the torsion bar and the cross section of the auxiliary rod are square, and the auxiliary rod is inserted into the torsion bar, so that the auxiliary rod can additionally support the torsion bar.

Furthermore, an oil moistening groove is formed in the outer surface of the hollow portion of the shaft body, the oil moistening groove is in a thread shape, and the oil is distributed more uniformly through the thread oil moistening groove.

Further, the axis body outside of one side of moist oil groove is connected with the rubber circle, and the quantity of rubber circle is two at least, the iron wire is installed in the inside all embedding of rubber circle, utilizes the rubber circle to increase sealed effect like this.

Furthermore, the locating hole has been seted up on the locating sleeve, and the quantity of locating hole is two, two the locating hole all link up the locating sleeve, and has seted up the score line on two inboard locating sleeves of locating hole, adopts the location design of locating hole, and the axis body of being convenient for and the whole processing of locating sleeve, the quantity of locating hole can play the effect of confirming the horizontally for two and middle score line simultaneously, further increases location effect.

Furthermore, the outside of auxiliary rod is provided with the steel ring, and the adhesion of steel ring outside is on the hollow portion inner wall of axis body, utilizes the steel ring can increase the intensity that auxiliary rod and axis body are connected the department like this.

Furthermore, the inside stable groove of assisting of having seted up of fixed orifices of torsion bar, and assist the quantity of stable groove and be one at least, it assists steady strip to insert in assisting steady groove, and assists the bottom of steady strip and connect on the auxiliary rod, utilizes the spacing effect of increasing auxiliary rod to the torsion bar of assisting steady groove and the activity of assisting steady strip like this.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a be equipped with auxiliary rod and torsion bar, adopt the auxiliary rod to insert the design in the torsion bar for the auxiliary rod can carry out extra support to the torsion bar, compares with prior art, and this device can increase support and spacing effect to the torsion bar through the auxiliary rod, reduces the probability that the hollow portion that leads to the axis body takes place deformation after the torsion bar slope, has increased the intensity of this device.

2. The utility model discloses a be equipped with locating hole and mar line, adopt the location design of locating hole, the whole processing of the axis body and position sleeve of being convenient for, the quantity of locating hole can play the effect of confirming the horizontally for two and middle mar line simultaneously, further increases location effect.

Drawings

Fig. 1 is a schematic left side top perspective view of the overall structure of the present invention.

Fig. 2 is a schematic right side top perspective view of the overall structure of the present invention.

Fig. 3 is a schematic view of a partial perspective view of the shaft body and the positioning sleeve structure of the present invention.

Fig. 4 is an exploded perspective view of the hollow part of the shaft body structure of the present invention.

Fig. 5 is an exploded perspective view of the torsion bar structure of the present invention.

The reference signs are: 1. an input shaft main body; 110. a shaft body; 111. an external spline; 112. a positioning sleeve; 113. an internal spline; 114. an auxiliary lever; 115. a torsion bar; 116. an oil moistening groove; 117. a rubber ring; 118. positioning holes; 119. scribing a line; 120. steel ring; 121. auxiliary stabilizing grooves; 122. and (5) assisting to stabilize strips.

Detailed Description

The present invention will be described more fully with reference to the accompanying drawings, and the embodiments of the present invention are merely examples, and the steering input shaft according to the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by a person skilled in the art without creative efforts belong to the scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-5 of the drawings, the present invention provides a steering input shaft, comprising:

the input shaft comprises an input shaft body 1, wherein the input shaft body 1 comprises a shaft body 110 and a torsion bar 115, the shaft body 110 consists of a hollow part and a solid part, one side of the hollow part of the shaft body 110 is connected with a positioning sleeve 112, the outer surface of the solid part of the shaft body 110 is connected with an external spline 111, and the inner surface of the hollow part of the shaft body 110 is connected with an internal spline 113;

the auxiliary rod 114, the auxiliary rod 114 is connected on the inner wall of the hollow portion of the shaft body 110 on one side of the internal spline 113, the torsion bar 115 is inserted in the hollow portion of the shaft body 110, the spline of the torsion bar 115 is meshed with the internal spline 113, one side of the torsion bar 115 is provided with a fixing hole, the auxiliary rod 114 is inserted in the fixing hole, the fixing hole of the torsion bar 115 and the cross-sectional shape of the auxiliary rod 114 are both square, the outer side of the auxiliary rod 114 is provided with a steel ring 120, the outer side of the steel ring 120 is adhered on the inner wall of the hollow portion of the shaft body 110, the fixing hole of the torsion bar 115 is internally provided with an auxiliary stabilizing groove 121, the number of the auxiliary stabilizing grooves 121 is at least one, an auxiliary stabilizing strip 122 is inserted in the auxiliary stabilizing groove 121, and the bottom end of the auxiliary stabilizing strip 122 is connected on the auxiliary rod 114.

The working principle is as follows: in this case, the torsion bar 115 is inserted into the hollow portion of the shaft body 110, and the fixing hole of the torsion bar 115 and the auxiliary rod 114 are aligned and the auxiliary stabilizing groove 121 and the auxiliary stabilizing strip 122 are aligned.

Example two:

referring to fig. 3 in the drawings of the specification, the difference between the second embodiment and the first embodiment is that: an oil wetting groove 116 is formed in the outer surface of the hollow portion of the shaft body 110, the oil wetting groove 116 is in a thread shape, a rubber ring 117 is connected to the outer side of the shaft body 110 on one side of the oil wetting groove 116, at least two rubber rings 117 are arranged, an iron wire is embedded inside each rubber ring 117, positioning holes 118 are formed in the positioning sleeve 112, two positioning holes 118 are formed in each positioning hole 118, the positioning sleeve 112 is communicated with the two positioning holes 118, and a scratching line 119 is formed in the positioning sleeve 112 on the inner side of each positioning hole 118.

The working principle is as follows: during machining, the device may be positioned according to the positions of positioning hole 118 and score line 119.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to common designs, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steering input shaft, comprising:

the input shaft comprises an input shaft body (1), wherein the input shaft body (1) comprises a shaft body (110) and a torsion bar (115), the shaft body (110) consists of a hollow part and a solid part, one side of the hollow part of the shaft body (110) is connected with a positioning sleeve (112), the outer surface of the solid part of the shaft body (110) is connected with an external spline (111), and the inner surface of the hollow part of the shaft body (110) is connected with an internal spline (113);

the auxiliary rod (114) is connected to the inner wall of the hollow portion of the shaft body (110) on one side of the internal spline (113), the torsion bar (115) is inserted into the hollow portion of the shaft body (110), the spline of the torsion bar (115) is meshed with the internal spline (113), one side of the torsion bar (115) is provided with a fixing hole, the auxiliary rod (114) is inserted into the fixing hole, and the cross sections of the fixing hole of the torsion bar (115) and the auxiliary rod (114) are square.

2. A steering input shaft according to claim 1, characterized in that: an oil wetting groove (116) is formed in the outer surface of the hollow portion of the shaft body (110), and the oil wetting groove (116) is threaded.

3. A steering input shaft according to claim 2, characterized in that: the axis body (110) outside of one side of lubricating groove (116) is connected with rubber circle (117), and the quantity of rubber circle (117) is two at least, the iron wire is installed in the inside all embedding of rubber circle (117).

4. A steering input shaft according to claim 1, characterized in that: the positioning sleeve (112) is provided with two positioning holes (118), the two positioning holes (118) are communicated with the positioning sleeve (112), and the positioning sleeve (112) on the inner sides of the two positioning holes (118) is provided with a score line (119).

5. A steering input shaft according to claim 1, characterized in that: a steel ring (120) is arranged on the outer side of the auxiliary rod (114), and the outer side of the steel ring (120) is adhered to the inner wall of the hollow part of the shaft body (110).

6. A steering input shaft according to claim 1, characterized in that: the torsion bar (115) is characterized in that auxiliary stabilizing grooves (121) are formed in the fixing holes, the number of the auxiliary stabilizing grooves (121) is at least one, auxiliary stabilizing strips (122) are inserted into the auxiliary stabilizing grooves (121), and the bottom ends of the auxiliary stabilizing strips (122) are connected to the auxiliary rods (114).