PH12017000327A1 - Steering bevel gear assembly constituting gear apparatus - Google Patents

Steering bevel gear assembly constituting gear apparatus Download PDF

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Publication number
PH12017000327A1
PH12017000327A1 PH12017000327A PH12017000327A PH12017000327A1 PH 12017000327 A1 PH12017000327 A1 PH 12017000327A1 PH 12017000327 A PH12017000327 A PH 12017000327A PH 12017000327 A PH12017000327 A PH 12017000327A PH 12017000327 A1 PH12017000327 A1 PH 12017000327A1
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PH
Philippines
Prior art keywords
bevel gear
steering
gear
bevel
section
Prior art date
Application number
PH12017000327A
Inventor
Yong Gwan Kim
Original Assignee
T And G Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by T And G Co Ltd filed Critical T And G Co Ltd
Priority to PH12017000327A priority Critical patent/PH12017000327A1/en
Publication of PH12017000327A1 publication Critical patent/PH12017000327A1/en

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Abstract

A steering bevel gear assembly constituting a gear apparatus according to the present disclosure includes a gear case (10) to which a rotational force is inputted from a steering wheel of a vehicle, a front cover (20) detachably connected to the gear case (1 0) to receive the rotational driving force inputted through the gear case (10) and lead to a rotary motion of vehicle wheels, a first bevel gear (30) connected through inside and outside of the gear case (10) to directly receive the rotational force from the steering wheel of the vehicle, and a second bevel gear (40) linked to the first bevel gear (30) to receive the rotational force and connected through inside and outside of the front cover (20), wherein rotation directions of the first bevel gear (30) and the second bevel gear (40) are equal.

Description

8 ~ in which a pair of bevel gears pivot. The rotation shift space 14 is surrounded by . three areas of the steering input section 11, the output support section 12 and the x first connection section 13. -
The front cover 20 includes a steering output section 21 rotatably placed = through the second bevel gear 40 passes, and a second connection section 22 - connected with the first connection section 13 of the gear case 10 and having a - second bevel gear through-hole 23 through which the second bevel gear 40 geared © with the first bevel gear 30 passes. Connection of the gear case 10 and the front ~ cover 20 is established through a separate connecting means such as a connecting bolt in contact between the first connection section 13 and the second connection section 22. The front cover 20 is made by casting the same aluminum material as the gear case 10.
The first bevel gear 30 includes a first bevel gear shaft 31 rotatably placed through the steering input section 11, a first bevel gear teeth 32 connected on one end of the first bevel gear shaft 31, and a first power transmission section 33 shaped as involute serration and connected on the other end of the first bevel gear shaft 31.
The second bevel gear 40 includes a second bevel gear shaft 41 rotatably placed through the steering output section 21, a second bevel gear teeth 42 connected to one end of the second bevel gear shaft 41, and a second power transmission section 43 shaped as involute serration and connected on the other end of the second bevel gear shaft 41. The first bevel gear teeth 32 and the second bevel gear teeth 42 operate in mesh along different axial directions, and may be engaged at an intersection angle of, for example, 90 degrees.
The first protection unit 50 includes a first dust cover 51 through which the first bevel gear shaft 31 passes, covering the outside of the steering input section 11, ~ a first support cap 52 connected to the inside of an inlet of the steering input section 2 11, a first oil seal 53 placed between the first support cap 52 and the first bevel gear y shaft 31, a first lock nut 54 placed at the point of connection of the steering input = section 11 and the first support cap 52, a first bearing 55 placed between the first - support cap 52 and the first bevel gear shaft 31 inward the first oil seal 53, a snap _ ring 56 connected on the first bevel gear shaft 31 inward the first bearing 55, and a = second bearing 57 placed inside of the first bearing 55 on the first bevel gear shaft = 31.
The second protection unit 60 includes a second dust cover 61 through which the second bevel gear shaft 41 passes, covering the outside of the steering output section 21, a second support cap 62 connected to the inside of an inlet of the steering output section 21, a second oil seal 63 placed between the second support cap 62 and the second bevel gear shaft 41, a second lock nut 64 placed at the point of connection of the steering output section 21 and the second support cap 62, a first bearing 65 placed between the second support cap 62 and the second bevel gear shaft 41 inward the second oil seal 63, and a second bearing 66 placed inside of the second bearing 65 on the second bevel gear shaft 41.
In the present disclosure, when the rotational force is received from the steering of the vehicle through the first bevel gear 30 installed at the steering input section 11 of the gear case 10, the pair of bevel gear teeth on the second bevel gear 40 placed in the direction perpendicular to the first bevel gear 30 function to change the rotation direction as they are engaged with each other.
In this state, the second bevel gear 40 operates with the rear end supported on the output support section 12 of the gear case 10 and the front end supported on - the steering output section 21. -
With the operating mechanism, when viewing the first bevel gear 30 from the . outside of the steering input section 11, as the first bevel gear 30 rotates in = counterclockwise direction, the first bevel gear teeth 32 also rotates in o counterclockwise direction. _
Meanwhile, when viewing from the outside of the steering output section 21, = as the second bevel gear teeth 42 engaged with the first bevel gear teeth 32 also Vi rotates in counterclockwise direction, the front end of the second bevel gear 40 rotates in counterclockwise direction in the same way as the first bevel gear 30.
The present disclosure is configured to make the steering bevel gear assembly have the same rotation direction at the input side and output side as described above, so that the output side bevel gear has a different position of engagement with the input side bevel gear from a general type, wherein the axis line of the output side bevel gear and the input side axis line form a right angle in the same way as a general bevel gear, while the output side bevel gear is configured to output in a direction narrowing in the conical direction of the second bevel gear teeth 42.
As described above, the steering bevel gear assembly constituting the gear apparatus according to the present disclosure normally operates the steering mechanism by providing the steering bevel gear used in the gear apparatus constituting the steering system of the vehicle configured with right hand drive (RHD), adapted for driving on the road where left hand drive (LHD) vehicles can drive, while the other components remain unchanged.
While the technical spirit of the present disclosure has been hereinabove ~ described for illustration purpose, persons having ordinary skill in the technical field pertaining to the present disclosure will appreciate that various modifications and . changes may be made without departing from the nature of the present disclosure. =
Therefore, the disclosed embodiments of the present disclosure are intended to . describe the technical spirit of the present disclosure, but not to limit the technical _ spirit of the present disclosure, and the technical spirit of the present disclosure is not - limited by these embodiments. The scope of protection of the present disclosure is = defined by the appended claims, and it should be construed that the technical spirit in all the equivalents to which the appended claims are entitled fall within the scope of protection of the present disclosure. [Detailed Description of Main Elements] 10: Gear case 20: Front cover 30: First bevel gear 40: Second bevel gear 50: First protection unit 60: Second protection unit i CS 1 = [DESCRIPTION] os [Invention Title] o
STEERING BEVEL GEAR ASSEMBLY CONSTITUTING GEAR APPARATUS - [Technical Field] | ol
The present disclosure relates to a steering bevel gear assembly constituting o a gear apparatus in which the rotation direction of the steering bevel gear assembly 2 is changed to have the same rotation direction of the input side and output side, so as to operate normal steering mechanism in the conversion of an existing commercially available right hand drive (RHD) vehicle to a left hand drive (LHD) vehicle. [Background Art]
A steering system is the collection of components controlled when a driver arbitrarily changes the travel direction of a vehicle as intended, and when the driver turns a steering wheel to change the angle of wheels, the vehicle changes the travel direction.
When the driver turns the steering wheel, the turning force is transmitted to a steering gear which then slows down the vehicle to change the direction of the front wheels.
The steering system is a device for steering to arbitrarily change the travel direction of the vehicle, and generally includes three equipment: control equipment, gear equipment, and link equipment. There are two major types of steering systems according to the type of vehicle or suspension; an axle suspension steering system widely used in commercial vehicles, and an independent suspension steering system . widely used in passenger vehicles.
The control equipment is a part that enables the driver to directly control the - steering wheel and transmits the steering force to the steering gear and linkage, and © the control equipment includes the steering wheel, a steering shaft, a steering column - and joints. -
The gear equipment is a part that increases the steering force by reducing the = steering shaft rotation to, for example, about 20:1, and at the same time, changes the | - motion direction of the control equipment and transmits it to the link equipment. The steering gear is largely classified into a ball nut type and a rack pinion type, and small vehicles primarily use the rack pinion type.
The rack pinion steering gear has a structure in which a pinion is installed at the end of the steering shaft and a rack is engaged with the pinion, and when the pinion rotates, the rack moves in lateral direction, and the steering wheel is moved through tie rods connected to two ends of the rack together with knuckles.
The link equipment is a part that transmits the operation of the gear equipment to the front wheels, and correctly supports the relationship position between left and right wheels, and includes the rack engaged with the pinion, the tie rods, and knuckle arms.
Meanwhile, a steering bevel gear assembly constituting the gear equipment performs function to receive the steering wheel rotation from the driver at the input side, change the direction and transmit the rotational force, and the direction of rotation axes is changed by the angle of the input side and output side, allowing bevel gears to mesh.
3 oe
A pair of bevel gears that make up the bevel gear assembly pivot, generally > forming a right angle or an acute angle between the rotation axes. »
Generally, the rotation direction of the pair of bevel gears that make up the - bevel gear assembly is opposite at the input side and output side. That is, if the = input side direction is clockwise, the output side direction is counterclockwise. This - is because of mechanism structure in which the rotation direction of the steering - wheel and the rotational force through the bevel gears are the same as the motion = direction of the rack-pinion gear. ~
Meanwhile, the rotation direction is determined by engagement of the pair of bevel gears arranged at a given angle inside, and input and output side axes lines intersect at 90 degrees, and shafts are formed in a direction opposite to the conical side direction of the bevel gears. This is a common and general combination of bevel gears.
Specifically, when the input side rotates in clockwise direction, the output side rotates in counterclockwise direction, the pinion gear rotates in counterclockwise direction, the tie rods make left-right movements, and the wheels turn right.
Meanwhile, when an existing commercially available right hand drive (RHD) vehicle is converted to a left hand drive (LHD) vehicle, even though each existing vehicle component is used as it is, a rack-pinion gear module is turned upside down at the input side, and as a consequence, the rotation direction of the vehicle may be reversed. [Disclosure] [Technical Problem]
. -
As described above, when a steering bevel gear used in an existing right hand drive (RHD) vehicle is used for a left hand drive (LHD) vehicle, the steering . mechanism does not normally operate.
To operate normal steering mechanism, the present disclosure changes the o rotation direction of the steering bevel gear to make the bevel gear module have the v same rotation direction of the input side and the output side.
To this end, the output side bevel gear has a different position of engagement - with the input side bevel gear from general arrangement. 0
The axis line of the output side bevel gear and the axis line of the input side bevel gear form a right angle in the same way as a general bevel gear, while the output side bevel gear is configured to output in conical side direction.
The steering bevel gear assembly according to the present disclosure is completely different from bevel gear design with a general shaft.
The output side bevel gear shaft has two bearings at the front and rear of the shaft for stable support.
The front cover uses an aluminum casting material in the same way as the gear case, counterpart connectors on input and output side ends of the shaft have involute serration, and connection with the gear case is established by three bolts. [Technical Solution}
To achieve the object, a steering bevel gear assembly constituting a gear apparatus according to the present disclosure includes a gear case 10 to which a rotational force is inputted from a steering wheel of a vehicle, a front cover 20 detachably connected to the gear case 10 to receive the rotational driving force
. - inputted through the gear case 10 and lead to a rotary motion of vehicle wheels, a first bevel gear 30 connected through inside and outside of the gear case 10 to - directly receive the rotational force from the steering wheel of the vehicle, and a - second bevel gear 40 linked to the first bevel gear 30 to receive the rotational force = and connected through inside and outside of the front cover 20, wherein rotation - directions of the first bevel gear 30 and the second bevel gear 40 are equal. .
The front cover 20 includes a steering output section 21 rotatably placed = through which the second bevel gear 40 passes, and a bevel gear through-hole 23 = connected with the gear case 10 and allowing the second bevel gear 40 geared with the first bevel gear 30 to pass therethrough, and the front cover 20 is made by casting a same aluminum material as the gear case 10.
The first bevel gear 30 includes a first bevel gear shaft 31 rotatably placed through the steering input section 11, and a first bevel gear teeth 32 connected on one end of the first bevel gear shaft 31, the second bevel gear 40 includes a second bevel gear shaft 41 rotatably placed through the steering output section 21, and a second bevel gear teeth 42 connected on one end of the second bevel gear shaft 41, and the second bevel gear teeth 42 receives the force from the first bevel gear teeth 32 and outputs it in conical side direction.
The second bevel gear 40 operates with a rear end supported in the gear case 10 and a front end supported on the steering output section 21. [Advantageous Effects]
The steering bevel gear assembly constituting a gear apparatus according to the present disclosure as described above normally operates the steering mechanism by providing the steering bevel gear used in the gear apparatus ro constituting the steering system of the vehicle configured with right hand drive (RHD), . adapted for driving on the road where left hand drive (LHD) vehicles can drive, while - the other components remain unchanged. = ; [Description of Drawings] .
Fig. 1 is a perspective view of a steering bevel gear assembly constituting a = gear apparatus according to an embodiment of the present disclosure.
Fig. 2 is a front view of the steering bevel gear assembly of Fig. 1.
Fig. 3 is a cross-sectional view of the steering bevel gear assembly of Fig. 1. [Best Mode]
Hereinafter, the embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. However, the present disclosure is not limited to the disclosed embodiments and will be embodied in many different forms, and these embodiments are provided so that the present disclosure will be thorough and complete and will fully convey the scope of the present disclosure to persons having ordinary skill in the art. Like reference symbols indicate like elements.
It should be noted that in adding reference symbols to elements of each drawing, like elements have like reference symbols if possible even though they are indicated on different drawings. Furthermore, in describing the present disclosure, when a detailed description of related known configuration or functionality is deemed to render the essence of the present disclosure ambiguous, its detailed description is
: omitted herein. -
Hereinafter, a steering bevel gear assembly constituting a gear apparatus - according to an embodiment of the present disclosure is described with reference to =
Figs. 1 to 3. -
The steering bevel gear assembly constituting a gear apparatus includes a ~ gear case 10 where a space for rotary motion of a pair of bevel gears is formed and a _ rotational force is inputted from the steering wheel of the vehicle, a front cover 20 - detachably connected to the gear case 10 to receive the rotational driving force . inputted through the gear case 10 and transmit it to the rack-pinion, leading to a rotary motion of the vehicle wheels, a first bevel gear 30 connected through the inside and outside of the gear case 10 to directly receive the rotational force from the steering wheel of the vehicle, a second bevel gear 40 directly receiving the rotational force from the first bevel gear 30 and connected through the inside and outside of the front cover 20, a first protection unit 50 placed at the point of connection of the first bevel gear 30 and the gear case 10 to achieve stable connection of the first bevel gear 30 and prevent leaks through the point of connection, and a second protection unit 60 placed at the point of connection of the second bevel gear 40 and the front cover 20 to achieve stable connection of the second bevel gear 40 and prevent leaks through the point of connection.
The gear case 10 includes a steering input section 11 rotatably placed through which the first bevel gear 30 passes, a steering output support section 12 to which the end of the second bevel gear 40 is rotatably connected, a first connection section 13 connected with the front cover 20 and allowing the second bevel gear 40 geared with the first bevel gear 30 to pass therethrough, and a rotation shift space 14

Claims (4)

CLAIMS: Gm LR 23 PM ge
1. A steering bevel gear assembly constituting a gear apparatus, comprising: » a gear case (10) to which a rotational force is inputted from a steering wheel of a ~ vehicle; ~ a front cover (20) detachably connected to the gear case (10) to receive the rotational = LI driving force inputted through the gear case (10) and lead to a rotary motion of vehicle wheels; o a first bevel gear (30) connected through inside and outside of the gear case (10) to c directly receive the rotational force from the steering wheel of the vehicle; and a second bevel gear (40) linked to the first bevel gear (30) to receive the rotational force and connected through inside and outside of the front cover (20), wherein the gear case 10 includes a steering input section (11) rotatably placed through which the first bevel gear (30) passes, a steering output support section (12) to which the end of the second bevel gear (40) is rotatably connected, a first connection section (13) connected with the front cover (20) and allowing the second bevel gear (40) geared with the : first bevel gear (30) to pass there through, and a rotation shift space (14) in which a pair of bevel gears pivot, wherein the rotation shift space (14) is surrounded by three areas of the steering input section (11), the output support section (12) and the first connection section (13), wherein rotation directions of the first bevel gear (30) and the second bevel gear (40) are equal.
2. The steering bevel gear assembly constituting a gear apparatus according to claim 1, wherein the front cover (20) comprises a steering output section (21) rotatably placed through which the second bevel gear (40) passes, and a bevel gear through-hole (23) connected with the gear case (10) and allowing the second bevel gear (40) geared with the first bevel gear (30) to pass there through, and the front cover (20) and the gear case (10) are made by casting
2 en aluminum material - on
3. The steering bevel gear assembly constituting a gear apparatus according to claim 2, , wherein the first bevel gear (30) comprises a first bevel gear shaft (31) rotatably placed o through a steering input section (11), and a first bevel gear teeth (32) connected on one end of - the first bevel gear shaft (31), - the second bevel gear (40) comprises a second bevel gear shaft (41) rotatably placed - through the steering output section (21), and a second bevel gear teeth (42) connected on one < end of the second bevel gear shaft (41), and - the second bevel gear teeth (42) receives the force from the first bevel gear teeth (32) and outputs in the direction of decreasing diameter in truncated cone shape of the second bevel gear teeth (42).
4, The steering bevel gear assembly constituting a gear apparatus according to claim 1, wherein the second bevel gear (40) operates with a rear end supported in the gear case (10) and a front end supported on the steering output section (21).
PH12017000327A 2017-11-17 2017-11-17 Steering bevel gear assembly constituting gear apparatus PH12017000327A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PH12017000327A PH12017000327A1 (en) 2017-11-17 2017-11-17 Steering bevel gear assembly constituting gear apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PH12017000327A PH12017000327A1 (en) 2017-11-17 2017-11-17 Steering bevel gear assembly constituting gear apparatus

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PH12017000327A1 true PH12017000327A1 (en) 2019-06-10

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