KR20160136117A - Cart for agriculture having limited slip differential - Google Patents

Cart for agriculture having limited slip differential Download PDF

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Publication number
KR20160136117A
KR20160136117A KR1020150069870A KR20150069870A KR20160136117A KR 20160136117 A KR20160136117 A KR 20160136117A KR 1020150069870 A KR1020150069870 A KR 1020150069870A KR 20150069870 A KR20150069870 A KR 20150069870A KR 20160136117 A KR20160136117 A KR 20160136117A
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KR
South Korea
Prior art keywords
lsd
driven gear
body frame
gear
differential limiting
Prior art date
Application number
KR1020150069870A
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Korean (ko)
Inventor
이동철
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이동철
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Publication date
Application filed by 이동철 filed Critical 이동철
Priority to KR1020150069870A priority Critical patent/KR20160136117A/en
Publication of KR20160136117A publication Critical patent/KR20160136117A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B51/00—Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus
    • A01B51/02—Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus propelled by a motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • F16H48/30—Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/18—Propelling the vehicle
    • B60Y2300/18175—Preventing, or responsive to skidding of wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/80—Control of differentials
    • B60Y2300/84—Differential locking

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Retarders (AREA)

Abstract

The present invention relates to an agricultural transportation vehicle having a differential limiting device, which comprises a body frame having a power source for supplying an electromotive force to the inside thereof, a loading box provided above the body frame for loading cargo, A cylinder which is connected to a vehicle body frame at one side and which is connected to a loading box so as to perform a dumping operation of the loading box; A pair of motors each of which is provided with a gear, and a second gear which is connected to the front and rear sides of the lower portion of the vehicle body frame and which is axially rotatably formed on a first side of a first driving shaft, A first driven gear connected to the second gear and receiving a rotational force is formed on one side of the first driven gear, And a pair of driven gears connected to each other by a cylindrical connecting shaft. The one end of the driven gear receives a rotational force from the driven gear and the other end of the driven gear is connected to the first driven gear A second driven gear having a projected LSD coupling hole and an engaging groove which is inserted inwardly from one side of the LSD coupling hole and the other outer peripheral surface of the second driven gear is formed into a cylindrical shape with an inner peripheral surface of the LSD coupling hole being spaced apart from the inner peripheral surface, The second drive shaft is provided with a second drive shaft having a sliding groove on the outer circumferential surface of the second drive shaft so that the first drive shaft is axially slidable along the sliding groove while the inner side is engaged with the sliding groove to transmit the rotational force, The LSD having a protruding portion is provided, and the bearing is inserted into the outer surface of the LSD A pair of differential limiting portions including an LSD guide for allowing the LSD to move from one side to the other side due to the operation of the lever provided on the outside while smoothly rotating the LSD from the inside; A control unit for controlling the forward and backward movement and stopping and speed control is provided on the inner side and a steering wheel is provided on the outer side of the steering wheel, As shown in FIG.

Description

{Cart for agriculture having limited slip differential}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an agricultural transportation vehicle having a differential limiting device, and more particularly to an agricultural transportation vehicle having a differential limiting device. More particularly, when one of the wheels of an agricultural transportation vehicle falls into a bad road, The present invention relates to an agricultural transportation vehicle having a differential limiting device that allows a worker to easily operate a differential limiting device to interrupt an idling of a wheel thereby allowing an agricultural transportation vehicle to easily escape from a bad route.

In general differentials, when the vehicle is turning, the left and right wheels rotate at different speeds and always transmit the same driving force to both wheels. Therefore, when driving on snowy roads, ice roads and muddy roads with low coefficient of friction, There is a serious drawback that the wheel is slipped and the wheel on the opposite side is stopped.

For example, when one of the wheels of a vehicle is slipped into a sand or mud pit, a puddle, a pothole, a bog, etc., the differential rotates the differential pinion gear to deliver the most power to the missing wheel, And power is hardly transmitted to the other wheel grounded on the road surface, so that a slip is generated by driving only the missing wheel which receives a lot of power. Because of this kinematic characteristic, the missing side wheels are getting more and more slippery, so that the vehicle can not travel while it can not get out.

By operating the differential limiting mechanism installed in the differential device, the transmission torque on the low-speed rotation wheel side is increased, the drive force on the road surface is effectively transmitted, the idling of the wheel on the road with low friction coefficient is prevented, A differential limiting device (hereinafter referred to as " differential restricting device ") for improving the turning performance of the vehicle by making it possible to ensure the driving force of the outer wheel of the turning even if the driving force of the inner wheel is lowered due to the load movement at the time of shifting Limited Slip Differential / No-Spin Differential) has been developed and widely applied to off-road vehicles, military vehicles, and RV vehicles.

The operating mechanism of the differential limiting device is a torque-responsive type in which the frictional clutch is pushed by a thrust force by the cam mechanism of the pinion shaft and is squeezed or when the worm gear is stuck, and a differential torque is generated between the left- A speed sensitive type that increases or decreases according to the rotation difference, and an electronically controlled type that continuously controls the differential limiting torque by electronic control.

However, such conventional differential limiting devices can secure the turning safety by increasing the climbing force on the unpacked road and the cornering force when turning, but there are limitations in escape ability from rough roads and bad roads, the structure is very complicated, There is a problem that it can not be applied to a place such as an agricultural transportation vehicle having a low production cost because of a considerably high problem.

Accordingly, there is a demand for an agricultural transportation vehicle having a differential limiting device that solves the above-described conventional problems.

Korean Patent Publication No. 10-2010-0117629 (Nov. 3, 2010) Korean Patent Publication No. 10-2012-0053001 (2012.05.24.) Korean Patent Publication No. 10-2012-0053002 (2012.05.24.)

SUMMARY OF THE INVENTION The present invention has been made to overcome the problems of the prior art as described above, and it is an object of the present invention to provide a method and apparatus for manufacturing an agricultural transportation vehicle which is manufactured at low cost considering frequency of use of a differential device, The present invention provides an agricultural transportation vehicle having a differential limiting device that allows the vehicle to escape.

In order to achieve the above-described object, the present invention provides a vehicle comprising: a body frame having a power source for supplying an electromotive force to the inside; a loading box provided above the body frame for loading cargo; A first gear connected to the vehicle body frame and connected to the loader so as to allow the loader to perform dumping operation; a first gear provided at the front and rear sides of the vehicle body frame for receiving electromotive force from the power source, A pair of motors provided respectively to the first frame and the second frame, and a second gear connected to the front and rear sides of the vehicle body frame, the second gear being installed on one side of a first driving shaft, A first driven gear connected to the second gear and receiving a rotational force is formed, And a pair of driven gears connected to each other through a cylindrical connecting shaft. The driven gear is provided with a rotational force transmitted from the driven gear to one side of the driven gear and an LSD A second driven gear having an engaging groove and an engaging recess which is inserted inwardly from one side of the LSD engaging hole, and the other outer peripheral face of the second driven gear is formed into a cylindrical shape with an inner peripheral face of the LSD engaging hole being spaced apart from the inner peripheral face of the LSD engaging groove, The second drive shaft is provided with a second drive shaft having a sliding groove on the outer circumferential surface of the second drive shaft. The second drive shaft is axially slidable along the sliding groove while the inner side is engaged with the sliding groove to transmit rotational force. The LSD having the protruding portion is provided, the bearing is inserted in the inner side of the outer surface of the LSD, A pair of differential limiting portions including an LSD guide for allowing the LSD to move from one side to the other side due to an operation of a lever provided on the outside while being smoothly rotated while being coupled to the first and second driving shafts of the differential limiting portion, A control unit for controlling forward and backward movement and stopping and speed control is provided on the inner side and a steering handle is provided on the outer side of the control frame for linkage with the wheels so that the wheels are pivotally connected through a connection bar, And a steering portion, wherein the differential limiting device is provided with a differential limiting device.

The agricultural conveyance vehicle having the differential limiting device according to the present invention is advantageous in that the operator can easily limit the differential during the idling of the wheels by a simple structure so that the agricultural conveyance vehicle can easily escape from the bad road. The loading box can be dumped so that it is easy to unload the load such as sand or gravel.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of an agricultural conveyance vehicle having a differential limiting device according to the present invention;
2 and 3 are schematic views of a differential limiting portion according to the present invention,
Fig. 4 is a schematic view showing the operation in which the loading box of the agricultural conveyance vehicle having the differential limiting device according to the present invention is pinched.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, an agricultural transportation vehicle having a differential limiting device according to the present invention includes a vehicle body frame 10 having a power source 12 for supplying an electromotive force to the inside thereof, (20) connected to the vehicle body frame (10) and having one side connected to the body frame (10) and the other side connected to the loading box (20) so that the loading box (20) And a pair of first and second gears 42 and 43 respectively provided at the front and rear sides of the lower portion of the vehicle body frame 10 to receive electromotive force from the power source 12 and to transmit rotational force to one side of the cylinder 30, And a second gear 52 connected to the front and rear sides of the lower portion of the vehicle body frame 10 and axially connected to the first driving shaft 51 having a cylindrical rotating force from the motor 40 And the other end of the second gear 52 A first driven gear 53 connected to the second gear 52 to receive a rotational force is formed and a rotational force is transmitted from the first driven gear 53 to the upper and lower portions of one side of the first driven gear 53, And a pair of driven gears 55 connected to each other by a cylindrical connecting shaft 54. A driven gear 55 is provided at one side of the driven gear 55 with a rotational force transmitted from the driven gear 55, And a second driven gear 58 having an engaging groove 57 that is inserted inward from one side of the LSD coupling hole 56. The other side of the second driven gear 58 is provided with an LSD And a second drive shaft 60 having a sliding groove 59 formed in a cylindrical shape spaced apart from the inner circumferential surface of the coupling hole 56 and being inserted into the other outer surface of the second drive shaft 60. The outer circumferential surface of the sliding groove 59 of the second drive shaft 60 The inner side is engaged with the sliding groove 59 while being axially slidable along the sliding groove 59, And an LSD 62 having a protrusion 61 protruding correspondingly to the concave groove 57 is provided on the other side of the LSD 62. A bearing is inserted into the outer surface of the LSD 62, A pair of differential limiting portions 50 having an LSD guide 64 for allowing the LSD 62 to move from one side to the other side due to the operation of the lever 63 which is smoothly rotated from the inside to the outside, A wheel 65 coupled to the first driving shaft 51 and the second driving shaft 60 of the restricting portion 50 and a second driving shaft 60 mounted to the rear of the vehicle body frame 10 via the connecting bar 72, A steering portion 70 linked to the wheel 65 such that the steering wheel 65 is pivoted and the control portion 74 for forward and backward movement and stopping and speed control is provided on the inner side and the steering wheel 76 is provided on the outer side, .

First, a vehicle body frame 10 having a power source 12 for supplying an electromotive force to the inside is provided.

Here, the power source 12 refers to a conventional battery, and is formed to be easily charged and used by using electric power of the home.

In addition, it is preferable that the power source 12 is provided in one or a plurality of the power sources 12 and is used depending on the usage purpose or the use time of the agricultural car 2. [

On the upper part of the body frame 10, a loading box 20 for loading cargo is provided.

At this time, a hook 86 formed to be bent rearward is formed at the lower rear of the loading box 20, and the hook 86 is hooked by the hook 90 to be described later, So as to prevent the loading box 20 from being dumped when the loading box 20 is dumped by a malfunction.

A cylindrical engaging rod case 91 is formed at the rear upper portion of the body frame 10 and elongated holes 92 are formed at one side of the engaging rod case 91 spaced inward from both sides of the engaging rod case 91, 92 are formed at both ends thereof with fixing grooves 93 extending downwardly respectively and a cylindrical engaging rod 94 slidable inside the engaging rod case 91 is formed inside the engaging rod case 91 And a latching portion 90 having a latching rod handle 95 formed on one side of the latching rod 94 and connected to the latching rod 94 and extending outwardly and engaged with the latching groove 93.

At this time, the latching part 90 moves the latching rod 94 provided inside the latching case 91 to the loading box 20 by moving the latching rod 94 backward by using the latching rod handle 95, And to prevent the loading box 20 from being dumped by moving the latching rod 94 to the front side.

A cylinder 30 connected to the vehicle body frame 10 and having one side connected to the body frame 10 and the other side connected to the loading box 20 for allowing the loading box 20 to perform dumping operation is provided.

The cylinder 30 is provided to be operated by a control unit 74 formed in the steering unit 70. The control unit 74 controls the dump operation of the loading unit 20 or the loading unit 20 ) To the home position.

In addition, both sides of the cylinder 30 are preferably hinged to the body frame 10 and the loading box 20 so as to be rotatably connected to the body frame 10 and the loading box 20, respectively.

A pair of motors 40 provided respectively at the front and rear sides of the lower portion of the vehicle body frame 10 to receive electromotive force from the power source 12 and to have a first gear 42 for transmitting rotational force to one side do.

At this time, it is preferable that the motor 40 uses a motor 40 that can perform normal rotation, reverse rotation, and speed control by the operation of the control unit 74.

The motor 40 is preferably configured to transmit power to both the front and rear sides using a pair of the motors 40. However, the motor 40 may be configured to transmit power to the front and rear using a single motor 40. [

And is transmitted through a second gear 52 which is connected to the front and rear sides of the lower portion of the vehicle body frame 10 and is axially installed on one side of a first driving shaft 51 having a cylindrical rotating force from the motor 40, A first driven gear 53 connected to the second gear 52 to receive a rotational force is formed on one side of the first driven gear 52 and a first driven gear 53 is provided on the upper and lower sides of one side of the first driven gear 53, And a pair of driven gears 55 connected to each other by a cylindrical connecting shaft 54. The driven gear 55 receives a rotational force from the driven gear 55 and is provided at one side A second driven gear 58 having an LSD coupling hole 56 protruding in a tubular shape and a concave groove 57 inserted inward from one side of the LSD coupling hole 56 is provided, One side of which is formed in a cylindrical shape with the other outer peripheral surface being spaced apart from the inner peripheral surface of the LSD coupling hole 56, A second drive shaft 60 having an inner sliding groove 59 is provided and an outer peripheral surface of the sliding groove 59 of the second driving shaft 60 is axially slidable along the sliding groove 59, And the other end of the LSD 62 has a protrusion 61 protruding corresponding to the recessed groove 57. The bearing is inserted into the outer surface of the LSD 62, A pair of differential limiting portions 50 having an LSD guide 64 for allowing the LSD 62 to move from one side to the other due to the operation of the lever 63 provided on the outside while smoothly rotating the LSD 62 from the inside, .

At this time, the differential restricting portion 50 stops the operation of the differential gear when the one of the wheels 65, which will be described later, of the agricultural vehicle 2 is moved during the operation of the agricultural carrier 2, The worker can easily operate the lever 63 to operate the differential restricting portion 50 so that the idling of the wheel 65 is blocked and the agricultural conveying vehicle 2 can easily escape from the bad road .

The differential limiter 50 includes a fixture 80 connected to the differential limiting unit 50 at one side spaced apart from the lever 63 of the LSD guide 64. The fixture 80, A projection 82 of the LSD 62 is connected to the LSD 62 so that the protrusion 61 of the LSD 62 is engaged with the concave portion of the LSD coupling hole 56 in accordance with the degree of manipulation of the lever 63 by the operator, So that the rotational force of the first drive shaft 51 is not transmitted to the second drive shaft 60. The first drive shaft 51 is connected to the second drive shaft 60, And the lever 63 may be operated by connecting a lever cylinder 84 operated by the control unit 74 to one side of the lever 63 of the LSD guide 64. [

And a wheel 65 coupled to the first drive shaft 51 and the second drive shaft 60 of the differential limiting unit 50, respectively.

At this time, the wheel 65 may be connected to the first drive shaft 51 and the second drive shaft 60 by a universal joint so that the drive force is constantly transmitted even when the wheel 65 is turned.

And is linked to the wheel 65 so as to pivot the wheel 65 through the connecting bar 72 so as to be pivoted rearward of the vehicle body frame 10, And a steering portion 70 having a steering handle 76 on its outer side is provided.

At this time, the connecting bar 72 provided to the steering unit 70 is linked to one side of the wheel 65 so as to be pivoted laterally according to the operation of the steering wheel 76 of the operator.

The agricultural conveyance vehicle having the above-described differential limiting device of the present invention can be constructed in a simple structure so that when any one of the wheels 65 of the agricultural conveyance vehicle 2 falls into a bad road during the operation of the agricultural conveyance vehicle 2, The operator can easily operate the lever 63 to operate the differential restricting portion 50 so that the idling of the wheel 65 is blocked and the agricultural conveying vehicle 2 can be easily operated There is an advantage to be able to escape the evil.

In addition, since the loading box 20 can be dumped by a simple operation of an operator, there is also an advantage in loading unloaded cargo such as sand or gravel.

2: Agricultural truck 10: Body frame
12: Power source 20:
30: cylinder 40: motor
50: differential limiting portion 70: steering portion
80: fixture 90:

Claims (5)

A vehicle body frame 10 provided with a power source 12 for supplying an electromotive force to the inside thereof;
A loading box 20 provided above the vehicle body frame 10 for loading cargo;
A cylinder 30 connected to the body frame 10, one side connected to the body frame 10 and the other side connected to the loading box 20 to allow the loading box 20 to dump;
A pair of motors (40) provided respectively at the front and rear sides of the vehicle body frame (10) to receive electromotive force from the power source (12) and to have a first gear (42)
And is transmitted through a second gear 52 which is connected to the front and rear sides of the lower portion of the vehicle body frame 10 and is axially installed on one side of a first driving shaft 51 having a cylindrical rotating force from the motor 40, A first driven gear 53 connected to the second gear 52 to receive a rotational force is formed on one side of the first driven gear 52 and a first driven gear 53 is provided on the upper and lower sides of one side of the first driven gear 53, And a pair of driven gears 55 connected to each other by a cylindrical connecting shaft 54. The driven gear 55 receives a rotational force from the driven gear 55 and is provided at one side A second driven gear 58 having an LSD coupling hole 56 protruding in a tubular shape and a concave groove 57 inserted inward from one side of the LSD coupling hole 56 is provided, One side of which is formed in a cylindrical shape with the other outer peripheral surface being spaced apart from the inner peripheral surface of the LSD coupling hole 56, A second drive shaft 60 having an inner sliding groove 59 is provided and an outer peripheral surface of the sliding groove 59 of the second driving shaft 60 is axially slidable along the sliding groove 59, And the other end of the LSD 62 has a protrusion 61 protruding corresponding to the recessed groove 57. The bearing is inserted into the outer surface of the LSD 62, A pair of differential limiting portions 50 having an LSD guide 64 for allowing the LSD 62 to move from one side to the other due to the operation of the lever 63 provided on the outside while smoothly rotating the LSD 62 from the inside, );
A wheel 65 coupled to the first drive shaft 51 and the second drive shaft 60 of the differential limiting unit 50;
A control unit 74 for controlling the forward and backward movement and stopping and speed control of the vehicle body frame 10 so as to be pivoted rearward of the vehicle body frame 10 and linked with the wheels 65 so as to pivot the wheels 65 through the connecting bars 72, And a steering portion (70) having a steering handle (76) provided on an outer side of the steering wheel (76). The method according to claim 1,
The LSD guide 64 has a fixing part 80 connected to the differential limiting part 50 at one side spaced apart from the lever 63 and a spring 82 is connected between the fixing part 80 and the lever 63 And the differential limiting device is provided with the differential limiting device. The method according to claim 1,
Characterized in that a lever cylinder (84) operated by a control unit (74) is connected to one side of a lever (63) of the LSD guide (64). The method according to claim 1,
And a stopper (86) formed to bend backward is formed at the lower rear of the loading box (20). The method according to claim 1,
A cylindrical engaging rod case 91 is formed at the rear upper portion of the body frame 10 and elongated holes 92 are formed at one side of the engaging rod case 91 spaced inward from both sides of the engaging rod case 91, 92 are formed at both ends thereof with fixing grooves 93 extending downwardly respectively and a cylindrical engaging rod 94 slidable inside the engaging rod case 91 is formed inside the engaging rod case 91 And a latching part 90 formed on one side of the latching rod 94 and having a latching rod handle 95 connected to the latching rod 94 and extending outwardly and engaged with the latching groove 93 With a differential limiting device.
KR1020150069870A 2015-05-19 2015-05-19 Cart for agriculture having limited slip differential KR20160136117A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190131369A (en) 2018-05-16 2019-11-26 김치옥 A electric vehicle for agricultural with limited slip differential
KR20230073764A (en) 2021-11-19 2023-05-26 주식회사 부경전기차 An electric motor truck equipped with a limited slip differential device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190131369A (en) 2018-05-16 2019-11-26 김치옥 A electric vehicle for agricultural with limited slip differential
KR20230073764A (en) 2021-11-19 2023-05-26 주식회사 부경전기차 An electric motor truck equipped with a limited slip differential device

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