KR101714532B1

KR101714532B1 - Steering system of agricultural cultivator

Info

Publication number: KR101714532B1
Application number: KR1020150142611A
Authority: KR
Inventors: 박창현; 이기호; 노태균
Original assignee: 박창현; 이기호; 노태균
Priority date: 2015-10-13
Filing date: 2015-10-13
Publication date: 2017-03-09

Abstract

The present invention relates to a steering apparatus for an agricultural management apparatus and is characterized in that in a state where the axles 18 and 20 are coupled to the left and right coupling pipes 46 and 48 of the axle sprocket 16 connected to the engine 14, The balls 22 are inserted into the engaging grooves 58 and 60 of the connecting portions 54 and 56 of the axles 18 and 20 through the plurality of engaging holes 42 and 44, The clutch cones 38 and 40 having the concave grooves 24 and the right and left axles 18 and 20 respectively have the concave grooves 70 and 72 and the support grooves 74 and 76, 28 so that the elasticity of the springs 26 and 28 and the sliding operation of the clutch cones 38 and 40 by the clutch claws 34 and 36 connected to the operating lever 32 of the handle 30 The power is transmitted or blocked when the support jaws 74 and 76 and the concave grooves 70 and 72 are selectively brought into contact with the balls 22 and 24 so that the structure is simplified without any unnecessary clearance It allows the operation to be done smoothly and smoothly, Increasing the force would have to give the job to maximize the efficiency of the manager (A).

Description

[0001] STEERING SYSTEM OF AGRICULTURAL CULTIVATOR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a steering apparatus for an agricultural management apparatus, and more particularly, to a steering apparatus for an agricultural management apparatus, which can simplify a structure,

Generally, the manager of the agricultural equipments transmits the power generated by the engine to the left and right wheels equally, and when turning, the power of the inner wheel is cut off so that the direction change is smoothly performed.

With respect to such a steering device for an agricultural management device, there has already been provided a 'differential device of a small agricultural management device' of Patent Registration No. 10-0950775.

However, in the differential device of the agricultural management apparatus, the gears of the independently rotating left and right axles are engaged with each other through the planetary gears provided on the other axle, and the spline coupled to the one axle, And is configured to be engaged with or separated from the main shaft through a rotating body that slides leftward and rightward by a ball provided between the operating handle and the return spring while being rotated, In consideration of the fact that the manufacturing cost is increased during fabrication and the fault occurrence rate is very high, especially because the characteristics of the small-sized management device can not secure a wide installation space of the differential device, it is possible to combine several parts in a narrow space, To transmit or block power to La motorized ago Calendar weakened lead to deterioration of the manager, so there needs to be improved for it.

Patent No. 10-0950775 'Differential device of small agricultural management device'

SUMMARY OF THE INVENTION It is an object of the present invention to provide a steering apparatus for an agricultural management apparatus capable of simplifying a structure while allowing an operation to be performed smoothly and smoothly, and maximizing a power transmission force during power transmission.

In order to achieve the above object, the steering apparatus for an agricultural management apparatus according to the present invention is characterized in that, in a state in which left and right axle connecting portions each having a plurality of engaging grooves are engaged with right and left coupling pipes of an axle sprocket, And the balls are engaged with the supporting jaws of the clutch cones connected to the operating levers. When the balls are engaged with the operating levers, the power is transmitted and the ball is driven by the operation of the clutch cones by the operating levers. And the power is cut off when it faces the groove.

Since the configuration for transmitting or blocking the power of the axle sprocket 16 to the right and left axles 18 and 20 is constituted independently of the left and right axes, it is possible to reduce manufacturing cost during manufacture, The clearance can be minimized so that the noise can be reduced during operation and the service life can be ensured by alleviating the impact applied to the components. Particularly, the left and right axles 18 (20 Is made up of a plurality of balls 22 and 24 which are prevented from being separated by the cylindrical clutch cones 38 and 40 respectively so as to have a strong power transmitting force so that the operational efficiency of the manager A It is possible to maximize the effect.

Fig. 1 is a side view of an agricultural management apparatus to which the present invention is applied.
Figure 2: Side view of the present invention
3: sectional configuration of the present invention
Figure 4: Lie-down perspective view of the present invention
Figure 5: Partial maritime attempt of the present invention
Fig. 6 is a cross-sectional view of the main part showing the power transmission of the present invention
Fig. 7 is a cross-sectional view of the main part showing the power interruption of the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate like elements in the drawings, It will be omitted for the sake of clarity.

3 is a cross-sectional view of the present invention, in which the steering apparatus 10 of the agricultural management apparatus A according to the present invention comprises: The axle sprocket 16 connected to the engine 14 is positioned at an inner central portion of the transmission case 12 and the axles 18 and 20 are coupled to both sides of the axle sprocket 16, A plurality of balls 22 and 24 coupled between the axle sprocket 16 and the left and right axles 18 and 20 and a pair of springs 26 and 28 So that the power is transmitted or cut off by the clutch cones 38 and 40 that are slidably operated by the clutch claws 34 and 36 connected to the left and right operating levers 32 on the handle 30 side .

FIG. 4 is a perspective view of the present invention. FIG. 5 is a perspective view of the present invention, in which the axle sprocket 16 has its axle pin 41 protruding from both sides thereof, A coupling pipe 46, 48 is formed by protruding and forming a plurality of locking holes 42, 44 while keeping the axle pin 41 at an equal interval.

Each of the left and right axles 18 and 20 is provided with an engaging groove 50 and 52 for engaging the axle pin 41 at an inner central portion thereof and a connecting portion 54 having a diameter larger than that of the axle portion at its inner end, A plurality of engaging grooves 58 and 60 facing the engaging holes 42 and 44 of the coupling pipes 46 and 48 of the axle sprocket 16 are rotatably engaged with the engaging grooves 58 and 60, And a latching frame 62 (64) for latching the spring 26 (28) is formed at the center of the latching protrusion.

At this time, both side walls of the engaging grooves 58, 60 formed in the connecting portions 54, 56 of the left and right axles 18, 20 are widened toward the outer side from the center of the axles 18, 20 It is preferable to have an inclined surface so that the balls 22 and 24 can be smoothly engaged and disengaged.

The balls 22 and 24 that transmit or block the power of the axle sprocket 16 to the left and right axles 18 and 20 are spaced apart from the axles 42 and 44 of the left and right axle sprockets 16, And the connecting portions 54 and 56 of the axles 18 and 20 are engaged with the coupling pipes 46 and 48 of the axle sprocket 16, Is configured to be loosely coupled to the engaging grooves 58 and 60 of the connecting portions 54 and 56 of the left and right axles 18 and 20 through the engaging holes 42 and 44. [

The left and right springs 24 and 26 are fitted to the left and right axles 18 and 20 so that the clutch cones 38 and 40 are engaged with the hooks 62 and 64 of the axles 18 and 20, So as to give an elastic force to the surface.

The left and right clutch cones 38 and 40 each have an engaging hole for engaging the axles 18 and 20 inside the engaging recesses 66 and 68 for supporting the springs 26 and 28, 64, 66, and 68, which are formed in this order by the engaging projections 70, 72, and the supporting jaws 74, 76 in order to engage with the axles 18, 20 through the engaging holes, The spring 26 and spring 28 are resiliently mounted and the sliding contact between the grooves 70 and 72 and the support claws 74 and 76 during the sliding operation by the springs 26 and 28 and the clutch claws 34 and 36 Is selectively arranged to face the balls 22 and 24 so that the power of the axle sprocket 16 is transmitted to or blocked from the axles 18 and 20.

The left and right clutch claws 34 and 36 are connected to the transmission case 12 through the shaft holes 78 and 80 with shaft pins so that the upper connecting portions are respectively connected to the left and right operating levers 32, And the pressing portions 82 and 84 at the lower end thereof are brought into contact with the outer side portions of the clutch cones 38 and 40 so that the clutch cones 38 and 40 are slidably operated.

Therefore, the present invention can simplify the structure since the structure for transmitting or blocking the power of the axle sprocket 16 connected to the engine 14 to the left and right axles 18 and 20 is simple independently of left and right, (A) can be reduced and the playability can be minimized, so that a flexible and smooth operation can be expected.

The left and right clutch cones 38 and 40 of the operating lever 32 for forward movement of the management device A are respectively connected to the left and right axles 18 and 20 via a spring 26 of the left and right axles 18 and 20 through the engaging holes 42 and 44 of the axle sprocket 16 so that the supporting jaws 74 and 76 slide in the outward direction by the elastic force of the left and right axles 18 and 26, The power of the axle sprocket 16 connected to the engine 14 is prevented from being transmitted to the balls 22 and 24 To the left and right axles 18 and 20 so that the forward operation of the manager A is performed.

At this time, the balls 22 and 24 for transmitting the power of the axle sprocket 16 to the left and right axles 18 and 20 are formed on the right and left sides, respectively, and supported by the cylindrical clutch cones 38 and 40, So that the power transmitting force to the left and right axles 18 and 20 can be increased and the operation efficiency of the manager A can be maximized.

3, when the left and right operating levers 32 of the handle 30 are operated, the operation lever 32 and the clutch cone (not shown) The clutch cone 38 urges the clutch cone 38, which is urged by the spring 26 in a resiliently supported manner, to the inside of the clutch cone 38, The balls 22 on the inner side of the support jaw 74 face the ball 22 so that the ball 22 is released from the engagement groove 58 of the axle 18 when the axle sprocket 16 rotates, The power of the corresponding axle 18 is interrupted and the direction is changed.

Even when the right and left axles 18 are switched in direction by power interruption, the balls 22 are easily separated by the inclined surfaces of the engagement grooves 58 of the axle 18, It becomes possible.

As described above, the present invention is not limited to the above-described embodiments and the accompanying drawings, and various changes, substitutions and alterations can be made within the scope of the present invention without departing from the technical idea of the present invention. It will be obvious to those skilled in the art within the scope of the invention to which the invention belongs.

(A) - Agricultural management (10) - Steering device
(12) - transmission case (14) - engine
(16) - Axle sprocket (18) (20) - Axle
(22) (24) - Ball (26) (28) - Spring
(30) - Handle (32) - Operation lever
(34) (36) - Clutch hook (38) (40) - Clutch cone
(41) - Axle pin (42) (44) - Clamping ball
(46) (48) - Coupling pipe (50) (52) - Coupling groove
(54) (56) - connecting portion (58) (60) - engaging groove
(62), (64), (66), (68), and (70)
(74) (76) - a supporting jaw (78) (80) - a shaft
(82) (84) -Pressing section

Claims

And a coupling pipe 46 and 48 having a plurality of engaging holes 42 and 44 formed at both sides of the management unit A and located at the inner center of the transmission case 12 and protruding from the engine 14, A sprocket 16;
Are coupled to the coupling pipes 46 and 48 of the differential sprockets 16 through connecting portions 54 and 56 having a plurality of locking grooves 58 and 60 respectively and at the center portion thereof with locking levers 62 and 64, Left and right axles 18,
And is engaged with the engagement grooves 58 and 60 of the left and right axles 18 and 20 via the engagement holes 42 and 44 of the axle sprocket 16 to thereby control the power of the axle sprocket 16 Left and right balls (22) (24) transmitting to the axle (18) (20);
Left and right clutch cones 38 and 40 that are resiliently mounted on the left and right axles 18 and 20 by springs 26 and 28 to control the balls 22 and 24;
The left and right operating levers 32 of the handle 30 are operated to selectively engage the clutch cones 38 and 40 by the selective operation of the operating lever 32 for switching the direction, (34) and (36).

The vehicle according to claim 1, wherein the axle sprocket (16) and the left and right axles (18) and (20) (52) to be engaged with each other.

The power tool as claimed in claim 1, wherein the left and right clutch cones (38) and (40) are formed such that the grooves (70) and (72) And the steering angle of the steering wheel is changed.