CN2507225Y

CN2507225Y - Small hillside field tillage dragger

Info

Publication number: CN2507225Y
Application number: CN 01240431
Authority: CN
Inventors: 刘远清; 梁治斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-21
Filing date: 2001-05-21
Publication date: 2002-08-28
Anticipated expiration: 2011-05-21

Abstract

The utility model relates to a small-sized draw machine of hillside fields farming which comprises a motor, a gear box, two tractions, and the lifting gearing of traction. The chain-driven connection is provided between the gear box and the traction, the lifting gearing comprises a rotation shaft driven by a hand-operated device, gear wheels which are arranged on two ends of the rotating shaft, and toothed racks which are engaged with the gear wheels, wherein two toothed racks are separately arranged on the two sides of the rotation shaft and are sleeved in the guiding sleeve of the rotating shaft, the lower portions of the toothed racks are sleeved on the wheel shafts of the tractions, the wheel shafts of the tractions are sleeved at the swing arm which sets the output shaft of the gear box as a rotating center. When the hand-operated device drives the rotation shaft to rotate, one of the left and the right tractions rises while the other falls.

Description

Small-sized hillside fields farming hauling machine

The utility model belongs to agricultural machinery, is a kind of small-sized hillside fields farming hauling machine that is mainly used in hillside.

Present small farm farming mainly be the hand steered machine that drags with two-wheeled as traction power machinery, it is simple to operate flexibly, is applicable to the farming in fritter field.But in the considerable arable land of China is the hillside fields, and the arable land gradient that has is also bigger.With regard to existing hand tractor, because its axletree is a dead axle, wheelspan is less in addition, the body center of gravity is higher, so very easily overturn when the cross running of slope.Owing to above reason, China's agricultural hillside fields farming at present and crop transportation still are traditional manual operations basically, and existing hand tractor is difficult to bring into play in this class slope its due effect.

The purpose of this utility model provides a kind of small-sized hillside fields farming hauling machine, and it can make its left and right road wheel lifting easily, to adapt to the needs at the hillside fields cross running.

The solution that realizes the utility model purpose is: the small-sized hillside fields farming hauling machine that is provided, comprise engine, gearbox and two road wheels of being located on the frame, and wherein the output shaft of gearbox links by chain-drive mechanism and road wheel.Improvements of the present utility model are: the elevating mechanism that is provided with an aforementioned road wheel, the rotating shaft that this elevating mechanism is driven by hand-operated mechanism, two are contained in the gear at these rotating shaft two ends respectively and form with two tooth bars of aforementioned two gears engaged respectively, its middle rack is arranged in the fairlead that is sleeved in the aforementioned rotating shaft, the lower end of tooth bar is sleeved on the wheel shaft of road wheel, from axially, two tooth bars lay respectively at the both sides of aforementioned rotating shaft; The axle sleeve of aforementioned road wheel is contained in an end of rocking arm, and the other end of rocking arm is sleeved on the output shaft of gearbox.That is, by gear one liter of left and right two tooth bar, are fallen when hand-operated mechanism drives the rotating shaft rotation, thereby drive a road wheel liter, another road wheel falls.Like this, hauling machine just can be at the hillside fields cross running.

Aforesaid hand-operated mechanism can be the bevel gear transmission mechanism, but worm-and-wheel gear preferably.

Hand-operated mechanism of the utility model employing drives one liter of two road wheel, simultaneously and falls, and road wheel is installed in can be on the rocking arm that output shaft of gear-box rotates, not only simplified drive mechanism, and the structure that makes complete machine is compact more, volume is little, flexible to operation.

Below in conjunction with accompanying drawing content of the present utility model is described in detail.

Fig. 1 is the structure diagram of an embodiment of the utility model.

Fig. 2 is the transmission schematic diagram of Fig. 1 elevating mechanism.

Fig. 3 is the installation matching chart of Fig. 1 middle rack, gear.

Fig. 4 is the wheel week structure chart of road wheel.

As shown in Figure 1 and Figure 2: this hauling machine mainly is made up of engine 1, gearbox 2, road wheel and elevating mechanism thereof.Engine 1 adopts the gasoline engine of fraction horsepower, links by chain-drive mechanism 11 between the power shaft of its output shaft and gearbox 2.Gearbox 2 is two ends output, and two

output shafts

21,22 drive left and

right road wheel

31,32 respectively by chain-drive mechanism 23,24.The

wheel shaft

33,34 of left and right road wheel is sleeved on an end of rocking

arm

35,36, and the other end of two rocking

arms

35,36 is set in again on the

output shaft

21,22 of gearbox.So two road wheels can be done upper and lower swing around the

output shaft

21,22 of gearbox 2.The elevating mechanism of road wheel is made up of worm-and-wheel gear and pinion and rack.Worm screw 41 is driven by handle 42, and the axle of worm gear 43 44 stretches out to two ends, and

gear

45,46 is equipped with at its two ends, they respectively with 47,48 engagements of two tooth bars, but the orientation of engagement is opposite.That is, from axially, one of them tooth bar is positioned at the left side of worm-wheel shaft 44, and another tooth bar is positioned at the right side of worm-wheel shaft 44.So when worm-wheel shaft 44 driven

gears

45,46 rotated, a tooth bar rose, and another tooth bar descends.The lower end of two

tooth bars

47,48 is set on the

wheel shaft

33,34 of road wheel.Its top places fairlead 51, their installation fit structure as shown in Figure 3: fairlead 51 should promptly can rotate around worm-wheel shaft 44 around the axle of gear 47.This example is that fairlead 51 is connected on the adapter sleeve 52, so when gear 45 drove the upper and lower motion of tooth bar 47, tooth bar 47 can rotate around worm-wheel shaft 44 again.During actual design, 47 of tooth bars just are processed into tooth at the section with gears engaged, and remainder can be polished rod.When handle 42 drives worm screw 41, a rising in two

tooth bars

47,48, another decline, and then drive road wheel and rise, another road wheel descends, and body still can keep level, thereby has guaranteed the stability of this hauling machine at the hillside fields cross running.Also be provided with the hanger 6 and the handrail 7 of animal-drawn tillage implement on the body of this example.

The road wheel of hauling machine can adopt structure as shown in Figure 4: be provided with anti-sunken, antiskid claw the wheel week of road wheel, this prevents falling into, antiskid claw is made up of outer wing 81 plates, the wing plate 82 that is positioned at the road wheel inboard and the gripper shoe 83 that are positioned at the road wheel outside, wherein gripper shoe was fixed on wheel week, one end of two wing plates is fixed in an end of gripper shoe, be " individual " font, the radially angle a of the crossing seamed edge of inside and outside wing plate and gripper shoe and road wheel is 15～40 °, its size should be determined according to the soil property situation, generally speaking, a angle is advisable with 25～30 °.In order further to increase the friction between road wheel and arable land, can make the length of the length of outer wing plate greater than interior wing plate.

This hauling machine not only can use in the slope, also can use on the level land, because volume is little, in light weight, so be particularly suitable for the farming operation in mountain area.

Claims

1, a kind of small-sized hillside fields farming hauling machine, comprise the engine (1) that is located on the frame, gearbox (2) and two road wheels (31,32), the output shaft (21 of gearbox wherein, 22) by chain-drive mechanism (23,24) link with road wheel, it is characterized in that being provided with the elevating mechanism of an aforementioned road wheel, the rotating shaft (44) that this elevating mechanism is driven by hand-operated mechanism, two gears (45 that are contained in these rotating shaft two ends respectively, 46) and respectively with two tooth bars (47 of aforementioned two gears engaged, 48) form, its middle rack is arranged in the fairlead (51) that is sleeved in the aforementioned rotating shaft, the lower end of tooth bar is sleeved on the wheel shaft of road wheel, from axially, two tooth bars (47,48) lay respectively at the both sides of aforementioned rotating shaft (44); The axle sleeve of aforementioned road wheel is contained in an end of rocking arm (35,36), and the other end of rocking arm is sleeved on the output shaft of gearbox (21,22)

2, hauling machine as claimed in claim 1 is characterized in that said hand-operated mechanism is the bevel gear transmission mechanism.

3, hauling machine as claimed in claim 1 is characterized in that said hand-operated mechanism is a worm-and-wheel gear.

4, as claim 1 or 3 described hauling machines, it is characterized in that anti-sunken, the antiskid claw of being provided with in wheel week of said road wheel, this prevents falling into, antiskid claw is made up of the outer wing plate (81), the wing plate (82) that is positioned at the road wheel inboard and the gripper shoe (83) that are positioned at the road wheel outside, wherein gripper shoe was fixed on wheel week, one end of two wing plates is fixed in an end of gripper shoe, be " individual " font, the radially angle a of the crossing seamed edge of inside and outside wing plate and gripper shoe and road wheel is 15～40 °.

5, hauling machine as claimed in claim 4 is characterized in that the length of the length of said outer wing plate (81) greater than interior wing plate (82).

6, hauling machine as claimed in claim 5 is characterized in that said angle a is 25～30 °.