CN102887189A - Double-tail-wheel traveling mechanism of walking tractor - Google Patents

Abstract

Walking tractor double tail wheel walking mechanism: mainly composed of walking tractor longitudinal beam 1, lifting cylinder sleeve 2, connecting card 3, lifting cylinder 4, left and right balance spring 5, connecting pin 6, card slot 7, limit block 8 , center beam 9, left and right tail wheel beam 10, tail wheel 11 are formed. It is suitable for replacing the single tail wheel of the original walking tractor, and the matching walking tractor is equipped with various agricultural implements to carry out cross-ridge mechanized walking operations in the planting and production of ridged crops. It is a simple, compact, safe and applicable walking mechanism.

Description

Walking Tractor Double Tail Wheel Traveling Mechanism

technical field

The invention relates to the field of agricultural machinery, in particular to a walking mechanism with double tail wheels for supporting agricultural implements of a walking tractor and adapted to work on farmland ridges.

Background technique

The current walking tractor is driven by a single tail wheel, and the lifting and lowering adopts the structure of screw lifting. It is necessary to turn the screw manually to achieve the purpose of lifting the tail wheel. , and even cause overturning, it is not suitable for cross-ridge walking operations of crops with ridges, such as ridge breaking, fertilization, and other ridge walking operations in sugarcane root cane fields. This restricts the application range of walking tractors. Although there are a large number of walking tractors in the sugarcane area, there are no supporting tools for breaking ridges and fertilizing. The purpose of the present invention is to aim at the lack of single-tail wheel walking of the above-mentioned existing walking tractors, so that the matching walking tractor agricultural implements are suitable for cross-row walking operations of crops with ridges, and provide a simple, compact and safe double-tail wheel. Wheel walking mechanism.

Contents of the invention

The realization scheme of the object of the present invention is that the provided walking tractor double-tail wheel traveling mechanism replaces the original walking tractor single tail wheel, which is suitable for cross-row walking operation of crops with ridges. It is mainly composed of walking tractor longitudinal beam, lifting cylinder sleeve, connecting card, lifting cylinder, left and right balance tension springs, connecting pins, card slots, limit blocks, middle beam, left and right tail wheel beams, and tail wheel. A connecting spring hole is provided at an appropriate position under the longitudinal beam of the walking tractor; a card slot is welded in the middle of the center beam, and a connecting pin hole is opened in the card slot. Limiting blocks are welded on the left and right sides of the center beam. The right outer end has a connection hole with the tail wheel beam; the left and right tail wheel beams are symmetrical to the left and right, and pedals are welded on the upper and rear sides of the left and right appropriate positions, and there are long holes for connecting with the middle beam at the left and right appropriate positions. There are left and right balance tension spring holes at the end, and a concave vertical plate is welded downward, and there is an open side hole under the concave vertical plate; the tail wheel has a bolt shaft; the lifting cylinder is set in the lifting cylinder sleeve, and the lifting cylinder The end is a single earring; the sleeve of the lifting cylinder sleeve is set on the tail wheel sleeve of the walking tractor and is clamped and fixed by connecting clamp bolts; The bolt shaft is clamped on the opening side hole of the concave vertical plate under the left and right tail wheel beams and fixed with nuts. One end of the left and right tail wheel beams is installed on the two ends of the middle beam, and the width of the two tail wheels according to the agricultural operation It is required to fix the connection with bolts through the connection holes after adjustment; one end of the left and right balance tension springs is connected to the left and right tail wheel beams and the left and right balance tension spring holes, and the other end is connected to the spring holes under the longitudinal beam of the walking tractor.

When the walking tractor is working across ridges with ridge crops, the person sits on the walking tractor and can operate the hydraulic cylinder to lift and lower through the hydraulic system to adjust the working depth of the machine required by agronomy. When going straight, people hold the hand of the walking tractor with both hands. The handle, through the balance spring, assists the left and right tail wheels to balance the straight line. When turning, you can control the steering and walking by operating the handle of the walking tractor and stepping on the left and right steering pedals of the steering double tail wheels. It can control the walking tractor to advance and turn on the ridge, so as to carry out various agricultural mechanization operations.

Accompanying drawing is the schematic diagram of walking tractor double tail wheel walking mechanism of the present invention,

Below in conjunction with accompanying drawing, the present invention is further described: as shown in the figure: provided walking tractor double tail wheel walking mechanism: mainly by walking tractor longitudinal beam 1, lifting oil cylinder sleeve 2, connecting card 3, lifting oil cylinder 4, Left and right balance pull spring 5, connecting pin 6, draw-in groove 7, limit block 8, center beam 9, left and right tail wheel beam 10, tail wheel 11 form. A connecting spring hole is provided at an appropriate position under the longitudinal beam 1 of the walking tractor; a card slot is welded in the middle of the middle beam 9, and a connecting pin hole is opened in the card slot, and a limit block is welded at an appropriate position on the left and right sides of the central beam; The left and right outer ends have connection holes with the tail wheel crossbeam 10; The middle beam 9 is connected with a long hole, and the end is opened with 5 holes for left and right balance tension springs, and a concave vertical plate is welded downward, and a side hole is opened under the concave vertical plate; the tail wheel 11 has a bolt shaft; the lifting cylinder 4 is set on Inside the lifting cylinder sleeve 2, the end of the lifting cylinder 4 is a single earring; the lifting cylinder sleeve 2 is set on the tail wheel casing of the walking tractor and is clamped and fixedly connected by the connecting card 3 bolts; the bottom end of the lifting cylinder 4 is tied with a single earring The middle beam 9 card slot hole is connected with the connecting pin 6; the tail wheel 11 is clamped on the left and right tail wheel cross beam 10 through the bolt shaft and fixedly connected with the nut on the opening side hole of the concave vertical plate under the left and right tail wheel cross beam 10. One end is installed on the two ends of the middle beam 9, and after adjusting according to the width requirements of the two tail wheels for agronomic operation, it is fixedly connected with bolts through its connecting holes; one end of the left and right balance tension springs 5 is connected to the left and right tail wheel crossbeams 10 or so On the 5 holes of the balance tension spring, the other end is connected on the lower connection spring hole of the side beam 1 of the tractor.

When the walking tractor is working across ridges with ridge crops, the person sits on the walking tractor and can operate the hydraulic cylinder to lift and lower through the hydraulic system to adjust the working depth of the machine required by agronomy. When going straight, people hold the hand of the walking tractor with both hands. The handle, through the balance spring, assists the left and right tail wheels to balance the straight line. When turning, you can control the steering and walking by operating the handle of the walking tractor and stepping on the left and right steering pedals of the steering double tail wheels. It can control the walking tractor to advance and turn on the ridge, so as to carry out various agricultural mechanization operations.

The double tail wheel walking mechanism of the walking tractor is replaced by the single tail wheel of the original walking tractor, and various agricultural machinery and implements are carried on the supporting walking tractor to carry out cross-ridge mechanized walking operations in the planting and production of ridged crops. The utility model is a simple, compact, safe and applicable walking mechanism, and has a good promotion and application prospect.

Claims (4)

1. Walking tractor double tail wheel walking mechanism includes: walking tractor longitudinal beam 1, lifting cylinder sleeve 2, connecting card 3, lifting cylinder 4, left and right balance spring 5, connecting pin 6, card slot 7, limit block 8, center beam 9, left and right tail wheel beam 10, tail wheel 11 are formed. 2. Walking tractor walking mechanism with double tail wheels is equipped with various agricultural machinery and implements to carry out cross-ridge mechanized walking operations in the planting and production of ridged crops. 3. The middle beam and the upright column (lift cylinder) of the walking tractor double tail wheel walking mechanism are connected by rubber shafts. The two tail wheels can walk in balance according to the height of the ridge bottom. There are up and down swing limits on both sides of the middle beam to prevent the two tail wheels from walking Due to the large bottom difference between the left and the left ridge when walking, the up and down swing angle of the two sides of the middle beam is large, and the tail wheel turns to one side, causing the car to roll over. 4. The middle beam of the double tail wheel walking mechanism of the walking tractor and the beam of the left and right tail wheels are equipped with a long hole fixing structure that can adjust the walking distance between the left and right tail wheels according to the distance of the ditch.

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