CN2850221Y

CN2850221Y - Automatic mechanical overturn mechanism of reversible plow

Info

Publication number: CN2850221Y
Application number: CN 200520128335
Authority: CN
Inventors: 闫前进
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-25
Filing date: 2005-11-25
Publication date: 2006-12-27
Anticipated expiration: 2015-11-25

Abstract

The utility model relates to an automatic mechanical overturn mechanism of a turnover plow, particularly an agricultural implement, which is mainly composed of a spring pin, a draw plate, a clutch, a ratchet pawl, a shifting fork assembly, an upper draw rod, a suspension structure, a pin seat, a machine frame, etc. The utility model is characterized in that the shifting fork assembly is installed on the lower side of the upper draw rod; when a plow body is lifted, the shifting fork assembly is pressed by the upper draw rod; the shifting fork assembly drives a transmission mechanism to make the spring pin actuate; the shifting fork assembly is composed of a spring, a connecting rod and a shifting pin shaft; the transmission mechanism is composed of the clutch, the ratchet pawl, a rotating shaft and the draw plate; the shifting pin shaft of the shifting fork assembly drives the ratchet pawl in the clutch to rotate and simultaneously drives the clutch and the rotating shaft to rotate; then, the draw plate is driven to move outwards; one end of the spring pin is fixedly connected with the draw plate, and the other end of the spring pin penetrates through the machine frame to cooperate with the pin seat; when the draw plate moves outwards, the spring pin is driven to move out of the pin seat; under the action of eccentric force, the turnover of the plow body is realized. Because the utility model adopts the full mechanical structure, the utility model has the advantages of low cost, simple structure, easy maintenance, convenient operation, flexible operation, safe operation, reduction of the labor intensity of operators and improvement of work efficiency.

Description

Pivot plow machinery automatic turning mechanism

One, technical field

The utility model relates to a kind of farm machinery, exactly is a kind of pivot plow machinery automatic turning mechanism.

Two, background technology

Continuous improvement along with the village economic condition, mechanization degree improves constantly, agricultural cultivating technology is also in continuous development, the shortcoming of one way plough manifests day by day, the use of pivot plow is more and more general, particularly, more demonstrate the superiority of pivot plow: promptly to a rollover soil, no dead furrow, descending grade, easy irrigation, save time, fuel-efficient, laborsaving, efficient in big field and hillside fields.The switching mechanism of at present common pivot plow mainly contains three types, i.e. hand turnover mechanism, air pressure switching mechanism and hydraulic turnover mechanism.And these three kinds of switching mechanisms respectively have deficiency, and manually the turning operation handle is long, and the tractor of band driver's cabin can't use, and labour intensity is big, and is not easy to operate, needs skilled tractor driver; Air pressure is close with the hydraulic principle, needs a cover air pressure and a hydraulic circuit respectively, complex structure, cost height, maintenance difficulty.

Three, summary of the invention

The purpose of this utility model is to utilize the hydraulic lifting system of former tractor, designs a kind of mechanical automatic turning mechanism of pivot plow, and this cover mechanism can overcome the deficiency that prior art exists.

Implementation procedure of the present utility model is such: it mainly comprises: spring catch, upper connecting rod, hitch, turnover bracket, key seat, frame, trip shaft, plow frame front-axle beam, upper connecting rod is connected on the suspended structure, hitch is installed on the turnover bracket through a turning cylinder, it is characterized in that: have a shifting fork assembly to be located at below the upper connecting rod, be connected with turnover bracket through a bearing pin, shifting fork assembly links to each other with resilient key through a transmission mechanism, upper connecting rod presses shifting fork assembly, and shifting fork assembly drives the resilient key action through transmission mechanism.Shifting fork assembly can and be stirred bearing pin and form by spring, connecting rod, transmission mechanism can be made up of clutch, ratchet, rotating shaft, clutch is installed in stirs the bearing pin below, and ratchet is installed in the clutch and by a spring and keeps high-end trim, and the bearing pin of stirring of shifting fork assembly hooks ratchet; The clutch bottom is fixed with a rotating shaft one end, and the other end of rotating shaft is fixedlyed connected with an arm-tie; Resilient key one end is fixedlyed connected with arm-tie, and the sleeve pipe that the pin tongue of the other end passes on the frame is inserted in the key seat, and key seat is fixedly mounted on the plow frame front-axle beam.Other mechanical parts are same as the prior art.

Good effect of the present utility model is: adopt scientific and reasonable full mechanical, cost is low; Simple in structure, fault rate is low, and maintenance easily; Only need the pulling direction switch can realize that plough body rises and easy to operate, flexible, safety are carried out in upset synchronously; Reduce driver and crew's labour intensity, improved operating efficiency.

Four, description of drawings

Fig. 1 is a structural representation of the present utility model; Fig. 2 is the partial schematic diagram of clutch and resilient key; Fig. 3 is the left view of Fig. 2.

Five, embodiment

As shown in Figure 1, the utility model mainly comprises: resilient key 1, upper connecting rod 12, hitch 13, turnover bracket 15, key seat 20, frame 23, trip shaft 18, plow frame front-axle beam 19, upper connecting rod 12 1 ends connect the hydraulic system of tractor, the other end is connected on the suspended structure 13, hitch 13 is installed on the turnover bracket 15 through a turning cylinder, it is characterized in that: have a shifting fork assembly 11 to be located at upper connecting rod 12 belows, and be installed on the turnover bracket 15 through a bearing pin, shifting fork assembly 11 links to each other with resilient key 1 through a transmission mechanism; Upper connecting rod 12 presses shifting fork assembly 11, and shifting fork assembly 11 drives resilient key 1 action via transmission mechanism.Shifting fork assembly 11 is by return spring 10, connecting rod 9 and stir bearing pin 8 and form; Transmission mechanism is made up of clutch 6, ratchet 16, rotating shaft 4, arm-tie 2, clutch 6 is installed in the below of stirring bearing pin 8, ratchet 16 is installed in clutch 6 the insides, one chute 24 is arranged at ratchet 16 bottoms, spacing fixed axis 17 passes chute 24, and two ends are fixed on the clutch 6, is connected a spring 7 on the top of clutch 6 and the bottom of ratchet 16, make ratchet 16 keep high-end trim (as shown in Figure 2), the bearing pin 8 of stirring of shifting fork assembly 11 hooks ratchet 16; Rotating shaft 4 is supported by support plate 5, and an end is fixedly connected on the bottom of clutch 6, and the joint sleeve 26 that the other end passes arm-tie 2 is fixed on the U type bearing 22 (as shown in Figure 3), by jackscrew 3 arm-tie 2 and rotating shaft 4 is fixed together then; A positive stop lug boss (as shown in Figure 2) is arranged on the resilient key 1, an end of resilient key is penetrated return spring 25, and pass with a silk cap in the sleeve pipe of frame 23 and be fixed on the arm-tie 2, in the key seat 20 that the pin tongue 21 of the resilient key other end inserts on the plow frame front-axle beams 19.

Operation principle of the present utility model is: utilize the upper connecting rod 12 of tractor to press down a shifting fork assembly and drive the resilient key action when promoting plough.In plough body rise process, upper connecting rod 12 overcomes the resistance of shifting fork assembly 11 upper springs 10 gradually, press down shifting fork assembly 11, the connecting rod 9 of shifting fork assembly 11 drives to be stirred bearing pin 8 and hooks ratchet 16 and drive ratchet 16 and rotate, ratchet 16 drives clutch 6 again and rotates, clutch 6 drives rotating shaft 4 and rotates, rotating shaft 4 drives arm-tie 2 and outwards moves, overcome the resistance of resilient key 1 medi-spring 25 in the process that arm-tie 2 moves outside and drive resilient key 1 and move outward together, the pin tongue 21 of resilient key 1 is deviate from from key seat 20, at this moment plow frame overturns 180 ° under the eccentric force effect, make another group plough body be in the below, and the another one key seat forwards the pin tongue corresponding position of resilient key 1 to.

When plough body is raised to certain altitude, ratchet 16 is deviate from from the bearing pin 8 of stirring of shifting fork assembly 11, under the effect of resilient key 1 contained spring 25, resilient key 1 return, the pin tongue 21 of resilient key 1 insert with corresponding key seat 20 in, the other end drives arm-tie 2 returns, drives rotating shaft 4, clutch 6 rotations simultaneously, and clutch 6 drives ratchets 16 and rotates returns.

When plough body descends, the pressure of 12 pairs of shifting fork assemblies 11 of upper connecting rod reduces gradually, shifting fork assembly 11 is under its return spring 10 effects, gone up revolution gradually, in the last process that rises, shifting fork assembly 9 drives stirs bearing pin 8 revolutions, and the pulling force that overcomes ratchet spring 7 is depressed ratchet 16, and slips over gradually from ratchet 16 tops.

When plough body drops to certain altitude, upper connecting rod 12 separates with shifting fork assembly 11, shifting fork assembly 11 is got back to original position, at this moment stirring bearing pin 8 also slips over from ratchet 16 end faces, ratchet 8 return that under the effect of its return spring 7, rises, ratchet 16 is hooked in again stirs on the bearing pin 8, prepare upset work next time.

Claims

1, changes the mechanical automatic turning mechanism of plough, it comprises: resilient key (1), hitch (13), key seat (20), frame (23), trip shaft (18), plow frame front-axle beam (19), it is characterized in that: have a shifting fork assembly (11) be located at upper connecting rod (12) below, shifting fork assembly (11) links to each other with resilient key (1) through a sets of transmission mechanism, upper connecting rod (12) presses shifting fork assembly (11), and drives resilient key (1) action.

2, according to the machinery of the pivot plow described in the claim 1 automatic turning mechanism, it is characterized in that: shifting fork assembly (11) is by return spring (10), connecting rod (9) and stir bearing pin (8) and form, transmission mechanism is made up of clutch (6), ratchet (16), rotating shaft (4), arm-tie (2), clutch (6) is installed in the below of stirring bearing pin (8), ratchet (16) is installed in the clutch (6) and by a spring (7) and keeps high-end trim, and the bearing pin (8) of stirring of shifting fork assembly (11) hooks ratchet (16); Clutch (6) bottom is fixed with rotating shaft (4) one ends, and the other end of rotating shaft (4) is fixedlyed connected with arm-tie (2); Resilient key (1) one end is fixedlyed connected with arm-tie (2), and the pin tongue (21) of the other end passes sleeve pipe on the frame (23) and inserts in the key seat (20) on the plow frame front-axle beam (19).

3, according to the machinery of the pivot plow described in the claim 2 automatic turning mechanism, it is characterized in that: a chute (24) is arranged at ratchet (16) bottom, and spacing fixed axis (17) passes chute (24), and two ends are fixed on the clutch (6); Spring (7) one ends are connected in the top of clutch (6), and the other end is connected in the bottom of ratchet (16).

4, according to the machinery of the pivot plow described in the claim 2 automatic turning mechanism, it is characterized in that: rotating shaft (4) is supported by support plate (5), one end is fixedly connected on the bottom of clutch (6), the joint sleeve (26) that the other end passes on the arm-tie (2) is fixed on the U type bearing (22), by jackscrew (3) itself and arm-tie (2) is fixed together then.