CN201323741Y

CN201323741Y - Handrail rotating and positioning structure of micro-tillage machine

Info

Publication number: CN201323741Y
Application number: CNU200820100785XU
Authority: CN
Inventors: 李杨均
Original assignee: Chongqing Zongshen Technology Development and Research Co Ltd
Current assignee: Chongqing Zongshen Technology Development and Research Co Ltd
Priority date: 2008-12-01
Filing date: 2008-12-01
Publication date: 2009-10-14
Anticipated expiration: 2018-12-01

Abstract

The utility model relates to a handrail rotating and positioning structure of a micro-tillage machine, which includes an upper sliding seat fixedly connected with a handrail, and a lower sliding seat fixedly connected with the micro-tillage machine; an upwards erecting shaft is fixed on the lower sliding seat; a shaft hole is formed on the upper sliding seat; the upper and the lower sliding seats form sliding fit through hole and shaft fit; a plurality of positioning holes are formed beside the shaft of the lower sliding seat; a spring positioning pin combination is formed beside the shaft of the upper sliding seat; a positioning pin of the spring positioning pin combination is inserted into the positioning hole under the action of the elasticity of the spring, thereby forming circumferential positioning; and the positioning pin is connected with the operating handle arranged on the handrail through an inhaul cable. The utility model has a firm connection structure, the positioning effect is good, and the steering operation of the micro-tillage machine is simple and convenient.

Description

The handrail rotary positioning structure of micro-farming machine

Technical field

The utility model relates to the steering control device of mini-size tillage machine, is specifically related to a kind of handrail rotary positioning structure of micro-farming machine.

Background technology

It at present is the hand steered adjusting device of 200620072803.9 the disclosed a kind of mini-size tillage machine of file as the patent No., adopt and hand steeredly fixedly connected with linking arm, linking arm is connected with body, on body, offer a vertical axis hole, an axis hole is also offered in the linking arm lower end, connect arm axle junctor body and linking arm, on the connection arm axle, the linking arm fastener is set, the counterface of body and linking arm is provided with intermeshing tooth, it is fastening by the arm fastener that is rotatably connected linking arm end face and body end face to be meshed, and allows linking arm and body not produce relative motion; Turn if make mini-size tillage machine, the rotation of linking arm fastener is unclamped, linking arm is separated with the end face engagement of body, allow linking arm and body can produce relative motion, to pull hand steered to certain angle, it is fastening that the arm fastener that is rotatably connected again makes linking arm and body form the end face engagement, just can hold hand steeredly, handles the mini-size tillage machine turning.The location that turns to of this structure relies on the engagement of end face tooth, and will be by being rotatably connected the arm fastener when handling, agro-farming personnel's hand need leave the hand steered linking arm fastener that goes to handle, its manipulation process need be passed through a plurality of actions, it is hand steered to be that hand leaves, and---the arm fastener is rotatably connected, and---hand is regained and is rotated hand steered---arm fastener once more is rotatably connected---to regain manipulation then hand steered, this maneuverability pattern very complicated, operation is extremely inconvenient, also cause mini-size tillage machine out of control easily, cause security incident.And this structure does when relatively rotating in the engagement of unclamping tooth, and the friction of the end face tooth of linking arm and body is big, make tooth easily wearing and tearing or indivedual tooth interrupt, lose the effect of effective location.

Summary of the invention

The purpose of this utility model is the deficiency that exists at prior art, a kind of handrail rotary positioning structure of micro-farming machine is provided, it is slidingly matched and finger setting by the relative motion part, make the handrail positioning of rotating of micro-farming machine easy and simple to handle, easy, and can not loosen control micro-farming machine.

The purpose of this utility model is achieved in that and comprises the upper saddle of fixedlying connected with handrail, the lower slider of fixedlying connected with the micro-farming machine body, fix the upright axle that makes progress on the described lower slider, upper saddle is provided with an axis hole, on, lower slider cooperates relatively turnable being slidingly matched of formation by the hole axle, next to axis at lower slider is provided with a plurality of locating holes, make up at the other spring holder that is provided with of the axis hole of upper saddle, the alignment pin of described spring holder combination inserts to form circumferentially in the locating hole under the elastic force effect of spring and locatees, and alignment pin is connected by the control crank that is provided with on drag-line and the handrail.

Owing to adopt technique scheme, to cooperate by the hole axle with the fixedly connected upper saddle of handrail, with the fixedly connected lower slider of micro-farming machine body and form relatively turnable being slidingly matched, make upper saddle rotate the operation that helps turning to like a cork with respect to lower slider.Next to axis at lower slider is provided with a plurality of locating holes, make up at the other spring holder that is provided with of the axis hole of upper saddle, the alignment pin of upper saddle by spring holder combination inserts to form circumferentially in the locating hole of lower slider under the elastic force effect of spring and locatees, and can easily upper saddle be positioned at the angle that turns to.And alignment pin is connected by the control crank that is provided with on drag-line and the handrail, during manipulation, operating personnel's hand does not leave handrail and just can make things convenient for and control micro-farming machine freely, guarantee the control of operating personnel, stop hand because of operating personnel and leave handrail and go to operate the security incident that transfer causes and take place micro-farming machine.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the schematic top plan view of upper saddle;

Fig. 3 is the elevational schematic view of lower slider.

Among the figure, 1 is upper saddle, and 1a is a handrail installation portion, and 2 is lower slider, and 2a is the lower slider installation portion, and 3 is guide, 4 is alignment pin, and 5 are the compression spring, and 6 are the locking blind nut, and 7 is drag-line, and 8 is axle, 9 is nut, and 10 is sliding sleeve, and 11 is the handrail installing hole, and 12 is installing hole, and 13 is locating hole.

Embodiment

Referring to figs. 1 through Fig. 3, a kind of embodiment of handrail rotary positioning structure of micro-farming machine comprises the upper saddle 1 of fixedlying connected with handrail, the lower slider 2 of fixedlying connected with the micro-farming machine body, and upper and lower slide all adopts the steel plate punch forming.The both sides of described upper saddle 1 form the handrail installation portion 1a that upwards turns back, handrail installation portion 1a is provided with handrail installing hole 11, the end that the left and right sides handrail of micro-farming machine is connected with slide inserts in the handrail installing hole 11, adopts conventional affixed modes fixedly connected (not shown) such as welding or interference fit.The both sides of described lower slider 2 form the lower slider installation portion 2a that turns down, lower slider installation portion 2a is provided with installing hole 12, pass on the mechanism housing that these installing holes are fixedly connected on lower slider 2 micro-farming machine (not shown) with screw, lower slider 2 can certainly be fixed on other firm position of micro-farming machine.Fix the upright axle 8 that makes progress on the described lower slider 2, this upright axle 8 that makes progress is welded on the lower slider, and the Lower Half of axle 8 is the smooth face of cylinder, and the upper end of axle 8 is provided with and is used for the thread segment that cooperates with stop nut 9.Described upper saddle 1 is provided with an axis hole, and upper saddle 1 cooperates relatively turnable being slidingly matched of formation by axis hole with the axle 8 of lower slider, and the face that upper and lower slide is in contact with one another is smooth plane, and mutual friction in relative rotation can be reduced as far as possible.Be the stationarity that guarantees that the hole axle cooperates, the axle 8 that is provided with sliding sleeve 10 and lower slider at the axis hole place of upper saddle 1 is slidingly matched.Sliding sleeve 10 also can adopt to be embedded, to be weldingly fixed on the upper saddle 1 for the portion that extends upward through the stamping forming axis hole wall of pull and stretch.Axle 8 sides at lower slider 2 are provided with a plurality of locating holes 13, and these locating hole 13 threaded shafts 8 are distributed in one side of axle 8 or on every side, the angle at interval is 10～30 ° between two adjacent holes of described a plurality of locating holes.Make up at the other spring holder that is provided with of the axis hole of upper saddle 1, described spring holder combination comprises alignment pin 4, guide 3, compression spring 5, locking blind nut 6, guide 3 adopts conventional fixed forms such as welding or interference fit to be fixed on the pin-and-hole that is provided with on the upper saddle 1, alignment pin 4 matched in clearance are in guide 3 and pin-and-hole, compression spring 5 is contained in and is against alignment pin 4 upper ends in the guide 3 and the extended pin-and-hole of the head of alignment pin is inserted in the locating hole 12 of lower slider 2 form circumferentially location, locking blind nut 6 is spacing to compression spring 5 with guide 3 threaded engagement, the tail end of alignment pin 4 is connected and fixed with the drag-line 7 that penetrates from the circle center hole that is provided with of locking blind nut 6, and the control crank that is provided with on drag-line 7 and the handrail is connected (not shown).

When the handrail of manipulation micro-farming machine turns to agricultural ploughing machine, by controlling the hand control control crank of handrail, make control crank drive drag-line 7 pulling alignment pins 4 retractions, remove the circumferential position and lock between the upper and lower slide, rotate handrail to certain angle, loosen control, form circumferential position and lock in the locating hole of alignment pin insertion lower slider under the elastic force effect of compression spring 5, just can handle micro-farming machine and turn to by selected angle to control crank.Adopt this structure to handle micro-farming machine and turn to convenience, simple, and free and relaxed, and the circumferential position and lock behind the adjustment steering angle is firm.

Claims

1. the handrail rotary positioning structure of a micro-farming machine, it is characterized in that: comprise the upper saddle of fixedlying connected with handrail, the lower slider of fixedlying connected with the micro-farming machine body, fix the upright axle that makes progress on the described lower slider, upper saddle is provided with an axis hole, on, lower slider cooperates relatively turnable being slidingly matched of formation by the hole axle, next to axis at lower slider is provided with a plurality of locating holes, make up at the other spring holder that is provided with of the axis hole of upper saddle, the alignment pin of described spring holder combination inserts to form circumferentially in the locating hole under the elastic force effect of spring and locatees, and alignment pin is connected by the control crank that is provided with on drag-line and the handrail.

2. according to the handrail rotary positioning structure of the described micro-farming machine of claim 1, it is characterized in that: the described upper end that makes progress upright axle is provided with and is used for the thread segment that cooperates with stop nut.

3. according to the handrail rotary positioning structure of the described micro-farming machine of claim 1, it is characterized in that: the angle at interval is 10～30 ° between two adjacent holes of described a plurality of locating holes.

4. according to the handrail rotary positioning structure of the described micro-farming machine of claim 1, it is characterized in that: described spring holder combination comprises alignment pin, guide, compression spring, locking blind nut, guide is fixed on the pin-and-hole that is provided with on the upper saddle, the alignment pin matched in clearance is in guide and pin-and-hole, the compression spring is against the alignment pin upper end inserts in the locating hole of lower slider the extended pin-and-hole of head of alignment pin, locking blind nut and guide threaded engagement are spacing to the compression spring, and the tail end of alignment pin is connected and fixed with the drag-line that penetrates from the locking blind nut.

5. according to the handrail rotary positioning structure of the described micro-farming machine of claim 1, it is characterized in that: the axle that the axis hole place of described upper saddle is provided with sliding sleeve and lower slider is slidingly matched.

6. according to the handrail rotary positioning structure of the described micro-farming machine of claim 5, it is characterized in that: described sliding sleeve is the extension through the stamping forming axis hole wall of pull and stretch.