Background technology
After the crops results, need the loading and unloading transportation, so that stacking, storage or processing.Crops, particularly corn, paddy rice, wheat etc., the characteristics after tying up are: shape is uncertain; Weight is also little and volume is big; Crops stacking after tying up does not have the requirement of direction.
Use a dead lift, labour intensity is too big, and production efficiency is extremely low, and labor condition is very poor.
The common fork truck of prior art, the price height is applicable to regular shape (being preferably square, oblong), the cargo handing transportation that weight is bigger, and is used for carrying out the occasion of operation throughout the year, so the requirement that general fork truck of the prior art manufactures and designs is very high.If adopt the general-duty fork truck to carry out the loading and unloading transportation of crops, obviously cost is too high, is not suitable for vast rural area and uses, and particularly can only leave unused usually just in the operation in short-term of crops harvest season every year, causes waste.
The utility model content
Problem to be solved in the utility model provides a kind of crops loading and unloading transportation fork truck, its objective is the loading and unloading transportation with the crops of field machine realization cheaply.
To achieve these goals, the technical scheme taked of the utility model is:
This crops loading and unloading transportation fork truck provided by the utility model, comprise fork truck vehicle body, fork truck frame, fork arm, described fork truck frame is a planar linkage mechanism, described planar linkage mechanism is two, the structure of described two planar linkage mechanisms is identical, and symmetrical parallel is distributed in vehicle body fwd both sides, and connects with the same position of a plurality of pipe links with two groups of planar linkage mechanisms, and described fork truck vehicle body is a rack component; Described fork arm is located at the front portion of described planar linkage mechanism, and stretches out forward.
For making the utility model more perfect, more detailed and concrete technical scheme below also further having proposed, to obtain best practical function, realize goal of the invention better, and improve novelty of the present utility model and creativeness:
The external part of described fork arm is sharp-pointed structure.
Establish hydraulic actuating cylinder on the described fork truck vehicle body, described hydraulic actuating cylinder and fork truck vehicle body are articulated and connected, and the piston rod of described hydraulic actuating cylinder is connected with the rocking arm of described planar linkage mechanism.
Described fork truck vehicle body is the vehicle body of farm tractor, and the hydraulic efficiency pressure system that is used to drive described hydraulic actuating cylinder is the hydraulic efficiency pressure system of described farm tractor.
Compare with existing, the utility model adopts technique scheme, can greatly improve the efficient of agricultural production, reduces labour intensity; Simple in structure, with low cost; Realize a tractor serves several purposes, improve the degree of utilization of farm tractor; Easy to operate, be easy to apply in vast rural area.
The specific embodiment
Contrast accompanying drawing below,, the specific embodiment of the present utility model is described in further detail, inventive concept of the present utility model, technical scheme are had more complete, accurate and deep understanding to help those skilled in the art by description to embodiment.
The of the present utility model structure expressed as Fig. 1 for a kind of crops loading and unloading transportation fork truck, comprises fork truck vehicle body 1, fork truck frame 2, fork arm 3.
In order to solve the problem that exists at the described present known technology of this specification sheets background technology part and to overcome its defective, realize that the technical scheme that the utility model is taked is with the goal of the invention of the loading and unloading transportation of the crops of field machine realization cheaply:
As shown in Figure 1, fork truck frame 2 in this crops loading and unloading transportation fork truck provided by the utility model is a planar linkage mechanism, described planar linkage mechanism is two, the structure of described two planar linkage mechanisms is identical, and symmetrical parallel is distributed in vehicle body fwd both sides, and connect with the same position of a plurality of pipe links with two groups of planar linkage mechanisms, described fork truck vehicle body 1 is a rack component 4; Described fork arm 3 is located at the front portion of described planar linkage mechanism, and stretches out forward.
The utility model is particularly suitable for the not rich rural area of vast economic condition and uses.
In each planar linkage mechanism:
Two parallel rocking arms 6 are arranged, and described rocking arm 6 is hinged and connected with rack component 4; The other end of described two rocking arms 6 is articulated and connected by side link 7; Described fork arm 3 is parallel two, and the length basically identical, and described fork arm 3 is solidly connected on described side link 7.
Because fork arm 3 of the present utility model links to each other with rack component 4 by two rocking arms 6, side link 7, rocking arm 6 and rack component 4 have just constituted the double rocker mechanism in the hinge four-bar linkage, by stretching of the hydraulic cylinder piston between rocking arm 6 and frame, double rocker mechanism is swung up and down, drive fork arm lifting about in the of 3, promote or put down goods.
During the loading and unloading crops, earlier fork arm 3 is dropped to the height of frame bottom, drive fork arm 3 parallel propelling by trac. along ground, in the crops that insertion is tied up, primer fluid cylinder pressure 5 makes on the fork arm 3 and lifts then, bundled crops are given rise to the transport trolley top, and trac. retreats fork arm 3 is extracted out in the middle of crops, finishes handling labor.
As shown in Figure 1, the fork arm 3 in the utility model is divided into some and parallel to each other, and its length should adapt with the size of the bundled crops of loading and unloading.
The external part of fork arm 3 described in the utility model is sharp-pointed structure.
Said structure helps fork arm 3 and inserts in the bundled crops.
Establish hydraulic actuating cylinder 5 on the fork truck vehicle body 1 described in the utility model, described hydraulic actuating cylinder 5 is articulated and connected with fork truck vehicle body 1, and the piston rod of described hydraulic actuating cylinder 5 is connected with the rocking arm of described planar linkage mechanism 6.
Stretching of described hydraulic actuating cylinder 5 piston rods swings up and down rocking arm 6, drives fork arm lifting about in the of 3, the loading and unloading crops.Hydraulic actuating cylinder 5 can be one, promptly between the rocking arm 6 below fork arm 3 two ends pipe link is set, and is cross bar, and cross bar links to each other with the piston rod of hydraulic actuating cylinder 5; In order to be subjected to equilibrium of forces, hydraulic actuating cylinder 5 also can be two, and promptly 1 of rocking arm below each 6 and fork truck vehicle body are installed a hydraulic actuating cylinder 5 respectively, so that rocking arm 6 stressed dispersions, even.
Fork truck vehicle body 1 described in the utility model is the vehicle body of farm tractor, and the hydraulic efficiency pressure system that is used to drive described hydraulic actuating cylinder 5 is the hydraulic efficiency pressure system of described farm tractor.
Fork truck frame 2 is installed on the fuselage of farm tractor, and is detachable structure, is convenient to install and use.Farm tractor should suitably be reequiped, to adapt to the requirement that it uses as fork truck.
At rocking arm 6 and 1 of fork truck vehicle body hydraulic actuating cylinder 5 is housed, hydraulic actuating cylinder 5 provides power by the hydraulic efficiency pressure system of farm tractor, and fork truck frame 2 is located on the fuselage of farm tractor.Fork truck frame 2 of the present utility model is installed on one's body the farm tractor, hydraulic power is provided and is transported by farm tractor.When loading and unloading the crops operation, fork truck frame 2 is installed on the farm tractor, operation finishes and dismantles, this structure is fit to vast rural area and applies, realize a tractor serves several purposes of farm tractor, improved operating efficiency, improved the degree of utilization of farm tractor.Of the present utility model simple in structure, economical and practical.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.