CN205421372U

CN205421372U - Multifunctional excavator

Info

Publication number: CN205421372U
Application number: CN201520967655.6U
Authority: CN
Inventors: 周驰军; 孔昊
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-30
Filing date: 2015-11-30
Publication date: 2016-08-03
Anticipated expiration: 2025-11-30

Abstract

The utility model relates to a multifunctional excavator adds agricultural mechanism of pull -alongs on current excavator, according to combination constitution three -point linkage such as excavator design transition rack rational in infrastructure, mounted frame cooperation crossbeam, connecting rods, be in the same place the combination that agricultural utensil of pull -alongs and excavator are reliable, can pack up or fall in vertical direction through lift cylinder and the agricultural utensil of lift arm cooperation messenger's pull -alongs, be convenient for control access to agro -farming state or general mechanical operating condition, on the basis on the inside valve way of excavator itself, add valve unit cooperation operating handle simultaneously, utilize the oil circuit of excavator own for the operation of lift cylinder fuel feeding, just do not influence the mechanical operation that the excavator is normal, realize the extension of using of excavator a tractor serves several purposes, help numerous peasants user can utilize the excavator to carry out the agro -farming operation at busy farming season, and unlikely messengers excavator has set aside, improved the utilization ratio of excavator, rationally realized the optimal configuration of resource, increased new extra earning way for the user.

Description

A kind of multifunctional excavator

Technical field

This utility model relates to excavator field, particularly one and can be used as engineering machinery use, moreover it is possible to do the multifunctional excavator that agricultural machinery uses.

Background technology

At present, the mini-excavator sales volume of market account for 80%, market maintenance is the biggest；And the subject of a sale of mini-excavator is mainly town and country self-employed entrepreneurs, this colony is mostly peasant, simultaneously going deep into along with land transformation, and land contract family also gets more and more, and is required to purchase mini-excavator and gives over to use by oneself.For these peasant users, have four months the season in annual busy farming season, due to busy farming season irrigation project mostly stop work, the reasons such as part digging machine boss's agro-farming to be carried out, cause mini-excavator the most mostly to leave unused, it is impossible to apply in agro-farming operation, result in the waste of resource.

Utility model content

For the problems referred to above, the technical problems to be solved in the utility model is to increase the function of excavator, expand the range of excavator machine, make excavator act not only as engineering machinery to use, can also use as agricultural machinery, realize the maximum utilizationization of resource, provide new extra earning pattern for peasant user.

It is designed with following scheme for this this utility model:

A kind of multifunctional excavator, including lower running body, upper rotation and front end equipment, described lower running body has the agricultural tool of pull-alongs along the side connection of direction of travel.

Further, it is fixed with thread plate on the chassis of described lower running body, it is fixed with hitch on described thread plate, one end of described hitch stretches out and tool agricultural with pull-alongs is connected, and is additionally provided with the hoisting mechanism for making pull-alongs agricultural tool in the vertical direction lift in described hitch.

Further, described hitch includes fixing the transition frame being connected with thread plate, and the hanger bracket being connected is fixed with transition frame, the lower end of described hanger bracket is connected by rotating shaft two crossbeams, the end of described two crossbeams is fixed with limit longeron, the upper end of described hanger bracket is connected by rotating shaft at least one back timber, and the other end of described back timber is connected by rotating shaft at least two connecting rods, and one end of the agricultural tool of described pull-alongs is fixing with limit longeron and connecting rod respectively to be connected；Described hoisting mechanism includes at least one lift cylinder corresponding with back timber and at least two lift arms, and the cylinder body of described lift cylinder is fixed on hanger bracket, and the piston rod end of lift cylinder is fixed on one end that back timber is adjacent with hanger bracket；The two ends of any described lift arm are connected with top and the crossbeam of hanger bracket respectively by rotating shaft.

Further, being provided with the hydraulic control system for making lift cylinder action in described upper rotation, described hydraulic control system includes excavator banked direction control valves, control valve group, electromagnetic switching valve and threeway hand control valve；Described control valve group is made up of hand-operated direction valve in parallel and overflow valve, the input of control valve group is connected with excavator banked direction control valves by electromagnetic switching valve, and the outfan of control valve group passes through the threeway hand control valve oil-in respectively with excavator ejector dozer oil cylinder and lift cylinder and is connected.

Further, described hand-operated direction valve divides four gears, and in the driver's cabin of described upper rotation, four gears of corresponding hand-operated direction valve are provided with operation handle.

Further, the agricultural tool of described pull-alongs is four-furrow plough.

Advantage of the present utility model is: this utility model set up on existing excavator pull-alongs agricultural tool mechanism, coordinate the combination such as crossbeam, connecting rod to constitute three-link hitch according to excavator structure appropriate design transition frame, hanger bracket, agricultural for pull-alongs tool is combined reliably with excavator；Being coordinated by lift cylinder and lift arm makes the agricultural tool of pull-alongs can pack up with in the vertical direction or fall, it is simple to control to enter agro-farming state or common mechanical job state；Simultaneously on the basis of excavator inner valve road own, set up control valve and assemble closing operation handle, utilize the oil circuit of excavator own for lift cylinder fuel feeding operation, and do not affect the normal mechanical work of excavator；Achieve the application extension of excavator a tractor serves several purposes, help vast farmers user that excavator can utilized busy farming season to carry out agro-farming operation, and unlikely make excavator leave unused, improve the utilization rate of excavator, rationally achieve distributing rationally of resource, add new extra earning approach for user.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further, wherein:

Fig. 1 is front view of the present utility model；

Fig. 2 is upward view of the present utility model；

Fig. 3 is hydraulic control system schematic diagram in this utility model；

Fig. 4 is use schematic diagram of the present utility model.

Detailed description of the invention

With reference to a kind of multifunctional excavator shown in Fig. 1, including lower running body 200, upper rotation 100 and front end equipment 300, lower running body 200 has the agricultural tool of pull-alongs 400 along the side connection of direction of travel.

nullShown in seeing figures.1.and.2，The chassis of lower running body 200 is fixed with thread plate 210，It is fixed with hitch on thread plate 210，Described hitch includes the transition frame 201 being bolted to connection with thread plate 210，And the hanger bracket 202 being bolted to connection with transition frame 201，The lower end of hanger bracket 202 is connected by rotating shaft two crossbeams 203，Article two, the end of crossbeam 203 is fixed with limit longeron 205，The upper end of hanger bracket 202 is connected by rotating shaft back timber 204，The other end of back timber 204 is connected by rotating shaft two connecting rods 206，One end of the agricultural tool of pull-alongs 400 is fixed be connected with limit longeron 205 and connecting rod 206 respectively，Article two, between connecting rod 206, it is provided with that the middle part of Article 3 connecting rod 206 tool agricultural with pull-alongs 400 is fixing to be connected，Ensure during lifting integrally-built stable.

Described hoisting mechanism includes the lift cylinder 209 corresponding with back timber and is respectively in two lift arms 208 of lift cylinder both sides, the cylinder body of lift cylinder 209 is fixed on hanger bracket 202, and the piston rod end of lift cylinder 209 is fixed on one end that back timber 204 is adjacent with hanger bracket 202；The two ends of every lift arm 208 are all connected with the crossbeam 203 of the top of hanger bracket 209 and corresponding side respectively by rotating shaft.

The hydraulic control system for making lift cylinder 209 action it is provided with in upper rotation 100, with reference to shown in Fig. 3, hydraulic control system is on the basis of excavator itself existing excavator main pump 8 and excavator banked direction control valves 9, setting up in control valve group 1(Fig. 1 is 101), electromagnetic switching valve 2 and threeway hand control valve 3；Control valve group 1 is made up of hand-operated direction valve 6 in parallel and overflow valve 7,6 points of four gears of hand-operated direction valve, topmost for promote position a, in turn below be middle position b, decline position c and suspension position d；In the driver's cabin of upper rotation 100, four gears of corresponding hand-operated direction valve 6 are provided with operation handle 102；Operator as required operation handle shift onto need gear can be achieved with the agricultural tool of pull-alongs lifting, decline, suspension work.

The input of control valve group 1 is connected with excavator banked direction control valves 9 by electromagnetic switching valve 2, and when the agricultural tool of pull-alongs that excavator extension connects needs work, electromagnetic switching valve is energized, and enters control valve group 1 from excavator main pump 8 and then to working connection introducing hydraulic oil；Need not then electromagnetic switching valve 2 power-off during pull-alongs agricultural tool work.

The outfan of control valve group 1 by two threeway hand control valves 3 respectively with excavator ejector dozer oil cylinder 5 and lift cylinder 4(Fig. 1 are 209) oil-in be connected；Owing to reequiping on original excavator, center-rotary joint, without reserved passageway, uses dozer (during pull-alongs agricultural tool work, dozer does not works) passage tube in the present embodiment, is used by two threeway hand control valve 3 switchings.

The agricultural tool of pull-alongs 400 in the present embodiment selects four-furrow plough, the agricultural tool of other pull-alongs can also be selected to replace and use.

With reference to shown in Fig. 4, specific operation process of the present utility model is as follows:

The agricultural tool of step 1, pull-alongs promotes: control crank pushes forward to promote position a, and the spool of hand-operated direction valve travels forward；The lifting oil circuit conducting of control valve group, hydraulic oil enters the big chamber of lift cylinder by pipeline, piston rod stretches out promotion back timber and then drives lift arm to move upward, thus integral hanging mechanism moves upward, make four-furrow plough move upward and realize enhanced feature, to correct position, control crank is withdrawn into position in initial b shelves.

The agricultural tool of step 2, pull-alongs declines and work: control crank pushes backwards to decline position c, the spool rearward movement of hand-operated direction valve；The decline oil circuit conducting of control valve group, hydraulic oil enters oil cylinder loculus by pipeline, piston rod is regained, lift arm is pulled to move downward, and then dragging integral hanging mechanism moves downward, make four-furrow plough move downwardly to soil appropriate depth, then continue control crank to be pulled to backward suspend for d, four-furrow plough d keeps this suspension duty, moves with excavator and carries out agro-farming.

The agricultural tool of step 3, pull-alongs quits work and removes earth: when quitting work, excavator halts, and control crank pushes forward to rapidly middle position b, then shifts onto promote position a, by the agricultural tool motion of step 1 process operation pull-alongs, pull-alongs agricultural tool lifting can separate with soil.

The above; it is only the preferable detailed description of the invention of this utility model; but this utility model protection domain is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; the change that can readily occur in or replacement, all should contain within protection domain of the present utility model.Therefore this utility model protection domain is as the criterion with the protection domain of claims.

Claims

1. a multifunctional excavator, including lower running body, upper rotation and front end equipment, described lower running body has the agricultural tool of pull-alongs along the side connection of direction of travel, it is characterized in that, it is fixed with thread plate on the chassis of described lower running body, being fixed with hitch on described thread plate, one end of described hitch stretches out and tool agricultural with pull-alongs is connected, and is additionally provided with the hoisting mechanism for making pull-alongs agricultural tool in the vertical direction lift in described hitch.

A kind of multifunctional excavator the most according to claim 1, it is characterized in that, described hitch includes fixing the transition frame being connected with thread plate, and the hanger bracket being connected is fixed with transition frame, the lower end of described hanger bracket is connected by rotating shaft two crossbeams, the end of described two crossbeams is fixed with limit longeron, the upper end of described hanger bracket is connected by rotating shaft at least one back timber, the other end of described back timber is connected by rotating shaft at least two connecting rods, and one end of the agricultural tool of described pull-alongs is fixing with limit longeron and connecting rod respectively to be connected；Described hoisting mechanism includes at least one lift cylinder corresponding with back timber and at least two lift arms, and the cylinder body of described lift cylinder is fixed on hanger bracket, and the piston rod end of lift cylinder is fixed on one end that back timber is adjacent with hanger bracket；The two ends of any described lift arm are connected with top and the crossbeam of hanger bracket respectively by rotating shaft.

A kind of multifunctional excavator the most according to claim 2, it is characterized in that, being provided with the hydraulic control system for making lift cylinder action in described upper rotation, described hydraulic control system includes excavator banked direction control valves, control valve group, electromagnetic switching valve and threeway hand control valve；Described control valve group is made up of hand-operated direction valve in parallel and overflow valve, the input of control valve group is connected with excavator banked direction control valves by electromagnetic switching valve, and the outfan of control valve group passes through the threeway hand control valve oil-in respectively with excavator ejector dozer oil cylinder and lift cylinder and is connected.

A kind of multifunctional excavator the most according to claim 3, it is characterised in that described hand-operated direction valve divides four gears, in the driver's cabin of described upper rotation, four gears of corresponding hand-operated direction valve are provided with operation handle.

A kind of multifunctional excavator the most according to claim 1, it is characterised in that the agricultural tool of described pull-alongs is four-furrow plough.