CN2605719Y - Portable digging machine for planting trees - Google Patents

Abstract

The utility model describes a portable dibbling machine for planting tree, which is composed of a single cylinder wind-cold two-stroke gasoline engine, a speed reducer, an operating handgrip assembly and a spiral rising soil vane drill bit. The main design of the utility model is to connect the gasoline engine with the speed reducer by only one catch hoop locking ring, which is simple and firm and is easy to maintain; the speed reducer has a compact structure and has a big level one deceleration transmission ratio, high carrying capacity, big transmission power and big torque, the rotate speed of the drill bit is rational, the assembling and dissembling are easy, and the alloy is inlaid on the drill bit, which is durable with extended service life; a dual operating handgrip can absorb shock by two times and can be folded, so the size can be reduced by 2/3, and the dual operating handgrip can be changed to a single small operating handgrip at will for digging small pits, which is convenient for transportation and carrying; the diameter of the pit is 35-50Cm, the depth is 50-100Cm, the efficiency is 1 pit per minute. In addition, the machine can also be used in operations such as burying stakes, poles, rods and drilling holes and reconnoitering in the construction, geology, mining, electric utility and transportation departments.

Description

Portable Tree Planting Earthdrill

Technical field: the utility model relates to a kind of hole digger, and specifically a kind of speed reducing ratio high pulling torque is big, the work drill bit is durable, operator is the Tree Planting Earthdrill tool that can fold, carry convenient transportation.

Background technology: the hole digger type of a kind of double operation format that at present the portable Tree Planting Earthdrill used of China seldom and all is 60, produce the seventies.Introduce in forestry publishing house " hole digger " books in 1989 this facility are arranged.Main existing problems: the one, speed reducing ratio too small (26: 1) and make the little rotating speed of work torque-on-bit too high, the diameter of digging pit is little and throw soil and promptly far have diffusingly, and the work drill bit is very fast by blunt, and following brill is difficult; The 2nd, the also easily broken and loading and unloading trouble of reducer output shaft straight pin easily broken and that be connected with drilling rod; The 3rd, double operator diminishes long can not folding and make volume big, and it is relatively poor etc. to carry, case, transport very inconvenience, practicality.

Summary of the invention: the utility model purpose provides a kind of gasoline engine power height, and speed reducing ratio is big, and moment of torsion is big, drill speed is reduced and the convenience of removing stage makeup and costume, the working head durable; Double operator is collapsible, and volume-diminished is convenient to transportation flexibly, is carried, and can also be replaced by single handgrip and dig pitting, and the dig pit diameter and the degree of depth are improved, every technical indicator advanced person's portable Tree Planting Earthdrill.To be hole digger be made of assembly, work drill bit a single-cylinder air-cooled two-stroke gasoline engine of 3.7KW, decelerator, double operator its major technique content; It is characterized in that: gasoline engine is fastened by clip retainer and bigger (47: 1,53: the 1) cycloid drive of speed reducing ratio of strap wrenches, decelerator is fastening with the holder of bolt and operator handle by shock-absorbing sleeve, the both sides of double operator handle and holder are connected with bolt by the oblique support plate of four couples that all weld the end again, middle then by its bottom all the flat steel bar of welding by the bolt of a pair of band handle handgrip is fixed, the release handle bolt, left and right sides operator is being that the center of circle can be to the centre folding 180 ° with the bolt that connects oblique support plate respectively; Right operator on clamp arc and hold the backguy brake lever, as controlling the throttle spanner; The drillstock that spiral rises native fin drill bit adopts convex-concave oldham coupling mode and reducer output shaft to be located by connecting, drill bit is the double end twolip, apex point is that welding-on has alloy block dichotomous, and cutting edge has all been ground on two blade two sides up and down, and the equal welding-on in corner, cutting edge outer has the tungsten-cobalt hard alloy piece.The utility model is compared the advanced part that has and is with prior art: engine power is big; The reducer structure compact volume is little, in light weight, bearing capacity is high, transmission power is big, transmission efficiency can be up to 97%, stable drive, noiselessness, long service life, gearratio is big and the one-level deceleration transmission, the moment of torsion height, the work drill speed is low, brill power is big, vibrations reduce, and the diameter and the degree of depth of digging pit increases; Operator is collapsible, thereby volume can dwindle 2/3 when making the non-use of hole digger, and it is very convenient to carry, case, transport; Dig pitting, also replaceable one man operation's Bar end one people digs pit, and saves the labour; The throttle spanner is simple and convenient practical flexibly again, and cost is also low; Work drill bit and reducer output shaft is easy to connect rationally, loading and unloading fast, change straight pin connect yielding, cut off, difficult dismounting, easy defectives such as off-axis; It is not only wear-resisting, shock-resistant that the brill ploughshare contains alloy block, and usefulness can be turned over up and down in the blade two sides, improves advantages such as bit life several times, thereby overcome the existing existing weak point of portable hole digger.

Tree Planting Earthdrill of the present utility model in a word is improved from technical indicators such as the diameter of digging pit, the degree of depth, durable vibrations, make portable convenient, flexibly, increase the service life and use value; And make hole digger that new progress arranged, new development

Description of drawings:

Fig. 1 is a main cutaway view of the present utility model:

Fig. 2 is the vertical view of Fig. 1:

Wherein: gasoline engine 1, ring-shaped clip 2, a plate bolt 3, oblique support plate 4, right handgrip 5, rubber sleeve 6, throttle wrench 7, handgrip stiffener 8, handle bolt 9, pipe box 10, pipe nut 11, holder stiffener 12, handgrip holder 13, bolt 14, decelerator 15, stop screw 16, drillstock 17, work drill bit 18, helical wing plate 19, tool rest 20, screw 21, tungsten-cobalt alloy piece 22, blade 23, straight pin 24, apex point 25.

Accompanying drawing has provided embodiment of the present utility model, and 1 Fig. 2 narrates below in conjunction with accompanying drawing:

Gasoline engine 1 is snapped together by clip retainer 2 and decelerator 15; Decelerator 15 is fixing by the jail with handgrip holder 13 by the bolt 14 of two M14 * 250mm again; Symmetrical two operators 5 and the end of handgrip holder 13 all weld four oblique support plates 4, with screw 3 these four pairs of support plate 4 tops are connected, pad Φ 10 packing rings in the middle of the support plate, rectangle band steel stiffener 12 and 8 is respectively welded in the bottom, is welded with pipe box 10 and pipe nut 11 in the middle of the opposite position respectively, with a pair of handle bolt 9 both are connected and fixed, release handle bolt 9, left and right handles 5 is the center of circle with screw 3 just, fold up to the centre, among Fig. 1 shown in the dotted line.Rubber sleeve 6 is inserted in left and right handles 5 both sides, make hold comfortable.If dig pitting, can change left and right handles 5 and be one man operation's Bar end.Backguy brake bar type throttle spanner 7 is loaded on right handgrip 5 that custom holds throttle position smoothly with the annular snap subcard.Helical wing plate 19 and drilling rod are welded to form work drill bit 18, insert in the output shaft of decelerator 15 by welding convex-concave drillstock 17, and be fixed with stop screw 16 pins, clamps into a vertical line.The dichotomous apex point 25 that contains alloy block is installed in the top of work drill bit 18, and is fixed with straight pin 24 pins; Small one and large one is installed on 23 fens left-right symmetry of the blade of corner welding-on alloy block 22 on the tool rest 20 that is welded on work drill bit 18 with screw 21.Above hole digger just formed.

During use, at first start gasoline engine 1, make its normal low speed running, make apex point 25 be placed on the position of digging pit then, the right hand is held throttle spanner 7, open the throttle gently, work drill bit 18 has certain spiral angle and penetrating angle just to advance to bore automatically, does not need increased force will, and according to the hard soft degree in soil and the required degree of depth of digging pit, grasp throttle spanner 7, two people and need the good balance of close fit, just can finish the operation of digging pit smoothly.

Claims (3)

1, a kind of portable hole digger rises native fin drill bit to assembly and spiral by single-cylinder air-cooled two-stroke gasoline engine, decelerator, double operator and constitutes.It is characterized in that clip retainer and bigger (47: 1,53: the 1) cycloid drive of speed reducing ratio that gasoline engine passes through strap wrenches are fastened, decelerator is fastening with the holder of bolt and operator handle by shock-absorbing sleeve, the both sides of double operator handle and holder are connected with bolt by the oblique support plate of four couples that all weld the end again, middle then by its bottom all the flat steel bar of welding by the bolt of a pair of band handle handgrip is fixed, the release handle bolt, left and right sides operator is being that the center of circle can be to the centre folding 180 ° with the bolt that connects oblique support plate respectively.

2, hole digger according to claim 1, it is characterized in that right operator on clamp arc and hold the backguy brake lever, as control throttle spanner.

3, hole digger according to claim 1, it is characterized in that the drillstock that spiral rises native fin drill bit adopts convex-concave oldham coupling mode and reducer output shaft to be located by connecting, drill bit is the double end twolip, apex point is that welding-on has alloy block dichotomous, cutting edge has all been ground on two blade two sides up and down, and the equal welding-on in corner, cutting edge outer has the tungsten-cobalt hard alloy piece.

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