Trench digging blade
Technical field
This utility model relates to soil cultivating machine field, specifically a kind of trench digging blade.
Background technology
Trench digging blade is generally used in architectural engineering excavating narrow and deep ground lower groove and buries the department such as subsoil drain or railway, post and telecommunications, urban construction underground for burying cable and pipeline etc. underground it can also be used to orchard, herbary and other farm environment ditching-fertilizing, draining, irrigation.The existing Mini-type ditching machine for farmland trench digging is mounted in hand tractor mostly; operation is carried out in field by tractor driving power drive trench digging blade; existing trench digging blade is in soft soil such as marshy lands during operation; the traction wheel of tractor usually can produce and get deeply stuck in or skid; when traction wheel gets deeply stuck in, can only rely on and manually sue and labour.
Therefore, for solving problem above, need a kind of trench digging blade, it is provided with helical blade on this trench digging blade, during trench digging, utilize the propulsive force that helical blade produces, be prevented effectively from trench digging machine and get deeply stuck in when the mellow soils such as marshy land carry out trench digging operation or driving wheel skidding, thus improve working performance.
Utility model content
In view of this, the purpose of this utility model is to overcome defect of the prior art, a kind of trench digging blade is provided, it is provided with helical blade on this trench digging blade, during trench digging, utilize the propulsive force that helical blade produces, be prevented effectively from trench digging machine and get deeply stuck in when the mellow soils such as marshy land carry out trench digging operation or driving wheel skidding, thus improve working performance.
Trench digging blade of the present utility model, including helical blade and be fixed on described helical blade end and carry out the cutting blocks of trench digging operation for cutting soil;
Further, described cutting blocks is radially fixed to helical blade end, and the length of cutting blocks is more than the width of helical blade;
Further, a length of pitch of described helical blade or multiple pitch;
Further, described helical blade is the sector less than a pitch;
Further, described cutting blocks is rectangular structure;
Further, described cutting blocks by welding or one-body molded is fixed on helical blade end.
The beneficial effects of the utility model are: trench digging blade of the present utility model, it is provided with helical blade on trench digging blade, during trench digging, utilize the propulsive force that helical blade produces, it is prevented effectively from trench digging machine to get deeply stuck in when the mellow soils such as marshy land carry out trench digging operation or driving wheel skidding, this trench digging blade may utilize baby tractor or the rotary cultivator with traction wheel drives, trench digging blade is multiple and is separately mounted in multiple drive shaft be arrangeding in parallel, control the rotation direction of drive shaft, trench digging blade is made to stir soil to both sides in the middle of trench digging machine, when the traction wheel of tractor or rotary cultivator rotates, complete ditching operation, when traction wheel wheel stops operating, when making trench digging blade original place rotate, trench digging blade can be carried out digging pit operation.
Accompanying drawing explanation
With embodiment, this utility model is further described below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1.
Detailed description of the invention
Fig. 1 is structural representation of the present utility model, as it can be seen, the trench digging blade of the present embodiment, and bag helical blade 2 and be fixed on described helical blade 2 end and carry out the cutting blocks 3 of trench digging operation for cutting soil;Helical blade 2 it is provided with on trench digging blade, during trench digging, utilize the propulsive force that helical blade 2 produces, it is prevented effectively from trench digging machine to get deeply stuck in when the mellow soils such as marshy land carry out trench digging operation or driving wheel skidding, this trench digging blade may utilize baby tractor or the rotary cultivator with traction wheel drives, trench digging blade is multiple and is separately mounted in multiple drive shaft be arrangeding in parallel, control the rotation direction of drive shaft, trench digging blade 3 is made to stir soil to both sides in the middle of trench digging machine, when the traction wheel of tractor or rotary cultivator rotates, complete ditching operation, when traction wheel wheel stops operating, when making trench digging blade original place rotate, trench digging blade can be carried out digging pit operation.
In the present embodiment, described cutting blocks 3 is radially fixed to helical blade 2 end, and the length of cutting blocks 3 is more than the width of helical blade 2, make cutting blocks 3 outer end higher than helical blade 2, ensure the degree of depth of cutting blocks 3 and soil effect, so that it is guaranteed that ditching depth reaches preset value, the seamed edge of cutting blocks 3 can arrange the blade of cutting soil, the length of cutting blocks 3 should be greater than the radius of turn of helical blade 2 simultaneously, makes cutting blocks extend radially out along helical blade 2.
In the present embodiment, an a length of pitch of described helical blade 2 or multiple pitch, volume according to trench digging machine and need the soil hardness of trench digging, determine the length of helical blade 2, when the soil needing operation is softer, the helical blade 2 that pitch number is more should be used, and then increase helical blade 2 and the axial thrust produced during soil effect.
In the present embodiment, described helical blade 2 is alternatively the sector less than a pitch;When the soil hardness of trench digging machine operation is moderate, the sector less than a pitch can be used, thus reduce the volume of cutter, improve the compactedness of rotary cultivator.
In the present embodiment, described cutting blocks 3 is rectangular structure, due to cutting blocks during trench digging by by powerful soil impulsive force, cutting blocks 3 intensity of rectangular structure is higher, it is possible to avoid fractureing in trench digging effect.
In the present embodiment, described cutting blocks 3 by welding or is shaped in helical blade 2 end, it is ensured that cutting blocks 3 and the bonding strength of helical blade 2, it is to avoid cutting blocks 3 departs from effect from helical blade.
Finally illustrate is, above example is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail with reference to preferred embodiment, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent, without deviating from objective and the scope of technical solutions of the utility model, it all should be contained in the middle of right of the present utility model.