CN206090686U - Bucket tooth of excavator - Google Patents

Abstract

The utility model discloses a bucket tooth of excavator, it includes prong portion and connecting portion. Prong portion includes the thick flank of tooth and the thin flank of tooth and lip that relative up -down set up, and the thin flank of tooth is the curved surface of undercut, the relative both sides that set up at the thick flank of tooth. The lip include preceding terminal surface and with the transition face of the thick flank of tooth and thin flank of tooth smooth connection. Be equipped with the socket in the connecting portion, be equipped with the lug of ranging back in the vertical direction in one side edge of connecting portion terminal surface, be equipped with relative first auricle and second auricle in the vertical direction in opposite side edge. Be equipped with the strengthening rib between first auricle and the second auricle, first auricle, strengthening rib and second auricle formula structure as an organic whole. Be equipped with first through -hole on the first auricle, be equipped with semicircular groove on the strengthening rib, be equipped with the second through -hole on the second auricle, first through -hole, semicircular groove and the coaxial setting of second through -hole. Bucket tooth intensity had both been guaranteed through setting up relative thickness, the thin flank of tooth to the present case, had reduced processing technology again, the bucket tooth through the pegging on the toothholder, the dismouting is very convenient.

Description

A kind of excavator bucket teeth

Technical field

This utility model is excavated in belonging to engineering machinery and mining machinery, the parts technology neck of loading operation machinery A kind of domain, and in particular to excavator bucket teeth.

Background technology

Excavator is a kind of conventional engineering machinery, and it is higher or lower than the thing for holding machine side that excavator main to be used bucket to excavate Material.The Main Function of the bucket tooth on bucket is to break material, therefore when excacation is carried out, the impulsive force that bucket tooth is subject to is very Greatly.When the material encountered is more hard, or during misoperation, bucket tooth is very easy to damaged and fractures.Therefore, bucket tooth is typically adopted Made with special wear-resisting metal material.At present, relatively conventional on market bucket tooth component all includes bucket tooth, toothholder and pin, Toothholder is welded on bucket, and bucket tooth is fixedly connected on toothholder by pin.Bucket tooth is typically by crown, work surface and cavity structure Into.

201110095396.9 disclosing a kind of power shovel and its bucket tooth, bucket tooth includes：Wedge shape bucket tooth body；Top Thick tooth surface, positioned at the upper surface of the wedge shape bucket tooth body；The thin tooth surface in top, be by the wedge-shaped body upper table towards The curved surface that lower recess is formed, positioned at the both sides of top thickness tooth surface, projection of the curved surface in perpendicular is to be with The view field of area.The upper and lower surface structures of the case bucket tooth are different, increased difficulty of processing, are unfavorable for production.

The content of the invention

The utility model proposes a kind of excavator bucket teeth, by arranging relative thick, the thin flank of tooth, both ensure that bucket tooth was strong Degree, reduces processing technique again, and bucket tooth is connected on toothholder by pin, dismounts very convenient.

What the technical solution of the utility model was realized in：

A kind of excavator bucket teeth, which includes tooth tip portion and connecting portion, and the tooth tip portion includes the thick tooth being oppositely arranged up and down Face, the thin flank of tooth being oppositely arranged up and down and lip, the thin flank of tooth is the curved surface to lower recess, is oppositely arranged on the thick flank of tooth Both sides, the lip includes front end face and the transition face in smoothing junction with the thick flank of tooth and the thin flank of tooth, the front end face Both sides are provided with rounded corner, and a socket is provided with the connecting portion, and the side of the connection end surface is vertically provided with one The lug for extending back, opposite side are vertically provided with the first relative auricle and the second auricle, first auricle and It is provided with a reinforcement between second auricle, first auricle, reinforcement and the second auricle are integral type structure, first ear Piece is provided with a first through hole, and the reinforcement is provided with a semicircle groove, and second auricle is provided with one second through hole, institute State first through hole, semicircle groove and the second through hole to be coaxially disposed.

In excavator bucket teeth of the present utility model, the second through hole inner face on second auricle is provided with counterbore.

In excavator bucket teeth of the present utility model, the semicircle groove side is provided with the earflap for stretching out.

Implement this excavator bucket teeth of the present utility model, have the advantages that：This case by arrange relative thickness, The thin flank of tooth, both ensure that the mining effect of bucket tooth intensity and bucket tooth, reduce processing technique again, substantially increase the processing of bucket tooth Efficiency, bucket tooth are connected on toothholder by pin, are dismounted very convenient.

Description of the drawings

Fig. 1 be this excavator bucket teeth of the present utility model to schematic diagram；

Fig. 2 be this excavator bucket teeth of the present utility model it is another to schematic diagram；

Fig. 3 is the schematic side view of this excavator bucket teeth of the present utility model；

Fig. 4 be Fig. 3 in A-A to cross-sectional schematic.

Specific embodiment

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe.

Of the present utility model this excavator bucket teeth as shown in Figures 1 to 4, which includes tooth tip portion 1 and connecting portion 2, bucket tooth For integral type foundry goods.Tooth tip portion 1 is the most strong position of power that is hit, and is very easy to abrasion.The tooth tip portion 1 includes relative up and down The thick flank of tooth 11 of setting, the thin flank of tooth 12 being oppositely arranged up and down and lip 13.The thin flank of tooth 12 is the curved surface to lower recess, phase Both sides to being arranged on the thick flank of tooth 11, the thin flank of tooth 12 are in smoothing junction with the thick flank of tooth 11, it is ensured that the intensity of bucket tooth, dispersion The stress point of bucket tooth.In bucket tooth stress, power can be preferably unloaded, reduce bucket tooth abrasion, extend the service life of bucket tooth.The lip Portion 13 includes front end face 130 and the transition face 131 with 12 smooth connection of the thick flank of tooth 11 and the thin flank of tooth, the front end face 130 both sides are provided with rounded corner 132.Transition face 131 is obliquely installed, and front end face 130 has one fixed width so that lip 13 is in blunt Angle, it is ensured that the intensity of lip 13.130 both sides of front end face arrange rounded corner 132, it is possible to reduce abrading section, reduce excavating resistance Power, improves the mining effect of bucket tooth.A socket 21 is provided with the connecting portion 2, toothholder is may be inserted in the socket 21.It is described The side of 2 end face of connecting portion is vertically provided with a lug 22 for extending back, and the lug 22 props up the company of toothholder just Junction.Opposite side is vertically provided with the first relative auricle 23 and the second auricle 24, first auricle 23 and second A reinforcement 25 is provided between auricle 24.First auricle 23, reinforcement 25 and the second auricle 24 are integral type structure.It is described First auricle 23 is provided with a first through hole 230, and the reinforcement 25 is provided with a semicircle groove 250, second auricle 24 One second through hole 240 is provided with, 240 inner face of the second through hole on second auricle 24 is provided with counterbore 241, described first Through hole 230, semicircle groove 250 and the second through hole 240 are coaxially disposed.Protuberance on toothholder is provided with and 250 phase of semicircle groove The groove matched somebody with somebody, constitutes pin-and-hole just, in counterbore 241 is put into jump ring, toward in pin-and-hole squeezes into pin, it is possible to by bucket tooth and toothholder Link together, and can guarantee that pin does not stress or stress is less, extend the service life of pin.

Wherein, 250 side of the semicircle groove is provided with the earflap 26 for stretching out, and the earflap 26 can wrap up pin just Son so that pin is difficult to rock.So far, the present utility model purpose is accomplished.

Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in this utility model Protection domain within.

Claims (3)

1. a kind of excavator bucket teeth, it is characterised in that including tooth tip portion and connecting portion, the tooth tip portion includes being oppositely arranged up and down The thick flank of tooth, the thin flank of tooth being oppositely arranged up and down and lip, the thin flank of tooth is the curved surface to lower recess, is oppositely arranged on described The both sides of the thick flank of tooth, the lip include front end face and the transition face in smoothing junction with the thick flank of tooth and the thin flank of tooth, described Front end face both sides are provided with rounded corner, and a socket is provided with the connecting portion, and the side of the connection end surface is vertically gone up It is provided with a lug for extending back, opposite side is vertically provided with the first relative auricle and the second auricle, described first A reinforcement is provided between auricle and the second auricle, first auricle, reinforcement and the second auricle are integral type structure, described First auricle is provided with a first through hole, and the reinforcement is provided with a semicircle groove, and second auricle is provided with one second Through hole, the first through hole, semicircle groove and the second through hole are coaxially disposed.

2. excavator bucket teeth according to claim 1, it is characterised in that the second through hole inner face on second auricle It is provided with counterbore.

3. excavator bucket teeth according to claim 1, it is characterised in that the semicircle groove side is provided with and stretches out Earflap.