CN202165082U - Cutting tooth - Google Patents

Abstract

The utility model relates to a cutting tooth, which comprises a tooth head, a tooth neck, a tooth handle and a spring piece. The tooth head is in the shape of a bullet head and connected with the tooth neck through a clamping groove, metal glue is sprayed at the position of a gap between the tooth head and the tooth neck to reinforce connection strength, the spring piece is sleeved on the tooth handle, and the tooth handle is inserted onto a tooth seat of a rotary digging machine and fixed through the spring piece. The tooth head is made of hard alloy materials, the tooth neck is made of manganese steel, and the spring piece and the tooth handle are made of cast iron. The cutting tooth utilizes the large-area tooth head made of hard alloy to improve the abrasion resistance of the cut tooth and working efficiency, enables a drilling rod to be evenly stressed and not apt to break, and simultaneously lowers energy consumption.

Description

A kind of pick

Technical field

The utility model belongs to the excavation machinery fitting field, relates in particular to the pick that a kind of mining machinery is used.

Background technology

The pick of Spiral digging machine, development machine is very important parts, and the height of its life-span length and cut efficient directly influences digging efficient, pick scrap reason except wearing and tearing and fractureing, falling that tooth and hard alloy head burst apart also is two main causes.As shown in Figure 1, existing pick mainly is that hard alloy head is welded on the tooth neck, and in use the welding portion easy abrasion causes hard alloy head to burst apart or comes off.

Summary of the invention

The utility model technical problem to be solved provides the pick that a kind of tooth head and tooth handle are connected through draw-in groove, with application life of improving pick and the energy consumption when reducing work.

The utility model solves the technical scheme that its technical problem adopted: a kind of pick; Comprise tooth head, tooth neck, tooth handle and spring leaf; Described tooth head is a bullet shape, is connected through draw-in groove with the tooth neck, and place, the slit matel coated glue between described tooth head and the tooth neck is to strengthen bonding strength; Said spring leaf is enclosed within on the tooth handle, the tooth handle is inserted on the toothholder of Spiral digging machine and through spring leaf to fix.

Described tooth head is made by Hardmetal materials, and said tooth neck is made by manganese steel, and spring leaf and tooth handle are made by cast iron.

Beneficial effect

The utility model in use adopts the tooth head of bullet shape, and the resistance that this shape receives when helping disperseing pick work improved the abrasion resistance and the operating efficiency of pick, and stressed evenly being not easy of toothholder fractures.From mechanical energy consumption aspect, the use of the utility model can reduce machinery exerting oneself when work, thereby reduces oil consumption, and good energy-saving effect is arranged.

Description of drawings

The former technical pattern sketch map of Fig. 1.

Fig. 2 the utility model general structure sketch map.

1. tooth head 2. tooth necks 3. spring leafs 4. tooth handles

Fig. 3 the utility model partial structurtes enlarged diagram.

5. draw-in groove

The specific embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.

Embodiment 1

Like Fig. 2-shown in Figure 3; The utility model comprises tooth head, tooth neck, tooth handle and spring leaf; Described tooth head 1 is a bullet shape; Be connected through draw-in groove 5 with tooth neck 2, place, slit between described tooth head 1 and the tooth neck 2 matel coated glue, the tube that the tooth handle 4 of the described pick of the utility model is inserted into Spiral digging machine, development machine bore on a plurality of toothholders of lower edge and are fixing through spring leaf 3.During work, the moving fixing a plurality of picks of tube drilling rotate together, and rock is carried out cut.

Claims (2)

1. pick; Comprise tooth head, tooth neck, tooth handle and spring leaf; It is characterized in that: described tooth head (1) is a bullet shape, is connected place, the slit matel coated glue between described tooth head (1) and the tooth neck (2) through draw-in groove (5) with tooth neck (2); Said spring leaf (3) is enclosed within on the tooth handle (4), and tooth handle (4) is inserted on the toothholder of Spiral digging machine and is fixing through spring leaf (3).

2. a kind of pick as claimed in claim 1 is characterized in that: described tooth head (1) is made by Hardmetal materials, and said tooth neck (2) is made by manganese steel, and spring leaf (3) and tooth handle (4) are made by cast iron.

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