CN205288554U - Hammer of grinder - Google Patents

Abstract

The utility model provides a hammer of grinder, includes flaky hammer leaf parent, the one end of hammer leaf parent is equipped with the pinhole, and the equal build -up welding of terminal surface has a wear -resistant material before two work terminal surfaces of the other end of hammer leaf parent and the work, wear -resistant material is tungsten carbide alloy etc. And the work terminal surface becomes the inclined plane, condenses naturally after being melted by the tungsten carbide, and relatively smoothly, the both sides of work terminal surface are by tungsten carbide fracture formation, relatively roughly. Make the method of above -mentioned hammer leaf: earlier produce a clamping modules with metal material, is pressed from both sides when tight when the hammer leaf, can be on the hammer leaf of closely arranging the build -up welding tungsten carbide, the mould that stirs again can be at another terminal surface of hammer leaf to reach the preceding terminal surface at the hammer leaf, the build -up welding tungsten carbide after trilateral carbide condenses, takes out the hammer leaf respectively, adopts the chisel, chisels hammer leaf a slice of arranging, adopts this method to produce the utility model discloses a hammer leaf.

Description

A kind of hammer leaf of pulverizer

Technical field

This utility patent relates to the hammer leaf of a kind of pulverizer, especially for use in the hammer leaf in droplet-shaped pulverizer, vertical crusher, dual-rotor crushing machine, multi-cavity grinder, washboard-type pulverizer, pulverizer without sieve etc.

Background technology

Hammer mills of the prior art is rectangle lamellar, as shown in Figure 1, one end of this hammer leaf is provided with pin-and-hole (1), effect can be by pin rod, screws etc. are connected with rotor, the other end of hammer leaf is crushed work end face (3), usual hammer leaf parent (2) adopts ordinary steel, operative end surface (3) adopts the high-abrasive material built-up welding such as tungsten carbide to form, whole surface is done comentation hardening and is processed, adopt little iron plate suitably to cover on pin-and-hole (1) surface, cover shape and see the dotted line of pin-and-hole (1) periphery, it is not hardened to keep pin-and-hole (1) periphery to have certain toughness. pin-and-hole and operative end surface can also manufacture two ends symmetry, can change the other end and use after the abrasion of one end. hammer leaf as pulverizer important process parts, it is primarily present the problem that crush efficiency is low, service life is short, one of reason, common hammer leaf operative end surface is into plane, during knocking material, before being pushed to by material, material is made to produce the high-speed motion with hammer leaf homophase, form the material ring rotated at pulverizer inner chamber, reduce the knocking speed difference of follow-up hammer leaf and material, reduce crush efficiency, although two is common hammer leaf operative end surface Tungsten Carbide Surfacing, the favourable service life extending hammer leaf, but it is subject to material frontal impact for a long time, it is easy to there is the phenomenon that tungsten carbide fine grained comes off. therefore, are difficult to there is great breakthrough for a long time in hammer mills crush efficiency and service life.

Utility model content

This utility patent purpose is to provide the hammer leaf of a kind of pulverizer that can improve crush efficiency and increase the service life.

For achieving the above object, this utility patent provides techniques below scheme:

The essence of this programme, one is will by hammer leaf front working end face, it is fabricated to inclined-plane, during knocking material, push material to side, reduce the movement velocity that material follows hammer leaf to rotate, add the knocking speed difference of follow-up hammer leaf and material, improve crush efficiency, simultaneously, owing to operative end surface is inclined-plane, reduce direct impulsive force, hammer leaf is greatly prolonged service life, its feature is as follows: the hammer leaf (Figure 1A) of a kind of pulverizer, hammer leaf parent (2) including lamellar, one end of described hammer leaf parent is provided with pin-and-hole (1), two operative end surface (3) of the other end of hammer leaf parent and working front edge face (4) are all piled and are welded with high-abrasive material, described high-abrasive material is diamondite etc.Operative end surface (3) becomes inclined-plane (Figure 1B), the angle �� of inclined-plane and hammer leaf parent plane is between 30-60 degree, operative end surface (3) condenses after being melted by tungsten carbide naturally, smoother, the both sides (5) of operative end surface (3), broken to form by the tungsten carbide of heap postwelding, relatively rough. �� is the angle of operative end surface and hammer leaf plane, angle can left tiltedly (Figure 1B), it is possible to right tiltedly (Fig. 3), it is also possible to be symmetrically trapezoidal (Fig. 4). It is symmetrical that hammer leaf can also make pin-and-hole and operative end surface two ends, so, can change the other end and use after the abrasion of one end.

This hammer leaf shape seems simple, but owing to the tungsten carbide of high temperature melting is level, and hammer leaf cutting edge is inclined-plane, and be sharp, therefore how making is a difficult problem. this utility patent provides a kind of method for manufacturing above-mentioned hammer leaf: first produce a kind of clamping mold (Fig. 5) with metal material, mould is by mold (6), oblique angle sliding block (8), rotatable push rods (9) etc. form, wherein, rotatable screw putter (9) is connected with the screwed hole of one end of mold (6), one end of push rod (9) is hands wheel, the other end adopts ten thousand Xiang Jie mechanisms to be connected with oblique angle sliding block (8), during the handwheel of rotating push rod (9), oblique angle sliding block (8) can be driven to move left and right, it is moved to the left and can clamp the oblique hammer leaf group (7) laid, move right and can unclamp hammer leaf. the gradient of oblique angle sliding block (8) is between 30-60 degree, the hypotenuse angle of endoporus one end of mold (6) is also consistent with the gradient of oblique angle sliding block (8), when hammer leaf is clamped, hammer leaf is also arranged in identical angle, so, can at compact arranged hammer leaf upper end Tungsten Carbide Surfacing, the tungsten carbide of high temperature melting, the state of horizontal plane can be formed on surface. after condensing Deng tungsten carbide, stir mould again, can in the other end of hammer leaf, and the front end face at hammer leaf, Tungsten Carbide Surfacing respectively, after the carbides of three condense, unscrew push rod (9) hands wheel, hammer leaf group is taken out, adopt chisel, the hammer leaf of arrangement is chiseled one by one, owing to tungsten carbide is fragility, chisel and be easy to, hammer leaf after chiseling, the cutting edge of tapered plane is defined in operative end surface (3), smooth surface, and intersect with operative end surface side (5), form the sharp mouth that puts the first edge on a knife or a pair of scissors, operative end surface side (5) is formed by tungsten carbide fracture, it is coarse. select the gradient of different mold (6) interior angles and oblique angle sliding block (8), thus it is possible to vary the gradient of hammer leaf cutting edge, finally carry out hardened case process again. when producing trapezoidal hammer leaf, it is possible to adopt secondary clamping, welding. adopt this manufacturing process, it is possible to produce the hammer leaf of this utility patent. in this manufacturing process, it is also possible to the clamping tool similar by other, for instance, it is possible to punch in mold (1) another section, utilize push rod (3), by hammer leaf by hammer leaf pin-and-hole, by hammer leaf clamping etc. additionally, hammer leaf can also first be processed into inclined-plane (Fig. 2 A, Fig. 2 B), the two sides length of such operative end surface side (5) is the same.

Accompanying drawing explanation

Figure 1A is hammer slice schematic diagram.

Figure 1B is the sectional view of Figure 1A.

Fig. 2 A is the figure after hammer leaf is first processed.

Fig. 2 B is the sectional view of Fig. 2 A.

Fig. 3 is two operative end surface is right oblique hammer leaf figure.

Fig. 4 is two operative end surface is symmetrical hammer leaf figure.

Fig. 5 is that hammer leaf is by the schematic diagram of mold cramping.

Fig. 6 is the top view of Fig. 5.

Fig. 7 is hammer leaf by after mold cramping, the schematic diagram of Tungsten Carbide Surfacing.

Fig. 8 is the top view of Fig. 7.

Detailed description of the invention:

Below in conjunction with the embodiment given by accompanying drawing, this utility patent is further described:

A kind of hammer leaf (Fig. 1) of pulverizer, including lamellar hammer leaf parent (2), one end of described hammer leaf parent is provided with pin-and-hole (1), and two end faces (3) of the other end working area of described hammer leaf parent and front end face (4) are all piled and be welded with high-abrasive material. Described high-abrasive material is tungsten carbide alloy material. Operative end surface (3) becomes inclined-plane (Fig. 2), and the angle �� on inclined-plane is 55 degree, and operative end surface condenses after being melted by tungsten carbide naturally, surface smoother, in the both sides (5) of operative end surface, tungsten carbide break to form, relatively rough.

The hammer leaf manufacture method of this utility patent is: first become a kind of clamping mold (Fig. 5) by metal material processing, mould is by mold (6), oblique angle sliding block (8), rotatable push rods (9) etc. form, wherein, the screwed hole of one end of rotatable screw putter (9) traverse mold (6), it is connected with mold (6), one end of push rod (9) is hands wheel, the other end adopts ten thousand phase joints to be connected with oblique angle sliding block (8), the hands wheel of rotating push rod (9), oblique angle sliding block (8) can be driven to move left and right, see in Fig. 5, arrow in sliding block (8). it is moved to the left and can clamp the oblique hammer leaf (7) laid, move right and can unclamp hammer leaf. the operative end surface that hammer leaf adopts first is processed into 55 degree of inclined-plane, and so after processing, the thickness of side (5) tungsten carbide of operative end surface is the same. the gradient of oblique angle sliding block (8) is 55 degree, the hypotenuse angle of endoporus one end of mold (1) is also 55 degree, when hammer leaf is clamped, hammer leaf operative end surface forms a plane, can at compact arranged hammer leaf operative end surface Tungsten Carbide Surfacing, tungsten carbide after high temperature melting, can form horizontal plane, see Fig. 7, Fig. 8 (black part) on surface. after condensing Deng tungsten carbide, pass through turnover mould, it is possible at the another side of hammer leaf, and the front end face at hammer leaf, Tungsten Carbide Surfacing respectively. after carbide condenses, unscrew push rod (3) handwheel, hammer leaf is taken out, adopt chisel, the hammer leaf of arrangement is chiseled one by one. owing to tungsten carbide is fragility, it is easy to chisel. the hammer leaf operative end surface made forms into sharp cutting edge, and operative end surface condenses after being melted by tungsten carbide naturally, surface smoother, and operative end surface both sides (5) are broken to form by tungsten carbide, relatively rough. finally carry out hardened case process again. so, complete manufacture method is defined.

Can first carrying out oblique angle processing (Fig. 2 A, Fig. 2 B) in hammer leaf parent operative end surface, it is possible to do not process, two operative end surface can be processed into parallel, and angle is on a left side, or on the right side, or symmetrical. Hammer leaf may be used without two ends the scheme of pin-and-hole and working area, as long as at operative end surface Tungsten Carbide Surfacing alloy and form tapered plane, all within the coverage of this utility patent. Any other adopts other flexible a little clamping mold, first built-up welding to chisel again, and the processing method forming oblique operative end surface broadly falls into the coverage of this utility patent. The hammer leaf of the pulverizer of any other form, such as the hammer leaf on droplet-shaped pulverizer, vertical crusher, dual-rotor crushing machine, multi-cavity grinder, atomizer etc., all employing the technical program, broadly fall into the coverage of this utility patent.

Claims (2)

1. the hammer leaf of a pulverizer, including lamellar hammer leaf parent (2), wherein there is pin-and-hole (1) one end, two operative end surface (3) of the other end and front end face (4) build-up wear-resistant material diamondite, it is characterized in that operative end surface (3) bevel, and being formed after naturally condensing by Tungsten Carbide Surfacing alloy with front end face (4), the both sides (5) of operative end surface (3) are broken to form by tungsten carbide.

2. the hammer leaf of a kind of pulverizer as claimed in claim 1, it is characterised in that operative end surface (3) bevel, the angle �� of inclined-plane and hammer leaf parent plane is between 30-60 degree.