CN105498908A - Self-protection type rotor of hammer type crusher - Google Patents

Abstract

The invention discloses a self-protection type rotor of a hammer type crusher. The self-protection type rotor comprises a main shaft, two end discs, a plurality of hammer discs, a plurality of hammer shafts, a plurality of hammer heads, a belt wheel, a bearing and a bearing seat, wherein the hammer discs are arranged on the main shaft through a plurality of main shaft bushings at intervals; the hammer heads are alternately arranged on the corresponding hammer shafts; more than two hammer shaft holes are formed in each hammer disc; the hammer shaft holes in the two adjacent hammer discs are staggered along the circumference; each hammer shaft penetrates through the hammer shaft holes in the corresponding hammer disc; both ends of each hammer shaft are respectively connected with the two end discs; the hammer shaft bushings are respectively arranged on the hammer shafts at the two side of each hammer head; the centerline of each hammer disc is aligned with the centerline of each hammer head penetrating through the hammer shaft of the adjacent hammer disc along the radial direction; the width of each hammer head is greater than the width of the aligned hammer disc. The self-protection type rotor has the advantages that the hammer discs are protected by the rotation of the hammer heads, so that the service life of each hammer disc is prolonged, and the major economic loss and safety hidden hazards caused by frequent replacement of the hammer discs are avoided; the crushing efficiency is high.

Description

The self-shield rotor of hammer mill

Technical field

The present invention relates to a kind of rotor of hammer mill.

Background technology

It is low that hammer mill has energy consumption, and feed size is large, and the ratio of reduction is large, and the strong and kind of applicability and the advantage such as specifications and models are many, thus use very extensive in every profession and trade.Tradition hammer mill is primarily of housing, rotor, double-edged fine-toothed comb, driver part composition.Rotor is the core component of hammer mill, existing rotor, as shown in Figure 1, comprise main shaft 20, two end plate 21, several circular hammer dish 22, several hammer dish lining 23, several tup 24, several tup lining 25, several hammer axle 26, circular hammer dish 22 is placed on main shaft 20 by hammer dish lining 23 interval, tup 24 is placed on hammer axle 26 by tup lining 25 interval, and hammer dish 22 and tup 24 quantity determine according to disintegrating machine model and cracked stream kind; Circular hammer dish 22 is made by steel plate, and its thickness is thicker, and the gap between tup and tup is larger, and circular hammer dish 22 is large by the area of material impact, probability is high, wearing and tearing are large.In running, the wearing and tearing of the excircle of circular hammer dish 22 are the most serious, easily cause tup 24 to come off, gently then damage equipment, heavy then lead to great personnel casualty accidents.As changed circular hammer dish, rotor entirety must be hung out body and just can carry out outward, because rotor of hammer type crusher quality is very large, often needing to employ professional hanging device could hang out rotor.Therefore, the workload changing hammer dish is very huge, needs to stop production several days even longer time, not only takes a lot of work, time-consuming, has a strong impact on production efficiency, causes heavy economic losses to enterprise.

Summary of the invention

The object of the invention is for prior art above shortcomings; a kind of self-shield rotor of hammer mill is provided; it utilizes tup to rotate self-shield hammer dish; solve hammer dish in the hammer mill course of work owing to being subject to the direct impact of material and friction and causing the problem of damage; extend the service life of hammer dish; avoid the heavy economic losses because frequent replacing hammer dish causes and potential safety hazard, and improve crushing efficiency.

For achieving the above object, the self-shield rotor of hammer mill of the present invention, comprise main shaft, be loaded on two end plates at main shaft two ends, the several hammer dishes on main shaft are located at by several mainshaft bushing interval, several hammer axle, the several tups on each hammer axle are located at interval, belt pulley, bearing, bearing block, it is characterized in that described hammer dish is provided with plural hammer axis hole, the hammer axis hole of adjacent two hammer dishes is at circumferentially Heterogeneous Permutation, described hammer axle is through the hammer axis hole on each self-corresponding hammer dish, the two ends of hammer axle all connect with two end plates, the hammer axle of described tup both sides is equipped with hammer neck bush, the center line of each hammer dish all with through the tup center line on the hammer axle of adjacent hammer dish at radially aligned, and the width of tup is greater than the width of alignd hammer dish,

The present invention because the hammer axis hole of adjacent two hammer dishes is at circumferentially Heterogeneous Permutation, the center line of each hammer dish all with through the tup center line on the hammer axle of adjacent hammer dish at radially aligned, and the width of tup is greater than the width of alignd hammer dish; Not only the distribution of tup is more even, crushing efficiency can be improved, and during main shaft drive tup High Rotation Speed, because tup rotating diameter is greater than the maximum gauge of hammer dish, tup width is greater than hammer dish width, forms a catch net outward at hammer dish, broken material is difficult to jump bit dish, thus prevent wearing and tearing and the damage of hammer dish, extend the service life of hammer dish, avoid the heavy economic losses because frequent replacing hammer dish causes and potential safety hazard;

As a further improvement on the present invention, the termination being provided with each hammer dish of hammer axis hole is equipped with protective sleeve, each protective sleeve includes and is positioned at backplate outside termination and the connecting plate parallel with corresponding hammer dish, and backplate is provided with intrados, and protective sleeve is coupled on rotor by connecting plate;

The connecting plate of above-mentioned each protective sleeve is placed on corresponding hammer axle by through hole, the backplate of each protective sleeve is provided with the intrados mated with termination; The hammer axle of connecting plate both sides is equipped with hammer neck bush; So protective sleeve is coupled on hammer axle;

The connecting plate of above-mentioned each protective sleeve also can be connected firmly with corresponding hammer dish by the axial attachment bolt of more than two and nut; Protective sleeve is directly coupled on hammer dish;

During use, when rotor rotates broken material, the material crossing tup on a small quantity directly hits on the protective sleeve, thus reaches protection hammer dish termination and directly do not impact and damage by material, extends the service life of hammer dish; After protective sleeve wearing and tearing, only need changing protective sleeve, without the need to changing hammer dish, changing workload little, time saving and energy saving, avoid the heavy economic losses because frequent replacing hammer dish causes and potential safety hazard;

In sum; the present invention utilizes tup to rotate self-shield hammer dish; solve hammer dish in the hammer mill course of work owing to being subject to the direct impact of material and friction and causing the problem of damage; extend the service life of hammer dish; avoid the heavy economic losses because frequent replacing hammer dish causes and potential safety hazard, and crushing efficiency is high.

Accompanying drawing explanation

Fig. 1 is the front view of existing rotor of hammer type crusher.

Fig. 2 is the front view of the embodiment of the present invention one.

Fig. 3 is the outline drawing of partial structurtes in Fig. 2.

Fig. 4 is the A-A sectional view of Fig. 3.

Fig. 5 is the partial view of the embodiment of the present invention two.

Fig. 6 is the B-B sectional view of Fig. 5.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is further detailed explanation.

Embodiment one

As shown in Figures 2 to 4, the self-shield rotor of the hammer mill of the present embodiment, comprise main shaft 1, be loaded on two end plates 2 at main shaft 1 two ends, the several hammer dishes 4 and 5 on main shaft 1 are located at by several mainshaft bushing 3 interval, four hammer axles 6, several tups 7 of on each hammer axle 6 are located at interval, belt pulley 8, bearing 9, bearing block 10, described hammer dish 4 and 5 is equipped with two hammer axis holes, hammer dish 4 and 5 be polygon and be provided with major diameter to minor axis to, two hammer axis holes are all positioned at the major diameter of hammer dish 4 or 5 upwards, the major diameter of adjacent two hammer dishes 4 and 5 is to dividing equally whole circumference on radial circumference, the hammer axis hole of adjacent two hammer dishes 4 and 5 is therefore in circumferentially cross arrangement mutually, described four hammer axles 6 are through the hammer axis hole on each self-corresponding hammer dish 4 or 5, the two ends of hammer axle 6 all connect with two end plates 2, described hammer axle 6 is equipped with hammer neck bush 11 in tup 7 both sides, the center line of each hammer dish 4 or 5 axis all with the center line through the tup 7 on the hammer axle 6 of adjacent hammer dish 5 or 4 at radially aligned, and the width of tup 7 is greater than the width of alignd hammer dish 4 or 5, the two ends being provided with each hammer dish 4 or 5 of hammer axis hole is equipped with protective sleeve 12, each protective sleeve 12 includes and is positioned at backplate 12a outside termination and the connecting plate 12b parallel with corresponding hammer dish, backplate 12a is provided with the intrados mated with termination, and connecting plate 12b is connected firmly with corresponding hammer dish 4 or 5 by two axial attachment bolts 13 and nut 14,

Hammer dish 4 and 5 of the present invention is polygon, can save material, alleviate deadweight, due to adjacent two hammer dishes 4, the hammer axis hole of 5 is in circumferentially cross arrangement, the center line of each hammer dish 4 or 5 all with through the tup center line on the hammer axle 6 of adjacent hammer dish 5 or 4 at radially aligned, and the width of tup 7 is greater than the width of alignd hammer dish 4 or 5, not only the distribution of tup 7 is more even, crushing efficiency can be improved, and main shaft 1 is by hammer dish 4, 5 and hammer axle 6 when driving tup 7 High Rotation Speed, because tup 7 is positioned at the outside of hammer dish 4 and 5, its rotating diameter is greater than hammer dish 4, the maximum gauge of 5, tup 7 width is greater than the width of hammer dish 4 and 5, at a hammer dish 4 and 5 outer formation catch net, broken material is difficult to jump bit dish 4 and 5, the material crossing tup 7 on a small quantity directly also hits on protective sleeve 12, thus reach protection hammer dish 4, 5 directly do not impact by material, thus prevent hammer dish 4, the wearing and tearing of 5 and damage, extend the service life of hammer dish 4 and 5, the running rate of rotor and even be obtained for very big raising the service life of disintegrating machine, avoid the heavy economic losses because frequent replacing hammer dish causes and potential safety hazard,

Embodiment two

As shown in Figure 5, Figure 6, the present embodiment is only with the difference of embodiment one: the connecting plate 15b of each protective sleeve 15 is placed on corresponding hammer axle 6 by through hole, and the backplate 15a of each protective sleeve 15 is also provided with the intrados mated with the termination of hammer dish 17 or 18; The hammer axle 16 of connecting plate 15b both sides is equipped with hammer neck bush 19; So protective sleeve 15 is coupled on hammer axle 6, the effect same with protective sleeve 12 in embodiment one can be played.

Claims (4)

1. the self-shield rotor of a hammer mill, comprise main shaft, be loaded on two end plates at main shaft two ends, the several hammer dishes on main shaft are located at by several mainshaft bushing interval, several hammer axle, the several tups on each hammer axle are located at interval, belt pulley, bearing, bearing block, it is characterized in that described hammer dish is provided with plural hammer axis hole, the hammer axis hole of adjacent two hammer dishes is at circumferentially Heterogeneous Permutation, described hammer axle is through the hammer axis hole on each self-corresponding hammer dish, the two ends of hammer axle all connect with two end plates, the hammer axle of described tup both sides is equipped with hammer neck bush, the center line of each hammer dish all with through the tup center line on the hammer axle of adjacent hammer dish at radially aligned, and the width of tup is greater than the width of alignd hammer dish.

2. the self-shield rotor of hammer mill as claimed in claim 1; it is characterized in that the termination of each hammer dish being provided with hammer axis hole is equipped with protective sleeve; each protective sleeve includes and is positioned at backplate outside termination and the connecting plate parallel with corresponding hammer dish; backplate is provided with intrados, and protective sleeve is coupled on rotor by connecting plate.

3. the self-shield rotor of hammer mill as claimed in claim 2, it is characterized in that the connecting plate of described each protective sleeve is all placed on the hammer axle through correspondence hammer dish by through hole, the backplate of each protective sleeve is provided with the intrados mated with termination.

4. the self-shield rotor of hammer mill as claimed in claim 2, is characterized in that the connecting plate of each protective sleeve is connected with corresponding hammer dish by the axial attachment bolt of more than two and nut.