CN207769907U - A kind of annular hammer for coal breaker - Google Patents

Abstract

The utility model discloses a kind of annular hammers for coal breaker, including hammer body, the middle part of hammer body, which is run through, offers middle axial trough, the inner rotation of middle axial trough is inserted with central shaft, the internal symmetry of hammer body offers first gear slot, surface fixing sleeve of the central shaft inside middle axial trough is equipped with driving gear, and driving gear rotates the inside for being fastened on first gear slot, and the hammer body outer surface connection of plane where the first gear slot offers second gear slot；The rotation rotation of broken coal tooth is driven by the way that driving gear is arranged, and broken coal tooth is in contact with the coal inside coal breaker, and then pulverize the larger coal of bore；Since after broken coal, there are the broken coals that many diameters are still larger, and when broken coal tooth can not pulverize, therefore compact disc is equipped among adjacent broken coal tooth, the compact disc broken coal smaller with diameter is connected setting, and is compacted broken coal by the effect of external force, is then crushed again by broken coal tooth.

Description

A kind of annular hammer for coal breaker

Technical field

The utility model is related to coal breaker technical field, specially a kind of annular hammer for coal breaker.

Background technology

Coal breaker is the important equipment of coal-fired power plant's fuel system, this is because steam coal is usually not by classification Raw coal, raw coal size do not meet the requirement of steam coal, needs that by coal breaker steam coal requirement will not be met mostly Coal crusher is at certain granularity, and to meet the requirement of boiler combustion, general coal breaker is all annular hammer crusher, still The hammer of this coal breaker causes its energy consumption larger and very dangerous, exists in addition since itself is directly driven by motor Be crushed it is inconvenient practical when the smaller coal of some diameters, thus it is proposed that a kind of annular hammer for coal breaker is for solving The above problem.

Utility model content

The purpose of this utility model is to provide a kind of annular hammers for coal breaker, to solve to carry in above-mentioned background technology The problem of going out.

To achieve the above object, the utility model provides the following technical solutions：A kind of annular hammer for coal breaker, including Hammer body, through middle axial trough is offered, the inner rotation of the middle axial trough is inserted with central shaft, the hammer body at the middle part of the hammer body Internal symmetry offer first gear slot, surface fixing sleeve of the central shaft inside middle axial trough is equipped with driving gear, institute The inside that driving gear rotation is fastened on first gear slot is stated, the hammer body outer surface connection of plane where the first gear slot opens up There is a second gear slot, the side of the second gear slot is connected setting with first gear slot, and the middle part of the second gear slot is hung down Straight welding is equipped with shaft, and the surface pivots of the shaft are arranged with broken coal tooth, the table on the surface and driving gear of the broken coal tooth Face is meshed setting, bull stick slot is offered in the middle part of the hammer body, the bull stick slot is described between adjacent two second gears slot Bull stick is fixed in the middle part of bull stick slot, the surface pivots of the bull stick are arranged with compact disc, and the end of the hammer body offers Turntable slot, the end of the central shaft, which is integrally formed, is equipped with turntable, and the turntable rotation is fastened on the inside of turntable slot.

Preferably, the hammer body is the cylindrical, metal structures of internal hollow out, the central axle external surface and middle axial trough Inner wall is tangent, and the end of middle axial trough and its part that is connected with first gear slot are installed with bearing.

Preferably, the maximum gauge of the driving gear is more than the diameter of broken coal tooth, at least 4, broken coal tooth, and two Two pile the both sides for being distributed in driving gear.

Preferably, the diameter of the compact disc is more than the diameter of driving gear, and table of the compact disc inside bull stick slot The tangent setting of inner wall in face and bull stick slot, the maximum that maximum cross-section area of the compact disc in hammer body outer surface is more than broken coal tooth are cut Face area.

Preferably, the upper end with the end of middle axial trough of the turntable slot, which are connected, is arranged surface and the turntable phase of the turntable slot It cuts, and small ball is equipped in tangent part.

Compared with prior art, the utility model has the beneficial effects that：

1. central shaft is internally provided with driving gear in first gear slot, band by driving the rotation of driving gear The rotation of broken coal tooth set by dynamic hammer body surface drives the rotation of broken coal tooth to rotate by the way that driving gear is arranged, and broken coal tooth with Coal inside coal breaker is in contact, and then pulverizes the larger coal of bore；

2. due to after broken coal, there are the broken coals that many diameters are still larger, and when broken coal tooth can not pulverize, therefore It is equipped with compact disc among adjacent broken coal tooth, the compact disc broken coal smaller with diameter is connected setting, and the effect for passing through external force Broken coal is compacted, is then crushed again by broken coal tooth.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model structure front cross-sectional schematic diagram；

Fig. 3 is the utility model texture edge schematic cross-sectional view.

In figure：1 hammer body, 2 middle axial troughs, 3 central shafts, 4 driving gears, 5 first gear slots, 6 second gear slots, 7 shafts, 8 Broken coal tooth, 9 bull stick slots, 10 bull sticks, 11 compact discs, 12 turntables, 13 turntable slots.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of annular hammer for coal breaker, including hammer Body 1, through middle axial trough 2 is offered, the inner rotation of middle axial trough 2 is inserted with central shaft 3, the inside pair of hammer body 1 at the middle part of hammer body 1 Title offers first gear slot 5, and surface fixing sleeve of the central shaft 3 inside middle axial trough 2 is equipped with driving gear 4,4 turns of driving gear 1 outer surface of the hammer body connection of the dynamic inside for being fastened on first gear slot 5, the 5 place plane of first gear slot offers the second tooth Race 6, the side of second gear slot 6 are connected setting with first gear slot 5, and the middle part vertical welding of the second gear slot 6 is set There are shaft 7, the surface pivots of shaft 7 to be arranged with broken coal tooth 8, the surface of broken coal tooth 8 is meshed with the surface of driving gear 4 to be set It sets, the middle part of hammer body 1 offers bull stick slot 9, and the bull stick slot 9 is between adjacent two second gears slot 6, the middle part of bull stick slot 9 It is fixed with bull stick 10, the surface pivots of bull stick 10 are arranged with compact disc 11, and the end of hammer body 1 offers turntable slot 13, center The end of axis 3, which is integrally formed, is equipped with turntable 12, and turntable 12 rotates the inside for being fastened on turntable slot 13.

Further, hammer body 1 is the cylindrical, metal structures of internal hollow out, the inner wall of central shaft 3 outer surface and middle axial trough 2 It is tangent, and the end of middle axial trough 2 and its part that is connected with first gear slot 5 are installed with bearing, driving gear 4 Maximum gauge is more than the diameter of broken coal tooth 8, at least 4, the broken coal tooth 8, and piles the both sides for being distributed in driving gear 4 two-by-two； The inside of set hammer body 1 offers middle axial trough 2, and the inner rotation of middle axial trough 2 is inserted with central shaft 3, and the one of the central shaft 3 It holds and is connected with the motor set by outside so that it is rotated, and central shaft 3 is internally provided with driving tooth in first gear slot 5 Wheel 4 drives the rotation of broken coal tooth 8 set by 1 surface of hammer body, by being arranged actively by the rotation for driving driving gear 4 Gear 4 drives the rotation rotation of broken coal tooth 8, and broken coal tooth 8 is in contact with the coal inside coal breaker, and then it is larger to pulverize bore Coal.

Further, the diameter of compact disc 11 is more than the diameter of driving gear 4, and the compact disc 11 is inside bull stick slot 9 Surface and bull stick slot 9 the tangent setting of inner wall, the compact disc 11 1 outer surface of hammer body maximum cross-section area be more than broken coal tooth 8 maximum cross-section area, the diameter of compact disc 11 is more than the diameter of driving gear 4, and the compact disc 11 is inside bull stick slot 9 The tangent setting of inner wall on surface and bull stick slot 9, maximum cross-section area of the compact disc 11 in 1 outer surface of hammer body are more than broken coal tooth 8 Maximum cross-section area；Since after broken coal, there are the broken coals that many diameters are still larger, and when broken coal tooth 8 can not pulverize, Therefore it is equipped with compact disc 11 among adjacent broken coal tooth 8, the broken coal smaller with diameter of compact disc 11 is connected setting, and passes through Broken coal is compacted by the effect of external force, is then crushed again by broken coal tooth 8.

Operation principle：The inside of set hammer body 1 offers middle axial trough 2 in the utility model, and the inside of middle axial trough 2 turns Dynamic to be inserted with central shaft 3, one end of the central shaft 3 is connected with the motor set by outside so that it is rotated, central shaft 3 It is internally provided with driving gear 4 in first gear slot 5, is driven set by 1 surface of hammer body by driving the rotation of driving gear 4 The rotation for setting broken coal tooth 8 drives the rotation of broken coal tooth 8 to rotate by the way that driving gear 4 is arranged, and inside broken coal tooth 8 and coal breaker Coal be in contact, and then pulverize the larger coal of bore, due to after broken coal, there are still larger broken of many diameters Coal, and when broken coal tooth 8 can not pulverize, therefore it is equipped with compact disc 11 among adjacent broken coal tooth 8, compact disc 11 and diameter are smaller Broken coal be connected setting, and broken coal is compacted by the effect of external force, is then crushed again by broken coal tooth 8.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of annular hammer for coal breaker, including hammer body (1), it is characterised in that：The middle part of the hammer body (1), which is run through, to be opened up There are middle axial trough (2), the inner rotation of the middle axial trough (2) to be inserted with central shaft (3), the internal symmetry of the hammer body (1) opens up There is first gear slot (5), the central shaft (3) is equipped with driving gear (4) in the internal surface fixing sleeve of middle axial trough (2), described Driving gear (4) rotates the inside for being fastened on first gear slot (5), hammer body (1) appearance of plane where the first gear slot (5) Face connection offers second gear slot (6), and the side of the second gear slot (6) is connected setting with first gear slot (5), this The middle part vertical welding of second gear slot (6) is equipped with shaft (7), and the surface pivots of the shaft (7) are arranged with broken coal tooth (8), The surface of the broken coal tooth (8) is meshed setting with the surface of driving gear (4), and bull stick is offered in the middle part of the hammer body (1) Slot (9), the bull stick slot (9) are fixed with bull stick between adjacent two second gears slot (6) in the middle part of the bull stick slot (9) (10), the surface pivots of the bull stick (10) are arranged with compact disc (11), and the end of the hammer body (1) offers turntable slot (13), the end of the central shaft (3), which is integrally formed, is equipped with turntable (12), and turntable (12) rotation is fastened on turntable slot (13) Inside.

2. a kind of annular hammer for coal breaker according to claim 1, it is characterised in that：The hammer body (1) is inside The cylindrical, metal structures of hollow out, central shaft (3) outer surface and the inner wall of middle axial trough (2) are tangent, and the end of middle axial trough (2) Portion and its part that is connected with first gear slot (5) are installed with bearing.

3. a kind of annular hammer for coal breaker according to claim 1, it is characterised in that：The driving gear (4) Maximum gauge is more than the diameter of broken coal tooth (8), at least 4, the broken coal tooth (8), and piles be distributed in driving gear (4) two-by-two Both sides.

4. a kind of annular hammer for coal breaker according to claim 1, it is characterised in that：The compact disc (11) it is straight Diameter is more than the diameter of driving gear (4), and the compact disc (11) is in the inner wall on bull stick slot (9) internal surface and bull stick slot (9) Tangent setting, maximum cross-section area of the compact disc (11) in hammer body (1) outer surface are more than the maximum cross-section face of broken coal tooth (8) Product.

5. a kind of annular hammer for coal breaker according to claim 1, it is characterised in that：The turntable slot (13) it is upper End be connected with the end of middle axial trough (2) the setting turntable slot (13) surface and turntable (12) it is tangent, and set in tangent part There is small ball.