CN211563142U

CN211563142U - Hammer type pulverizer

Info

Publication number: CN211563142U
Application number: CN201922351798.5U
Authority: CN
Inventors: 李相国; 全光赫
Original assignee: Wanhua Ecological Board Integrated Equipment Co ltd
Current assignee: Wanhua Hexiang Group Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-25
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a hammer crusher, which comprises a shell, a rotating shaft rotationally arranged in the shell, a fixing piece sleeved on the rotating shaft, a hammer sheet connected with the fixing piece and a screen arranged between the hammer sheet and the shell, wherein the hammer sheet is used for crushing materials put into the crusher; the screen is used for screening the materials crushed by the hammer; be provided with a plurality of hammer leaf on the mounting, keeping away from of hammer leaf the tip of mounting is provided with wearing and tearing spare, wearing and tearing spare with the hammer leaf can be dismantled and be connected. Through adopting above-mentioned technical scheme, set up wearing and tearing piece on the hammer leaf, use wearing and tearing piece to strike the material and smash, change through the mode of direct change after wearing and tearing, can show the operating time and the work load that reduce the hammer leaf and change to hammer mill's down time has been reduced, hammer mill's work efficiency has been improved.

Description

Hammer type pulverizer

Technical Field

The utility model relates to a rubbing crusher field, in particular to hammer mill.

Background art:

the hammer mill is a production facility that will add the material of rubbing crusher through the impact force and carry out kibbling, and the hammer mill includes rotatory rotor and sets up the hammer leaf on the rotor, and the hammer mill drives the hammer leaf through the rotor and rotates and strike the material that adds in the rubbing crusher to smash tiny material with thick material, hammer mill wide application in each industrial field, for example cement, chemical industry, electric power, metallurgy.

After a hammer blade of an existing hammer mill is used for a period of time, one corner or other parts of the hammer blade are seriously abraded, the working efficiency of the mill is greatly influenced after the hammer blade is seriously abraded, the abrasion loss of each hammer blade in the mill is different, the dynamic balance of a rotor is damaged, the mill is vibrated to be enlarged, and noise is generated. Therefore, when the hammer mill is used for replacing the hammer sheets in the mill after a period of time, if only the hammer sheets with large abrasion degree are replaced, the requirement of dynamic balance of the rotor cannot be met, so that all the hammer sheets in the hammer mill need to be replaced, the workload of replacing the hammer sheets is large, the consumed time is long, and the running cost of the mill is increased.

There is therefore a need in the art for a hammer mill that has a lower frequency of hammer blade replacement, thereby reducing the operating costs of the mill.

SUMMERY OF THE UTILITY MODEL

An object of an embodiment of the utility model is to provide a hammer mill, include: the crushing machine comprises a shell, a rotating shaft rotationally arranged in the shell, a fixing piece sleeved on the rotating shaft, a hammer sheet connected with the fixing piece and a screen arranged between the hammer sheet and the shell, wherein the hammer sheet is used for crushing materials put into the crushing machine; the screen is used for screening the materials crushed by the hammer; the fixed part is provided with a plurality of hammer sheets, and the end parts of the hammer sheets, which are far away from the fixed part, are provided with abrasion parts.

According to the utility model discloses an embodiment, the hammer leaf includes: a first side surface facing the front hammer piece and a second side surface facing the rear hammer piece; offer on the hammer leaf and be used for holding the storage tank of wearing and tearing piece, the storage tank includes: the first accommodating groove is formed in the joint of the first side face and the end face, and the second accommodating groove is formed in the joint of the second side face and the end face.

According to an embodiment of the invention, the wear part comprises: the first abrasion piece is arranged in the first accommodating groove, and the second abrasion piece is arranged in the second accommodating groove.

According to the embodiment of the utility model, a mounting groove is arranged near the containing groove; and the mounting groove is internally provided with a mounting screw for fixing the wear part in the accommodating groove.

According to the utility model discloses an embodiment, the mounting groove includes: the first mounting groove is formed in the end face and is formed between the first accommodating groove and the second accommodating groove, the second mounting groove is formed in the first side face, and the third mounting groove is formed in the second side face.

According to the utility model discloses an embodiment, the mounting groove upper cover is equipped with the closure plate.

According to the utility model discloses an embodiment, the closure plate with the mounting groove passes through connecting screw and links to each other.

According to the utility model discloses an embodiment, mounting screw with the connecting screw surface all scribbles anti-skidding glue.

According to the utility model discloses an embodiment, the hammer leaf with the mounting is through installing the installation axle installation, first mounting hole has been seted up on the hammer leaf, the second mounting hole has been seted up on the mounting, the installation axle passes first mounting hole with the second mounting hole and with first mounting hole reaches second mounting hole rotatable coupling.

According to the utility model discloses an embodiment, the hammer leaf with the mounting is through installing the installation axle installation, first mounting hole has been seted up on the hammer leaf, the second mounting hole has been seted up on the mounting, the installation axle passes first mounting hole with the second mounting hole and with first mounting hole reaches second mounting hole fixed connection.

By adopting the technical scheme, the utility model discloses mainly have following technological effect:

1. the abrasion part is arranged on the hammer sheet and impacts materials, and only the abrasion part needs to be replaced after the abrasion part is used for a period of time, the hammer sheet does not need to be replaced, and the operation cost of the hammer crusher is reduced;

2. the abrasion part is fixed by arranging the accommodating groove and the mounting groove, so that the abrasion part is prevented from falling off in the working process of the hammer mill, only the connecting screw and the mounting screw are required to be taken down when the abrasion part is disassembled, only the connecting screw and the mounting screw are required to be mounted when the abrasion part is mounted, and time and labor are saved in the abrasion part replacing process;

3. the abrasion of the connecting screws and the mounting screws in the working process of the hammer mill can be reduced by arranging the blocking plate, and the working reliability of the hammer mill is improved.

Drawings

Fig. 1 is a schematic view of a hammer mill according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of a hammer blade according to an embodiment of the present invention.

In the figure, 1, a rotating shaft; 2. a fixing member; 3. a hammer sheet; 31. a first mounting hole; 32. an end face; 33. a first side surface; 34. a second side surface; 35. mounting grooves; 351. a first mounting groove; 352. a second mounting groove; 353. a third mounting groove; 354. mounting screws; 36. a blocking plate; 361. a connecting screw; 4. screening a screen; 5. installing a shaft; 6. a wear member; 61. a first wear member; 62. a second wear member.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Referring to fig. 1, the present invention discloses a hammer mill, which comprises a housing (not shown), a rotating shaft 1, a fixing member 2, a plurality of hammer pieces 3 and a screen 4. Wherein, 2 covers of mounting are established on pivot 1, and when hammer mill was in operating condition, pivot 1 drove 2 rotations of mounting, is provided with hammer leaf 3 on the mounting 2, thereby mounting 2 drove 3 rotations of hammer leaf and assault the material of adding in the rubbing crusher and smash the material, and the material after smashing transports out the rubbing crusher after setting up the screening of screen cloth 4 between hammer leaf 3 and casing.

The connection mode of the fixing element 2 and the hammer 3 is not limited, and preferably, referring to fig. 2, the fixing element 2 and the hammer 3 in this embodiment are connected by the mounting shaft 5, specifically, the hammer 3 is provided with a first mounting hole 31 (see fig. 3), the fixing element 2 is provided with a second mounting hole (not shown), and the mounting shaft 5 passes through the first mounting hole 31 and the second mounting hole to connect the hammer 3 and the fixing element 2. The connection form of the mounting shaft 5 to the first mounting hole 31 and the second mounting hole is not limited, and the mounting shaft 5 may be fixedly connected to the first mounting hole 31 and the second mounting hole, or the mounting shaft 5 may be rotatably connected to the first mounting hole 31 and the second mounting hole. The utility model discloses do not injecing hammer leaf 3 and the material of installation axle 5, preferably, hammer leaf 3 in this embodiment adopts the thick steel sheet of 12mm and first mounting hole 31 is through quenching treatment, the hardness reaches Rockwell hardness HRC45-HRC50 after quenching, installation axle 5 adopts high-carbon chromium bearing steel GCr18, hardness reaches HRC60-HRC65 after quenching, thereby the wearability of first mounting hole 31 has been improved, hammer leaf 3 and installation axle 5 that adopt above-mentioned material to make can strengthen hammer leaf 3 and the wearability of installation axle 5, increase hammer leaf 3 and installation axle 5's life.

Referring to fig. 3, in order to reduce the number of times the blades 3 are replaced in the crusher, a wear member 6 is provided at the end of the blade 3 remote from the fixing member 2. The hammer 3 comprises an end face 32 facing the screen 4 when the pulverizer is in an operating state, a first side face 33 facing an adjacent previous hammer 3 along the rotation direction of the hammer 3, and a second side face 34 facing an adjacent subsequent hammer 3 along the rotation direction of the hammer 3, where it should be noted that the previous hammer 3 adjacent to the rotation direction of the hammer 3 refers to the hammer 3 which moves to a predetermined position earlier than the current hammer 3 along the rotation direction of the hammer 3 and is adjacent to the current hammer 3, that is, in this embodiment, the hammer 3 which forms an angle of 45 ° with the current hammer along the rotation direction of the hammer 3; the next hammer 3 adjacent to the hammer 3 in the rotation direction refers to the hammer 3 which moves to a predetermined position behind the current hammer 3 in the rotation direction of the hammer 3 and is adjacent to the current hammer 3, i.e. the hammer 3 forms an angle of 45 degrees with the current hammer 3 in the opposite direction of the rotation direction of the hammer 3 in this embodiment.

To accommodate and mount the wear member 6, the hammer 3 is provided with an accommodating groove (not shown) and a mounting groove 35. Wherein, the containing grooves comprise a first containing groove arranged at the joint of the first side surface 33 and the end surface 32 and a second containing groove arranged at the joint of the second side surface 34 and the end surface 32; the first receiving groove receives a first wear member 61 therein, and the second receiving groove receives a second wear member 62 therein. In order to fix the first wear part 61 and the second wear part 62, a mounting groove 35 is formed in the hammer 3 adjacent to the receiving groove, a mounting screw 354 is disposed in the mounting groove 35, and different mounting screws 354 respectively fix the first wear part 61 in the first receiving groove and the second wear part 62 in the second receiving groove. The mounting groove 35 includes a first mounting groove 351 formed on the end surface 32 and located between the first receiving groove and the second receiving groove, a second mounting groove 352 formed on the first side surface 33, and a third mounting groove 353 formed on the second side surface 34. An operator screws mounting screws 354 into the side wall of the first mounting groove 351 close to the first accommodating groove and the side wall of the second accommodating groove, and the mounting screws are used for limiting the first wear-resisting part 61 and the second wear-resisting part 62 along the rotating direction of the hammer 3 and preventing the wear-resisting part 6 from flying out along the tangential direction of the rotating direction of the hammer 3 in the working process of the pulverizer; an operator screws a mounting screw 354 into the side wall of the second mounting groove 352 close to the first receiving groove, and the mounting screw is used for limiting the first abrasion part 61 along the rotation direction perpendicular to the hammer 3, so that the first abrasion part 61 is prevented from flying out of the first receiving groove due to the centrifugal force when the crusher is in a working state.

The first abrasion part 61 is limited in the vertical direction, so that the first abrasion part 61 is prevented from sliding out of the first accommodating groove when the pulverizer is in a working state; an operator screws the mounting screw 354 into the side wall of the third mounting groove 353 close to the second receiving groove to limit the vertical direction of the second wear-resistant member 62, so that the second wear-resistant member 62 is prevented from sliding out of the second receiving groove when the pulverizer is in a working state. The shape of the receiving groove is not limited, and preferably, the receiving groove is a square groove in this embodiment, the wear member 6 is a rectangular parallelepiped, the receiving groove is matched with the wear member 6 in shape, and the impact force applied to the wear member 6 during crushing the material is transmitted to the hammer 3, so that the mounting screw 354 for fixing the wear member 6 is basically not stressed, and the stability of connection between the wear member 6 and the hammer 3 is improved.

The sizes of the first wear part 61 and the second wear part 62 are not limited, but in the present embodiment, the first wear part 61 and the second wear part 62 are both rectangular solids and have the same size, the size of the first wear part 61 is slightly larger than the first receiving groove, and the size of the second wear part 62 is also slightly larger than the second receiving groove.

In the working process of the hammer mill, in order to reduce the abrasion of the mounting screws 354, the blocking plate 36 is arranged on the notch cover of the mounting groove 35, the blocking plate 36 is connected with the mounting groove 35 through the connecting screws 361, the connecting screws 361 penetrate through the blocking plate 36 and penetrate into the groove bottom of the mounting groove 35 to cover the blocking plate 36 on the notch of the mounting groove 35, the blocking plate 36 covers the mounting screws 354, and the abrasion of the mounting screws 354 can be reduced in the working process of the mill. Meanwhile, in order to prevent the mounting screw 354 and the connecting screw 361 from falling off, the mounting screw 354 and the connecting screw 361 are coated with anti-loose glue before being mounted, so that the stability of the connection between the wear part 6 and the hammer 3 is further improved, and the wear part 6 and the hammer 3 cannot fall off when the pulverizer is in a working state.

The concrete theory of operation of the hammer mill that this embodiment disclosed does: an operator adds materials into the hammer mill, a rotating shaft 1 of the hammer mill rotates to drive a fixing piece 2 to rotate, a hammer sheet 3 rotates along with the fixing piece 2 under the action of centrifugal force, and a wear part 6 on the hammer sheet 3 impacts the materials to crush the materials. After using a period of time, wherein first wearing part 61 on the hammer leaf 3 is worn seriously, makes the hammer mill reversal this moment, if the rubbing crusher can't reverse and can pull down the hammer leaf 3, install on the rubbing crusher after rotating 180 with the hammer leaf 3, use second wearing part 62 to smash the material, guarantee rubbing crusher's work efficiency, all wear out to change first wearing part 61 and second wearing part 62 together after certain degree at first wearing part 61 and second wearing part 62. When the operator replaces the abrasion part 6, the hammer sheet 3 does not need to be taken down for replacement, only the connecting screw 361 and the mounting screw 354 are needed to be detached, the abrasion part 6 which is seriously abraded is taken down and replaced by a new abrasion part 6, the connecting screw 361 and the mounting screw 354 are installed after replacement, the time and the labor are saved in the replacement process, and the downtime of the hammer mill is shortened.

Technical scheme more than adopting, the utility model discloses a hammer mill is through installing wearing and tearing piece 6 additional on hammer leaf 3, smashes the material through wearing and tearing piece 6, thereby is detachable construction and can reverse the direction of rotation of pivot 1 when the degree of wear of first wearing and tearing piece 61 is high between wearing and tearing piece 6 and hammer leaf 3 and use second wearing and tearing piece 62 to carry out the comminuted work, has increased rubbing crusher's work efficiency. The technical scheme of the utility model together directly change after 6 wearing and tearing to a certain degree of two wearing and tearing pieces, change the process and compare in current change process of taking off hammer leaf 3 from rubbing crusher and can reduce operating personnel's intensity of labour and operating time to hammer mill's down time has been shortened, hammer mill's work efficiency has been increased.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. A hammer mill comprising:

a housing;

a rotating shaft rotatably disposed in the housing;

the fixing piece is sleeved on the rotating shaft;

the hammer sheet is connected with the fixing piece and used for crushing materials placed in the crusher; and

the screen is arranged between the hammer sheet and the shell and is used for screening the materials crushed by the hammer sheet;

a plurality of hammer sheets are arranged on the fixed piece,

the method is characterized in that:

and the end part of the hammer slice, which is far away from the fixed part, is provided with a wear part.

2. The hammer mill of claim 1, wherein:

the hammer blade includes:

an end face facing the screen;

a first side facing the leading ram; and

a second side facing a rearward hammer blade;

a containing groove is formed in the hammer sheet and used for containing the abrasion part, and the containing groove comprises:

the first accommodating groove is formed in the joint of the first side face and the end face; and

the second accommodating groove is formed in the joint of the second side face and the end face.

3. The hammer mill of claim 2, wherein:

the wear member includes:

a first wear member disposed in the first receiving groove; and

a second wear member disposed in the second receiving groove.

4. The hammer mill of claim 2, wherein:

an installation groove is formed adjacent to the accommodating groove;

and a mounting screw is arranged in the mounting groove and fixes the wear part in the accommodating groove.

5. The hammer mill of claim 4, wherein:

the mounting groove includes:

the first mounting groove is formed in the end face and is formed between the first accommodating groove and the second accommodating groove;

the second mounting groove is formed in the first side face; and

and the third mounting groove is formed in the second side surface.

6. The hammer mill of claim 4, wherein:

the mounting groove upper cover is equipped with the closure plate.

7. The hammer mill of claim 6, wherein:

the blocking plate is connected with the mounting groove through a connecting screw.

8. The hammer mill of claim 7, wherein:

the surfaces of the mounting screw and the connecting screw are coated with anti-skid glue.

9. The hammer mill of claim 1, wherein:

the hammer sheet and the fixing piece are installed through an installation shaft, a first installation hole is formed in the hammer sheet, a second installation hole is formed in the fixing piece, and the installation shaft penetrates through the first installation hole, the second installation hole and is rotatably connected with the first installation hole and the second installation hole.

10. The hammer mill of claim 1, wherein:

the hammer sheet and the fixing piece are installed through an installation shaft, a first installation hole is formed in the hammer sheet, a second installation hole is formed in the fixing piece, and the installation shaft penetrates through the first installation hole, the second installation hole and is fixedly connected with the first installation hole and the second installation hole.