CN217796447U - Breaking hammer body of bidirectional reversible fine crusher - Google Patents
Breaking hammer body of bidirectional reversible fine crusher Download PDFInfo
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- CN217796447U CN217796447U CN202121624800.2U CN202121624800U CN217796447U CN 217796447 U CN217796447 U CN 217796447U CN 202121624800 U CN202121624800 U CN 202121624800U CN 217796447 U CN217796447 U CN 217796447U
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Abstract
The invention discloses a breaking hammer body of a bidirectional reversible fine crusher, which improves the efficiency of replacing the breaking hammer body and reduces the danger of replacing work. The bolt-connecting structure comprises a bolt-connecting counter bore (10) arranged on the vertical surface of the tail part of a pin shaft (3), a hammer head rear side pin shaft penetrating through hole (8) arranged on a hammer head (1) at the rear side in a hammer handle connecting groove (7), a hammer head front side pin shaft penetrating through hole (9) arranged on the hammer head (1) at the front side in the hammer handle connecting groove (7), the left end of a hammer handle (2) arranged in the hammer handle connecting groove (7) arranged on the right side surface of the hammer head (1), the pin shaft (3) penetrating through the hammer head rear side pin shaft penetrating through hole (8), a pin shaft penetrating through hole (6), the hammer head front side pin shaft penetrating through hole (9) and a stop washer (4) from back to front, and then being in bolt connection with a bolt (5), and an annular welding seam (12) arranged between the screw head of the bolt (5) and the stop washer (4); the replacement operation is simple and easy, and the cost is low.
Description
Technical Field
The invention relates to the field of bidirectional reversible fine crusher equipment, in particular to a breaking hammer of a bidirectional reversible fine crusher.
Background
The granularity and the uniformity of fuel coal supplied to the circulating fluidized bed boiler have certain requirements, the fuel coal needs to be crushed in a bidirectional reversible fine crusher, a hammer head in the bidirectional reversible fine crusher belongs to a wearing part, the service life of the hammer head is about 3000 hours, and the hammer head needs to be replaced after the hammer head works to the service life; the hammer body structure in the existing bidirectional reversible fine crusher is a structure that a hammer head and a hammer handle are fixedly connected into a whole, when the hammer head is damaged, the whole hammer body needs to be replaced, a hammer shaft needs to be drawn out firstly, the hammer shaft needs to be replaced by a new hammer body, and then the whole hammer body is installed in the bidirectional reversible fine crusher.
Disclosure of Invention
The invention provides a breaking hammer body of a bidirectional reversible fine crusher, which improves the efficiency of replacing the hammer body of the fine crusher and reduces the danger of replacing work.
The invention solves the technical problems by the following technical scheme:
the breaking hammer body of the bidirectional reversible fine crusher comprises a hammer head, a hammer handle, a pin shaft, a stop washer and a bolt, wherein a bolt screwing counter bore is formed in the vertical face of the tail of the pin shaft, a hammer handle connecting groove is formed in the right side face of the hammer head, a pin shaft cross-connecting through hole is formed in the left end of the hammer handle, a hammer head rear side pin shaft cross-connecting through hole is formed in the hammer head on the rear side in the hammer handle connecting groove, a hammer head front side pin shaft cross-connecting through hole is formed in the hammer head on the front side in the hammer handle connecting groove, the left end of the hammer handle is arranged in the hammer handle connecting groove formed in the right side face of the hammer head, the pin shaft penetrates through the hammer head rear side pin shaft cross-connecting through hole, the hammer head front side pin shaft cross-connecting through hole and the stop washer from back to front and then is screwed with the bolt, and an annular welding seam is formed between the head of the bolt and the stop washer.
The rear side vertical surface of the hammer head is provided with a rear side groove, the front side vertical surface of the hammer head is provided with a front side groove, the head of the pin shaft is arranged in the rear side groove, and the stop washer is arranged in the front side groove.
The hammer head and the hammer handle are firmly connected, and the hammer head cannot fall off from the hammer handle in the using process, so that the hammer head is safe and firm; when the hammer head is replaced, the hammer head can be taken down and replaced conveniently and quickly only by using the angle grinder to grind off the annular welding line between the bolt head and the washer, and the replacement operation is simple, easy and low in cost.
Drawings
FIG. 1 is a schematic view of the present invention in a front view;
FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of the construction of the hammer shank 2 of the present invention;
fig. 4 is a schematic structural view of the hammer head 1 of the present invention;
fig. 5 is a schematic structural view of the pin 3 of the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
a breaking hammer body of a bidirectional reversible fine crusher comprises a hammer head 1, a hammer handle 2, a pin shaft 3, a stop washer 4 and a bolt 5, wherein a bolt screwing counter bore 10 is formed in the vertical face of the tail portion of the pin shaft 3, a hammer handle connecting groove 7 is formed in the right side face of the hammer head 1, a pin shaft penetrating through hole 6 is formed in the left end of the hammer handle 2, a hammer head rear side pin shaft penetrating through hole 8 is formed in the hammer head 1 on the rear side in the hammer handle connecting groove 7, a hammer head front side pin shaft penetrating through hole 9 is formed in the hammer head 1 on the front side in the hammer handle connecting groove 7, the left end of the hammer handle 2 is arranged in the hammer handle connecting groove 7 formed in the right side face of the hammer head 1, the pin shaft 3 penetrates through the hammer head rear side pin shaft penetrating through hole 8, the pin shaft penetrating through hole 6, the hammer head front side pin shaft penetrating through hole 9 and the stop washer 4 from back to front side and then is screwed with the bolt 5, and an annular welding seam 12 is formed between the head of the bolt 5 and the stop washer 4.
A rear groove 13 is arranged on the rear vertical surface of the hammer head 1, a front groove 14 is arranged on the front vertical surface of the hammer head 1, the head 11 of the pin shaft 3 is arranged in the rear groove 13, and the stop washer 4 is arranged in the front groove 14.
The hammer head 1 is connected with the left end of the hammer handle 2 through a pin shaft 3, a stop washer 4 is arranged in a groove on the side surface of the hammer head 1 and is connected into a whole through a bolt 5; the material quality of the pin shaft 3 is 40Cr, and the pin shaft has good comprehensive mechanical property, and good strength, plasticity and toughness after quenching and tempering treatment; the stop washer 4 is arranged in a groove on the side surface of the hammer head to prevent the hammer head 1 and the hammer handle 2 from generating relative motion; after the bolt 5 is screwed into the threaded hole in the vertical surface of the bottom of the pin shaft 3, the big end 11 of the bolt 5 is firmly welded with the stop washer 4, so that the anti-loosening effect is achieved, and the hammer head 1 and the hammer handle 2 are always in rotating work, so that materials are continuously crushed by the hammer head 1, the generated vibration is large, and the materials are easy to loosen with the hammer handle 2.
Claims (2)
1. A breaking hammer body of a bidirectional reversible fine crusher comprises a hammer head (1), a hammer handle (2), a pin shaft (3), a stop washer (4) and a bolt (5), wherein a vertical surface of the tail part of the pin shaft (3) is provided with a bolt screwing counter bore (10), the right side surface of the hammer head (1) is provided with a hammer handle connecting groove (7), the left end of the hammer handle (2) is provided with a pin shaft through-connection through hole (6), the hammer head (1) at the rear side in the hammer handle connecting groove (7) is provided with a hammer head rear side pin shaft through-connection through hole (8), the hammer is characterized in that a hammer front side pin shaft penetrating through hole (9) is formed in the hammer head (1) on the front side in the hammer handle connecting groove (7), the left end of the hammer handle (2) is arranged in the hammer handle connecting groove (7) formed in the right side face of the hammer head (1), a pin shaft (3) penetrates through the hammer rear side pin shaft penetrating through hole (8), the pin shaft penetrating through hole (6), the hammer front side pin shaft penetrating through hole (9) and the stop washer (4) from back to front once and is in threaded connection with the bolt (5), and an annular welding line (12) is arranged between the head of the bolt (5) and the stop washer (4).
2. The breaking hammer body of the bidirectional reversible fine crusher according to claim 1, characterized in that a rear groove (13) is provided on a rear vertical surface of the hammer head (1), a front groove (14) is provided on a front vertical surface of the hammer head (1), the head (11) of the pin (3) is disposed in the rear groove (13), and the lock washer (4) is disposed in the front groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121624800.2U CN217796447U (en) | 2021-07-16 | 2021-07-16 | Breaking hammer body of bidirectional reversible fine crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121624800.2U CN217796447U (en) | 2021-07-16 | 2021-07-16 | Breaking hammer body of bidirectional reversible fine crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217796447U true CN217796447U (en) | 2022-11-15 |
Family
ID=83958219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121624800.2U Active CN217796447U (en) | 2021-07-16 | 2021-07-16 | Breaking hammer body of bidirectional reversible fine crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217796447U (en) |
-
2021
- 2021-07-16 CN CN202121624800.2U patent/CN217796447U/en active Active
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