CN216538740U - Hammer shaft assembly for coal mine crossheading crusher - Google Patents
Hammer shaft assembly for coal mine crossheading crusher Download PDFInfo
- Publication number
- CN216538740U CN216538740U CN202121492301.2U CN202121492301U CN216538740U CN 216538740 U CN216538740 U CN 216538740U CN 202121492301 U CN202121492301 U CN 202121492301U CN 216538740 U CN216538740 U CN 216538740U
- Authority
- CN
- China
- Prior art keywords
- hammer
- bearing
- main shaft
- block
- hammer block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to the technical field of crushing equipment for coal mines, in particular to a hammer shaft assembly for a coal mine crossheading crusher, which comprises a main shaft, a detachable hammer body, a transmission claw, a bearing and a bearing seat, wherein the detachable hammer body is sleeved on the main shaft and is in key connection with the main shaft; the driving claw is fixedly arranged at one end of the main shaft. The hammer shaft assembly adopts the assembled hammer body, the full-section symmetrical arrangement and the reversible hammer head, so that the service life is effectively prolonged; the novel fastening mode ensures that the hammer head is firmly fastened and is convenient to disassemble and assemble; the inner side double oil seal structure ensures the reliability of the inner side oil seal; the driving claw is a radial elastic block mounting structure, so that the maintenance convenience and the equipment reliability are improved.
Description
Technical Field
The utility model relates to the technical field of crushing equipment for coal mines, in particular to a hammer shaft assembly for a coal mine crossheading crusher.
Background
The coal mine crossheading crusher is used for fully mechanized mining or fully mechanized caving face crossheading, is matched with a transfer conveyor for use, and has the functions of crushing coal unloaded to the transfer conveyor by a face scraper conveyor in the transportation process, lifting and unloading the crushed coal to a crossheading belt conveyor by the transfer conveyor for transportation, and realizing comprehensive mechanized coal mining, transportation and crushing. The hammer shaft assembly is a key part of the crusher, and a hammer head is arranged in the middle of the hammer shaft and directly participates in impact crushing through high-speed rotation. As the hammer head is quickly abraded, once the hammer head cannot be replaced in time, the hammer body is easily abraded, so that the dynamic balance fails. Meanwhile, because the working condition is bad, the bearing, the oil seal and the like are easy to lose effectiveness because of the entry of foreign matters such as coal dust and the like.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the hammer shaft assembly for the assembled coal mine crossheading crusher is provided.
In order to solve the technical problems, the utility model adopts the technical scheme that:
a hammer shaft assembly for a coal mine crossheading crusher comprises a main shaft, a detachable hammer body, a transmission claw, a bearing and a bearing seat, wherein the detachable hammer body is sleeved on the main shaft and is connected with a main shaft key;
the transmission claw is fixedly arranged at one end of the main shaft.
Furthermore, can dismantle the hammer block and include hammer block I, hammer block II, hammer block III and hammer block IV, hammer block I, hammer block II, hammer block III and hammer block IV are coaxial to be arranged in proper order, and hammer block I, hammer block II, hammer block III and hammer block IV one side all are provided with the counter-pulling hole, be provided with the stud that runs through hammer block I, hammer block II, hammer block III, hammer block IV in the counter-pulling hole, stud's both ends are provided with lock nut.
Furthermore, can dismantle and be provided with the reversible tup on the hammer block, the reversible tup with can dismantle and be connected through tup bolt, nut between the hammer block.
Furthermore, the one end of the reversible hammer head is provided with a boss, can dismantle and be provided with the recess with boss matched with on the hammer block, the one end that the hammer head bolt is connected with the nut is provided with fastening assembly, fastening assembly includes locking plate and locking screw, the locking plate passes through the fixed setting of locking screw and can dismantle on the hammer block, locking plate middle part be provided with nut complex draw-in groove, the draw-in groove is fixed with nut circumference.
Furthermore, a labyrinth pressing plate and an inner spacer sleeve are arranged on the inner sides of the bearing seats on the two sides of the main shaft, one end of the inner spacer sleeve is tightly abutted to the inner ring of the bearing, the other end of the inner spacer sleeve is tightly abutted to one side of the labyrinth pressing plate, and the other side of the labyrinth pressing plate is tightly abutted to the detachable hammer body.
Furthermore, a bearing cover and an outer spacer sleeve are arranged on the outer side of the bearing seat, two oil seals are arranged between the inner spacer sleeve and the bearing seat, and a single oil seal is arranged between the outer spacer sleeve and the bearing cover.
Furthermore, round nuts are arranged at two ends of the main shaft, and the inner sides of the round nuts are tightly abutted to the outer spacer sleeves.
Furthermore, a plug is arranged on the side surface of the bearing cover.
Furthermore, the lower end of the bearing seat is provided with a positioning pin for connection.
Further, the driving claw is of a radial elastic block structure.
Compared with the prior art, the utility model has the following beneficial effects:
1. the hammer bodies I to IV are assembled into a rigid whole through keys, double-end studs and the like, the traditional integral casting hammer body is replaced, the casting defect caused by overlarge volume is reduced, the heat treatment hardness is easily improved, and the machining efficiency and the qualification rate can be improved by independently machining each hammer body.
2. The reversible hammer head is symmetrical on two sides, and when the abrasion of one side reaches the limit, the reversible hammer head can be used continuously, so that the service life of the hammer head is effectively prolonged, and the use cost is reduced.
3. According to the utility model, the locking plate is arranged at one end of the hammer bolt connected with the nut, so that the nut can be effectively prevented from loosening.
4. Because the bearing on the hammer shaft assembly is difficult to disassemble and assemble, two oil seals are arranged on the inner spacer sleeve on the inner side of the bearing, and even if one oil seal fails, the other oil seal can still play a role;
an oil seal is arranged on the outer spacer sleeve on the outer side, if the outer side oil seal fails, the bearing cover or the bearing cover at the fixed end can be detached and replaced, and the overall reliability is high.
Drawings
The following will explain embodiments of the present invention in further detail through the accompanying drawings.
FIG. 1 is a front view of a hammer shaft assembly;
FIG. 2 is a right side view of the hammer shaft assembly;
FIG. 3 is a structural diagram of the reversing hammer head;
FIG. 4 is a view of a fastener assembly;
FIG. 5 is a view of the interior of the bearing housing;
fig. 6 is a view showing a structure of a driving pawl for radially mounting an elastic block.
In the figure: 1-plug, 2-driving claw, 3-pressing plate, 4-detachable hammer body, 5-retainer ring, 6-screw, 7-washer, 8-bearing cover, 9-bearing seat, 10-positioning pin, 11-main shaft, 12-hammer body I, 13-hammer body II, 14-key, 15-screw, 16-hammer body III, 17-hammer body IV, 18-double-end screw bolt, 19-locking nut, 20-washer, 21-labyrinth pressing plate, 22-boss, 23-groove, 24-bearing, 25-outer spacer bush, 26-inner spacer bush, 27-fastening nut, 28-round nut, 29-backstop washer, 30-oil seal, 31-screw, 32-limiting pin, 33-washer, retainer ring, 34-reversible hammer, 35-hammer bolt, 36-fastening component, 37-nut, 38-locking plate and 39-locking screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1 to 5, a hammer shaft assembly for a coal mine crossheading crusher comprises a main shaft 11, a detachable hammer body 4, a transmission claw 2, a bearing 24 and a bearing seat 9, wherein the detachable hammer body 4 is sleeved on the main shaft 11, the detachable hammer body 4 is connected with a key 14 of the main shaft 11, and the key 14 is fixed on the main shaft through a screw 15.
The detachable hammer body 4 comprises a hammer body I12, a hammer body II 13, a hammer body III 16 and a hammer body IV 17, the hammer body I12, the hammer body II 13, the hammer body III 16 and the hammer body IV 17 are sequentially and coaxially arranged, one side of each of the hammer body I12, the hammer body II 13, the hammer body III 16 and the hammer body IV 17 is provided with a counter-pulling hole, a stud 18 penetrating through the hammer body I12, the hammer body II 13, the hammer body III 16 and the hammer body IV 17 is arranged in each counter-pulling hole, two ends of each stud 18 are provided with a locking nut 19 and a gasket 20, and the hammer body I12, the hammer body II 13, the hammer body III 16 and the hammer body IV 17 do not axially move relatively by locking the studs 18.
The hammer bodies of the detachable hammer bodies 4 are all provided with the reversible hammers 34, and after the abrasion of one side of the reversible hammers 34 reaches the limit, the reversible hammers can be used in a reversible way, so that the service life of the hammers is effectively prolonged;
one end of the reversible hammer head 34 is provided with the boss 22, can dismantle and be provided with on the hammer block 4 with boss 22 matched with recess 23, the one end that hammer head bolt 35 and nut 37 are connected is provided with fastening component 36, fastening component 36 includes locking plate 38 and locking screw 39, locking plate 38 is fixed to be set up on can dismantling hammer block 4 through locking screw 39, 38 middle parts of locking plate are provided with nut 37 complex draw-in groove, and the draw-in groove is fixed with nut 37 circumference, has nut 37 mutual interference through the locking plate in order to prevent that nut 37 is not hard up.
The two ends of the main shaft 11 are respectively provided with a bearing 24 and a bearing seat 9, the bearing 24 is arranged in the bearing seat 9, the main shaft 11 is fixedly connected with an inner ring of the bearing 24, an outer ring of the bearing is fixed with the bearing seat, a labyrinth pressing plate 21 and an inner spacer 26 are arranged on the inner side of the bearing seat 9, namely, on the side close to the detachable hammer body 4, one end of the inner spacer 26 is abutted against the inner ring of the bearing 24, the other end of the inner spacer 26 is abutted against one side of the labyrinth pressing plate 21, the other side of the labyrinth pressing plate 21 is abutted against the detachable hammer body 4, the detachable hammer is axially positioned through the inner spacer and the labyrinth pressing plates on the two sides, the two ends of the main shaft 11 are provided with round nuts 28, the inner side of the round nuts 28 is abutted against the outer spacer 25, and the main shaft is axially positioned.
The bearing cover 8 and the outer spacer 25 are arranged on the outer side of the bearing seat 9, because the bearing 24 is difficult to disassemble and assemble, two oil seals 30 are arranged between the inner spacer 26 and the bearing seat 9, even if one oil seal 30 fails, the other oil seal can still play a role, a single oil seal 30 is arranged between the outer spacer 25 and the bearing cover 8, if the oil seal 30 of the outer spacer 25 fails, the bearing cover 8 can be disassembled for replacement, and the overall reliability is high.
The transmission claw 2 is a radial elastic block structure, and the transmission claw 2 is fixedly arranged at one end of the main shaft 11 through a pressing plate 3 and a pressing plate bolt 4.
And a plug 1 is arranged on the side surface of the bearing cover 8, and the plug 1 is a lubricating grease interface.
The lower end of the bearing seat 9 is provided with a positioning pin 10 for connection, and the bearing seat 9 is fixedly arranged on the crusher frame body through the positioning pin 10.
Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.
Claims (10)
1. The utility model provides a colliery is hammer shaft subassembly for crossheading breaker which characterized in that: the novel hammer comprises a main shaft (11), a detachable hammer body (4), a transmission claw (2), a bearing (24) and a bearing seat (9), wherein the detachable hammer body (4) is sleeved on the main shaft (11), the detachable hammer body (4) is connected with the main shaft (11) in a key mode, the bearing (24) and the bearing seat (9) are arranged at two ends of the main shaft (11), the bearing (24) is arranged in the bearing seat (9), and the main shaft (11) is fixedly connected with an inner ring of the bearing (24);
the transmission claw (2) is fixedly arranged at one end of the main shaft (11).
2. The hammer shaft assembly for the coal mine gateway crusher according to claim 1, wherein: can dismantle hammer block (4) including hammer block I (12), hammer block II (13), hammer block III (16) and hammer block IV (17), hammer block I (12), hammer block II (13), hammer block III (16) and hammer block IV (17) are coaxial arranging in proper order, and hammer block I (12), hammer block II (13), hammer block III (16) and hammer block IV (17) one side all are provided with the counter-pulling hole, be provided with stud (18) that run through hammer block I (12), hammer block II (13), hammer block III (16), hammer block IV (17) in the counter-pulling hole, the both ends of stud (18) are provided with lock nut (19).
3. The hammer shaft assembly for a coal mine gateway crusher of claim 1, wherein: can dismantle and be provided with reversible hammer head (34) on hammer block (4), reversible hammer head (34) with can dismantle and connect through tup bolt (35), nut (37) between hammer block (4).
4. The hammer shaft assembly for the coal mine gateway crusher according to claim 3, wherein: the one end of reversible tup (34) is provided with boss (22), can dismantle and be provided with on hammer block (4) with boss (22) matched with recess (23), the one end that tup bolt (35) and nut (37) are connected is provided with fastening component (36), fastening component (36) are including locking plate (38) and locking screw (39), locking plate (38) are fixed to be set up on can dismantling hammer block (4) through locking screw (39), locking plate (38) middle part be provided with nut (37) complex draw-in groove, the draw-in groove is fixed with nut (37) circumference.
5. The hammer shaft assembly for the coal mine gateway crusher according to claim 1, wherein: the inner sides of the bearing seats (9) on the two sides of the main shaft (11) are respectively provided with a labyrinth pressing plate (21) and an inner spacer sleeve (26), one end of the inner spacer sleeve (26) is tightly abutted to the inner ring of the bearing (24), the other end of the inner spacer sleeve (26) is tightly abutted to one side of the labyrinth pressing plate (21), and the other side of the labyrinth pressing plate (21) is tightly abutted to the detachable hammer body (4).
6. The hammer shaft assembly for the coal mine gateway crusher according to claim 5, wherein: the bearing device is characterized in that a bearing cover (8) and an outer spacer bush (25) are arranged on the outer side of the bearing seat (9), two oil seals (30) are arranged between the inner spacer bush (26) and the bearing seat (9), and a single oil seal (30) is arranged between the outer spacer bush (25) and the bearing cover (8).
7. The hammer shaft assembly for the coal mine gateway crusher according to claim 6, wherein: round nuts (28) are arranged at two ends of the main shaft (11), and the inner sides of the round nuts (28) are tightly abutted to the outer spacer bushes (25).
8. The hammer shaft assembly for the coal mine gateway crusher according to claim 6, wherein: and a plug (1) is arranged on the side surface of the bearing cover (8).
9. The hammer shaft assembly for the coal mine gateway crusher according to claim 1, wherein: and the lower end of the bearing seat (9) is provided with a positioning pin (10) for connection.
10. The hammer shaft assembly for the coal mine gateway crusher according to claim 1, wherein: the transmission claw (2) is of a radial elastic block structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121492301.2U CN216538740U (en) | 2021-07-01 | 2021-07-01 | Hammer shaft assembly for coal mine crossheading crusher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121492301.2U CN216538740U (en) | 2021-07-01 | 2021-07-01 | Hammer shaft assembly for coal mine crossheading crusher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216538740U true CN216538740U (en) | 2022-05-17 |
Family
ID=81537872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121492301.2U Active CN216538740U (en) | 2021-07-01 | 2021-07-01 | Hammer shaft assembly for coal mine crossheading crusher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216538740U (en) |
-
2021
- 2021-07-01 CN CN202121492301.2U patent/CN216538740U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202163832U (en) | Chain wheel shaft component of scraper conveyor | |
| CN216538740U (en) | Hammer shaft assembly for coal mine crossheading crusher | |
| CN210001014U (en) | kinds of chain wheel with changeable teeth | |
| CN113333103A (en) | Hammer shaft assembly for coal mine crossheading crusher | |
| CN114370490A (en) | Axial impact resistant short axial crawler belt walking speed reducer | |
| CN210527617U (en) | Sprocket shaft group | |
| CN214837491U (en) | Hydraulic cylinder limiting device and heading machine | |
| CN218934428U (en) | Connection structure of development machine quartering hammer and development tooth | |
| CN214933479U (en) | Belt roller bearing sweeper | |
| CN212446966U (en) | Independent wheel limit assembly of leveler rear axle | |
| CN213256275U (en) | Combined waterproof roller convenient to disassemble and assemble | |
| CN218953968U (en) | Main transmission bearing cover limiting structure of loader drive axle | |
| CN220328845U (en) | Hammer shaft assembly of crusher | |
| CN102614957B (en) | Axial positioning device of crushing roller | |
| CN201330798Y (en) | Wearable bearing base | |
| CN213770175U (en) | Split assembled chain wheel assembly | |
| CN211765138U (en) | Connecting structure of lifting cylinder and frame of mining dump truck | |
| CN212348897U (en) | Laterite-nickel ore tooth roller crusher | |
| CN215634826U (en) | High-strength automobile engine belt pulley | |
| CN217431840U (en) | Crusher two-side large belt pulley shaft coupling structure | |
| CN219632213U (en) | Roller end shaft sleeve | |
| CN211764706U (en) | Split type rear axle structure of mining dump truck | |
| CN219221058U (en) | Protection mechanism and bearing device of coal feeder | |
| CN211225106U (en) | Detachable carrier roller chain | |
| CN214217182U (en) | Chain wheel set of head of scraper conveyor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |