CN214864054U - Fixed crushing mechanism with rocker arm power - Google Patents
Fixed crushing mechanism with rocker arm power Download PDFInfo
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- CN214864054U CN214864054U CN202120573721.7U CN202120573721U CN214864054U CN 214864054 U CN214864054 U CN 214864054U CN 202120573721 U CN202120573721 U CN 202120573721U CN 214864054 U CN214864054 U CN 214864054U
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- rotating shaft
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Abstract
The utility model relates to a fixed crushing mechanism with rocking arm power, including support, broken tooth subassembly and mining machine rocking arm, broken tooth subassembly includes the pivot, overlaps in a plurality of axle sleeves of pivot side by side and installs the broken tooth on the axle sleeve, support arm and back support arm before the support is equipped with, the front portion and the rear portion of pivot are rotatory respectively to be supported on front support arm and back support arm, and the level extends around the pivot, the front end of pivot exposes in the place ahead of front support arm, the ascending one end in the left and right sides direction of support is fixed in the cylinder portion one side of mining machine rocking arm, the rear end of a drive gear in the mining machine rocking arm stretch out from the back lateral wall of the arm support portion of mining machine rocking arm and with the front end transmission of pivot is connected. The utility model discloses can be used for on the mining machine of thin ore deposit or high-grade thin ore deposit exploitation, effectively broken to bold degree rock, make the rock can be smoothly passed through from mining machine rocking arm below, avoid piling up.
Description
Technical Field
The utility model relates to a crushing mechanism that mining machine was used is particularly useful for the mining machine of exploiting thin ore deposit or high-grade thin ore deposit.
Background
In order to adapt to mining of a thinner ore layer or a high-grade thin ore layer, a rocker arm of a high-power (high-torque) cutting system is generally adopted on an bauxite mining machine, the rocker arm is low in height, compact in structure and high in power density, and a cutting motor arranged in a rocker arm shell occupies a large space in the front-rear direction, so that a conventional crushing device is not arranged in a space between the cutting motor and a cable trough. However, in the actual exploitation of the mining machine, a large amount of high-hardness bauxite often can appear, and these bauxite need pass through below the position where the cutting motor of rocking arm is located after entering the conveyer, but a lot of rocks are massive rocks, can not pass through, finally pile up and lead to the conveyer can't carry, need to shut down and carry out artifical clearance, waste time and energy, still influence the productivity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fixed broken mechanism with rocking arm power can be used for on the mining machine of thin ore deposit or high-grade thin ore deposit exploitation, carries out effective breakage to bold degree rock fragment, makes the rock fragment can pass through from mining machine rocking arm below smoothly, avoids piling up.
The utility model discloses a main technical scheme has:
a fixed crushing mechanism with rocker power comprises a bracket, a crushing tooth assembly and a mining machine rocker, the crushing tooth component comprises a rotating shaft, a plurality of shaft sleeves sleeved on the rotating shaft side by side and crushing teeth arranged on the shaft sleeves, the crushing teeth are arranged on the shaft sleeves through the crushing tooth holders, a plurality of crushing tooth holders are uniformly distributed on each shaft sleeve in the circumferential direction, the shaft sleeves are connected with the rotating shaft through a plurality of flat keys which are uniformly distributed in the circumferential direction, the bracket is provided with a front supporting arm and a rear supporting arm, the front part and the rear part of the rotating shaft are respectively and rotatably supported on the front supporting arm and the rear supporting arm, the rotating shaft horizontally extends from front to back, the front end of the rotating shaft is exposed out of the front supporting arm, one end of the supporting arm in the left-right direction is fixed on one side of the roller part of the mining machine rocker arm, the rear end of a transmission gear in the mining machine rocker arm extends out of the rear side wall of the arm support part of the mining machine rocker arm and is in transmission connection with the front end of the rotating shaft.
The side face of the roller of the mining machine rocker arm is provided with a vertical plane mounting surface, the outer side face of the support is attached to the plane mounting surface, and the support and the mining machine rocker arm are positioned through a plurality of pins and fastened through screws.
The front portion and the rear portion of the rotating shaft can be supported on the front supporting arm and the rear supporting arm through bearings respectively, inner end covers are installed on one sides, close to each other, of the front supporting arm and the rear supporting arm respectively, outer end covers are installed on one sides, far away from each other, and the inner end covers and the outer end covers axially limit corresponding bearings from the front direction and the rear direction.
The inner end cover is indirectly sleeved on the rotating shaft through the baffle ring, the baffle ring axially limits the inner ring of the corresponding bearing, and all shaft sleeves are axially limited between the two baffle rings.
A shield may be mounted on the support, the shield being shrouded over the breaker tooth assembly.
The fixed crushing mechanism with the rocker power preferably further comprises a connecting seat, the connecting seat is fixed on the rear side face of the arm frame portion of the mining machine rocker arm, the connecting seat and the mining machine rocker arm are positioned through a pin, a transmission system is arranged in an inner cavity of the connecting seat, the rear end of the transmission gear and the front end of the rotating shaft are located in the inner cavity of the connecting seat and are in transmission connection through the transmission system, and a gap is kept between the connecting seat and the front support arm.
The transmission gear can comprise a front section of external gear and a rear section of external gear, the front section of external gear is positioned in the mining machine rocker arm, the rear section of external gear is positioned in the connecting seat, a journal is arranged between the front section of external gear and the rear section of external gear, the journal is supported on a shell of the mining machine rocker arm through an arm support bearing, and the arm support bearing is installed on the shell of the mining machine rocker arm through a bearing seat.
The connecting seat is characterized in that a transition gear is installed in an inner cavity of the connecting seat, the transition gear is externally meshed with a rear-section external gear of the transmission gear, an internal spline is arranged on the transition gear, an external spline is arranged at the front end of the rotating shaft, and the front end of the rotating shaft is connected with the transition gear through the spline.
The front end of the connecting seat is preferably embedded into a shell of an arm support part of the mining machine rocker arm in a circular spigot structure, and the connecting seat simultaneously serves as a rear check ring of the arm support bearing to axially limit the arm support bearing.
The utility model has the advantages that:
the crushing tooth assembly can replace a traditional crushing roller, is simple and compact in structure, and when a certain crushing tooth is damaged, only the crushing tooth and a shaft sleeve where the crushing tooth is located need to be replaced, so that the crushing tooth assembly is simple and convenient to maintain, and the manufacturing cost and the use cost are lower.
Because the crushing teeth and the corresponding shaft sleeves with different parameters are arranged at different positions in the front and back of the rotating shaft according to the actual distribution characteristics of the lumpiness of the rock blocks on the conveying groove of the conveyor in the front and back directions, the rock blocks can be crushed more pertinently, and a better crushing effect can be achieved with more reasonable investment.
Because broken tooth subassembly simple structure itself, the connection structure of broken tooth subassembly and support is also simple, can overlap on a pivot and establish more quantity the axle sleeve, just also means can have more broken tooth to participate in the breakage, consequently promotes crushing effect more easily.
As a part of the cutting transmission system of the mining machine rocker arm, the transmission gear does the rotation of the rotating shaft provides power, therefore the crushing mechanism does not need to be specially matched with power devices such as a motor or a hydraulic motor, and therefore the structure is greatly simplified and the space occupies a small space, therefore, the utility model discloses be applied to the mining machine of thin ore layer or high-grade thin ore layer mining and become possible.
The utility model discloses still save the hydro-cylinder in the traditional broken mechanism. Because the vertical swing angle of the rocker arm is very small when a thinner ore layer or a high-grade thin ore layer is mined, the crushing mechanism can meet the use requirement even if no oil cylinder is used for adjusting the height position of the crushing teeth in a large range, and the structure of the crushing mechanism is further simplified.
The utility model discloses the inboard space in turning of the L shape of make full use of mining machine rocking arm, install here crushing mechanism's main part to through the cutting headtotail of connecting seat and transmission system and mining machine rocking arm, both saved installation space, the power supply problem has been solved again, make also can install crushing mechanism on the mining machine of thinner ore layer or high-grade thin ore layer exploitation adoption, consequently can effectively break the bold degree rock mass, make the rock mass can pass through from mining machine rocking arm below smoothly, avoid piling up.
The front end of the rotating shaft is in spline connection with the transition gear, and due to the floating characteristic of the spline connection, the rotating shaft and the transition gear can be centered, and the transmission stability can be improved. In addition, when the hard rock is crushed or the rock is blocked, the spline shaft is broken in advance to protect the transition gear and the transmission gear, so that the transmission reliability can be improved.
Drawings
Fig. 1 is a front view of one embodiment of a crushing mechanism of the present invention;
FIG. 2 is a cross-sectional view of the embodiment of FIG. 1;
fig. 3 is a partial enlarged view of the embodiment shown in fig. 1.
Reference numerals:
11. a support; 111. an outer side surface; 112. a front support arm; 113. a rear support arm; 12. a pin; 13. a rotating shaft; 14. crushing teeth; 15. a shield; 16. a shaft sleeve;
2. a mining machine rocker arm; 21. an arm frame portion; 211. a planar mounting surface; 213. a circular groove; 22. a transmission gear;
31. a connecting seat; 32. a transition gear; 33. and (4) a pin.
Detailed Description
The utility model discloses a fixed crushing mechanism with rocking arm power, as shown in fig. 1-3, including support 11, broken tooth subassembly and mining machine rocking arm 2, broken tooth subassembly includes pivot 13, overlaps side by side at a plurality of epaxial axle sleeves 16 and installs broken tooth 14 on the axle sleeve. The support is provided with a front supporting arm 112 and a rear supporting arm 113, the front part and the rear part of the rotating shaft are respectively and rotatably supported on the front supporting arm and the rear supporting arm, and the rotating shaft horizontally extends forwards and backwards. The front end of the rotating shaft is exposed in front of the front supporting arm. One end of the bracket in the left-right direction is fixed to the drum portion side of the mining machine swing arm, and the rear end of a transmission gear 22 in the mining machine swing arm protrudes from the rear side of the arm portion 21 of the mining machine swing arm and is in transmission connection with the front end of the rotating shaft.
Broken tooth is installed on the axle sleeve through broken toothholder, and a plurality of broken toothholders of circumference equipartition on every axle sleeve, one-to-one and each other detachable connection between broken tooth and the broken toothholder. The crushing teeth on the same shaft sleeve are all arranged clockwise or anticlockwise. The shaft sleeve is connected with the rotating shaft through a plurality of flat keys, the flat keys are uniformly distributed in the circumferential direction, the circumferential fixing is reliable, and the axial assembly and disassembly of the shaft sleeve are facilitated. When a certain broken tooth is damaged, only the broken tooth and the shaft sleeve where the broken tooth is located need to be replaced, and the maintenance is simple and convenient. Compared with a roller on the existing crusher, the crushing tooth assembly is compact in structure, saves space and is convenient to maintain.
The specification and performance parameters of the crushing teeth mounted on the same shaft sleeve are the same, and the specification and performance parameters of the crushing teeth mounted on different shaft sleeves can be the same or different. When the crushing tooth assembly is used on a crusher, the crushing teeth are positioned right above a conveying groove of the conveyor, and the extending direction of the rotating shaft is consistent with the width direction of the conveying groove. According to the actual distribution characteristics (such as abnormal distribution) of the rock mass in the width direction of the conveying groove, the crushing teeth and the corresponding shaft sleeves with different parameters can be arranged at different positions in front of and behind the rotating shaft, so that a better crushing effect can be obtained.
The drum side of the miner's swing arm is provided with a vertical planar mounting surface 211, which is a datum surface for the mounting bracket. The outer side 111 of the bracket is attached to the planar mounting surface, and the bracket and the mining machine rocker arm are positioned by a plurality of pins 12 and can be fastened by screws.
The front portion and the rear portion of the rotating shaft are supported on the front supporting arm and the rear supporting arm through bearings respectively, inner end covers are installed on one sides, close to each other, of the front supporting arm and the rear supporting arm respectively, outer end covers are installed on one sides, far away from each other, and the inner end covers and the outer end covers can axially limit corresponding bearings from the front direction and the rear direction.
The inner end cover can be indirectly sleeved on the rotating shaft through the baffle ring, and the baffle ring can axially limit the inner ring of the corresponding bearing. All the shaft sleeves are axially limited between the front retaining ring and the rear retaining ring.
The front and rear support arms may be arranged in a generally triangular shape with the base of the triangle adjacent the drum portion of the miner's swing arm and the shaft mounted at the top of the triangle. This shape of the bracket is more space-saving.
The brackets are preferably of symmetrical front to back construction so that one bracket can be mounted on both the left and right side rockers of the miner.
A shield 15 is preferably mounted on the support, the shield being shrouded over the breaker tooth assembly. The top plate of the protective cover is preferably an arc-shaped cylindrical surface taking the axis of the rotating shaft as the axis, and the lower edges of the front side plate and the rear side plate of the protective cover are respectively connected with the upper edges of the front supporting arm and the rear supporting arm.
The fixed crushing mechanism with rocker arm power also comprises a connecting socket 31 which is fixed on the rear side of the arm part of the mining machine rocker arm. The attachment socket and the miner's swing arm may be positioned by a pin 33. And a transmission system is arranged in the inner cavity of the connecting seat. The rear end of the transmission gear and the front end of the rotating shaft are both positioned in the inner cavity of the connecting seat and are in transmission connection through the transmission system. A gap is kept between the connecting seat and the front supporting arm.
As a part of the cutting transmission system of the mining machine rocker arm, the transmission gear does the rotation of the rotating shaft provides power, therefore the crushing mechanism does not need to be specially matched with power devices such as a motor or a hydraulic motor, and therefore the structure is greatly simplified and the space occupies a small space, therefore, the utility model discloses be applied to the mining machine of thin ore layer or high-grade thin ore layer mining and become possible.
And, the utility model discloses still save the hydro-cylinder among the traditional broken mechanism. Because the vertical swing angle of the rocker arm is very small when a thinner ore layer or a high-grade thin ore layer is mined, the crushing mechanism can meet the use requirement even if no oil cylinder is used for adjusting the height position of the crushing teeth in a large range.
Because the utility model discloses replace traditional crushing cylinder with broken tooth subassembly, the structure becomes very simple, and manufacturing cost and use cost are all lower. And, because simple structure can overlap on a pivot and establish more quantity axle sleeves, just also mean to have more broken tooth to participate in the breakage, consequently promote crushing effect more easily.
The transmission gear can comprise a front section of external gear and a rear section of external gear, the front section of external gear is positioned in the rocker arm of the mining machine and is used for participating in transmission of the cutting transmission system, and the rear section of external gear is positioned in the connecting seat and is used for outputting power outwards. And a journal is arranged between the front and rear sections of external gears and supported on a shell of the mining machine rocker arm through an arm support bearing. The arm support bearing can be mounted on the shell of the mining machine rocker arm through a bearing seat.
A transition gear 32 is installed in an inner cavity of the connecting seat, and the transition gear is externally meshed with a rear-section external gear of the transmission gear. The transition gear is provided with an internal spline, the front end of the rotating shaft is provided with an external spline, and the front end of the rotating shaft is connected with the transition gear spline. The front end and the rear end of the transition gear can be respectively supported on the connecting seat in a rotating way through a bearing. Due to the floating characteristic of spline coupling, the centering performance can be realized between the rotating shaft 13 and the transition gear 32, and the transmission stability can be improved. In addition, when the hard rock is crushed or the rock is blocked, the spline shaft is broken in advance to protect the transition gear and the transmission gear, so that the transmission reliability can be improved.
The front end of the connecting socket engages in a corresponding circular groove 213 in the housing of the arm part 21 of the mining machine swing arm in a convex circular spigot configuration. The connecting seat 31 can serve as a back retainer ring of the arm support bearing at the same time, and the arm support bearing is axially limited.
The front and back are referred to herein as up and down, respectively, from the perspective of fig. 2.
Claims (10)
1. A fixed crushing mechanism with rocking arm power which characterized in that: comprises a bracket, a crushing tooth component and a mining machine rocker arm, wherein the crushing tooth component comprises a rotating shaft, a plurality of shaft sleeves sleeved on the rotating shaft side by side and crushing teeth arranged on the shaft sleeves, the crushing teeth are arranged on the shaft sleeves through the crushing tooth holders, a plurality of crushing tooth holders are uniformly distributed on each shaft sleeve in the circumferential direction, the shaft sleeves are connected with the rotating shaft through a plurality of flat keys which are uniformly distributed in the circumferential direction, the bracket is provided with a front supporting arm and a rear supporting arm, the front part and the rear part of the rotating shaft are respectively and rotatably supported on the front supporting arm and the rear supporting arm, the rotating shaft horizontally extends from front to back, the front end of the rotating shaft is exposed out of the front supporting arm, one end of the supporting arm in the left-right direction is fixed on one side of the roller part of the mining machine rocker arm, the rear end of a transmission gear in the mining machine rocker arm extends out of the rear side wall of the arm support part of the mining machine rocker arm and is in transmission connection with the front end of the rotating shaft.
2. The fixed crushing mechanism with rocker arm power of claim 1 wherein: the side face of the roller of the mining machine rocker arm is provided with a vertical plane mounting surface, the outer side face of the support is attached to the plane mounting surface, and the support and the mining machine rocker arm are positioned through a plurality of pins and fastened through screws.
3. The fixed crushing mechanism with rocker arm power of claim 2 wherein: the front portion and the rear portion of the rotating shaft are supported on the front supporting arm and the rear supporting arm through bearings respectively, inner end covers are installed on one sides, close to each other, of the front supporting arm and the rear supporting arm respectively, outer end covers are installed on one sides, far away from each other, and the inner end covers and the outer end covers axially limit corresponding bearings from the front direction and the rear direction.
4. The fixed crushing mechanism with rocker arm power of claim 3 wherein: the inner end cover is indirectly sleeved on the rotating shaft through the baffle ring, the baffle ring axially limits the inner ring of the corresponding bearing, and all shaft sleeves are axially limited between the two baffle rings.
5. The fixed crushing mechanism with rocker arm power of claim 1 wherein: the support is of a front-back symmetrical structure.
6. The fixed crushing mechanism with rocker arm power of claim 1 wherein: a shield is mounted on the support and covers over the breaker tooth assembly.
7. The fixed crushing mechanism with rocker arm power of claim 1, 2, 3, 4, 5 or 6 wherein: the mining machine rocker arm structure is characterized by further comprising a connecting seat, the connecting seat is fixed on the rear side face of the arm frame portion of the mining machine rocker arm, the connecting seat and the mining machine rocker arm are positioned through a pin, a transmission system is arranged in an inner cavity of the connecting seat, the rear end of the transmission gear and the front end of the rotating shaft are located in the inner cavity of the connecting seat and are in transmission connection through the transmission system, and a gap is kept between the connecting seat and the front support arm.
8. The fixed crushing mechanism with rocker arm power of claim 7 wherein: the transmission gear comprises a front section of external gear and a rear section of external gear, the front section of external gear is positioned in the mining machine rocker arm, the rear section of external gear is positioned in the connecting seat, a shaft neck is arranged between the front section of external gear and the rear section of external gear, the shaft neck is supported on a shell of the mining machine rocker arm through an arm support bearing, and the arm support bearing is installed on the shell of the mining machine rocker arm through a bearing seat.
9. The fixed crushing mechanism with rocker arm power of claim 8 wherein: the connecting seat is characterized in that a transition gear is installed in an inner cavity of the connecting seat, the transition gear is externally meshed with a rear-section external gear of the transmission gear, an internal spline is arranged on the transition gear, an external spline is arranged at the front end of the rotating shaft, and the front end of the rotating shaft is connected with the transition gear through the spline.
10. The fixed crushing mechanism with rocker arm power of claim 9 wherein: the front end of the connecting seat is embedded into a shell of an arm support part of the mining machine rocker arm through a circular spigot structure, and the connecting seat simultaneously serves as a rear check ring of an arm support bearing to axially limit the arm support bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120573721.7U CN214864054U (en) | 2021-03-22 | 2021-03-22 | Fixed crushing mechanism with rocker arm power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120573721.7U CN214864054U (en) | 2021-03-22 | 2021-03-22 | Fixed crushing mechanism with rocker arm power |
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| Publication Number | Publication Date |
|---|---|
| CN214864054U true CN214864054U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120573721.7U Active CN214864054U (en) | 2021-03-22 | 2021-03-22 | Fixed crushing mechanism with rocker arm power |
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| CN (1) | CN214864054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871318A (en) * | 2021-03-22 | 2021-06-01 | 天地上海采掘装备科技有限公司 | Fixed crushing mechanism with rocker arm power |
-
2021
- 2021-03-22 CN CN202120573721.7U patent/CN214864054U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112871318A (en) * | 2021-03-22 | 2021-06-01 | 天地上海采掘装备科技有限公司 | Fixed crushing mechanism with rocker arm power |
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