CN213846446U - Half direct-drive permanent magnet motor for underground coal mine scraper - Google Patents
Half direct-drive permanent magnet motor for underground coal mine scraper Download PDFInfo
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- CN213846446U CN213846446U CN202022965801.5U CN202022965801U CN213846446U CN 213846446 U CN213846446 U CN 213846446U CN 202022965801 U CN202022965801 U CN 202022965801U CN 213846446 U CN213846446 U CN 213846446U
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- 230000007246 mechanism Effects 0.000 claims description 32
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- 239000003245 coal Substances 0.000 claims description 18
- 230000009467 reduction Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of underground scraper conveyors in coal mines, and provides a semi-direct-drive permanent magnet motor for the underground scraper conveyors in coal mines, which comprises a permanent magnet motor main body and a motor output shaft; the primary speed reducing mechanism is connected with the output shaft of the motor and comprises a primary output shaft which is coaxially arranged with the output shaft of the motor; the second-stage speed reducing mechanism is connected with the first-stage output shaft and comprises a second-stage output shaft, and the second-stage output shaft is meshed with the scraper conveyor main shaft; the contrary device that ends, contrary device includes: the rotating inner sleeve is arranged on the output shaft of the motor; the rotating outer sleeve is sleeved on the rotating inner sleeve, and a wedge-shaped space is formed between the rotating outer sleeve and the rotating inner sleeve; and the clamping roller is arranged in the wedge-shaped space. Through the technical scheme, the problems that the scraper conveyor in the prior art is complex in structure, large in occupied space and not suitable for being used underground in a coal mine are solved.
Description
Technical Field
The utility model relates to a colliery is scraper blade machine technical field in the pit, and is concrete, relates to a colliery is scraper blade machine in the pit and is partly directly driven permanent-magnet machine.
Background
The scraper is a transportation machine used on the working face of coal mining. The scraper conveyor has the advantages that the conveying capacity is not affected by the bulk degree and the humidity of goods, the height of the conveyor body is small, the conveyor body is convenient to load, the length of the conveyor body is convenient to adjust, the conveyor body is firm and can be used for waterfall breaking, the working face of a medium and the like, and the coal mine is widely used in multi-town coal mines. The underground coal mine scraper is a scraper used underground coal mine, and due to the fact that the underground coal mine condition is complex and the space is narrow, a driving device of the scraper in the prior art is complex in structure and large in size, and is not suitable for being used underground coal mine.
SUMMERY OF THE UTILITY MODEL
The utility model provides a colliery is half for scraper blade machine in pit directly drives permanent-magnet machine has solved the scraper blade machine structure among the prior art complicacy, occupation space is big, is not suitable for with the colliery problem of using in the pit.
The technical scheme of the utility model as follows:
a coal mine underground scraper blade machine semi-direct-drive permanent magnet motor comprises:
a permanent magnet motor body having a motor output shaft;
the primary speed reducing mechanism is connected with the motor output shaft and comprises a primary output shaft which is coaxially arranged with the motor output shaft;
the second-stage speed reducing mechanism is connected with the first-stage output shaft and comprises a second-stage output shaft, and the second-stage output shaft is meshed with the scraper conveyor main shaft;
a backstop device, said backstop device comprising:
the rotating inner sleeve is arranged on the output shaft of the motor;
the rotating outer sleeve is sleeved on the rotating inner sleeve, and a wedge-shaped space is formed between the rotating outer sleeve and the rotating inner sleeve;
and the clamping roller is arranged in the wedge-shaped space.
Furthermore, the reduction ratio of the first-stage speed reducing mechanism is 6:1, and the reduction ratio of the second-stage speed reducing mechanism is 2: 1.
Further, still include the converter, the permanent-magnet machine main part is supplied power by the converter.
Further, the secondary speed reducing mechanism further comprises:
a first gear provided on the primary output shaft,
and the second gear is arranged on the secondary output shaft and is meshed with the first gear.
Further, the non-return device further comprises:
the stop seat is provided with a stop block;
the stopping rotary table is arranged on the rotating outer sleeve and provided with a convex block, and when the output shaft of the motor rotates reversely, the convex block can be blocked by the stop block.
Further, the stop seat comprises a rotating hole, the stop block is arranged in the rotating hole, and the convex block is arranged on the side wall of the stop turntable;
the stop rotary disc rotates in the rotating hole, the protruding block is in contact with the inner wall of the rotating hole, and the side wall of the stop rotary disc is in contact with the stop block.
Further, the non-return device further comprises:
the inner retainer ring and the stop turntable clamp the rotating inner sleeve and the rotating outer sleeve in the middle.
Furthermore, the side wall of the motor output shaft is provided with a clamping block along the bus direction, and the inner retainer ring and the inner wall of the rotary inner sleeve are provided with clamping grooves corresponding to the clamping block along the bus direction.
The utility model discloses a theory of operation and beneficial effect do:
1. a semi-direct-drive permanent magnet motor for a coal mine underground scraper is characterized in that the output rotating speed of the motor is adjusted through a first-stage speed reducing mechanism 2 and a second speed reducing mechanism to enable the output rotating speed to be suitable for the rotating speed of a scraper main shaft, a first-stage output shaft 21 of the first-stage speed reducing mechanism 2 and a motor output shaft 11 of a permanent magnet motor main body 1 are coaxially arranged, space is saved, a second-stage output shaft 31 of a second-stage speed reducing mechanism 3 is meshed with the scraper main shaft to transmit power to the scraper main shaft and ensure stable connection, when the motor output shaft 11 rotates in the forward direction, a rotating inner sleeve 41 of a check device 4 rotates along with the motor output shaft 11, a clamping roller 43 is located on one side with larger space of a wedge-shaped space at the moment and does not act on the rotating inner sleeve 41 and the rotating outer sleeve 42, the rotating outer sleeve 42 cannot rotate along with the rotating inner sleeve 41, and the motor output shaft 11 can normally rotate; when the motor output shaft 11 rotates reversely, the clamping roller 43 is extruded to the side with the smaller space of the wedge-shaped space, the rotating inner sleeve 41 and the rotating outer sleeve 42 are extruded tightly, relative movement between the rotating inner sleeve 41 and the rotating outer sleeve 42 is prevented, the rotating outer sleeve 42 rotates along with the rotating inner sleeve 41, when the rotating outer sleeve 42 cannot rotate, the reverse check effect of the motor output shaft 11 is achieved, the structure is simple, the check effect is good, the whole device is simple in structure, the occupied space is small, the operation efficiency is high, energy conservation and consumption reduction are obvious, and the device is safe and reliable.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a check device;
FIG. 3 is a schematic view of the check device (without a stopper seat);
FIG. 4 is a schematic view of the installation structure of the rotary inner sleeve and the rotary outer sleeve;
FIG. 5 is a schematic view of an inner ring structure;
FIG. 6 is a schematic view of a partial structure of an output shaft of the motor;
FIG. 7 is a schematic structural view of a first-stage reduction mechanism;
FIG. 8 is a schematic structural view of the planetary gear mechanism;
FIG. 9 is a schematic structural view of a planet carrier;
FIG. 10 is a schematic view of the first rotary disk and second rotary disk mounting arrangement;
FIG. 11 is a schematic view of a first rotary disk configuration;
FIG. 12 is a schematic view of a second rotating disk structure;
in the figure: 1 permanent magnet motor body, 11 motor output shaft, 111 clamping block, 2 first-level speed reducing mechanism, 21 first-level output shaft, 22 reduction box, 23 gear ring, 24 sun gear, 25 planet carrier, 251 first rotating disc, 252 second rotating disc, 253 first protecting plate, 2531 second locking groove, 254 second protecting plate, 2541 first locking groove, 255 first locking ring, 2551 first locking block, 256 second locking ring, 2561 second locking block, 26 planet gear, 3 second-level speed reducing mechanism, 31 second-level output shaft, 32 first gear, 33 second gear, 4 check device, 41 rotating inner sleeve, 42 rotating outer sleeve, 43 clamping roller, 44 stop seat, 441 stop, 45 stop rotating disc, 451 lug, 46 inner check ring and 47 clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work, are related to the scope of the present invention.
As shown in fig. 1 to 12, the present embodiment proposes
A coal mine underground scraper blade machine semi-direct-drive permanent magnet motor comprises:
a permanent magnet motor main body 1 having a motor output shaft 11;
the primary speed reducing mechanism 2 is connected with the motor output shaft 11, the primary speed reducing mechanism 2 comprises a primary output shaft 21, and the primary output shaft 21 and the motor output shaft 11 are coaxially arranged;
the secondary speed reducing mechanism 3 is connected with the primary output shaft 21 and comprises a secondary output shaft 31, and the secondary output shaft 31 is meshed with the scraper conveyor main shaft;
check device 4, check device 4 includes:
a rotary inner sleeve 41 arranged on the motor output shaft 11;
the rotating outer sleeve 42 is sleeved on the rotating inner sleeve 41 and forms a wedge-shaped space with the rotating inner sleeve 41;
and a card roller 43 disposed in the wedge-shaped space.
The output rotating speed of the motor is adjusted through the first-stage reducing mechanism 2 and the second reducing mechanism to enable the output rotating speed to be suitable for the rotating speed of the scraper conveyor main shaft, the first-stage output shaft 21 of the first-stage reducing mechanism 2 and the motor output shaft 11 of the permanent magnet motor main body 1 are coaxially arranged, space is saved, the second-stage output shaft 31 of the second-stage reducing mechanism 3 is meshed with the scraper conveyor main shaft to transmit power to the scraper conveyor main shaft and ensure stable connection, when the motor output shaft 11 rotates forwards, the rotating inner sleeve 41 of the check device 4 rotates along with the motor output shaft 11, at the moment, the clamping roller 43 is positioned on the side with larger space of the wedge-shaped space, no action is generated on the rotating inner sleeve 41 and the rotating outer sleeve 42, the rotating outer sleeve 42 cannot rotate along with the rotating inner sleeve 41, and the motor output shaft 11 can normally rotate; when the motor output shaft 11 rotates reversely, the clamping roller 43 is extruded to the side with the smaller space of the wedge-shaped space, the rotating inner sleeve 41 and the rotating outer sleeve 42 are extruded tightly, relative movement between the rotating inner sleeve 41 and the rotating outer sleeve 42 is prevented, the rotating outer sleeve 42 rotates along with the rotating inner sleeve 41, when the rotating outer sleeve 42 cannot rotate, the reverse check effect of the motor output shaft 11 is achieved, the structure is simple, the check effect is good, the whole device is simple in structure, the occupied space is small, the operation efficiency is high, energy conservation and consumption reduction are obvious, and the device is safe and reliable.
The reduction ratio of the first-stage speed reducing mechanism 2 is 6:1, and the reduction ratio of the second-stage speed reducing mechanism 3 is 2: 1.
The rotating speed of the permanent magnet motor main body 1 is 500r/min, the reduction ratio of the first-stage speed reducer is 6:1, and the reduction ratio of the second-stage speed reducer is 2:1, so that the final rotating speed of the scraper conveyor is 41.7 r/min.
The permanent magnet motor is characterized by further comprising a frequency converter, and the permanent magnet motor main body 1 is powered by the frequency converter.
The permanent magnet motor main body 1 is powered by a frequency converter, can realize torque and rotating speed control according to the load condition, can provide overcurrent protection and ensures safety.
The secondary speed reducing mechanism 3 further includes:
a first gear 32 provided on the primary output shaft 21,
the second gear 33 is provided on the secondary output shaft 31 and meshes with the first gear 32.
The motor output shaft 11 of the permanent magnet motor main body 1 is in the same direction as the main shaft of the scraper, and is suitable for the situation that the direction of the permanent magnet motor main body 1 is perpendicular to the direction of the scraper.
The non-return device 4 further comprises:
a stopper seat 44 on which a stopper 441 is provided;
the stop rotating disc 45 is arranged on the rotating outer sleeve 42, the stop rotating disc 45 is provided with a lug 451, and the lug 451 is blocked by the block 441 when the motor output shaft 11 rotates reversely.
The stopping rotary table 45 is arranged on the rotating outer sleeve 42 and can rotate along with the rotating outer sleeve 42, the stopping rotary table 45 is provided with a convex block 451, when the motor output shaft 11 rotates reversely, the clamping roller 43 is extruded to one side with a smaller wedge-shaped space, the rotating inner sleeve 41 and the rotating outer sleeve 42 are squeezed to block the space between the rotating inner sleeve 41 and the rotating outer sleeve 42, relative movement between the rotating inner sleeve 41 and the rotating outer sleeve 42 is prevented, the motor output shaft 11 drives the rotating inner sleeve 41 and the rotating outer sleeve 42 to continue to rotate until the convex block 451 is blocked by a block 441 on the stopping seat 44, the rotating outer sleeve 42 cannot continue to rotate, and further the rotating inner sleeve 41 and the motor output shaft 11 cannot rotate, so that a non-return function is realized.
The stop seat 44 comprises a rotating hole, the stop 441 is arranged in the rotating hole, and the bump 451 is arranged on the side wall of the stop turntable 45;
the stopper turntable 45 rotates in the rotation hole, the projection 451 is in contact with the inner wall of the rotation hole, and the side wall of the stopper turntable 45 is in contact with the stopper 441.
When the motor output shaft 11 rotates reversely, the stop rotary disc 45 rotates in the rotating hole along with the motor output shaft 11, when the lug 451 is rotated to be in contact with the stop block 441, the stop rotary disc 45 cannot rotate continuously to realize non-return, the lug 451 is arranged in two opposite positions, and the corresponding stop block 441 is also arranged in two opposite positions.
The non-return device 4 further comprises:
the inner retainer 46, the inner retainer 46 and the stopper dial 45 sandwich the inner and outer rotary sleeves 41 and 42.
The inner retainer ring 46 and the stopper turntable 45 sandwich the inner rotating sleeve 41 and the outer rotating sleeve 42 to prevent the card roller 43 from coming off.
A clamping block 111 along the generatrix direction is arranged on the side wall of the motor output shaft 11, and a clamping groove 47 along the generatrix direction is arranged on the inner wall of the inner retainer ring 46 and the inner wall of the rotating inner sleeve 41 corresponding to the clamping block 111.
The inner retainer ring 46 and the clamping groove 47 on the inner wall of the rotating inner sleeve 41 are matched with the clamping block 111 on the motor output shaft 11, so that the inner retainer ring 46 and the rotating inner sleeve 41 can rotate along with the motor output shaft 11, and the motor is simple in structure and convenient to mount and dismount.
The primary speed reducing mechanism 2 further includes:
the reduction box 22 is connected with the permanent magnet motor main body 1 through a connecting disc;
a gear ring 23 arranged on the reduction gearbox 22;
a sun gear 24 provided on the motor output shaft 11;
a planet carrier 25 provided on the primary output shaft 21;
the plurality of planetary gears 26 are provided on the carrier 25, and the planetary gears 26 are engaged with both the ring gear 23 and the sun gear 24.
The first-level speed reducing mechanism 2 adopts a planetary speed reducing mechanism to realize the speed reducing effect, and the speed reducing structure occupies small space and is convenient to use underground.
The carrier 25 includes:
first rotating disk 251, second rotating disk 252 and backplate, first rotating disk 251 and second rotating disk 252 are connected through a plurality of backplate that evenly set up along circumference, and the intermediate formation installation space, sun gear 24 and planet wheel 26 all are located installation space, and planet wheel 26 passes through the space between two adjacent guardrails and meshes with ring gear 23.
The guard plate comprises a first guard plate 253 and a second guard plate 254 which are respectively arranged on the first rotating disc 251 and the second rotating disc 252; the first shield 253 and the second shield 254 are detachably connected.
The first guard plate 253 and the second guard plate 254 are detachably connected to facilitate installation of the gears.
The carrier 25 further includes:
a first locking ring 255 rotatably provided on the first rotary plate 251, on which a first locking piece 2551 is provided;
a second locking ring 256 rotatably disposed on the second rotary plate 252, and provided with a second locking block 2561;
the first guard plate 253 is provided with a second locking groove 2531 matched with the second locking block 2561;
the second shield 254 is provided with a first locking groove 2541 engaged with the first locking block 2551.
Need be connected first rotating disk and second rotating disk relatively when locking, make first backplate and second backplate cooperation, then rotate first locking ring, slide first latch segment to the first locking inslot on the second backplate, rotate the second locking ring and slide the second latch segment to the second locking inslot on the first backplate, accomplish the locking, easy to assemble, dismantle, can guarantee the stability of being connected of first rotating disk and second rotating disk, avoid the two to throw off.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a colliery is half for scraper blade machine directly drives permanent-magnet machine in pit which characterized in that includes:
a permanent magnet motor body (1) having a motor output shaft (11);
the primary speed reducing mechanism (2) is connected with the motor output shaft (11), the primary speed reducing mechanism (2) comprises a primary output shaft (21), and the primary output shaft (21) and the motor output shaft (11) are coaxially arranged;
the secondary speed reducing mechanism (3) is connected with the primary output shaft (21) and comprises a secondary output shaft (31), and the secondary output shaft (31) is meshed with the scraper conveyor main shaft;
a non-return device (4), the non-return device (4) comprising:
a rotating inner sleeve (41) arranged on the motor output shaft (11);
the rotating outer sleeve (42) is sleeved on the rotating inner sleeve (41) and forms a wedge-shaped space with the rotating inner sleeve (41);
a card roller (43) disposed in the wedge-shaped space.
2. The semi-direct-drive permanent magnet motor for the underground coal mine scraper is characterized in that the speed reduction ratio of the primary speed reducing mechanism (2) is 6:1, and the speed reduction ratio of the secondary speed reducing mechanism (3) is 2: 1.
3. The semi-direct-drive permanent magnet motor for the coal mine underground scraper is characterized by further comprising a frequency converter, and the permanent magnet motor main body (1) is powered by the frequency converter.
4. The semi-direct-drive permanent magnet motor for the underground coal mine scraper is characterized in that the secondary speed reducing mechanism (3) further comprises:
a first gear (32) provided on the primary output shaft (21),
and a second gear (33) provided on the secondary output shaft (31) and meshed with the first gear (32).
5. The semi-direct-drive permanent magnet motor for the coal mine underground scraper is characterized in that the non-return device (4) further comprises:
a stop seat (44) provided with a stop block (441);
the stop rotating disc (45) is arranged on the rotating outer sleeve (42), a bump (451) is arranged on the stop rotating disc (45), and when the motor output shaft (11) rotates reversely, the bump (451) can be stopped by the stop block (441).
6. The semi-direct-drive permanent magnet motor for the underground scraper of the coal mine as claimed in claim 5, wherein the stop seat (44) comprises a rotating hole, the stop block (441) is arranged in the rotating hole, and the bump (451) is arranged on the side wall of the stop turntable (45);
the stop rotary disc (45) rotates in the rotating hole, the bump (451) is in contact with the inner wall of the rotating hole, and the side wall of the stop rotary disc (45) is in contact with the stop block (441).
7. The semi-direct-drive permanent magnet motor for the coal mine underground scraper is characterized in that the non-return device (4) further comprises:
the inner retainer ring (46), the inner retainer ring (46) and the stop turntable (45) clamp the rotating inner sleeve (41) and the rotating outer sleeve (42) in the middle.
8. The semi-direct-drive permanent magnet motor for the coal mine underground scraper is characterized in that a clamping block (111) is arranged on the side wall of the motor output shaft (11) along the direction of a generatrix, and clamping grooves (47) are arranged on the inner walls of the inner retainer ring (46) and the rotating inner sleeve (41) corresponding to the clamping block (111) along the direction of the generatrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022965801.5U CN213846446U (en) | 2020-12-10 | 2020-12-10 | Half direct-drive permanent magnet motor for underground coal mine scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022965801.5U CN213846446U (en) | 2020-12-10 | 2020-12-10 | Half direct-drive permanent magnet motor for underground coal mine scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213846446U true CN213846446U (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022965801.5U Active CN213846446U (en) | 2020-12-10 | 2020-12-10 | Half direct-drive permanent magnet motor for underground coal mine scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213846446U (en) |
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2020
- 2020-12-10 CN CN202022965801.5U patent/CN213846446U/en active Active
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