CN214717113U - Double-rotor impact mill - Google Patents
Double-rotor impact mill Download PDFInfo
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- CN214717113U CN214717113U CN202022494791.1U CN202022494791U CN214717113U CN 214717113 U CN214717113 U CN 214717113U CN 202022494791 U CN202022494791 U CN 202022494791U CN 214717113 U CN214717113 U CN 214717113U
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- 239000000463 material Substances 0.000 claims abstract description 34
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000012806 monitoring device Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000005465 channeling Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 238000003892 spreading Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002079 cooperative effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
本实用新型公开一种双转子冲击磨，包括内转子电机、壳体、机架、中心进料三角带轮、进料口、中心立轴、分料锥、上部支撑、内转子、外转子、安全罩、外转子电机、出料口、定位锁紧块、定位铰制螺栓，以及稀油供给系统、轴承温升远程监控和中心立轴挠度远程监控系统，中心立轴竖直固定在机架的中央，其顶端由内螺纹连接一分料锥，其上端由上部支撑中的支撑环及锁紧圆螺母定位固定，其下端通过定位锁紧装置与机架固定。通过对定位锁紧装置的结构设计，本实用新型的双转子冲击磨在高速重载运行时，其中心立轴的中心位置能够有效控制，同时还方便更换内转子三角带。
The utility model discloses a double-rotor impact mill, comprising an inner rotor motor, a casing, a frame, a central feeding V-belt, a feeding port, a central vertical shaft, a material distribution cone, an upper support, an inner rotor, an outer rotor, a safety Cover, outer rotor motor, discharge port, positioning locking block, positioning hinge bolt, and thin oil supply system, bearing temperature rise remote monitoring and central vertical shaft deflection remote monitoring system, the central vertical shaft is vertically fixed in the center of the frame, Its top end is connected with a material distribution cone by an internal thread, its upper end is positioned and fixed by a support ring and a locking round nut in the upper support, and its lower end is fixed with the frame by a positioning locking device. Through the structural design of the positioning and locking device, the center position of the center vertical shaft of the double-rotor impact mill of the utility model can be effectively controlled during high-speed and heavy-load operation, and the inner rotor V-belt can be easily replaced at the same time.
Description
Technical Field
The utility model relates to a mine equipment technical field especially relates to a double-rotor impact mill, and this double-rotor impact mill can wide application in system sand, the powder process link of brittle materials such as mine.
Background
The impact mill has been widely popularized and applied in some enterprises for milling and making sand in China due to energy conservation and high efficiency. The representative equipment is impact grinding equipment based on a patent number ZL200620097633.X (frame type pre-grinding machine). However, in the actual use process, the following problems exist:
the impact inner rotor is arranged at the upper part of the equipment, the outer rotor is arranged at the lower part of the equipment, so that a large space is needed in the longitudinal direction of the component arrangement, the distance between two ends of a central vertical shaft is large, the deflection is large in work, a feed inlet is arranged at one side of the top end, and excessive vibration is generated when large stones or instantaneous excessive feeding is met;
secondly, because the feed inlet is offset to one side, the impact linear velocity of the edge of the inner rotor is higher than 50m/s, the counterattack linear velocity of the outer rotor is higher than 35m/s, the feed quantity exceeds 60t/h, the high speed, the heavy load, the nonuniformity of the feed granularity and the imbalance of the feed weight can cause the instantaneous increase of the impact force borne by the inner rotor and the outer rotor, so that the central vertical shaft of the double-rotor impact mill can generate large-amplitude deflection rotation to force the central vertical shaft to play or displace, so that the bearing is quickly worn, the problems of pulling out or shearing even breaking the central vertical shaft and the like of a hinged bolt can occur, and the normal use of the equipment is seriously threatened;
thirdly, in the design of patent number zl200620097633.x (frame type pre-grinding machine), a cushion block is added at the bottom of the central vertical shaft and is connected in series with the base of the frame through bolts so as to facilitate the replacement of the triangular belt, however, the environment of the working site for milling and sand making is very bad (high temperature and high humidity), after the central vertical shaft works for a long time, the main weight of the central vertical shaft is concentrated on the middle cushion block due to factors such as vibration and the like, and the central vertical shaft is also rusted and the like, so that the cushion block is difficult to take out, and certain obstruction is caused to the work of replacing the inner rotor triangular belt.
With the development of remote control technology, the impact grinding device represented by patent number zl200620097633.x (frame type pre-grinder) also loses the advantages originally in the industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art current situation, provide a birotor impact mill, when high-speed heavy load operation, the central point of its central vertical scroll puts can effective control, still conveniently changes the inner rotor V belt simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a dual-rotor impact mill comprises an inner rotor motor, a shell, a frame, a central feeding triangular belt wheel, a feeding hole, a central vertical shaft, a distributing cone, an upper support, an inner rotor, an outer rotor, a safety cover, an outer rotor motor, a discharging hole, a positioning locking block, a positioning hinge bolt, a thin oil supply system, a bearing temperature rise remote monitoring and central vertical shaft deflection remote monitoring system, wherein the central vertical shaft is vertically fixed in the center of the frame, the top end of the central vertical shaft is connected with the distributing cone through internal threads, the upper end of the central vertical shaft is positioned and fixed through a support ring and a locking round nut in the upper support, the lower end of the central vertical shaft is fixed with the frame through a positioning locking device, the inner rotor and the outer rotor are both arranged on the central vertical shaft, the outer rotor is arranged on the upper part of the whole device and connected with an epitaxial support of the central feeding triangular belt wheel, the inner rotor is arranged on the inner lower side in the outer rotor, and the inner rotor obtains power through an inner rotor triangular belt wheel on a main shaft of the inner rotor motor, the outer rotor obtains power through a triangular belt of the outer rotor and a triangular belt wheel on a main shaft of an outer rotor motor, the positioning and locking device at the lower end of the central vertical shaft comprises an anti-channeling groove, an anti-twisting outer hexagon, a positioning locking block and a positioning hinged bolt, wherein the anti-channeling groove is arranged at the lower part of the central vertical shaft and the upper part of the anti-twisting outer hexagon, the anti-twisting hexagon is an outer hexagon machined at the bottom end of the central vertical shaft, the anti-channeling groove is a circular groove machined on the central vertical shaft, the positioning locking block is a symmetrical split body and comprises two cast steel semicircular bodies, the inner cavity of the positioning locking block is hollow, an anti-twisting inner hexagon and an anti-channeling boss are arranged on the wall of the inner cavity, the anti-channeling boss is a circular boss machined at the upper part of the inner cavity of the positioning locking block, the anti-twisting inner hexagon is an inner hexagon machined at the lower part of the circular boss, the height of the inner hexagon in the positioning locking block is greater than that of the outer hexagon on the central vertical shaft, during assembly, a circular boss in the positioning locking block is tightly buckled in a circular groove on the central vertical shaft, an inner hexagonal body in the positioning locking block is tightly fit with an outer hexagonal body at the lower end of the central vertical shaft, two symmetrical splitting surfaces of the positioning locking block are locked by fastening bolts, after the positioning locking block is clamped, the circular groove and the circular boss are matched to prevent the central vertical shaft from moving upwards or downwards, the inner hexagonal body and the outer hexagonal body are matched to prevent the central vertical shaft from rotating, and the longitudinal height of the inner hexagonal body in the positioning locking block is greater than that of the outer hexagonal body at the lower end of the central vertical shaft by the width of an inner rotor triangular belt.
Furthermore, the central vertical shaft is a hollow shaft, eight copper inlet and outlet pipes lubricated by thin oil of the bearing and a thermosensitive temperature control device arranged at the opposite part of the bearing are arranged in the central vertical shaft, a deflection monitoring device is arranged at the hollow central position of the central vertical shaft, the center of the distributing cone is also hollow, and monitoring lines of the eight copper inlet and outlet pipes lubricated by thin oil, the thermosensitive temperature control device and the deflection monitoring device are led out from the center of the distributing cone.
Further, the inner rotor comprises tertiary tower, and its top is that the level arranges along the center that it is radial several and spills the riser, and what second, third level step were arranged is that the material that returns counterattack the outer rotor carries out the counterattack piece of counterattack once more, and inner rotor central part is the rotary sleeve that turns round, turns round the sleeve bottom and is inner rotor V belt pulley.
Furthermore, the outer ring of the center feeding triangular belt wheel is provided with a triangular belt groove, the inner ring is provided with four radial inclined components with consistent inclination directions, the centers of the four inclined components are upper sleeves for mounting rolling bearings on a central vertical shaft, and the whole components are cast or welded by wear-resistant alloy steel.
The utility model discloses to the above-mentioned shortcoming that the impact crushing apparatus of active service exists, made brand-new design:
the outer rotor is arranged at the upper part of the equipment, the inner rotor is arranged at the inner lower part of the outer rotor, so that the parts are arranged compactly and reasonably, the supports at two ends of the central vertical shaft are shortened, and the deflection is greatly reduced during working;
according to the skin effect principle, the central vertical shaft is hollowed, grease lubrication is changed into thin oil lubrication, oil pipes entering and exiting a bearing position are concentrated to the hollow part of the central vertical shaft, the lubrication environment of equipment is improved, and the service life of the bearing is prolonged;
a thermosensitive device is arranged at a hollow part corresponding to the position of a bearing on the central vertical shaft to monitor the temperature rise of the bearing and timely adjust the oil temperature and the flowing speed of thin oil, a deflection measuring element is arranged at the central position of the central vertical shaft to remotely monitor the swinging condition of the central vertical shaft and timely feed back the feeding quantity and the feeding granularity of a feeding port, so that the aims of real-time control and timely feedback adjustment of equipment are fulfilled;
the bottom end of the central vertical shaft is provided with an anti-channeling circumferential groove and an anti-twisting outer hexagonal body, and meanwhile, a split positioning block of the central vertical shaft is designed, so that the anti-twisting and anti-channeling effects of the central vertical shaft are achieved, and the inner rotor V-belt can be more conveniently replaced during equipment maintenance.
The utility model has the advantages that: through the design, most defects of the active impact mill in the working process can be effectively controlled basically, and the working efficiency and the reliability of the equipment are greatly improved. The deflection of the central vertical shaft can be effectively reduced; improving the lubricating environment of the equipment; the real-time control and the timely feedback adjustment of the equipment are realized; the longitudinal movement of the central vertical shaft, the swinging of the central position and the rotation of the central vertical shaft are prevented, and the damaged inner rotor triangular belt is convenient to replace.
Drawings
FIG. 1 is a schematic structural view of the dual-rotor impact mill of the present invention;
FIG. 2 is a schematic diagram of the positions of the inner and outer rotors of the present invention;
FIG. 3 is a schematic structural view of the outer rotor of the present invention;
fig. 4 is a schematic structural view of an inner rotor of the present invention;
FIG. 5 is a schematic structural view of the anti-twisting and anti-channeling device of the present invention;
FIG. 6 is a schematic structural view of the material-distributing cone of the present invention;
figure 7 is the cross-sectional view of the utility model discloses divide the material awl.
Description of the labeling:
in the attached figure 1: 1. the device comprises an inner rotor motor, a shell, a frame, a central feeding triangular belt wheel, a feeding hole, a central vertical shaft, a material separating cone, a supporting device 8, an upper support, a discharging hole, a positioning locking block, a positioning hinge bolt, a safety cover, a motor 12, an outer rotor motor, a discharging hole, a positioning locking block and a positioning hinge bolt, wherein the inner rotor motor 2, the shell, the frame, the central feeding triangular belt wheel 4, the feeding hole 5, the upper support 6, the central vertical shaft 7, the material separating cone, the upper support 9, the inner rotor, the outer rotor, the safety cover 12 and the outer rotor motor 13 are sequentially connected.
In the attached fig. 2: 10. the device comprises an outer rotor, 10-1 parts of an outer rotor support, 10-2 parts of a material pressing inclined block, 10-3 parts of an outer rotor center sleeve, 4 parts of a center feeding triangular belt wheel, 9 parts of an inner rotor, 9-1 parts of a throwing plate, 9-2 parts of a counterattack block.
In FIG. 3: 10-1 parts of an outer rotor support, 10-2 parts of a material pressing inclined block, 10-3 parts of an outer rotor center sleeve, 4 parts of a center feeding triangular belt wheel, 10 parts of an outer rotor.
In fig. 4: 9-1 parts of a throwing plate, 9-2 parts of a counterattack block, 9-3 parts of an inner rotor central sleeve, 9-4 parts of an inner rotor triangular belt wheel.
In fig. 5: 6. 6-1 parts of a central vertical shaft, 6-2 parts of a channeling-preventing groove, 6-3 parts of an anti-twisting outer hexagon, 14 parts of an anti-twisting inner hexagon and a positioning block.
In fig. 6: 7. and (5) a material separating cone.
In FIG. 7: 7. and (5) a material separating cone.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The double-rotor impact mill is mainly composed of an inner rotor motor 1, a shell 2, a frame 3, a central feeding triangular belt wheel 4, a feeding hole 5, a central vertical shaft 6, a material separating cone 7, an upper support 8, an inner rotor 9, an outer rotor 10, a safety cover 11, an outer rotor motor 12, a discharging hole 13, a positioning locking block 14, a positioning hinge bolt 15, a thin oil supply system, a bearing temperature rise remote monitoring system and a central vertical shaft deflection remote monitoring system, wherein the inner rotor motor 1 is connected with the shell through a connecting rod.
The internal structure is as follows:
as shown in fig. 1 and 5, a central vertical shaft 6 is vertically fixed in the center of the frame 3, the top end of the central vertical shaft is connected with a distributing cone 7 through internal threads, the upper end of the central vertical shaft is positioned and fixed by a support ring and a locking round nut in an upper support 8, and the lower end of the central vertical shaft is fixed with the frame 3 through a positioning and locking device. An inner rotor 9 and an outer rotor 10 are both arranged on a central vertical shaft 6, the outer rotor 10 is arranged on the upper part of the whole device and is connected with an extension support 10-1 of a central feeding triangular belt wheel 4, the inner rotor 9 is arranged on the inner lower side of the outer rotor 10, the inner rotor 9 obtains power through an inner rotor triangular belt and a triangular belt wheel on a main shaft of an inner rotor motor 1, and the outer rotor 10 obtains power through the outer rotor triangular belt and a triangular belt wheel on a main shaft of an outer rotor motor 12.
The positioning and locking device at the lower end of the central vertical shaft 6 comprises an anti-channeling groove 6-1, an anti-twisting outer hexagon 6-2, a positioning locking block 14 and a positioning hinged bolt 15, wherein the anti-channeling groove 6-1 is formed in the lower portion of the central vertical shaft 6 and the upper portion of the anti-twisting outer hexagon 6-2, the anti-twisting outer hexagon 6-2 is an outer hexagon machined at the bottom end of the central vertical shaft 6, and the anti-channeling groove 6-1 is a circular groove formed in the central vertical shaft 6. The positioning locking block 14 is a symmetrical split body and comprises two cast steel semicircular bodies, the inner cavity of the positioning locking block is hollow, the wall of the inner cavity is provided with an anti-twisting inner hexagonal body 6-3 and an anti-channeling boss, the anti-channeling boss is a circular boss processed at the upper part of the inner cavity of the positioning locking block 14, the anti-twisting inner hexagonal body 6-3 is an inner hexagonal body processed at the lower part of the circular boss, and the height of the inner hexagonal body in the positioning locking block 14 is greater than that of the outer hexagonal body on the central vertical shaft 6.
During assembly, a circular boss in the positioning locking block 14 is tightly buckled in a circular groove on the central vertical shaft 6, an inner hexagonal body in the positioning locking block 14 is tightly matched with an outer hexagonal body at the lower end of the central vertical shaft 6, two symmetrical splitting surfaces of the positioning locking block are locked by fastening bolts, after the positioning locking block 14 is clamped, the circular groove and the circular boss are matched to prevent the central vertical shaft 6 from moving upwards or downwards, and the inner hexagonal body and the outer hexagonal body are matched to prevent the central vertical shaft 6 from rotating.
The longitudinal height of the inner hexagonal body in the positioning locking block 14 is larger than that of the outer hexagonal body at the lower end of the central vertical shaft 6 by the width of an inner rotor triangular belt, so that the inner rotor triangular belt is convenient to replace during equipment maintenance.
As shown in figure 3, the outer rotor 10 is arranged at the upper part of the whole equipment and is connected with an extension support 10-1 of a center feeding triangular belt wheel 4, the outer ring of the center feeding triangular belt wheel 4 is a triangular belt groove, the inner ring is provided with four radial inclined components 10-2 (playing a role of forced feeding) with consistent inclination directions, the centers of the four inclined components 10-2 are outer rotor center sleeves 10-3 which are provided with rolling bearings on a center vertical shaft 6, and the whole components are cast or welded by wear-resistant alloy steel.
As shown in fig. 4, the inner rotor 9 is arranged at the lower side in the outer rotor 10, the inner rotor 9 is composed of three stages of towers, the top end of the inner rotor is provided with a plurality of radial scattering vertical plates 9-1 horizontally arranged along the center, the second stage and the third stage are provided with counterattack blocks 9-2 for counterattacking materials returned by the counterattack of the outer rotor 10 again, the central part of the inner rotor 9 is a rotary sleeve 9-3, and the bottom end of the rotary sleeve is provided with an inner rotor triangular belt wheel 9-4.
When the material spreading machine works, materials (such as stones) enter a central feeding hole through a material spreading cone, an outer rotor 10 is driven by an outer rotor motor 12 to run at a high speed at a linear speed higher than 30 meters per second, four inclined components 10-2 arranged at the center of a triangular belt wheel forcibly press the entering materials to a spreading vertical plate 9-1 of an inner rotor 9, the inner rotor 9 is driven by the inner rotor motor 1 to drive the spreading vertical plate 9-1 to spread the materials to the outer rotor 10 at a high speed at a linear speed higher than 50 meters per second in a direction opposite to the running direction of the outer rotor 10, the materials are immediately knocked back to the inner rotor 9 by the outer rotor 10, and the materials are knocked back to the outer rotor 10 again by the knocking blocks 9-2 arranged on a second step and a third step on the inner rotor 9, so that the process is continuously and repeatedly carried out. Meanwhile, because the movement tracks of the materials in the processes of impact and counterattack are disordered, a plurality of materials become curtains in the process of back-and-forth impact, and the materials are collided repeatedly by the impact materials and the counterattack materials to become dust. Because of the impact and counterattack of the materials and the cooperative action of the material curtain, the energy utilization rate of the equipment is high, and the effect is good.
As shown in figures 1 and 2, the inner rotor 9 is arranged at the inner lower part of the outer rotor 10, so the structure is extremely compact, the supporting distance of the two ends of the central vertical shaft 6 is greatly shortened, the stress of the central vertical shaft 6 is greatly improved, and the bow-shaped deflection is greatly reduced during the operation.
As shown in figure 5, the central vertical shaft 6 is a hollow shaft, the top end of the central vertical shaft is connected with a material distribution cone 7 through internal threads, eight copper inlet and outlet pipes lubricated by thin oil of a bearing and a heat-sensitive temperature control device arranged at the opposite part of the bearing are arranged in the central vertical shaft 6, a deflection monitoring device is arranged at the hollow central position of the central vertical shaft 7, the center of the material distribution cone 7 is also hollow, and monitoring lines of the eight copper inlet and outlet pipes lubricated by the thin oil, the heat-sensitive temperature control device and the deflection monitoring device are led out from the center of the material distribution cone 7. Because the oil is supplied by adopting the grease lubrication external mode, the bearing can be damaged due to overheating caused by manual negligence or oil pipe damage, and the condition can be avoided after the thermosensitive temperature control device and the monitoring line are arranged through the hollow central vertical shaft 6 and the material distributing cone.
In the working process of the equipment, the inner rotor and the outer rotor run in a high-speed and heavy-load mode, the impact force borne by the central vertical shaft 6 is increased irregularly and instantly due to the nonuniformity of the feeding granularity and the nonuniformity of the feeding weight, the structural design can effectively prevent the longitudinal movement of the central vertical shaft 6, the swinging of the central position and the rotation (large-amplitude deflection rotary turning) of the central vertical shaft 6, further ensure the normal running of the double-rotor impact mill, simultaneously conveniently replace the damaged inner rotor triangular belt, and only need to disassemble two parts of the positioning locking block 14.
Of course, the above is only the preferred embodiment of the present invention, and the application range of the present invention is not limited thereto, so all the equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022494791.1U CN214717113U (en) | 2020-10-30 | 2020-10-30 | Double-rotor impact mill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022494791.1U CN214717113U (en) | 2020-10-30 | 2020-10-30 | Double-rotor impact mill |
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| CN214717113U true CN214717113U (en) | 2021-11-16 |
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| CN202022494791.1U Active CN214717113U (en) | 2020-10-30 | 2020-10-30 | Double-rotor impact mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588375A (en) * | 2020-10-30 | 2021-04-02 | 湖北第二师范学院 | Double-rotor impact mill |
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2020
- 2020-10-30 CN CN202022494791.1U patent/CN214717113U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112588375A (en) * | 2020-10-30 | 2021-04-02 | 湖北第二师范学院 | Double-rotor impact mill |
| CN112588375B (en) * | 2020-10-30 | 2025-06-06 | 湖北第二师范学院 | A double rotor impact mill |
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