CN217189949U - Direct-drive efficient environment-friendly energy-saving central transmission ball mill - Google Patents
Direct-drive efficient environment-friendly energy-saving central transmission ball mill Download PDFInfo
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- CN217189949U CN217189949U CN202220797172.6U CN202220797172U CN217189949U CN 217189949 U CN217189949 U CN 217189949U CN 202220797172 U CN202220797172 U CN 202220797172U CN 217189949 U CN217189949 U CN 217189949U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The utility model provides a directly drive high-efficient environmental protection and energy saving center transmission ball mill, relate to mining equipment technical field, it includes feeding mechanism, the rotator, arrange hopper and PMSM, the rotator passes through the bearing support and includes the feed cylinder that the level set up and connects the cavity row's material shaft of feed cylinder discharge end, the cavity is arranged the material shaft and is passed and be equipped with the relief hole of discharging the material after the ball-milling to arranging in the hopper from arranging the hopper, the feed end and the feeding mechanism of feed cylinder are connected, the cavity is arranged the material shaft and is connected through shaft coupling and PMSM's output shaft, the feed cylinder, the material shaft is arranged to the cavity, the axis alignment of shaft coupling and PMSM's output shaft. Above-mentioned scheme directly drives the ball mill operation through the motor, replaces the speed reducer to add open gear drive's structure, can improve transmission efficiency, reduces impact vibrations and spare part consumption, easy to maintain, compact structure can also reduce the maintenance, reduces working strength to adopt permanent magnet synchronous machine to replace excitation motor, can reduce the energy consumption and raise the efficiency.
Description
Technical Field
The utility model relates to a mining equipment technical field especially indicates a directly drive high-efficient environmental protection and energy saving center transmission ball mill.
Background
The existing ball mill is generally composed of a feeding part, a discharging part, a rotating part, a transmission part (a speed reducer, a large transmission gear, a small transmission gear, a motor, an electric control) and other main parts. In a ball mill for roasting waste material disclosed in chinese patent document CN201721708571, the transmission mechanism adopted is a traditional structure of a speed reducer open type gear transmission, the cylinder is driven to rotate by a motor, a speed reducer, a pinion and a bull gear, the efficiency of the transmission mode is low, and the ball mill is usually placed in a mine and other harsh environments for use, so that the bull gear needs to be maintained manually frequently, the working strength is high, the working efficiency is low, and most of the ball mill adopted is an excitation motor, the excitation is needed, and the power consumption is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy consumption is lower, efficiency is higher directly drives high-efficient environmental protection and energy saving center transmission ball mill, directly drives through the motor and drives the ball mill operation, replaces current ordinary speed reducer to add open gear drive's traditional structure to adopt permanent magnet synchronous motor to replace current excitation motor commonly used, thereby improve work efficiency, reduce the energy consumption, reduce the maintenance, reduce working strength.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a directly drive high-efficient environmental protection and energy saving center transmission ball mill, includes feed mechanism, rotator, row's hopper and PMSM, the rotator passes through the bearing and includes the feed cylinder that the level set up and the cavity row's material axle of connecting the feed cylinder discharge end, the cavity is arranged the material axle and is passed and be equipped with the material after the ball-milling and discharge the relief hole in arranging the hopper from arranging the hopper, the feed end and the feed mechanism of feed cylinder are connected, the cavity is arranged the material axle and is passed through shaft coupling and PMSM's output shaft, the axis of feed cylinder, cavity row's material axle, shaft coupling and PMSM's output shaft aligns.
Preferably, the coupling is an elastic pin coupling with a taper sleeve.
More preferably, the coupling comprises two coupling halves connected by an outer connecting sleeve, the coupling halves include coupling halves and an inner ring installed in an inner bore of the coupling halves, the outer circumferential surface of the coupling halves is provided with a pin connected with the outer connecting sleeve, the inner bore of the coupling halves includes a ring groove provided near the inner end surface of the coupling halves and a tapered bore whose inner diameter is gradually reduced from the end surface of the ring groove toward the outer end surface of the coupling halves, the inner ring includes a flange and a tapered sleeve matched with the tapered bore of the coupling halves, the tapered sleeve is installed in the tapered bore of the coupling halves, the flange is installed in the ring groove and connected with the coupling halves by an adjusting bolt, so that the relative position of the inner ring and the coupling halves can be adjusted by rotating the adjusting bolt.
Preferably, the feeding mechanism comprises a feeding trolley with rollers at the bottom, a feeding hopper is arranged at the upper part of the feeding trolley, a feeding pipe is connected below the feeding hopper, and the other end of the feeding pipe is connected with the feeding end of the charging barrel.
Preferably, the charging barrel comprises a feeding part, a barrel part and a discharging part which are detachably connected in sequence, and the shaft necks of the feeding part and the discharging part are supported by bearings and are respectively connected with a feeding mechanism and a hollow discharging shaft.
Preferably, the bearing is a self-aligning roller bearing.
Preferably, the permanent magnet synchronous motor is connected with a frequency converter.
When the direct-drive efficient environment-friendly energy-saving central transmission ball mill is in actual use, materials and a certain amount of water are fed into the material cylinder through the feeding mechanism, the permanent magnet synchronous motor directly drives the material cylinder filled with media (steel balls) to rotate through the coupler and the hollow discharging shaft, the materials are impacted by the steel balls and are ground between the steel balls and the lining plate of the material cylinder, fresh surfaces are fully exposed, the materials are fully mixed, and finally the materials are discharged out of the mill through the discharging hopper, so that the grinding process is completed. The direct-drive efficient environment-friendly energy-saving center transmission ball mill directly drives the ball mill to operate through the motor, the traditional structure that an existing common speed reducer is replaced by an open gear transmission is replaced, the transmission efficiency can be improved, the impact vibration and spare part consumption are reduced, the maintenance is easy, the structure is compact, meanwhile, transmission parts such as a large gear ring and the like exposed outside are reduced, the maintenance can be reduced, fault points are reduced, the working strength is reduced, the working efficiency is improved, the permanent magnet synchronous motor is adopted to replace an existing excitation motor, the energy consumption can be reduced, and the efficiency is improved. In addition, it is worth mentioning that the ball mill can replace a conventional center transmission or peripheral transmission ball mill, and environmental pollution caused by leakage of lubricating oil or lubricating grease is reduced.
Drawings
FIG. 1 is a front view of a direct-drive high-efficiency environment-friendly energy-saving central transmission ball mill in the embodiment;
FIG. 2 is a top view of the direct-drive high-efficiency, environment-friendly and energy-saving central transmission ball mill in this embodiment;
FIG. 3 is a schematic structural diagram of the discharging part in this embodiment;
FIG. 4 is a schematic structural diagram of the coupling of the present embodiment;
fig. 5 is a schematic structural diagram of the inner ring in this embodiment.
In the figure:
1-feeding mechanism 1 a-feeding trolley 1a 1-roller
1b feed hopper 1c feed pipe 2 bearing part
2 a-bearing 2 b-bearing seat 3-feeding part
4-barrel part 5-discharge part 6-discharge part
6 a-hollow discharge shaft 6a 1-discharge hole 6 b-discharge hopper
6b 1-hopper outlet 7-coupling 7 a-half coupling
7a 1-inner ring 7a 2-half coupling 7a 3-adjusting bolt
7a 11-flange 7a 12-external conical surface 7a 13-through hole
7a 21-inner conical surface 7a 22-ring groove 7a 23-threaded hole
7 b-external connecting sleeve 7 c-pin 8-permanent magnet synchronous motor
9-transmission shaft 10-jacking device 11-motor base
12-bottom plate.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
The embodiment provides a directly drive high-efficient environmental protection and energy saving center transmission ball mill, it includes feed mechanism 1, the rotator, row's hopper 6b and PMSM 8, the rotator passes through bearing 2a support and includes the feed cylinder that the level set up and connects the cavity of feed cylinder discharge end and arrange material shaft 6a, cavity is arranged material shaft 6a and is passed and be equipped with the relief hole 6a1 of discharging to row's hopper 6b with the material after the ball-milling in row's hopper 6b, the feed end and the feed mechanism 1 of feed cylinder are connected, cavity is arranged material shaft 6a and is passed through shaft coupling 7 and PMSM 8's output shaft, the feed cylinder, cavity is arranged material shaft 6a, the axis of shaft coupling 7 and PMSM 8's output shaft aligns. The charging barrel comprises a feeding part 3, a barrel part 4 and a discharging part 5 which are detachably connected in sequence, wherein the feeding part 3, the barrel part 4 and the discharging part 5 are connected through bolts, and the shaft necks of the feeding part 3 and the discharging part 5 are supported through a bearing 2a and are respectively connected with a feeding mechanism 1 and a hollow discharging shaft 6 a.
Specifically, as shown in fig. 1 and 2, the direct-drive efficient, environment-friendly and energy-saving central transmission ball mill comprises a feeding mechanism 1, a bearing portion 2, a feeding portion 3, a barrel portion 4, a discharging portion 5, a discharging portion 6, a coupler 7 and a permanent magnet synchronous motor 8, wherein the bearing portion 2 comprises a bearing seat 2b for mounting the bearing 2a and bearings 2a which are respectively arranged on the left side and the right side of the barrel portion 4 and are used for supporting a feeding portion 3 shaft neck and a discharging portion 5 shaft neck, the feeding portion 3, the barrel portion 4 and the discharging portion 5 are sequentially connected from left to right to form a charging barrel and are supported by the bearings 2a on the left side and the right side of the barrel portion 4, the specific structure of the discharging portion 6 is shown in fig. 3, the discharging portion 6 comprises a hollow discharging shaft 6a with a discharging hole 6a1 and a discharging hopper 6b with a hopper outlet 6b1, the feeding portion 3, the barrel portion 4, the discharging portion 5 and the hollow discharging shaft 6a are all of hollow barrel structure, the feed end and the feed mechanism 1 of feed portion 3 are connected, and row material fill 6b and the discharge end and the shaft coupling 7 of connecting discharge portion 5 respectively are passed at the both ends of cavity row material axle 6a, and the one end of shaft coupling 7 and PMSM 8's output shaft, and the other end passes through transmission shaft 9 and is connected with discharge portion 6, and the axis of feed portion 3, barrel portion 4, discharge portion 5, cavity row material axle 6a, shaft coupling 7, PMSM 8's output shaft aligns. Wherein, the barrel 4 is provided with a jack-up device 10 below, the permanent magnet synchronous motor 8 is provided with a motor base 11 below, and the ball mill further comprises a bottom plate 12.
When the direct-drive high-efficiency environment-friendly energy-saving central transmission ball mill is in actual use, materials and a certain amount of water enter the barrel part 4 through the feeding end of the feeding part 3 through the feeding mechanism 1, the permanent magnet synchronous motor 8 directly drives the barrel part 4 filled with media (steel balls) to rotate through the coupler 7 and the hollow discharging shaft 6a, the materials are impacted by the steel balls and are ground between the steel balls and the barrel lining plate, fresh surfaces are fully exposed, full mixing is achieved, finally the materials are discharged to the discharging hopper 6b through the discharging hole 6a1 of the discharging part 6, the mill is discharged from the hopper outlet 6b1, and the grinding process is completed. The direct-drive efficient environment-friendly energy-saving center transmission ball mill directly drives the ball mill to operate through the motor, the traditional structure that an existing common speed reducer is replaced by an open gear transmission is replaced, the transmission efficiency can be improved, the impact vibration and spare part consumption are reduced, the maintenance is easy, the structure is compact, meanwhile, transmission parts such as a large gear ring and the like exposed outside are reduced, the maintenance can be reduced, fault points are reduced, the working strength is reduced, the working efficiency is improved, the permanent magnet synchronous motor 8 is adopted to replace an existing excitation motor, the energy consumption can be reduced, and the efficiency is improved.
In addition, it is worth mentioning that the prior center transmission ball mill drives the ball mill cylinder to rotate and work by a motor-coupler-reducer-coupler; the traditional peripheral transmission ball mill is driven by a synchronous motor, a clutch, a big gear and a small gear (or a motor, a reducer and a coupler); when the speed reducer adopting the two transmission modes works, a large amount of lubricating and cooling oil is needed, the large gear and the small gear are also lubricated by adding lubricating grease, the using amount is large, and the lubricating oil or the lubricating grease generally leaks, so that the environment is seriously polluted. The ball mill provided by the embodiment can replace a conventional center transmission or peripheral transmission ball mill, and a speed reducer is not needed, so that the environmental pollution caused by the leakage of lubricating oil or lubricating grease is reduced.
It should be noted that the direct-drive high-efficiency environment-friendly energy-saving central transmission ball mill can be used for industrial departments such as mines, metallurgy, chemical industry, building materials and the like to grind ores and other materials with different levels of hardness. The discharging part 6 in the embodiment is arranged outside the discharging part 5, so that the discharging function can be realized, and the power transmission function can be realized. Compared with a conventional excitation motor, the permanent magnet synchronous motor 8 in the embodiment has the advantages of higher driving system efficiency, simplicity and convenience in operation. Mainly embodied in the following aspects:
1. the permanent magnet replaces an excitation winding to carry out excitation, excitation current is not needed, and the rotor has no winding loss during operation;
2. the motor has the advantages of high power factor, small stator current, relatively low motor temperature rise and low copper consumption, the air gap can be made larger due to high magnetic energy density, stray loss can be reduced, the motor efficiency is high, and the motor energy efficiency can reach or even exceed the first-level energy efficiency in GB 30254;
3. the device has wide economic operation range, and can keep higher efficiency and power factor in the range of 25-120% of rated load;
4. the device has no collecting ring and electric brush, simple structure and low system failure rate;
5. the motor adopts the antifriction bearing structure, compares traditional electro-magnetic motor, has reduced lubricating system, when having reduced the fault point, has also avoided the cost of purchasing lubricating oil for the user.
In the present embodiment, the coupling 7 is a tapered-sleeve elastic pin coupling. The coupling 7 comprises two half couplings 7a connected by an outer connecting sleeve 7b, the half coupling 7a comprises a half coupling 7a2 and an inner ring 7a1 arranged in an inner hole of the half coupling 7a2, the outer circumferential surface of the half coupling 7a2 is provided with a pin 7c connected with the outer connecting sleeve 7b, the inner hole of the half coupling 7a2 comprises a ring groove 7a22 arranged close to the inner end surface of the half coupling 7a2 and a taper hole with the inner diameter gradually reduced from the end surface of the ring groove 7a22 to the outer end surface of the half coupling 7a2, the inner ring 7a1 comprises a flange 7a11 and a taper sleeve matched with the taper hole of the half coupling 7a2, the taper sleeve is arranged in the taper hole of the half coupling 7a2, the flange 7a11 is mounted in the groove 7a22 and connected with the half coupling 7a2 by adjusting bolts 7a3, so that the relative positions of the inner ring 7a1 and the half joint 7a2 can be adjusted by turning the adjusting bolt 7a 3.
Specifically, as shown in fig. 4, the coupling 7 includes a pair of half couplings 7a and an outer connecting sleeve 7b for connecting the pair of half couplings 7a, the half coupling 7a includes an inner ring 7a1, a half coupling 7a2 and an adjusting bolt 7a3, the inner ring 7a1 has a specific structure as shown in fig. 5, an inner hole of the inner ring 7a1 is a cylindrical hole, an outer circumferential surface of the inner ring 7a1 is provided with a flange 7a11 and an outer cylindrical surface 7a12, a through hole 7a13 is formed in the flange 7a11, an outer circumferential surface of the half coupling 7a2 is provided with a stud 7c connected with the outer connecting sleeve 7b, an inner hole of the half coupling 7a2 includes an inner cylindrical surface 7a21 and an outer cylindrical groove 7a22 for receiving the flange 7a11, an end surface of the annular groove 7a22 is provided with a threaded holes 7a23 for corresponding to the through hole 7a13 in the flange 7a11, a conical surface 12 of the inner ring 7a1 and an inner cylindrical surface 21 in the half coupling 7a2, adjusting bolts 7a3 are threaded through holes 7a13 in flange 7a11 and into threaded holes 7a23 to connect inner ring 7a1 and coupling half 7a2 to each other. The flange 7a11 of the inner ring 7a1 is connected with the taper sleeve into a whole, the outer conical surface 7a12 is the outer circumferential surface of the taper sleeve, and the inner conical surface 7a21 is the inner circumferential surface of the tapered hole.
The coupling 7 can be connected with a shaft through cold assembly, heating is not needed during installation, the inner ring 7a1 can tightly hold the shaft by adjusting the mutual positions between the inner ring 7a1 and the half coupling 7a2, the coupling purpose is realized, and the coupling is simple to install, convenient to detach and replace and has good interchangeability.
In this embodiment, the feeding mechanism 1 comprises a feeding trolley 1a with a roller 1a1 at the bottom, a feeding hopper 1b is arranged at the upper part of the feeding trolley 1a, a feeding pipe 1c is connected below the feeding hopper 1b, and the other end of the feeding pipe 1c is connected with the feeding end of the feeding part 3. The feeding trolley 1a is convenient to move, and when the ball mill needs to be maintained and overhauled, the feeding trolley 1a can be moved away without being disassembled.
In this embodiment, the bearing 2a is a self-aligning roller bearing, and compared with an old-fashioned sliding bearing, the transmission efficiency can be greatly improved, meanwhile, abrasion of a scraping bush and an end cover shaft neck is avoided, and spare part cost and maintenance cost are saved. In addition, the bearing 2a may be provided with a manual (automatic) grease station or an intelligent control automatic grease-spraying lubrication system, and grease is manually pressed into the bearing 2a at regular time for lubrication.
In this embodiment, permanent magnet synchronous motor 8 is connected with the converter, through converter control, realizes the frequency conversion and starts for the startability is more superior, and the flexibility ratio is adjusted in the operation is higher, the staff's operation of being convenient for. Certainly, the permanent magnet synchronous motor 8 can also adopt a permanent magnet variable frequency motor with a built-in frequency converter, so that the energy consumption can be reduced, and the energy can be saved by more than 20%; the ball mill is started stably, the starting current is reduced, the impact of overlarge starting current on a power grid is avoided, the starting energy consumption is saved, the power-volume ratio of the ball mill can be reduced, and the power factor of the motor in operation is improved.
In addition, when the ball mill is used in a working environment with serious dust pollution, the transmission part can be independently installed in a closed machine room, so that the core part of the transmission is not polluted by the dust, and the service life of the ball mill is prolonged.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed for the preferred embodiment, the present invention is not limited to the product form and the pattern, and any person skilled in the art can make some modifications or modifications to the equivalent embodiment of the equivalent variations without departing from the technical scope of the present invention, but all the contents of the technical solution of the present invention do not depart from the scope of the patent of the technical solution of the present invention.
Claims (7)
1. The utility model provides a directly drive high-efficient environmental protection and energy saving center transmission ball mill which characterized in that: including feed mechanism (1), rotator, row's hopper (6 b) and permanent magnet synchronous motor (8), the rotator passes through bearing (2 a) support and includes the feed cylinder that the level set up and cavity row's material shaft (6 a) of connecting the feed cylinder discharge end, cavity row's material shaft (6 a) are passed and are equipped with discharge hole (6 a 1) of discharging the material after the ball-milling to row's hopper (6 b) from row's hopper (6 b), the feed end and the feed mechanism (1) of feed cylinder are connected, output shaft that shaft (6 a) are arranged to the cavity pass through shaft coupling (7) and permanent magnet synchronous motor (8), the axis alignment of the output shaft of feed cylinder, cavity row's material shaft (6 a), shaft coupling (7) and permanent magnet synchronous motor (8).
2. The direct-drive efficient environment-friendly energy-saving central transmission ball mill as claimed in claim 1, is characterized in that: the coupler (7) is an elastic pin coupler with a taper sleeve.
3. The direct-drive efficient environment-friendly energy-saving central transmission ball mill as claimed in claim 2, is characterized in that: the coupling (7) comprises two half couplings (7 a) connected by an outer connecting sleeve (7 b), the half coupling (7 a) comprises a half coupling (7 a 2) and an inner ring (7 a 1) arranged in an inner hole of the half coupling (7 a 2), the outer circumferential surface of the half coupling (7 a 2) is provided with a pin (7 c) connected with the outer connecting sleeve (7 b), the inner hole of the half coupling (7 a 2) comprises an annular groove (7 a 22) arranged close to the inner end surface of the half coupling (7 a 2) and a tapered hole with the inner diameter gradually reduced from the end of the annular groove (7 a 22) to the direction of the outer end surface of the half coupling (7 a 2), the inner ring (7 a 1) comprises a flange (7 a 11) and a tapered sleeve matched with the tapered hole of the half coupling (7 a 2), the tapered sleeve is arranged in the tapered hole of the half coupling (7 a 2), the flange (7 a 11) is arranged in the annular groove (7 a 22) and is connected with the half coupling (7 a 2) by a bolt (7 a) and the half coupling (7 a) through a 3) and the bolt (3) and the outer connecting sleeve (7 a bolt (7 a) Then, the relative position of the inner ring (7 a 1) and the half coupling (7 a 2) can be adjusted by screwing the adjusting bolt (7 a 3).
4. The direct-drive efficient environment-friendly energy-saving central transmission ball mill as claimed in claim 1, is characterized in that: the feeding mechanism (1) comprises a feeding trolley (1 a) with a roller (1 a 1) at the bottom, a feeding hopper (1 b) is arranged at the upper part of the feeding trolley (1 a), a feeding pipe (1 c) is connected to the lower part of the feeding hopper (1 b), and the other end of the feeding pipe (1 c) is connected with the feeding end of the charging barrel.
5. The direct-drive efficient environment-friendly energy-saving central transmission ball mill as claimed in claim 1, is characterized in that: the charging barrel comprises a feeding part (3), a barrel body part (4) and a discharging part (5) which are detachably connected in sequence, and shaft necks of the feeding part (3) and the discharging part (5) are supported by a bearing (2 a) and are respectively connected with a feeding mechanism (1) and a hollow discharging shaft (6 a).
6. The direct-drive efficient environment-friendly energy-saving central transmission ball mill as claimed in claim 1, is characterized in that: the bearing (2 a) is a self-aligning roller bearing.
7. The direct-drive efficient environment-friendly energy-saving central transmission ball mill as claimed in claim 1, is characterized in that: the permanent magnet synchronous motor (8) is connected with a frequency converter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220797172.6U CN217189949U (en) | 2022-04-08 | 2022-04-08 | Direct-drive efficient environment-friendly energy-saving central transmission ball mill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220797172.6U CN217189949U (en) | 2022-04-08 | 2022-04-08 | Direct-drive efficient environment-friendly energy-saving central transmission ball mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117863065A (en) * | 2024-03-11 | 2024-04-12 | 太原理工大学 | Distributed polishing and grinding device and method for aero-engine bearing ring |
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2022
- 2022-04-08 CN CN202220797172.6U patent/CN217189949U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117863065A (en) * | 2024-03-11 | 2024-04-12 | 太原理工大学 | Distributed polishing and grinding device and method for aero-engine bearing ring |
| CN117863065B (en) * | 2024-03-11 | 2024-05-10 | 太原理工大学 | Distributed polishing and grinding device and method for aero-engine bearing ring |
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