CN104971796A - Hammer crusher directly driven through permanent magnet synchronous variable-frequency motor - Google Patents
Hammer crusher directly driven through permanent magnet synchronous variable-frequency motor Download PDFInfo
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- CN104971796A CN104971796A CN201510334532.3A CN201510334532A CN104971796A CN 104971796 A CN104971796 A CN 104971796A CN 201510334532 A CN201510334532 A CN 201510334532A CN 104971796 A CN104971796 A CN 104971796A
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- magnet synchronous
- frequency motor
- permanent
- adjustable frequency
- synchronous adjustable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/30—Driving mechanisms
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Abstract
A hammer crusher directly driven through a permanent magnet synchronous variable-frequency motor is an important device among underground down-channel conveying devices. A traditional driving system for a hammer crusher generally includes an asynchronous motor, a speed reducer and a hydraulic coupler (a mechanical soft-start device) or includes an asynchronous motor, small and large belt pulleys and a belt. The hammer crusher directly driven through the permanent magnet synchronous variable-frequency motor is structurally characterized in that the permanent magnet synchronous variable-frequency motor serves as the driving system for the hammer crusher; compared with the traditional driving system, the permanent magnet synchronous variable-frequency motor replaces the asynchronous motor to provide source power, and the intermediate links of the speed change gears such as the speed reducer, the belt pulleys and the belt and mechanical soft-start devices like the hydraulic coupler are omitted. The hammer crusher directly driven through the permanent magnet synchronous variable-frequency motor has a large starting torque and operates stably. The process is implemented easily and reliably. An efficient, energy-saving and low-noise operation process is realized, and the hammer crusher is free of maintenance and realizes the purposes of energy conservation and consumption reduction.
Description
Art
The present invention relates to a kind of underground mine use hammer mill, it is a kind of visual plant in downhole crossheading transporting equipment, be arranged between the coal mine downhole crossheading transporting equipment section of landing and bridge formation section, the coarse coal impact cutting that working face ships is broken into required lumpiness, so that the safe transportation of follow-up equipment, eliminate the potential safety hazard of relevant device and personnel from source.
Prior art
Tradition underground coal mine hammer mill type is a lot, and mostly structure is to be made up of drive system, hammer axle assembly, crusher chamber assembly.Its operation principle is hammer body assembly (hammer axle assembly) High Rotation Speed that drive system drives on broken shaft and axle; the tup be fastened on Great inertia height energy storage hammer axle assembly utilizes high impact speed to be broken into required lumpiness by the coarse coal under it, ensures that transporting equipment normally runs and protects the personal safety of miner.Conventional drive system has two kinds according to the kind of drive: gear drive and belt transmission.Gear train assembly is asynchronous motor+decelerator+fluid coupling (mechanical soft start device), and belt drive system is asynchronous motor+little, big belt pulley+belt.
Along with underground coal mine is to working face equipment power, the improving constantly of capacity, the power-performance of hammer mill is greatly improved.The collection of the domestic and international Cracking Mechanism to hammer mill, disintegrating machine design theory research and practical data is at present concluded and is still had blank, and particularly the design studies of China's hammer mill is still in the imitated state of high-end international product.Core component in hammer mill also needs further research and development.For effectively coarse coal impact cutting being broken into required lumpiness, give product high economic benefit again simultaneously.We have studied the hammer mill of permanent-magnet synchronous adjustable frequency motor Direct driver, eliminate the decelerator in traditional asynchronous driving system or the intermediate link such as belt pulley and the mechanical soft start such as belt iso-variable velocity device and fluid coupling device, the running of hammer axle assembly is by permanent-magnet synchronous adjustable frequency motor Direct driver.
Summary of the invention
In order to adapt to, existing underground coal mine hammer mill is efficient, energy-conservation, low noise, non-maintaining technical requirement, and the present invention provides a kind of hammer mill with New type driving system for existing underground coal mine transportation equipment.Adopt permanent-magnet synchronous adjustable frequency motor as the drive system of hammer mill, permanent-magnet synchronous adjustable frequency motor substitutes traditional asynchronous motor by shaft coupling and hammer axle assembly main shaft direct connection, and intermediate link decelerator or belt pulley and the mechanical soft start device such as belt iso-variable velocity device and fluid coupling are all cancelled.
The technical solution adopted in the present invention is: hammer mill drive system adopts novel power source-permanent-magnet synchronous adjustable frequency motor directly to drive, conventional asynchronous drive system is courageously improved, simplified the structure of hammer mill, intermediate link decelerator or belt pulley and the mechanical soft start device such as belt iso-variable velocity device and fluid coupling are all cancelled.
The hammer mill of above-mentioned permanent-magnet synchronous adjustable frequency motor Direct driver, wherein, permanent-magnet synchronous adjustable frequency motor 1 output shaft is by shaft coupling 2 and hammer axle assembly 3 main shaft side input direct connection, the hammer axle assembly 3 of large inertia is driven to rotate, make to be fastened on the large radius of gyration place of hammer axle assembly 3 tup to obtain enough impact velocitys broken by the coarse coal under it, the bearing block wherein hammering axle assembly 3 both sides into shape is positioned at frame plate semicircle spill place, crusher chamber assembly 4 both sides, and fastening by the briquetting of another half round concave shape of tool respectively; Outside permanent-magnet synchronous adjustable frequency motor 1 and crusher chamber assembly 4, gusset piece flange seam is located, and bolted on connection is fastening.
The hammer mill of above-mentioned permanent-magnet synchronous adjustable frequency motor Direct driver, wherein, drive system is only permanent-magnet synchronous adjustable frequency motor Direct driver, permanent-magnet synchronous adjustable frequency motor rated speed can set according to production actual demand, at present according to producing the empirical value scope of required hammer axle assembly 3 rotating speed at 365-270r/min, just in permanent-magnet synchronous adjustable frequency motor rated speed setting range, the slow-speed of revolution needed for hammering axle assembly 3 into shape directly obtains can be ensured, drive system saves decelerator or belt pulley and belt iso-variable velocity device, and device structure simplifies; Simultaneously permanent-magnet synchronous adjustable frequency motor can stepless speed regulation in rated speed, its starting torque is greater than same power asynchronous driving system, permanent-magnet synchronous adjustable frequency motor can start and smooth operation in the even acceleration of the hammer axle assembly 3 of Direct driver large inertia, drive system saves the mechanical soft start devices such as fluid coupling, still meets the requirement of on-the-spot hammer mill heavy load starting.
The hammer mill of above-mentioned permanent-magnet synchronous adjustable frequency motor Direct driver, wherein, permanent-magnet synchronous adjustable frequency motor transmission efficiency is 93-95%, and power factor is 93-95%, and energy-saving efficiency improves 20% than the 70-75% with power asynchronous driving system; Only need within every thousand hours, fill a lubricating grease in current permanent-magnet synchronous adjustable frequency motor operation process, eliminate the maintenance of the intermediate links such as the speed change gear in same power asynchronous driving system, mechanical soft start device, really achieve the non-maintaining of drive system; Permanent-magnet synchronous adjustable frequency motor can stepless speed regulation in rated speed by VFC output speed, hammer mill is run under optimum state, manipulates easy, improve the production efficiency of hammer mill.
The hammer mill of above-mentioned permanent-magnet synchronous adjustable frequency motor Direct driver, wherein, drive system is only permanent-magnet synchronous adjustable frequency motor, and be Direct driver with hammer mill executive component-hammer axle assembly connection form, permanent-magnet synchronous adjustable frequency motor can by associated transducer SERVO CONTROL.
The invention has the beneficial effects as follows: the application of the straight drive system of novel permanent magnetic makes that hammer mill driving system structure simplifies, volume reduces and weight saving, the horizontal physical dimension of hammer mill reduces, better can adapt to the different spaces size of underground tunneling roadway, the partially heavy situation of equipment is also improved simultaneously; Realizing hammer mill to the basic function that material enforcement is broken while, improve the machinery driving efficiency of equipment, the startup of disintegrating machine, stopping and operate power loss significantly reduce, reach energy-saving and cost-reducing object, the man power and material saving speed change gear and mechanical soft start device needs safeguards, by VFC, the hammer mill speed of service can regulate in real time, improves the production efficiency of hammer mill.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the hammer mill transverse sectional view proposed according to the present invention;
Fig. 2 is the longitudinal general illustration of hammer mill proposed according to the present invention;
Fig. 3 is the permanent-magnet synchronous adjustable frequency motor appearance schematic diagram proposed according to the present invention;
Fig. 4 is the hammer mill crusher chamber component interface schematic diagram proposed according to the present invention.
In figure .1 is permanent-magnet synchronous adjustable frequency motor. and 2 is shaft coupling. and 3 is hammer axle assembly, 4. crusher chamber assembly
L: hammer mill horizontal maximum size; L1: the axial full-size of permanent-magnet synchronous adjustable frequency motor
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described, but it is only preferred embodiment, is not used for limiting essential scope of the present invention.
Incorporated by reference to reference to figure 1, Fig. 2, Fig. 3 and Fig. 4, wherein Fig. 1 is the hammer mill transverse sectional view proposed according to the present invention, Fig. 2 is the longitudinal general illustration of hammer mill proposed according to the present invention, Fig. 3 is the permanent-magnet synchronous adjustable frequency motor appearance schematic diagram proposed according to the present invention, Fig. 4 is the hammer mill crusher chamber component interface schematic diagram proposed according to the present invention, as shown in the figure, the hammer mill structure of permanent-magnet synchronous adjustable frequency motor Direct driver of the present invention mainly comprises: permanent-magnet synchronous adjustable frequency motor 1, shaft coupling 2. hammers axle assembly 3 and crusher chamber assembly 4 into shape.Wherein permanent-magnet synchronous adjustable frequency motor 1 output shaft is by shaft coupling 2 and hammer axle assembly 3 main shaft side input direct connection, the hammer axle assembly 3 of large inertia is driven to rotate, make to be fastened on the large radius of gyration place of hammer axle assembly 3 tup obtain enough impact velocitys, be able to broken by the coarse coal under it, the bearing block wherein hammering axle assembly 3 both sides into shape is positioned at frame plate semicircle spill place, crusher chamber assembly 4 both sides, and fastening by the briquetting of another half round concave shape of tool respectively; Outside permanent-magnet synchronous adjustable frequency motor 1 and crusher chamber assembly 4, gusset piece flange seam is located, and bolted on connection is fastening.
Incorporated by reference to reference to figure 1, it is the hammer mill transverse sectional view proposed according to the present invention, also be the straight drive and transmission system schematic diagram of hammer mill, drive system is only permanent-magnet synchronous adjustable frequency motor Direct driver, permanent-magnet synchronous adjustable frequency motor rated speed can set according to production actual demand, at present according to producing the empirical value scope of required hammer axle assembly 3 rotating speed at 365-270r/min, just in permanent-magnet synchronous adjustable frequency motor rated speed setting range, the slow-speed of revolution needed for hammering axle assembly 3 into shape directly obtains can be ensured, drive system saves decelerator or belt pulley and belt iso-variable velocity device, device structure simplifies, simultaneously permanent-magnet synchronous adjustable frequency motor can stepless speed regulation in rated speed, its starting torque is greater than same power asynchronous driving system, permanent-magnet synchronous adjustable frequency motor can start and smooth operation in the even acceleration of the hammer axle assembly 3 of Direct driver large inertia, drive system saves the mechanical soft start devices such as fluid coupling, still meets the requirement of on-the-spot hammer mill heavy load starting.
Simultaneously because permanent-magnet synchronous adjustable frequency motor transmission efficiency is 93-95%, power factor is 93-95%, and energy-saving efficiency improves 20% than the 70-75% with power asynchronous driving system; Only need within every thousand hours, fill a lubricating grease in current permanent-magnet synchronous adjustable frequency motor operation process, eliminate the maintenance of the intermediate links such as the speed change gear in same power asynchronous driving system, mechanical soft start device, really achieve the non-maintaining of drive system; Permanent-magnet synchronous adjustable frequency motor can stepless speed regulation in rated speed by VFC output speed, hammer mill is run under optimum state, manipulates easy, improve the production efficiency of hammer mill.
Shaft coupling in the hammer mill structure of permanent-magnet synchronous adjustable frequency motor Direct driver of the present invention is the Novel double offset ring shaft coupling in coupling with non-metallic elastic element in the preferred embodiment, also can take other associated modes according to actual needs, the coupling with non-metallic elastic element that Design of Safety Pin Coupling is compact with other physical dimensions all can adopt.
Incorporated by reference to reference to figure 2 being the longitudinal general illustration of hammer mill proposed according to the present invention, Fig. 3 is the permanent-magnet synchronous adjustable frequency motor appearance schematic diagram proposed according to the present invention, because hammer axle assembly 3 shafting structure is symmetric design, can according to need of production, the drive system of the hammer mill of permanent-magnet synchronous adjustable frequency motor Direct driver of the present invention still mounts in crusher chamber assembly 4 either side similarly to the prior art, but because the drive system speed change gear of the hammer mill of permanent-magnet synchronous adjustable frequency motor Direct driver of the present invention and soft starting device are removed, what then crusher chamber assembly 4 side mounted is only permanent-magnet synchronous adjustable frequency motor, volumentary geometry size reduces and weight saving, wherein only full-size L1 axial to permanent-magnet synchronous adjustable frequency motor is relevant for hammer mill horizontal maximum size L, the phenomenon that tradition hammer mill sinks partially is greatly improved.
The hammer mill of permanent-magnet synchronous adjustable frequency motor Direct driver of the present invention, the drive system that the drive system of described hammer mill is described is in the preferred embodiment permanent-magnet synchronous adjustable frequency motor, be Direct driver with hammer mill executive component-hammer axle assembly connection form, wherein permanent-magnet synchronous adjustable frequency motor can by associated transducer SERVO CONTROL.
Above telling is only the schematic detailed description of the invention of the present invention; and be not used to limit scope of the present invention; any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (4)
1. the hammer mill of a permanent-magnet synchronous adjustable frequency motor Direct driver, by permanent-magnet synchronous adjustable frequency motor (1), shaft coupling (2), hammer axle assembly (3), crusher chamber assembly (4) is formed, it is characterized in that: permanent-magnet synchronous adjustable frequency motor (1) output shaft is by shaft coupling (2) and hammer axle assembly (3) main shaft side input direct connection, the hammer axle assembly (3) of large inertia is driven to rotate, make to be fastened on the large radius of gyration place of hammer axle assembly (3) tup to obtain enough impact velocitys broken by the coarse coal under it, the bearing block wherein hammering axle assembly (3) both sides into shape is positioned at frame plate semicircle spill place, crusher chamber assembly (4) both sides, and it is fastening by the briquetting of another half round concave shape of tool respectively, permanent-magnet synchronous adjustable frequency motor (1) is located with crusher chamber assembly (4) outside gusset piece flange seam, and bolted on connection is fastening.
2. the hammer mill of the permanent-magnet synchronous adjustable frequency motor Direct driver according to right 1, it is characterized in that: drive system is only permanent-magnet synchronous adjustable frequency motor Direct driver, permanent-magnet synchronous adjustable frequency motor rated speed can set according to production actual demand, at present according to producing the empirical value scope of required hammer axle assembly (3) rotating speed at 365-270r/min, just in permanent-magnet synchronous adjustable frequency motor rated speed setting range, the slow-speed of revolution needed for hammering axle assembly (3) into shape directly obtains can be ensured, drive system saves decelerator or belt pulley and belt iso-variable velocity device, device structure simplifies, simultaneously permanent-magnet synchronous adjustable frequency motor can stepless speed regulation in rated speed, its starting torque is greater than same power asynchronous driving system, permanent-magnet synchronous adjustable frequency motor can start and smooth operation in the even acceleration of the hammer axle assembly (3) of Direct driver large inertia, drive system saves the mechanical soft start devices such as fluid coupling, still meets the requirement of on-the-spot hammer mill heavy load starting.
3. the hammer mill of the permanent-magnet synchronous adjustable frequency motor Direct driver according to right 1, it is characterized in that: permanent-magnet synchronous adjustable frequency motor transmission efficiency is 93-95%, power factor is 93-95%, and energy-saving efficiency improves 20% than the 70-75% with power asynchronous driving system; Only need within every thousand hours, fill a lubricating grease in current permanent-magnet synchronous adjustable frequency motor operation process, eliminate the maintenance of the intermediate links such as the speed change gear in same power asynchronous driving system, mechanical soft start device, really achieve the non-maintaining of drive system; Permanent-magnet synchronous adjustable frequency motor can stepless speed regulation in rated speed by VFC output speed, hammer mill is run under optimum state, manipulates easy, improve the production efficiency of hammer mill.
4. a hammer mill, it is characterized in that, the drive system of described hammer mill unifies permanent-magnet synchronous adjustable frequency motor just like the drivetrain according to any one of claim 1-3, be Direct driver with hammer mill executive component-hammer axle assembly connection form, permanent-magnet synchronous adjustable frequency motor can by associated transducer SERVO CONTROL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334532.3A CN104971796A (en) | 2015-06-13 | 2015-06-13 | Hammer crusher directly driven through permanent magnet synchronous variable-frequency motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510334532.3A CN104971796A (en) | 2015-06-13 | 2015-06-13 | Hammer crusher directly driven through permanent magnet synchronous variable-frequency motor |
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| CN104971796A true CN104971796A (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510334532.3A Pending CN104971796A (en) | 2015-06-13 | 2015-06-13 | Hammer crusher directly driven through permanent magnet synchronous variable-frequency motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070082A (en) * | 2017-05-26 | 2017-08-18 | 莆田市坚强缝制设备有限公司 | It is straight to drive hammering machine |
| CN108080089A (en) * | 2017-11-21 | 2018-05-29 | 中煤张家口煤矿机械有限责任公司 | Mining double drive super high power hammer mill |
| CN110681449A (en) * | 2019-11-06 | 2020-01-14 | 中煤张家口煤矿机械有限责任公司 | Torque-limiting permanent magnet synchronous variable-frequency direct-drive crusher |
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| CN202137007U (en) * | 2011-07-01 | 2012-02-08 | 三一重型装备有限公司 | Double-geared roller crusher directly driven by rare earth permanent magnet synchronous motor |
| CN102513191A (en) * | 2011-11-23 | 2012-06-27 | 沈阳工业大学 | Center drive direct-driven system of low-speed and large-torque permanent magnet motor of ball mill |
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| CN204017925U (en) * | 2014-08-12 | 2014-12-17 | 泰山医学院 | A kind of semi-automatic energy-saving magnetic liner plate ball mill |
| US20150001323A1 (en) * | 2012-01-03 | 2015-01-01 | Metso Minerals, Inc. | Driving of rotating crusher elements |
| CN204170793U (en) * | 2014-10-29 | 2015-02-25 | 力博重工科技股份有限公司 | Novel direct drive synchronous permanent-magnet motor ball mill |
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2015
- 2015-06-13 CN CN201510334532.3A patent/CN104971796A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202137007U (en) * | 2011-07-01 | 2012-02-08 | 三一重型装备有限公司 | Double-geared roller crusher directly driven by rare earth permanent magnet synchronous motor |
| CN102513191A (en) * | 2011-11-23 | 2012-06-27 | 沈阳工业大学 | Center drive direct-driven system of low-speed and large-torque permanent magnet motor of ball mill |
| US20150001323A1 (en) * | 2012-01-03 | 2015-01-01 | Metso Minerals, Inc. | Driving of rotating crusher elements |
| CN102716855A (en) * | 2012-06-29 | 2012-10-10 | 冯桂宏 | Direct driving powder concentrator of vertical mill low-speed great-torque permanent-magnet electric motor and powder concentrating method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070082A (en) * | 2017-05-26 | 2017-08-18 | 莆田市坚强缝制设备有限公司 | It is straight to drive hammering machine |
| CN108080089A (en) * | 2017-11-21 | 2018-05-29 | 中煤张家口煤矿机械有限责任公司 | Mining double drive super high power hammer mill |
| CN110681449A (en) * | 2019-11-06 | 2020-01-14 | 中煤张家口煤矿机械有限责任公司 | Torque-limiting permanent magnet synchronous variable-frequency direct-drive crusher |
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