CN104226441B - A kind of three-head grinding machine - Google Patents

Abstract

A kind of three-head grinding machine, is related to the equipment that a kind of dry grinding analyzes sample, and it enables the multiple sample of simultaneous grinding, wide in range, continuously adjustable of grinding motor speed, and grinding material no has metallic pollution, stable and reliable operation.Including frequency conversion motor, base, swivel base, driving section, seat support plate, localizer, three sets of bistriques, clutch, mortar bearings, bistrique it is characterised in that：Mortar bearing and three sets of clutch are mutually 120 ° and are uniformly mounted on swivel base, and swivel base is arranged on the bearing of base, and swivel base can rotate on base；This equipment is mainly used in the departments such as geology, coal, mine, metallurgy, chemical industry, building materials, water power and the laboratory of universities and colleges, R＆D institution, is each alanysis, sorting, inspection, the standard device of chemical examination.

Description

A kind of three-head grinding machine

Technical field

The present invention relates to a kind of dry grinding analyzes the equipment of sample, more particularly, to a kind of grinder.

Background technology

Due to the development of mining industry technology, mining point mine grade need to be controlled in time, therefore how quickly to measure Ore Mine-containing amount is exactly a very important problem, and wherein hinders one of principal element of detection speed to be exactly the levigate of Ore, After existing method is mostly using crushing, unit grinds it is impossible to complete multiple sample detection simultaneously, and its shortcoming is time-consuming, takes a lot of work, and There is metallic pollution, the fixation of equipment grinding rate is non-adjustable.

Content of the invention

It is an object of the invention to provide a kind of three-head grinding machine, it enables the multiple sample of simultaneous grinding, grinds machine speed Spend wide in range, continuously adjustable, grinding material no has metallic pollution, stable and reliable operation.

The technical scheme is that a kind of three-head grinding machine, prop up including frequency conversion motor, base, swivel base, driving section, seat Plate, localizer, three sets of bistriques, clutch, mortar bearings, bistrique it is characterised in that：Mortar bearing and three sets of clutch are mutually 120 ° are uniformly mounted on swivel base, and swivel base is arranged on the bearing of base, and swivel base can rotate on base；Swivel base center is provided with Driving section, driving section top is flap, and the turning arm of bistrique is arranged on the flap of driving section, and frequency conversion motor is arranged on base On, by belt transmission to driving section, three clutches are arranged in driving section frequency conversion motor, and driving section is nibbled with gear with clutch Close transmission, clutch and mortar are also with meshed transmission gear；In base front surface equipped with splicing seat support plate and electrical equipment；Electrical equipment and frequency conversion Motor is connected；Frequency conversion motor starts by belt pulley drive driving section, when clutch is connected, clutch gear shaft, universal joint Band rotary bistrique rotation；Clutch gear shaft also engages with the travelling gear B of mortar bearing, drives mortar also to rotate；Due to pestle Rotating forward and the rotation in the same direction of mortar produce relative slip, by means of the deadweight generation levigate material of pressure of bistrique；Clutch is normally closed Dry friction clutch, clutch includes active part and secondary part, clutch outer member, clutch case, and clutch case is installed In clutch outer member one end, active part includes：Driven by clutches wheel, bearing A；Bearing A, bearing are installed in driven by clutches wheel A is arranged on clutch gear shaft；Secondary part includes clutch gear shaft and driven set, and driven set is fixedly mounted on clutch On gear shaft, clutch gear shaft installs bearing B, clutch drive gear, bearing A, driven set, bullet upwards successively from lower end Spring, spring retaining sleeve, bearing C, clutch case；Axle sleeve, positioning sleeve be arranged on driven put, friction plate install driven set bottom, Between the spring retaining sleeve on clutch gear shaft and positioning sleeve, driven set, through shaft-cup, is fixed on outside clutch spring housing The lower end of shell, the located set connecting spring of driven set；The other end of clutch gear shaft is arranged on clutch outer member through bearing C Interior；Clutch gear shaft upper end universal-joint, lower end is arranged on base；The fixation of clutch lever warp beam sleeve is placed on driven set On, clutch lever one end rides on supporting screw, and the other end is provided with set screw, and set screw is pressed on straight pin；Straight pin It is arranged on swivel base, its lower end is contacted with the eccentric in rotary shaft, fix on swivel base by positioning seat in the middle part of rotary shaft, the other end Stretch out outside swivel base, and clutch handle is installed；The combination of clutch and disengagement are the upper bottom around support pin by clutch lever Dynamic realization, when clutch lever is lifted, spring is compressed, and friction plate is disengaged with clutch drive gear, when clutch lever moves down, Spring reset, wearing piece is fitted with clutch drive gear end face, and driven set drives clutch gear shaft that power is uploaded to ten thousand Xiang Jie, travelling gear C pass to mortar travelling gear B；Moving up and down of clutch lever is realized by controlled clutch handle, clutch Handle turns right and drives rotary shaft to rotate, and rotary shaft other end eccentric promotes straight pin, puts down set screw, clutch lever Move down, clutch is fitted, when clutch handle rotates counterclockwise to the left side, the axle being contained in rotating disk leans on wobbler action to promote cylinder Pin, the set screw of jack-up clutch lever, clutch lever is swung up, and drives driven putting to move friction plate and driven by clutches Wheel disengages；In use, when friction disc wear, nut can be unclamped, adjust downwards adjustment screw, reach optimum efficiency； Because every a pair of lap tool is all by single clutch operating, the motion of therefore three pairs of lap tools is independent of each other, and can either work simultaneously, Also one pair of which or two can be made to work；Grinding wheel head structure；Including turning arm shell, bistrique operation handle, gear shaft A, taper Gear, rotating shaft, bistrique bearing block, pestle seat, pestle；Gear shaft A one end universal-joint, one end connects tapered gear A, tapered Gear A is engaged with angular wheel B, and angular wheel B is fixed in rotating shaft, and the lower end of rotating shaft connects bistrique bearing block, bistrique bearing Connect pestle under seat, outside pestle, be cased with pestle seat；When power is transmitted by clutch, universal joint, by the bevel gear band on gear shaft A Dynamic power transmission shaft rotation, due to wobbler action, rotating shaft drives bistrique bearing block and pestle seat thereon, and pestle makees rotation fortune around axle Dynamic；Equipped with two axles, this two axles are attached separately on the bearing of bearing block, are fixed on flap for the turning arm both sides of bistrique, because This turning arm can rotate around the axial line of axle；In order to adjust wheelhead pressure, it is respectively arranged with one in the outside of left and right jointed shaft bearing Disc spring, its one end is stuck on hinged headkerchief, and the other end is stuck on jointed shaft；When unclamping button-headed screw, if towards grinding Mill center departure direction rotates hinged headkerchief, then disc spring is tightened up, and the pressure of bistrique can suitably reduce；Conversely, the pressure of then bistrique Can suitably increase；User voluntarily can adjust according to different grinding objects, adjusts the elastic regulation to realize wheelhead pressure of disc spring； Mortar bearing：Including alms bowl base, mortar, alms bowl cover, alms bowl disk, the sassafras ring that rubs, bowl switching mechanism, bowl drive mechanism, alms bowl cover is installed At mortar upper opening, mortar is arranged in alms bowl disk, and alms bowl tray bottom is provided with the sassafras ring that rubs, and alms bowl disk center is with bowl switching mechanism even Connect, can rotate relative to bowl switching mechanism；The interior lower edge of sassafras ring of rubbing is contacted with the friction wheel of bowl drive mechanism, and bowl overturns Mechanism includes bowl operation handle, mortar trip shaft, mortar bearing block, and bowl operation handle is arranged on the outer of mortar trip shaft End, mortar trip shaft is arranged on alms bowl base side along upper, and mortar bearing block one end is inner with mortar trip shaft to be connected, mortar bearing block The other end is connected with alms bowl disk by axle C；Bowl drive mechanism includes axle D, travelling gear B, positioning sleeve A, friction pulley, and axle D upper end is pacified Dress friction pulley, the located set in middle part is fixed on alms bowl base, and travelling gear B is installed in axle D lower end, when power is by clutch teeth wheel belt When nutating gear B transmits, friction pulley drives drag ring, so that mortar rotation;When lifting bistrique, take off alms bowl cover, mortar is grasped Make to draw outside handle, drive mortar trip shaft B rotation, drive mortar bearing block to rotate mortar, pour out the material of milled；Positioning Device：Including localizer lever, taper knob, bearing bracket, bracing frame, lever back-moving spring, localizer lever is installed by bracing frame On base, localizer lever stretches out one end of base equipped with taper knob, and the other end is by spring holder and lever back-moving spring Connect, the lever back-moving spring other end is fixed on base, and bearing bracket is arranged on the localizer thick stick between taper knob and bracing frame On bar, equipped with bearing, so that when bearing bracket exits locating slot, bearing bracket is contacted with swivel base by bearing for bearing bracket upper end, Reduce frictional force when rotating swivel base；Localizer arrange gang switch, gently click taper knob during use, bearing bracket from turn Exit in the locating slot of seat, now gang switch is opened, and swivel base rotates automatically it would be desirable to the grinding head operating goes to operator face Before, realize transposition, when rotating disk goes to desired location, bearing bracket embeds realizes transposition in swivel base groove, gang switch cuts out, and turns Seat stops the rotation；Operator generally sits at equipment front splicing seat support plate at ordinary times, manipulates switch, clutch handle and positioning handss Handle can operate successively to three lap tools.

In order to adapt to the requirement of levigate various materials, bistrique pestle, mortar are made using Achatess, it is to avoid metallic pollution；Three It is provided with dividing plate between lap tool, in case sample is intermixed.

During use：

1. feed；Bistrique is up lifted by being placed on flap, take down the cover on mortar and will treat that grind materials put into bowl Interior, cover on cover, puts down bistrique.

2. grind；Start motor, rotate clockwise clutch handle, you can close friction clutch, so that bistrique mortar is turned Dynamic, thus being ground to material.

3. discharging；Rotate counterclockwise clutch handle and disconnect friction clutch, make pestle and mortar stop motion.Lift mill Head, takes off alms bowl cover, splicing container is put in the relevant position of splicing frame, and rotating makes positioned at mortar upper left mortar handle reverse Mortar rotation rises to puts above material receiver, enters in splicing container with hairbrush by the material powders brush in mortar, will after discharging is complete Mortar resets, and restarts to feed.

4. indexing；When motor needs bistrique transposition in the running, as long as gently pressed with left hand being located at splicing frame The localizer taper knob of lower left, grinder top can voluntarily rotate, and is another mortar to discharge position when going to 120 ° When, voluntarily stop.When needing transposition in the case that motor does not operate, operational approach is the same, but needs to turn one with handss are light Lower rotary table.

The having the beneficial effects that of three-head grinding machine：Have to ground sample no metallic pollution, grinding material is uniform, ultra-fine, Simple to operate, equipment operation noise is little etc..It is mainly used in the departments such as geology, coal, mine, metallurgy, chemical industry, building materials, water power With the laboratory of universities and colleges, R＆D institution, it is each alanysis, sorting, inspection, the standard device of chemical examination.Can also be used for quality inspection, Environmental protection tests or be used for the levigate typically a small amount of material of the parties concerned.

Further illustrated with specific embodiment and accompanying drawing below

Fig. 1 is shape assumption diagram of the present invention

Fig. 2 is grinding wheel head structure sectional view of the present invention

Fig. 3 is that turning arm A of the present invention amplifies partial sectional view to pressure control structure

Fig. 4 is accompanying drawing 2 I I of the present invention to bistrique bearing block structure amplification view

Fig. 5 is accompanying drawing 3B-B disc spring installment state cross-sectional schematic of the present invention

Fig. 6 is mortar seat structure cross-sectional schematic of the present invention

Fig. 7 is locator structure schematic diagram of the present invention

Fig. 8 is accompanying drawing 7 I I direction localizer bearing block structure cross-sectional schematic of the present invention

Fig. 9 is accompanying drawing 7 II II direction localizer support frame structure cross-sectional schematic of the present invention

Figure 10 is clutch configuration cross-sectional schematic of the present invention

Figure 11 is clutch operating arm configuration schematic diagram of the present invention

Figure 12 is clutch fixed seat structure cross-sectional schematic of the present invention

In figure：Frequency conversion motor 1, bistrique 2, mortar bearing 3, localizer 4, seat support plate 5, electrical equipment 6, clutch 7, base 8, turn Seat 9, flap 10, dividing plate 11, turning arm handing-over 12, angular wheel B201, rotating shaft 202, bistrique bearing block 203, pestle seat 204, Pestle 205, turning arm shell 206, universal joint 207, gear shaft 208, angular wheel A209, tupelo 210, bistrique operation handle 211st, disc spring 212, jointed shaft bearing 213, axle 214, half button head screw 215, hinged headkerchief 216, jointed shaft 218, steady pin 220, In bearing block overcoat 221, cross axle A222, bearing E223, bearing F224, cross axle B225, bearing block outer housing 226, bearing block The outer core 228 of core 227, bearing block, mortar operation handle 301, mortar 302, drag ring 303, mortar bearing block 304, mortar upset Axle 305, mortar bottom 306, travelling gear B307, alms bowl base 308, friction pulley 309, alms bowl cover 310, alms bowl disk 311, taper knob 401, fixed Position device lever 402, bearing bracket fixed mount 403, bearing bracket 404, bracing frame 405, spring holder 406, lever reset bullet Spring 407, bearing F408, locating slot 409, spring 501, clutch gear shaft 502, set screw 503, nut 504, positioning seat 505th, rotary shaft 506, positioning sleeve 507, straight pin 508, friction plate 509, clutch drive gear 510, bearing B511, driving cog Wheel C, driven set 513, supporting screw 514, clutch lever 515, axle sleeve 516, positioning sleeve 517, spring positioning sleeve 518, bearing C, Clutch case 520, clutch handle 521, shaft-cup 522, clutch outer member 523.

Specific embodiment

A kind of three-head grinding machine, including frequency conversion motor 1, base 8, transposase 19, driving section, seat support plate 5,4, three sets of localizer Bistrique 2, clutch 7, mortar bearing 3, bistrique 2, mortar bearing 3 and 7 three sets of clutch are mutually 120 ° and are uniformly mounted to transposase 19 On, transposase 19 is arranged on the bearing of base 8, and transposase 19 can rotate on base 8；Transposase 19 center is provided with driving section, and driving section is pushed up Portion is flap 10, and the turning arm of bistrique 2 is arranged on the flap 10 of driving section, and frequency conversion motor 1 is arranged on base 8, variable-frequency electric , by belt transmission to driving section, three clutches 7 are arranged in driving section, and driving section engages biography with clutch 7 with gear for machine 1 Dynamic, clutch 7 and mortar 302 are also with meshed transmission gear；In base 8 front equipped with splicing seat support plate 5 and electrical equipment 6；Electrical equipment 6 with Frequency conversion motor 1 is connected；Frequency conversion motor 1 starts by belt pulley drive driving section, when clutch 7 is connected, clutch gear shaft 502, universal joint 207 band rotary bistrique 2 rotates；The travelling gear B of the other end of clutch gear shaft 502 and mortar 302 bearing nibbles Close, drive mortar 302 also to rotate；Rotating forward due to pestle 205 produces relative slip with the rotation in the same direction of mortar 302, by means of bistrique 2 Deadweight produce the levigate material of pressure；Clutch is normally closed dry friction clutch, and clutch includes active part and follower Point, clutch outer member, clutch case 520, clutch case 520 is arranged on clutch outer member one end, and active part includes：Clutch Drive 510, bearing A；Bearing A is installed in driven by clutches wheel 510, bearing A is arranged on clutch gear shaft 502；Driven Part includes clutch gear shaft 502 and driven set 513, and driven set 513 is fixedly mounted on clutch gear shaft 502, clutch Device gear shaft 502 installs bearing B511, clutch drive gear 510, bearing A, driven set 513, spring upwards successively from lower end 501st, spring retaining sleeve 518, bearing C519, clutch case 520；Axle sleeve 516, positioning sleeve 517 are arranged on driven set 513, rub Pad 509 installs driven set 513 bottoms, and spring 501 is enclosed within spring retaining sleeve 518 and positioning sleeve on clutch gear shaft 502 Between 517, driven set 513 passes through shaft-cup 522, is fixed on the lower end of clutch outer member 523, and driven set 513 is located to cover 517 even Connect spring 501；The other end of clutch gear shaft 502 is arranged in clutch outer member 523 through bearing C519；Clutch gear shaft 502 upper end universal-joints 207, lower end is arranged on transposase 19；Clutch lever 515 warp beam sleeve 516 fixation is placed on driven set 513 On, clutch lever 515 one end rides on supporting screw 514, and the other end is provided with set screw 503, and set screw 503 is pressed in cylinder On pin 508；Straight pin 508 is arranged on transposase 19, and its lower end is contacted with the eccentric in rotary shaft 506, in the middle part of rotary shaft 506 By on the fixing transposase 19 of positioning sleeve 507, the other end stretches out outside transposase 19, and is provided with clutch handle 521；The combination of clutch It is the realization that swings up and down around supporting screw 514 by clutch lever 515 with disengaging, when clutch lever 515 is lifted, spring 501 Compressed, friction plate 509 is disengaged with clutch drive gear 510, when clutch lever 515 moves down, spring 501 resets, friction plate 509 are fitted with clutch drive gear 510 end face, and power is uploaded to universal joint by driven set 513 drive clutch gear shaft 592 207, travelling gear C pass to mortar travelling gear B；Moving up and down of clutch lever 515 is realized by controlled clutch handle 521, Clutch handle 521 turns right and drives rotary shaft 506 to rotate, and rotary shaft 506 other end eccentric promotes straight pin 508, puts Lower set screw 503, clutch lever 515 moves down, and clutch is fitted, and when clutch handle 521 rotates counterclockwise to the left side, is contained in Rotary shaft 506 in rotating disk leans on wobbler action to promote straight pin 508, the set screw 503 of jack-up clutch lever 515, clutch Lever 515 is swung up, and the driven set 513 of drive moves and disengages friction plate 509 with driven by clutches wheel 510；Using process In, when friction plate 509 weares and teares, nut 504 can be unclamped, adjust downwards adjustment screw 503, reach optimum efficiency；Due to each To lap tool all by single clutch operating, the motion of therefore three pairs of lap tools is independent of each other, and can either work it is also possible to make simultaneously One pair of which or two is to work；Grinding wheel head structure：Including turning arm shell 206, bistrique operation handle 211, gear shaft 208, taper Gear, rotating shaft 202, bistrique bearing block 203, pestle seat 204, pestle 205；Gear shaft 208 one end universal-joint 207, one end Connect tapered gear A209, tapered gear A209 is engaged with angular wheel B201, angular wheel B201 is fixed in rotating shaft 202, Connect pestle 205 under the lower end connection bistrique bearing block 203 of rotating shaft 202, bistrique bearing block 203, outside pestle 205, be cased with pestle seat 204；When power is transmitted by clutch, universal joint 207, rotating shaft rotation is driven by the angular wheel A209 on gear shaft 208, by In wobbler action, rotating shaft drives bistrique bearing block 203 and pestle seat 204 thereon, and pestle 205 is around axis rotation；Bistrique Turning arm both sides equipped with two axles, this two axles are attached separately on the bearing of bearing block, are fixed on flap, therefore turning arm Can rotate around the axial line of axle；In order to adjust wheelhead pressure, it is respectively arranged with a disc spring in the outside of left and right jointed shaft bearing 213 212, its one end is stuck on hinged headkerchief 216, and the other end is stuck on jointed shaft 218；When unclamping button-headed screw 215, such as Fruit rotates hinged headkerchief 216 towards grinding center departure direction, then disc spring 212 is tightened up, and the pressure of bistrique can suitably reduce；Instead It, then the pressure of bistrique can suitably increase；User voluntarily can adjust according to different grinding objects, adjusts the elastic next of disc spring 212 Realize the regulation of wheelhead pressure；Mortar bearing：Including alms bowl base 308, mortar 302, alms bowl cover 310, alms bowl disk 311, the sassafras ring 303 that rubs, Bowl switching mechanism, bowl drive mechanism, alms bowl cover 310 is arranged at mortar 302 upper opening, and mortar 302 is arranged on alms bowl disk 311 In, alms bowl disk 311 bottom is provided with the sassafras ring 303 that rubs, and Bo Pan 311 center is connected with bowl switching mechanism, can relative bowl tipper Structure rotates；The interior lower edge of sassafras ring 303 of rubbing is contacted with the friction wheel 309 of bowl drive mechanism, and bowl switching mechanism includes bowl behaviour Make handle 301, mortar trip shaft 305, mortar bearing block 304, bowl operation handle 301 is arranged on the outer of mortar trip shaft 305 End, mortar trip shaft 305 is arranged on alms bowl base side along upper, and mortar bearing block 304 one end is inner with mortar trip shaft 305 to be connected, Mortar bearing block 304 other end is connected with alms bowl disk 311 by axle C312；Bowl drive mechanism includes axle D313, travelling gear B307, positioning sleeve A314, friction pulley 309, friction pulley 309 is installed in axle D313 upper end, and middle part located set A314 is fixed on alms bowl bottom On seat 308, travelling gear B307 is installed in axle D313 lower end, when power carries nutating gear B307 by clutch drive gear C512 When transmitting, friction pulley 309 drives drag ring 303, so that mortar 302 rotates;When lifting bistrique, take off alms bowl cover 310, mortar is grasped Make to draw outside handle 301, drive mortar trip shaft 305 to rotate, drive mortar bearing block 304 to rotate mortar, pour out milled Material；Localizer：Including localizer lever 402, taper knob 401, bearing bracket 404, bracing frame 405, lever back-moving spring 407, localizer lever 402 is arranged on base 8 by bracing frame 405, and localizer lever 402 stretches out one end of base 8 equipped with handss Sleeve 401, the other end is connected with lever back-moving spring 407 by spring holder 406, and lever back-moving spring 407 other end is fixed On base 8, bearing bracket 404 is arranged on the localizer lever 402 between taper knob 401 and bracing frame 405, bearing bracket Equipped with bearing, so that when bearing bracket 404 exits locating slot 409, bearing bracket 404 is contacted with transposase 19 by bearing for 404 upper ends, Reduce frictional force when rotating transposase 19, localizer arranges gang switch, gently clicks taper knob 401, bearing bracket during use 404 exit from the locating slot 409 of transposase 19, and now gang switch is opened, and transposase 19 rotates the grinding head it would be desirable to operate automatically Go in face of operator, realize transposition, when rotating disk goes to desired location, bearing bracket 404 embeds realizes transposition in swivel base groove； Gang switch cuts out, and transposase 19 stops the rotation；

Operator generally sits at equipment front splicing frame at ordinary times, manipulates switch, clutch handle and position fixing handle Three lap tools are operated successively.

In order to adapt to the requirement of levigate various materials, bistrique pestle, mortar are made using Achatess, be provided between three lap tools every Plate, in case sample is intermixed.

Claims (3)

1. a kind of three-head grinding machine, including frequency conversion motor, base, swivel base, driving section, seat support plate, localizer, three sets of bistriques, from Clutch, mortar bearing, bistrique, mortar bearing and three sets of clutch are mutually 120 ° and are uniformly mounted on swivel base, and swivel base is arranged on On the bearing of base, swivel base rotates on base；Swivel base center is provided with driving section, and driving section top is flap, the rotation of bistrique Arm is arranged on the flap of driving section, and frequency conversion motor is arranged on base, frequency conversion motor by belt transmission to driving section, three from Clutch is arranged in driving section, and, with meshed transmission gear, clutch and mortar are also with meshed transmission gear for driving section and clutch； In base front surface equipped with splicing seat support plate and electrical equipment；Electrical equipment is connected with frequency conversion motor；Frequency conversion motor startup is driven by belt pulley Driving section, when clutch is connected, clutch gear shaft, the rotation of universal joint band rotary bistrique；Clutch gear shaft also props up with mortar The travelling gear B engagement of seat, drives mortar also to rotate；Rotating forward due to pestle produces relative slip with the rotation in the same direction of mortar, Deadweight by means of bistrique produces the levigate material of pressure；It is characterized in that：Clutch is normally closed dry friction clutch, and clutch includes Active part and secondary part, clutch outer member, clutch case, clutch case is arranged on clutch outer member one end, active part Including：Driven by clutches wheel, bearing A；Bearing A is installed in driven by clutches wheel, bearing A is arranged on clutch gear shaft；From Dynamic part includes clutch gear shaft and driven set, and driven set is fixedly mounted on clutch gear shaft, and clutch gear shaft is certainly Lower end installs bearing B, clutch drive gear, bearing A, driven set, spring, spring retaining sleeve, bearing C, clutch upwards successively Device lid；Axle sleeve, positioning sleeve be arranged on driven put, friction plate install driven set bottom, spring housing is on clutch gear shaft Between spring retaining sleeve and positioning sleeve, driven set, through shaft-cup, is fixed on the lower end of clutch outer member, and driven set is located to be covered even Connect spring；The other end of clutch gear shaft is arranged in clutch outer member through bearing C；Clutch gear shaft upper end connects universal Section, lower end is arranged on base；Clutch lever warp beam sleeve fixation be placed on driven put, clutch lever one end rides over supporting screw On, the other end is provided with set screw, and set screw is pressed on straight pin；Straight pin is arranged on swivel base, its lower end and rotary shaft On eccentric contact, by the fixing swivel base of positioning seat in the middle part of rotary shaft, the other end stretches out outside swivel base, and is provided with clutch Handle；The combination of clutch and to disengage be the realization that swings up and down around support pin by clutch lever, when clutch lever is lifted, spring Compressed, friction plate is disengaged with clutch drive gear, when clutch lever moves down, spring reset, wearing piece and driven by clutches Gear face is fitted, and driven set drives clutch gear shaft that power is uploaded to universal joint, and travelling gear C passes to mortar driving cog Wheel B；Moving up and down of clutch lever is realized by controlled clutch handle, and clutch handle turns right and drives rotary shaft to rotate, Rotary shaft other end eccentric promotes straight pin, puts down set screw, clutch lever moves down, and clutch is fitted, clutch handle When rotating counterclockwise to the left side, it is contained in axle in rotating disk and leans on wobbler action to promote straight pin, the set screw of jack-up clutch lever, Clutch lever is swung up, and drives driven putting to move friction plate and the disengagement of driven by clutches wheel；In use, work as friction During pad wear, unclamp nut, adjust downwards adjustment screw, reach optimum efficiency；Because every a pair of lap tool is all by single clutch Device operates, and the motion of therefore three pairs of lap tools is independent of each other, and can either work it is also possible to make one pair of which or two to work simultaneously； Grinding wheel head structure；Including turning arm shell, bistrique operation handle, gear shaft A, angular wheel, rotating shaft, bistrique bearing block, pestle seat, Pestle；Gear shaft A one end universal-joint, one end connects tapered gear A, tapered gear A is engaged with angular wheel B, conical tooth Wheel B is fixed in rotating shaft, connects pestle, be cased with pestle seat outside pestle under the lower end connection bistrique bearing block of rotating shaft, bistrique bearing block； When power is transmitted by clutch, universal joint, power transmission shaft rotation is driven by the bevel gear on gear shaft A, due to wobbler action, turn Axle drives bistrique bearing block and pestle seat thereon, and pestle is around axis rotation；The turning arm both sides of bistrique equipped with two axles, This two axles are attached separately on the bearing of bearing block, are fixed on flap, and therefore turning arm can rotate around the axial line of axle；In order to Adjustment wheelhead pressure, is respectively arranged with a disc spring in the outside of left and right jointed shaft bearing, its one end is stuck on hinged headkerchief, another End is stuck on jointed shaft；When unclamping button-headed screw, if rotating hinged headkerchief, disc spring towards grinding center departure direction Tighten up, the pressure of bistrique reduces；Conversely, then the pressure of bistrique increases；User voluntarily adjusts according to different grinding objects, adjustment disk The elastic regulation to realize wheelhead pressure of spring；Mortar bearing：Turn over including alms bowl base, mortar, alms bowl cover, alms bowl disk, the sassafras ring that rubs, bowl Rotation mechanism, bowl drive mechanism, alms bowl cover is arranged at mortar upper opening, and mortar is arranged in alms bowl disk, and alms bowl tray bottom is provided with rubs Sassafras ring, alms bowl disk center is connected with bowl switching mechanism, rotates relative to bowl switching mechanism；The interior lower edge of sassafras ring of rubbing and bowl drive The friction wheel contact of mechanism, bowl switching mechanism includes bowl operation handle, mortar trip shaft, mortar bearing block, and bowl operates Handle is arranged on the outer end of mortar trip shaft, and mortar trip shaft is arranged on alms bowl base side along upper, mortar bearing block one end and mortar Trip shaft is inner to be connected, and the mortar bearing block other end is connected with alms bowl disk by axle C；Bowl drive mechanism includes axle D, travelling gear B, positioning sleeve A, friction pulley, friction pulley is installed in axle D upper end, and the located set in middle part is fixed on alms bowl base, and transmission is installed in axle D lower end Gear B, when power is transmitted by clutch gear band nutating gear B, friction pulley drives drag ring, so that mortar rotation; When lifting bistrique, take off alms bowl cover, draw outside mortar operation handle, drive mortar trip shaft B rotation, drive mortar bearing block by mortar Rotation, pours out the material of milled；Localizer：Including localizer lever, taper knob, bearing bracket, bracing frame, lever reset bullet Spring, localizer lever is arranged on base by bracing frame, and localizer lever stretches out one end of base equipped with taper knob, the other end by Spring holder is connected with lever back-moving spring, and the lever back-moving spring other end is fixed on base, and bearing bracket is arranged on handss On localizer lever between sleeve and bracing frame, bearing bracket upper end equipped with bearing so that when bearing bracket exits locating slot, axle Support bracket is contacted with swivel base by bearing, reduces frictional force when rotating swivel base；Localizer arranges gang switch, gently presses during use Taper knob once, bearing bracket exits from the locating slot of swivel base, now gang switch open, swivel base automatically rotate it would be desirable to The grinding head of operation goes in face of operator, realizes transposition, and when rotating disk goes to desired location, bearing bracket embeds in swivel base groove Realize transposition, gang switch cuts out, swivel base stops the rotation.

2. a kind of three-head grinding machine according to claim 1 it is characterised in that：In order to adapt to wanting of levigate various materials Ask, bistrique pestle, mortar are made using Achatess, it is to avoid metallic pollution.

3. a kind of three-head grinding machine according to one of claim 1-2 it is characterised in that：It is provided with dividing plate between three lap tools, In case sample is intermixed.