CN208466054U - A kind of horizontal superfine sand mill of use for laboratory - Google Patents

Abstract

The utility model belongs to wet ultra-fine grinding apparatus field, and in particular to a kind of horizontal superfine sand mill of use for laboratory.The utility model includes pedestal and power motor；Pump case is arranged in side where the output shaft of power motor, and shaft is rotatable to be arranged in pump case pump chamber, and shaft and the output shaft of power motor are coaxial and affixed each other between the two；This sand mill further includes feed pipe and discharge nozzle；Shaft is the cantilevered construction of single-ended setting bearing block, and end where the bearing block of shaft is located at power motor direction, the cantilever end of shaft then coaxial affixed self-priming impeller；Feed pipe is through pump case and is connected to pump case pump chamber, and the feed inlet of self-priming impeller is directed toward in the outlet of feed pipe.The utility model uses internal-suction type feeding structure, to effectively simplify self construction, it more tends to own vol compact, is finally reached the purpose of the efficient refinement grinding of the material of middle low viscosity, is particularly suitable for the grinding refinement of micron order even nanometer materials.

Description

A kind of horizontal superfine sand mill of use for laboratory

Technical field

The utility model belongs to wet ultra-fine grinding apparatus field, and in particular to is used for micron order material even nanoscale The horizontal superfine sand mill of a kind of use for laboratory of grinding, the refinement of material.

Background technique

Horizontal superfine sand mill is also known as horizontal nanometer sand mill, and the country can uniquely substitute the sanding device of import equipment at present Tool.The working principle of horizontal superfine sand mill, the patent name referring to Chinese patent notification number " CN2307655Y " are " practical super The grinding device of fine sand grinding machine " is to be pumped by material by the solid-liquid phase mixture after the pre-dispersed wettability treatment of blender Material is sent into cylinder, and material and the intracorporal abrasive media of cylinder are stirred by high-speed rotating stirring tooth together, to make in material Solia particle and abrasive media generate stronger collision, friction, shear action each other, are finally reached and accelerate levigate particle With the purpose of disperse agglomerations.Above-mentioned existing horizontal superfine sand mill has problems in that: first, existing, no matter which kind of is horizontal Superfine sand mill be unable to do without external material pump all to pump mixed material.Since material pump itself is independent outside, so that existing horizontal super Fine sand grinding machine common configuration is huge, not only carries and use is extremely inconvenient, while purchase and maintenance cost also rise with it.Its Two, the stirring tooth in existing horizontal superfine sand mill, mostly directly from agitating shaft projection and formed, and existing abrasive media The metal ball for all using this extreme hardness of zirconium pearl, after the frequent impact stirring tooth of zirconium pearl high speed, because of the material difference of the two, Stirring tooth is commonplace by damage and the phenomenon that severing.Third, work heat dissipation problem.Existing horizontal superfine sand mill is due to needing Abrasive media is exceedingly fast with frequent collision, friction and shearing material, operating temperature rising for a long time, pure to be difficult to by natural air heat dissipation It ensures its normal sustained service, brings drastically reducing for existing sand mill frequency of use and service life therewith.Finally, abrasive media by In itself it is frequent mutually hit and friction, Fragmentation Phenomena is naturally extremely common, cause sand mill can not long time continuous working, Periodic disassembly, cleaning inner barrel must manually be carried out.Existing horizontal superfine sand mill is substantially dependence without structure is just torn open The affixed each component of the rigidity fastening means such as bolt, causes entire disassembly process complicated and wastes time, and makes to actual production maintenance At unnecessary trouble.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of structurally reasonable and use reliably just The prompt horizontal superfine sand mill of use for laboratory, the utility model uses internal-suction type feeding structure, to effectively simplify itself Construction, more tends to own vol compact, is finally reached the purpose of the efficient refinement grinding of the material of middle low viscosity, especially suitable Grinding refinement for micron order even nanometer materials.

To achieve the above object, the utility model uses following technical scheme:

A kind of horizontal superfine sand mill of use for laboratory, the power being lying on pedestal including pedestal and axis horizontal shape Motor；Pump case is arranged in side where the output shaft of power motor, and shaft is rotatable to be arranged in pump case pump chamber, shaft and power electric The output shaft of machine is coaxial and affixed to transmit power each other between the two, at the shaft axle body in pump case pump chamber radially outward It is extended with the stirring tooth for abrasive media in stirring pump case pump chamber；This sand mill further includes for feeding in pump case pump chamber Feed pipe and discharge nozzle for drawing material in pump case pump chamber；It is characterized by: shaft is the outstanding of single-ended setting bearing block Arm-type construction, and end where the bearing block of shaft is located at power motor direction, the cantilever end of shaft then coaxial affixed self-priming Formula impeller；Feed pipe is through pump case and is connected to pump case pump chamber, and the feed inlet of self-priming impeller is directed toward in the outlet of feed pipe.

Preferably, the self-priming impeller is two-period form ladder shaft-like；Endface where the reduced diameter section of self-priming impeller Axial indent arranges mounting hole, so that self-priming impeller can coaxially be arranged and be keyed at the cantilever end of shaft；Self-priming Endface where the enlarged diameter section of formula impeller is recessed with the feed opening for constituting feed inlet, to the major diameter at the hole wall of feed opening Through centrifugation liquid flow hole road is disposed at the outer wall of section, the centrifugation liquid flow hole road is three groups or more and around self-priming impeller shaft Line and circumferential vortex shape is uniformly distributed, to form the closed centrifugal wheel construction of self-priming impeller.

Preferably, pilot hole is recessed at the reduced diameter section outer wall of the self-priming impeller, the stirring tooth includes can diameter To the fixed link being fixed in pilot hole and the zirconia ceramics set that is arranged and is fixed in fixed link；With circumferential cloth-like ring Two or more the stirring teeth enclosed around reduced diameter section one are one group of mixing component, and each group mixing component is axial sequentially along reduced diameter section Setting.

Preferably, the pump case includes connection frame, the machine being sequentially coaxially disposed along the output shaft extending direction of power motor Tool seal box, grinding case and end cap, the outlet of feed pipe is coaxially through at end cap, end where the enlarged diameter section of self-priming impeller Then smooth surface shape is matched in end cap respective face, and mechanical sealing assembly and the bearing block are then respectively positioned in mechanical seal case；Institute State between grinding case and end cap and between grinding case and mechanical seal case each other face against and the abutment face of each vertical turn Axis axis；This sand mill further includes ring buckle, and the ring buckle includes the left semi-ring and right semi-ring of setting mutually hinged, the left side The articulated shaft axis parallel shaft axis of semi-ring and right semi-ring；At the abutment face being fitted to each other setting can each other face paste close turn up Side, left semi-ring and the then recessed arc groove being adapted to the edge profile that turns up at the inner ring surface of right semi-ring, left semi-ring and right semi-ring are each other Close up to flanging described in obvolvent, and arrangement can fix mutual lock at the cantilever end of left semi-ring and right semi-ring, to realize To the locking purpose of the abutment face between grinding case and end cap and between grinding case and mechanical seal case.

Preferably, it is arranged between the grinding case and end cap and at the abutment face between grinding case and mechanical seal case The sealing ring of sealing function.

Preferably, the grinding case includes the outer sleeve that inner sleeve and coaxial sleeve are set to outside inner sleeve, inner sleeve and outer It is connected to each other between sleeve by radial plate；The barrel chamber of inner sleeve constitutes the accommodating chamber for accommodating self-priming impeller, inner sleeve Interlayer cavity between outer sleeve then constitutes the heat dissipation cavity for injecting coolant liquid；It extends radially through and is provided with for connecting on outer sleeve The cold source hole of logical heat dissipation cavity and cleaning eye.

Preferably, coaxially to each other, and cold source hole is located at cleaning eye surface for cleaning eye and cold source hole.

Preferably, affixed each other by shaft coupling between the output shaft and shaft of the power motor, shaft coupling is located at Connection frame is formed by cavity.

The utility model has the beneficial effects that:

1), through the above scheme, the utility model has abandoned traditional outer belt on the basis of existing grinding machine structure Material pump, then self-priming impeller has been used in the feed side of shaft.Since the charging of self-priming impeller is directed toward in the outlet of feed pipe Mouthful, when being fed every time by feed pipe, self-priming impeller rotates to generate negative-pressure sucking under the drive of power motor, in turn The material at feed pipe can be endlessly drawn, and the material is drained into pump case pump chamber by the discharge port of self-priming impeller It is interior.It can be generated each under the collective effect of the abrasive media of stirring tooth and high fill-ratio at shaft into the material in pump chamber The power in direction and irregular movement, the particle in material are generated strong collision, rubbing action each other by abrasive media, reach To the effect for accelerating levigate particle and disperse agglomerations.Even when needed, also sieve can be arranged where the discharge nozzle in pump case Net is to assist separation of material and abrasive media.Material is constantly from batch can to feed pipe again to pump case pump chamber, and recirculation flow is extremely Discharge nozzle, the final purpose realizing that particle becomes smaller, particle size range narrows and refining.It is low in the automatable realization of the utility model The efficient fine of the material of viscosity grinds purpose, is particularly suitable for the micron order even high efficiency dispersion of nanometer materials and grinding behaviour Make.

2), as the further preferred scheme of the utility model, the self-priming impeller selects shrouded centrifugal impellor, so as to The mixing demand of the fluid foods of low viscosity in more adapting to.One end of self-priming impeller is directly arranged in as installation end It is on transmission shaft and fixed thereto, such as key connection or pin shaft connection to each other, to realize same rotating function.And for self-priming impeller Enlarged diameter section then form normal double shrouded wheel construction, to realize the negative pressure absorbing and discharge purpose of liquid stream.

3), in fact, a large amount of wear conditions of stirring tooth, principal element are that the material of stirring tooth does not support grinding at present The material of medium, to occur a large amount of stirring tooth damage problems under the collision and friction of abrasive media.The utility model is independent The dismountable fixed link being arranged, the zirconia ceramics set being sheathed in fixed link of arranging in pairs or groups are protected on the one hand with its split type structure Convenience when maintenance disassembly and replacement is hindered；On the other hand, zirconia ceramics set is as the contact for directly contacting abrasive media Body, material is consistent with the material of zirconium pearl as abrasive media, can effectively reduce the wear rate and spoilage of stirring tooth.

4), when carrying out periodically maintenance replacement operation, disassembly and attended operation to sand mill, which all concentrate on, is ground At case, and connection frame and mechanical seal case are then not necessarily to execute the operation such as cleaning.In view of this, the utility model will be with grinding The respective face of end cap and mechanical seal case that case is directly connected to is designed as flanging construction, and corresponding on the abutment face of grinding case Flanging is set, then relies on the convenient padlock effect of ring buckle, the fast assembling-disassembling purpose of finalization realized to grinding case, Operation threshold can be significantly reduced.And it is still straight between connection frame and mechanical seal case or even between connection frame and power motor Connecting bolt is fixed or solid welding, dismantles above-mentioned position unintentionally to avoid operator and asking for the meaningless increase of installation workload occurs Topic.

5), work department of the grinding case as the utility model, under the vigorous motion of abrasive media, material and stirring tooth, It necessarily will appear high fever working condition.Therefore, the utility model is provided with the concentric ring arrangement of inside and outside sleeve, and is come with radial plate Radial direction is affixed each other.In use, the barrel chamber of inner sleeve constitutes the accommodating chamber for accommodating self-priming impeller, inner sleeve and outer sleeve Between interlayer cavity then constitute the heat dissipation cavity for injecting coolant liquid, to realize its work and the purpose neglected neither of heat dissipation.

6), the purpose in cold source hole is to connect external cold source, and cleaning eye is then the energy in clean and maintenance the utility model Play the purpose of heat eliminating medium and Rapid Cleaning heat dissipation cavity in fast evacuation heat dissipation cavity.Cleaning eye and cold source hole coaxially to each other, And cold source hole is located at that place namely cleaning eye right above cleaning eye are located at grinding case bottom and cold source hole is located at that grind case most upper Side, in order to actually use.Shaft is separately fabricated from one with power motor when use, and the later period is by shaft coupling come affixed power electric The output shaft and shaft of machine.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the utility model after one of ring buckle of removal；

Fig. 2 is the schematic cross-sectional view of Fig. 1；

Fig. 3 is the part the I partial enlarged view of Fig. 2；

Fig. 4 is the working condition perspective view of ring buckle；

Fig. 5 is the schematic perspective view of self-priming impeller.

The practical corresponding relationship of each label of the utility model and component names is as follows:

A- flanging b- circulation line

10- pedestal 20- power motor

30- shaft 31- stirring tooth 31a- fixed link 31b- zirconia ceramics set

The self-priming impeller 32a- feed opening 32b- of 32- is centrifuged liquid flow hole road 32c- pilot hole

40- batch can 41- feed pipe 50- bearing block 60- connection frame 70- mechanical seal case

80- grinds case 81- inner sleeve 82- outer sleeve 82a- cold source hole 82b- cleaning eye

90- end cap 100- ring buckle

The right semi-ring 103- articulated shaft 104- lock of the left semi-ring 102- of 101-

Specific embodiment

For ease of understanding, here in connection with Fig. 1-5, specific structure and working method to the utility model are made further below Description:

The specific structure of the utility model is as shown in Figure 1-3, include the power motor 20 sequentially arranged from right to left, connection Frame 60, mechanical seal case 70, grinding case 80 and end cap 90, it is affixed coaxially to each other between each.Power motor 20 is horizontal to be placed in On pedestal 10.The output shaft of power motor 20 stretches out to the left, and is coaxially fixed in shaft 30 by shaft coupling.Shaft 30 Then realize that its cantilevered disposes purpose by the bearing block 50 being arranged in mechanical seal case 70.The left end of shaft 30 constitutes outstanding Arm end coaxially wears self-priming impeller 32 as shown in Figure 5 at cantilever end.As shown in Figs. 1-2, the left end of self-priming impeller 32 Smooth surface cooperates each other between end and 90 right side of end cap where face namely enlarged diameter section, to ensure self-priming impeller 32 as far as possible Under the premise of revolute function, guarantee the minimum in gap between self-priming impeller 32 and end cap 90, to avoid breaking in grinding chamber Damage zirconium grain penetrates into above-mentioned gap and the wear condition of above-mentioned smooth surface occurs.Coaxially run through arrangement feed pipe 41 at end cap 90, into The import of expects pipe 41 connects batch can 40, and exports and be then directed toward at the feed inlet of self-priming impeller 32, to realize negative-pressure suction purpose. Discharge nozzle is also set up at grinding case 80, to realize to the export purpose that the material finished is ground and mixed in grinding chamber.Certainly, such as Conventional sand mill is the same, and the utility model is still additionally provided with circulation line b in Fig. 1-2, to will be close to discharge nozzle entrance Mixed material can send batch can 40 back to again by circulation line b, with realize repeatedly circulation sand milling function.

It is as shown in Figure 4, on the basis of above structure, end cap 90 that the utility model will be directly connected to grinding case 80 It is designed as flanging a construction with the respective face of mechanical seal case 70, and is correspondingly arranged flanging on the abutment face of grinding case 80 A, then the convenient padlock effect of ring buckle 100 is relied on, the fast assembling-disassembling purpose of finalization realized to grinding case 80, operation Threshold can be significantly reduced.When actual needs maintenance disassembly the utility model, lock 104 only need to be dismantled, and make left semi-ring 101 generate hinged open movement along articulated shaft 103 with right semi-ring 102.And when needing to ressemble above structure, otherwise operation, Also case 80 will be ground with after the coaxial pairing of corresponding abutment face of corresponding end cap 90 and mechanical seal case 70, close ring buckle again 100 and ensure to latch 104 it is sealed finish, operation is extremely easy.And between connection frame 60 and mechanical seal case 70 or even Still direct bolt is fixed or solid welding between connection frame 60 and power motor 20, dismantles above-mentioned portion unintentionally to avoid operator Position and occur can not installation question.

For self-priming impeller 32, referring to Figure 5, preferred shrouded centrifugal impellor, so as to low viscosity in more adapting to The mixing demand of fluid foods.End is directly arranged in transmission as installation end where the reduced diameter section of self-priming impeller 32 It is on axis and fixed thereto, such as key connection or pin shaft connection to each other, to realize same rotating function.And for self-priming impeller 32 Enlarged diameter section then forms normal double shrouded wheel construction, to realize the negative pressure absorbing and discharge purpose of liquid stream.

The utility model in actual work, 20 drive shaft 30 of power motor and high speed rotation, and then drive self-priming leaf It takes turns 32 high speed rotations and forms negative pressure state in dismembyator.It is acted on, can be placed on by the negative pressure self-priming of self-priming impeller 32 Fluid foods in the batch can 40 of top are sucked into grinding chamber.The abrasive media of high fill-ratio is by stirring tooth 31 in grinding chamber Rotation, which drives, to be generated and the power of all directions and irregular movement, and the particle in material is then generated by abrasive media by force each other Strong collision, rubbing action is to achieve the effect that accelerate levigate particle and disperse agglomerations.Material constantly from batch can 40 into Expects pipe 41 arrives grinding chamber again and arrives discharge nozzle again and circulate, the final mesh realizing that particle becomes smaller, particle size range narrows and refining 's.

In summary, the utility model may make the material of middle low viscosity efficient fine gtinding purpose in a short time, It is particularly suitable for the micron order even high efficiency dispersion and grinding operation of nanometer materials.

Claims (8)

1. a kind of horizontal superfine sand mill of use for laboratory, being lying on pedestal (10) including pedestal (10) and axis horizontal shape Power motor (20)；Side where the output shaft of power motor (20) is arranged pump case, shaft (30) it is rotatable be arranged in pump case In pump chamber, shaft (30) and the output shaft of power motor (20) are coaxial and affixed to transmit power each other between the two, are located at pump Extend radially outwardly the stirring tooth (31) having for abrasive media in stirring pump case pump chamber at shaft (30) axle body in shell pump chamber； This sand mill further includes for the feed pipe (41) fed in pump case pump chamber and for drawing going out for material in pump case pump chamber Expects pipe；It is characterized by: cantilevered construction of the shaft (30) for single-ended setting bearing block (50), and the bearing block of shaft (30) (50) end where is located at power motor (20) direction, the cantilever end of shaft (30) then coaxial affixed self-priming impeller (32)； Feed pipe (41) is through pump case and is connected to pump case pump chamber, and the charging of self-priming impeller (32) is directed toward in the outlet of feed pipe (41) Mouthful.

2. the horizontal superfine sand mill of a kind of use for laboratory according to claim 1, it is characterised in that: the self-priming impeller It (32) is two-period form ladder shaft-like；Endface axial direction indent arranges mounting hole where the reduced diameter section of self-priming impeller (32), from And self-priming impeller (32) can be coaxially arranged and be keyed at the cantilever end of shaft (30)；Self-priming impeller (32) it is big Endface where diameter segment is recessed with the feed opening (32a) for constituting feed inlet, to the major diameter at the hole wall of feed opening (32a) Section outer wall at through be disposed with centrifugation liquid flow hole road (32b), the centrifugation liquid flow hole road (32b) be three groups or more and around certainly Suction impeller (32) axis and circumferential vortex shape is uniformly distributed, to form the closed centrifugal wheel construction of self-priming impeller (32).

3. the horizontal superfine sand mill of a kind of use for laboratory according to claim 2, it is characterised in that: the self-priming impeller (32) it is recessed at reduced diameter section outer wall pilot hole (32c), the stirring tooth (31) includes can be radially fixed in pilot hole Fixed link (31a) in (32c) and the zirconia ceramics set (31b) for being arranged and being fixed on fixed link (31a)；With circumferential equal Cloth-like is one group of mixing component around two or more the stirring teeth (31) that reduced diameter section one encloses, and each group mixing component is along minor diameter Section is axial to be set in sequence.

4. the horizontal superfine sand mill of a kind of use for laboratory according to claim 2 or 3, it is characterised in that: the pump case packet Include connection frame (60), the mechanical seal case (70), grinding being sequentially coaxially disposed along the output shaft extending direction of power motor (20) Case (80) and end cap (90), the outlet of feed pipe (41) is coaxially through at end cap (90), the major diameter of self-priming impeller (32) Then smooth surface shape is matched in end cap (90) respective face at end where section, and mechanical sealing assembly and the bearing block (50) are then respectively positioned on In mechanical seal case (70)；Between the grinding case (80) and end cap (90) and grinding case (80) and mechanical seal case (70) it Between each other face against and each the equal vertical rotation axis of abutment face (30) axis；This sand mill further includes ring buckle (100), the ring Shape button (100) includes left semi-ring (101) and right semi-ring (102) of setting mutually hinged, the left semi-ring (101) and right semi-ring (102) articulated shaft (103) axis parallel shaft (30) axis；At the abutment face being fitted to each other setting can each other face paste close it is outer Flange (a), left semi-ring (101) and the then recessed arc groove being adapted to flanging (a) profile at the inner ring surface of right semi-ring (102), Left semi-ring (101) and right semi-ring (102) are closed up each other to flanging described in obvolvent

(a), and at left semi-ring (101) and the cantilever end of right semi-ring (102) arrangement can fix mutual lock (104), to realize To the locking mesh of the abutment face between grinding case (80) and end cap (90) and between grinding case (80) and mechanical seal case (70) 's.

5. the horizontal superfine sand mill of a kind of use for laboratory according to claim 4, it is characterised in that: the grinding case (80) Arrangement seals close at abutment face between end cap (90) and between grinding case (80) and mechanical seal case (70) Seal.

6. the horizontal superfine sand mill of a kind of use for laboratory according to claim 4, it is characterised in that: the grinding case (80) It is set to the outer sleeve (82) of inner sleeve (81) outside including inner sleeve (81) and coaxial sleeve, between inner sleeve (81) and outer sleeve (82) It is connected to each other by radial plate；The barrel chamber of inner sleeve (81) constitutes the accommodating chamber for accommodating self-priming impeller (32), inner sleeve Interlayer cavity between cylinder (81) and outer sleeve (82) then constitutes the heat dissipation cavity for injecting coolant liquid；Outer sleeve radially passes through on (82) Wear cold source hole (82a) and the cleaning eye (82b) being equipped with for being connected to heat dissipation cavity.

7. the horizontal superfine sand mill of a kind of use for laboratory according to claim 6, it is characterised in that: cleaning eye (82b) with Cold source hole (82a) coaxially to each other, and at cold source hole (82a) be located at right above cleaning eye (82b).

8. the horizontal superfine sand mill of a kind of use for laboratory according to claim 4, it is characterised in that: the power motor (20) affixed each other by shaft coupling between output shaft and shaft (30), shaft coupling is located at connection frame (60) and is formed by sky It is intracavitary.