Background technique
Stirrer is a kind of food instruments that food processing field is conventional.It utilizes the principle of physical agitation, allows meat front and back in pot body stir, mutually crumples, extrudes, reaches massage, pickled effect, meat is absorbed uniformly pickled, and then improve the power that is knotted of meat and the elasticity of product.In stirrer stirs and produces, after screw-conveyer-shaft in pot body rotates, for the consideration of food security and production safety, pot body requires comparatively strict to the sealability of screw-conveyer-shaft, bearing oil does not allow to enter a pot body, and the muddy flesh in pot body does not allow to spill yet.
At present, the bearing that the left and right two ends of the stirrer equipment auger axle sleeve used in traditional mode of production use is selfaligning roller bearing, the numerous and diverse difficulty of assembly process, and technical merit requires high.And adopt several layers of O RunddichtringO (being generally four layers) directly to seal in traditional stirrer between screw-conveyer-shaft and bearing, quick abrasion and wearing and tearing after cannot compensate, poor sealing performance, maintain and replace frequency is high, give produce and equipment repair bring very big inconvenience.
Also more research has been carried out to the sealing mechanism of screw-conveyer-shaft in stirrer in traditional mode of production, namely the such as Chinese invention patent application of publication number CN102794129A discloses one " stirrer sealing mechanism ", passes through " adopting the rubber graphite asbestos packing sealing means of two pass gland " to reaching good sealing effect in this patent application.But it only can enter in pot body lubricant oil and play certain sealing effect preferably, still there is powder and easily enter deficiency in bearing seal seat.Further, the seal arrangement in this application for a patent for invention is limited to the raw material restriction of its design field isolation, is not especially suitable in the abundant meat product stirrer of juice, meat foam.
To sum up, in food processing stirrer field, urgently a kind of good sealing effect, seal arrangement that turnover rate is low solve aforementioned various technical problem.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the invention provides the low rotating shaft sealing mechanism of a kind of good sealing effect, sealing mechanism long service life, replacement frequency and comprising the stirrer of this rotating shaft sealing mechanism.
In the present invention, in order to reduction language statement, introduce the orientation concept such as up and down, orientation concept herein is all as the criterion with the orientation such as up and down of the rotating shaft sealing mechanism of putting in corresponding Fig. 1 or Fig. 2 and stirrer.
In summary of the invention of the present invention while the necessary technology means solving aforementioned technical problem are provided, additionally provide several corresponding preferred technological means, to reach better technique effect.As without extra especially statement or adduction relationship, these several preferred technological means both can separately and necessary technology means of the present invention combine, total solution can also be combined into necessary technology means of the present invention again after combination in any each other.
Rotating shaft sealing mechanism of the present invention comprises the fixed base I that middle part is provided with the through hole passed for rotating shaft, is sequentially close to from left to right and is provided with V-seal pad I, lip seal pad I and packing_seal pad I between described fixed base I and rotating shaft.
Preferably, the material of V-seal pad I is silicone rubber, and the material of lip seal pad I and packing_seal pad I is teflon.
Preferably, described fixed base I extends to form protrusion step to direction, rotating shaft place, and described packing_seal pad I is close to and is arranged on the left of described protrusion step; The left side of described V-seal pad I is provided with the cover plate I holding out against described V-seal pad I; Described cover plate I is positioned at the left side of described fixed base I away from the outer circumferential side of rotating shaft, and is locked by lock bolt I with the left-hand end of described fixed base I.
Simultaneously, present invention also offers the stirrer with aforementioned rotating shaft sealing mechanism of the present invention with individual features, comprise a pot body, support the supporting frame of fixing described pot body, the screw-conveyer-shaft being positioned at described pot nside and the blade be installed on described screw-conveyer-shaft, the left and right sides wall of described pot body offers mutually corresponding left through hole and right through hole respectively, described left through hole and described right through hole are respectively equipped with usher to seat bearing with spherical outside surface and self oiling bearing, and the two ends of described screw-conveyer-shaft and described pot body are rotationally connected respectively by described bearing with spherical outside surface and the self oiling bearing of usheing to seat; Described usheing to seat between bearing with spherical outside surface and described screw-conveyer-shaft is provided with left sealing mechanism, and described left sealing mechanism is sequentially close to by V-seal pad, lip seal pad and packing_seal pad and is formed.
Preferably, the material of V-seal pad is silicone rubber, and the material of lip seal pad and packing_seal pad is teflon.
Preferably, described bearing with spherical outside surface of usheing to seat comprises the bearing support be fixedly connected with described pot body, described bearing support extends to form raised step to direction, screw-conveyer-shaft place, described left sealing mechanism is close to the left side being arranged on described raised step, the left side of described left sealing mechanism is provided with the cover plate holding out against described left sealing mechanism, described cover plate is positioned at the left side of described bearing support away from the outer circumferential side of rotating shaft, and is locked by lock bolt with the left-hand end of described bearing support.Preferred further, described lock bolt comprises screw rod and the nut with described screw rod adaptation, the left side wall of described bearing support is provided with the internal thread groove with described screw rod adaptation, and the position of the corresponding described internal thread groove of described cover plate is provided with the adaptive tapped through hole with described screw rod.
Preferably, described self oiling bearing comprises wear-resistant sleeve that is sheathed and that be fixedly connected with described screw-conveyer-shaft, the sheathed and nylon jacket be rotationally connected with described wear-resistant sleeve and by the dismountable fixed base be fixedly connected with of fixing bolt and described nylon jacket, and described fixed base is fixedly connected with described pot body.
Preferably, described screw-conveyer-shaft comprises drive shaft, rotating shaft and auger axle sleeve, described drive shaft and rotating shaft are each passed through described left through hole and described right through hole, described auger axle sleeve is positioned at described pot nside, and the two ends of described auger axle sleeve are fixedly connected with described drive shaft and rotating shaft are dismountable respectively.
Preferably, the two ends of described auger axle sleeve are fixedly connected with described drive shaft and rotating shaft are dismountable respectively by locating stud.
Preferably, described stirrer also comprises motor and driving mechanism, and the two ends of described driving mechanism are in transmission connection with the output shaft of described motor and described drive shaft respectively.
Preferably, described driving mechanism comprises the drive sprocket be fixed on described drive shaft and the gear be fixed on the output shaft of described motor, is in transmission connection between described drive sprocket and described gear by drive chain.
Preferably, the output shaft of motor is in transmission connection with driving mechanism by speed reducer again.
Preferably, the connection of pot body is provided with vacuum system.
Preferably, this stirrer is also provided with the PLC controlling described vacuum system and motor.
Based on aforementioned technological scheme of the present invention, the invention has the beneficial effects as follows:
One, adopts the sealing means of V-type, lip type and packing three linked piece, and carry out rotating shaft or screw-conveyer-shaft sealing, sealing effect is excellent.Meat liquid in lubricant oil and pot body can be completely cut off completely, ensure food security and production safety.Meanwhile, longer service life, without the need to frequently changing sealing gasket, uses manpower and material resources sparingly, and reduces cost of production.Meanwhile, sealing mechanism provided by the invention is simple for structure, is easy to installing/dismounting, and technical merit requires low, and usual skilled worker can carry out dismounting maintenance, easy to utilize.In concrete production, compare discovery, namely traditional stirrer production and application is deteriorated less than two months sealing effects, needs to change sealing gasket.And stirrer uses 2 years sealing effects still very excellent continuously in the present invention, without the need to disassembling, assembling and replacing sealing mechanism, extend greatly and reduce maintenance frequency working life.
They are two years old, at V-type, lip type and packing three linked piece part wears, when sealing effect reduces, three linked piece sealing mechanism is held out against to the right by gland (or gland I) and corresponding lock bolt (or lock bolt I), V-seal pad compresses lip-type seal pad again, the diastole of lip seal pad lip is again close to screw-conveyer-shaft (or rotating shaft) surface and is compressed packing sealing gasket, strengthens sealing effect, and then extends the working life of sealing mechanism further.
Its three, the self oiling bearing of the right-hand member of stirrer of the present invention, without the need to lubricating grease inject, also there is not food pollution, eliminate sealing hidden danger.The bearing with spherical outside surface of usheing to seat of the left end of stirrer of the present invention is preferably UC type, can play aligning effect simultaneously, to facilitate the accurate installation of the screw-conveyer-shaft of stirrer.
Its four, the locking mechanism provided of the present invention, simple for structure, be locked effective, and Use Adjustment is convenient.
They are five years old, the PLC of setting up in stirrer of the present invention and vacuum system, can by controlling the degree of vacuum of vacuum system and the rotating speed of motor, and then the upset situation of meat material in control stirrer, and then reach pulmonary respiration effect, make meat material in pot body, do the to-and-fro motion expanded and reduce, promote pickled effect further, improve Meat.Meanwhile, realize Automated condtrol, the stability of Improving The Quality of Products and the safe and simple property of production operation.
Embodiment 2: stirrer
As shown in figs. 2 to 4, the stirrer of the present embodiment comprises pot body 1, supports the supporting frame 2 of fixing described pot body 1, the screw-conveyer-shaft being positioned at described pot body 1 inside and the blade 8 be installed on described screw-conveyer-shaft, the left and right sides wall of described pot body 1 offers mutually corresponding left through hole and right through hole respectively, described left through hole and described right through hole are respectively equipped with usher to seat bearing with spherical outside surface and self oiling bearing, and the two ends of described screw-conveyer-shaft and described pot body 1 are rotationally connected respectively by described bearing with spherical outside surface and the self oiling bearing of usheing to seat; Described usheing to seat between bearing with spherical outside surface and described screw-conveyer-shaft is provided with left sealing mechanism 6, and described left sealing mechanism 6 is sequentially close to by V-seal pad 67, lip seal pad 66 and packing_seal pad 65 and is formed.The material of V-seal pad 67 is silicone rubber, and the material of lip seal pad 66 and packing_seal pad 65 is teflon.
In another preferred stirrer embodiment, described bearing with spherical outside surface of usheing to seat comprises the bearing support 61 be fixedly connected with described pot body 1, described bearing support 61 extends to form raised step to direction, screw-conveyer-shaft place, described left sealing mechanism 6 is close to the left side being arranged on described raised step, the left side of described left sealing mechanism 6 is provided with the cover plate 69 holding out against described left sealing mechanism 6, described cover plate 69 is positioned at the left side of described bearing support 61 away from the outer circumferential side of rotating shaft, and is locked by lock bolt 68 with the left-hand end of described bearing support 61.Described lock bolt 68 comprises screw rod and the nut with described screw rod adaptation, and the left side wall of described bearing support 61 is provided with the internal thread groove with described screw rod adaptation, and the position of the corresponding described internal thread groove of described cover plate 69 is provided with the adaptive tapped through hole with described screw rod.
In another preferred stirrer embodiment, described self oiling bearing comprises wear-resistant sleeve 91 that is sheathed and that be fixedly connected with described screw-conveyer-shaft, the sheathed and nylon jacket 92 be rotationally connected with described wear-resistant sleeve 91 and by the dismountable fixed base 93 be fixedly connected with of fixing bolt 94 and described nylon jacket 92, and described fixed base 93 is fixedly connected with described pot body 1.
In another preferred stirrer embodiment, described screw-conveyer-shaft comprises drive shaft 10, rotating shaft 11 and auger axle sleeve 63, described drive shaft 10 and rotating shaft 11 are each passed through described left through hole and described right through hole, it is inner that described auger axle sleeve 63 is positioned at described pot body 1, and the two ends of described auger axle sleeve 63 are fixedly connected with rotating shaft 11 is dismountable with described drive shaft 10 respectively.The two ends of described auger axle sleeve 63 are fixedly connected with rotating shaft 11 is dismountable with described drive shaft 10 respectively by locating stud 64.
In another preferred stirrer embodiment, described stirrer also comprises motor 3 and driving mechanism 4, and the two ends of described driving mechanism 4 are in transmission connection with the output shaft of described motor 3 and described drive shaft 10 respectively.Described driving mechanism 4 comprises the drive sprocket 5 be fixed on described drive shaft 10 and the gear be fixed on the output shaft of described motor 3, is in transmission connection between described drive sprocket 5 and described gear by drive chain.The output shaft of motor 3 is in transmission connection with driving mechanism 4 by speed reducer again.The connection of pot body 1 is provided with vacuum system, and this stirrer is also provided with the PLC controlling described vacuum system and motor 3.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but any change is done in its shape or structure; every have identical with the application or akin technological scheme, all drops within protection scope of the present invention.