Ring die pelleter
Technical field
The present invention relates to a kind of feed manufacturing machine, particularly a kind ofly can be squeezed into granular ring die pelleter to granular material through three pressure rollers and ring mould.
Background technology
Ring die pelleter comprises frame, ring mould, rotor, pressure roller assembly, main shaft and input and output material parts.The pressure roller assembly comprises three pressure roller back shafts, header board and back plate; Three pressure roller back shaft distributions triangular in shape, the two ends of every pressure roller back shaft are supported on respectively on header board and the back plate, and pressure roller assembly integral body is arranged in the ring mould; Constitute compression chamber between the excircle of three pressure rollers on three pressure roller back shafts and the ring mould inwall; Perfect condition is that the zero clearance is tangent between excircle and the ring mould inwall of three pressure roller back shafts, and three point of contacts are concyclic, and its center of circle is concentric with main shaft.The pressure roller assembly is separately fixed at an end of main shaft through three pressure roller back shafts, and the other end of main shaft is fixedly connected on the frame through safety pin and safety pin terminal pad.Rotor is a hollow shaft, and main shaft is a solid shafting, and rotor is sleeved on outside the main shaft and through two groups of main shaft bearings in the middle part of its inner chamber and is supported on the main shaft, and the ring mould is installed in an end of rotor, and the other end of rotor is provided with the rotor dynamic wheel.
In the work, granular material is got in the compression chamber that ring mould and pressure roller assembly form by charging aperture, and rotor dynamic is taken turns the drive rotor rotation; And then driving the rotation of ring mould, the pressure roller assembly is fixed on the main shaft and does not change, through the rotation of ring mould; Material receives the extruding of relative motion between ring mould and the pressure roller, passes the nib moulding on the ring mould, by cutting knife material is cut into particle again; Material particles is discharged by discharging opening at last, accomplishes whole pelletization.
There is following shortcoming in present ring die pelleter:
1, power is located on the hollow rotor; And integrated support fixedly is located on the solid main shaft; Because ring mould and rotor need rotation; Make two groups of main shaft bearings of support rotor be positioned at an end of main shaft, cause ring mould, rotor, pressure roller assembly, main shaft integral body to be in the single-cantilever state, hron spacing is long and load is big.And between pressure roller assembly and the main shaft for being rigidly connected; Encircle between mould and the rotor also for being rigidly connected; Promptly two groups of rigid elements all are the single-cantilever state, under and the situation that load is big long in hron spacing, cause the ring die pelleter vibrations easily; Ring mould connecting bolt is prone to loosening, easily broken, and the main shaft bearing between main shaft and the rotor also damages easily.
2, the structure of present pressure roller assembly, the irregular adjustment respectively of the off-centre of three pressure rollers causes the excircle of three pressure rollers and the gap between the ring mould inner periphery not to wait.On the one hand, the circumscribed center of circle of three pressure rollers and main shaft decentraction, dynamic balancing not good general causes vibrations; On the other hand, when adding the granulator running, feed can not be fully evenly; Three suffered radial loads in pairing three blanketed zones of pressure roller do not wait; The ring mould also receives uneven impulsive force, and two groups of rigid unitary can not be adjusted above inhomogeneous impulsive force under the constraint of two main shaft bearings; This also is to cause the ring die pelleter vibrations, and then causes the root of superstructure loosening, damage.
Summary of the invention
For overcoming the problem that exists in the prior art, the invention provides a kind of ring die pelleter, can alleviate the contilever load of main shaft, make and realize between pressure roller assembly and the main shaft flexibly connecting.
For solving above technical problem; A kind of ring die pelleter provided by the present invention comprises ring mould, pressure roller assembly and main shaft, and said pressure roller assembly integral body is arranged in said ring mould; Said pressure roller assembly comprises three pressure roller back shafts, header board and back plate; Three pressure roller back shaft distributions triangular in shape, the two ends of every pressure roller back shaft are supported on respectively on said header board and the back plate, and the pressure roller locking nut is locked each pressure roller back shaft outside header board; There is one to be the pressure roller eccentric shaft in said three pressure roller back shafts; The front end face outside of said header board is provided with the eccentric shaft adjusting device that is connected with said pressure roller eccentric shaft, and the rear end face of plate is provided with at least one connecting pin behind the said pressure roller assembly, and said main shaft and said pressure roller assembly axle head in opposite directions are equipped with terminal pad; Said terminal pad is provided with and the suitable cotter way of said connecting pin, and said connecting pin is connected in the corresponding cotter way of said terminal pad.
With respect to prior art, the present invention has obtained following beneficial effect: the cotter way of terminal pad is connected with connecting pin; The main shaft of a ring die pelleter support rotor assembly and the transfer of constraint pressure roller assembly, rotor assembly be only to ring mould outputting power, and directly do not bear its weight, alleviated the contilever load of main shaft; After the pressure roller eccentric shaft was adjusted to the right place, three pressure rollers of pressure roller assembly were all tangent with ring mould inwall, and three circumscribed centers of circle of pressure roller are concentric with main shaft, guaranteed dynamic balancing; Three the pairing ring mould of pressure roller blanketed zones produce and do not wait also adjustment automatically mutually of radial load in the pressure roller assembly, and feasible ring mould is stressed evenly to reduce the vibrations of ring die pelleter, reduces loosening, the damage of parts such as bearing, also greatly reduces power consumption.
As preferred version of the present invention, the connecting pin behind the said pressure roller assembly on the plate is evenly distributed with a plurality of.Connecting pin is evenly distributed with and a plurality ofly can makes the moment transmission of terminal pad more even, also is convenient to connecting pin and is connected steadily with the cotter way of terminal pad.
As preferred version of the present invention, the connecting pin behind the said pressure roller assembly on the plate is provided with three, and is corresponding with the position of said three pressure roller back shafts respectively.
As improvement of the present invention; The end of said connecting pin is provided with the pin cap; Being spaced a distance with said pin cap is provided with protruding circle, and the cotter way on the said terminal pad is the arc elongated slot that extends along same circumference, and said arc elongated slot comprises large aperture end and the small-bore end that is interconnected; At the above small-bore end of direction of rotation of said ring mould preceding; Said large aperture end after, the diameter of said large aperture end and the external diameter of said pin cap and protruding circle are suitable, the diameter of said small-bore end and the external diameter of said connecting pin body are suitable; With its clamping, the distance between said pin cap and the protruding circle is suitable with the thickness of the said terminal pad at clamping place from the two ends of said terminal pad for the said pin cap of said connecting pin and protruding circle.The large aperture end of the arc elongated slot of terminal pad is aimed at the connecting pin on the back plate of pressure roller assembly; Push terminal pad; Then along the ring mould direction of rotation dish that is rotatably connected; Make each connecting pin snap onto the small-bore end of each arc elongated slot because ring die pelleter be folk prescription to rotation, terminal pad and connecting pin can not thrown off; The pin cap of connecting pin and protruding circle grasp terminal pad from the both ends of the surface outside, the transfer of constraint pressure roller assembly, and the axial micro-play of compensation pressure roller assembly.
As further improvement of the present invention; Said arc elongated slot is the staggered floor cotter way; Said staggered floor cotter way is wide deep-slotted chip breaker on the sidewall of both ends of the surface; To the end transition of said small-bore, the said pin cap of said connecting pin and said protruding circle are clamped in the end both sides, said small-bore of terminal pad by said large aperture end at the middle part of the wide deep-slotted chip breaker clamping of two side, and said pin cap and protruding circle lay respectively in the said wide deep-slotted chip breaker of terminal pad both ends of the surface.The large aperture end of the arc elongated slot of terminal pad is aimed at the connecting pin on the back plate of pressure roller assembly; Push terminal pad; Then along the ring mould direction of rotation dish that is rotatably connected; Make each connecting pin snap onto the small-bore end of each arc elongated slot, the pin cap of connecting pin and protruding circle not only grasp the small-bore end at staggered floor cotter way middle part from the both ends of the surface outside, and hidden respectively in the arc elongated slot of terminal pad both ends of the surface.
As another improvement of the present invention; Said eccentric shaft adjusting device comprises eccentric adjustment arm, eccentric adjusting screw rod, adjusting screw(rod) fulcrum and adjusting screw(rod) locking nut; Said eccentric adjusting screw rod is supported on the said header board through said adjusting screw(rod) fulcrum; One end of said eccentric adjustment arm is connected with the axle head of said pressure roller eccentric shaft; The other end of said eccentric adjustment arm and an end of said eccentric adjusting screw rod are hinged, and two said adjusting screw(rod) locking nuts are locked at the both sides of said adjusting screw(rod) fulcrum respectively.The length of adjustment eccentric adjusting screw rod, eccentric adjusting screw rod affect eccentric adjustment arm, make the rotation of pressure roller eccentric shaft then.When the excircle of pressure roller eccentric shaft and ring mould inwall are tangent, with the adjusting screw(rod) locking nut screwing in adjusting screw(rod) fulcrum both sides, thereby accomplish the adjustment of pressure roller eccentric shaft.
As further improvement of the present invention, an end of said eccentric adjustment arm is provided with plum blossom hole, and said plum blossom hole is socketed on the said pressure roller locking nut of pressure roller eccentric shaft, and the shape size of said plum blossom hole and said pressure roller locking nut is suitable.The plum blossom hole of eccentric adjustment arm has 12 adjustable angle, can solve the not enough problem of eccentric adjustment arm adjustment angular travel.
Description of drawings
Fig. 1 is the front view of ring die pelleter pressure roller assembly of the present invention.
Fig. 2 is the be connected sketch map of pressure roller assembly in the ring die pelleter of the present invention with terminal pad.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the end view of the terminal pad of ring die pelleter of the present invention.
Fig. 5 is the left view of Fig. 2.
Fig. 6 is the cutaway view of the pressure roller eccentric shaft of pressure roller assembly among the present invention.
Fig. 7 is the end view of pressure roller eccentric shaft among the present invention.
Fig. 8 is the end view of eccentric adjustment arm among the present invention.
Fig. 9 is the assembling sketch map of pressure roller eccentric shaft among the present invention with eccentric adjustment arm.
Among the figure: 1 ring mould; 2 pressure roller assemblies; 201 pressure roller back shafts; 202 pressure roller eccentric shafts; The eccentric adjustment of 202a arm; 202b eccentric adjusting screw rod; 202c adjusting screw(rod) locking nut; 202d adjusting screw(rod) fulcrum; 203 header boards; 204 back plates; 205 pressure roller locking nuts; 3 main shafts; 4 terminal pads; 4a staggered floor cotter way; 5 connecting pins; The protruding circle of 5a; 5b sells cap; Position after the A connecting pin screws in; A ' connecting pin pushes initial position; Position before the adjustment of B ' pressure roller; The adjusted position of B pressure roller.
The specific embodiment
Like Fig. 1, Fig. 2 and shown in Figure 6; Ring die pelleter of the present invention comprises ring mould 1, pressure roller assembly 2 and main shaft 3; Pressure roller assembly 2 integral body are arranged in ring mould 1, and pressure roller assembly 2 comprises two pressure roller back shafts 201, a pressure roller eccentric shaft 202, header board 203 and back plate 204; Three pressure roller distributions triangular in shape; The two ends of pressure roller back shaft 201 and pressure roller eccentric shaft 202 are supported on respectively on header board 203 and the back plate 204, and pressure roller locking nut 205 is fixed three pressure rollers outside header board 203, have one to be pressure roller eccentric shaft 202 in three pressure roller back shafts; The front end face outside of header board 203 is provided with the eccentric shaft adjusting device that is connected with pressure roller eccentric shaft 202, is evenly distributed with connecting pin 5 on the rear end face of the back plate 204 of pressure roller assembly 2.Connecting pin 5 is preferably three, and is corresponding with the position of three pressure roller back shafts respectively.Main shaft 3 is equipped with terminal pad 4 with pressure roller assembly 2 axle head in opposite directions, and terminal pad 4 is provided with respectively the cotter way suitable with connecting pin 5, and connecting pin 5 is connected to respectively in the terminal pad 4 corresponding cotter ways.The end of connecting pin 5 is provided with pin cap 5b, and being spaced a distance with pin cap 5b is provided with protruding circle 5a, the thick spill in thin two ends in the middle of constituting between the body of pin cap 5b, protruding circle 5a and connecting pin 5.
Like Fig. 3 and shown in Figure 4; Cotter way on the terminal pad 4 is the arc elongated slot that extends along same circumference; The arc elongated slot comprises large aperture end and the small-bore end that is interconnected, the ring mould 1 direction of rotation on the small-bore end preceding, the large aperture end after; The external diameter of the diameter of large aperture end and pin cap 5b and protruding circle 5a is suitable; The external diameter of the diameter of small-bore end and connecting pin 5 is suitable, and with its clamping, pin cap 5b is suitable with the thickness of the terminal pad 4 at clamping place with protruding distance of enclosing between the 5a from the two ends of terminal pad 4 for the pin cap 5b of connecting pin 5 and protruding circle 5a.
Like Fig. 4 and shown in Figure 6; The arc elongated slot is preferably staggered floor cotter way 4a; Be wide deep-slotted chip breaker on the sidewall of terminal pad 4 both ends of the surface, the wide deep-slotted chip breaker of two side is respectively in order to placing pin cap 5b and protruding circle 5a, the middle part of the wide deep-slotted chip breaker clamping of two side by the large aperture end to small-bore end transition; Distance between thickness and pin cap 5b, the protruding circle 5a is suitable; The body of connecting pin 5 is stuck in the small-bore end of staggered floor cotter way 4a, and the pin cap 5b of connecting pin 5 and protruding circle 5a are clamped in the end both sides, small-bore of staggered floor cotter way 4a, and pin cap 5b and protruding circle 5a lay respectively in the arc elongated slot of terminal pad 4 both ends of the surface.
Like Fig. 5, Fig. 7, Fig. 8 and shown in Figure 9; The eccentric shaft adjusting device comprises eccentric adjustment arm 202a, eccentric adjusting screw rod 202b, adjusting screw(rod) fulcrum 202d and adjusting screw(rod) locking nut 202c; Eccentric adjusting screw rod 202b is supported on the header board 203 through adjusting screw(rod) fulcrum 202d; The end of eccentric adjustment arm 202a is connected with the axle head of pressure roller eccentric shaft 202; The other end of eccentric adjustment arm 202a and the end of eccentric adjusting screw rod 202b are hinged, and two adjusting screw(rod) locking nut 202c are locked at the both sides of adjusting screw(rod) fulcrum 202d respectively.The end of eccentric adjustment arm 202a is provided with plum blossom hole, and plum blossom hole is socketed on the pressure roller locking nut 205 of pressure roller eccentric shaft 202, and the shape size of plum blossom hole and pressure roller locking nut 205 is suitable.
Install ring mould 1 earlier, pack pressure roller assembly 2 into and encircle in the mould 1, terminal pad 4 is installed again; The large aperture end of the staggered floor cotter way 4a of terminal pad 4 is aimed at the connecting pin 5 on the back plate 204 of pressure roller assembly 2; Be that connecting pin among Fig. 3 pushes initial position A ', push terminal pad 4, then along the ring mould 1 direction of rotation dish 4 that is rotatably connected; Make each connecting pin 5 snap onto the small-bore end of staggered floor cotter way 4a, the position A after promptly arriving connecting pin among Fig. 3 and screwing in.Terminal pad 4 has just been realized unsteady the connection with connecting pin 5 like this, and the pin cap 5b of connecting pin 5 and protruding circle 5a grasp the small-bore end of terminal pad 4, and constraint pressure roller assembly 2 makes it not transfer, and the axial micro-play of compensation pressure roller assembly 2.Because ring die pelleter be folk prescription to rotation, terminal pad 4 just and connecting pin 5 can not throw off.3 on main shaft is to pressure roller assembly 2 outputting powers, and directly do not bear its weight, alleviated the contilever load of main shaft 3.
Pressure roller assembly 2 is packed into behind the ring mould 1, and two pressure roller back shafts in below 201 nature is tangent with the inwalls of ring mould 1, pressure roller eccentric shaft 202 with ring mould inwall because the eccentric certain interval that exists, the preceding position B ' dotted portion as shown in Figure 5 of pressure roller adjustment.Unclamp adjusting screw(rod) locking nut 202c, the length of adjustment eccentric adjusting screw rod 202b, eccentric adjusting screw rod 202b affects eccentric adjustment arm 202a, makes 202 rotations of pressure roller eccentric shaft then.When the excircle of pressure roller eccentric shaft 202 also, is tightened in adjusting screw(rod) fulcrum 202d both sides with adjusting screw(rod) locking nut 202c, and pressure roller locking nut 205 is tightened when tangent with ring mould inwall, the adjusted position B of pressure roller as shown in Figure 5.
After pressure roller eccentric shaft 202 was adjusted to the right place, three pressure rollers of pressure roller assembly 2 were all tangent with the inwall of ring mould 1, and three circumscribed centers of circle of pressure roller are concentric with main shaft 3, guaranteed dynamic balancing; Three the pairing ring mould of pressure roller blanketed zones produce and do not wait also adjustment automatically mutually of radial load in the pressure roller assembly 2, and feasible ring mould is stressed evenly to reduce the vibrations of ring die pelleter, reduces loosening, the damage of parts such as bearing, also greatly reduces power consumption.
Except that the foregoing description, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.