The syndeton of rod mill inside drum liner and urceolus
Technical field
The utility model relates to the syndeton of a kind of rod mill inside drum liner and urceolus, belongs to the rod mill technical field.
Background technology
Rod mill is that rod iron is gained the name by the abrasive body that loads in cylindrical shell, and rod mill is generally to adopt the wet type overflow type, can be used as the one-level open-circuit grinding and uses, and extensively is used in the one-level ore grinding of artificial stone sand, ore dressing plant, chemical plant power department.
Rod mill drives the cylindrical shell revolution by motor via reducer and peripheral gear wheel deceleration transmission.Suitable milling medium-rod iron is housed in cylindrical shell, and milling medium is thus lifted to certain altitude under the effect of centrifugal force and frictional force, is to leave or let out state and fall.By the material that ground by feed port continuous enter inner barrel, the milling medium of passive movement is pulverized, and by overflow with to the strength in ore deposit, product is discharged outside machine continuously, to carry out next section procedures.
The inside drum liner of existing rod mill is fastening at outer wall by the bolt that passes urceolus, its fastening nut and mat are as shown in Figure 2, being provided with the disc rubber blanket in the middle of fastening nut and grinding machine outer wall seals, nut does not directly contact with the grinding machine outer wall, owing to being subjected to the repeated stock of rod iron and coal larger in the rod mill running, move several days and will become flexible spillage, the coal slurry driven wheel that bleeds causes the working gear environment abominable, cause several times gear tooth breakage, have a strong impact on production; Coal slurry bleeds the grinding machine mounting groove can be cumulative, and its amount can only regularly be shut down cleaning after reaching certain value, not only wastes time and energy but also can not guarantee to produce stable; Spillage also causes production cost to rise simultaneously.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of good airproof performance, rod mill inside drum liner simple in structure and the syndeton of urceolus are provided, can overcome the deficiencies in the prior art.
The technical solution of the utility model is: the syndeton of rod mill inside drum liner and urceolus, it comprises screw rod and the urceolus that connects inner core, screw rod is connected with bolt after passing urceolus, be provided with sealing gasket and seal gasket press cover between urceolus and bolt, being provided with on seal gasket press cover can be with sealing gasket button groove within it.
Sealing gasket be shaped as taper, be provided with the conical socket that matches in seal gasket press cover.
Sealing gasket be shaped as hemispherical, be provided with the hemispherical groove that matches in seal gasket press cover.
For solving through leaking the material problem, the applicant has carried out serious analysis to existing structure, thinks that its main cause is:
A, nut be sub and outer wall flexible contact by cushion, and after being subjected to alternately to vibrate, center of the mat hole expansion causes grinding machine not cause leakage by effective sealing.
B, nut be by cushion and outer wall flexible contact, is subjected to after alternately vibration sealing surface wear between mat and barrel, mat and nut and causes leakage.
C, nut are subjected to alternately to vibrate rear nut loosening by cushion and outer wall flexible contact, though 2 layers of back of the body cap still can not solve the loosening problem of nut, thereby cause leakage.
After finding reason; the applicant has done transformation with version and the mounting means of sealing gasket; structure as shown in Figure 1; being provided with on seal gasket press cover can be with sealing gasket button groove within it; make the contact of seal gasket press cover rod mill outer wall rigidity by clamping nut during installation, groove is strictly fixing with rubber gasket, has not only guaranteed sealing property but also protect not wear out failure in the grinding machine running of sealing gasket thus; sealing effectiveness is fine after practical application, has overcome existing defective.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is existing sealed structural representation.
The specific embodiment
Embodiment 1: as shown in Fig. 1, the syndeton of rod mill inside drum liner and urceolus uses bolt to be fixed, it is to pass the rear connecting bolt 3 of urceolus 2 and be fixed being connected to screw rod 1 on inside drum liner, for preventing from the bolt hole leakage, be provided with sealing gasket 4 and seal gasket press cover 5 between urceolus 2 and bolt 3, being provided with on seal gasket press cover 5 can be with sealing gasket 4 buttons groove within it, in Fig. 1, the shape of sealing gasket 4 adopts taper, is provided with the conical socket that matches in seal gasket press cover 5.Conical socket links closely the sealing gasket 4 of taper in it, the end face of the 3 rear seal gasket press cover 5 that tight a bolt and urceolus 2 close contacts.
Embodiment 2: the syndeton of rod mill inside drum liner and urceolus uses bolt to be fixed, it is to pass and be connected with bolt 3 after urceolus 2 and be fixed being connected to screw rod 1 on inside drum liner, for preventing from the bolt hole leakage, be provided with sealing gasket 4 and seal gasket press cover 5 between urceolus 2 and bolt 3, being provided with on seal gasket press cover 5 can be with sealing gasket 4 buttons groove within it, the shape of sealing gasket 4 adopts hemispherical, is provided with the hemispherical groove that matches in seal gasket press cover 5.Hemispherical groove links closely hemispheric sealing gasket 4 in it, the end face of the 3 rear seal gasket press cover 5 that tight a bolt and urceolus 2 close contacts.