CN200966987Y

CN200966987Y - Stirring apparatus with long lifetime shaft seal that can be changed together with the material

Info

Publication number: CN200966987Y
Application number: CN 200620077809
Authority: CN
Inventors: 虞培清; 陈云才
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-21
Filing date: 2006-09-21
Publication date: 2007-10-31
Anticipated expiration: 2016-09-21

Abstract

The utility model relates to a stirring device, in particular to a stirring device with a shaft seal which has longer service life and can be replaced with material. The utility model comprises an installation flange, a stirrer arranged over the installation flange, a reducer arranged under the installation flange and a bracket. A saddle is arranged over the installation flange and an end cap is relatively fixed on a stirring shaft and positioned over the saddle; a locking screw pair is arranged over the saddle and keeps a certain distance with the saddle; wherein, the locking stub of the screw pair is fixed with the stirring shaft and the locknut is fixed with the installation flange through an internal supporting seat, and the side wall of an internal supporting seat is provided with a material outlet; when the stirring shaft is at its working position, the upper end surface of saddle keeps a certain distance with lower end surface of end cap and forms a material outlet with a certain width, and the direction of material outlet is vertical with the stirring shaft. The utility model utilizes the centrifugal force generated by the end cap's rotation with the stirring shaft to exhaust the solid particles around end cap cavity and dynamic and static seal rings of shaft seal without any solid particle gathering, thus lowering down the abrasion of dynamic and static seal rings and the invalidation of shaft seal and prolonging the service life of shaft seal.

Description

The long agitating device that also can change the axle envelope with material of axle envelope life-span

Technical field

The utility model relates to a kind of agitating device, particularly a kind of long agitating device that also can change the axle envelope with material of envelope life-span.

Background technology

Some main equipments or Continuous Running Equipment side (end) agitating device in, if it obviously is irrational adopting the mode that will change the axle envelope after the material emptying in the still again, be directed to this, the agitating device of axle envelope just appears changing with material, as number of patent application a kind of " can change the agitating device of axle envelope " of being disclosed in 200520075774.7 the patent application case with material, the shaft of this agitating device and the hollow output shaft of reductor are connected by the swelling cover, the frictional force of utilizing the swelling cover to produce is transmitted moment of torsion, on mounting flange, establish a saddle, shaft passes saddle and is provided with the top that plug places saddle, be provided with the boss on band awl inclined-plane in the upper end of saddle, the corresponding groove that is provided with band awl inclined-plane on plug, on the awl inclined-plane, be provided with sealing ring, be provided with the screw thread projection in other on the groove of described plug, the corresponding screw thread storage tank that is provided with on the boss of described saddle, when unclamping swelling cover and drop-down shaft and rotating, shaft is just locked by the screw thread storage tank spiral of screw thread projection on the plug and saddle, simultaneously, awl inclined-plane on the saddle and the awl inclined-plane on the plug are sealed and matched by seal, make material can not enter into an envelope place, thereby can realize band material replacing axle envelope.But this agitating device also exists deficiency: promptly in whipping process, because the screw thread storage tank exists certain depth and tool closure, material (particularly solid particle material) enters into the screw thread storage tank easily and is difficult for being discharged from and produces gathering, can cause wearing and tearing (to as dynamic and static sealing ring) and inefficacy (to the spring in the axle sealing mechanism) to the axle sealing mechanism after being trapped in this storage tank, thus the service life of influence axle envelope.

The utility model content

The purpose of this utility model is the deficiency that solves above-mentioned agitating device, contains nonabradable side (end) agitating device with the material exchange of solid particle medium occasion axis envelope and provide a kind of in stirring.

The purpose of this utility model is achieved by the following technical solution: a kind of long agitating device that also can change the axle envelope with material of envelope life-span, include mounting flange, be arranged on the agitator of mounting flange top and reductor and the support thereof that is arranged on the mounting flange below, agitator is connected by the hollow output shaft of shaft and reductor, between shaft and mounting flange, also be provided with a sealing mechanism, the hollow output shaft of described shaft and reductor is connected by easily detachable connector, described shaft can move axially and rotate in a circumferential direction with the dismounting of connector, the bottom side is provided with saddle in the described mounting flange, the corresponding top that is installed with plug and places saddle on the shaft, shaft passes saddle and has the relative rotatable operating position that cooperates with saddle and make plug and latched position that saddle is sealed and matched, the top of described plug is provided with the set and locking screw pair separated by a distance with plug, the locking double-screw bolt of screw pair is fixedlyed connected with shaft, locking nut is fixedlyed connected with mounting flange by interior bearing, the sidewall of bearing is provided with logical material outlet in described, and when described shaft was in the operating position, the discharge gate of the upper surface of described saddle and the lower surface of plug formation tool separated by a distance certain width and the direction and the shaft axis of discharge gate were perpendicular.

The utility model further is set to: the extended surface of the faying face of the dynamic and static sealing ring of axle sealing mechanism places between the described discharge gate.

The utility model further is set to again: two internal diameters and two external diameters of the junction of described dynamic and static sealing ring are all equal.

The utility model further is set to again: upper and lower two of bearing interior bottom sides in the two ends of described logical material outlet extend to respectively.

The utility model further is set to again: also be provided with flushing hole on the described saddle, flushing hole one end extends to saddle and plug opposing end faces place, and the other end is connected with mounting flange valve pipe outward.

The beneficial effects of the utility model are: the centrifugal force that utilizes plug to be produced with the shaft rotation, plug inner chamber and the dynamic and static sealing ring of axle envelope solid particle are on every side in time discharged, can not occur gathering, thereby reduce the wearing and tearing of dynamic and static ring and the inefficacy of axle envelope, reach and improve the axle envelope purpose in service life.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment

Fig. 2 is the A-A cutaway view of the interior bearing among Fig. 1

The specific embodiment

Now in conjunction with the accompanying drawings the utility model is further described:

By Fig. 1, as can be known shown in Figure 2, a kind of envelope of the utility model life-span length also can be with the embodiment that expects the agitating device that the replacing axle seals, include mounting flange 9, be arranged on the agitator 1 of mounting flange 9 tops and be arranged on mounting flange 9 reductor 10 and support 8 thereof outward, agitator 1 is connected by the hollow output shaft 11 of shaft 2 with reductor 10, between shaft 2 and mounting flange 9, be provided with a sealing mechanism 7 (so-called axle sealing mechanism is a movable sealing mechanism), described shaft 2 (is generally the swelling cover with the hollow output shaft 11 of reductor 10 by easily detachable connector, not shown) be connected, described shaft 2 unclamps and can move axially and rotate in a circumferential direction with the swelling cover, (the direction here is that agitator 1 place is last in the top of described mounting flange 9, reductor 10 places are for down) be provided with saddle 91, corresponding sealing is installed with plug 6 and places the top of saddle 91 on the shaft 2, be provided with the boss 912 (can certainly be groove) on band awl inclined-plane 9121 in the upper end of saddle 91, the corresponding groove 61 that is provided with band awl inclined-plane 611 on plug 6, on awl inclined-plane 9121 (also can be on 611), be provided with sealing ring 4, the top of described plug 6 is provided with the set and locking screw pair 3 separated by a distance with plug 6, locking double-screw bolt 32 is fixedlyed connected with shaft 2, locking nut 31 is fixedlyed connected with mounting flange 9 by interior bearing 5, the sidewall of bearing 5 is provided with logical material outlet 51 in described, when described shaft 2 is in the operating position, the upper surface 911 of described saddle 91 is perpendicular with the direction and shaft 2 axis of the discharge gate 12 of the lower surface 62 formation tool certain widths separated by a distance of plug 6 and discharge gate 12, preferably make moving in the sealing mechanism 7, stationary seal ring 71, the extended surface of 72 binding face 73 be in discharge gate 12 between (wherein, the best is the centre position).When unclamping the swelling cover, following pulling and rotation shaft 2 make locking double-screw bolt 32 and locking nut 31 lockings, bore inclined-plane 9121 simultaneously and are sealed and matched with awl inclined-plane 611 and sealing ring 4, so material can not enter into a sealing mechanism, block up and cut off leaking of material, thereby can realize that just band material replacing axle seals.And agitating device in the course of the work, utilize plug to rotate the centrifugal force that is produced and control discharge gate 12 suitable dimensions with shaft, make plug inner chamber (being in the groove) and the dynamic and static sealing ring of axle envelope solid particle on every side by discharge from discharge gate 12 and logical material outlet 51 in time, can not occur gathering, and can make the plug inner chamber form the micro-vacuum shape, can make dynamic and static sealing ring reach no medium state of contact under the perfect condition, thereby reduce the wearing and tearing of dynamic and static sealing ring and the inefficacy of axle envelope, reach and improve the axle envelope purpose in service life.In the utility model, adopt set and locking screw secondary 3 and plug 6 mode separated by a distance,, prevent that shaft from dropping removing axle the be honored as a queen double-screw bolt 32 of plug and locking, the supporting role that nut 31 also plays shaft.The screw thread square type screw thread of interior bearing 5 and locking double-screw bolt 32, nut 31, both adopt loose fit, and shaft can be rotated and move axially easily, satisfy axial locking and get final product.Interior bearing is contactless when working with locking double-screw bolt 32, can not cause the wearing and tearing of shaft.

In above-mentioned, the axle envelope hermetically-sealed construction that also adopts built-in tape spool to hold, bearing adopts self-aligning bearing 13, both can control shaft radially wobbling at this place, can regulate the processing at this place and the coaxiality error that installation causes again, described dynamic and static sealing ring 71,72 materials adopt the PV value big, SiC that wearability is good and SiC (firmly to hard) sealing, two internal diameters and two external diameters of the junction of described dynamic and static sealing ring 71,72 are all equal, and control suitable dynamic and static sealing ring pretightening unit sealing load.Above-mentioned measure can prevent effectively that solid particle from reaching surface aggregation around dynamic and static sealing ring, reduces wearing and tearing and the inefficacy of axle envelope to dynamic and static sealing ring, thus the service life of improving the axle envelope.

Upper and lower two of bearing 5

interior bottom sides

52,53 can more have like this and drain material fast and effectively in the two ends of described logical material outlet 51 extended to respectively.

In addition, for when changing the axle envelope, make the material that is trapped in 6 of saddle 91 and plugs get rid of clean faster or when agitating device shuts down, prevent that solid particle from assembling herein, present embodiment also is provided with flushing hole 913 on described saddle 91, flushing hole one end extends to saddle and plug opposing end faces 911 places, outlet opening is generally 2-3, also can a plurality ofly distribute, the outer valve pipe of the other end and mounting flange is connected (can water dash also can gas towards), make when shaft stops operating, the material that utilizes hydraulic pressure or air pressure will be trapped between saddle and plug earlier washes away.

Claims

1. an axle envelope life-span length also can be changed the agitating device that axle seals with material, include mounting flange, be arranged on the agitator of mounting flange top and reductor and the support thereof that is arranged on the mounting flange below, agitator is connected by the hollow output shaft of shaft and reductor, between shaft and mounting flange, also be provided with a sealing mechanism, the hollow output shaft of described shaft and reductor is connected by easily detachable connector, described shaft can move axially and circumferentially rotate with the dismounting of connector, described mounting flange top is provided with saddle, the corresponding top that is installed with plug and places saddle on the shaft, shaft passes saddle and has the relative rotatable operating position that cooperates with saddle and make plug and latched position that saddle is sealed and matched, it is characterized in that: the top of described saddle is provided with the set and locking screw pair separated by a distance with saddle, the locking double-screw bolt of screw pair is fixedlyed connected with shaft, locking nut is fixedlyed connected with mounting flange by interior bearing, the sidewall of bearing is provided with logical material outlet in described, and when described shaft was in the operating position, the discharge gate of the upper surface of described saddle and the lower surface of plug formation tool separated by a distance certain width and the direction and the shaft axis of discharge gate were perpendicular.

2. agitating device according to claim 1 is characterized in that: the extended surface of the faying face of the dynamic and static sealing ring of axle sealing mechanism places between the described discharge gate.

3. agitating device according to claim 1 and 2 is characterized in that: two internal diameters and two external diameters of the junction of described dynamic and static sealing ring are all equal.

4. agitating device according to claim 1 and 2 is characterized in that: upper and lower two of bearing interior bottom sides in the two ends of described logical material outlet extend to respectively.

5. agitating device according to claim 3 is characterized in that: upper and lower two of bearing interior bottom sides in the two ends of described logical material outlet extend to respectively.

6. agitating device according to claim 5 is characterized in that: also be provided with flushing hole on the described saddle, flushing hole one end extends to saddle and plug opposing end faces place, and the other end is connected with mounting flange valve pipe outward.