CN201070797Y

CN201070797Y - Blending container for loosening material

Info

Publication number: CN201070797Y
Application number: CNU2007200045027U
Authority: CN
Inventors: 彼得·韦滕格尔
Original assignee: M-TEC MATHIS TECHNIK GmbH
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2007-02-13
Filing date: 2007-02-13
Publication date: 2008-06-11
Anticipated expiration: 2017-02-13

Abstract

The utility model relates to a mixing container (1) used for incompact materials. The mixing container is provided with a shell and a shaft (2) which can support a mixing tool and can be driven, the shaft passes through the wall (3) of the shell at the position of at least one end side and extends outwards and supports, wherein, a perforating position (5) where the shaft passes through the shell wall is provided with at least one sealing element (6) which forms an obturating ring and can be replaced, the sealing element is fixed by a fixing part (7) axially and can be replaced, wherein, the fixing part (7) used for fixing the sealing element axially is divided into a plurality of parts, and each single part of the fixing part can be carried down from a sealed shaft at the side face after being loosened, and at least one replaceable sealing element (10) is arranged on the sealed position on the shaft at intervals, after the sealing element is removed out from the use position, the replaceable sealing element is used as a replacement which can be removed in and is fixed on the position of the sealing element (6) which is removed out.

Description

The mixer that is used for bulk material

Technical field

The present invention relates to a kind ofly be used for dry or can murmuring mobile bulk material or be used for building material mixture such as the mixer of dry mortar or building mortar, what have a housing and one a supporting blend tool can driven axle, described axle passes the wall and the protruding and supporting of housing at least one distolateral place, wherein perforation place of passing housing wall at axle is provided with the seal that is configured to sealing ring that at least one can be changed, and described seal is fixing in the axial direction and can change by a fixed part.

Background technology

For example by the known a kind of such mixer of EP 0105107B1 and prove favourable.Yet axle is difficult to sealing with respect to housing wall, because bearing is subjected to very big wearing and tearing.Therefore axle must be able to be changed, and this needs to unclamp the bearing of axle in a lot of structures.

Summary of the invention

Therefore the object of the invention is, the mixer of the described type of beginning is provided, and wherein can change seal, and need not to open or remove in the zone of seal the bearing of axle.

Be arranged to achieve these goals, each single part that the fixed part that is used for the axial restraint seal is divided into several parts and fixed part can be taken off on by sealed axle in the side after unclamping, and on axle, at least one is set separatedly and replaces seal with sealed position, after seal was removed by its use location, described replacement seal part as an alternative can be moved into the position of the seal that is removed and fix at there.

Also possible is, the fixed part of seal is unclamped it based on its two-piece construction and removes from axle and seal, and need not to open bearing.The seal that is worn can be cut off and remove, and replaces by replacing seal immigration use location, and then fixed part can be placed into the use location again.Can avoid in the zone of seal, opening or removing the bearing of axle.

Particularly advantageously be, in the axial direction two sealing rings be set one after the other successively so that perforation place of seal shaft, described sealing ring has consistent size and can change after unclamping fixed part.Because high wearing and tearing can keep enough sealings in a long time at the beginning and make advantage of the present invention to utilize, because two seals can be replaced by the replacement seal that is positioned on the axle by similar mode.Also possiblely at this be, remove the seal of the most close mixer inside, second seal is moved into the use location and only replaces second seal, because second initial seal institute is frayed less.

Structure that meets purpose especially of the present invention is arranged to, seal constitutes the sealing ring that can roll up inwards, and axle has a bigger diameter in sealing place, the diameter of replacing the seal place than supporting is big, and seal can support indeformablely and have revolute shape after moving into the use location thereby replace.A roughly revolute seal, wherein inner opening is to the mixer interior roll, abuts on the outside of axle with corresponding rock deformation pressure and can be similar to lippacking to have good especially sealing effectiveness.Replacing seal is indeformable in the less zone of shaft diameter, thereby it does not bear fatigue of materials until exchange.

Advantageously, two or three replace the replacement seal of seals or even numbers number at least in setting.Replace the location of stretching out that seal can singlely be bearing in axle movably for for example four, five, six, seven or eight.Replace the number of seal can be on the one hand according to service life of seal, on the other hand according to selecting the service life of bearing.

Between two seals that one after the other are provided with successively in the axial direction in the use location or sealing ring, an intermediate cavity is set and is provided with one in addition and lead to the feedway of intermediate cavity, particularly delivery cannula, and partially filled at least full-bodied material of intermediate cavity or grease between two seals.Particle that seal by the most close mixer inside infiltrates behind certain hour or particle are captured to receive in the full-bodied material and therefore can not be discharged by second seal thus, thereby second seal bears less wearing and tearing and has corresponding higher service life.

Description of drawings

Elaborate embodiments of the invention by means of accompanying drawing below.Shown in the accompanying drawing of part signal:

The side view of Fig. 1 mixer of the present invention has the blend tool that is not shown specifically that portion within it is provided with, and it is by the axle supporting of a level, and described axle stretches out with a convex shoulder that is used to connect drive unit in Fig. 1;

The amplification longitudinal sectional view of the bearing of Fig. 2 axle respectively accounts for half respectively in the zone of two extension;

Fig. 3 is towards the transverse sectional view of the axle of the two-piece type fixed part direction of shaft seal.

The specific embodiment

One in Fig. 1 whole with 1 represent be used for drying or can murmuring mobile bulk material or be used for dry mortar or the mixer of building mortar for example can be the charging blender that similarly has trunnion axis 2 with EP 0105107B1.

Axle 2 stretches out the wall 3 that is positioned at there of the housing that constitutes mixer 1 and therefore is bearing in outside mixer 1 or its housing in this position in that at least one of mixer 1 is distolateral, finds out as being known by Fig. 2.Bearing is represented with 4 at this.

In addition as seen, removable sealing ring 6 is set as seal in axle 2 perforations place 5 of passing wall 3 of level in Fig. 2, it is fixing in the axial direction and can be replaced by a fixed part 7.

The vitals of this fixed part 7 is dishes that work in the axial direction, and it is divided into two

parts

71,72 according to Fig. 3, and they releasably are fixed on the use location by screw 8 respectively.

Observe Fig. 2 and Fig. 3 at the same time and can know and find out, two

parts

71,72 of fixed part 7 can be taken off from seal 6 and axle 2 after unclamping screw 8, and need not to open or dismantle bearing 4.

Find out among this external Fig. 2, on axle 2, replacement seal 10 is set separatedly with perforation place 5 and the sealing station that is positioned at there, after seal 6 was removed by its use location, described replacement seal can move to the position of the seal 6 that is removed and be fixed on there.If after after unclamping fixed part 7, the seal of wearing and tearing for example being removed by cut-out, replace seal 10 so and can be moved into use location and fixing by means of fixed part 7 and screw 8 again at there.Bearing 4 need not to be disassembled for this reason.

Can find in Fig. 2, perforation place 5 that two sealing rings 6 are used for seal shaft 2 one after the other is set in the axial direction successively, described sealing ring has consistent size and can change after acting on two fixed parts 7 on the sealing ring 6 unclamping.Can certainly only will remove, second seal 6 is moved into the use location and replaces the position that seal moves into original second seal with one from the nearest seal in the inside of mixer.

Fig. 2 is clear to be shown, and seal 6 constitutes the sealing ring that can roll up inwards, and roll up so inwards in the perforation zone of its inside, crooked and distortion, makes it towards the inner orientation of mixer 1 and therefore abut in the lippacking form on spools 2 the outside.

The diameter of axle 2 in the zone of perforation place 5 at seal 6 is bigger than the diameter of the position of supporting replacement seal 10, seal 10 can support according to Fig. 2 indeformablely and keep revolute shape after moving into the use location thereby replace, and it is close to the outside of axle with corresponding pressure under this shape.

The number of replacing seal 10 can be different.The number of replacing seal 10 in an embodiment is even numbers, is six, they or individually or in couples be used to change the sealing ring 6 that is worn.

In Fig. 2, find in addition, between two seals that one after the other are provided with successively in the axial direction in the use location or the sealing ring 6 intermediate cavity 11 is set and the feedway that leads to intermediate cavity 11 of a delivery cannula shape is set in addition, wherein also have one in the zone of this external screw 8 and be used for two seals 6 are carried out pinpoint spacing washer 13.Can in intermediate cavity 11, fill for example grease of full-bodied material via feedway 12, thereby may be captured and surround by described high-viscosity material by the particle that infiltrates from mixer 1 nearest seal 6, and be blocked by second seal 6 at least in a long time.Friction between

seal

6 and 2 or sleeves that are provided with in sealing area 14 of axle simultaneously can be reduced.

As in Fig. 2 as seen, sleeve 14 has a rake 15 at it in the face of a side of replacing seal 10, it makes that replacing seal 10 is inserted in the use location more easily.

Claims

1. mixer (1) that is used for bulk material, what have a housing and one a supporting blend tool can driven axle (2), described axle passes housing wall (3) and protruding and supporting at least one distolateral place, wherein perforation place (5) of passing housing wall (3) at axle (2) is provided with the seal that is configured to sealing ring (6) that at least one can be changed, described seal is fixed in the axial direction by a fixed part (7) and can be changed, it is characterized in that, the fixed part (7) that is used for the axial restraint seal merotomizes and each single part of fixed part can be taken off from sealed axle in the side after unclamping, and in the last and sealed position of axle (2) at least one is set separatedly and replaces seal (10), after seal was removed by its use location, described replacement seal part as an alternative can be moved into the position of the seal (6) that is removed and fix at there.

2. mixer as claimed in claim 1, it is characterized in that, in the axial direction two sealing rings (6) are set one after the other successively so that perforation place (5) of seal shaft (2), described sealing ring has consistent size and can change after unclamping fixed part (7).

3. mixer as claimed in claim 1 or 2, it is characterized in that, seal (6) constitutes the sealing ring that can roll up inwards, and the diameter that axle (2) is located than supporting replacement seal (10) at the diameter of sealing place is big, thereby replacement seal (10) can support indeformablely and have revolute shape after moving into the use location.

4. mixer as claimed in claim 1 or 2 is characterized in that, two or three replace the replacement seal of seals (10) or even numbers number at least in setting.

5. mixer as claimed in claim 1 or 2 is characterized in that, replaces the location of stretching out that seal (10) can singlely be bearing in axle (2) movably for four, five, six, seven or eight.

6. mixer as claimed in claim 1 or 2, it is characterized in that, an intermediate cavity (11) is set and feedway (12), particularly a delivery cannula of leading to intermediate cavity (11) is set in addition between two seals that one after the other are provided with successively in the axial direction in the use location or the sealing ring (6), and partially filled at least full-bodied material of intermediate cavity (11) or grease between two seals.

7. mixer as claimed in claim 1 or 2 is characterized in that, on the inherent axle in zone (2) of seal (6) sleeve (14) is set, and described sleeve (14) has a rake (15) in its zone in the face of replacement seal (10).