CN201141441Y - Labyrinth type axle head sealing device - Google Patents
Labyrinth type axle head sealing device Download PDFInfo
- Publication number
- CN201141441Y CN201141441Y CNU2007201289705U CN200720128970U CN201141441Y CN 201141441 Y CN201141441 Y CN 201141441Y CN U2007201289705 U CNU2007201289705 U CN U2007201289705U CN 200720128970 U CN200720128970 U CN 200720128970U CN 201141441 Y CN201141441 Y CN 201141441Y
- Authority
- CN
- China
- Prior art keywords
- ring
- hub
- baffle ring
- baffle
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a labyrinth type shaft end sealing device used for the concrete mixer. The device comprises an agitating shaft, a first lubricating grease filling hole, a second lubricating grease filling hole, a fixed ring hub, a rotary ring hub, a positioning pin, a shaft sleeve, a protection baffle plate, a baffle ring, a first floating sealing ring, a second floating sealing ring, a first O-shaped sealing ring, a second O-shaped sealing ring, a first framework oil seal, a distance sleeve, a second framework oil seal, a bearing seat, a supporting self-aligning bearing, a bearing baffle and a bearing end cover; the rotary ring hub is rotatably matched with the fixed ring hub, a U-shaped annular groove is produced at one end of the rotary ring hub, an annular flange is formed on the baffle ring, and the rotary ring hub is tightly pressed on the baffle ring; the other end of the rotary ring hub is respectively and closely contacted with the first O-shaped sealing ring and the first floating sealing ring; the rotary ring hub is connected with the shaft sleeve and the agitating shaft through the positioning pin. The device can effectively prevent the mortar from invading into the shaft end part of the agitating shaft, solves the problems of mortar leakage and abrasion at the agitating shaft end, and further protects the agitating shaft and the supporting self-aligning bearing.
Description
Technical field
The utility model relates to a kind of seal arrangement, relates in particular to the shaft end seal device on a kind of concrete mixing plant stirring host.
Background technique
The stirring host shaft end seal of concrete mixing plant use at present adopts mechanical seal more, for example publication number is the shaft end seal device that the Chinese utility model patent of CN87204871U discloses a kind of axle horizontal type mortar mixer, this device adopts float grease seal (comprising a pair of floating ring and a pair of " O " type rubber ring), oil duct and sealing gasket to constitute, two floating rings respectively with movable hub, anchor hub socket, taper place between floating ring and movable hub, anchor hub respectively adorns one " O " type rubber ring, and oil duct directly leads to the floating ring place.But because of mortar has mobile characteristics and produces under the effect of malleation in the stirring host when feeding intake, mortar can enter axle head from the gap between movable hub, anchor hub and the stirring shaft.Under the normal condition, lubricant oil keeps certain malleation, mortar be difficult for to be invaded axle head, but because of parts wear, oil sealing is aging or it is improper to maintain, mortar is easy to invade axle head, further aggravate parts wear, thereby cause the axle head spillage, leak mortar and lubricating grease mixture can further enter supporting bearing base by oil sealing, cause selfaligning bearing to damage, finally cause mechanical failure, delay production.Ordinary circumstance, the surface of contact between change hub and the axle sleeve are a upright plane, and the two existence relatively rotates, and this structure causes mortar to be easy to enter axial end portion.
The model utility content
In order to overcome the deficiency that existing shaft end seal can not fully stop mortar to invade and cause axle head spillage and support selfaligning bearing to damage, the utility model provides a kind of labyrinth type axle head sealing device, not only can effectively stop mortar to be invaded, solve axle head spillage problem, but also can prevent to get loose because of the baffle ring that concrete wearing and tearing baffle ring and screw cause.
It is as follows that the utility model solves the problems of the technologies described above the technological scheme that is adopted:
This labyrinth type axle head sealing device comprises stirring shaft, first grease filling hole, second grease filling hole, encircles hub, change hub, locating stud, axle sleeve, protection baffle plate, baffle ring, first fluctuate hermetical ring, second fluctuate hermetical ring, first " O " RunddichtringO, second " O " RunddichtringO, first outside framework oil seal, spacer, second outside framework oil seal, bearing support, support selfaligning bearing, bearing baffle, bearing (ball) cover surely; The change hub with encircle hub surely and be rotatably assorted, change hub one end is processed with a U-loop groove, has annular flange flange on the baffle ring, the U-loop groove on the change hub matches with the annular flange flange on the baffle ring; The change hub compresses baffle ring, the two is rotatably assorted; The change hub the other end closely contacts with first fluctuate hermetical ring with first " O " RunddichtringO; The change hub is connected with stirring shaft with axle sleeve by locating stud;
Described baffle ring with encircle hub surely and be connected with screw;
The height of the annular flange flange on the described baffle ring and width are respectively less than the degree of depth and the width of change hub U-loop groove;
Described baffle ring is that an annular is whole;
Described protection baffle plate is connected with baffle ring spot welding;
Described protection baffle plate is two blocks of semi-round ring shape steel plates, protection baffle plate internal diameter greater than baffle ring internal diameter, protection external diameter greater than the baffle ring external diameter.
The beneficial effects of the utility model are, because it is tortuous circuitous that mortar is invaded the path of stirring the axle head Seal cage, at first enter the gap between baffle ring and the stirring shaft, arrive change hub place, enter the change hub and encircle gap between the hub surely through the gap of vertical surface of change hub and baffle ring again, enter then in the spindle nose Seal cage, mortar has been walked " detour " like this, suffered resistance increases greatly, thereby can effectively stop mortar to invade axle head, reaches prevention axle head spillage and wear problem; In addition; increase by a protection baffle plate in the baffle ring outside; prevent that concrete wearing and tearing baffle ring and screw from causing baffle ring to get loose; can effectively stop mortar to be invaded in the stirring shaft shaft end seal chamber; thereby solve stirring host stirring shaft axle head spillage and wear problem; fully the assurance stirring shaft supports the normal function of selfaligning bearing, and final assurance is produced and carried out smoothly and reduction equipment use maintenance cost.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a general assembly schematic representation of the present utility model;
Fig. 2 is a change hub generalized section of the present utility model;
Fig. 3 is a baffle ring generalized section of the present utility model;
Fig. 4 is a protection baffle plate schematic representation of the present utility model;
Among the figure: 1, stirring shaft, 2, first grease filling hole, 3, second grease filling hole, 4, encircle hub surely; 5, change hub, 6, locating stud, 7, axle sleeve, 8, the protection baffle plate; 9, baffle ring, 10, first fluctuate hermetical ring, 11, first " O " RunddichtringO; 12, second " O " RunddichtringO, 13, second fluctuate hermetical ring, 14, first outside framework oil seal; 15, spacer, 16, second outside framework oil seal, 17, bearing support; 18, support selfaligning bearing, 19, bearing baffle, 20, bearing (ball) cover.
Embodiment
As shown in Figure 1, this labyrinth type axle head sealing device comprise stirring shaft 1, first grease filling hole 2, second grease filling hole 3, surely encircle hub 4, change hub 5, locating stud 6, axle sleeve 7, protection baffle plate 8, baffle ring 9, first fluctuate hermetical ring 10, first " O " RunddichtringO 11, second " O " RunddichtringO 12, second fluctuate hermetical ring 13, first outside framework oil seal 14, spacer 15, second outside framework oil seal 16, bearing support 17, support selfaligning bearing 18, bearing baffle 19, bearing (ball) cover 20; Protection baffle plate 8, baffle ring 9, surely encircle hub 4, change hub 5 is linked in sequence or contact; Change hub 5 is connected with stirring shaft 1 with axle sleeve 7 by locating stud 6, and the three rotates synchronously; Change hub 5 with encircle hub 4 for being rotatably assorted surely; Be processed with the U-loop groove at change hub 5 one ends, have flange on the baffle ring 9, the U-loop groove of change hub 5 matches with the flange of baffle ring 9, and the flange height of baffle ring 9 and width are all less than the degree of depth and the width of the U-loop groove of change hub 5; Rotate hub 5 the other ends and first " O " type circle 11 compress with first fluctuate hermetical ring 10 contact, the two is rotatably assorted; Baffle ring 9 is that an annular is whole; Protection baffle plate 8 is connected with baffle ring 9 spot welding, baffle ring 9 with encircle hub 4 usefulness screws surely and be connected, assurance baffle ring 9 and encircle hub 4 surely and maintain static; Protection baffle plate 8 is two blocks of semi-round ring shape steel plates, and the internal diameter of protection baffle plate 8 is greater than the external diameter of the internal diameter of baffle ring 9, protection baffle plate 8 external diameter greater than baffle ring 9.
The grease that first grease filling hole is injected is in order to protect first round section joint ring, second round section joint ring, first fluctuate hermetical ring and second fluctuate hermetical ring, generally, only to need per tour to add once oil; Second grease filling hole 3 connects the self oiling oil pump, and the self oiling oil pump is in running order all the time during stirring host work, to guarantee the quantity and the pressure of lubricating grease in the shaft end seal chamber; If mortar will enter the shaft end seal chamber, at first need to invade the upright surface of contact at close shaft shoulder place between change hub 5 and the baffle ring 9 by the gap between stirring shaft 1 and the baffle ring 9, enter into the U-loop groove of change hub 5 and the gap between baffle ring 9 flanges along this upright surface of contact again, also need be by arriving in the shaft end seal chamber near the annulus of encircling the upright surface of contact and the change hub 5 at hub 4 places surely and encircle surely between the hub 4 between change hub 5 and the baffle ring 9, thereby make mortar walk " detour ", because change hub 5 is at first fluctuate hermetical ring 10, compress baffle ring 9 under the effect of first " O " RunddichtringO 11, so the gap is very little, mortar is invaded resistance to be increased greatly, in the shaft end seal chamber under the normal situation of the quantity of lubricating grease and pressure, mortar is difficult to invade in the shaft end seal chamber, first " O " RunddichtringO 11, second " O " RunddichtringO 12 and first outside framework oil seal 14, second outside framework oil seal 16 just can not ground away by mortar yet, thereby reaches the purpose of prevention axle head spillage and protection support selfaligning bearing 18; Protection baffle plate 8 separates baffle ring 9 and set screw thereof and concrete, prevents to get loose and damage because of directly wear and tear baffle ring 9 that baffle ring 9 and set screw thereof cause of concrete.
Claims (6)
1, a kind of labyrinth type axle head sealing device comprises stirring shaft, first grease filling hole, second grease filling hole, encircles hub, change hub, locating stud, axle sleeve, protection baffle plate, baffle ring, first fluctuate hermetical ring, second fluctuate hermetical ring, first " O " RunddichtringO, second " O " RunddichtringO, first outside framework oil seal, spacer, second outside framework oil seal, bearing support, support selfaligning bearing, bearing baffle, bearing (ball) cover surely; It is characterized in that the change hub and encircle hub surely being rotatably assorted, change hub one end is processed with a U-loop groove, has annular flange flange on the baffle ring, and the U-loop groove on the change hub matches with the annular flange flange on the baffle ring; The change hub compresses baffle ring, the two is rotatably assorted; The change hub the other end closely contacts with first fluctuate hermetical ring with first " O " RunddichtringO; The change hub is connected with stirring shaft with axle sleeve by locating stud.
2, labyrinth type axle head sealing device according to claim 1 is characterized in that described baffle ring and encircles hub surely and be connected with screw.
3, labyrinth type axle head sealing device according to claim 1 is characterized in that the height of the annular flange flange on the described baffle ring and width are respectively less than the degree of depth and the width of change hub U-loop groove.
4, labyrinth type axle head sealing device according to claim 1 is characterized in that described baffle ring is that an annular is whole.
5, labyrinth type axle head sealing device according to claim 1 is characterized in that described protection baffle plate is connected with baffle ring spot welding.
6, labyrinth type axle head sealing device according to claim 1 is characterized in that described protection baffle plate is two blocks of semi-round ring shape steel plates, protection baffle plate internal diameter greater than baffle ring internal diameter, protection baffle plate external diameter greater than the baffle ring external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201289705U CN201141441Y (en) | 2007-08-27 | 2007-08-27 | Labyrinth type axle head sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201289705U CN201141441Y (en) | 2007-08-27 | 2007-08-27 | Labyrinth type axle head sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141441Y true CN201141441Y (en) | 2008-10-29 |
Family
ID=40069153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201289705U Expired - Lifetime CN201141441Y (en) | 2007-08-27 | 2007-08-27 | Labyrinth type axle head sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201141441Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313019A (en) * | 2011-08-04 | 2012-01-11 | 丹东克隆集团有限责任公司 | Friction ring type water sealing device |
| CN102335962A (en) * | 2011-09-30 | 2012-02-01 | 永济新时速电机电器有限责任公司 | Novel mortar truck with sealing structure |
| CN102874733A (en) * | 2012-09-13 | 2013-01-16 | 芜湖市恒峰科技有限公司 | Oil seal leading-in fixture for engines |
| CN103032572A (en) * | 2012-12-29 | 2013-04-10 | 长安大学 | Shaft end sealing device for double-horizontal-shaft concrete stirrer |
| CN104959068A (en) * | 2015-07-13 | 2015-10-07 | 鞍山市永恒特种耐火材料厂 | Anti-lock sealing structure of forcedly-sealing injection-mix vertical-type bottom stirring mixing machine |
| CN106003402A (en) * | 2016-07-14 | 2016-10-12 | 安徽海龙建筑工业有限公司 | Concrete distributor used for vertical combination formwork |
| CN111237473A (en) * | 2020-03-06 | 2020-06-05 | 西华大学 | Sealing performance control system of sealing device |
-
2007
- 2007-08-27 CN CNU2007201289705U patent/CN201141441Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313019A (en) * | 2011-08-04 | 2012-01-11 | 丹东克隆集团有限责任公司 | Friction ring type water sealing device |
| CN102335962A (en) * | 2011-09-30 | 2012-02-01 | 永济新时速电机电器有限责任公司 | Novel mortar truck with sealing structure |
| CN102335962B (en) * | 2011-09-30 | 2013-04-24 | 永济新时速电机电器有限责任公司 | Novel mortar truck with sealing structure |
| CN102874733A (en) * | 2012-09-13 | 2013-01-16 | 芜湖市恒峰科技有限公司 | Oil seal leading-in fixture for engines |
| CN103032572A (en) * | 2012-12-29 | 2013-04-10 | 长安大学 | Shaft end sealing device for double-horizontal-shaft concrete stirrer |
| CN104959068A (en) * | 2015-07-13 | 2015-10-07 | 鞍山市永恒特种耐火材料厂 | Anti-lock sealing structure of forcedly-sealing injection-mix vertical-type bottom stirring mixing machine |
| CN106003402A (en) * | 2016-07-14 | 2016-10-12 | 安徽海龙建筑工业有限公司 | Concrete distributor used for vertical combination formwork |
| CN111237473A (en) * | 2020-03-06 | 2020-06-05 | 西华大学 | Sealing performance control system of sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101158406A (en) | Labyrinth type axle head sealing device | |
| CN201141441Y (en) | Labyrinth type axle head sealing device | |
| CN206617584U (en) | A kind of sealing device of mortar vehicle agitating shaft shaft end | |
| CN105464882A (en) | Main shaft seal device and axial flow turbine with same | |
| CN202673993U (en) | Universal ball head bearing | |
| CN104453892A (en) | Heading machine and inner spraying system of cutting part of heading machine | |
| CN205001708U (en) | 6 tonne pneumatic tyred excavator uses central swivel joint | |
| CN206694712U (en) | A kind of excavator hydraumatic swivel joint | |
| CN201544345U (en) | Shaft end sealing structure and concrete mixer with shaft end sealing structure | |
| CN205559794U (en) | Mining double -chain conveyor seals sub -assembly | |
| CN107152463A (en) | Bearing divergence type slip casting bearing package is put | |
| CN202031994U (en) | Labyrinth-type bearing isolator | |
| CN207018367U (en) | Bearing divergence type slip casting bearing package is put | |
| CN107738888A (en) | The new type sealing device of the anti-dust-proof special operation condition lower belt conveyer drum axle of corruption | |
| CN202108771U (en) | Sealing device structure for sewage pump | |
| CN205044842U (en) | Thrust wheel with thermal diffusivity and leakproofness are good | |
| CN2572037Y (en) | Stirring axle seal device for concrete pump | |
| CN206845524U (en) | A kind of deep well pump special angular contact ball bearing | |
| CN205938277U (en) | 6 tonner wheeled excavator of air flue self -lubricating uses central swivel joint | |
| CN209742886U (en) | Supporting and rotating structure of heading machine | |
| CN201129460Y (en) | Dustproof type sealing means for main shaft of ball mill | |
| CN201818795U (en) | Automatic compensation self-lubricating seal | |
| CN219866408U (en) | Swivel joint | |
| CN219692213U (en) | Dustproof sealing structure of speed reducer | |
| CN212126599U (en) | Wear-resisting type conveying roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Lu Gang Road Show in 071000 districts in Hebei city of Baoding province No. 125 Patentee after: Hebei construction group Limited by Share Ltd Address before: 071070, No. 54 West 329, new urban district, Hebei, Baoding Patentee before: Heibei Construction Group Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081029 |
|
| CX01 | Expiry of patent term |