CN103267128B - Chain wheel shaft sealing mechanism - Google Patents
Chain wheel shaft sealing mechanism Download PDFInfo
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- CN103267128B CN103267128B CN201310215095.4A CN201310215095A CN103267128B CN 103267128 B CN103267128 B CN 103267128B CN 201310215095 A CN201310215095 A CN 201310215095A CN 103267128 B CN103267128 B CN 103267128B
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- sealing
- axle
- sealing cover
- shaft
- seal
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Abstract
A chain wheel shaft sealing mechanism comprises a transmission box, a shaft, a sealing ring, a first sealing cover, a first sealing shade, a driving chain wheel, a second sealing shade, a shaft sleeve, a second sealing cover and a support. The sealing ring is sleeved on the shaft after an O-type ring and a framework oil seal are respectively arranged on the sealing ring, and the sealing ring is placed in an end portion bearing base hole. The first sealing cover is sleeved on the shaft after being provided with a first oil seal. The driving chain wheel is sleeved on the shaft. The second sealing cover is sleeved on the outer circle of the shaft sleeve after being provided with a second oil seal, the second sealing cover and the shaft sleeve are arranged on the shaft together and are fixedly arranged on a tail portion bearing base front end face through a screw. The tail end of the shaft is supported in a tail portion bearing base through a bearing. The first sealing shade and the second sealing shade are respectively composed of two semi-circular shades in a butt joint and splicing mode. A first annular cavity and a second annular cavity are formed on the outer circle step of the left end of a spoke and the outer circle step of the right end of the spoke through the first sealing shade and the second sealing shade respectively, and pressure lubricating grease is respectively injected into the first annular cavity and the second annular cavity. The chain wheel shaft sealing mechanism effectively ensures the sealing performance of a chain wheel driving shaft of a slot milling machine, and ensures work stabilization of equipment.
Description
Technical field
The present invention relates to a kind of slotter sprocket shaft sealing mechanism for the construction of cement stabilization concrete diaphragm wall engineering method, foundation engineering, retaining wall and seepproof screen can be widely used in and build, the supporting of Foundation Pit wall, the construction of dam reinforcement and soft soil foundation improvement etc.
Background technique
At present, in the foundation engineering of building, the excavation of road tunnel and commons ditch, the vertical shaft of shield structure, the retaining wall on basis, seepproof screen, the supporting of Foundation Pit wall, bay sea wall, in the engineerings such as the foundation stabilization of reservoir dam and the improvement of soft soil foundation, due to soil-cement concrete diaphragm wall engineering method (i.e. TRD engineering method), to have construction plant height low, complete machine stability is good, retaining wall, the body of wall continuity of seepproof screen, homogenieity is high, body of wall equal thickness is without seam, core is arranged arbitrarily, wall body vertical precision is high, and operating efficiency is high, the remarkable advantages such as good economy performance, find broad application and popularity.TRD engineering method builds the principle of concrete diaphragm wall, that the more piece cutting box Chain Link of the digging of TRD slotter stirring chain being equipped with cutter is inserted underground, drive installation is between drive sprocket and driven sprocket and chain is stirred in the digging be positioned in cutting box side rails, at cutter while revolution, one edge ground is do while transverse horizontal movement, spray cutting fluid, soil solidification liquid by cutting casing, and carry out mix and blend with the soil of original position, form equal thickness cement stabilization concrete diaphragm wall.Insert the intensity that the core such as I-steel, thin-plate element can improve body of wall.
In the prior art, the digging stirring chain that cutter and rabble are housed forms chain drive between driving sprocket wheel and driven sprocket, when driving sprocket wheel is installed to live axle, the mode that its sealing means only adopts O RunddichtringO to combine with multiple tracks oil sealing usually, its sealing principle is the squeezing action by Sealing.When lower groove carries out transverse direction and vertically cuts digging stirring chain over the ground, constantly mud in cell body is taken out of, containing digging night, consolidation liquid in mud, very large on the impact of O RunddichtringO and oil sealing, easy generation wearing and tearing are broken, greatly reduce its sealability, cause on the mud impouring chain wheel drive axle containing digging night, consolidation liquid and transmission case inner chamber, wearing and tearing appears in the spline causing the bearing, gear, the axle that are positioned at driveshaft end to be connected with gear, cause slotter equipment failure, have a strong impact on the working life of equipment, reduce operating efficiency.
Summary of the invention
The object of the invention is to according to the deficiencies in the prior art, a kind of sealing of effective raising slotter sprocket shaft and anti-dust performance are provided, guarantee equipment working stability and the high sprocket shaft sealing mechanism of operating efficiency.
The present invention is achieved through the following technical solutions:
A kind of sprocket shaft sealing mechanism, comprise and there is the end axis bearing of buried bearing and the transmission case of gearwheel, there is the axle of spline head and the middle part spline separated by axle journal, there is the seal ring of outer ring groove and inner ring groove, there is the first sealing cover of multiple tracks first seal groove and the first outward flange, first seal closure, there is the driving sprocket wheel of wheel body and spoke, second seal closure, axle sleeve, the support of second sealing cover with multiple tracks second seal groove and the second outward flange and the tail bearing seat with buried bearing, it is characterized in that: the spline head of described axle inserts the hole being arranged in the gearwheel of transmission case, its axle journal is supported in end axis bearing by bearing, described seal ring is set on axle after mounting O-shaped rings and outside framework oil seal respectively in outer ring groove and inner ring groove, and with on rear side of stuffing box bearing in the hole being placed in end bearing seat, described first sealing cover is set on axle install the first oil sealing in its first seal groove after, described driving sprocket wheel is loaded on the middle part spline of axle by the inner spline housing of spoke, be installed on axle together after on described second sealing cover is set in axle sleeve cylindrical install the second oil sealing in its second seal groove after, and the front-end face being fixed on tail bearing seat with screw is with on front side of stuffing box bearing, described the tip of the axis is supported on tail bearing seat by bearing, and the ear end face of tail bearing seat installs end cap, described first seal closure and the second seal closure dock assembled by two the first semicircle covers and two the second semicircle covers respectively, two the first semicircle covers while be installed on the first outward flange of the first sealing cover by screw, on the cylindrical step that the left end that another side is placed in spoke is arranged, two the second semicircle covers while be installed on the second outward flange of the second sealing cover by screw, another side be placed in spoke right-hand member arrange cylindrical step on, described first seal closure and the second seal closure form the first toroidal cavity and the second toroidal cavity respectively, difference injection pressure lubricating grease in it, described support is installed in transmission case outer wall by bolt.
The present invention can be, in the first seal groove of described first sealing cover and the second seal groove of the second sealing cover except installing the first oil sealing and the second oil sealing respectively, also fills injection pressure lubricating grease respectively.
The present invention can also be, described pressure grease is have wear-resisting, waterproof, No. 2 universal lithium base fat of anti-oxidant and favorable sealing property or No. 3 universal lithium base fat.
Accompanying drawing explanation
Fig. 1 is the structural representation of sprocket shaft sealing mechanism of the present invention;
Fig. 2 is the sectional view of sprocket shaft sealing mechanism of the present invention;
Fig. 3 is E portion partial enlarged drawing in Fig. 2;
Fig. 4 is F portion partial enlarged drawing in Fig. 2;
Fig. 5 is the structural representation of the first seal closure in sprocket shaft sealing mechanism of the present invention;
Fig. 6 is A-A sectional view in Fig. 5;
Fig. 7 is the structural representation of the second seal closure in sprocket shaft sealing mechanism of the present invention;
Fig. 8 is B-B sectional view in Fig. 7.
Embodiment
Below in conjunction with embodiment described in accompanying drawing, the present invention is further illustrated.
Embodiment 1
As shown in figures 1-8, a kind of sprocket shaft sealing mechanism, comprise and there is the end axis bearing 11 of buried bearing and the transmission case 1 of gearwheel 12, there is the axle 2 of spline the head 21 and middle part spline 22 separated by axle journal, there is the seal ring 3 of outer ring groove 31 and inner ring groove 32, there is the first sealing cover 4 of multiple tracks first seal groove 41 and the first outward flange 44, first seal closure 5, there is the driving sprocket wheel 6 of wheel body 61 and spoke 62, second seal closure 7, axle sleeve 8, the support 10 of second sealing cover 9 with multiple tracks second seal groove 91 and the second outward flange 94 and the tail bearing seat 101 with buried bearing, it is characterized in that: the spline head 21 of described axle 2 inserts the hole being arranged in the gearwheel 12 of transmission case 1, its axle journal is supported in end axis bearing 11 by bearing, described seal ring 3 is set on axle 2 after mounting O-shaped rings 311 and outside framework oil seal 321 respectively in outer ring groove 31 and inner ring groove 32, and with on rear side of stuffing box bearing in the hole being placed in end bearing seat 11, be set on axle 2 after described first sealing cover 4 installs the first oil sealing 411 in its first seal groove 41, described driving sprocket wheel 6 is loaded on the middle part spline 22 of axle 2 by the inner spline housing of spoke 62, be installed on together on axle 2 after on the cylindrical being set in axle sleeve 8 after described second sealing cover 9 installs the second oil sealing 911 in its second seal groove 91, and the front-end face being fixed on tail bearing seat 101 with screw is with on front side of stuffing box bearing, the end of described axle 2 is supported on tail bearing seat 101 by bearing, and the ear end face of tail bearing seat 101 installs end cap 102, described first seal closure 5 and the second seal closure 7 dock assembled by two the first semicircle covers 51 and two the second semicircle covers 71 respectively, two the first semicircle covers 51 while be installed on the first outward flange 44 of the first sealing cover 4 by screw, on the cylindrical step that the left end that another side is placed in spoke 62 is arranged, two the second semicircle covers 71 while be installed on the second outward flange 94 of the second sealing cover 9 by screw, another side be placed in spoke 62 right-hand member arrange cylindrical step on, described first seal closure 5 and the second seal closure 7 form the first toroidal cavity 55 and the second toroidal cavity 75 respectively, the inlet airtight when the not opening injection pressure lubricating grease 5775 respectively by seal closure cover body is arranged in it, described pressure grease 5775 is No. 2 universal lithium base fat, No. 3 universal lithium base fat or Universal automobile lithium grease, has the characteristic of wear-resisting, waterproof, anti-oxidant and good seal performance, described support 10 is installed in transmission case 1 outer wall by bolt.
When the foundation engineering adopting TRD slotter to carry out building, retaining wall and seepproof screen are built, the supporting of Foundation Pit wall, when dam reinforcement and soft soil foundation improvement construction, after installing all cutting boxes and digging chain according to the digging degree of depth of concrete diaphragm wall, on the cylindrical step that spoke 62 left end and right-hand member that are positioned at driving sprocket wheel 6 are arranged, two the first semicircle covers 51 of the first seal closure 5 and two the second semicircle covers 71 of the second seal closure 7 being screwed respectively is connected on the first outward flange 44 of the first sealing cover 4 and the second outward flange 94 of the second sealing cover 9, with screw, two the first semicircle covers 51 and two the second semicircle covers 71 are docked again, first seal closure 5 and the second seal closure 7 are held at the spoke about 62 of driving sprocket wheel 6 respectively on the cylindrical step of setting and are formed the first toroidal cavity 55 and the second toroidal cavity 75, with grease gun, pressure grease 5775 is injected the first toroidal cavity 55 and the second toroidal cavity 75 respectively, this pressure grease 5775 is No. 2 universal lithium base fat, No. 3 universal lithium base fat or Universal automobile lithium grease, have wear-resisting, waterproof, the characteristic of anti-oxidant and good seal performance, the mud brought out in cell body when digging chain can be moved up and down, dust and sand and moisture are effectively isolated, thus the sealability of support chain wheel shaft.The present invention effectively improves sealing and the anti-dust performance of slotter sprocket shaft, guarantees equipment working stability, the extension device life-span, greatly improves operating efficiency high.
Embodiment 2
As different from Example 1, in the second seal groove 91 of the first seal groove 41 of described first sealing cover 4 and the second sealing cover 9 except the first oil sealing 411 and the second oil sealing 911 are installed respectively, also injection pressure lubricating grease 5775 is filled respectively.
Claims (3)
1. a sprocket shaft sealing mechanism, comprise and there is the end axis bearing (11) of buried bearing and the transmission case (1) of gearwheel (12), there is the axle (2) of spline head (21) and the middle part spline (22) separated by axle journal, there is the seal ring (3) of outer ring groove (31) and inner ring groove (32), there is first sealing cover (4) of multiple tracks first seal groove (41) and the first outward flange (44), first seal closure (5), there is the driving sprocket wheel (6) of wheel body (61) and spoke (62), second seal closure (7), axle sleeve (8), the support (10) of second sealing cover (9) with multiple tracks second seal groove (91) and the second outward flange (94) and the tail bearing seat (101) with buried bearing, it is characterized in that: the spline head (21) of described axle (2) inserts the hole being arranged in the gearwheel (12) of transmission case (1), its axle journal is supported in end axis bearing (11) by bearing, described seal ring (3) is set on axle (2) after mounting O-shaped rings (311) and outside framework oil seal (321) respectively in outer ring groove (31) and inner ring groove (32), and with on rear side of stuffing box bearing in the hole being placed in end bearing seat (11), described first sealing cover (4) is set on axle (2) install the first oil sealing (411) in its first seal groove (41) after, described driving sprocket wheel (6) is loaded on the middle part spline (22) of axle (2) by the inner spline housing of spoke (62), be installed on together on axle (2) after on described second sealing cover (9) is set in axle sleeve (8) cylindrical after installing the second oil sealing (911) in its second seal groove (91), and be fixed on the front-end face of tail bearing seat (101) with on front side of stuffing box bearing with screw, the end of described axle (2) is supported on tail bearing seat (101) by bearing, and the ear end face of tail bearing seat (101) installs end cap (102), described first seal closure (5) and the second seal closure (7) dock assembled by two the first semicircle covers (51) and two the second semicircle covers (71) respectively, two the first semicircle covers (51) while be installed on first outward flange (44) of the first sealing cover (4) by screw, on the cylindrical step that the left end that another side is placed in spoke (62) is arranged, two the second semicircle covers (71) while be installed on second outward flange (94) of the second sealing cover (9) by screw, another side be placed in spoke (62) right-hand member arrange cylindrical step on, described first seal closure (5) and the second seal closure (7) form the first toroidal cavity (55) and the second toroidal cavity (75) respectively, difference injection pressure lubricating grease (5775) in it, described support (10) is installed in transmission case (1) outer wall by bolt.
2. a kind of sprocket shaft sealing mechanism according to claim 1, it is characterized in that in first seal groove (41) of described first sealing cover (4) and second seal groove (91) of the second sealing cover (9) except the first oil sealing (411) and the second oil sealing (911) are installed respectively, also filling injection pressure lubricating grease (5775) respectively.
3. a kind of sprocket shaft sealing mechanism according to claim 1 and 2, is characterized in that described pressure grease (5775) is for having wear-resisting, waterproof, No. 2 universal lithium base fat of anti-oxidant and favorable sealing property or No. 3 universal lithium base fat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215095.4A CN103267128B (en) | 2013-06-03 | 2013-06-03 | Chain wheel shaft sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310215095.4A CN103267128B (en) | 2013-06-03 | 2013-06-03 | Chain wheel shaft sealing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267128A CN103267128A (en) | 2013-08-28 |
| CN103267128B true CN103267128B (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310215095.4A Expired - Fee Related CN103267128B (en) | 2013-06-03 | 2013-06-03 | Chain wheel shaft sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103267128B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599786A (en) * | 2014-12-19 | 2015-05-06 | 无锡市士民机械设备厂 | Chain wheel shaft mechanism of looping and enveloping all-in-one machine |
| CN105041882A (en) * | 2015-07-30 | 2015-11-11 | 江苏佰事德炉业有限公司 | Sealing bearing seat |
| CN110067567B (en) * | 2019-06-12 | 2024-06-18 | 厦门厦工中铁重型机械有限公司 | Grease lubrication and injection system and grease lubrication and injection method for shield machine oil |
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| CN101055035A (en) * | 2006-04-15 | 2007-10-17 | 清华大学 | Non-contact sealing structure of rotary gear box |
| JP4831809B2 (en) * | 2005-11-16 | 2011-12-07 | 三菱重工業株式会社 | Shaft seal structure of rotating device for muddy water |
| CN102853083A (en) * | 2012-09-25 | 2013-01-02 | 福田雷沃国际重工股份有限公司 | Mud-prevention sealing device of power head |
| CN102878274A (en) * | 2012-09-28 | 2013-01-16 | 三一重工股份有限公司 | Rotary drilling rig and sealing device of power head case of rotary drilling rig |
| CN102943828A (en) * | 2012-11-26 | 2013-02-27 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission (AMT) braking device |
| CN202790540U (en) * | 2012-09-25 | 2013-03-13 | 福田雷沃国际重工股份有限公司 | Power head mud-prevention sealing device |
| CN202790472U (en) * | 2012-09-29 | 2013-03-13 | 铜陵市得盛机电制品有限责任公司 | Anti-oil-leak bridge type crane speed reducer |
| CN203374802U (en) * | 2013-06-03 | 2014-01-01 | 上海工程机械厂有限公司 | Chain wheel shaft sealing mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5079728B2 (en) * | 2009-03-27 | 2012-11-21 | 株式会社ツバキエマソン | Sealing member retaining structure |
| JP2012197831A (en) * | 2011-03-18 | 2012-10-18 | Aisin Ai Co Ltd | Rotating shaft seal device for vehicular power transmission |
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2013
- 2013-06-03 CN CN201310215095.4A patent/CN103267128B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4831809B2 (en) * | 2005-11-16 | 2011-12-07 | 三菱重工業株式会社 | Shaft seal structure of rotating device for muddy water |
| CN101055035A (en) * | 2006-04-15 | 2007-10-17 | 清华大学 | Non-contact sealing structure of rotary gear box |
| CN102853083A (en) * | 2012-09-25 | 2013-01-02 | 福田雷沃国际重工股份有限公司 | Mud-prevention sealing device of power head |
| CN202790540U (en) * | 2012-09-25 | 2013-03-13 | 福田雷沃国际重工股份有限公司 | Power head mud-prevention sealing device |
| CN102878274A (en) * | 2012-09-28 | 2013-01-16 | 三一重工股份有限公司 | Rotary drilling rig and sealing device of power head case of rotary drilling rig |
| CN202790472U (en) * | 2012-09-29 | 2013-03-13 | 铜陵市得盛机电制品有限责任公司 | Anti-oil-leak bridge type crane speed reducer |
| CN102943828A (en) * | 2012-11-26 | 2013-02-27 | 陕西法士特齿轮有限责任公司 | Automated mechanical transmission (AMT) braking device |
| CN203374802U (en) * | 2013-06-03 | 2014-01-01 | 上海工程机械厂有限公司 | Chain wheel shaft sealing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267128A (en) | 2013-08-28 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Peng Inventor after: Wu Yansong Inventor after: Zhu Jiawei Inventor after: Wang Weidong Inventor after: Wu Guoming Inventor after: Xie Zhaoliang Inventor before: Zhang Peng Inventor before: Wu Yansong Inventor before: Zhu Jiawei |
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Free format text: CORRECT: INVENTOR; FROM: ZHANG PENG WU YANSONG ZHU JIAWEI TO: ZHANG PENG WU YANSONG ZHU JIAWEI WANG WEIDONG WU GUOMING XIE ZHAOLIANG |
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Granted publication date: 20150617 Termination date: 20200603 |
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