CN103267128A - Chain wheel shaft sealing mechanism - Google Patents
Chain wheel shaft sealing mechanism Download PDFInfo
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- CN103267128A CN103267128A CN2013102150954A CN201310215095A CN103267128A CN 103267128 A CN103267128 A CN 103267128A CN 2013102150954 A CN2013102150954 A CN 2013102150954A CN 201310215095 A CN201310215095 A CN 201310215095A CN 103267128 A CN103267128 A CN 103267128A
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- sealing
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- sealing cover
- shaft
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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 worker method, can be widely used in foundation engineering, retaining wall and seepproof screen and build, the wall supporting of foundation ditch hole, the construction of dam reinforcement and soft soil foundation improvement etc.
Background technique
At present, foundation engineering at 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 ditch hole wall, the bay sea wall, in the foundation stabilization of reservoir dam and the engineerings such as improvement of soft soil foundation, because it is low that soil-cement concrete diaphragm wall worker method (being TRD worker's method) has a construction plant height, complete machine stability is good, retaining wall, the body of wall continuity of seepproof screen, the homogenieity height, the body of wall equal thickness does not have seam, core arranges arbitrarily, body of wall vertical precision height, and operating efficiency height, remarkable advantages such as good economy performance find broad application and generally popularization.TRD worker's method is built the principle of concrete diaphragm wall, be the more piece cutting box that cutter is housed on the chain rail joint of chain to be stirred in the digging of TRD slotter insert underground, drive installation between drive sprocket and the driven sprocket and the digging that is positioned on the cutting box side rails stir chain, turn round on one side at cutter, when one edge ground moves as transverse horizontal, spray cutting fluid, soil solidification liquid by cutting in the casing, and with the soil mixing stirring of original position, form equal thickness cement stabilization concrete diaphragm wall.Insert the intensity that cores 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 the O RunddichtringO to combine with the multiple tracks oil sealing usually, its sealing principle are the squeezing actions by Sealing.Digging stir chain over the ground lower groove carry out laterally and during vertical cutting, constantly mud in the cell body is taken out of, contain digging night, consolidation liquid in the mud, influence to O RunddichtringO and oil sealing is very big, being easy to generate wearing and tearing breaks, reduce its sealability greatly, cause on the mud impouring chain wheel drive axle that contains digging night, consolidation liquid and the transmission case inner chamber, cause the bearing, gear, the spline that is connected with gear that are positioned at driveshaft end wearing and tearing to occur, cause the slotter equipment failure, have a strong impact on the working life of equipment, reduce operating efficiency.
Summary of the invention
The objective of the invention is to according to the deficiencies in the prior art, provide a kind of effective raising slotter sprocket shaft sealing and anti-dust performance, 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 end axis bearing with buried bearing and the transmission case of gearwheel, axle with the spline head that separated by axle journal and middle part spline, seal ring with outer ring groove and inner ring groove, first sealing cover with multiple tracks first seal groove and first outward flange, first seal closure, driving sprocket wheel with wheel body and spoke, second seal closure, axle sleeve, the support that has second sealing cover of multiple tracks second seal groove and second outward flange and have the tail bearing seat of buried bearing, it is characterized in that: the spline head of described axle inserts the hole of the gearwheel that is arranged in transmission case, and its axle journal is supported in the end axis bearing by bearing; Described seal ring is set on the axle after in outer ring groove and inner ring groove O type circle and outside framework oil seal being installed respectively, and places in the hole of end axis bearing with the stuffing box bearing rear side; Described first sealing cover is set on the axle after in its first seal groove first oil sealing being installed; Described driving sprocket wheel is loaded on the middle part spline of axle by the inner spline housing of spoke; Described second sealing cover is installed on the axle after installing on the cylindrical that is set in axle sleeve behind second oil sealing in its second seal groove together, and the front-end face that is fixed on the tail bearing seat with screw is with the stuffing box bearing front side; Described the tip of the axis is supported on the tail bearing seat by bearing, and the ear end face of tail bearing seat is installed end cap; Described first seal closure and second seal closure are assembled by two first semicircle covers and two second semicircle cover butt joints respectively, one side of two first semicircle covers is installed on first outward flange of first sealing cover by screw, another side places on the cylindrical step that the left end of spoke arranges, one side of two second semicircle covers is installed in by screw on second outward flange of second sealing cover, and another side places on the cylindrical step that the right-hand member of spoke arranges; Described first seal closure and second seal closure form first toroidal cavity and second toroidal cavity respectively, difference injection pressure lubricating grease in it; Described support is installed in the transmission case outer wall by bolt.
The present invention can be except first oil sealing and second oil sealing are installed respectively, also to fill injection pressure lubricating grease respectively in first seal groove of described first sealing cover and second seal groove of second sealing cover.
The present invention can also be, described pressure grease is No. 2 universal lithium base fat with wear-resisting, waterproof, anti-oxidant and favorable sealing property, No. 3 universal lithium base fat or automobile universal lithium base fat.
Description of drawings
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 among Fig. 2;
Fig. 4 is F portion partial enlarged drawing among Fig. 2;
Fig. 5 is the structural representation of first seal closure in the sprocket shaft sealing mechanism of the present invention;
Fig. 6 is A-A sectional view among Fig. 5;
Fig. 7 is the structural representation of second seal closure in the sprocket shaft sealing mechanism of the present invention;
Fig. 8 is B-B sectional view among Fig. 7.
Embodiment
The present invention is further illustrated below in conjunction with the described embodiment of accompanying drawing.
Shown in Fig. 1-8, a kind of sprocket shaft sealing mechanism, comprise end axis bearing 11 with buried bearing and the transmission case 1 of gearwheel 12, axle 2 with the spline head 21 that separated by axle journal and middle part spline 22, seal ring 3 with outer ring groove 31 and inner ring groove 32, first sealing cover 4 with multiple tracks first seal groove 41 and first outward flange 44, first seal closure 5, driving sprocket wheel 6 with wheel body 61 and spoke 62, second seal closure 7, axle sleeve 8, have second sealing cover 9 of multiple tracks second seal groove 91 and second outward flange 94 and the support 10 with tail bearing seat 101 of buried bearing, it is characterized in that: the hole that the spline head 21 of described axle 2 inserts the gearwheel 12 that is arranged in transmission case 1, its axle journal is supported in the end axis bearing 11 by bearing; Described seal ring 3 is installed respectively in outer ring groove 31 and inner ring groove 32 and is set in behind O type circle 311 and the outside framework oil seal 321 on the axle 2, and places in the hole of end axis bearing 11 with the stuffing box bearing rear side; Described first sealing cover 4 is set on the axle 2 after first oil sealing 411 is installed 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; Described second sealing cover 9 is installed on the axle 2 after installing on the cylindrical that is set in axle sleeve 8 behind second oil sealing 911 in its second seal groove 91 together, and the front-end face that is fixed on tail bearing seat 101 with screw is with the stuffing box bearing front side; The end of described axle 2 is supported on the tail bearing seat 101 by bearing, and the ear end face of tail bearing seat 101 is installed end cap 102; Described first seal closure 5 and second seal closure 7 are assembled by two first semicircle covers 51 and 71 butt joints of two second semicircle covers respectively, one side of two first semicircle covers 51 is installed on first outward flange 44 of first sealing cover 4 by screw, another side places on the cylindrical step that the left end of spoke 62 arranges, one side of two second semicircle covers 71 is installed in by screw on second outward flange 94 of second sealing cover 9, and another side places on the cylindrical step that the right-hand member of spoke 62 arranges; Described first seal closure 5 and second seal closure 7 form first toroidal cavity 55 and second toroidal cavity 75 respectively, can distinguish injection pressure lubricating grease 5775 by the airtight inlet when not opening that arranges on the seal closure cover body in it; Described pressure grease 5775 is No. 2 universal lithium base fat, No. 3 universal lithium base fat or automobile universal lithium base fat, 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 adopting the TRD slotter to carry out the foundation engineering of building, retaining wall and seepproof screen are built, the wall supporting of foundation ditch hole, 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 of spoke 62 left ends that are positioned at driving sprocket wheel 6 and right-hand member setting, two second semicircle covers 71 of two first semicircle covers 51 of first seal closure 5 and second seal closure 7 are screwed respectively on second outward flange 94 of first outward flange 44 that is connected first sealing cover 4 and second sealing cover 9, with screw two first semicircle covers 51 and two second semicircle covers 71 are docked again, first seal closure 5 and second seal closure 7 hold the cylindrical step that arranges to form first toroidal cavity 55 and second toroidal cavity 75 at the spoke about 62 of driving sprocket wheel 6 respectively, with grease gun pressure grease 5775 is injected first toroidal cavity 55 and second toroidal cavity 75 respectively, this pressure grease 5775 is No. 2 universal lithium base fat, No. 3 universal lithium base fat or automobile universal lithium base fat, have wear-resisting, waterproof, the characteristic of anti-oxidant and good seal performance, the mud that brings out in the cell body in the time of the digging chain being moved up and down, dust and sand and moisture are effectively isolated, thereby ensure the sealability of sprocket shaft.The present invention effectively improves sealing and the anti-dust performance of slotter sprocket shaft, guarantees the equipment working stability, prolongs life of equipment, improves the operating efficiency height greatly.
As different from Example 1, except first oil sealing 411 and second oil sealing 911 are installed respectively, also fill injection pressure lubricating grease 5775 respectively in second seal groove 91 of first seal groove 41 of described first sealing cover 4 and second sealing cover 9.
Claims (3)
1. sprocket shaft sealing mechanism, comprise end axis bearing (11) with buried bearing and the transmission case (1) of gearwheel (12), axle (2) with the spline head (21) that separated by axle journal and middle part spline (22), seal ring (3) with outer ring groove (31) and inner ring groove (32), first sealing cover (4) with multiple tracks first seal groove (41) and first outward flange (44), first seal closure (5), driving sprocket wheel (6) with wheel body (61) and spoke (62), second seal closure (7), axle sleeve (8), the support (10) that has second sealing cover (9) of multiple tracks second seal groove (91) and second outward flange (94) and have the tail bearing seat (101) of buried bearing, it is characterized in that: the spline head (21) of described axle (2) inserts the hole of the gearwheel (12) that is arranged in transmission case (1), and its axle journal is supported in the end axis bearing (11) by bearing; Described seal ring (3) is installed respectively in outer ring groove (31) and inner ring groove (32) and is set in behind O type circle (311) and the outside framework oil seal (321) on the axle (2), and places in the hole of end axis bearing (11) with the stuffing box bearing rear side; Described first sealing cover (4) is set on the axle (2) after first oil sealing (411) is installed 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); Described second sealing cover (9) is installed on the axle (2) after installing on the cylindrical that is set in axle sleeve (8) behind second oil sealing (911) in its second seal groove (91) together, and is fixed on the front-end face of tail bearing seat (101) with the stuffing box bearing front side with screw; The end of described axle (2) is supported on the tail bearing seat (101) by bearing, and the ear end face of tail bearing seat (101) is installed end cap (102); Described first seal closure (5) and second seal closure (7) are assembled by two first semicircle covers (51) and two second semicircle covers (71) butt joint respectively, one side of two first semicircle covers (51) is installed on first outward flange (44) of first sealing cover (4) by screw, another side places on the cylindrical step that the left end of spoke (62) arranges, one side of two second semicircle covers (71) is installed in by screw on second outward flange (94) of second sealing cover (9), and another side places on the cylindrical step that the right-hand member of spoke (62) arranges; Described first seal closure (5) and second seal closure (7) form first toroidal cavity (55) and 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 second seal groove (91) of first seal groove (41) of described first sealing cover (4) and second sealing cover (9) except first oil sealing (411) and 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 wear-resisting for having, No. 2 universal lithium base fat of waterproof, anti-oxidant and favorable sealing property, No. 3 universal lithium base fat or automobile 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 true CN103267128A (en) | 2013-08-28 |
| CN103267128B 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 |
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| CN (1) | CN103267128B (en) |
Cited By (2)
| 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 |
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| CN101055035A (en) * | 2006-04-15 | 2007-10-17 | 清华大学 | Non-contact sealing structure of rotary gear box |
| JP2010230104A (en) * | 2009-03-27 | 2010-10-14 | Tsubaki Emerson Co | Come-off preventive structure of sealing member |
| 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 |
| JP2012197831A (en) * | 2011-03-18 | 2012-10-18 | Aisin Ai Co Ltd | Rotating shaft seal device for vehicular power transmission |
| 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 |
-
2013
- 2013-06-03 CN CN201310215095.4A patent/CN103267128B/en not_active Expired - Fee Related
Patent Citations (10)
| 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 |
| JP2010230104A (en) * | 2009-03-27 | 2010-10-14 | Tsubaki Emerson Co | Come-off preventive structure of sealing member |
| JP2012197831A (en) * | 2011-03-18 | 2012-10-18 | Aisin Ai Co Ltd | Rotating shaft seal device for vehicular power transmission |
| 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 |
Cited By (2)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267128B (en) | 2015-06-17 |
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| C53 | Correction of patent of 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 |