CN205315704U - Coal -winning machine planetary mechanism floating oil seal structure - Google Patents
Coal -winning machine planetary mechanism floating oil seal structure Download PDFInfo
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- CN205315704U CN205315704U CN201521067183.5U CN201521067183U CN205315704U CN 205315704 U CN205315704 U CN 205315704U CN 201521067183 U CN201521067183 U CN 201521067183U CN 205315704 U CN205315704 U CN 205315704U
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- oil seal
- float grease
- grease seal
- seat
- floating oil
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Abstract
The utility model relates to a coal -winning machine planetary mechanism floating oil seal structure, include: fix the quiet ring of floating oil seal of floating oil seal rotating ring and the floating oil seal rotating ring butt joint on roller seat, the quiet ring of floating oil seal is fixed on the floating oil seal seat, and quiet ring oil blanket seat of floating oil seal and second grade planetary mechanism output shaft bearing fixed connection, the quiet ring oil blanket seat of floating oil seal be the annular, and h is measured for design height H with the attenuate to the size of two annular terminal surfaces, and the attenuate is measured h and is one of 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm. The utility model discloses a series of variable thickness floating oil seal seats through the thickness that reduces quiet ring floating oil seal seat, apart from reducing the problem between roller seat that the wearing and tearing that have compensated two planetary mechanism led to the fact and the quiet ring oil blanket seat, makes the decrement of two O type sealing washers lie in the prescribed limit, has solved floating oil seal's oil leak problem, has saved the time that the accident influences, has improved maintenance efficiency, has reduced equipment cost.
Description
Technical field
The utility model relates to a kind of coal-winning machine planetary mechanism float grease seal structure, is a kind of frame for movement, is a kind of structure for the lubricated rocking arm planetary reduction gear sealing of coal-winning machine.
Background technology
At present, the rocking arm of coal-winning machine (being cutting units), by Motor Drive, after the deceleration of secondary spur gear, double-planet slow down, passes to cutting drum by power, drives cutting drum to rotate coal cutting and coaling, and it is the groundwork mechanism of coal-winning machine. The double-planet reducing gear of rocking arm inside is the afterbody gear drive of cutting units, is connected in series by two planetary reducers. For preventing that coal dust from entering planetary mechanism and lubricating oil leaks, between roller seat (square flange) and seal receptacle, Floating End Face Seal is installed, it is equipped with two resistant to elevated temperatures RUBBER O RunddichtringOs by two symmetrical sealing rings and forms. A sealing ring (stationary ring) is connected with seal receptacle by O RunddichtringO, and another sealing ring (rotating ring) is connected with drum shaft. Two loop contacts end faces are sliding sealing surface, and the axial force of the compressed rear generation of O RunddichtringO impels two rings mutually to compress, and form sealing, avoid the leakage of lubricating oil and entering of coal dust.
Along with the increase of service life, in double-planet mechanism, the wearing and tearing of each part axial size increase, again due to the accumulation of each Assembly part axial dimension wear extent, cause the radial dimension after float grease seal installation between float grease seal seat to diminish, float grease seal O RunddichtringO decrement increases, the stressed increase of float grease seal. Along with the continuation of wear extent increases, the stressed continuation of float grease seal increases, and when stressed, while exceeding float grease seal limiting value, float grease seal wearing and tearing are accelerated, temperature rise increases, the aging acceleration of O RunddichtringO, and float grease seal useful life reduces greatly. When wear extent transfinites, be float grease seal install after radial dimension too small, O RunddichtringO decrement is excessive, even if change continuously float grease seal, the use of new float grease seal is often all no more than 1 month, and violent oil leakage phenomenon will occur, and must change double-planet mechanism, carry out wear extent repairing, just can avoid the generation of oil leakage phenomenon.
Summary of the invention
In order to overcome the problem of prior art, the utility model proposes a kind of coal-winning machine planetary mechanism float grease seal structure. Described oil seal seat uses a series of Varying-thickness float grease seal seat, has realized the compensation to wearing and tearing, has avoided leakage of oil.
The purpose of this utility model is achieved in that a kind of coal-winning machine planetary mechanism float grease seal structure, comprise: the float grease seal stationary ring that is fixed on the float grease seal rotating ring on roller seat and docks with described float grease seal rotating ring, described float grease seal stationary ring is fixed on float grease seal seat, described float grease seal stationary ring oil seal seat is fixedly connected with secondary planet mechanism output shaft bearing, described float grease seal stationary ring oil seal seat is annular, two end faces of described annular are of a size of design height H and add attenuate amount h, described attenuate amount h is 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, one of 3mm.
Further, on an annular end face of described float grease seal stationary ring oil seal seat, float grease seal rotating ring is installed, another end face being fixedly connected with secondary planet mechanism output shaft bearing is attenuate face.
Further, on described float grease seal stationary ring and float grease seal rotating ring, be respectively equipped with O-ring seals.
The beneficial effect that the utility model produces is: the utility model adopts a series of Varying-thickness float grease seal seat, by reducing the thickness of stationary ring float grease seal seat, compensate distance between roller seat that the wearing and tearing of double-planet mechanism cause and stationary ring oil seal seat and reduced problem, make the decrement of two O RunddichtringOs be positioned at prescribed limit, solve the Leakage of float grease seal, save the time of accident impact, greatly improved overhaul efficiency, reduced greatly equipment cost.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is that oil enveloping structure is arranged on the schematic diagram on planetary mechanism described in embodiment mono-of the present utility model;
Fig. 2 is oil enveloping structure schematic diagram described in embodiment mono-of the present utility model;
Fig. 3 is the structural representation of oil sealing described in embodiment mono-of the present utility model, is that A in Fig. 2 is to view.
Detailed description of the invention
Embodiment mono-:
The present embodiment is a kind of coal-winning machine planetary mechanism float grease seal structure, as shown in Figure 1, 2, 3. The present embodiment comprises: the float grease seal stationary ring 3 that is fixed on the float grease seal rotating ring 2 on roller seat and docks with described float grease seal rotating ring, described float grease seal stationary ring is fixed on float grease seal seat 4, described float grease seal stationary ring oil seal seat is fixedly connected with secondary planet mechanism output shaft bearing 1, described float grease seal stationary ring oil seal seat is annular, two end faces of described annular are of a size of design height H and add attenuate amount h, and described attenuate amount h is one of 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm.
The installation site of float grease seal stationary ring and float grease seal rotating ring as shown in Figure 2. Float grease seal rotating ring is arranged on roller seat, and float grease seal stationary ring is arranged on float grease seal stationary ring oil seal seat, and float grease seal stationary ring oil seal seat is bolted on the bearing block of secondary planet output shaft. Float grease seal stationary ring is two annular element that diameter is identical with float grease seal rotating ring, two each own end faces of part, and plane contact between these two end faces, forms level and smooth sealing contact surface. Because two parts are arranged on respectively on two parts of relative motion, therefore, two part relative motions at work, but owing to being plane contact, can prevent passing through of lubricating oil. O type circle 201 is set on the ring outer surface of two parts, 301(is shown in Fig. 2), O type circle seals the outer surface of ring with the part that contacts is installed, be the outflow in order to prevent lubricating oil equally.
On roller seat, be specially provided with the cannelure that float grease seal rotating ring is installed, float grease seal rotating ring can be directly installed on roller seat. Float grease seal stationary ring is to be arranged on the bearing block of secondary planet mechanism output shaft by float grease seal stationary ring oil seal seat. At work, because the decrement of two O RunddichtringOs is determined by the distance between float grease seal stationary ring oil seal seat and roller seat, along with production and application, the in-house part axial size wearing and tearing of secondary double-planet increase, when cylinder axially loaded, between roller seat and float grease seal stationary ring oil seal seat, distance reduces, and causes the decrement of two O RunddichtringOs to increase. By reducing the thickness of float grease seal stationary ring oil seal seat, compensate distance between roller seat that the wearing and tearing of double-planet mechanism cause and float grease seal stationary ring oil seal seat and reduced problem, the decrement of two O RunddichtringOs is controlled in prescribed limit, solve the Leakage of float grease seal, save the time of accident impact, greatly improve overhaul efficiency, reduced greatly equipment cost.
Therefore, the present embodiment is provided with a series of float grease seal stationary ring oil seal seat. Float grease seal stationary ring oil seal seat is ring-shaped work pieces, and part has two end faces and inside and outside anchor ring, and one of them end face arranges the cannelure that float grease seal stationary ring is installed, and another end face contacts with the bearing block of secondary planet mechanism output shaft, forms fixing contact-making surface. Distance between two end faces arranges attenuate amount, and the distance between two end faces is H, reduces certain amount h on the basis of H, and h is attenuate amount, as shown in Figure 1.
For the wearing and tearing at work of adaptation equipment, and easy to process, reducing costs, the present embodiment is provided with a series of attenuate amount: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, can form a series of float grease seal stationary ring oil seal seat.
Attenuate amount can be arranged on float grease seal stationary ring oil seal seat and not install on the end face of float grease seal stationary ring, also can be arranged on the end face that float grease seal stationary ring is installed, but cost will be very high like this.
For making to seal between float grease seal rotating ring and float grease seal stationary ring and the parts of installation, can take the sealing of O type circle, also can take the sealing ring of other shapes.
Embodiment bis-:
The present embodiment is the improvement of embodiment mono-, is the refinement of embodiment mono-about float grease seal stationary ring oil seal seat. On an end face of the float grease seal stationary ring oil seal seat described in the present embodiment, float grease seal stationary ring is installed, another end face being fixedly connected with secondary planet mechanism output shaft bearing is attenuate face.
The end face of selecting float grease seal stationary ring oil seal seat to be fixedly connected with secondary planet mechanism output shaft bearing is that attenuate face can be processed very easily, can directly float grease seal stationary ring oil seal seat be fixed on magnechuck on the workbench of plain grinding and carry out grinding, reduce processing cost.
Embodiment tri-:
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about float grease seal stationary ring and float grease seal rotating ring, on the float grease seal stationary ring described in the present embodiment and float grease seal rotating ring, is respectively equipped with O-ring seals.
O type circle is a kind of very general sealing device, can be arranged on very easily in cannelure, and cannelure cost easy to process is low.
Finally it should be noted that, below only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred arrangement scheme, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model (such as shape, the form of sealing etc. of float grease seal stationary ring oil seal seat), and not depart from the spirit and scope of technical solutions of the utility model.
Claims (3)
1. a coal-winning machine planetary mechanism float grease seal structure, comprise: the float grease seal stationary ring that is fixed on the float grease seal rotating ring on roller seat and docks with described float grease seal rotating ring, described float grease seal stationary ring is fixed on float grease seal seat, described float grease seal stationary ring oil seal seat is fixedly connected with secondary planet mechanism output shaft bearing, it is characterized in that, described float grease seal stationary ring oil seal seat is annular, two end faces of described annular are of a size of design height H and add attenuate amount h, described attenuate amount h is 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, one of 3mm.
2. oil enveloping structure according to claim 1, is characterized in that, on an annular end face of described float grease seal stationary ring oil seal seat, float grease seal rotating ring is installed, and another end face being fixedly connected with secondary planet mechanism output shaft bearing is attenuate face.
3. oil enveloping structure according to claim 1 and 2, is characterized in that, on described float grease seal stationary ring and float grease seal rotating ring, is respectively equipped with O-ring seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067183.5U CN205315704U (en) | 2015-12-21 | 2015-12-21 | Coal -winning machine planetary mechanism floating oil seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521067183.5U CN205315704U (en) | 2015-12-21 | 2015-12-21 | Coal -winning machine planetary mechanism floating oil seal structure |
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| Publication Number | Publication Date |
|---|---|
| CN205315704U true CN205315704U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521067183.5U Active CN205315704U (en) | 2015-12-21 | 2015-12-21 | Coal -winning machine planetary mechanism floating oil seal structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067859A (en) * | 2019-04-08 | 2019-07-30 | 浙江万里扬新能源驱动科技有限公司 | A kind of floating type rotation axis seal structure of stable type |
| CN111411958A (en) * | 2020-03-30 | 2020-07-14 | 太重煤机有限公司 | Coal mining machine planetary mechanism |
-
2015
- 2015-12-21 CN CN201521067183.5U patent/CN205315704U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067859A (en) * | 2019-04-08 | 2019-07-30 | 浙江万里扬新能源驱动科技有限公司 | A kind of floating type rotation axis seal structure of stable type |
| CN110067859B (en) * | 2019-04-08 | 2024-04-23 | 浙江万里扬新能源驱动科技有限公司 | Stable floating type rotary shaft sealing structure |
| CN111411958A (en) * | 2020-03-30 | 2020-07-14 | 太重煤机有限公司 | Coal mining machine planetary mechanism |
| CN111411958B (en) * | 2020-03-30 | 2022-05-10 | 太重煤机有限公司 | Coal mining machine planetary mechanism |
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