CN209939638U - Carrier roller for coal mine - Google Patents
Carrier roller for coal mine Download PDFInfo
- Publication number
- CN209939638U CN209939638U CN201920803308.8U CN201920803308U CN209939638U CN 209939638 U CN209939638 U CN 209939638U CN 201920803308 U CN201920803308 U CN 201920803308U CN 209939638 U CN209939638 U CN 209939638U
- Authority
- CN
- China
- Prior art keywords
- bearing
- roller
- star
- sealing ring
- oil
- 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.)
- Active
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a bearing roller specifically is a colliery is bearing roller for in pit. The roller bearing comprises a roller carrier shaft and a roller skin, wherein bearing seats are arranged at two ends of the roller skin, a bearing is arranged in each bearing seat, the roller carrier shaft is arranged in each bearing, a blocking cover is arranged on the outer side of each bearing seat, a first star-shaped sealing ring and a second star-shaped sealing ring are respectively arranged on two sides of each bearing, and an annular groove structure is arranged on the inner circumference of each blocking cover; the shaft head of the roller carrier shaft is provided with an axial main oil hole and a radial oil distribution hole, the oil distribution hole is communicated with the main oil hole, the oil distribution hole is respectively communicated with the sealing containing cavity of the first star-shaped sealing ring, the sealing containing cavity of the second star-shaped sealing ring and the groove structure, and the main oil hole is communicated with the lubricating device. The lubricating containing cavity is formed between the star-shaped sealing ring and the roller carrier shaft, so that the sealing effect is improved, and the starting condition is improved; lubricating oil is filled into the groove structure of the blocking cover through the end part of the carrier roller shaft, an oil film is formed between the blocking cover and the carrier roller shaft, impurities are prevented from entering the bearing, and therefore the effect of sealing is better achieved.
Description
Technical Field
The utility model relates to a bearing roller specifically is a colliery is bearing roller for in pit.
Background
When the existing belt conveyor carrier roller is used in a coal mine, particularly in water, coal slag and sludge sections, the sealing structure inside the carrier roller is damaged due to the fact that the carrier roller is soaked in the water and the coal slag for a long time, the service life of the carrier roller can only be maintained for about 20 days, and serious influence is brought to production and operation cost.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a colliery is bearing roller for in pit, improves the life of bearing roller.
The utility model provides a its technical problem, the technical scheme of adoption is:
a carrier roller for a coal mine underground comprises a carrier roller shaft and a roller skin, wherein bearing seats are arranged at two ends of the roller skin, a bearing is arranged in each bearing seat, the carrier roller shaft is arranged in each bearing, a blocking cover is arranged on the outer side of each bearing seat, a first star-shaped sealing ring and a second star-shaped sealing ring are respectively arranged on two sides of each bearing, and an annular groove structure is arranged on the inner circumference of each blocking cover; the shaft head of the roller carrier shaft is provided with an axial main oil hole and a radial oil distribution hole, the oil distribution hole is communicated with the main oil hole, the oil distribution hole is respectively communicated with the sealing containing cavity of the first star-shaped sealing ring, the sealing containing cavity of the second star-shaped sealing ring and the groove structure, and the main oil hole is communicated with the lubricating device.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, beneficial effect is:
a lubrication containing cavity is formed between the star-shaped sealing ring and the roller carrier shaft, so that the sealing effect is improved, and the starting condition is improved; lubricating oil is filled into the groove structure of the blocking cover through the end part of the carrier roller shaft, an oil film is formed between the blocking cover and the carrier roller shaft, impurities are prevented from entering the bearing, and therefore the effect of sealing is better achieved.
Further, the utility model discloses an optimization scheme is:
the lubricating device comprises an oil cup and a pipeline, the bottom of the oil cup is communicated with the main oil hole through the pipeline, and the bottom of the oil cup is higher than the central line of the carrier roller shaft.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a sectional view A-A of this FIG. 1;
figure 3 is a schematic view of an end of a idler;
FIG. 4 is a schematic view of the star seal ring coupled to the carrier roller shaft;
FIG. 5 is a schematic view of the connection of the retaining cap to the carrier roller shaft;
in the figure, a blocking cover 1; a groove structure 1-1; an O-shaped ring 2; a bearing seat 3; a bearing 4; a first star-shaped seal ring 5; a lubrication containing cavity 5-1; a roller skin 6; a carrier roller shaft 7; a main oil hole 7-1; oil distributing holes 7-2; a pipe joint 8; an oil cup 9; a second star-shaped seal ring 10; idler cradle 11.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1, the carrier roller for the underground coal mine according to the embodiment is composed of a blocking cover 1, an O-shaped ring 2, a bearing seat 3, a bearing 4, a first star-shaped sealing ring 5, a roller skin 6, a carrier roller shaft 7, a pipe joint 8, an oil cup 9 and a second star-shaped sealing ring 10. The roller skin 6 is the pipe form, and the inboard of roller skin 6 both ends is welded respectively has bearing frame 3, and bearing frame 3 mid-mounting bearing 4, bearing 4 are the sealed bearing that has sealed lid in both sides. The carrier roller shaft 7 is axially arranged at the inner rings of the bearings 4 at the two ends of the roller skin 6, the blocking cover 1 is arranged at the outer side of the bearing seat 3, an annular groove structure 1-1 (shown in figure 5) is processed at the inner circumference of the blocking cover 1, the gap between the inner circumference of the blocking cover 1 and the carrier roller shaft 7 is 0.1mm, an O-shaped ring 2 is arranged between the bearing seat 3 and the blocking cover 1, the blocking cover 1 extends out of the two ends of the carrier roller shaft 7, and the two ends of the carrier roller shaft 7 are arranged on the carrier roller support 11 (shown in figures 2 and 3).
A first star-shaped sealing ring 5 is arranged on the inner side of the bearing 4, a second star-shaped sealing ring 10 is arranged on the outer side of the bearing 4, the second star-shaped sealing ring 10 is arranged in a groove on the inner side surface of the blocking cover 1, and lips on two sides of the first star-shaped sealing ring 5 and the second star-shaped sealing ring 10 are respectively contacted with the roller carrier shaft 7. An axial main oil hole 7-1 and three radial oil distributing holes 7-2 are processed in a shaft head of the carrier roller shaft 7, the oil distributing holes 7-2 are communicated with the main oil hole 7-1, the three oil distributing holes 7-1 are respectively communicated with a sealing containing cavity of the first star-shaped sealing ring 5, a sealing containing cavity of the second star-shaped sealing ring 10 and a groove structure 1-1, the end part of the main oil hole 7-1 is communicated with a lubricating device, and the sealing containing cavity of the first star-shaped sealing ring 5 and the sealing containing cavity of the second star-shaped sealing ring 10 form a lubricating containing cavity 5-1 (shown in figures 3 and 4). In the embodiment, the lubricating device is composed of a pipe joint 8 and an oil cup 9, the bottom of the oil cup 9 is communicated with the main oil hole 7-1 through the pipe joint 8, the bottom of the oil cup 9 is 50 mm higher than the center line of the roller carrier shaft 7 to generate pressure, a certain amount of lubricating oil is stored in the oil cup 9, and the lubricating oil is always filled into the roller carrier shaft 7.
The star-shaped sealing ring has the structural characteristics that four sealing lips are adopted, the friction force is small, the cross section shape of the star-shaped sealing ring can enable the pressure to be transmitted uniformly in all aspects, and a good sealing effect is achieved; and a lubrication containing cavity is formed between the bearing roller shaft and the bearing roller shaft, so that the starting condition is improved. A gap of 0.1mm is formed between the baffle cover 1 at the outer side of the carrier roller and the carrier roller shaft 7, and when the coal cinder is larger than 0.1mm, the gap can be effectively blocked to prevent the coal cinder from entering the sealed interior of the carrier roller; when impurities such as water, coal slag and the like are less than 0.1mm, lubricating oil is filled in the shaft head oil cup 9 to form a layer of oil film in a gap of 0.1mm, and the impurities less than 0.1mm are blocked from entering the inside of the carrier roller seal by the oil film generated by rotation. The groove structure 1-1 of the baffle cover 1 is filled with lubricating oil through the shaft end part to effectively clean the oil duct, and supplements and pressurizes the lubricating oil, thereby better playing a role in sealing. The separation methods are matched to reduce the friction force of the carrier roller, so that impurities such as sewage, coal slag and the like are 100% separated from entering the interior of the carrier roller for sealing.
The utility model has reasonable structure, stable performance and small rotation resistance; the service life of the carrier roller is effectively prolonged; when the carrier roller is replaced after the service life is over, the carrier roller needs to be stopped, the service life of the carrier roller is prolonged, the number of times of stopping is reduced, and the yield is increased; meanwhile, the manufacturing cost and the maintenance cost of the carrier roller can be saved, and 9 plays a real role in cost reduction and efficiency improvement.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (2)
1. The utility model provides a colliery is bearing roller for pit, includes bearing roller axle, roller skin, and the both ends of roller skin are equipped with the bearing frame, and the bearing is installed in the bearing frame, and the bearing roller axle is installed in the bearing, and the outside installation of bearing frame keeps off lid, its characterized in that: a first star-shaped sealing ring and a second star-shaped sealing ring are respectively arranged on two sides of the bearing, and an annular groove structure is arranged on the inner circumference of the blocking cover; the shaft head of the roller carrier shaft is provided with an axial main oil hole and a radial oil distribution hole, the oil distribution hole is communicated with the main oil hole, the oil distribution hole is respectively communicated with the sealing containing cavity of the first star-shaped sealing ring, the sealing containing cavity of the second star-shaped sealing ring and the groove structure, and the main oil hole is communicated with the lubricating device.
2. The roller for the underground coal mine according to claim 1, wherein: the lubricating device comprises an oil cup and a pipeline, the bottom of the oil cup is communicated with the main oil hole through the pipeline, and the bottom of the oil cup is higher than the central line of the carrier roller shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803308.8U CN209939638U (en) | 2019-05-30 | 2019-05-30 | Carrier roller for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920803308.8U CN209939638U (en) | 2019-05-30 | 2019-05-30 | Carrier roller for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209939638U true CN209939638U (en) | 2020-01-14 |
Family
ID=69134882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920803308.8U Active CN209939638U (en) | 2019-05-30 | 2019-05-30 | Carrier roller for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209939638U (en) |
-
2019
- 2019-05-30 CN CN201920803308.8U patent/CN209939638U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204647014U (en) | A kind of inner chamber and the internal diameter Novel double-row tapered roller bearing all with sealing | |
| CN105317928A (en) | Lubricating and sealing structure of step chain | |
| CN103032571A (en) | Bearing combined sealing device of powder concentrator | |
| CN209939638U (en) | Carrier roller for coal mine | |
| CN203098796U (en) | Seal lubrication structure of sprocket inner bearing | |
| CN201808913U (en) | Improved structure of friction aligning carrier roller | |
| CN201819544U (en) | Sealing device for jockey pulley bearing pack of rotary kiln | |
| CN201190681Y (en) | Integral bearing housing for oil lubrication blower fan | |
| CN202272465U (en) | Carrying roller sealing structure | |
| CN202272466U (en) | Sealing device of bearing in belt conveyer supporting roller | |
| CN203975840U (en) | High-mechanic load waterproof carrier roller sealing arrangement | |
| CN205383190U (en) | Gyro wheel bearing of strap bolt axle | |
| CN204458821U (en) | Novel double-row deep groove ball bearing | |
| CN202379420U (en) | Drainage seal with double oil storage chambers | |
| CN208308386U (en) | The good envelope winding up roller wheel of lubricating action and the flange balance staff device for being equipped with envelope winding up roller wheel | |
| CN202089691U (en) | Maintenance-free riding wheel of crawling crane | |
| CN202012565U (en) | Integral sealed double-row TRB (tapered roller bearing) | |
| CN201651040U (en) | Bearing with iron space ring | |
| CN215853350U (en) | Novel carrier roller sealing structure | |
| CN216241827U (en) | High-efficient heat dissipation type clutch bearing ring | |
| CN201980722U (en) | Contact-type sealing nylon carrier roller | |
| CN204226429U (en) | Bearing type on shearer walk gear | |
| CN201647602U (en) | Full-enclosed maintenance-free carrier roller | |
| CN212899716U (en) | Mechanical sealing device for split type rotating machine bearing bush | |
| CN204606942U (en) | The two-way labyrinth type sealing ring of a kind of Idler bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |