CN107630931B - Tail wheel transmission bearing device of bucket elevator - Google Patents
Tail wheel transmission bearing device of bucket elevator Download PDFInfo
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- CN107630931B CN107630931B CN201711055905.9A CN201711055905A CN107630931B CN 107630931 B CN107630931 B CN 107630931B CN 201711055905 A CN201711055905 A CN 201711055905A CN 107630931 B CN107630931 B CN 107630931B
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- sealing
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- bearing seat
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 120
- 239000000428 dust Substances 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
- 239000003566 sealing material Substances 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The tail wheel transmission bearing device of the bucket elevator comprises a gas sealing device of a transmission bearing and a dust leakage detection device; the gas sealing device of the transmission bearing comprises a transmission shaft, a bearing seat, a sealing sleeve, an inner sleeve, a sealing plate, a fixed flange and a fixing frame, wherein the two ends of the transmission shaft are fixedly connected with the bearing, the bearing seat is arranged outside the bearing, the end of the bearing seat is provided with the sealing cover which is fixedly connected with the bearing seat through a bolt, the upper part of the bearing seat is provided with an oil filling nozzle, a temperature sensor and an adjusting screw rod, the lower part of the bearing seat is provided with an oil discharging cup and a tension screw rod, and the bearing seat is fixedly connected with the sealing sleeve through the flange by using the bolt; the dust leakage detection device comprises a sealing shell, dust detection equipment and an observation cup, wherein the sealing shell is fixedly connected with the bucket elevator shell and is connected with the tail of the drain pipe, the dust detection equipment is arranged in the sealing shell, gas sealing is achieved, and the defect that a sealing material is severely abraded and deformed in a short time due to the fact that a gap between a main shaft of the tail transmission device and a sealing sleeve cannot be kept in a fixed state is overcome.
Description
Technical Field
The invention relates to a tail wheel transmission bearing device of a bucket elevator, which is applied to industry.
Background
The bucket elevator is also widely applied in the industrial field, the gap between the main shaft of the tail transmission device and the sealing sleeve cannot be kept in a fixed state in actual operation, the sealing material is severely abraded and deformed in a short time, dust enters the sealing sleeve to rub together with the sealing material to cause damage to the main shaft and damage to the bearing, the phenomenon of locking the bearing and the main shaft is very common, and particularly, people cannot effectively detect and identify the damage of the sealing material and the problem of sealing leakage. Personnel need to regularly check the running condition and the sealing condition of the bearing, the abrasion condition of the sealing material cannot be known exactly, maintenance personnel can only replace the sealing material and the bearing regularly, waste of manpower and material resources is caused, normal utilization rate of equipment parts cannot be effectively exerted, and maintenance cost is increased.
Therefore, some solutions are also provided, the technical scheme solves the problem that the bearing of the tail wheel transmission shaft of the bucket elevator is difficult to seal at present, but the combination of gas sealing and material sealing cannot effectively overcome the phenomenon that the gap between the transmission shaft and the sealing sleeve cannot be kept in a fixed state, so that the abrasion of sealing materials is accelerated, and meanwhile, on the flow of a drain pipe, the setting requirement is that the flow of the drain pipe is controlled to a certain degree manually, so that automatic control cannot be realized; secondly, set up the observation utensil when foreign matter excretes, solved the problem of observing sealing material's leakage to a certain extent, but can't realize automatic monitoring sealing leakage.
Disclosure of Invention
The invention aims at solving the problems, and provides a bucket elevator tail wheel transmission bearing device, which adopts a scheme of sealing a bearing by adopting gas with certain pressure, solves the technical defects of sealing and dust leakage detection of the existing bucket elevator tail wheel transmission bearing, facilitates equipment operation monitoring and provides a basis for intelligent operation.
The invention adopts the following technical scheme: the tail wheel transmission bearing device of the bucket elevator comprises a gas sealing device of a transmission bearing and a dust leakage detection device, wherein the gas sealing device of the transmission bearing comprises a transmission shaft, a bearing seat, a sealing sleeve, an inner sleeve, a sealing plate, a fixed flange and a fixing frame; a sealing connection flange is arranged between the flange of the bearing seat and the end flange of the sealing sleeve, and the sealing connection flange is larger than the flange of the bearing seat; the sealing sleeve is arranged as a short joint with flanges at two ends, wherein the flange at the front end of the sealing sleeve, the flange of the inner sleeve and the fixing frame are fixedly connected through bolts, the fixing frame is fixed at the upper part of the sealing sleeve, and the fixing frame is used for fixing the sealing sleeves at two ends of the transmission shaft; the flange, the sealing plate and the fixing flange of the inner sleeve are fixedly connected through bolts, a certain gap is reserved between the sealing plate and the transmission shaft, and the space between the sealing sleeve and the inner sleeve is an air chamber.
The upper part of the tail end of the sealing sleeve is provided with an air inlet pipe, the lower part of the other end of the sealing sleeve is provided with a drain pipe, and the air inlet pipe and the drain pipe are flexible telescopic pipes.
The air pressure of the air inlet pipe is set to 3000pa to 15000pa, and the air source is oil-free, water-free and dust-free.
The inner sleeve is a U-shaped hollow cylinder with flanges at the front end, the side wall contacted with the sealing sleeve is an outer side wall, the other side wall is an inner side wall, the middle of the outer side wall is an opening part, the middle part of the inner sleeve is provided with an exhaust chamber, the lower part of the exhaust chamber is communicated with the drain pipe, and the inner side wall of the inner sleeve and the transmission shaft are provided with air passages.
At least one rectangular exhaust port is arranged at the lower part of the inner side wall.
The gas of the air chamber prevents dust of the air passage from entering, and simultaneously prevents lubricating grease of the bearing seat from entering the air chamber.
The dust leakage detection device comprises a sealing shell, dust detection equipment and an observation cup, wherein the sealing shell is fixedly connected with the bucket elevator shell and is connected with the tail of the drain pipe, the dust detection equipment is arranged in the sealing shell, the observation cup is made of transparent materials, and the observation cup can clearly see the state of dust leakage.
The bottom of observation cup sets up the escape orifice, and the inside of escape orifice sets up the filter core, and the filter core is ventilative material, and the end of escape orifice sets up the valve, and the flow size of valve control excretory gas.
The filter element in the drain port filters dust in the drain gas, and dust detection equipment detects that the dust concentration reaches a certain value and sets a dust leakage alarm signal.
Compared with the prior art, the invention has the following advantages:
the transmission bearing of the tail wheel of the bucket elevator realizes gas sealing, eliminates the phenomenon that a sealing material is severely damaged and deformed in a short time due to the fact that a gap between a main shaft of the tail transmission device and the sealing sleeve cannot be kept in a fixed state, and dust enters the sealing sleeve to rub together with the sealing material to damage the main shaft and the bearing, and ensures the safe operation of the tail wheel of the bucket elevator to the maximum extent.
And 2, a dust leakage detection device is added, so that the purpose of automatically monitoring dust leakage is realized, and the purpose of conveniently observing the dust leakage state on site by manpower is also realized.
And thirdly, the working range of inspection staff and maintenance staff in the operation of the bucket elevator is fundamentally changed, and the labor efficiency and the equipment utilization rate are improved from blind judgment of the sealing state to accurate judgment of sealing leakage.
Drawings
Fig. 1 is a schematic cross-sectional view of the structure of an embodiment of the present invention.
FIG. 2 is a cross-sectional view A-A of FIG. 1 in accordance with an embodiment of the present invention.
Fig. 3 is a view in the B direction of fig. 1 in accordance with an embodiment of the present invention.
The marks in the figure: 1. the device comprises a transmission shaft, 2, a bearing, 3, a bearing seat, 4, a sealing sleeve, 5, an inner sleeve, 6, a fixing frame, 7, a sealing cover, 8, a temperature sensor, 9, an oil filling nozzle, 10, an oil discharging cup, 11, an adjusting screw, 12, a tension screw, 13, a sealing connecting flange, 14, an air inlet pipe, 15, a rectangular air outlet, 16, an inner side wall, 17, an outer side wall, 18, an air passage, 19, an air exhaust chamber, 20, a sealing plate, 21, a fixing flange, 22, an exhaust pipe, 23, a sealing shell, 24, dust detection equipment, 25, an observation cup, 26, an exhaust port, 27, a filter element, 28, a valve, 29 and an air chamber.
Detailed Description
The following describes a specific embodiment of the present invention with reference to the accompanying drawings, and as shown in fig. 1, fig. 2 and fig. 3, the technical scheme adopted by the present invention is as follows: the tail wheel transmission bearing device of the bucket elevator comprises a gas sealing device of a transmission bearing and a dust leakage detection device, wherein the gas sealing device of the transmission bearing comprises a transmission shaft 1, a bearing 2, a bearing seat 3, a sealing sleeve 4, an inner sleeve 5, a sealing plate 20, a fixing flange 21 and a fixing frame 6, and is characterized in that: the two ends of the transmission shaft 1 are fixedly connected with a bearing 2, a bearing seat 3 is arranged outside the bearing 2, a sealing cover 7 is arranged at the tail end of the bearing seat 3, the sealing cover 7 is fixedly connected with the bearing seat 3 through bolts, an oil filling nozzle 9, a temperature sensor 8 and an adjusting screw 11 are arranged at the upper part of the bearing seat 3, an oil draining cup 10 and a tension screw 12 are arranged at the lower part of the bearing seat, the bearing seat 3 is fixedly connected with a sealing sleeve 4 through bolts, a flange is arranged on the bearing seat, a sealing connecting flange 13 is arranged between the flange of the bearing seat 3 and the tail end flange of the sealing sleeve 4, the sealing connecting flange 13 is larger than the flange of the bearing seat 3, and the sealing connecting flange 13 is fixedly connected with a sealing material of a tail wheel sealing shell of the bucket elevator; the sealing sleeve 4 is arranged as a short joint with flanges at two ends, the flange at the front end of the sealing sleeve, the flange of the inner sleeve 5 and the fixing frame 6 are fixedly connected through bolts, the fixing frame 6 is fixed at the upper part of the sealing sleeve 4, the fixing frame 6 is used for fixing the sealing sleeve 4 at two ends of the transmission shaft 1, the upper part of the tail end of the sealing sleeve 4 is provided with an air inlet pipe 14, the lower part of the other end is provided with a drain pipe 22, the air inlet pipe 14 and the drain pipe 22 are flexible telescopic pipes, the air pressure of the air inlet pipe 14 is 3000pa to 15000pa, and the air source is oil-free, water-free and dust-free air; the flange of the inner sleeve 5, the sealing plate 20 and the fixed flange 21 are fixedly connected through bolts, a certain gap is reserved between the sealing plate 20 and the transmission shaft 1, and the space between the sealing sleeve 4 and the inner sleeve 5 is an air chamber 29; the inner sleeve 5 is a U-shaped hollow cylinder with two side walls, the front end of the U-shaped hollow cylinder is provided with a flange, the side wall which is in contact with the sealing sleeve 4 is an outer side wall 17, the other side wall is an inner side wall 16, the lower part of the inner side wall 16 is provided with at least one rectangular exhaust port 15, the middle of the outer side wall 17 is an opening part, the middle part of the inner sleeve 5 is provided with an exhaust chamber 19, the lower part of the exhaust chamber 19 is communicated with a drain pipe 22, and an air passage 18 is arranged between the inner side wall 16 of the inner sleeve 5 and the space of the transmission shaft 1; the gas of the gas chamber 29 prevents on the one hand dust from entering the gas channel 18 and at the same time grease from the bearing housing 3 from entering the gas chamber 29.
The dust leakage detection device comprises a sealing shell 23, dust detection equipment 24 and an observation cup 25, wherein the sealing shell 23 is fixedly connected with a bucket elevator shell and is connected with the tail of a drain pipe 22, the dust detection equipment 24 is arranged in the sealing shell 23, the observation cup 25 is arranged at the lower part of the sealing shell 23, the observation cup 25 is made of transparent materials, the observation cup 25 can clearly see the dust leakage state, a drain port 26 is arranged at the bottom of the observation cup 25, a filter element 27 is arranged in the drain port 26, the filter element 27 is made of breathable materials, a valve 28 is arranged at the tail end of the drain port 26, the valve 28 controls the flow of drain gas, the filter element 27 in the drain port 26 filters dust in the drain gas, and the dust leakage alarm signal is set when the dust detection equipment 24 detects that the dust concentration reaches a certain value.
The specific working process of the embodiment of the invention comprises the following steps: firstly, opening the gas of the gas inlet pipe 14 to enter the corresponding air chamber 29, starting the bucket elevator to operate, rotating the tail wheel transmission shaft 1, enabling the gas in the sealing sleeve 4 to enter the air channel 18 from the air chamber 29, discharging part of the gas in the air channel 18 to the inside of the sealing shell of the tail wheel of the bucket elevator through the gap between the sealing plate 20 and the transmission shaft 1, simultaneously preventing dust from entering the inside of the air channel 18, enabling the other part of the gas in the air channel 18 to enter the exhaust chamber 19 from the rectangular exhaust port 15, enabling the gas in the exhaust chamber 19 to enter the exhaust pipe 22 again, enabling the gas in the exhaust pipe 22 to enter the inside of the sealing shell 23, enabling the dust detection equipment 24 to start detecting, enabling the discharged gas in the sealing shell 23 to enter the inside of the observation cup 25, filtering the gas passing through the filter element 27, and then discharging the gas from the valve 28; if the sealing plate 20 is damaged or part of dust adhered to the transmission shaft 1 enters the air passage 18, because the air in the air passage 18 and the air pressure of the rectangular air outlet 15 have certain pressure difference fluctuation, part of dust falls off from the rotating transmission shaft 1 to enter the sealing shell 23 and the observation cup 25 under the pressure difference fluctuation force, under the action of the filter element 27, when the dust in the exhaust gas in the sealing shell 23 and the observation cup 25 reaches a specified value, the dust detection equipment 24 starts to give an alarm, and an operator can clearly see the state of the dust in the observation cup 25 to complete the procedure of automatically detecting the dust sealing leakage, and the maintenance operator should check the state of the sealing plate 20 and clean the dust on the transmission shaft in time.
The foregoing is merely one specific embodiment of the present invention, and the scope of the present invention is not limited thereto, and any equivalent transformation based on the technical solution of the present invention falls within the scope of the present invention.
Claims (5)
1. The tail wheel transmission bearing device of the bucket elevator is characterized in that: the dust leakage detection device comprises a gas sealing device of a transmission bearing and a dust leakage detection device, wherein the gas sealing device of the transmission bearing comprises a transmission shaft (1), a bearing (2), a bearing seat (3), a sealing sleeve (4), an inner sleeve (5), a sealing plate (20), a fixing flange (21) and a fixing frame (6); the two ends of the transmission shaft (1) are fixedly connected with a bearing (2), a bearing seat (3) is arranged outside the bearing (2), a sealing cover (7) is arranged at the tail end of the bearing seat (3), the sealing cover (7) is fixedly connected with the bearing seat (3) through a bolt, an oil filling nozzle (9), a temperature sensor (8) and an adjusting screw (11) are arranged at the upper part of the bearing seat (3), an oil draining cup (10) and a tension screw (12) are arranged at the lower part of the bearing seat, the bearing seat (3) is fixedly connected with a sealing sleeve (4) through a bolt, and a flange is arranged on the bearing seat; a sealing connection flange (13) is arranged between the flange of the bearing seat (3) and the tail end flange of the sealing sleeve (4), and the sealing connection flange (13) is larger than the flange of the bearing seat (3); the sealing sleeve (4) is arranged as a short joint with flanges at two ends, wherein the flange at the front end of the sealing sleeve, the flange of the inner sleeve (5) and the fixing frame (6) are fixedly connected through bolts, the fixing frame 6 is fixed at the upper part of the sealing sleeve 4, and the fixing frame 6 is used for fixing the sealing sleeve 4 at two ends of the transmission shaft 1; the flange of the inner sleeve (5), the sealing plate (20) and the fixed flange (21) are fixedly connected through bolts, a gap is formed between the sealing plate (20) and the transmission shaft (1), and the space between the sealing sleeve (4) and the inner sleeve (5) is an air chamber (29); an air inlet pipe (14) is arranged at the upper part of the tail end of the sealing sleeve (4), and a drain pipe (22) is arranged at the lower part of the other end of the sealing sleeve; the inner sleeve (5) is a double-side-wall U-shaped hollow round body with a flange at the front end, the side wall contacted with the sealing sleeve (4) is an outer side wall (17), the other side wall is an inner side wall (16), the middle of the outer side wall (17) is an opening part, the middle part of the inner sleeve (5) is provided with an exhaust chamber (19), the lower part of the exhaust chamber (19) is communicated with a drain pipe (22), and the inner side wall (16) of the inner sleeve (5) and the transmission shaft (1) are provided with an air passage (18); at least one rectangular exhaust port (15) is arranged at the lower part of the inner side wall (16); the dust leakage detection device comprises a sealing shell (23), dust detection equipment (24) and an observation cup (25), wherein the sealing shell (23) is fixedly connected with a bucket elevator shell and is simultaneously connected with the tail part of a drain pipe (22), the dust detection equipment (24) is arranged in the sealing shell (23), and the observation cup (25) is arranged at the lower part of the sealing shell (23).
2. The tail wheel transmission bearing device of the bucket elevator according to claim 1, wherein the air inlet pipe (14) and the drain pipe (22) are flexible telescopic pipes.
3. The tail wheel transmission bearing device of the bucket elevator according to claim 2, characterized in that the air pressure of the air inlet pipe (14) is set to 3000pa to 15000pa, and the air source is oil-free, moisture-free and dust-free.
4. The bucket elevator tail wheel drive bearing assembly of claim 1 wherein: the bottom of observation cup (25) sets up escape orifice (26), and the inside of escape orifice (26) sets up filter core (27), and filter core (27) are ventilative material, and the end of escape orifice (26) sets up valve (28), and the flow size of valve (28) control excretory gas.
5. A bucket elevator tail wheel drive bearing apparatus as defined in any one of claims 1-4 wherein: firstly, opening the air in the air inlet pipe (14) to enter the corresponding air chamber (29), starting the bucket elevator to operate, enabling the tail wheel transmission shaft (1) to rotate, enabling the air in the sealing sleeve (4) to enter the air channel (18) from the air chamber (29), enabling part of the air in the air channel (18) to drain into the sealing shell of the tail wheel of the bucket elevator through the gap between the sealing plate (20) and the transmission shaft (1) while preventing dust from entering the air channel (18), enabling the other part of the air in the air channel (18) to enter the air exhaust chamber (19) from the rectangular air exhaust port (15), enabling the air in the air exhaust chamber (19) to enter the exhaust pipe (22), enabling the air in the exhaust pipe (22) to enter the sealing shell (23), enabling the dust detection equipment (24) to start detecting, enabling the exhaust air in the sealing shell (23) to enter the observation cup (25), filtering the air passing through the filter element (27), and then discharging the air from the valve (28); if the sealing plate (20) is damaged or part of dust adhered to the transmission shaft (1) enters the air passage (18), part of dust falls off from the rotating transmission shaft (1) to enter the sealing shell (23) and the observation cup (25) under the force of pressure difference fluctuation due to certain pressure difference fluctuation between the air in the air passage (18) and the air pressure of the rectangular air outlet (15), dust detection equipment (24) starts to give an alarm when the dust in the excreted air in the sealing shell (23) and the observation cup (25) reaches a specified value under the action of the filter element (27), and an operator can clearly see the dust in the observation cup (25) to complete a program for automatically detecting dust sealing leakage, so that the maintenance operator can check the state of the sealing plate (20) and clean the dust on the transmission shaft in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711055905.9A CN107630931B (en) | 2017-11-01 | 2017-11-01 | Tail wheel transmission bearing device of bucket elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711055905.9A CN107630931B (en) | 2017-11-01 | 2017-11-01 | Tail wheel transmission bearing device of bucket elevator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107630931A CN107630931A (en) | 2018-01-26 |
| CN107630931B true CN107630931B (en) | 2023-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711055905.9A Active CN107630931B (en) | 2017-11-01 | 2017-11-01 | Tail wheel transmission bearing device of bucket elevator |
Country Status (1)
| Country | Link |
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| CN (1) | CN107630931B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459430A (en) * | 2019-09-03 | 2019-11-15 | 上海卓电电气有限公司 | A kind of gas density relay |
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| CN106641273A (en) * | 2017-02-24 | 2017-05-10 | 自贡兆强环保科技股份有限公司 | Magnetic liquid seal device for chemical reactor and control system for magnetic liquid seal device |
| CN206246671U (en) * | 2016-09-22 | 2017-06-13 | 大连西力博机电设备科技有限公司 | A kind of bucket elevator aft drive shaft sealing device |
| CN207315873U (en) * | 2017-11-01 | 2018-05-04 | 大连西力博机电设备科技有限公司 | A kind of air seal of tailing wheel of bucket elevator drive bearing and dust leakage detection device |
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2017
- 2017-11-01 CN CN201711055905.9A patent/CN107630931B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201016395Y (en) * | 2007-03-22 | 2008-02-06 | 姚亮 | Rotary movable sealing apparatus |
| CN201485023U (en) * | 2009-07-30 | 2010-05-26 | 芜湖起重运输机器有限公司 | Lower sealing device of belt-type and bucket-type hoisting machine |
| CN201621285U (en) * | 2010-03-10 | 2010-11-03 | 楼生友 | Sealed rotating shaft |
| CN201851668U (en) * | 2010-11-11 | 2011-06-01 | 江苏牧羊集团有限公司 | Shaft end sealing device |
| CN205076373U (en) * | 2015-09-29 | 2016-03-09 | 攀枝花环业冶金渣开发有限责任公司 | Hoister tail -gear spindle sealing device |
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| CN107630931A (en) | 2018-01-26 |
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