CN111924461A - Synchronous double-eccentric-shaft vibration excitation device and thin oil lubrication method - Google Patents
Synchronous double-eccentric-shaft vibration excitation device and thin oil lubrication method Download PDFInfo
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- CN111924461A CN111924461A CN202010849564.8A CN202010849564A CN111924461A CN 111924461 A CN111924461 A CN 111924461A CN 202010849564 A CN202010849564 A CN 202010849564A CN 111924461 A CN111924461 A CN 111924461A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/02—Lubricating devices
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Abstract
The invention relates to the technical field of vibration excitation devices, in particular to a synchronous double-eccentric-shaft vibration excitation device and a thin oil lubrication method. The device comprises a base, an eccentric shaft, a first oil tank, a second oil tank, a synchronous gear and an oil thrower, wherein the first oil tank and the second oil tank are respectively arranged at two ends of the eccentric shaft; and an oil thrower is arranged in the second oil tank, and the oil thrower makes lubricating oil in the second oil tank splash to lubricate the bearing. The eccentric part of the eccentric shaft is positioned outside the oil tank, and the eccentric part rotates without obstruction, so that the working loss is low; for single large-scale oil tank, adopt two small-size oil tanks to realize that a small amount of lubricating oil can guarantee abundant lubricated effect to accomplish better sealed design, avoid revealing. Synchronous gear and oil thrower dish cooperate and go up the oil circuit design, need not the external power and can realize the oil circuit circulation in the oil tank, and is fully lubricated.
Description
Technical Field
The invention relates to the technical field of vibration excitation devices, in particular to a synchronous double-eccentric-shaft vibration excitation device and a thin oil lubrication method.
Background
With the rapid development of the existing industrial level, feeders are used in external transportation in industries such as mines, metallurgy and chemical industry in large quantity, the existing feeders generally use a shock absorber to vibrate so as to enable materials to run, and the shock absorber needs to rotate at high speed during working, so that bearings need to be kept well lubricated.
Chinese patent publication No. CN 201567049U discloses an external transmission double-shaft vibrator, which comprises a double-shaft vibrator, and is characterized in that: two eccentric shafts are arranged in parallel in a shell, the same ends of the two eccentric shafts are respectively provided with a transmission gear which is meshed with each other, thin oil which is contacted with the lower part of the gear is arranged in the shell, and oil through holes which are communicated with the bearings and the gear are arranged on the shell. The existing double-eccentric-shaft vibration excitation device adopts thin oil for lubrication, the lubrication effect is obviously improved compared with that of paste lubricating oil, but the single large oil tank is adopted, so that the needed lubricating oil quantity is more, the requirement on the sealing effect of more lubricating oil is higher, and the problem of lubricating oil leakage is easy to occur; the eccentric part of the eccentric shaft is positioned in the oil tank, and when the eccentric shaft rotates, the lubricating oil forms resistance on the eccentric part, so that the energy consumption loss of equipment operation is increased.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the synchronous double-eccentric-shaft vibration excitation device with good lubrication effect and small energy consumption loss.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a synchronous two eccentric shaft excitation device, includes base, eccentric shaft middle part position is eccentric portion, and its characterized in that is located on the base through the bearing in the position of eccentric shaft both ends: the eccentric shaft comprises a driving shaft and a driven shaft, the first oil tank and the second oil tank are respectively arranged at two ends of the eccentric shaft, the end part of the eccentric shaft and a bearing at the corresponding end are sealed in the first oil tank and the second oil tank, lubricating oil is respectively arranged in the first oil tank and the second oil tank, the driving shaft and the driven shaft which are positioned in the first oil tank are respectively sleeved with synchronous gears which are in mutual meshing transmission, and the lubricating oil in the first oil tank is splashed to lubricate the bearing which is positioned in the first oil tank by the rotation of the synchronous gears; and an oil thrower disc which rotates together is arranged on the driving shaft or/and the driven shaft in the second oil tank, and the oil thrower disc rotates to enable lubricating oil in the second oil tank to splash to lubricate a bearing in the second oil tank.
Further, still include bearing frame, bearing gland, the bearing frame install on the base and with the base between sealing connection, the bearing is installed in the bearing frame, first oil tank includes the first cover body, the first cover body cover is located base one side and is covered the bearing frame that corresponds this side and locate in, sealing connection between the first cover body and the base, the second oil tank includes the second cover body, the second cover body cover is located base one side and is covered the bearing frame that corresponds this side and locate in, sealing connection between the second cover body and the base, the bearing frame is equipped with bearing gland towards the first cover body or the internal one side of second cover and forms open end, and the opposite side is equipped with bearing gland and seals.
The eccentric shaft is arranged on the outer side of the eccentric shaft and is correspondingly positioned on the inner side of the bearing gland, a first oil groove with an outward opening and arranged around the axis is formed in the outer side face of the shaft sleeve, first oil passage channels penetrating through two sides are arranged in the bearing seat, second oil passage channels are arranged in the bearing gland, a plurality of first oil passage channels are arranged, a plurality of second oil passage channels are arranged, each first oil passage channel is distributed at different height positions, one end of each second oil passage channel is communicated with the corresponding first oil passage channel, the other end of each second oil passage channel is communicated to the corresponding first oil groove, the corresponding first oil passage channel and the corresponding second oil passage are matched with the corresponding first oil groove, and a circulating oil passage is formed, wherein lubricating oil enters from the high-position first oil passage channel and is discharged from the low-position first oil passage channel.
Furthermore, an oil guide groove is formed in one side face, facing the bearing seat, of the bearing gland, corresponds to the first oil channel and is communicated to one side inside the bearing seat, and a lubricating oil channel is formed in the bearing gland, wherein lubricating oil enters one side inside the bearing seat from the first oil channel and is discharged from the other side after passing through the bearing.
Further, bearing cover medial surface is equipped with the second oil groove that the opening just encircles the axis setting inwards, and first oil groove and second oil groove staggered arrangement form labyrinth seal structure.
Further, a sealing ring is arranged outside the shaft sleeve and acts between the bearing gland and the shaft sleeve.
Further, the open end of the bearing seat is provided with an inclined surface facing the bearing direction, and the inclined surface is used for guiding the lubricating oil to gather towards the bearing direction.
Furthermore, an oil filling port, an oil level mirror and an oil drainage port which are independently arranged are respectively arranged on the first oil tank and the second oil tank.
Furthermore, the eccentric shaft sealing device further comprises a sealing cover, wherein the sealing cover is arranged on the base and positioned between the first oil tank and the second oil tank, and the sealing cover seals the eccentric part of the eccentric shaft.
A thin oil lubrication method of a synchronous double-eccentric-shaft excitation device is characterized by comprising the following steps: based on the synchronous double eccentric shaft excitation device of any one of the above items,
the driving shaft rotates and drives the driven shaft to rotate together through the synchronous gear; in the first oil tank, lubricating oil is splashed while the synchronous gear rotates; in the second oil tank, the oil thrower rotates and splashes lubricating oil;
the splashed lubricating oil enters from the first oil path channel with the higher relative horizontal position on the bearing seat, reaches the first oil groove along the corresponding second oil path channel, is sent out from the second oil path channel below and is discharged from the first oil path channel with the lower relative horizontal position on the bearing seat to form a circulating oil path, and plays roles of lubricating, cooling and deslagging;
the splashed lubricating oil enters from the first oil path channel and enters the bearing seat through the corresponding oil guide groove, and the lubricating oil passes through the bearing from one side of the bearing and then is discharged from the other side of the bearing to form a lubricating oil path, so that the lubricating oil path has the functions of lubricating and deslagging.
As can be seen from the above description of the present invention, compared with the prior art, the excitation device for the synchronous dual eccentric shafts and the thin oil lubrication method provided by the present invention lubricate the bearing positions at the two ends of the eccentric shaft respectively by providing the two oil tanks, so that the eccentric portion of the eccentric shaft is located outside the oil tanks, the rotation of the eccentric portion is not obstructed, and the working loss is low; compared with a single large oil tank, the two small oil tanks can realize a small amount of lubricating oil, so that a sufficient lubricating effect can be ensured, a better sealing design can be realized, and leakage is avoided; the eccentric shaft rotates to drive the synchronous gear and the oil thrower to rotate, and the oil circuit is designed in a matched mode, so that oil circuit circulation in the oil tank can be achieved without external power, and sufficient lubrication is achieved.
Drawings
FIG. 1 is a cross-sectional view of a synchronous dual eccentric shaft excitation device according to the present invention.
FIG. 2 is an enlarged view of a portion of FIG. 1 according to the present invention.
Fig. 3 is a partial cross-sectional view at a different cross-sectional angle from that of fig. 2, in the same position in accordance with the present invention.
FIG. 4 is a schematic diagram of an external structure of a synchronous dual eccentric shaft excitation device according to the present invention.
The labels in the figure correspond to the following: 1. the bearing comprises a base, 11. a closed cover, 2. an eccentric shaft, 21. an eccentric part, 22. a bearing, 2a. a driving shaft, 2b. a driven shaft, 3. a first oil tank, 31. a first cover body, 4. a second oil tank, 41. a second cover body, 5. a synchronous gear, 6. an oil thrower, 7. a bearing seat, 71. a first oil channel, 72. an inclined plane, 8. a bearing gland, 81. a second oil channel, 82. an oil guide groove, 83. a second oil groove, 9. a shaft sleeve, 91. a first oil groove, 92. a sealing ring.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1 to 4, the synchronous dual-eccentric-shaft excitation device includes a base 1, an eccentric shaft 2, a first oil tank 3, a second oil tank 4, a synchronous gear 5, an oil thrower 6, a bearing block 7, a bearing cover 8, and a shaft sleeve 9.
The middle section position of the eccentric shaft 2 is an eccentric part 21, the two end parts of the eccentric shaft 2 are arranged on the base 1 through bearings 22, the eccentric shaft 2 comprises a driving shaft 2a and a driven shaft 2b, a first oil tank 3 and a second oil tank 4 are respectively arranged at the two ends of the eccentric shaft 2, the end parts of the eccentric shaft 2 and the bearings 22 at the corresponding ends are sealed in the first oil tank 3 and the second oil tank 4, lubricating oil is respectively arranged in the first oil tank 3 and the second oil tank 4, the driving shaft 2a and the driven shaft 2b in the first oil tank 3 are respectively sleeved with synchronous gears 5 which are mutually meshed for transmission, and the synchronous gears 5 rotate to enable the lubricating oil in the first oil tank 3 to splash to lubricate the bearings 22 in; an oil thrower 6 rotating together with the drive shaft 2a and/or the driven shaft 2b in the second oil tank 4 is provided, and the oil thrower 6 rotates to splash the lubricating oil in the second oil tank 4 to lubricate the bearing 22 in the second oil tank 4.
The base 1 is provided with a sealing cover 11, the sealing cover 11 is arranged on the base 1 and is positioned between the first oil tank 3 and the second oil tank 4, and the sealing cover 11 seals the eccentric part 21 of the eccentric shaft 2.
The working principle of the synchronous double-eccentric-shaft excitation device is as follows:
the bearings 22 of the installation at the two ends of the eccentric shaft 2 are respectively positioned in the first oil tank 3 and the second oil tank 4 for lubrication, and the eccentric part 21 in the middle of the eccentric shaft 2 is positioned outside the oil tanks, so that the eccentric shaft 2 does not contact with lubricating oil in the rotating process, the rotation is not obstructed, and the energy consumption of equipment operation is reduced.
A driving shaft 2a of the eccentric shaft 2 is driven by an external driving motor to rotate, and the driving shaft 2a and a driven shaft 2b are in transmission connection through a synchronous gear 5, so that the driving shaft 2a and the driven shaft 2b synchronously rotate;
in the first oil tank 3, the synchronizing gear 5 splashes up the lubricating oil in the first oil tank 3 while rotating, the lubricating oil lubricates the synchronizing gear 5, and the splashed lubricating oil lubricates the bearing 22 in the first oil tank 3.
In the second oil tank 4, the oil slinger 6 rotates together with the driven shaft 2b, and the oil slinger 6 splashes the lubricating oil in the second oil tank 4, and the splashed lubricating oil lubricates the bearing 22 in the second oil tank 4.
The splashed lubricating oil enters from the first oil passage 71 with the relatively high horizontal position on the bearing seat 7 and reaches the first oil groove 91 along the corresponding second oil passage 81, and because the first oil groove 91 is arranged in a surrounding manner, the lubricating oil is sent out from the second oil passage 81 below and is discharged from the first oil passage 71 with the relatively low horizontal position on the bearing seat 7 to form a circulating oil path, so that the lubricating oil can be used for lubricating and cooling, and impurities such as metal chips and the like generated during the operation of the equipment can be introduced into the oil tank;
the splashed lubricating oil enters from the first oil passage channel 71, enters the bearing seat 7 through the corresponding oil guide grooves 81, passes through the bearing 22 from one side of the bearing 22 and then is discharged from the other side of the bearing 22 to form a lubricating oil passage, so that the effective lubrication of the bearing 22 is realized, and impurities such as metal chips and the like generated during the operation of the equipment are discharged and enter the oil tank.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (10)
1. The utility model provides a synchronous two eccentric shaft excitation device, includes base, eccentric shaft middle part position is eccentric portion, and its characterized in that is located on the base through the bearing in the position of eccentric shaft both ends: the eccentric shaft comprises a driving shaft and a driven shaft, the first oil tank and the second oil tank are respectively arranged at two ends of the eccentric shaft, the end part of the eccentric shaft and a bearing at the corresponding end are sealed in the first oil tank and the second oil tank, lubricating oil is respectively arranged in the first oil tank and the second oil tank, the driving shaft and the driven shaft which are positioned in the first oil tank are respectively sleeved with synchronous gears which are in mutual meshing transmission, and the lubricating oil in the first oil tank is splashed to lubricate the bearing which is positioned in the first oil tank by the rotation of the synchronous gears; and an oil thrower disc which rotates together is arranged on the driving shaft or/and the driven shaft in the second oil tank, and the oil thrower disc rotates to enable lubricating oil in the second oil tank to splash to lubricate a bearing in the second oil tank.
2. The synchronous double eccentric shaft excitation device of claim 1, wherein: still include bearing frame, bearing gland, the bearing frame install on the base and with the base between sealing connection, the bearing is installed in the bearing frame, first oil tank includes the first cover body, the first cover body cover is located base one side and is covered the bearing frame that corresponds this side and locate in, sealing connection between the first cover body and base, the second oil tank includes the second cover body, the second cover body cover is located base one side and is covered the bearing frame that corresponds this side and locate in, sealing connection between the second cover body and base, the bearing frame forms open end towards one side in the first cover body or the second cover body, and the opposite side is equipped with bearing gland and seals.
3. The synchronous double eccentric shaft excitation device of claim 2, wherein: the eccentric shaft is arranged outside the eccentric shaft and is correspondingly positioned on the inner side of the bearing gland, a first oil groove with an outward opening and arranged around the axis is formed in the outer side face of the shaft sleeve, first oil way channels penetrating through two sides are arranged in the bearing seat, a second oil way channel is arranged in the bearing gland, the first oil way channels are provided with a plurality of oil way channels, the second oil way channels are provided with a plurality of oil way channels, the first oil way channels are distributed at different height positions, one end of each second oil way channel is communicated with the corresponding first oil way channel, the other end of each second oil way channel is communicated to the corresponding first oil groove, the corresponding first channel and the corresponding second channel are matched with the corresponding first oil groove, and a circulating oil way is formed in which lubricating oil enters from the high-position first oil way channel and is discharged from.
4. The synchronous double eccentric shaft excitation device of claim 3, wherein: one side of the bearing gland facing the bearing seat is provided with an oil guide groove, the oil guide groove corresponds to a first oil passage and is communicated to one side inside the bearing seat, and a lubricating oil passage for lubricating oil to enter one side in the bearing seat from the first oil passage and to be discharged from the other side after passing through the bearing is formed.
5. The synchronous double eccentric shaft excitation device of claim 3, wherein: bearing gland medial surface is equipped with the second oil groove that the opening just encircles the axis setting inwards, and first oil groove and second oil groove staggered arrangement form labyrinth seal structure.
6. The synchronous double eccentric shaft excitation device of claim 5, wherein: and a sealing ring is arranged outside the shaft sleeve and acts between the bearing gland and the shaft sleeve.
7. The synchronous double eccentric shaft excitation device of claim 2, wherein: the open end of the bearing seat is provided with an inclined surface facing the bearing direction, and the inclined surface is used for guiding lubricating oil to gather towards the bearing direction.
8. The synchronous double eccentric shaft excitation device of claim 1, wherein: and the first oil tank and the second oil tank are respectively provided with an oil filling port, an oil level mirror and an oil drainage port which are independently arranged.
9. The synchronous double eccentric shaft excitation device of claim 1, wherein: the eccentric shaft sealing device further comprises a sealing cover, the sealing cover is installed on the base and located between the first oil tank and the second oil tank, and the sealing cover seals the eccentric portion of the eccentric shaft.
10. A thin oil lubrication method of a synchronous double-eccentric-shaft excitation device is characterized by comprising the following steps: the synchronous double eccentric shaft excitation device according to any one of claims 1 to 9,
the driving shaft rotates and drives the driven shaft to rotate together through the synchronous gear; in the first oil tank, lubricating oil is splashed while the synchronous gear rotates; in the second oil tank, the oil thrower rotates and splashes lubricating oil;
the splashed lubricating oil enters from the first oil path channel with the higher relative horizontal position on the bearing seat, reaches the first oil groove along the corresponding second oil path channel, is sent out from the second oil path channel below and is discharged from the first oil path channel with the lower relative horizontal position on the bearing seat to form a circulating oil path, and plays roles of lubricating, cooling and deslagging;
the splashed lubricating oil enters from the first oil path channel and enters the bearing seat through the corresponding oil guide groove, and the lubricating oil passes through the bearing from one side of the bearing and then is discharged from the other side of the bearing to form a lubricating oil path, so that the lubricating oil path has the functions of lubricating and deslagging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010849564.8A CN111924461A (en) | 2020-08-21 | 2020-08-21 | Synchronous double-eccentric-shaft vibration excitation device and thin oil lubrication method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010849564.8A CN111924461A (en) | 2020-08-21 | 2020-08-21 | Synchronous double-eccentric-shaft vibration excitation device and thin oil lubrication method |
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| CN111924461A true CN111924461A (en) | 2020-11-13 |
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| CN202010849564.8A Pending CN111924461A (en) | 2020-08-21 | 2020-08-21 | Synchronous double-eccentric-shaft vibration excitation device and thin oil lubrication method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143106A (en) * | 2022-08-11 | 2022-10-04 | 山东省章丘鼓风机股份有限公司 | Roots blower with special sealing protection for shaft extension end |
| CN116696770A (en) * | 2023-06-15 | 2023-09-05 | 深圳市大成精密设备股份有限公司 | Vacuum pump |
-
2020
- 2020-08-21 CN CN202010849564.8A patent/CN111924461A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143106A (en) * | 2022-08-11 | 2022-10-04 | 山东省章丘鼓风机股份有限公司 | Roots blower with special sealing protection for shaft extension end |
| CN116696770A (en) * | 2023-06-15 | 2023-09-05 | 深圳市大成精密设备股份有限公司 | Vacuum pump |
| CN116696770B (en) * | 2023-06-15 | 2024-02-06 | 深圳市大成精密设备股份有限公司 | Vacuum pump |
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