CN213001192U - Circular vibrating screen vibrator - Google Patents
Circular vibrating screen vibrator Download PDFInfo
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- CN213001192U CN213001192U CN202021661071.3U CN202021661071U CN213001192U CN 213001192 U CN213001192 U CN 213001192U CN 202021661071 U CN202021661071 U CN 202021661071U CN 213001192 U CN213001192 U CN 213001192U
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- sealing ring
- ring
- conical
- isolating
- eccentric shaft
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Abstract
The utility model provides a circular vibrating screen vibrator, belongs to vibration screening machinery, solves circular vibrating screen vibrator's sealed problem. The sealing device is arranged between the bearing seat and the eccentric shaft and comprises an isolating ring, a main sealing ring and a sealing ring. The sealing ring and the isolating ring are sequentially sleeved on the shaft diameter of the eccentric shaft, and the main sealing ring is arranged on the bearing seat and is positioned between the sealing ring and the isolating ring. The outer surface of the main sealing ring is provided with a lip plate matched with the isolating ring at a position close to the isolating ring, and the lip plate on the isolating ring form labyrinth seal together. The main sealing ring is provided with a conical round platform formed by two conical surfaces, and the conical round groove and the conical round platform are matched with each other to form conical surface sealing. The leakage of oil and the invasion of external dust are effectively prevented, the integral production operation rate of the vibrating screen is improved, and the operation environment of equipment is improved. The sealing device can be used for sealing various circular vibrating screen vibrators.
Description
Technical Field
The utility model belongs to the field of vibration screening machinery, mainly relate to lubricated good, the no circular vibrating screen vibrator who leaks of bearing.
Background
The circular vibrating screen is characterized in that a vibrator with eccentric mass is driven by a motor to drive a screen box and a screen to vibrate, and classified screening of materials on the screen is completed. The vibrator is the combination of a shaft eccentric vibrator and a block eccentric vibrator, and has the characteristics of large exciting force and good integral rigidity and strength. The motion trail of the screen box is circular, and the screen box has large treatment capacity and high screening efficiency. The vibrator mainly comprises an eccentric shaft, a shaft cover pipe, a bearing seat, a sealing device, an eccentric block and the like. The lubrication of the bearing adopts a thin oil lubrication mode, and in order to prevent the lubricating oil from leaking, a framework sealing ring is used as a dynamic sealing mode which is usually adopted. However, the rotating speed of the shaft of the vibrator is relatively high, the vibration intensity of the shaft is high, and the abrasion of a dynamic sealing element is serious. Especially, the working environment of the vibrating screen is severe, the abrasion of the dynamic sealing element is accelerated by the entering of dust, the service life of the sealing element is shortened, oil is leaked outside, the environment is polluted, and the normal use of the vibrator is directly influenced.
Disclosure of Invention
The utility model aims at providing a circular vibrating screen vibrator, this vibrator adopt the sealed method that labyrinth seal and conical surface dynamic seal combined together, have guaranteed not to have leaked, have prolonged its life.
The utility model discloses a realize through following technical scheme, including eccentric shaft, axle housing pipe, bearing frame, sealing device and eccentric block, the eccentric shaft passes through the bearing and installs on the bearing frame, and the bearing frame is installed on the sieve case curb plate with the cooperation of axle housing pipe flange seat, and the both ends at the eccentric shaft, characterized by are installed to the eccentric block: the sealing device is arranged between the bearing seat and the eccentric shaft and comprises an isolating ring, a main sealing ring and a sealing ring; the sealing ring and the isolating ring are sequentially sleeved on the shaft diameter of the eccentric shaft, and the main sealing ring is arranged on the bearing seat and positioned between the sealing ring and the isolating ring; a lip plate matched with the isolating ring is arranged at the position, close to the isolating ring, of one side of the main sealing ring, and forms labyrinth seal together with the lip plate on the isolating ring; the main sealing ring is provided with a conical round platform formed by two conical surfaces, and the conical round groove and the conical round platform are matched with each other to form dynamic conical surface sealing.
And a lip plate which is matched with each other is arranged between the other side of the main sealing ring and the sealing ring to form labyrinth seal. A framework oil seal is arranged between the main sealing ring and the isolating ring; and a sealing ring is arranged between the sealing ring and the eccentric shaft. The conical circular groove and the conical circular truncated cone are positioned at the position close to the eccentric shaft.
The beneficial effects of the utility model are that, for the circle sieve that shakes provides a vibrator that seal structure is reasonable, the use is reliable, fundamentally solves the easy impaired problem that leads to lubricating oil to leak or the sealing member life-span is short of current vibrator sealing device. The reliable vibrator sealing device ensures the integral use performance of the circular vibrating screen. A conical circular groove formed by two conical surfaces is machined in a sealing ring of the sealing device, a conical round table formed by two conical surfaces is machined in a main sealing ring, and the conical circular groove and the conical round table are matched with each other to form dynamic conical surface sealing. When the eccentric shaft rotates, the conical surface contact is formed between the conical circular groove and the conical circular truncated cone, an extremely thin dynamic oil film B is formed at the V-shaped contact surface which moves relatively, and a large friction resistance is formed on lubricating oil due to the large area of the contact surface, so that the leakage of the lubricating oil is effectively prevented. The machining precision of the sealing element is improved, and the sealing performance of the sealing element can be improved. In addition, the mutual meshing between the lip plates forms a labyrinth type sealing channel, so that the flowing resistance of oil in a leakage channel is increased, the probability of external dust entering a closed oil cavity is reduced, and the leakage of the oil and the invasion of the external dust are effectively prevented. The whole production operation rate of the vibrating screen is improved, and the operation environment of the equipment is improved. The sealing device can be used for sealing various circular vibrating screen vibrators.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of a portion of the sealing device at A of FIG. 1;
in the figure, 1 is an eccentric shaft, 2 is a shaft cover pipe, 3 is a flange seat of the shaft cover pipe, 4 is a side plate of a screen box, 5 is a bearing seat, 6 is an eccentric block, 7 is a coupler, 8 is a framework oil seal, 9 is an isolating ring, 10 is a main sealing ring, 11 is a sealing ring, 12 is a sealing ring and 13 is a bearing; and B is a dynamic oil film formed between the conical circular groove and the conical circular table.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings:
the device comprises an eccentric shaft 1, a shaft cover pipe 2, a bearing seat 5, a sealing device and eccentric blocks 6, wherein the eccentric shaft 1 is installed on the bearing seat 5 through a bearing, the bearing seat 5 and a flange seat 3 of the shaft cover pipe are installed on a side plate 4 of a screen box in a matched mode, and the eccentric blocks 6 are installed at two ends of the eccentric shaft 1. The sealing device is arranged between the bearing seat 5 and the eccentric shaft 1 and comprises an isolating ring 9, a main sealing ring 10 and a sealing ring 11; the sealing ring 11 and the isolating ring 9 are sequentially sleeved on the shaft diameter of the eccentric shaft 1, and the main sealing ring 10 is arranged on the bearing seat 5 and is positioned between the sealing ring 11 and the isolating ring 9; a lip plate matched with the isolating ring 9 is arranged at the position, close to the isolating ring 9, of one side of the main sealing ring 10, and forms labyrinth seal together with the lip plate on the isolating ring 9; a conical circular groove formed by two conical surfaces is machined in the sealing ring 11, a conical circular truncated cone formed by two conical surfaces is machined in the main sealing ring 10, and the conical circular groove and the conical circular truncated cone are matched with each other to form dynamic conical surface sealing.
And a lip plate which is matched with the sealing ring 11 is arranged between the other side of the main sealing ring 10 to form a labyrinth seal. A framework oil seal 8 is arranged between the main sealing ring 10 and the isolating ring 9; a seal ring 12 is provided between the seal ring 11 and the eccentric shaft 1. The conical circular groove and the conical circular table are positioned at the position close to the eccentric shaft 1.
Claims (4)
1. The utility model provides a circular vibrating screen vibrator, includes eccentric shaft (1), axle housing pipe (2), bearing frame (5), sealing device and eccentric block (6), and install on bearing frame (5) through the bearing eccentric shaft (1), and install on sieve case curb plate (4) bearing frame (5) and axle housing pipe flange seat (3) cooperation, and the both ends at eccentric shaft (1), characterized by are installed in eccentric block (6): the sealing device is arranged between the bearing seat (5) and the eccentric shaft (1), and comprises an isolating ring (9), a main sealing ring (10) and a sealing ring (11); the sealing ring (11) and the isolating ring (9) are sequentially sleeved on the shaft diameter of the eccentric shaft (1), and the main sealing ring (10) is arranged on the bearing seat (5) and is positioned between the sealing ring (11) and the isolating ring (9); a lip plate matched with the isolating ring (9) is arranged at the position, close to the isolating ring (9), of one side of the main sealing ring (10), and forms labyrinth seal together with the lip plate on the isolating ring (9); a conical circular groove formed by two conical surfaces is machined in the sealing ring (11), a conical circular truncated cone formed by two conical surfaces is machined in the main sealing ring (10), and the conical circular groove and the conical circular truncated cone are matched with each other to form dynamic conical surface sealing.
2. The circular shaker as in claim 1, further comprising: and a lip plate which is matched with each other is arranged between the other side of the main sealing ring (10) and the sealing ring (11) to form labyrinth seal.
3. The circular shaker as in claim 1, further comprising: a framework oil seal (8) is arranged between the main sealing ring (10) and the isolating ring (9); a sealing ring (12) is arranged between the sealing ring (11) and the eccentric shaft (1).
4. The circular shaker as in claim 1, further comprising: the conical circular groove and the conical circular truncated cone are positioned at the position close to the eccentric shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021661071.3U CN213001192U (en) | 2020-08-12 | 2020-08-12 | Circular vibrating screen vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021661071.3U CN213001192U (en) | 2020-08-12 | 2020-08-12 | Circular vibrating screen vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213001192U true CN213001192U (en) | 2021-04-20 |
Family
ID=75464579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021661071.3U Active CN213001192U (en) | 2020-08-12 | 2020-08-12 | Circular vibrating screen vibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213001192U (en) |
-
2020
- 2020-08-12 CN CN202021661071.3U patent/CN213001192U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210709 Address after: 114051 Liaoning city of Anshan province high tech Zone Anqian Road No. 294 Patentee after: Anshan Anzhong Mining Machinery Co.,Ltd. Address before: Anshan City, Liaoning Province victory road 114042 Lishan District No. 900 Patentee before: ANSHAN HEAVY DUTY MINING MACHINERY Co.,Ltd. |