CN210585731U - Circular vibrating screen vibration exciter with eccentric exciting shaft - Google Patents
Circular vibrating screen vibration exciter with eccentric exciting shaft Download PDFInfo
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- CN210585731U CN210585731U CN201921124592.2U CN201921124592U CN210585731U CN 210585731 U CN210585731 U CN 210585731U CN 201921124592 U CN201921124592 U CN 201921124592U CN 210585731 U CN210585731 U CN 210585731U
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- shaft
- eccentric
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- bearing
- vibration
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Abstract
The utility model relates to a screening equipment field, concretely relates to circle of eccentric excitation axle shakes and sieves vibration exciter, close the piece including eccentric block, excitation axle, central siphon, bearing and supporting seat. The utility model discloses a design the excitation shaft into with the eccentric shaft of the eccentric block's in the both ends bearing outside the eccentric direction unanimity, through with eccentric shaft and eccentric block produce the exciting force simultaneously balance the load of bearing both sides, and utilize the exciting force that the eccentric shaft produced to reduce the load that the eccentric block counter weight reduced the bearing to improve the life of bearing, reduce the use cost of equipment.
Description
Technical Field
The utility model relates to a screening equipment field, concretely relates to circle of eccentric excitation shaft vibration exciter that shakes.
Background
The vibration exciter is a key part of the screening equipment, and bearings at two ends of the vibration exciter bear all vibration impact force generated when the vibration exciter works. The eccentric wheel and the counterweight plate of the conventional single-shaft or multi-shaft vibration exciter are arranged on the outer sides of bearings at two ends of the vibration exciting shaft, and when the eccentric wheel and the counterweight plate rotate at a high speed, a large flywheel moment and a centrifugal force are generated and concentrated on one side of the bearing. The unilateral stress of the bearing will aggravate the unilateral abrasion of the bearing caused by unbalanced load and generate a large amount of heat energy, so that the bearing is easy to damage. Thereby reducing the service life of the bearing and increasing the use cost of the equipment. In particular, bearings of vibration exciters used on ultra-large inclined circular vibrating screens with high rotating speed are easy to damage, and the problems are particularly important to solve.
SUMMERY OF THE UTILITY MODEL
For overcoming not enough among the prior art, the utility model discloses a circle of eccentric excitation axle shakes and sieves vibration exciter is through designing the excitation axle into the eccentric shaft unanimous with the eccentric direction of the eccentric block in the both ends bearing outside, lets the bearing during operation at excitation axle both ends, and the flywheel moment and the centrifugal force that produce when its inside and outside bears eccentric shaft and eccentric block high-speed rotation simultaneously. Because both sides are atress simultaneously, the unilateral wearing and tearing of balanced load reducible bearing and the high heat that brings because of unbalance, the share of eccentric block excitation force is reduced to the excitation force that produces with the eccentric shaft simultaneously to alleviate the counter weight of eccentric block, reduce the load of bearing. The utility model discloses a come the load of balanced bearing both sides with eccentric shaft and eccentric block atress simultaneously, and utilize the exciting force that the eccentric shaft produced to reduce the load that the eccentric block counter weight reduced the bearing, reach the life who improves the bearing, reduce the use cost's of equipment purpose.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a circle of eccentric excitation shaft sieve vibration exciter that shakes, includes eccentric block, bearing and supporting seat closes piece, its characterized in that: the vibration excitation device comprises a vibration excitation shaft and a shaft tube, wherein the vibration excitation shaft is an eccentric shaft, the rotating center of the vibration excitation shaft is staggered with the actual center of the shaft to form a plurality of offsets, a cavity is formed in the shaft tube, the minimum half diameter of the cavity is larger than the maximum eccentric radius of the vibration excitation shaft, the vibration excitation shaft penetrates through the inner cavity of the shaft tube and is matched with bearings and supporting seat assemblies at the left end and the right end, cavities with two closed ends and capable of freely rotating in the vibration excitation shaft are formed in the shaft tube, two groups of eccentric blocks are arranged and fixedly arranged at the left end and the right end of the vibration excitation shaft, and the eccentric direction of the.
One end of the excitation shaft exceeds the outer side of the eccentric block at the end and is set as an input end of excitation vibration force, and the excitation vibration shaft is connected with an external motor or a hydraulic motor.
The eccentric block is formed by overlapping and locking a fan-shaped eccentric wheel and a plurality of fan-shaped counterweight plates with different thicknesses.
The axle tube comprises a straight tube and flange plates fixedly connected at two ends of the straight tube, and the flange plates are locked with the supporting seat assembly.
The supporting seat assembly comprises a bearing seat, and the bearing is pressed into the bearing seat.
And lubricating oil is arranged in the shaft tube cavity.
Known from the above description, the utility model provides a pair of circle of eccentric excitation shaft sieve vibration exciter advantage lies in: the exciting shaft is designed into an eccentric shaft which is consistent with the eccentric direction of the eccentric blocks outside the bearings at the two ends, the eccentric shaft and the eccentric blocks are simultaneously stressed to balance the loads at the two sides of the bearings, and the exciting force generated by the eccentric shaft is utilized to reduce the balance weight of the eccentric blocks and reduce the loads of the bearings, so that the service life of the bearings is prolonged, and the use cost of equipment is reduced. The utility model relates to a rationally, simple structure, low cost, facilitate promotion.
Drawings
Fig. 1 is an overall schematic diagram of the circular vibrating screen vibration exciter of the eccentric excitation shaft of the utility model.
Fig. 2 is an enlarged schematic view of the section a-a of the present invention.
Fig. 3 is an enlarged schematic view of the direction B of the present invention.
Reference numerals:
1, an eccentric block; 11 an eccentric wheel; 12 a weight plate; 2, supporting a seat assembly; 3 exciting a vibration shaft; 4, a bearing;
5, an axle tube; a 51 straight pipe; 52 flange.
Detailed Description
The present invention will be further described with reference to the following detailed description.
As shown in fig. 1, fig. 2 and fig. 3, the circular vibrating screen vibration exciter of the eccentric vibration exciting shaft of the present invention comprises an eccentric block 1, a vibration exciting shaft 3, a shaft tube 5, a bearing 4 and a supporting seat assembly 2. The excitation shaft 3 is an eccentric shaft, and the rotation center of the excitation shaft is staggered with the actual center of the shaft; the shaft tube 5 comprises a straight tube 51 and flange plates 52 welded at two ends of the straight tube 51, a cavity is arranged in the straight tube 51, and the excitation shaft 3 passes through the inner cavity of the straight tube 51 and is pressed with the supporting seat assembly 2 provided with the bearings 4 at the left end and the right end; the eccentric block 1 is arranged at the left end and the right end of the excitation shaft 3 and is connected by a key, and the eccentric block 1 is overlapped and locked by a fan-shaped eccentric wheel 11 and a plurality of fan-shaped counterweight plates 12 with different thicknesses through bolts.
The installation and the use method of the circular vibrating screen vibration exciter of the eccentric excitation shaft are as follows:
firstly, the excitation shaft 3 is arranged in the shaft tube 5; pressing the supporting seat assembly 2 assembled with the bearing 4 into the two ends of the excitation shaft 3 to enable the supporting seat assembly 2 to be attached to the end face of the flange plate 52 of the shaft tube 5, locking and sealing the supporting seat assembly 2 and the shaft tube 5 by using bolts to form a cavity with two closed ends, and filling a proper amount of lubricating oil into the cavity; finally, the eccentric block 1 is pressed and installed at the left end and the right end of the excitation shaft 3 by key connection.
When the vibration exciter works, the eccentric excitation shaft 3 and the eccentric block 1 simultaneously generate excitation force, and two sides of the bearing 4 are simultaneously stressed, so that the loads on two sides of the bearing are balanced; meanwhile, the load of the bearing is reduced by properly reducing the weight plate 12 loaded on the eccentric block 1 according to the intensity of the exciting force generated by the eccentric exciting shaft 3.
In the explanation of the present invention, the terms such as "inside", "outside", "left", "right", etc. are used for indicating the orientation or the positional relationship based on the orientation or the positional relationship shown in the drawings, and are only for the convenience of simplifying the description, and do not explicitly or implicitly indicate the specific orientation or the positional relationship which must be possessed, and thus, the present invention should not be interpreted as being limited to the protection contents of the present invention.
The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited to this, and the present invention is to be used for insubstantial modification of the present invention, which all infringes the protection scope of the present invention.
Claims (6)
1. The utility model provides a circle of eccentric excitation axle shakes sieve vibration exciter, includes eccentric block (1), bearing (4) and supporting seat closes piece (2), its characterized in that: the vibration exciting shaft comprises a vibration exciting shaft (3) and a shaft tube (5), wherein the vibration exciting shaft (3) is an eccentric shaft, the rotating center of the vibration exciting shaft is staggered with the actual center of the shaft and forms a plurality of offsets, a cavity is formed in the shaft tube (5), the minimum half diameter of the cavity is larger than the maximum eccentric radius of the vibration exciting shaft (3), the vibration exciting shaft (3) penetrates through the inner cavity of the shaft tube (5) and is assembled with a bearing (4) and a supporting seat assembly (2) at the left end and the right end, a cavity with two closed ends and capable of freely rotating in the vibration exciting shaft (3) is formed in the shaft tube (5), the eccentric blocks (1) are two groups and are fixedly arranged at the left end and the right end of the vibration exciting shaft (3), and the eccentric direction of the eccentric blocks is.
2. The circular vibrating screen exciter of the eccentric excitation shaft according to claim 1, characterized in that: one end of the excitation shaft (3) exceeds the outer side of the eccentric block (1) at the end and is set as an input end of excitation vibration force, and the excitation shaft is connected with an external motor or a hydraulic motor.
3. The circular vibrating screen exciter of the eccentric excitation shaft according to claim 1, characterized in that: the eccentric block (1) is formed by overlapping and locking a sector eccentric wheel (11) and a plurality of sector counterweight plates (12) with different thicknesses.
4. The circular vibrating screen exciter of the eccentric excitation shaft according to claim 1, characterized in that: the shaft tube (5) comprises a straight tube (51) and flange plates (52) fixedly connected at two ends of the straight tube, and the flange plates (52) are locked with the supporting seat assembly (2).
5. The circular vibrating screen exciter of the eccentric excitation shaft according to claim 1, characterized in that: the supporting seat assembly (2) comprises a bearing seat, and the bearing (4) is pressed into the bearing seat.
6. The circular vibrating screen exciter of the eccentric excitation shaft according to claim 1, characterized in that: and lubricating oil is arranged in the cavity of the shaft tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921124592.2U CN210585731U (en) | 2019-07-17 | 2019-07-17 | Circular vibrating screen vibration exciter with eccentric exciting shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921124592.2U CN210585731U (en) | 2019-07-17 | 2019-07-17 | Circular vibrating screen vibration exciter with eccentric exciting shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210585731U true CN210585731U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921124592.2U Expired - Fee Related CN210585731U (en) | 2019-07-17 | 2019-07-17 | Circular vibrating screen vibration exciter with eccentric exciting shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210585731U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701849A (en) * | 2020-06-01 | 2020-09-25 | 苏州嘉诺环境工程有限公司 | Vibrating screen apparatus |
-
2019
- 2019-07-17 CN CN201921124592.2U patent/CN210585731U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111701849A (en) * | 2020-06-01 | 2020-09-25 | 苏州嘉诺环境工程有限公司 | Vibrating screen apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 362000 Fujian province Quanzhou Fengze District High-tech Industrial Park Sports Street No. 700 Patentee after: Fujian Nanfang pavement machinery Co.,Ltd. Address before: 362000 Fujian province Quanzhou Fengze District High-tech Industrial Park Sports Street No. 700 Patentee before: FUJIAN SOUTH HIGHWAY MACHINERY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 Termination date: 20210717 |