CN218743076U - Vibration exciter and screening plant with lubricated heat radiation structure - Google Patents

Abstract

The utility model discloses a vibration exciter with a lubricating and heat-dissipating structure and a screening device, wherein the lubricating and heat-dissipating structure of the vibration exciter comprises two supporting plates which are correspondingly arranged; the two through shafts are arranged on the two supporting plates; the sealing seats are arranged at two ends of the through shaft and are positioned between the through shaft and the supporting plate; wherein, lead to the axle and include the hollow shaft and set up vibration axle in the hollow shaft, the seal receptacle with hollow shaft sealing connection, the seal receptacle with the rotatable cup joint of vibration axle, the hollow shaft with form the oil pocket between the vibration axle, the oil pocket extends to the seal receptacle with between the vibration axle, the oil pocket intussuseption is filled with lubricating oil, the vibration axle soaks in the lubricating oil, be used for the vibration axle is in lubricated and cooling during the seal receptacle internal motion, the seal receptacle with be equipped with seal structure between the vibration axle, be used for the restriction lubricating oil is followed the vibration axle with ooze between the seal receptacle.

Description

Vibration exciter and screening plant with lubricated heat radiation structure

Technical Field

The utility model relates to a technical field of screening machinery especially relates to a vibration exciter and screening plant with lubricated heat radiation structure.

Background

The screening device comprises a dewatering screen and a vibrating screen, wherein the dewatering screen mainly has the functions of dewatering, desliming and medium removal, can be used for washing sand in a sand and stone material plant, recovering coal slime in a coal dressing plant, and dry-discharging tailings in a concentrating plant, and is also called as a sand and stone dewatering screen, a mining dewatering screen, a coal slime dewatering screen, a dry-discharging tailings screen, a high-frequency dewatering screen and the like. An oil seal bearing is usually arranged at the rotating part of a vibrating shaft of the conventional double-shaft dewatering screen, solid grease (butter) is adopted between the oil seal bearing and the vibrating shaft for lubrication and heat dissipation, the vibrating shaft moves in the oil seal bearing to generate heat, and the solid grease is heated due to heat absorption, so that the solid grease is seriously lost; on one hand, solid grease needs to be supplemented between the oil seal bearing and the vibration shaft at intervals, so that not only is the expenditure of the solid grease increased, but also the oil seal bearing and the vibration shaft are damaged, and the cost for maintaining the dewatering screen is increased; on the other hand, the solid grease has poor heat dissipation effect between the oil seal bearing and the vibration shaft, so that the vibration shaft is damaged, and the cost for maintaining the dewatering screen is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vibration exciter and screening plant with lubricated heat radiation structure, through filling into lubricating oil in heat radiation structure, realize lubricated and the heat dissipation to the vibration exciter, it has lubricated and the good advantage of radiating effect.

In order to solve the technical problem, the utility model provides a vibration exciter with lubricated heat radiation structure, include:

two supporting plates which are correspondingly arranged;

the two through shafts are arranged on the two supporting plates; and

the sealing seats are arranged at two ends of the through shaft and are positioned between the through shaft and the supporting plate;

wherein, lead to the axle and include the hollow shaft and set up vibration axle in the hollow shaft, the seal receptacle with hollow shaft sealing connection, the seal receptacle with the rotatable cup joint of vibration axle, the hollow shaft with form the oil pocket between the vibration axle, the oil pocket extends to the seal receptacle with between the vibration axle, the oil pocket intussuseption is filled with lubricating oil, the vibration axle soaks in the lubricating oil, be used for the vibration axle is in lubricated and cooling during the seal receptacle internal motion, the seal receptacle with be equipped with seal structure between the vibration axle, be used for the restriction lubricating oil is followed the vibration axle with ooze between the seal receptacle.

The utility model discloses further set up to: the seal receptacle is including the first ring flange, bearing frame and the second ring flange that set gradually, first ring flange with hollow shaft sealing connection, the bearing frame with the backup pad is fixed, the second ring flange with the rotatable cup joint of vibration axle, seal structure sets up the second ring flange with between the vibration axle.

The utility model discloses further set up to: wear-resisting rings are arranged at two ends of the vibration shaft, are positioned between the second flange plate and the vibration shaft and are abutted between the sealing structure and the vibration shaft.

The utility model discloses further set up to: the second flange plate is provided with a mounting hole, the second flange plate is sleeved with the vibration shaft through the mounting hole, the hole wall of the mounting hole is provided with a limiting ring, a gap exists between the limiting ring and the wear-resistant ring, and a first limiting groove and a second limiting groove are respectively formed between two side faces of the limiting ring and the hole wall of the mounting hole; the sealing structure comprises an oil seal ring and a sealing ring, the oil seal ring is positioned in the first limiting groove and is respectively abutted against the wear-resisting ring and the second flange plate, and the sealing ring is positioned in the second limiting groove and is respectively abutted against the wear-resisting ring and the second flange plate.

The utility model discloses further set up to: the bearing seat is internally provided with a rolling bearing, the rolling bearing is connected between the bearing seat and the vibration shaft, and an oil thrower is arranged between the rolling bearing and the wear-resistant ring and used for slowing down oil pressure between the sealing structure and the wear-resistant ring.

The utility model discloses further set up to: and a sealing gasket is arranged between the oil thrower and the wear-resistant ring to limit the lubricating oil from permeating between the wear-resistant ring and the vibration shaft.

The utility model discloses further set up to: the vibration shaft is characterized in that a spacer ring is arranged between the oil thrower disc and the rolling bearing and used for separating the oil thrower disc from the rolling bearing, the vibration shaft is sleeved with the spacer ring, and the outer diameter of the spacer ring is smaller than that of the oil thrower disc.

The utility model discloses further set up to: the side surfaces of the first flange plate, which are opposite to the second flange plate, are respectively provided with a first mounting groove and a second mounting groove; the first flange plate is abutted to the bearing seat through the first mounting groove, and a first sealing ring is arranged between the first mounting groove and the bearing seat; the second flange plate is abutted to the bearing seat through the second mounting groove, and a second sealing ring is arranged between the second mounting groove and the bearing seat.

The utility model discloses further set up to: the hollow shaft is provided with a first oil through pipe and a second oil through pipe, the first oil through pipe and the second oil through pipe are communicated with the oil cavity, a ventilation cap is arranged in the first oil through pipe and used for ventilating the lubricating oil in the oil cavity, and an oil plug is arranged in the second oil through pipe and used for introducing the lubricating oil into the oil cavity or discharging the lubricating oil from the oil cavity.

In order to solve the same technical problem, the utility model also provides a screening plant, screening plant is provided with the lubricated heat radiation structure of vibration exciter.

To sum up, the beneficial effects of the utility model are that:

compared with the prior art, the utility model discloses a lead to axle both ends and being equipped with the seal receptacle, lead to the axle including the hollow shaft and set up the vibration axle in the hollow shaft, the seal receptacle sealing connection at hollow shaft and both ends, the vibration axle can rotate with the seal receptacle at both ends and cup joint, form the oil pocket between hollow shaft and the vibration axle, the oil pocket extends to between seal receptacle and the vibration axle, it has lubricating oil to fill in the oil pocket, the vibration axle soaks in lubricating oil, when the vibration axle rotates in the seal receptacle, lubricating oil not only for the vibration axle rotates lubrication in the seal receptacle, but also lubricating oil absorbs the heat that the vibration axle rotated the production in the seal receptacle, realize cooling heat dissipation to the vibration axle; on the one hand, be favorable to optimizing the performance of vibration axle at the seal receptacle internal rotation, on the other hand, the vibration axle soaks in lubricating oil to promote the cooling radiating efficiency of vibration axle, thereby prolong the life-span of vibration axle. The seal receptacle with be equipped with seal structure between the vibration axle to the lubricating oil of restriction oil intracavity oozes from between seal receptacle and the vibration axle, because lubricating oil can't ooze out from the oil pocket, need not often supplementary lubricating oil, with the expenditure that reduces lubricating oil, thereby reduce the cost of maintaining the vibration exciter.

Wear-resisting rings are arranged at two ends of the vibration shaft and are positioned between the vibration shaft and the second flange plate so as to limit the second flange plate from wearing the vibration shaft and prolong the service life of the vibration shaft; the wear ring abuts the seal structure to limit leakage of lubricating oil from between the wear ring and the seal structure. The sealing structure comprises an oil seal ring and a sealing ring, wherein the oil seal ring and the sealing ring are arranged between the wear-resisting ring and the second flange plate so as to limit lubricating oil from seeping out.

Drawings

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Fig. 1 is a schematic structural diagram of a vibration exciter in an embodiment of the present invention;

fig. 2 is a schematic view of a vibration exciter according to an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is a schematic structural diagram of a support plate and a bearing seat in an embodiment of the present invention;

fig. 6 is a schematic view of a support plate and bearing housing in an embodiment of the invention;

fig. 7 is a cross-sectional view at E-E in fig. 6.

Wherein, 1, a support plate; 2. passing through the shaft; 21. a hollow shaft; 211. an oil plug; 212. a breathable cap; 22. a vibration shaft; 221. a wear ring; 222. an oil slinger; 223. a gasket; 224. a spacer ring; 3. a sealing seat; 31. a first flange plate; 32. a bearing seat; 321. a rolling bearing; 33. a second flange plate; 331. a limiting ring; 332. a second seal ring; 4. an oil chamber; 5. a sealing structure; 51. an oil seal ring; 52. a seal ring; 6. an end cap; 7. an elastic connection cover; 8. a counterweight eccentric device; 9. and (5) fully welding.

Detailed Description

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through an intermediary, so to speak, communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Referring to fig. 1 to 7, an embodiment of the present invention discloses a vibration exciter and a screening device with a lubricating and heat dissipating structure, wherein the screening device includes a vibrating screen and a dewatering screen, and the vibrating screen and the dewatering screen are both provided with the vibration exciter with the lubricating and heat dissipating structure. The lubricating and heat-dissipating structure of the vibration exciter comprises two supporting plates 1 which are correspondingly arranged, two through shafts 2 which are arranged on the two supporting plates 1, and sealing seats 3 which are arranged at two ends of the through shafts 2 and are positioned between the through shafts 2 and the supporting plates 1; wherein, lead to axle 2 including hollow shaft 21 and the vibration axle 22 of setting in hollow shaft 21, seal receptacle 3 and hollow shaft 21 sealing connection, seal receptacle 3 and the rotatable cup joint of vibration axle 22, form oil pocket 4 between hollow shaft 21 and the vibration axle 22, oil pocket 4 extends to between seal receptacle 3 and the vibration axle 22, oil pocket 4 intussuseption is filled with lubricating oil, vibration axle 22 soaks in lubricating oil, be used for vibration axle 22 lubricated and cooling when the motion in seal receptacle 3, be equipped with seal structure 5 between seal receptacle 3 and the vibration axle 22, be used for restricting lubricating oil and ooze from between vibration axle 22 and the seal receptacle 3. Because the vibration shaft 22 is soaked in the lubricating oil, when the vibration shaft 22 rotates in the sealing seat 3, the lubricating oil not only lubricates the vibration shaft 22 to rotate in the sealing seat 3, but also absorbs heat generated by the rotation of the vibration shaft 22 in the sealing seat 3, so that the vibration shaft 22 is cooled and radiated; on the one hand, be favorable to optimizing the performance of vibration axle 22 internal rotation in seal receptacle 3, on the other hand, vibration axle 22 soaks in lubricating oil to promote vibration axle 22's cooling radiating efficiency, thereby prolong vibration axle 22's life-span. And a sealing structure 5 is arranged between the sealing seat 3 and the vibration shaft 22 to limit the lubricating oil in the oil cavity 4 from seeping out from between the sealing seat 3 and the vibration shaft 22, and because the lubricating oil cannot seep out from the oil cavity 4, the lubricating oil does not need to be supplemented frequently, so that the expenditure of the lubricating oil is reduced, and the cost for maintaining the vibration exciter is reduced.

In some embodiments, referring to fig. 1 to fig. 3, two supporting plates 1 are disposed in parallel, and the distance between the two supporting plates 1 is greater than or equal to the length of hollow shaft 21; two lead to axle 2 parallel arrangement, two hollow axle 21 parallel arrangement promptly, two vibration axle 22 parallel arrangement, and the axle center of hollow axle 21 and vibration axle 22 is located same straight line, and the axle center of two lead to axle 2 is located the coplanar and roughly is located the coplanar, and the axle center of two vibration axles 22 is located the coplanar and roughly is located the coplanar, when the turning to of two vibration axles 22 is opposite, so that order about the frequency of two vibration axles 22 and equal, thereby optimize the vibration performance of vibration exciter.

In some embodiments, referring to fig. 1 to 3, the sealing seat 3 includes a first flange 31, a bearing seat 32, and a second flange 33, wherein the first flange 31, the bearing seat 32, and the second flange 33 are sequentially disposed, two sides of the bearing seat 32 are respectively attached to the first flange 31 and the second flange 33, the first flange 31 is located between the two supporting plates 1, and the second flange 33 is located at an opposite outer side of the two supporting plates 1; the first flange 31 is hermetically connected with the hollow shaft 21, more specifically, the first flange 31 and the hollow shaft 21 are welded and fixed by full welding, that is, no welding seam exists between the first flange 31 and the hollow shaft 21, the first flange 31 is sleeved on the vibration shaft 22, and a gap between the first flange 31 and the vibration shaft 22 forms an oil chamber 4; referring to fig. 5 to 7, the bearing seat 32 is fixed to the support plate 1, and more specifically, the bearing seat 32 is fixed to the support plate 1 by non-full-welding, wherein the left lower portion or the right lower portion of the bearing seat 32 is fixed to the support plate 1 by full-welding, a full-welding portion 9 is disposed between the left lower portion or the right lower portion of the bearing seat 32 and the support plate 1 to reduce welding stress between the bearing seat 32 and the support plate 1, the bearing seat 32 is sleeved on the vibration shaft 22, and an oil cavity 4 is formed between the bearing seat 32 and the vibration shaft 22 at a desired gap; the second flange plate 33 is rotatably sleeved with the vibration shaft 22, a gap exists between the second flange plate 33 and the vibration shaft 22, the sealing structure 5 is arranged between the second flange plate 33 and the vibration shaft 22 to block the gap between the second flange plate 33 and the vibration shaft 22 and limit lubricating oil in the oil cavity 4 to seep out from the second flange plate 33 and the vibration shaft 22, on one hand, the lubricating oil is limited to seep out from the second flange plate 33 and the vibration shaft 22 to waste the lubricating oil, so that the expenditure of the lubricating oil is reduced, the maintenance cost of the vibration exciter is saved, on the other hand, the lubricating oil is limited to seep out to pollute the vibration exciter, and the cleanness of the vibration exciter is kept.

Furthermore, wear-resistant rings 221 are arranged at two ends of the vibration shaft 22, the wear-resistant rings 221 are sleeved with the vibration shaft 22, the wear-resistant rings 221 are located between the second flange plate 33 and the vibration shaft 22, a gap exists between the wear-resistant rings 221 and the second flange plate 33, and the wear-resistant rings 221 abut against between the sealing structure 5 and the vibration shaft 22, namely, the sealing structure 5 is located between the wear-resistant rings 221 and the second flange plate 33 to block the gap between the wear-resistant rings 221 and the second flange plate 33 so as to limit the lubricating oil in the oil chamber 4 from seeping out from between the wear-resistant rings 221 and the second flange plate 33. The second ring flange 33 has been seted up the mounting hole, vibration shaft 22 is located through the mounting hole cover to second ring flange 33, the pore wall of mounting hole is equipped with spacing ring 331, spacing ring 331 extends to vibration shaft 22 direction, there is the clearance between spacing ring 331 and the wear ring 221, form first spacing groove and second spacing groove between the pore wall of the both sides face of spacing ring 331 and mounting hole respectively, wherein, first spacing groove is located between spacing ring 331 and the backup pad 1, the second spacing groove is located the side that deviates from backup pad 1 of spacing ring 331, seal structure 5 card is put in first spacing groove and second spacing inslot. The sealing structure 5 comprises an oil sealing ring 51 and a sealing ring 52, wherein the oil sealing ring 51 is positioned in the first limiting groove and is respectively abutted against the wear-resisting ring 221, the second flange plate 33 and the limiting ring 331 so as to limit the lubricating oil in the oil cavity 4 from seeping out from between the wear-resisting ring 221 and the limiting ring 331; the seal ring 52 is positioned in the second limit groove and is respectively abutted against the wear-resisting ring 221, the second flange plate 33 and the limit ring 331, so that the lubricating oil in the oil chamber 4 is further limited from seeping out from between the wear-resisting ring 221 and the limit ring 331, wherein the seal ring 52 is a V-shaped seal ring.

In some embodiments, referring to fig. 1 to 3, a rolling bearing 321 is disposed in the bearing seat 32, the rolling bearing 321 is connected between the bearing seat 32 and the vibration shaft 22, and the rolling bearing 321 is sleeved with the vibration shaft 22 so that the vibration shaft 22 rotates in the bearing seat 32; an oil thrower 222 is arranged between the wear-resisting ring 221 and the rolling bearing 321, the oil thrower 222 is sleeved with the vibration shaft 22, when the oil thrower 222 rotates, lubricating oil in the oil cavity 4 is thrown away to slow down the movement of the lubricating oil between the second flange 33 and the wear-resisting ring 221, so that the oil pressure between the second flange 33 and the wear-resisting ring 221 is slowed down, further the oil pressure between the sealing structure 5, the wear-resisting ring 221 and the second flange 33 is slowed down, namely the oil pressure between the oil seal ring 51, the wear-resisting ring 221 and the second flange 33 and the oil pressure between the seal ring 52, the wear-resisting ring 221 and the second flange 33 are slowed down, so that the lubricating oil is prevented from seeping out from the space between the second flange 33 and the wear-resisting ring 221.

Further, a packing 223 is provided between the oil thrower 222 and the wear ring 221, and the packing 223 abuts between the oil thrower 222, the wear ring 221, and the vibration shaft 22 to restrict the penetration of the lubricating oil between the wear ring 221 and the vibration shaft 22, thereby restricting the leakage of the lubricating oil in the oil chamber 4 from between the vibration shaft 22 and the wear ring 221.

Further, a spacer 224 is provided between the oil thrower 222 and the rolling bearing 321, the vibration shaft 22 is fitted with the spacer 224, and the oil thrower 222 is spaced from the rolling bearing 321 by the spacer 224 to restrict the rolling bearing 321 from abutting against the oil thrower 222, thereby extending the life of the oil thrower 222. The outer diameter of the spacer ring 224 is smaller than the outer diameter of the oil slinger 222 to reduce the influence of the spacer ring 224 on the oil slinger performance of the oil slinger 222.

In some embodiments, referring to fig. 1 to 3, the opposite side surfaces of the first flange 31 and the second flange 33 are respectively provided with a first mounting groove and a second mounting groove, and the first mounting groove and the second mounting groove are arranged oppositely; the first flange 31 abuts against the bearing seat 32 through the first mounting groove, the first flange 31 abuts against the rolling bearing 321, the second flange 33 abuts against the bearing seat 32 through the second mounting groove, and the second flange 33 abuts against the rolling bearing 321, so that the rolling bearing 321 is positioned between the first flange 31 and the second flange 33; a first sealing ring is arranged between the groove bottom of the first mounting groove and the bearing seat 32 to limit lubricating oil in the oil cavity 4 from seeping out from between the first flange plate 31 and the bearing seat 32, a second sealing ring 332 is arranged between the groove bottom of the second mounting groove and the bearing seat 32 to limit lubricating oil in the oil cavity 4 from seeping out from between the second flange plate 33 and the bearing seat 32, wherein the first sealing ring and the second sealing ring 332 are symmetrically arranged on two sides of the bearing seat 32.

In some embodiments, referring to fig. 1 to 3, the hollow shaft 21 is provided with a first oil passage, which is in communication with the oil chamber 4, on one hand, for dissipating heat of the lubricating oil in the oil chamber 4, and on the other hand, for introducing the lubricating oil from the first oil passage into the oil chamber 4 or for discharging the lubricating oil from the oil chamber 4; the ventilation cap 212 is arranged in the first oil through pipe, so that on one hand, lubricating oil in the oil cavity 4 is limited to flow out of the first oil through pipe, and on the other hand, the lubricating oil in the oil cavity 4 is convenient to dissipate heat through the ventilation cap 212. The hollow shaft 21 is provided with a second oil through pipe which is communicated with the oil chamber 4 and is used for filling the lubricating oil into the oil chamber 4 or discharging the lubricating oil from the oil chamber 4, and an oil plug 211 is arranged in the second oil through pipe to limit the lubricating oil to pass through the second oil through pipe.

Furthermore, the vibration exciter is in the practical application process, that is, the screening device with the vibration exciter of the present application is in the practical application process, the screening device further includes a thin oil circulating device, the thin oil circulating device is respectively communicated with the first oil through pipe and the second oil through pipe, and is used for introducing lubricating oil into the oil cavity 4 from the first oil through pipe and introducing the lubricating oil in the oil cavity 4 from the second oil through pipe, the lubricating oil reciprocates and circularly moves back and forth in the oil cavity 4 and the thin oil circulating device, so that the lubricating oil is used as a heat conduction medium to transfer heat generated by the vibration shaft 22 to the thin oil circulating device, the thin oil circulating device removes impurities in the lubricating oil on one hand, and absorbs and dissipates heat of the lubricating oil on the other hand, so that the oil temperature between the first oil through pipe and the thin oil circulating device is lower than that between the second oil through pipe and the thin oil circulating device, and thereby dissipating heat generated by the vibration shaft 22 due to vibration.

In some embodiments, referring to fig. 1 to 3, the two ends of the vibration shaft 22 are provided with the weighted eccentric device 8 for enhancing the vibration of the vibration shaft 22, wherein the sealing ring 52 abuts between the weighted eccentric device 8 and the second flange 33; the both ends of vibration axle 22 are equipped with end cover 6 and elastic connection lid 7 respectively, and wherein, end cover 6 and elastic connection lid 7 are located two counter weight eccentric 8's relative outsides, and end cover 6 cup joints with the one end tip of vibration axle 22 and with counter weight eccentric 8 butt, and elastic connection lid 7 cup joints with the one end tip of vibration axle 22 and with counter weight eccentric 8 butt.

The utility model discloses an implement the principle and do: the two ends of a through shaft 2 of the vibration exciter are provided with sealing seats 3, the through shaft 2 comprises a hollow shaft 21 and a vibration shaft 22 arranged in the hollow shaft 21, the hollow shaft 21 is connected with the sealing seats 3 at the two ends in a sealing manner, the vibration shaft 22 is rotatably sleeved with the sealing seats 3 at the two ends, an oil cavity 4 is formed between the hollow shaft 21 and the vibration shaft 22, the oil cavity 4 extends to a position between the sealing seat 3 and the vibration shaft 22, lubricating oil is filled in the oil cavity 4, the vibration shaft 22 is soaked in the lubricating oil, when the vibration shaft 22 rotates in the sealing seats 3, the lubricating oil not only can be used for lubricating the vibration shaft 22 in the sealing seats 3 in a rotating manner, but also can absorb heat generated by the vibration shaft 22 in the sealing seats 3, so that the vibration shaft 22 can be cooled and radiated; on the one hand, be favorable to optimizing the performance of vibration axle 22 internal rotation in seal receptacle 3, on the other hand, vibration axle 22 soaks in lubricating oil to promote vibration axle 22's cooling radiating efficiency, thereby prolong vibration axle 22's life-span. And a sealing structure 5 is arranged between the sealing seat 3 and the vibration shaft 22 to limit the lubricating oil in the oil cavity 4 from seeping out from between the sealing seat 3 and the vibration shaft 22, and because the lubricating oil cannot seep out from the oil cavity 4, the lubricating oil does not need to be supplemented frequently, so that the expenditure of the lubricating oil is reduced, and the cost for maintaining the vibration exciter is reduced.

In the patent drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the patent; it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a vibration exciter with lubricated heat radiation structure which characterized in that includes:

two supporting plates (1) which are correspondingly arranged;

the two through shafts (2) are arranged on the two supporting plates (1); and

the sealing seats (3) are arranged at two ends of the through shaft (2) and are positioned between the through shaft (2) and the supporting plate (1);

wherein, lead to axle (2) including hollow shaft (21) and setting and being in vibration axle (22) in hollow shaft (21), seal receptacle (3) with hollow shaft (21) sealing connection, seal receptacle (3) with vibration axle (22) is rotatable to be cup jointed, hollow shaft (21) with form oil pocket (4) between vibration axle (22), oil pocket (4) extend to seal receptacle (3) with between vibration axle (22), oil pocket (4) intussuseption is filled with lubricating oil, vibration axle (22) soak in the lubricating oil, be used for vibration axle (22) are in lubricated and cooling during seal receptacle (3) internal motion, seal receptacle (3) with be equipped with seal structure (5) between vibration axle (22), be used for the restriction lubricating oil follow vibration axle (22) with ooze between seal receptacle (3).

2. The vibration exciter with the lubricating and heat-dissipating structure is characterized in that the sealing seat (3) comprises a first flange plate (31), a bearing seat (32) and a second flange plate (33) which are sequentially arranged, the first flange plate (31) is in sealing connection with the hollow shaft (21), the bearing seat (32) is fixed with the supporting plate (1), the second flange plate (33) is in rotatable sleeve connection with the vibration shaft (22), and the sealing structure (5) is arranged between the second flange plate (33) and the vibration shaft (22).

3. The vibration exciter with the lubricating and heat-dissipating structure as claimed in claim 2, wherein the vibration shaft (22) is provided with wear-resistant rings (221) at both ends, the wear-resistant rings (221) are located between the second flange (33) and the vibration shaft (22) and abut between the sealing structure (5) and the vibration shaft (22).

4. The vibration exciter with the lubricating and heat-dissipating structure according to claim 3, wherein the second flange (33) is provided with a mounting hole, the second flange (33) is sleeved with the vibration shaft (22) through the mounting hole, the wall of the mounting hole is provided with a limiting ring (331), a gap exists between the limiting ring (331) and the wear-resistant ring (221), and a first limiting groove and a second limiting groove are respectively formed between two side faces of the limiting ring (331) and the wall of the mounting hole; the sealing structure (5) comprises an oil seal ring (51) and a sealing ring (52), the oil seal ring (51) is located in the first limiting groove and is respectively abutted to the wear-resisting ring (221) and the second flange plate (33), and the sealing ring (52) is located in the second limiting groove and is respectively abutted to the wear-resisting ring (221) and the second flange plate (33).

5. The vibration exciter with the lubricating and heat-dissipating structure is characterized in that a rolling bearing (321) is arranged in the bearing seat (32), the rolling bearing (321) is connected between the bearing seat (32) and the vibrating shaft (22), and an oil thrower (222) is arranged between the rolling bearing (321) and the wear-resistant ring (221) and used for reducing oil pressure between the sealing structure (5) and the wear-resistant ring (221).

6. The vibration exciter with the lubricating and heat-dissipating structure according to claim 5, wherein a sealing gasket (223) is provided between the oil thrower disc (222) and the wear-resistant ring (221) to limit the lubricating oil from penetrating between the wear-resistant ring (221) and the vibration shaft (22).

7. The vibration exciter with the lubricating and heat-dissipating structure as claimed in claim 5, wherein a spacer ring (224) is arranged between the oil thrower disc (222) and the rolling bearing (321) for separating the oil thrower disc (222) from the rolling bearing (321), the spacer ring (224) is sleeved on the vibration shaft (22), and the outer diameter of the spacer ring (224) is smaller than that of the oil thrower disc (222).

8. The vibration exciter with the lubricating and heat-dissipating structure according to claim 2, wherein the first flange (31) and the second flange (33) are provided with a first mounting groove and a second mounting groove on opposite sides thereof, respectively; the first flange plate (31) is abutted to the bearing seat (32) through the first mounting groove, and a first sealing ring is arranged between the first mounting groove and the bearing seat (32); the second flange plate (33) is abutted to the bearing seat (32) through the second mounting groove, and a second sealing ring (332) is arranged between the second mounting groove and the bearing seat (32).

9. The vibration exciter with the lubricating and heat-dissipating structure as claimed in claim 1, wherein the hollow shaft (21) is provided with a first oil through pipe and a second oil through pipe, the first oil through pipe and the second oil through pipe are both communicated with the oil chamber (4), a ventilation cap (212) is arranged in the first oil through pipe and is used for ventilating the lubricating oil in the oil chamber (4), and an oil plug (211) is arranged in the second oil through pipe and is used for limiting the lubricating oil in the oil chamber (4) from overflowing from the second oil through pipe.

10. A screening device, characterized in that it is provided with an exciter with a lubricating and heat dissipating structure as claimed in any one of claims 1 to 9.

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