CN112594287A

CN112594287A - Eccentric vibration exciter for oil bath lubricating block

Info

Publication number: CN112594287A
Application number: CN202011606363.1A
Authority: CN
Inventors: 晏宏; 王行政; 张雨初; 李培主
Original assignee: Henan Chengdun Intelligent Technology Co ltd; Shibang Industrial Technology Group Co ltd; Henan Liming Heavy Industry Technology Co Ltd
Current assignee: Henan Chengdun Intelligent Technology Co ltd; Shibang Industrial Technology Group Co ltd; Henan Liming Heavy Industry Technology Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-02

Abstract

The invention provides an eccentric vibration exciter of an oil bath lubricating block, wherein the lower end of a bearing is immersed in lubricating oil, an isolating ring is also arranged in an oil groove, a through hole communicated with the lubricating oil is arranged on the isolating ring, sealing assemblies for sealing the bearing are arranged on two sides of a bearing seat, eccentric assemblies are arranged on two sides of an excitation shaft, the lower part of the bearing is immersed in the lubricating oil, the self-lubrication of the bearing is realized by the rotation of a bearing roller and an inner ring, the lubrication is uniform, and no dead angle exists; a groove is formed in the middle of the bearing seat, so that the storage capacity of lubricating oil is increased, and the replacement period of the lubricating oil is prolonged; the isolating ring divides the lubricating oil into a movable part and a static part, and the heat exchange speed is high; the vibration exciter is in a flying saucer shape, the mechanism is compact, and the bearing seat is in a convex cambered surface structure design, so that heat can be conveniently dissipated; the structure design of the screw plug hole on the periphery of the bearing seat can accurately control the adding amount of lubricating oil; the risk of thin oil leakage and pollution caused by a welded structure is eliminated from the design source of the precisely cast bearing seat.

Description

Eccentric vibration exciter for oil bath lubricating block

Technical Field

The invention relates to the technical field of vibrating screens, in particular to an eccentric vibration exciter for an oil bath lubricating block.

Background

With the wide application of vibration equipment in aggregate, metallurgy, mine and other industries in recent years, as a core component of vibration screening equipment, the performance of a vibration exciter is more and more emphasized, an early-stage vibration screen mostly adopts an eccentric shaft structure, a through shaft penetrates through the whole equipment, the installation and maintenance are very inconvenient, a larger maintenance space needs to be reserved, and the maintenance and capital construction cost of a user is higher; at the present stage, partial vibration screening equipment adopts a block eccentric structure, the number of counterweight columns needs to be increased and decreased when the exciting force is adjusted, the adjusting range of the exciting force is limited, stepless adjusting of the exciting force cannot be realized, and the adjusting of the exciting force cannot meet the requirements of customers.

At present, vibration screening equipment in China mostly adopts grease lubrication vibration exciters, and lubricating grease is supplemented in a manual or semi-automatic mode in a timing and quantitative mode according to the size of a bearing used by the vibration exciters, the lubricating mode has large starting torque, large energy consumption and short lubricating period, the addition amount of the lubricating grease is not easy to control, excessive lubricating grease is added to cause the heating of the bearing, and the service life of the bearing is shortened; and the addition amount is small, so that the bearing is lack of oil, the lubrication is not in place, the service life of the bearing is shortened, and the maintenance cost of the vibration exciter is high. The part of the vibration screening equipment adopts splash lubrication and is provided with an oil thrower, lubricating oil is thrown onto a bearing through the oil thrower, and a vibration exciter has high noise and high temperature rise when the equipment runs; by adopting the welding type cavity, the welding quality is not easy to control, and the problems of lubricating oil leakage, pollution and the like are easy to occur; lubricating oil can flow in the vibration exciter cavity, in case there is the place sealed not tight, lubricating oil in the whole vibration exciter cavity all needs to be changed, when changing the vibration exciter part simultaneously, needs all the evacuation of the lubricating oil in the vibration exciter, and the installation is maintained very inconveniently.

Disclosure of Invention

The invention aims to solve the technical problems of long lubricating period, no leakage and convenience in installation and maintenance, and provides an eccentric vibration exciter for an oil bath lubricating block.

The object of the invention is achieved in the following way:

the eccentric vibration exciter for the oil bath lubricating block comprises a vibration exciting shaft, a bearing seat and bearings, wherein the bearing seat is provided with an oil storage cavity, the bearings are oppositely arranged on the vibration exciting shaft, the vibration exciting shaft is connected with the bearing seat through the bearings, the bearings are arranged in the oil storage cavity of the bearing seat, an oil groove used for storing lubricating oil is formed between the bearings, the lower end of each bearing is immersed in the lubricating oil, an isolating ring is further arranged in the oil groove, through holes communicated with the lubricating oil are formed in the isolating ring, sealing assemblies for sealing the bearings are arranged on two sides of the bearing seat, and eccentric assemblies are arranged on two sides of.

The bearing seat is characterized in that an oil hole communicated with the oil storage cavity is formed in the outer side of the bearing seat, the oil hole comprises an upper oil hole, a lower oil hole and side oil holes, the upper oil hole is formed in the upper end of the bearing seat, the lower oil hole is formed in the lower end of the bearing seat, and the side oil holes are formed in two sides of the bearing seat.

The height of the side oil hole is the same as the liquid level height of lubricating oil in the oil storage chamber.

Shaft end pressure plates are arranged on the end surfaces of the two sides of the excitation shaft.

The through holes on the isolating ring are long holes, and the oil grooves are annular grooves.

The sealing assembly comprises a sealing ring, a bearing gland, a positioning ring, an oil baffle disc and a positioning sleeve, wherein the positioning ring is arranged outside the bearing, the oil baffle disc is arranged on one side, away from the bearing, of the positioning ring, the positioning sleeve is arranged on one side, away from the positioning ring, of the oil baffle disc, the bearing gland is arranged on the positioning sleeve, the bearing gland is fixedly connected with the bearing seat, the sealing ring is arranged on one side of the bearing gland, a felt oil seal is arranged between the bearing gland and the positioning sleeve, and an O-shaped ring is arranged between the positioning sleeve and an.

The sealing ring with bearing gland junction is equipped with labyrinth groove, the sealing ring with bearing gland mutually supports and forms labyrinth seal.

A sealing gasket is arranged between the bearing gland and the bearing seat, and the bearing gland is fixedly connected with the bearing seat through bolts.

The oil hole is a plug hole, a plug screw is arranged on the oil hole, and the plug screw is a magnetic plug screw.

The eccentric component comprises an eccentric block and a balancing weight, the eccentric block is fixedly connected with an excitation shaft, and the balancing weight is connected with the eccentric block through a bolt.

Compared with the prior art, the lower part of the bearing is immersed in lubricating oil, the self-lubrication of the bearing is realized by the rotation of the bearing roller and the inner ring, the lubrication is uniform, and no dead angle exists; a groove is formed in the middle of the bearing seat, so that the storage capacity of lubricating oil is increased, and the replacement period of the lubricating oil is prolonged; the isolating ring divides the lubricating oil into a movable part and a static part, and the heat exchange speed is high; the vibration exciter is in a flying saucer shape, the mechanism is compact, and the bearing seat is in a convex cambered surface structure design, so that heat can be conveniently dissipated; the structure design of the screw plug hole on the periphery of the bearing seat can accurately control the adding amount of lubricating oil; the risk of thin oil leakage and pollution caused by a welded structure is eliminated from the design source of the precisely cast bearing seat.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a schematic structural view of the spacer ring.

FIG. 4 is a schematic view of the labyrinth oil seal of the present invention

Fig. 5 is a schematic structural view of a prior art labyrinth seal.

The oil-saving bearing comprises a bearing seat 1, an eccentric block 2, a balancing weight 3, an eccentric bolt 4, an axial end pressure plate 5, an excitation shaft 6, a sealing ring 7, a bearing gland 8, a positioning ring 9, a bearing 10, a spacer ring 11, an oil baffle disc 12, a positioning sleeve 13, an O-shaped ring 14, a felt oil seal 15, a sealing gasket 16, a liquid level 17, a screw plug 18, an annular groove 19, an upper oil hole 20, a side oil hole 21, a lower oil hole 22, a through hole 23, a first labyrinth groove 24, a second labyrinth groove 25, an expansion cavity 26 and a throttling gap 27.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in the attached drawings 1 to 3, an eccentric vibration exciter of an oil bath lubricating block comprises a vibration exciting shaft 6, a bearing seat 1 provided with an oil storage cavity and bearings 10 oppositely arranged on the vibration exciting shaft 6, wherein the bearings 10 are oppositely arranged, the vibration exciting shaft 6 is connected with the bearing seat 1 through the bearings 10, the bearing seat 1 is shaped like a flying saucer, the middle diameter of the bearing seat 1 is the largest, the radial dimension is reduced along with the increase of the axial dimension, the outer surface is approximate to a convex arc-shaped surface, the heat dissipation area of the vibration exciter can be increased, the service life of the vibration exciter is prolonged, the bearings 10 are arranged in the oil storage cavity of the bearing seat 1, an oil groove 19 for storing lubricating oil is arranged between the bearings 10, preferably, the oil groove 19 is an annular groove and is integrally cast and formed on the bearing seat 1, on the premise of ensuring the structural strength, the internal space is increased, the storage capacity of the lubricating, the lower extreme submergence of bearing 10 is in lubricating oil, still is equipped with isolating ring 11 in oil groove 19, be equipped with the through-hole 23 of intercommunication lubricating oil on isolating ring 11, be equipped with the seal assembly of sealed bearing 10 in bearing frame 1 both sides, be equipped with eccentric subassembly in excitation shaft 6 both sides, two-layer about isolating ring 11 divides the lubricating oil of oil storage chamber bottom into, as preferred, isolating ring 11 installs in the notch department of oil groove 19, during the operation the isolating ring 11 outside be in relative static state promptly lubricating oil in the oil groove 19, the inboard lubricating oil of isolating ring 11 with bearing 10 interact, be in the developments, the inside, outside lubricating oil of isolating ring 11 takes place the heat exchange through-hole 23, promptly the inboard lubricating oil of isolating ring 11 with the heat that bearing 10 effect produced, can transmit the lubricating oil in the isolating ring 11 outside, the heat dissipation is more rapid, the service life of the vibration exciter is prolonged.

The outer side of the bearing seat 1 is provided with an oil hole communicated with an oil storage cavity, the oil hole comprises an upper oil hole 20, a lower oil hole 22 and side oil holes 21, the upper oil hole 20 is arranged at the upper end of the bearing seat 1, the lower oil hole 22 is arranged at the lower end of the bearing seat 1, the side oil holes 21 are arranged at two sides of the bearing seat 1, the height of the side oil holes 21 is the same as the height of the liquid level 17 of lubricating oil in the oil storage chamber, the periphery of the bearing seat 1 is provided with the upper oil hole 20, the side oil holes 21 and the lower oil holes 22 which are directly communicated with the oil storage cavity of the bearing seat 1, the height position of the side oil holes 21 corresponds to the height of the liquid level 17 of the lubricating oil in the oil storage chamber, when in use, the liquid level 17 of the lubricating oil can ensure that the lower part of the bearing 10 is immersed in the lubricating oil, the side oilhole 21 also is the symmetry setting, specifically is specifically for going up oilhole 20 and lower oilhole 22 respectively, the symmetry sets up, and each, the symmetry sets up about the side oilhole 21, can be convenient for install and use.

The end faces of the two sides of the excitation shaft 6 are provided with shaft end pressure plates 5 which are connected with the excitation shaft 6 through bolts, so that the installation and maintenance are convenient and rapid, the structure is more compact, and the eccentric assembly is prevented from being separated from the excitation shaft 6.

Through-hole 23 on the spacer ring 11 is rectangular hole, as preferred, through-hole 23 on the spacer ring 11 is circumference rectangular hole, and quantity can be a plurality ofly, evenly arrange in on the spacer ring 11, more be favorable to installation and heat dissipation, the shape of through-hole 23 also can be circular, rhombus or axial rectangular hole etc. its size, shape and the design of arranging need be taken into comprehensive consideration the structural strength of spacer ring 11, the separation and the heat transfer effect of lubricating oil, oil groove 19 are the annular groove, as preferred, oil groove 19 is the annular groove, through integrative casting shaping in on bearing frame 1, under the prerequisite of guaranteeing structural strength, increase inner space, promote the storage capacity of lubricating oil, the change cycle of extension lubricating oil.

The sealing assembly comprises a sealing ring 7, a bearing gland 8, a positioning ring 9, an oil baffle disc 12 and a positioning sleeve 13, wherein the positioning ring 9 is arranged at the outer side of a bearing 10, an oil baffle disc 12 is arranged at one side of the positioning ring 9, which is far away from the bearing 10, the positioning sleeve 13 is arranged at one side of the oil baffle disc 12, which is far away from the positioning ring 9, the bearing gland 8 is arranged on the positioning sleeve 13, the bearing gland 8 is fixedly connected with a bearing seat 1, the sealing ring 7 is arranged at one side of the bearing gland 8, a felt oil seal 15 is arranged between the bearing gland 8 and the positioning sleeve 13, an O-shaped ring 14 is arranged between the positioning sleeve 13 and an excitation shaft 6, the sealing assembly is arranged at both ends of the bearing seat 1, the oil baffle disc 12 is arranged at both sides of the excitation shaft 6, the oil baffle disc 12 blocks lubricating oil in the oil storage cavity from leaking, the positioning sleeve 13, the sealing ring 7 and the bearing gland 8 are matched for use.

Be equipped with first labyrinth groove 24 on the sealing ring 7, be equipped with second labyrinth groove 25 on the bearing gland 8, first labyrinth groove 24 and second labyrinth groove 25 mutually support and form the labyrinth oil blanket, be equipped with the labyrinth in the labyrinth oil blanket and curve the way, the labyrinth is curved to be formed by the combination in turn of a plurality of axial throttle clearance 27 and a plurality of radial expansion 26 cavity, the length of throttle clearance 27 increases in proper order in the direction of keeping away from excitation shaft 6, the length of expansion cavity 26 reduces in proper order in the direction of keeping away from excitation shaft 6.

The labyrinth curve in the description is newly designed, so that a larger resistance coefficient can be obtained, and the sealing effect is better. The following examples are used for verification:

remarking:

br =2.4as + b0, br-free flow width, a-structure coefficient/value 0.1, s-expansion cavity length, b 0-throttling gap width, Φ represents drag coefficient, n represents

number

1, 2, 3, 4 …, etc

Phi =1.5 × (1-b 0/l) ^2 when l < br, phi =0.0287 xs/b 0 when l > br

Phi = phi 1+ phi 2 … + phi n, with protocol a representing experimental data for the labyrinth seal of the present invention and protocol B being experimental data for the prior art labyrinth seal.

A sealing gasket 16 is arranged between the bearing gland 8 and the bearing seat 1, the bearing gland 8 is fixedly connected with the bearing seat 1 through a bolt, the bearing gland 8 is connected with the bearing seat 1 through a bolt, the sealing gasket 16 is arranged between the bearing gland 8 and the bearing seat 1, and silicone sealant is coated on the bolt during installation; by adopting the multiple sealing, the vibration exciter can effectively ensure that the inner gas and the outer gas are not directly exchanged, and the leakage or pollution of the lubricating oil is avoided, thereby greatly prolonging the service life of the lubricating oil.

The oil holes are screw plugs 18, screw plugs 18 are arranged on the oil holes, the screw plugs 18 are magnetic screw plugs 18, during maintenance, the uppermost screw plug 18 and the lowermost screw plug 18 are required to be opened before lubricating oil is filled, waste lubricating oil is completely discharged, then new lubricating oil is filled from the upper oil hole 20 until new lubricating oil flows out from the lower oil hole 22, then the lowermost screw plug 18 of the vibration exciter is installed, lubricating oil is continuously added until new lubricating oil flows out from the side oil holes 21 on two sides below the vibration exciter, the lubricating oil reaches the liquid level 17 which meets the working requirement, finally the residual screw plugs 18 are installed, the height position of the side oil holes 21 is set according to the size of the bearing model used by the vibration exciter, so that the accurate control of the adding amount of the lubricating oil is realized, the eccentric assembly comprises an eccentric block 2 and a balancing weight 3, the eccentric block 2 is fixedly connected with an excitation shaft 6, the balancing weight 3 is connected with the eccentric block 2 through the eccentric bolt 4, the balancing weight and the eccentric block 2 are connected through the bolt, when the exciting force is adjusted, only the same number of the balancing weights 3 need to be added or subtracted on the eccentric blocks 2 on the two sides of the vibration exciter, the thickness of the balancing weight 3 has various specifications, the external dimensions are consistent, and the stepless adjusting of the exciting force can be realized within the allowable range of the exciting force, so that the vibration exciter is convenient and rapid.

The working process of the invention is as follows: the bearing 10 is oppositely arranged on the excitation shaft 6, the bearings 10 are oppositely arranged, the excitation shaft 6 is connected with the bearing seat 1 through the bearings 10, the bearing seat 1 is shaped like a flying saucer, the diameter of the middle of the bearing seat 1 is largest, the radial dimension is reduced along with the increase of the axial dimension, the outer surface is similar to an arc-shaped surface which is convex outwards, the heat dissipation area of the vibration exciter can be increased, the service life of the vibration exciter is prolonged, the bearings 10 are arranged in an oil storage cavity of the bearing seat 1, oil grooves 19 for storing lubricating oil are arranged between the bearings 10, the oil grooves 19 are annular grooves and are integrally cast and formed on the bearing seat 1, on the premise of ensuring the structural strength, the inner space is increased, the storage capacity of the lubricating oil is improved, the replacement period of the lubricating oil is prolonged, the lower end of the bearing 10 is immersed in the lubricating oil, isolating rings 11 are also arranged in the, the two sides of the bearing seat 1 are respectively provided with a sealing assembly for sealing the bearing, the two sides of the excitation shaft 6 are provided with eccentric assemblies, the isolating ring 11 divides lubricating oil at the bottom of the oil storage cavity into an upper layer and a lower layer, the isolating ring 11 is arranged at the notch of the oil groove 19, the outer side of the isolating ring 11, namely the lubricating oil in the oil groove 19, is in a relatively static state during operation, the lubricating oil at the inner side of the isolating ring 11 interacts with the bearing 10 and is in a dynamic state, the lubricating oil at the inner side and the outer side of the isolating ring 11 generates heat exchange through the through hole 23, namely the lubricating oil at the inner side of the isolating ring 11 interacts with the bearing 10 to generate heat which can be transferred to the lubricating oil at the outer side of; the outer side of the bearing seat 1 is provided with an oil hole communicated with the oil storage cavity, the oil hole comprises an upper oil hole 20, a lower oil hole 22 and side oil holes 21, the upper oil hole 20 is arranged at the upper end of the bearing seat 1, the lower oil hole 22 is arranged at the lower end of the bearing seat 1, the side oil holes 21 are arranged at two sides of the bearing seat 1, the height of the side oil holes 21 is the same as the liquid level 17 of lubricating oil in the oil storage chamber, the periphery of the bearing seat 1 is provided with the upper oil hole 20, the side oil holes 21 and the lower oil holes 22 which are directly communicated with the oil storage cavity of the bearing seat 1, the height position of the side oil holes 21 corresponds to the height of the liquid level 17 of the lubricating oil in the oil storage chamber, when in use, the liquid level 17 of the lubricating oil can ensure that the lower part of the bearing 10 is immersed in the lubricating oil, the lubricating oil is driven by the rotation, specifically, the upper oil hole 20 and the lower oil hole 22 are respectively and symmetrically arranged, the side oil holes 21 are respectively and symmetrically arranged up and down, so that the installation and use are convenient, the shaft end pressure plates 5 are arranged on the end surfaces of the two sides of the excitation shaft 6 and are connected with the excitation shaft 6 through bolts, the installation and maintenance are convenient and quick, the structure is more compact, the eccentric assembly is prevented from being separated from the excitation shaft 6, the through holes 23 on the isolating ring 11 are long holes, the through holes 23 on the isolating ring 11 are circumferential long holes, the number of the through holes can be multiple, the through holes are uniformly arranged on the isolating ring 11 and are more favorable for installation and heat dissipation, the shape of the through holes 23 can be circular, rhombic or axial long holes, and the like, the size, shape and arrangement of the through holes need to be designed by comprehensively considering the structural strength of the isolating ring 11 and the separation and heat transfer effects of lubricating oil, the oil groove 19 is an annular groove, and is, on the premise of ensuring the structural strength, the internal space is increased, the storage capacity of lubricating oil is improved, the replacement period of the lubricating oil is prolonged, an oil baffle disc 12 is arranged on one side of a positioning ring 9 far away from a bearing 10, a positioning sleeve 13 is arranged on one side of the oil baffle disc 12 far away from the positioning ring 9, a bearing gland 8 is arranged on the positioning sleeve 13, the bearing gland 8 is fixedly connected with a bearing seat 1, a sealing ring 7 is arranged on one side of the bearing gland 8, a felt oil seal 15 is arranged between the bearing gland 8 and the positioning sleeve 13, an O-shaped ring 14 is arranged between the positioning sleeve 13 and an excitation shaft 6, sealing components are arranged at two ends of the bearing seat 1, oil baffle discs 12 are arranged at two sides of the excitation shaft 6, the lubricating oil baffle disc 12 blocks the leakage of the lubricating oil in an oil storage cavity, the positioning sleeve 13 is arranged on one side of the oil baffle disc 12, the bearing gland 8, the labyrinth seal comprises a sealing ring 7, a bearing gland 8, a sealing ring 7, a bearing gland 8, a bearing cover, a sealing ring, a bearing cover, a sealing gasket 16, a bearing cover 8 and a bearing seat 1, wherein a labyrinth groove is formed at the joint of the sealing ring 7 and the bearing gland 8, the sealing ring 7 and the bearing gland 8 are mutually matched to form labyrinth seal, the labyrinth seal is formed by alternately combining a plurality of sections of axial throttling gaps and a plurality of sections of radial expansion cavities, the lengths of the plurality of sections of axial throttling gaps are sequentially increased along the direction away from a shaft, the lengths of the plurality of radial expansion cavities are sequentially decreased along the direction away from the shaft, the sealing gasket 16 is arranged between the bearing gland 8 and the bearing seat; the multiple sealing is adopted, the direct exchange of inner and outer gases of the vibration exciter can be effectively ensured, the leakage or pollution of lubricating oil is avoided, the service life of the lubricating oil is greatly prolonged, the screw plugs 18 are arranged on the oil holes, the screw plugs 18 are magnetic screw plugs 18, during maintenance, the uppermost screw plug 18 and the lowermost screw plug 18 are required to be opened before the lubricating oil is filled, the waste lubricating oil is completely discharged, then new lubricating oil is filled from the upper oil hole 20 until new lubricating oil flows out from the lower oil hole 22, then the screw plug 18 at the lowermost part of the vibration exciter is installed, the lubricating oil is continuously added until new lubricating oil flows out from the oil holes 21 at the two sides below the vibration exciter, at the moment, the lubricating oil reaches the height of a liquid level 17 meeting the working requirement, finally the residual screw plugs 18 are installed, the height position of the oil holes 21 at the two sides is set according to the size of the bearing used by the vibration exciter, thereby realize the accurate control that lubricating oil added the volume, eccentric subassembly includes eccentric block 2 and balancing

weight

3, 2 fixed connection excitation shafts 6 of eccentric block, balancing weight 3 pass through bolted connection eccentric block 2, and the two passes through bolted connection, and during the adjustment exciting force, only need be in the vibration exciter both sides the eccentric block 2 go up increase, subtract same quantity balancing weight 3 can, balancing weight 3's thickness has multiple specification, and its appearance size is unanimous, in exciting force allowed range, can realize exciting force stepless adjustment, convenient and fast.

The lower part of the bearing 10 is immersed in lubricating oil, and the self-lubrication of the bearing 10 is realized by the rotation of the roller and the inner ring of the bearing 10, so that the bearing is uniform in lubrication and free of dead angles; a groove is formed in the middle of the bearing seat 1, so that the storage capacity of lubricating oil is increased, and the replacement period of the lubricating oil is prolonged; the isolating ring 11 divides the lubricating oil into a movable part and a static part, and the heat exchange speed is high; the vibration exciter is in a flying saucer shape, the mechanism is compact, and the bearing seat 1 is in a convex cambered surface structure design, so that heat can be conveniently dissipated; the peripheral screw plug 18 hole structural design of the bearing seat 1 can accurately control the adding amount of lubricating oil; the precisely cast bearing pedestal 1 avoids the risks of thin oil leakage and pollution caused by a welded structure from the design source.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed invention. Also, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit of the principles of the invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides an eccentric formula vibration exciter of oil bath lubricating block, includes excitation shaft, is equipped with the bearing frame in oil storage chamber and the bearing of relative setting on the excitation shaft, the excitation shaft passes through the bearing and connects the bearing frame, and the bearing setting is at the oil storage intracavity of bearing frame, its characterized in that: be equipped with the oil groove that is used for storing lubricating oil between the bearing, the lower extreme submergence of bearing still is equipped with the isolating ring in the oil groove, be equipped with the through-hole of intercommunication lubricating oil on the isolating ring, be equipped with sealed bearing's seal assembly in bearing frame both sides, be equipped with eccentric assembly in excitation shaft both sides.

2. The eccentric exciter of oil bath stick of claim 1, characterized in that: the bearing seat is characterized in that an oil hole communicated with the oil storage cavity is formed in the outer side of the bearing seat, the oil hole comprises an upper oil hole, a lower oil hole and side oil holes, the upper oil hole is formed in the upper end of the bearing seat, the lower oil hole is formed in the lower end of the bearing seat, and the side oil holes are formed in two sides of the bearing seat.

3. The eccentric exciter of oil bath stick of claim 2, characterized in that: the height of the side oil hole is the same as the liquid level height of lubricating oil in the oil storage chamber.

4. The eccentric exciter of oil bath stick of claim 1, characterized in that: shaft end pressure plates are arranged on the end surfaces of the two sides of the excitation shaft.

5. The eccentric exciter of oil bath stick of claim 1, characterized in that: the through holes on the isolating ring are long holes, and the oil grooves are annular grooves.

6. The eccentric exciter of oil bath stick of claim 1, characterized in that: the sealing assembly comprises a sealing ring, a bearing gland, a positioning ring, an oil baffle disc and a positioning sleeve, wherein the positioning ring is arranged outside the bearing, the oil baffle disc is arranged on one side, away from the bearing, of the positioning ring, the positioning sleeve is arranged on one side, away from the positioning ring, of the oil baffle disc, the bearing gland is arranged on the positioning sleeve, the bearing gland is fixedly connected with the bearing seat, the sealing ring is arranged on one side of the bearing gland, a felt oil seal is arranged between the bearing gland and the positioning sleeve, and an O-shaped ring is arranged between the positioning sleeve and an.

7. The eccentric exciter of oil bath stick of claim 6, characterized in that: the sealing ring with bearing gland junction is equipped with labyrinth groove, the sealing ring with bearing gland mutually supports and forms labyrinth seal.

8. The eccentric exciter of oil bath stick of claim 6, characterized in that: a sealing gasket is arranged between the bearing gland and the bearing seat, and the bearing gland is fixedly connected with the bearing seat through bolts.

9. The eccentric exciter of oil bath stick of claim 1, characterized in that: the oil hole is a plug hole, a plug screw is arranged on the oil hole, and the plug screw is a magnetic plug screw.

10. The eccentric exciter of oil bath stick of claim 1, characterized in that: the eccentric component comprises an eccentric block and a balancing weight, the eccentric block is fixedly connected with an excitation shaft, and the balancing weight is connected with the eccentric block through a bolt.