CN217558790U

CN217558790U - Dry oil lubrication flange type vibration exciter

Info

Publication number: CN217558790U
Application number: CN202221876867.XU
Authority: CN
Inventors: 张必强; 李静; 姜世宇; 张�林; 张培新
Original assignee: Xinxiang Debang Machinery Co ltd
Current assignee: Xinxiang Debang Machinery Co ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-10-11
Anticipated expiration: 2032-07-15

Abstract

The utility model belongs to a dry oil lubrication flange type vibration exciter; the bearing comprises a flange type bearing seat, a rotating shaft is arranged in the flange type bearing seat, two groups of cylindrical roller bearings are arranged on the rotating shaft corresponding to the inside of the flange type bearing seat, a bearing end cover connected with the flange type bearing seat is arranged outside the cylindrical roller bearings, a lip-shaped oil seal is arranged on the inner side wall of the bearing end cover close to the rotating shaft, and the flange type bearing seat, the bearing end cover and the lip-shaped oil seal form a closed dry lubricating oil cavity; the flange type bearing seat is provided with an oil pipe, and the oil pipe is communicated with the closed dry lubricating oil cavity through an oil way on the flange type bearing seat; the oil-saving lubricating device has the advantages of simple and compact structure, convenience in production, processing and assembly, and capability of avoiding oil leakage particularly for dry oil lubrication on the basis of saving oil grooves, thin oil seals and labyrinth structures.

Description

Grease lubrication flange type vibration exciter

Technical Field

The utility model belongs to the technical field of the vibration exciter, in particular to lubricated flange formula vibration exciter of drier oil.

Background

The vibration exciter is a device which is added on the vibrating mechanical equipment and is used for generating exciting force, is an important component of the vibrating machinery, and can enable the vibrating mechanical equipment to move according to a certain track so as to achieve the purpose of conveying or screening materials. The vibration exciter bears large torque and vibration in the using process, and faults are easily caused on the basis of the vibration exciter; the conventional vibration exciter has unreasonable structure, poor reliability and short service life, and seriously influences the normal operation of vibration mechanical equipment, thereby causing unnecessary economic loss.

The bearing is a key part of the vibration exciter, the service life and the reliability of the vibration exciter are directly influenced by the performance of the bearing, and a good lubricating structure in the vibration exciter is an important measure for prolonging the service life and the reliability of the bearing; most of the prior bearings adopt a thin oil lubrication mode, and because the lubrication mode adopts liquid lubricating oil, an oil groove, a thin oil seal and a labyrinth structure are required to be arranged in a bearing chamber, the structural form increases the installation size of the vibration exciter, and the defects of complex structure, high processing and production cost and complex installation process exist; further, the vibration exciter in the prior art adopts the form of liquid lubricating oil, and the most important defect is that the problem of lubricating oil leakage is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect among the prior art, and provide one kind on the basis of saving oil groove, thin oil blanket and labyrinth structure, have simple structure compactness, production, processing and equipment convenience, be particularly useful for the dry oil lubrication can avoid appearing the dry oil lubrication flange formula vibration exciter of oil leak.

The above technical object of the present invention can be achieved by the following technical solutions:

a dry oil lubrication flange type vibration exciter comprises a flange type bearing seat, wherein a rotating shaft is installed in the flange type bearing seat, two groups of cylindrical roller bearings are installed on the rotating shaft corresponding to the inside of the flange type bearing seat, a bearing end cover connected with the flange type bearing seat is arranged outside each cylindrical roller bearing, a lip-shaped oil seal is arranged on the inner side wall of each bearing end cover close to the rotating shaft, and the flange type bearing seat, the bearing end cover and the lip-shaped oil seal form a closed dry lubrication oil cavity; and an oil pipe is arranged on the flange type bearing seat and is communicated with the closed dry lubricating oil cavity through an oil way on the flange type bearing seat.

As further optimization of the technical scheme, a retainer ring with holes is installed on the corresponding flange type bearing seat between the two groups of cylindrical roller bearings, an oil inlet is formed in the top of the retainer ring with holes, and oil outlets communicated with the oil inlet are respectively formed in two sides of the retainer ring with holes.

As a further preferred aspect of the present technical solution, one end of the oil pipe is communicated with the outside of the flange type bearing seat, the other end of the oil pipe is communicated with an oil path, the oil path is communicated with the oil inlet, and the two oil outlets are respectively disposed at the inner sides of the respective corresponding cylindrical roller bearings.

As a further preferred aspect of the present technical solution, the flange type bearing housing includes a bearing housing body and a clamping ring with a bolt hole disposed outside the bearing housing body.

As a further preferred feature of the present invention, the rotating shaft corresponding to the outer side of the bearing end cover is provided with a fixed eccentric block and an adjustable eccentric block in sequence.

As a further preferable mode of the present technical solution, a key groove for mounting a motor or a vibration exciter is formed on the rotating shaft corresponding to the outer side of the adjustable eccentric block.

As a further preferred aspect of the present technical solution, a protective cover is disposed outside the bearing end cover, and the fixed eccentric block and the adjustable eccentric block are located inside the protective cover.

According to the dry oil lubrication flange type vibration exciter manufactured according to the scheme, dry lubricating oil enters the interior of the dry oil lubrication flange type vibration exciter through the sealed dry lubricating oil cavity and is matched with the cylindrical roller bearing to achieve lubricating and radiating effects, compared with a traditional thin oil lubrication mode, the structure is small in oil injection amount, an oil groove is omitted to reduce the size of the whole vibration exciter, a thin oil seal and a labyrinth structure are omitted, the processing and assembling difficulty is reduced, and therefore the purpose of reducing the production cost is achieved; the lip-shaped oil seal can ensure that the whole dry lubricating oil cavity is in a closed state so as to prevent external dust and impurities from entering the cavity and prevent the dry lubricating oil from escaping; the check rings with holes are arranged, so that dry lubricating oil can simultaneously enter the two corresponding groups of cylindrical roller bearings respectively, and the effects of heat dissipation and lubrication are achieved; the lubricating grease has the advantages of simple structure, convenience in processing, simplicity and convenience in installation and low production and manufacturing cost, grease lubrication is used in cooperation to replace thin oil lubrication, the problem of leakage of thin oil lubrication which often occurs is solved, and meanwhile, the lubricating grease can effectively lubricate the bearing by utilizing good physical properties and lubricating properties of the lubricating grease and a corresponding dry lubricating oil cavity structure, so that the normal and reliable operation of the vibration exciter is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

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

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of a portion B in fig. 1.

Fig. 4 is the structure schematic diagram of the pressing ring with bolt holes of the utility model.

In the upper diagram:

1. a flange-type bearing seat; 2. a rotating shaft; 3. a cylindrical roller bearing; 4. a bearing end cap; 5. a lip seal; 6. fixing the eccentric block; 7. an adjustable eccentric block; 8. an oil pipe; 9. a retainer ring with a hole; 10. pressing rings with bolt holes; 11. a protective cover; 12. a keyway; 13. an oil path; 14. an oil inlet; 15. and an oil outlet.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model relates to a dry oil lubrication flange type vibration exciter, including flange type bearing frame 1, install rotation axis 2 in the flange type bearing frame 1, install two sets of cylindrical roller bearings 3 on the rotation axis 2 corresponding in the flange type bearing frame 1, the outside of cylindrical roller bearing 3 is equipped with the bearing end cover 4 that links to each other with flange type bearing frame 1, is equipped with lip oil seal 5 on the inside wall of bearing end cover 4 near the position of rotation axis 2, and above-mentioned flange type bearing frame 1, bearing end cover 4 and lip oil seal 5 form an inclosed dry lubrication oil cavity; an oil pipe 8 is arranged on the flange type bearing seat 1, and the oil pipe 8 is communicated with the closed dry lubricating oil cavity through an oil way 13 on the flange type bearing 1. In the utility model, the flange type bearing seat 1, the bearing end cover 4 and the lip-shaped oil seal 5 form a closed dry lubricating oil cavity, and the closed dry lubricating oil cavity is filled with lubricating grease through an oil pipe 8, preferably lithium grease; the structure is simple, the cylindrical roller bearing 3 can be effectively sealed, the bearing can be lubricated and cooled by matching with lithium-based grease, the normal operation of the bearing is ensured, and the service life of the vibration exciter is prolonged; the traditional form of thin oil lubrication is disclosed in patent numbers: 201810620849.7, the patent name is: the patent uses lubricating oil storage chamber (equivalent to oil groove), thin oil seal (equivalent to oil seal), labyrinth groove (matched labyrinth cover), oil slinger, oil stirring teeth and other structures, which causes the characteristics of high manufacturing cost, complex installation process and high production cost, and the oil leakage phenomenon is easy to occur after the oil seal, the sealing ring and the like are aged because of rare oil; the utility model abandons the traditional thinking, adopts the form of grease lubrication to improve the grease leakage-proof capability on the basis of reducing the structure of the related sealing part, and has the characteristics of low processing cost, small difficulty in installation and maintenance and reduction of the volume and cost of the whole vibration exciter; meanwhile, the lip-shaped oil seal 5 is arranged to enable the dry lubricating oil cavity to be in a closed state, so that dust and impurities are prevented from entering, the service lives of lubricating oil and a bearing are prolonged, and the phenomenon that lubricating grease escapes is prevented.

Furthermore, a retainer ring with holes 9 is installed on the corresponding flange type bearing seat 1 between the two groups of cylindrical roller bearings 3, an oil inlet 14 is arranged at the top of the retainer ring with holes 9, and oil outlets 15 communicated with the oil inlet 14 are respectively arranged at two sides of the retainer ring with holes 9. The utility model adopts the structure form of the check ring with holes 9, so that the grease can be evenly distributed as much as possible under the extrusion action of the subsequent grease after the grease enters the check ring with holes 9, thereby achieving the effect of effectively lubricating and radiating the two groups of cylindrical roller bearings 3; therefore, the defect that the service life of the bearing and the vibration exciter is influenced because the grease in one group of cylindrical roller bearing 3 is too much and the grease in the other group of cylindrical roller bearing 3 is too little is avoided.

Furthermore, one end of the oil pipe 8 is communicated with the outside of the flange type bearing seat 1, the other end of the oil pipe 8 is communicated with an oil path 13, the oil path 13 is communicated with an oil inlet 14, and two oil outlets 15 are respectively arranged at the inner sides of the respective corresponding cylindrical roller bearings 3. The utility model discloses use oil pipe 8 to oiling in the inclosed dry lubrication oil cavity, the in-process lubricating grease of oiling passes through in oil pipe 8 gets into oil circuit 13 to in getting into foraminiferous retaining ring 9 through oil circuit 13 and oil inlet 14, at the in-process that lasts the oiling, lubricating grease divide into two parts, enters into respectively through two oil-outs 15 and in the cylindrical roller bearing 3 corresponding with oil-out 15.

Further, the flange type bearing seat 1 comprises a bearing seat body and a pressing ring 10 with a bolt hole, wherein the pressing ring is arranged outside the bearing seat body. Through the arrangement, the subsequent installation of the utility model can be facilitated, and the flange type bearing seat 1 and the pressing ring 10 with the bolt hole can be of an integral structure or a split structure; when the two are in a split structure, the two can be tightly connected together by clamping, welding, bolt fixing and other forms.

Furthermore, a fixed eccentric block 6 and an adjustable eccentric block 7 are sequentially arranged on the rotating shaft 2 corresponding to the outer side of the bearing end cover 4. The utility model discloses a 2 high-speed rotations of rotation axis in the use drive eccentric block 6 and produce the exciting force, and cylindrical roller bearing 3 receives the radial force to generate heat acutely, the utility model discloses the lubrication and the heat dissipation of cylindrical roller bearing 3 are realized to the corresponding structure of lubricating grease cooperation in the accessible front, also can adjust the radial force that eccentric block 7 received in order to reduce cylindrical roller bearing 3 according to actual conditions simultaneously.

Furthermore, a key groove 12 for installing a motor or an exciter is formed on the rotating shaft 2 corresponding to the outer side of the adjustable eccentric block 7. The key groove 12 is arranged to facilitate installation of a motor or other vibration exciters, so as to achieve the purpose of facilitating assembly.

Further, a protective cover 11 is arranged on the outer side of the bearing end cover 4, and the fixed eccentric block 6 and the adjustable eccentric block 7 are located inside the protective cover 11. Through setting up protection casing 11 not only can realize blockking of outside dust and impurity, can also prevent simultaneously that the field operation personnel from taking place the condition that the mistake bumped when fixed eccentric block 6 and adjustable eccentric block 7 are rotatory.

The utility model discloses a theory of operation does: the utility model has the characteristics of simple structure and reasonable design, the high-speed rotation of axis of rotation 2 in the use, drive eccentric block 6 and produce the exciting force, cylindrical roller bearing 3 receives radial force to generate heat acutely, and the on-the-spot operating personnel regularly quantitative through oil pipe 8 fills lubricating grease to airtight dry lubricating oil cavity, and lubricating grease gets into cylindrical roller bearing 3 inside roller high-speed rotation, and lubricating grease lubricates and cools off the bearing, guarantees that the bearing normally operates; in the actual use process, the amount of the lubricating grease injected into the dry lubricating oil cavity is 1/3 to 1/2 of the volume of the whole cavity, the lithium-based grease has good lubricating performance, the working temperature is between-20 ℃ and 120 ℃, the lithium-based grease is completely enough to cope with the heavy-load heating environment of the vibration exciter, and the good lubricating performance can greatly reduce the heat productivity; the lithium grease has stable physical state, is not easy to extrude and leak, is durable, and can work normally for 2000 hours even with excellent quality; the oil filling times are greatly reduced; the utility model has the characteristics of simple structure, processing production low in manufacturing cost replaces thin oil lubrication completely with fat lubrication, has solved the problem of revealing of the often appearance of thin oil lubrication, utilizes the good physical properties and the lubricating property of lubricating grease simultaneously, reduces calorific capacity of bearing, has guaranteed the normal reliable operation of vibration exciter.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dry oil lubrication flange formula vibration exciter, includes flange formula bearing frame (1), installs rotation axis (2) in flange formula bearing frame (1), its characterized in that: two groups of cylindrical roller bearings (3) are mounted on the rotating shaft (2) corresponding to the inner part of the flange type bearing seat (1), a bearing end cover (4) connected with the flange type bearing seat (1) is arranged outside the cylindrical roller bearings (3), a lip-shaped oil seal (5) is arranged on the inner side wall of the bearing end cover (4) close to the rotating shaft (2), and the flange type bearing seat (1), the bearing end cover (4) and the lip-shaped oil seal (5) form a closed dry lubricating oil cavity; an oil pipe (8) is arranged on the flange type bearing seat (1), and the oil pipe (8) is communicated with the closed dry lubricating oil cavity through an oil way (13) on the flange type bearing seat (1).

2. The dry oil lubrication flange vibration exciter according to claim 1, wherein: a retainer ring with holes (9) is installed on a corresponding flange type bearing seat (1) between the two groups of cylindrical roller bearings (3), an oil inlet (14) is formed in the top of the retainer ring with holes (9), and oil outlets (15) communicated with the oil inlet (14) are formed in two sides of the retainer ring with holes (9) respectively.

3. The dry oil lubricated flange vibration exciter according to claim 2, wherein: one end of the oil pipe (8) is communicated with the outside of the flange type bearing seat (1), the other end of the oil pipe (8) is communicated with an oil way (13), the oil way (13) is communicated with an oil inlet (14), and two oil outlets (15) are respectively arranged at the inner sides of the cylindrical roller bearings (3) which respectively correspond to the oil outlets.

4. The dry oil lubrication flange vibration exciter according to claim 1, wherein: the flange type bearing seat (1) comprises a bearing seat body and a pressing ring (10) with a bolt hole, wherein the pressing ring is arranged outside the bearing seat body.

5. The dry oil lubrication flange vibration exciter according to claim 1, wherein: and a fixed eccentric block (6) and an adjustable eccentric block (7) are sequentially arranged on the rotating shaft (2) corresponding to the outer side of the bearing end cover (4).

6. The dry oil lubricated flange vibration exciter according to claim 5, wherein: a key groove (12) for mounting a motor or a vibration exciter is formed in the rotating shaft (2) corresponding to the outer side of the adjustable eccentric block (7).

7. The dry oil lubricated flange vibration exciter according to claim 5, wherein: the outer side of the bearing end cover (4) is provided with a protective cover (11), and the fixed eccentric block (6) and the adjustable eccentric block (7) are located inside the protective cover (11).