CN220134255U - Novel bearing assembly structure for large-scale silt pump - Google Patents

Abstract

The utility model discloses a novel bearing assembly structure for a large-sized silt pump, which comprises a shaft rod, wherein two self-aligning roller bearings are sleeved on the outer surface of the shaft rod, bearing bushes are arranged on the outer surfaces of the self-aligning roller bearings, a bearing body is arranged between the outer sides of the two bearing bushes, a thrust bearing part is arranged between the shaft rod and the bearing body, sealing parts are arranged on two sides of the bearing body, a pipe plug is arranged on the bearing body, and a breather is arranged on the bearing body.

Description

Novel bearing assembly structure for large-scale silt pump

Technical Field

The utility model relates to the technical field of sand pumps, in particular to a novel bearing assembly structure for a large-scale sand pump.

Background

The sand pump is a mechanical device which increases the energy of a solid-liquid mixed medium by the action of centrifugal force (rotation of an impeller of the pump) and converts electric energy into kinetic energy and potential energy of the medium. The method is mainly applicable to: the method is commonly used for working conditions such as a relay pump station of a shield system, a dredger for dredging a river channel, blowing sand and filling sea and the like in the fields of industries such as mines, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and the like.

The bearing assembly on the existing large-scale sand pump adopts a pair of single-row tapered roller bearings to bear axial force and radial force, the axial force is overlarge, the service life of the bearing assembly is influenced, the lubricating mode of the existing bearing assembly is grease lubrication, the lubricating space is narrow, heat at a bearing part is easy to form and accumulate in the running process, the temperature of the bearing is too high, and the temperature of the bearing is easy to be too high, so that the service life of the bearing is not ideal.

Disclosure of Invention

The utility model aims to provide a novel bearing assembly structure for a large-scale silt pump, which solves the following technical problems: the bearing assembly on the existing large-scale sand pump adopts a pair of single-row tapered roller bearings to bear axial force and radial force, the axial force is overlarge, the service life of the bearing assembly is influenced, the lubricating mode of the existing bearing assembly is grease lubrication, the lubricating space is narrow, heat at a bearing part is easy to form and accumulate in the running process, the temperature of the bearing is too high, and the temperature of the bearing is easy to be too high, so that the service life of the bearing is not ideal.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a novel large-scale silt particle pump bearing assembly structure, includes the axostylus axostyle, the surface cover of axostylus axostyle is equipped with aligning roller bearing, aligning roller bearing is provided with two, be provided with the bearing bush on aligning roller bearing's the surface, two be provided with the bearing body between the outside of bearing bush, be provided with thrust bearing part between axostylus axostyle and the bearing body, the both sides of bearing body all are provided with sealing member, be provided with the pipe plug on the bearing body, be provided with the breather on the bearing body, the surface fixedly connected with radiator fin of bearing body, radiator fin is provided with a plurality of, the surface fixedly connected with conducting strip of bearing body, the conducting strip is provided with a plurality of.

As a further scheme of the utility model: the sealing component comprises a blocking sleeve and a bearing gland, wherein the blocking sleeve is arranged in two, the blocking sleeve is sleeved on the outer surface of the shaft rod, the bearing gland is fixedly connected to the side edge of the bearing body, the two bearing glands are arranged, the bearing gland is arranged on the outer side of the blocking sleeve, and the side edge of the bearing gland is provided with a pressing plate.

As a further scheme of the utility model: the thrust bearing component comprises a spherical roller thrust bearing and a thrust disc, wherein the spherical roller thrust bearing and the thrust disc are sleeved on the outer surface of the bearing body, a guide pin penetrates through the thrust disc, a belleville spring is arranged between the guide pin and the thrust disc, an elastic retainer ring is fixedly connected to the guide pin, a split snap ring is fixedly connected to the spherical roller thrust bearing, a locking ring is arranged on the split snap ring, and an anti-rotation key is arranged on the thrust disc.

As a further scheme of the utility model: and the bearing gland is communicated with an oil cup.

As a further scheme of the utility model: and a lip sealing ring is arranged between the bearing gland and the retaining sleeve.

Advantageous effects

The utility model provides a novel bearing assembly structure for a large-scale silt pump. Compared with the prior art, the method has the following beneficial effects:

(1) The heat removal of the inside of the bearing body is realized by utilizing the breather, the contact area of the bearing body and air is increased by utilizing the radiating fins, and the cooling of lubricating oil in the bearing body is facilitated, so that the service performance and the service life of the bearing are improved, and meanwhile, the heat conduction of the inside of the bearing body is accelerated by utilizing the heat conducting fin, and the heat dissipation is facilitated by utilizing the radiating fins.

(2) The axial force is borne by the thrust bearing component, and the radial force is borne by the self-aligning roller bearing alone, so that the problem of insufficient bearing force of the original structure is solved; through injecting thin oil lubrication into the pipe plug to lubricate the pipe plug, a thin oil cylinder structure is adopted, and compared with a cylindrical lubrication cavity, the volume of the lower half part of the lubrication cavity is increased, the working temperature of the bearing is ensured to be in a reasonable interval, the lubrication effect is improved, and the working temperature of the bearing is ensured to be in a reasonable interval, so that the lubrication effect is improved.

Drawings

FIG. 1 is a front view of the internal structure of the present utility model;

FIG. 2 is an enlarged view of a portion of the utility model at A in FIG. 1;

fig. 3 is a partial enlarged view of the present utility model at B in fig. 1.

In the figure: 1. a shaft lever; 2. a self-aligning roller bearing; 3. a bearing bush; 4. a bearing body; 5. a thrust bearing component; 51. spherical roller thrust bearings; 52. a thrust plate; 53. a guide pin; 54. a circlip; 55. a split clasp; 56. a locking ring; 57. an anti-rotation key; 58. a belleville spring; 6. a sealing member; 61. a blocking sleeve; 62. a bearing gland; 63. a compacting plate; 7. plugging a pipe; 8. an aerator; 9. a heat radiation fin; 10. a heat conductive sheet; 11. an oil cup; 12. and a lip seal ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the utility model discloses a novel bearing assembly structure for a large-sized silt pump, which comprises a shaft rod 1, wherein the outer surface of the shaft rod 1 is sleeved with a self-aligning roller bearing 2, the self-aligning roller bearing 2 is provided with two bearing bushes 3, a bearing body 4 is arranged between the outer sides of the two bearing bushes 3, a thrust bearing part 5 is arranged between the shaft rod 1 and the bearing body 4, sealing parts 6 are arranged on two sides of the bearing body 4, a pipe plug 7 is arranged on the bearing body 4, a breather 8 is arranged on the bearing body 4, the breather 8 can be used for exhausting air, a heat radiating fin 9 is fixedly connected to the outer surface of the bearing body 4, a plurality of heat radiating fins 9 are arranged, the outer surface of the bearing body 4 is fixedly connected with a heat conducting fin 10, the heat conducting fin 10 is arranged in a plurality, the inner part of the bearing body 4 is subjected to heat removal through the breather 8, the contact area between the bearing body 4 and the air is increased, the cooling of lubricating oil in the bearing body 4 is facilitated, so that the service performance and service life of the bearing are improved, and simultaneously, the heat is conducted through the heat conducting fin 9 in the heat conducting mode.

The sealing part 6 comprises a retaining sleeve 61 and a bearing gland 62, wherein the retaining sleeve 61 is provided with two, the retaining sleeve 61 is sleeved on the outer surface of the shaft rod 1, the bearing gland 62 is fixedly connected to the side edge of the bearing body 4, the bearing gland 62 is provided with two, the bearing gland 62 is arranged on the outer side of the retaining sleeve 61, and the side edge of the bearing gland 62 is provided with a pressing plate 63.

The thrust bearing component 5 comprises a spherical roller thrust bearing 51 and a thrust disc 52, wherein the spherical roller thrust bearing 51 and the thrust disc 52 are sleeved on the outer surface of the bearing body 4, a guide pin 53 penetrates through the thrust disc 52, a belleville spring 58 is arranged between the guide pin 53 and the thrust disc 52, a circlip 54 is fixedly connected to the guide pin 53, a split snap ring 55 is fixedly connected to the spherical roller thrust bearing 51, a locking ring 56 is arranged on the split snap ring 55, an anti-rotation key 57 is arranged on the thrust disc 52 and penetrates into the outer ring of the spherical roller thrust bearing 51 to prevent the spherical roller thrust bearing 51 from rotating when the outer ring runs, and the thrust disc 52 is connected with the bearing body through an anti-rotation pin which can fix the position of the thrust disc 52. Axial force is born through the thrust bearing part 5, and radial force is born independently by the self-aligning roller bearing 2, so that the problem of insufficient bearing force of the original structure is solved; through injecting thin oil lubrication into the pipe plug 7 to lubricate the pipe plug, a thin oil cylinder structure is adopted, and compared with a cylindrical lubrication cavity, the volume of the lower half part of the lubrication cavity is increased, the working temperature of the bearing is ensured to be in a reasonable interval, the lubrication effect is improved, and the working temperature of the bearing is ensured to be in a reasonable interval, so that the lubrication effect is improved.

The bearing gland 62 is communicated with the oil cup 11, and the sealing effect and the service life of the sealing part 6 are improved by injecting oil into the oil cup 11.

A lip seal 12 is provided between the bearing gland 62 and the collar 61.

And all that is not described in detail in this specification is well known to those skilled in the art.

The working principle of the utility model is as follows: the axostylus axostyle 1 receives axial force through thrust bearing part 5 bearing alone, bear radial force by aligning roller bearing 2, in order to solve the problem that original structure tolerance is not enough, be convenient for axostylus axostyle 1 is more stable when rotating, through pour into thin oil lubrication in pipe plug 7 department and lubricate it, adopt thin oil drum type structure, and compare in the lubricated chamber of tube-shape, increase the latter half volume of lubricated chamber, guarantee the operating temperature of bearing at reasonable interval, with the lubrication effect, simultaneously, through oiling to oil cup 11 department, improve sealing effect and the life of sealing member 6, be located the inside lubricating oil of bearing body 4 can produce the heat when axostylus axostyle 1 is in the rotation state, realize carrying out the heat extraction to the inside of bearing body 4 through utilizing breather 8, utilize radiator fin 9, increase the area of contact of bearing body 4 and air, be favorable to the inside lubricating oil of bearing body 4 cools down, thereby make the performance and life-span of bearing obtain improving, simultaneously, utilize piece 10, accelerate the inside heat of bearing body 4 conduct, and then cooperate radiator fin 9, be favorable to the heat dissipation.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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.

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

Claims (5)

1. Novel bearing assembly structure for large-scale silt pump, including axostylus axostyle (1), its characterized in that: the bearing is characterized in that the outer surface of the shaft rod (1) is sleeved with a self-aligning roller bearing (2), the self-aligning roller bearing (2) is provided with two bearing bushes (3) on the outer surface of the self-aligning roller bearing (2), two bearing bodies (4) are arranged between the outer sides of the bearing bushes (3), thrust bearing parts (5) are arranged between the shaft rod (1) and the bearing bodies (4), sealing parts (6) are arranged on two sides of the bearing bodies (4), a pipe plug (7) is arranged on the bearing bodies (4), a breather (8) is arranged on the bearing bodies (4), heat dissipation fins (9) are fixedly connected to the outer surfaces of the bearing bodies (4), the heat dissipation fins (9) are provided with a plurality of heat dissipation fins, the outer surfaces of the bearing bodies (4) are fixedly connected with heat conduction fins (10), and the heat conduction fins (10) are provided with a plurality of heat conduction fins.

2. A new bearing assembly structure for a large-scale muddy sand pump according to claim 1, characterized in that: sealing component (6) are including keeping off cover (61) and bearing gland (62), keep off cover (61) are provided with two, keep off the surface of cover (61) cover at axostylus axostyle (1), bearing gland (62) fixed connection is on the side of bearing body (4), bearing gland (62) are provided with two, bearing gland (62) set up on the outside of keeping off cover (61), the side of bearing gland (62) is provided with pressure strip (63).

3. A new bearing assembly structure for a large-scale muddy sand pump according to claim 1, characterized in that: thrust bearing part (5) are including spherical roller thrust bearing (51) and thrust disc (52), spherical roller thrust bearing (51) and thrust disc (52) all overlap and establish on the surface of bearing body (4), run through on thrust disc (52) have guide pin (53), be provided with belleville spring (58) between guide pin (53) and thrust disc (52), fixedly connected with circlip (54) on guide pin (53), fixedly connected with is split snap ring (55) on spherical roller thrust bearing (51), be provided with locking ring (56) on split snap ring (55), be provided with anti-rotation key (57) on thrust disc (52).

4. A new bearing assembly structure for a large-scale muddy sand pump according to claim 2, characterized in that: an oil cup (11) is communicated with the bearing gland (62).

5. A new bearing assembly structure for a large-scale muddy sand pump according to claim 2, characterized in that: a lip seal ring (12) is arranged between the bearing gland (62) and the baffle sleeve (61).