CN210440466U

CN210440466U - Bearing structure for large-scale mixer

Info

Publication number: CN210440466U
Application number: CN201921467485.XU
Authority: CN
Inventors: 吕仲林
Original assignee: Xinnuo Bearing Factory Of Xinchang County
Current assignee: Xinnuo Bearing Factory Of Xinchang County
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-05-01
Anticipated expiration: 2029-09-05

Abstract

The utility model relates to a mixer main shaft bearing equipment technical field specifically is a bearing structure for large-scale mixer, including the stirring main shaft, the outer wall of stirring main shaft cup joints in the middle through-hole of frame, and the position that the stirring main shaft is connected with the frame has cup jointed antifriction bearing, clamp plate and end cover in proper order, and antifriction bearing mainly comprises inner circle, outer lane and spherical roller, and beneficial effect is: the utility model discloses an add clamp plate and axle sleeve, and then make the accurate landing of fluid realize the lubrication action on the roller, utilize the sealing washer to isolate fluid, utilize the axle sleeve to realize the protection of counter shaft outer wall; through setting up oil drain and oil spilling groove, realize the recovery of fluid, avoid causing pollution and extravagant, utilize the oil spilling groove, prevent that the fluid backward flow from causing the pollution to the bearing outer wall.

Description

Bearing structure for large-scale mixer

Technical Field

The utility model relates to a mixer main shaft bearing equipment technical field specifically is a bearing structure for large-scale mixer.

Background

In the stirring process of the stirrer, the stirring main shaft is connected with the rack through the bearing, and because the stirring main shaft has higher rotating speed and larger load, the friction between the roller and the inner wall of the bearing in the bearing is larger, the generated heat is higher, and the bearing is easy to deform at high temperature; in the prior art, the bearing is lubricated and cooled by adopting an oil injection mode, but oil is easy to leak in the oil injection process, so that stirred materials are polluted.

Therefore, the bearing structure for the large stirrer is provided, and the problem of leakage of the stirrer bearing during cooling, lubricating and oil injection is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bearing structure for large-scale mixer to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a bearing structure for a large-scale mixer comprises a mixing main shaft, wherein the outer wall of the mixing main shaft is sleeved in a middle through hole of a frame, a rolling bearing, a pressing plate and an end cover are sequentially sleeved at the position where the mixing main shaft is connected with the frame, the rolling bearing mainly comprises an inner ring, an outer ring and spherical rollers, the outer wall of the outer ring is tightly attached to the inner wall of the frame, the upper end surface of the outer ring is provided with four limiting blocks distributed in a circumferential array manner, the outer ring and the inner ring are coaxially installed, the spherical rollers are arranged between the outer ring and the inner ring, the lower ends of the spherical rollers are right opposite to an oil discharge channel, the upper end surface of the pressing plate is provided with a plurality of jacks distributed in a circumferential array manner, the inner wall of the pressing plate is provided with internal threads, the upper end surface of the pressing plate is tightly attached to the lower end surface of the end cover, the pressing, the interlude of spouting the oil pipe runs through the clamp plate, and the lower extreme of spouting the oil pipe is just to spherical roller directly over.

Preferably, the oil discharge channel is arranged in the inner cavity of the rack, the lower end of the oil discharge channel is provided with an oil overflow groove with a circular arc groove, the upper end of the oil discharge channel is over against the gap between the outer ring and the inner ring, and the other end of the oil discharge channel extends to the outer side of the rack in parallel.

Preferably, the end cover is installed on the upper end face of the frame and fixed through screws, and the inner diameter of the end cover is larger than the outer diameter of the lower end of the shaft sleeve.

Preferably, a limiting hole is formed in the position, corresponding to the limiting block, of the lower end face of the pressing plate, and the limiting block is inserted into the inner cavity of the limiting hole.

Preferably, the inner wall of the shaft sleeve is in clearance connection with the outer wall of the stirring main shaft, the lower end of the shaft sleeve extends to the upper end face of the inner ring, the shaft sleeve is in clearance connection with the upper end face of the inner ring, and the upper end of the shaft sleeve extends to the upper end of the end cover.

Preferably, a sealing ring is sleeved between the inner ring and the shaft sleeve, the sealing ring is sleeved on the outer wall of the stirring main shaft, and the outer wall of the sealing ring is tightly attached to the inner ring and the shaft sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an add clamp plate and axle sleeve, and then make the accurate landing of fluid realize the lubrication action on the roller, utilize the sealing washer to isolate fluid, utilize the axle sleeve to realize the protection of counter shaft outer wall;

2. the utility model discloses a set up oil drain and oil spilling groove, realize the recovery of fluid, avoid causing pollution and waste, utilize the oil spilling groove, prevent that the fluid backward flow from causing the pollution to the bearing outer wall.

Drawings

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

FIG. 2 is a schematic view of the three-dimensional structure of the pressing plate of the present invention;

fig. 3 is a side view of the three-dimensional structure of the pressing plate of the present invention.

In the figure: the device comprises a stirring main shaft 1, a frame 2, a rolling bearing 3, an outer ring 4, an inner ring 5, a spherical roller 6, a pressing plate 7, an axle sleeve 8, an end cover 9, a screw 10, an oil injection pipe 11, a sealing ring 12, an oil discharge channel 13, an oil overflow groove 14, a limiting block 15, a limiting hole 16, an internal thread 17 and an insertion hole 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution:

the utility model provides a large-scale for mixer bearing structure, includes stirring main shaft 1, and the outer wall of stirring main shaft 1 cup joints in the middle through-hole of frame 2, and the hookup location outer wall of stirring main shaft 1 and frame 2 has cup jointed antifriction bearing 3, clamp plate 7 and end cover 9 in proper order, utilizes the mode that cup joints, realizes antifriction bearing 3's installation.

Antifriction bearing 3 mainly comprises inner circle 5, outer lane 4 and spherical roller 6, and the outer wall of outer lane 4 closely laminates at the inner wall of frame 2, and the up end of outer lane 4 is provided with four stopper 15 that the circumference array distributes, and spacing hole 16 has been seted up with the position that stopper 15 corresponds to the lower terminal surface of clamp plate 7, and stopper 15 pegs graft in spacing hole 16 inner chamber, utilizes stopper 15 and spacing hole 16's cooperation, realizes the fixed connection between outer lane 4 and the clamp plate 7.

The outer ring 4 and the inner ring 5 are coaxially arranged, the spherical roller 6 is arranged between the outer ring 4 and the inner ring 5, the lower end of the spherical roller 6 is opposite to the oil discharge channel 13, the oil discharge channel 13 is arranged in the inner cavity of the frame 2, the upper end of the oil discharge channel 13 is opposite to the gap between the outer ring 4 and the inner ring 5, the other end of the oil discharge channel 13 extends to the outer side of the frame 2 in parallel, the oil discharge channel 13 is utilized, the collection of dripping lubricating liquid on the spherical roller 6 is realized, the oil liquid is recycled, and the requirement of environmental protection is met.

The lower end of the oil discharge channel 13 is provided with an oil overflow groove 14 with an arc-shaped groove, and the oil overflow groove 14 is used for buffering the oil circulation speed to prevent the oil from flowing back to cause pollution to the outer wall of the bearing.

The upper end face of the pressing plate 7 is provided with a plurality of jacks 18 distributed in a circumferential array mode, the oil injection pipes 11 are fixedly inserted into the jacks 18, the jacks 18 are used for fixedly mounting the oil injection pipes 11, meanwhile, the lower ends of the oil injection pipes 11 are aligned to the spherical rollers 6, and lubrication and cooling efficiency is improved.

The inner wall of clamp plate 7 is provided with internal thread 17, and clamp plate 7 passes through internal thread 17 fixed thread connection axle sleeve 8, realizes the fixed mounting of axle sleeve 8.

Gap connection between the inner wall of axle sleeve 8 and the outer wall of stirring main shaft 1, the lower extreme of axle sleeve 8 extends to the up end of inner circle 5, and gap connection between axle sleeve 8 and the 5 up end of inner circle, and the upper end of axle sleeve 8 extends to the upper end of end cover 9, utilizes the clearance installation between axle sleeve 8 and inner circle, stirring main shaft 1, prevents that axle sleeve 8 from influencing stirring main shaft 1 and rotates, realizes the guard action of axle sleeve 8 to stirring main shaft 1 simultaneously.

A sealing ring 12 is sleeved between the inner ring 5 and the shaft sleeve 8, the sealing ring 12 is sleeved on the outer wall of the stirring main shaft 1, the outer wall of the sealing ring 12 is tightly attached to the inner ring 5 and the shaft sleeve 8, and oil is isolated from the stirring main shaft 1 by the shaft sleeve 8 and the sealing ring 12, so that the oil is prevented from polluting the outer wall of the stirring main shaft 1.

The upper end face of the pressing plate 7 is tightly attached to the lower end face of the end cover 9, the end cover 9 is installed on the upper end face of the rack 2, the end cover 9 is fixed through the screw 10, the inner diameter of the end cover 9 is larger than the outer diameter of the lower end of the shaft sleeve 8, the pressing plate 7 is fixedly installed through the end cover 9, and fixed installation between the pressing plate 7 and the rack 2 is achieved.

The oil spout pipe 11 has been pegged graft to jack 18 internal fixation, and the upper end of oil spout pipe 11 extends to the upside of end cover 9, and the interlude of oil spout pipe 11 runs through clamp plate 7, and the lower extreme of oil spout pipe 11 is just directly over spherical roller 6, utilizes oil spout pipe 11 to realize realizing lubricated refrigerated effect to the oil supply of antifriction bearing 3.

The working principle is as follows: firstly, end cover 9 is utilized to fixedly install pressing plate 7, fixed installation between pressing plate 7 and frame 2 is realized, then oil supply to rolling bearing 3 is realized by utilizing oil spraying pipe 11, lubrication and cooling effects are realized, oil is sprayed to spherical roller 6, lubrication and cooling efficiency is improved, oil falls into oil discharge channel 13 through the lower end of spherical roller 6, oil circulation speed is buffered by utilizing oil overflow groove 14 in oil discharge channel 13, pollution to the outer wall of the bearing caused by oil backflow is prevented, collection of dripping lubricating liquid on spherical roller 6 is realized by utilizing oil discharge channel 13, further recycling of oil is realized, environmental protection requirements are met, in the process of lubrication and cooling, oil is isolated from stirring main shaft 1 by utilizing shaft sleeve 8 and sealing ring 12, and oil is prevented from polluting the outer wall of stirring main shaft 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 bearing structure for large-scale mixer, includes stirring main shaft (1), its characterized in that: the outer wall of the stirring main shaft (1) is sleeved in a middle through hole of the rack (2), the position where the stirring main shaft (1) is connected with the rack (2) is sequentially sleeved with a rolling bearing (3), a pressing plate (7) and an end cover (9), the rolling bearing (3) mainly comprises an inner ring (5), an outer ring (4) and a spherical roller (6), the outer wall of the outer ring (4) is tightly attached to the inner wall of the rack (2), the upper end face of the outer ring (4) is provided with four limiting blocks (15) distributed in a circumferential array manner, the outer ring (4) and the inner ring (5) are coaxially installed, the spherical roller (6) is arranged between the outer ring (4) and the inner ring (5), the lower end of the spherical roller (6) is just opposite to an oil drainage channel (13), the upper end face of the pressing plate (7) is provided with a plurality of inserting holes (18) distributed in a circumferential array manner, the upper end face of clamp plate (7) closely laminates at the lower terminal surface of end cover (9), and clamp plate (7) are through internal thread (17) fixed thread connection axle sleeve (8), jack (18) internal fixation is pegged graft and is had oil spout pipe (11), the upper end of spouting oil spout pipe (11) extends to the upside of end cover (9), and the interlude of spouting oil spout pipe (11) runs through clamp plate (7), and the lower extreme of spouting oil spout pipe (11) is just directly over spherical roller (6).

2. The bearing structure for the large mixer according to claim 1, wherein: the oil discharge channel (13) is arranged in an inner cavity of the rack (2), an oil overflow groove (14) with a circular arc groove is formed in the lower end of the oil discharge channel (13), the upper end of the oil discharge channel (13) is over against a gap between the outer ring (4) and the inner ring (5), and the other end of the oil discharge channel (13) extends to the outer side of the rack (2) in parallel.

3. The bearing structure for the large mixer according to claim 1, wherein: the end cover (9) is installed on the upper end face of the rack (2), the end cover (9) is fixed through a screw (10), and the inner diameter of the end cover (9) is larger than the outer diameter of the lower end of the shaft sleeve (8).

4. The bearing structure for the large mixer according to claim 1, wherein: the lower end face of the pressing plate (7) is provided with a limiting hole (16) at a position corresponding to the limiting block (15), and the limiting block (15) is inserted into the inner cavity of the limiting hole (16).

5. The bearing structure for the large mixer according to claim 1, wherein: the inner wall of the shaft sleeve (8) is in clearance connection with the outer wall of the stirring main shaft (1), the lower end of the shaft sleeve (8) extends to the upper end face of the inner ring (5), the upper end faces of the shaft sleeve (8) and the inner ring (5) are in clearance connection, and the upper end of the shaft sleeve (8) extends to the upper end of the end cover (9).

6. The bearing structure for the large mixer according to claim 1, wherein: a sealing ring (12) is sleeved between the inner ring (5) and the shaft sleeve (8), the sealing ring (12) is sleeved on the outer wall of the stirring main shaft (1), and the outer wall of the sealing ring (12) is tightly attached to the inner ring (5) and the shaft sleeve (8).