Split type seal of motor bearing bush

Abstract

The utility model discloses a split type seal of a motor bearing bush, which belongs to the field of motor bearing bush sealing and comprises an outer ring, an inner ring and a combined structure, the outer ring and the inner ring are respectively composed of two outer semicircular rings and two inner semicircular rings, the outer ring is positioned on the outer side of the inner ring, and the outer ring is connected with the inner ring through the combined structure; the combined structure comprises an annular groove, an annular clamping block and a buckling structure, the annular groove is formed in the inner sides of the two outer semicircular rings, the annular clamping block is fixedly installed on the outer surfaces of the two inner semicircular rings, and the outer semicircular rings and the inner semicircular rings are connected through the buckling structure. According to the split type seal of the motor bearing bush, through the split structure of the outer ring and the inner ring, the inner ring rotates along with the shaft, abrasion of the oil seal position can be avoided as much as possible, the sealing performance of the whole oil seal can be guaranteed, mutual abrasion can be avoided, and the problems that due to long-time operation of a traditional floating type sealing ring, the shaft position is abraded, and the service life is prolonged are solved. And moreover, the integral installation is very convenient.

Description

Technical Field

[0001] The utility model relates to the field of motor bearing bushing seals, in particular to a motor bearing bushing split seal. Background Art

[0002] A blast furnace blower is a power machine that can collect part of the atmosphere, and increase the air pressure by pressurizing it to form a blast furnace blast with a certain pressure and flow, and then adjust the wind pressure and air volume according to the needs of the blast furnace conditions and transport it to the blast furnace. From the energy point of view, a blast furnace blower is a machine that converts the energy of the prime mover into gas energy. Existing motor bearing seals and sealing mechanisms for blast furnace blowers are mostly floating integral structures or two semicircular split structures.

[0003] A Chinese utility model patent with publication number CN210111747U discloses a motor bearing seal structure, including a first shell, a first notch is arranged on the upper side of the first shell; a second shell, the second shell is arranged on the first shell, a second notch is arranged on the lower side of the second shell, and an installation cavity is formed inside the first shell and inside the second shell, and the installation cavity is used to install the bearing. The utility model can further increase the reliability and stability of the positioning of the skeleton floating seal ring. The first seal ring adopts the skeleton floating seal ring in the prior art, which can automatically compensate for the wear of the first seal ring after wear, improve the sealing effect of the first seal ring, and extend the sealing life of the first seal ring. However, its seal does not rotate with the shaft. Long-term operation of the motor will cause wear of the shaft position, poor sealing, and oil leakage. The position where the sealing ring is installed on the shaft will gradually wear, and multiple grooves will appear in severe cases. Utility Model Content

[0004] In order to solve the problem of shaft wear, loose sealing and oil leakage, the utility model provides a motor bearing split seal, and the technical solution is as follows:

[0005] The motor bearing split seal comprises an outer ring, an inner ring and a combined structure, wherein the outer ring and the inner ring are respectively composed of two outer semicircular rings and two inner semicircular rings, the outer ring is located outside the inner ring, and the outer ring is connected to the inner ring through the combined structure;

[0006] The combined structure includes an annular groove, an annular clamping block and a buckling structure, wherein the annular groove is opened on the inner side of two outer semicircular rings, the annular clamping block is fixedly installed on the outer surfaces of two inner semicircular rings, and the outer semicircular ring and the inner semicircular ring are connected by the buckling structure.

[0007] It can avoid the wear of the oil seal position as much as possible, which can not only ensure the sealing performance of the entire oil seal, but also avoid mutual friction.

[0008] Preferably, the fastening structure includes a first card slot, a first snap, a second card slot and a second snap. The first card slot and the second card slot are respectively formed on the opposite sides of the two inner semi-circular rings and the outer semi-circular ring, and the first snap and the second snap are respectively arranged on the opposite sides of the two inner semi-circular rings and the outer semi-circular ring.

[0009] Preferably, the positions of the first card slot and the second card slot correspond to those of the first snap and the second snap respectively, and the first snap and the second snap respectively extend into the interiors of the first card slot and the second card slot.

[0010] Preferably, the first card slot, the first snap, the second card slot and the second snap are all distributed in a crosswise and staggered manner, and the first snap is made of an elastic material.

[0011] Preferably, spaces for the first snap and the second snap to move are reserved inside the first card slot and the second card slot respectively, and the first snap and the second snap are respectively clamped with the first card slot and the second card slot.

[0012] Preferably, a circular groove is formed at the bottom of the outer ring, the inner ring is divided into a lower ring part and an upper convex part. The lower ring part is arranged inside the circular groove, and the upper convex part is arranged on the top of the lower ring part.

[0013] Preferably, the annular clamping block is arranged on the outer surface of the upper convex part, and the size and shape of the annular clamping block are the same as those of the annular groove.

[0014] Preferably, both the annular groove and the annular clamping block are annularly distributed, and the annular clamping block is clamped with the annular groove.

[0015] Preferably, a return hole is formed at the bottom inside the annular groove, and the return hole extends into the circular groove. The number of the return holes is two and they are symmetrically distributed in the middle of the insides of the two annular grooves.

[0016] It can prevent the outer ring and the inner ring from separating, and can also prevent the lubricating oil from leaking to the outside. A small amount of oil enters the annular groove, which can play a lubricating role.

[0017] Beneficial effects:

[0018] The beneficial effects produced by adopting the technical solution of the present utility model are as follows:

[0019] 1. The split seal of the motor bearing shell, through the split structure of the outer ring and the inner ring, the inner ring rotates with the shaft, can avoid the wear of the oil seal position as much as possible, can not only ensure the sealing performance of the whole oil seal, but also avoid mutual wear, and solves the problem of oil leakage caused by the wear of the shaft position due to the long-term operation of the traditional floating seal ring.

[0020] 2. The split seal of the motor bearing bush and the combined structure can prevent the outer ring and the inner ring from coming apart, and can also prevent lubricating oil from leaking to the outside. A small amount of oil enters the annular groove, which can play a lubricating role, reduce wear and relative friction, and the overall installation is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0022] Figure 1 is the overall structural schematic diagram of the split seal of the motor bearing bush of the present invention;

[0023] Figure 2 is the three-dimensional structural diagram of the outer semi-ring of the split seal of the motor bearing bush of the present invention;

[0024] Figure 3 is the three-dimensional structural diagram of the inner semi-ring of the split seal of the motor bearing bush of the present invention;

[0025] Figure 4 is the combined structural diagram of the outer semi-ring and the inner semi-ring of the split seal of the motor bearing bush of the present invention;

[0026] Figure 5 is the front sectional structural diagram of the split seal of the motor bearing bush of the present invention.

[0027] In the figure, 1. outer ring; 2. inner ring; 3. annular groove; 4. annular clamping block; 5. return hole; 6. first card slot; 7. first buckle; 8. second card slot; 9. second buckle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Therefore, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the present invention to be protected, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Such as Figures 1-4As shown, the motor bearing split seal includes an outer ring 1, an inner ring 2 and a combined structure. The outer ring 1 and the inner ring 2 are respectively composed of two outer semicircular rings and two inner semicircular rings. The outer ring 1 is located on the outside of the inner ring 2, and the outer ring 1 is connected to the inner ring 2 through the combined structure.

[0030] The combined structure includes an annular groove 3, an annular clamping block 4 and a buckling structure. The annular groove 3 is opened on the inner side of the two outer semicircular rings, and the annular clamping block 4 is fixedly installed on the outer surface of the two inner semicircular rings. The outer semicircular rings and the inner semicircular rings are connected by the buckling structure.

[0031] In this embodiment, the separate structure of the outer ring 1 and the inner ring 2 can avoid wear of the oil seal position as much as possible, which can not only ensure the sealing performance of the entire oil seal, but also avoid mutual wear.

[0032] like Figures 2-5 As shown, the buckling structure includes a first slot 6, a first buckle 7, a second slot 8 and a second buckle 9. The first slot 6 and the second slot 8 are respectively opened on the side opposite to the two inner semicircular rings and the outer semicircular ring, and the first buckle 7 and the second buckle 9 are respectively arranged on the side opposite to the two inner semicircular rings and the outer semicircular ring. The first slot 6 and the second slot 8 correspond to the positions of the first buckle 7 and the second buckle 9 respectively, and the first buckle 7 and the second buckle 9 extend to the inside of the first slot 6 and the second slot 8 respectively. The first slot 6, the first buckle 7, the second slot 8 and the second buckle 9 are all distributed in a cross-displaced manner. The first buckle 7 is made of elastic material, and the first buckle 7 and the second buckle 9 are respectively buckled with the first slot 6 and the second slot 8.

[0033] Specifically, space is reserved inside the first card slot 6 and the second card slot 8 for the first card buckle 7 and the second card buckle 9 to move, which facilitates the buckling connection between the outer semicircular ring and the inner semicircular ring.

[0034] In this embodiment, the buckling structure can make the two outer semicircular rings and the two inner semicircular rings mutually clamped and fixed, and can prevent loosening from occurring as much as possible.

[0035] like Figures 2-4 As shown, a circular groove is provided at the bottom of the outer ring 1, and the inner ring 2 is divided into a lower ring portion and an upper convex portion, the lower ring portion is arranged on the inner side of the circular groove, the upper convex portion is arranged on the top of the lower ring portion, and an annular clamping block 4 is arranged on the outer surface of the upper convex portion. The size and shape of the annular clamping block 4 are the same as those of the annular groove 3, the annular groove 3 and the annular clamping block 4 are both distributed in an annular shape, and the annular clamping block 4 is clamped with the annular groove 3.

[0036] Specifically, a reflux hole 5 is opened at the bottom of the inner side of the annular groove 3 . The reflux hole 5 extends into the circular groove. There are two reflux holes 5 symmetrically distributed in the middle of the inner sides of the two annular grooves 3 .

[0037] In this embodiment, the reflux hole 5 can ensure the reflux of the oil entering the groove, thus guaranteeing the sealing performance.

[0038] The usage method of the present utility model is as follows:

[0039] Socket the two outer semi-rings on the two inner semi-rings respectively via the annular clamping block 4 and the annular groove 3, then align the two first buckles 7 and the second buckle 9 with the two first clamping grooves 6 and the second clamping groove 8 respectively, and move the two semi-bodies towards the opposite side until the first buckle 7 and the second buckle 9 are respectively snapped into the corresponding first clamping groove 6 and the second clamping groove 8, and the overall splicing and fixing can be completed.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. The motor bearing split seal is characterized by: include: An outer ring (1), an inner ring (2) and a combined structure, wherein the outer ring (1) and the inner ring (2) are respectively composed of two outer semicircular rings and two inner semicircular rings, the outer ring (1) is located outside the inner ring (2), and the outer ring (1) is connected to the inner ring (2) via the combined structure; The combined structure comprises an annular groove (3), an annular clamping block (4) and a buckling structure, wherein the annular groove (3) is opened on the inner side of two outer semicircular rings, the annular clamping block (4) is fixedly mounted on the outer surfaces of two inner semicircular rings, and the outer semicircular rings and the inner semicircular rings are connected via the buckling structure.

2. The motor bearing split seal according to claim 1, characterized in that: The buckling structure comprises a first clamping groove (6), a first clamping buckle (7), a second clamping groove (8) and a second clamping buckle (9); the first clamping groove (6) and the second clamping groove (8) are respectively arranged on a side opposite to the two inner semicircular rings and the outer semicircular ring; the first clamping buckle (7) and the second clamping buckle (9) are respectively arranged on a side opposite to the two inner semicircular rings and the outer semicircular ring.

3. The motor bearing split seal according to claim 2, characterized in that: The first card slot (6) and the second card slot (8) correspond to the positions of the first card buckle (7) and the second card buckle (9) respectively, and the first card buckle (7) and the second card buckle (9) extend to the inside of the first card slot (6) and the second card slot (8) respectively.

4. The motor bearing split seal according to claim 2, characterized in that: The first clamping slot (6), the first clamping buckle (7), the second clamping slot (8) and the second clamping buckle (9) are all distributed in a cross-displaced manner, and the first clamping buckle (7) is made of elastic material.

5. The motor bearing split seal according to claim 2, characterized in that: The first card slot (6) and the second card slot (8) both have reserved spaces inside for the first card buckle (7) and the second card buckle (9) to move, and the first card buckle (7) and the second card buckle (9) are respectively engaged with the first card slot (6) and the second card slot (8).

6. The motor bearing split seal according to claim 1, characterized in that: The bottom of the outer ring (1) is provided with a circular groove, and the inner ring (2) is divided into a lower ring portion and an upper convex portion, wherein the lower ring portion is arranged on the inner side of the circular groove, and the upper convex portion is arranged on the top of the lower ring portion.

7. The motor bearing split seal according to claim 6, characterized in that: The annular clamping block (4) is arranged on the outer surface of the upper convex portion, and the size and shape of the annular clamping block (4) are the same as those of the annular groove (3).

8. The motor bearing split seal according to claim 1, characterized in that: The annular groove (3) and the annular clamping block (4) are both distributed in an annular shape, and the annular clamping block (4) is clamped with the annular groove (3).

9. The motor bearing split seal according to claim 6, characterized in that: A reflux hole (5) is provided at the bottom of the inner side of the annular groove (3), and the reflux hole (5) extends into the circular groove. There are two reflux holes (5) which are symmetrically distributed in the middle of the inner sides of the two annular grooves (3).

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