Retainer for improving sealing effect of roller box

Abstract

The utility model discloses a retainer for improving the sealing effect of a roller box, which comprises an outer frame body and an inner frame body arranged on the inner side of the outer frame body, an air cavity is arranged between the outer side of the inner frame body and the inner side of the outer frame body, at least two air inlet channels communicated with the air cavity are arranged on the circumference of the outer frame body, and the air inlet channels are communicated with the air cavity. An air inlet communicated with the air inlet channel is formed in the bottom face of the outer frame body, a boss is arranged on the upper portion of the inner frame body, a plurality of notch grooves in an annular array are formed in the top face of the boss, and the notch grooves are communicated with the air cavity. Therefore, the uniformity of air inflow is guaranteed, the double lips are attached to the outer oil slinger more tightly, the oil mist amount lubricating effect is better, the double-lip sealing effect is improved, and the service life of the double-lip sealing device is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of roll box cages, and particularly relates to a cage for improving the sealing effect of a roll box. Background Art

[0002] The upper part of the roll box is sealed by double lips, and the sealing effect of the double lips plays a key role. The rolling process of the roll box is the pre-finishing rolling stage. The equipment has a low rotational speed and the specifications of the double lips are relatively large, which have high requirements for the sealing effect and wear resistance of the double lips. In the actual production and use of roll box equipment, the situation of roll box water ingress caused by poor sealing effect of the double lips occurs from time to time.

[0003] Through the analysis of the reasons for roll box water ingress, it is found that: originally, there was one air inlet hole on each side of the cage fixing the double lips to blow air to the double lips, but the acting area was small and the local position was obvious. The position of the double lips and the cage was static and fixed. Where there was no air hole blowing, the sealing fit between the double lips and the oil thrower ring would decrease, and the amount of atomized oil blown up was also small, so the sealing effect of the entire double lips would become poor, thus causing the roll box water ingress phenomenon. Summary of the Utility Model

[0004] To solve the problems raised in the above background art, the utility model provides a cage for improving the sealing effect of a roll box, which has the characteristics of uniform air intake, closer fitting of the double lips to the outer oil thrower ring, and better lubrication effect of the atomized oil amount.

[0005] To achieve the above object, the utility model provides the following technical solution: a cage for improving the sealing effect of a roll box, including an outer frame body and an inner frame body arranged inside the outer frame body. Among them, an air cavity is provided between the outer side of the inner frame body and the inner side of the outer frame body. At least two air intake channels communicating with the air cavity are provided on the circumference of the outer frame body. Air intake holes communicating with the air intake channels are provided on the bottom surface of the outer frame body. A convex platform is provided on the upper part of the inner frame body. A plurality of notch grooves arranged in an annular array are provided on the top surface of the convex platform, and the notch grooves communicate with the air cavity.

[0006] To realize the rapid positioning between the cage and the outer oil thrower ring and the inner oil thrower ring, further, a positioning ring is provided above the outer frame body.

[0007] To limit the double lip seal ring, further, a top ring is provided inside the inner frame body.

[0008] To make the outer frame body press above the convex platform, so that the air intake is discharged from the notch grooves, ensuring the uniformity of the air intake amount, further, a pressing groove corresponding to the convex platform is provided on the outer frame body.

[0009] In order to form an air cavity, further, a first annular groove is provided on the circumference of the inner frame body, and a second annular groove corresponding to the first annular groove is provided on the inner side of the outer frame body. The first annular groove and the second annular groove form the air cavity.

[0010] In order to realize the assembly of the inner frame body and the outer frame body, further, an assembly ring is provided at the lower end of the circumference of the inner frame body, and an assembly groove corresponding to the assembly ring is provided on the outer frame body.

[0011] In order to ensure the sealing performance at the connection of the inner frame body and the outer frame body, thereby avoiding air leakage and ensuring the air intake volume at the notch groove, further, a sealing ring is sleeved on the circumference of the inner frame body, and a sealing groove corresponding to the sealing ring is provided on the outer frame body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model is composed of two parts, namely an outer frame body and an inner frame body. An air cavity is arranged between the outer frame body and the inner frame body, and thirty notch grooves are arranged on the top surface of the inner frame body in an annular array and communicated with the air cavity, thereby ensuring the uniformity of the air intake volume, making the double lips fit more closely with the outer throw oil ring and having a better lubrication effect of the oil mist amount, improving the sealing effect and service life of the double lips;

[0014] 2. A pressing groove corresponding to the boss is provided on the outer frame body of the present utility model, so that the outer frame body is pressed above the boss, thereby enabling the air intake to be discharged from the notch groove and ensuring the uniformity of the air intake volume;

[0015] 3. A sealing ring is sleeved on the circumference of the inner frame body of the present utility model, and a sealing groove corresponding to the sealing ring is provided on the outer frame body, ensuring the sealing performance at the connection of the inner frame body and the outer frame body, thereby avoiding air leakage and ensuring the air intake volume at the notch groove. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is the sectional structure schematic diagram of the present utility model;

[0018] Figure 2 is the present utility model Figure 1 the enlarged structure schematic diagram at A in;

[0019] Figure 3 is the partial sectional structure schematic diagram of the outer frame body of the present utility model;

[0020] Figure 4 is the partial sectional structure schematic diagram of the inner frame body of the present utility model;

[0021] Figure 5 Schematic diagram of a partial top view of the inner frame body of the present utility model;

[0022] In the figure: 1. Outer frame body; 2. Inner frame body; 21. Top ring; 22. Notch groove; 23. Boss; 24. First ring groove; 25. Assembly ring; 3. Sealing ring; 4. Air inlet hole; 5. Air inlet channel; 6. Air cavity; 7. Second ring groove; 8. Positioning ring; 9. Pressing groove; 10. Sealing groove; 11. Assembly groove. Specific implementation mode

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-5 , the present utility model provides the following technical solutions: A cage for improving the sealing effect of a roller box, including an outer frame body 1 and an inner frame body 2 arranged inside the outer frame body 1. Among them, an air cavity 6 is provided between the outer side of the inner frame body 2 and the inner side of the outer frame body 1. At least two air inlet channels 5 communicating with the air cavity 6 are provided on the circumference of the outer frame body 1. An air inlet hole 4 communicating with the air inlet channel 5 is provided on the bottom surface of the outer frame body 1. A boss 23 is provided on the upper part of the inner frame body 2. Thirty notch grooves 22 arranged in an annular array are provided on the top surface of the boss 23. The notch grooves 22 communicate with the air cavity 6.

[0026] By adopting the above technical solutions, the present utility model is composed of two parts, namely an outer frame body 1 and an inner frame body 2. An air cavity 6 is provided between the outer frame body 1 and the inner frame body 2. Thirty notch grooves 22 arranged in an annular array and communicating with the air cavity 6 are provided on the top surface of the inner frame body 2, thereby ensuring the uniformity of the air intake volume, making the double lips fit more closely with the outer oil throwing ring and the lubrication effect of the oil mist amount better, improving the sealing effect and service life of the double lips.

[0027] Specifically, a pressing groove 9 corresponding to the boss 23 is provided on the outer frame body 1.

[0028] By adopting the above technical solutions, the outer frame body 1 is pressed above the boss 23, so that the air intake is discharged from the notch groove 22, ensuring the uniformity of the air intake volume.

[0029] Specifically, a first ring groove 24 is provided on the circumference of the inner frame body 2, and a second ring groove 7 corresponding to the first ring groove 24 is provided on the inner side of the outer frame body 1. The first ring groove 24 and the second ring groove 7 form the air cavity 6.

[0030] By adopting the above technical solution, it is used to form the air cavity 6.

[0031] Specifically, an assembly ring 25 is provided at the lower end of the circumference of the inner frame body 2, and an assembly groove 11 corresponding to the assembly ring 25 is provided on the outer frame body 1.

[0032] By adopting the above technical solution, the assembly of the inner frame body 2 and the outer frame body 1 is realized through the cooperation of the assembly ring 25 and the assembly groove 11.

[0033] Embodiment 2

[0034] The difference between this embodiment and Embodiment 1 is that specifically, a positioning ring 8 is provided above the outer frame body 1.

[0035] By adopting the above technical solution, the rapid positioning between the cage, the outer oil throwing ring and the inner oil throwing ring is realized.

[0036] Embodiment 3

[0037] The difference between this embodiment and Embodiment 1 is that specifically, a top ring 21 is provided inside the inner frame body 2.

[0038] By adopting the above technical solution, the double-lip sealing ring is limited.

[0039] Embodiment 4

[0040] The difference between this embodiment and Embodiment 1 is that specifically, a sealing ring 3 is sleeved on the circumference of the inner frame body 2, and a sealing groove 10 corresponding to the sealing ring 3 is provided on the outer frame body 1.

[0041] By adopting the above technical solution, the sealing performance at the connection between the inner frame body 2 and the outer frame body 1 is ensured, thereby avoiding air leakage and ensuring the air intake volume at the notch groove 22.

[0042] In summary, the utility model is composed of two parts, namely an outer frame body 1 and an inner frame body 2. An air cavity 6 is provided between the outer frame body 1 and the inner frame body 2, and thirty notch grooves 22 arranged in an annular array and communicating with the air cavity 6 are provided on the top surface of the inner frame body 2, thereby ensuring the uniformity of the air intake volume, making the double lips fit more closely with the outer oil throwing ring and the lubrication effect of the oil mist amount better, improving the double-lip sealing effect and service life; a pressing groove 9 corresponding to the boss 23 is provided on the outer frame body 1 of the utility model, so that the outer frame body 1 presses above the boss 23, thereby enabling the air intake to be discharged from the notch groove 22 and ensuring the uniformity of the air intake volume; a sealing ring 3 is sleeved on the circumference of the inner frame body 2 of the utility model, and a sealing groove 10 corresponding to the sealing ring 3 is provided on the outer frame body 1, ensuring the sealing performance at the connection between the inner frame body 2 and the outer frame body 1, thereby avoiding air leakage and ensuring the air intake volume at the notch groove 22.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, 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. A cage for improving the sealing effect of a roller box, characterized in that: It includes an outer frame and an inner frame arranged inside the outer frame, wherein an air cavity is provided between the outer side of the inner frame and the inner side of the outer frame, at least two air inlet channels connected to the air cavity are provided on the circumference of the outer frame, an air inlet hole connected to the air inlet channel is provided on the bottom surface of the outer frame, a boss is provided on the upper part of the inner frame, and a plurality of notch grooves in a ring array are provided on the top surface of the boss, and the notch grooves are connected to the air cavity.

2. A retainer for improving the sealing effect of a roller box according to claim 1, characterized in that: A positioning ring is provided above the outer frame.

3. A retainer for improving the sealing effect of a roller box according to claim 1, characterized in that: A top ring is arranged on the inner side of the inner frame.

4. A retainer for improving the sealing effect of a roller box according to claim 1, characterized in that: The outer frame is provided with a pressing groove corresponding to the boss.

5. A retainer for improving the sealing effect of a roller box according to claim 1, characterized in that: A first annular groove is arranged on the circumference of the inner frame, and a second annular groove corresponding to the first annular groove is arranged on the inner side of the outer frame. The first annular groove and the second annular groove form an air cavity.

6. A retainer for improving the sealing effect of a roller box according to claim 1, characterized in that: The lower end of the inner frame body is provided with an assembly ring, and the outer frame body is provided with an assembly groove corresponding to the assembly ring.

7. A retainer for improving the sealing effect of a roller box according to claim 1, characterized in that: A sealing ring is sleeved on the circumference of the inner frame, and a sealing groove corresponding to the sealing ring is provided on the outer frame.

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