Inner cooling roller way water retaining structure

Abstract

The utility model discloses an inner cooling roller way water retaining structure which comprises a spiral outer sleeve, a spiral inner sleeve, a spiral water seal gap and a sealing ring, one end of the spiral outer sleeve is connected with a through seat of a bearing cover, the spiral inner sleeve is coaxially sleeved on the end portion of a rolling shaft, one end of the spiral inner sleeve is connected with the through seat, and the section of the sealing ring is in a V shape. The inner cooling roller way water retaining structure is arranged between the spiral inner sleeve and the transparent cover and can block communication of the spiral water seal gap and the gap between the spiral inner sleeve and the transparent cover, and the sealing effect is guaranteed by sequentially arranging the multiple water retaining structures. The spiral water seal structure formed by the spiral outer sleeve and the spiral inner sleeve is used for sealing in the using process, the sealing ring is arranged between the spiral inner sleeve and the transparent cover for sealing in a static state, water flow is prevented from escaping inwards through a spiral water seal gap, the roller way can be directly added on the basis of an original roller way, the improvement on the existing roller way is small, and the cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of inner cooling roller conveyors, and more specifically relates to a water retaining structure of an inner cooling roller conveyor. Background Art

[0002] The hot output roller of the hot rolling production line is used to transport high-temperature strip steel. Since some roller areas are installed with instrument detection devices such as thickness gauges and convexity gauges, the roller cannot be cooled by external water, so an internally cooled roller needs to be installed.

[0003] The existing internally cooled roller conveyor has an unreasonable water retaining structure. For example, radial rubber seals (oil seals) are used to retain water. When rotating at high speed, the oil seal and the shaft contact part will heat up locally, the oil seal will wear quickly, and it will fail easily, and the water retaining function will deteriorate, causing water to enter the bearing. The labyrinth seal is affected by its own structure and processing accuracy, and some water still enters the bearing end through the labyrinth seal. This eventually causes water to enter the roller bearing, poor lubrication, frequent bearing burns, and the roller is locked, forcing it to shut down for replacement, which affects both the production line operation rate and the product surface quality. Utility Model Content

[0004] The utility model aims to provide an inner cooling roller conveyor water retaining structure in view of the deficiencies in the prior art, so as to solve the problems that the existing inner cooling roller conveyor water retaining structure is unreasonable and has poor effect.

[0005] In order to achieve the above object, the utility model provides an internal cooling roller water retaining structure, comprising:

[0006] A spiral outer sleeve, one end of which is connected to the transparent cover of the bearing cover;

[0007] A spiral inner sleeve, which is coaxially sleeved at the end of the roller, one end of which is connected to the transparent cover, and a spiral water seal gap is formed between the spiral inner sleeve and the spiral outer sleeve;

[0008] A sealing ring, the cross section of which is V-shaped, is disposed between the spiral inner sleeve and the transparent cover, and can seal the spiral water seal gap and the gap between the spiral inner sleeve and the transparent cover to communicate.

[0009] Optionally, a water collecting cylinder is arranged at one end of the spiral sleeve away from the transparent cover, and a drainage hole is arranged at the lower end of the water collecting cylinder.

[0010] Optionally, the drainage hole is connected to a drainage pipe, and the drainage pipe is exposed outside the water collecting cylinder.

[0011] Optionally, a through hole is provided at the lower end of the spiral sleeve, one end of the through hole is connected to one end of the spiral water seal gap close to the sealing ring, and the other end of the through hole is vertically downward.

[0012] Optionally, the coaxiality deviation between the spiral inner sleeve and the spiral outer sleeve is no more than 0.2 mm, and the single-side gap is no more than 0.5 mm.

[0013] Optionally, one end of the spiral inner sleeve away from the sealing ring is exposed from the spiral outer sleeve.

[0014] Optionally, a coaxial boss is provided at one end of the spiral inner sleeve close to the sealing ring, the boss and the end of the transparent cover form an annular groove structure, and the tip of the sealing ring is arranged inwardly in the annular groove structure.

[0015] Optionally, the inner wall of the spiral outer sleeve is smooth, and the spiral inner sleeve is provided with an external thread, and the spiral direction of the external thread is opposite to the rotation direction of the roller.

[0016] Optionally, the water collecting cylinder is coaxially arranged with the spiral outer sleeve, and the inner diameter of the water collecting cylinder is not less than the inner diameter of the spiral outer sleeve.

[0017] Optionally, an oil seal is further provided between the transparent cover and the bearing.

[0018] The utility model provides an internal cooling roller water retaining structure, which has the following beneficial effects:

[0019] The inner cooling roller water retaining structure ensures the sealing effect by sequentially arranging multiple water retaining structures. The spiral water seal structure formed by the spiral outer sleeve and the spiral inner sleeve is sealed during use, and the sealing ring is arranged between the spiral inner sleeve and the transparent cover to seal in a static state, and prevents water from escaping inward through the spiral water seal gap. It can be directly added on the basis of the original roller, with little modification to the existing roller and low cost.

[0020] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0022] Figure 1 A structural schematic diagram of an internal cooling roller conveyor water retaining structure according to an embodiment of the utility model is shown.

[0023] Figure 2 The inner cooling roller water retaining structure according to one embodiment of the utility model is shown. Figure 1 Magnified image of .

[0024] Description of reference numerals:

[0025] 1. Spiral outer sleeve; 2. Spiral inner sleeve; 3. Sealing ring; 4. Water collecting tube; 5. Through hole; 6. Oil seal retention; 7. Transparent cover. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0027] like Figure 1-2 As shown, an internal cooling roller conveyor water retaining structure comprises:

[0028] A spiral outer sleeve 1, one end of which is connected to the transparent cover of the bearing cover;

[0029] The spiral inner sleeve 2 is coaxially sleeved on the end of the roller, one end of which is connected to the transparent cover, and a spiral water seal gap is formed between the spiral inner sleeve 2 and the spiral outer sleeve 1;

[0030] The sealing ring 3 has a V-shaped cross section and is disposed between the spiral inner sleeve 2 and the transparent cover 7 , and can seal the spiral water seal gap and the gap between the spiral inner sleeve 2 and the transparent cover 7 to communicate.

[0031] Specifically, a spiral water seal structure (pumping principle) is formed by the spiral outer sleeve 1 and the spiral inner sleeve 2, which is sealed during use, and a sealing ring 3 is arranged between the spiral inner sleeve 2 and the transparent cover 7 to seal in a static state, and prevent water from escaping inward through the spiral water seal gap. This structure can be directly added on the basis of the original roller, with little modification to the existing roller and low cost, and the sealing effect is ensured by sequentially arranging multiple water retaining structures.

[0032] In this embodiment, a water collecting cylinder 4 is disposed at one end of the spiral casing 1 away from the transparent cover 7, and a drainage hole is disposed at the lower end of the water collecting cylinder 4.

[0033] Specifically, the water collection tube 4 can further reduce the splashing of water flow and at the same time discharge the gathered water flow blocked by the spiral water seal.

[0034] Furthermore, when the spiral sleeve 1 does not rotate, the other end of the water collecting cylinder 4 is connected to the supporting bearing.

[0035] In this embodiment, the drainage hole is connected to a drainage pipe, and the drainage pipe is exposed outside the water collecting tube 4.

[0036] Specifically, the water is guided to be discharged through the drain pipe while also reducing the splashing of water into the water collecting tube 4.

[0037] In this embodiment, a through hole 5 is provided at the lower end of the spiral sleeve 1, one end of the through hole 5 is connected to one end of the spiral water seal gap close to the sealing ring 3, and the other end of the through hole 5 is vertically downward.

[0038] Specifically, the sealing ring 3 can intercept the water flow passing through the gap of the spiral water seal, and the intercepted water is only discharged through the through hole 5.

[0039] In this embodiment, the coaxiality deviation between the spiral inner sleeve 2 and the spiral outer sleeve 1 is no greater than 0.2 mm, and the single-side gap is no greater than 0.5 mm.

[0040] Specifically, a suitable gap is set according to the roller speed to ensure the outward suction force of the spiral water seal.

[0041] In this embodiment, one end of the spiral inner sleeve 2 away from the sealing ring 3 is exposed from the spiral outer sleeve 1 .

[0042] Specifically, it is convenient for water in the external thread of the spiral inner sleeve 2 to be discharged from the spiral water seal.

[0043] In this embodiment, a coaxial boss is provided at one end of the spiral inner sleeve 2 close to the sealing ring 3. The boss and the end of the transparent cover 7 form an annular groove structure, and the tip of the sealing ring 3 is arranged inwardly in the annular groove structure.

[0044] Specifically, the tip of the sealing ring 3 is conveniently placed inward and can easily adapt to the change of the axial gap through elastic expansion.

[0045] In this embodiment, the inner wall of the spiral outer sleeve 1 is smooth, and the spiral inner sleeve 2 is provided with an external thread, and the spiral direction of the external thread is opposite to the rotation direction of the roller.

[0046] Specifically, the spiral outer sleeve 1 remains stationary, and the water is discharged outwardly through the rotation of the spiral inner sleeve 2.

[0047] In this embodiment, the water collecting cylinder 4 is coaxially arranged with the spiral outer sleeve 1 , and the inner diameter of the water collecting cylinder 4 is not less than the inner diameter of the spiral outer sleeve 1 .

[0048] Specifically, it is to prevent the water collecting tube 4 from obstructing the drainage of the spiral water seal.

[0049] In this embodiment, an oil seal 6 is further provided between the transparent cover 7 and the bearing.

[0050] Specifically, the oil seal 6 is used to prevent the bearing lubricating oil from overflowing and further isolate the water flow.

[0051] Further, the oil seal retainer 6 includes two sealing rubber rings.

[0052] When an internally cooled roller conveyor water retaining structure of the present embodiment is used, taking the use of the internally cooled roller conveyor as an example, the cooling water is sprayed to form water mist, and part of the water flow and water mist is blocked by the water collecting tube 4, the spiral water seal, and the sealing ring 3 in turn, and the blocked water flow and water mist can be discharged from the drain pipe and the through hole 5 without accumulating, thereby ensuring the working state of the sealing structure and avoiding water accumulation and flooding.

[0053] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An internal cooling roller water retaining structure, characterized in that: include: A spiral outer sleeve, one end of which is connected to the transparent cover of the bearing cover; A spiral inner sleeve, which is coaxially sleeved at the end of the roller, one end of which is connected to the transparent cover, and a spiral water seal gap is formed between the spiral inner sleeve and the spiral outer sleeve; A sealing ring, the cross section of which is V-shaped, is disposed between the spiral inner sleeve and the transparent cover, and can seal the spiral water seal gap and the gap between the spiral inner sleeve and the transparent cover to communicate.

2. The inner cooling roller water retaining structure according to claim 1 is characterized in that: A water collecting cylinder is arranged at one end of the spiral outer sleeve away from the transparent cover, and a drainage hole is arranged at the lower end of the water collecting cylinder.

3. The inner cooling roller water retaining structure according to claim 2 is characterized in that: The drainage hole is connected with a drainage pipe, and the drainage pipe is exposed outside the water collecting cylinder.

4. The inner cooling roller water retaining structure according to claim 3 is characterized in that: A through hole is provided at the lower end of the spiral outer sleeve, one end of the through hole is connected to one end of the spiral water seal gap close to the sealing ring, and the other end of the through hole is vertically downward.

5. The inner cooling roller water retaining structure according to claim 1 is characterized in that: The coaxiality deviation between the spiral inner sleeve and the spiral outer sleeve is not greater than 0.2 mm, and the single-side gap is not greater than 0.5 mm.

6. The inner cooling roller water retaining structure according to claim 1 is characterized in that: One end of the spiral inner sleeve away from the sealing ring is exposed from the spiral outer sleeve.

7. The inner cooling roller water retaining structure according to claim 6 is characterized in that: A coaxial boss is arranged at one end of the spiral inner sleeve close to the sealing ring, and the boss and the end of the transparent cover form an annular groove structure, and the tip of the sealing ring is arranged inwardly in the annular groove structure.

8. The inner cooling roller water retaining structure according to claim 1 is characterized in that: The inner wall of the spiral outer sleeve is smooth, and the spiral inner sleeve is provided with an external thread, and the spiral direction of the external thread is opposite to the rotation direction of the roller.

9. The inner cooling roller water retaining structure according to claim 2 is characterized in that: The water collecting cylinder is coaxially arranged with the spiral outer sleeve, and the inner diameter of the water collecting cylinder is not less than the inner diameter of the spiral outer sleeve.

10. The inner cooling roller table water retaining structure according to claim 1, characterized in that: An oil seal is also arranged between the transparent cover and the bearing.

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