CN212944660U - Water-proof device for flat head sleeve of connecting shaft - Google Patents
Water-proof device for flat head sleeve of connecting shaft Download PDFInfo
- Publication number
- CN212944660U CN212944660U CN202021575452.XU CN202021575452U CN212944660U CN 212944660 U CN212944660 U CN 212944660U CN 202021575452 U CN202021575452 U CN 202021575452U CN 212944660 U CN212944660 U CN 212944660U
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- Prior art keywords
- flat head
- spacer ring
- rubber
- roll
- sleeve
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- Expired - Fee Related
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Abstract
The utility model relates to a hot rolling mill technical field, concretely relates to connecting axle flat head cover watertight fittings, watertight fittings is including setting up spacer ring and the waterproof cover of rubber on the roll neck, spacer ring one end is connected with the roll bearing frame, the spacer ring other end is connected with waterproof cover one end of rubber, the waterproof cover other end of rubber is connected with the flat head cover. The device can effectively prevent the roller cooling water from entering the interior of the flat head sleeve, keep the lubricating grease in the flat head sleeve for a long time, reduce abrasion and prolong the service life.
Description
Technical Field
The utility model relates to a hot rolling mill technical field, concretely relates to flat head cover watertight fittings of spiale.
Background
The main transmission of the hot-rolled plate strip R1 rolling mill uses a large connecting shaft to transmit torque, and the connecting shaft flat head sleeve is used for severe working condition parts with large impact load, roller cooling water erosion and the like.
As shown in figure 1, the connecting position of a roll neck 1 and a flat head sleeve 2 of the existing hot-rolled plate strip R1 rolling mill is not provided with a waterproof device, cooling water of a roll easily flows into the flat head sleeve 2 in the actual production process, lubricating grease in the flat head sleeve 2 is difficult to store for a long time, so that the flat head sleeve 2 and the flat head of the roll are quickly worn, the use period is 8 months, the geometric dimension is out of tolerance, more frequent maintenance and replacement are required, and the maintenance cost is increased.
Based on this, provide one kind and can block that the roll cooling water gets into inside the flat head cover, keep the inside lubricating grease's of flat head cover spiale flat head cover watertight fittings for a long time, to slowing down flat head cover wearing and tearing, prolong flat head cover life and have the significance.
SUMMERY OF THE UTILITY MODEL
Inside leading to inside lubricating grease to be difficult to preserve to roll cooling water easily flows into flat headgear, and then leads to the technical problem of quick wearing and tearing between flat headgear and the flat head of roll, the utility model provides a flat headgear watertight fittings of spiale, the device can effectively block that roll cooling water gets into inside the flat headgear, keeps the inside lubricating grease of flat headgear for a long time, reducing wear, increase of service life.
The waterproof device comprises a spacer ring and a rubber waterproof sleeve which are arranged on a roll neck of a roll, wherein one end of the spacer ring is connected with a roll bearing seat, the other end of the spacer ring is connected with one end of the rubber waterproof sleeve, and the other end of the rubber waterproof sleeve is connected with a flat head sleeve.
Furthermore, the spacer ring is welded on the roll neck of the roll, and the rubber waterproof sleeve is sleeved on the roll neck of the roll.
Furthermore, the material of spacer ring is Q235 steel.
Furthermore, the rubber waterproof jacket is made of nitrile rubber.
Furthermore, the sum of the lengths of the spacer ring and the rubber waterproof sleeve is larger than the distance between the flat head sleeve and the roll bearing seat. Due to the arrangement, after the flat head sleeve is installed during roll changing, the waterproof sleeve is compressed and tightly attached to the front and rear circular end faces, and cooling water of the roller is prevented from entering the interior of the flat head sleeve of the spindle.
Furthermore, the sum of the lengths of the spacer ring and the rubber waterproof sleeve is 5mm longer than the distance between the flat head sleeve and the roller bearing seat.
The utility model has the advantages that,
the utility model provides a waterproof device for a flat head sleeve of a spindle, which adopts the sectional design of a spacing ring and a rubber waterproof sleeve due to the high price of rubber materials, only uses the rubber waterproof sleeve at the position close to the flat head sleeve, uses materials with lower price at other positions, such as the spacing ring made of steel, compresses the production cost of the waterproof device and has the advantage of low investment;
the utility model has simple structure and convenient installation, the lubricating grease in the flat head sleeve can be well kept after the use, the flat head sleeve is not easy to wear, and the internal geometric dimension can be kept for more than 12 months;
the utility model discloses a reducing wear effectively prolongs flat head cover life, reduces a pair of flat head cover spare parts price calculation according to every 5 years, and economic benefits is every year on average: 97/5 is 19.4 ten thousand yuan.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a roll neck and flat head sleeve structure of a conventional hot-rolled sheet strip R1 rolling mill;
fig. 2 is a schematic structural diagram of the present invention.
In the figure, 1-roll neck, 2-flat head sleeve, 3-spacer ring, 4-rubber waterproof sleeve and 5-roll bearing seat.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Example 1
As shown in figure 2, the connecting shaft flat head sleeve waterproof device comprises a spacer ring 3 and a rubber waterproof sleeve 4 which are arranged on a roll neck of a roll, one end of the spacer ring 3 is connected with a roll bearing seat 5, the other end of the spacer ring 3 is connected with one end of the rubber waterproof sleeve 4, and the other end of the rubber waterproof sleeve 4 is connected with a flat head sleeve 2.
Example 2
On the basis of the embodiment 1, a spacer ring 3 is welded on a roll neck of a roll, and a rubber waterproof sleeve 4 is sleeved on the roll neck of the roll;
the material of the spacer ring 3 is Q235 steel;
the rubber waterproof jacket 4 is made of nitrile rubber;
the sum of the lengths of the spacer ring 3 and the rubber waterproof sleeve 4 is larger than the distance between the flat head sleeve 2 and the roll chock 5.
Example 3
On the basis of the embodiment 2, the outer diameter of the spacer ring 3 is 870mm, the inner diameter is 710mm, and the length is 410 mm;
the outer diameter of the rubber waterproof sleeve 4 is 870mm, the inner diameter is 710mm, and the length is 190 mm;
the length sum of the spacer ring 3 and the rubber waterproof sleeve 4 is 5mm longer than the distance between the flat head sleeve 2 and the roll chock 5.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a connecting axle flat head cover watertight fittings, its characterized in that, watertight fittings is including setting up spacer ring (3) and the waterproof cover of rubber (4) on the roll neck of roll, spacer ring (3) one end is connected with roll chock (5), the spacer ring (3) other end is connected with waterproof cover of rubber (4) one end, waterproof cover of rubber (4) other end is connected with flat head cover (2).
2. The waterproofing device according to claim 1 wherein the spacer ring (3) is welded to the roll neck and the rubber waterproofing sheath (4) is fitted over the roll neck.
3. The waterproofing device according to claim 1, wherein the spacer ring (3) is made of Q235 steel.
4. A water-repellent device according to claim 1, characterized in that the rubber water-repellent sheath (4) is made of nitrile rubber.
5. The waterproofing device according to claim 1, wherein the sum of the lengths of the spacer ring (3) and the rubber waterproofing sheath (4) is greater than the distance between the sleeve (2) and the chock (5).
6. A water-repellent device according to claim 5, characterized in that the sum of the lengths of the spacer ring (3) and the rubber water-repellent cover (4) is 5mm longer than the distance between the nose sleeve (2) and the roll chock (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021575452.XU CN212944660U (en) | 2020-07-31 | 2020-07-31 | Water-proof device for flat head sleeve of connecting shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021575452.XU CN212944660U (en) | 2020-07-31 | 2020-07-31 | Water-proof device for flat head sleeve of connecting shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212944660U true CN212944660U (en) | 2021-04-13 |
Family
ID=75345545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021575452.XU Expired - Fee Related CN212944660U (en) | 2020-07-31 | 2020-07-31 | Water-proof device for flat head sleeve of connecting shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212944660U (en) |
-
2020
- 2020-07-31 CN CN202021575452.XU patent/CN212944660U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210413 |