Supporting bearing for coating roller and coating roller

Abstract

The supporting bearing for the coating roller comprises a self-aligning roller bearing, the self-aligning roller bearing is arranged between an outer sleeve and an inner sleeve, the self-aligning roller bearing is in transition fit with the outer sleeve, the self-aligning roller bearing is in transition fit with the inner sleeve, and the right side of the self-aligning roller bearing is positioned by shaft shoulders of the outer sleeve and the inner sleeve. The left outer ring of the self-aligning roller bearing is positioned by an end cover II; the left inner ring of the self-aligning roller bearing is limited by a shaft sleeve sleeved at the left end of the outer cylindrical surface of the inner sleeve; static sealing is formed between the shaft sleeve and the inner sleeve through an O-shaped sealing ring, dynamic sealing is formed between the second end cover and the shaft sleeve through a first framework oil seal, and dynamic sealing is formed between the outer sleeve and a shaft shoulder of the inner sleeve through a second framework oil seal. The supporting bearing for the coating roller is good in sealing performance, the coating quality of the surface of a base material of the coating roller is remarkably improved, meanwhile, the supporting bearing is convenient to mount, dismount and maintain, and the using effect is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of coating equipment, and particularly relates to a supporting bearing for a coating roller and the coating roller. BACKGROUND

[0002] In the coating roller process, the coating roller is used to uniformly coat the coating on the substrate surface. The coating roller is installed on the equipment base through the supporting bearing at both ends, and the stability and precision of the operation play a crucial role in the coating quality. However, the existing coating roller supporting bearing has many problems, such as Figure 1 As shown in the figure, the inner ring 1 of the prior art supporting bearing for the coating roller is wide and provided with a raceway, and the machining precision is very high. The outer ring of the bearing is a double-row structure. When the supporting bearing is assembled, the bearing clearance is adjusted by the depth of the outer thread of the end cover 2, and the screw 3 is fastened by drilling. It is required to have high operating skills for the machining and assembly personnel to keep the bearing clearance uniform, otherwise the supporting bearing at one end may fail prematurely. The coating layer on the substrate surface is uneven, and the quality inspection is not up to standard. In the high-speed operation process, the bearing is easily rubbed to generate a large amount of heat, which reduces the lubrication performance and further affects the service life of the bearing, and even causes the coating roller to operate unstably, resulting in uneven coating thickness and other defects. At the same time, some dust and particles may be generated in the production process of the coating, and these impurities are easily entered into the supporting bearing, which aggravates the bearing wear and further reduces the reliability and production efficiency of the equipment. In addition, the existing supporting bearing is not convenient to install and maintain, and the maintenance cost is also high, which requires a large amount of time, labor and resources. Most of these problems are caused by factors such as insufficient bearing precision, uneven bearing clearance, poor sealing performance, etc.

[0003] With the rapid development of science and technology, customers have higher and higher requirements for the coating quality of the substrate surface, so it is urgent to develop a supporting bearing with high precision, uniform bearing clearance, good sealing performance and convenient installation and maintenance. SUMMARY

[0004] The utility model discloses a kind of coating roller supporting bearings, to solve the problems of supporting bearing precision not easy to guarantee, bearing clearance not uniform, poor sealing performance, prone to heat jam, vulnerable to impurities, inconvenient installation and maintenance in prior art, improve the stability and precision of the operation of coating roller, prolong the service life of bearing, reduce equipment maintenance cost.

[0005] Another object of the utility model is to provide a kind of coating roller, substrate surface coating quality is significantly improved, and it is convenient to install, disassemble and maintain, and use effect is good.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A supporting bearing for a coating roller comprises a self-aligning roller bearing, which is arranged between an outer sleeve and an inner sleeve, and is in transition fit with the outer sleeve and the inner sleeve. The right side of the self-aligning roller bearing is positioned by the shaft shoulder of the outer sleeve and the inner sleeve, and the left side of the self-aligning roller bearing is positioned by the outer ring of the shaft sleeve and the shaft sleeve. The static seal between the shaft sleeve and the inner sleeve is formed by an O-shaped sealing ring, the dynamic seal between the end cover two and the shaft sleeve is formed by a skeleton oil seal one, and the dynamic seal between the shaft shoulder of the outer sleeve and the inner sleeve is formed by a skeleton oil seal two.

[0008] The O-shaped sealing ring is arranged in the ring groove of the inner cylindrical surface of the shaft sleeve, the skeleton oil seal one is arranged in the end cover two, the lip of the skeleton oil seal one is in interference fit with the outer surface of the shaft sleeve, and the left side of the self-aligning roller bearing is sealed. The skeleton oil seal two is arranged at the right end of the outer sleeve, the lip of the skeleton oil seal two is in interference fit with the shoulder of the inner sleeve, and the right side of the self-aligning roller bearing is sealed.

[0009] The end cover two is connected to the inner cylindrical surface of the outer sleeve by external threads, and is fastened by the screw two after the left side of the outer ring of the self-aligning roller bearing is pressed and positioned.

[0010] The screw two is radially assembled along the end cover two. The outer sleeve has a threaded hole matched with the screw two, and the end cover two is drilled with a positioning hole matched with the screw two. The threaded hole and the positioning hole form an assembly hole for assembling the screw two.

[0011] The shaft sleeve and the inner sleeve are in clearance fit.

[0012] The outer sleeve is provided with an oil cup hole corresponding to the oil inlet of the self-aligning roller bearing, and the oil cup is arranged in the oil cup hole of the outer sleeve and is opposite to the lubricating ring groove channel of the outer ring of the self-aligning roller bearing.

[0013] The shaft sleeve and the inner sleeve are fixed by a clamping screw.

[0014] A coating roller comprises a coating roller body and the supporting bearing for a coating roller as described above installed at the shaft extensions at both ends of the coating roller body.

[0015] A coating roller comprises a coating roller body and the supporting bearing for a coating roller as described above installed at the shaft extensions at both ends of the coating roller body.

[0016] When installed and used, two clamping screws arranged at an interval of 90° along the circumference are swaged at the shaft extensions at both ends of the coating roller body.

[0017] The utility model discloses a novel structure, the outer ring of the self-aligning roller bearing is integrated, the inner ring and the inner sleeve of the self-aligning roller bearing are designed in a split type, the bearing has good workability, is beneficial to the batch production of the self-aligning roller bearing, has high machining precision and uniform play. The combination of the skeleton oil seal and the O-shaped sealing ring is adopted for sealing, so that the sealing is more reliable. The utility model discloses using the utility model, the coating quality of the substrate surface is obviously improved, convenient installation and removal and maintenance are facilitated, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is prior art structure schematic diagram;

[0019] Figure 2 is the structure schematic diagram of the utility model;

[0020] Figure 3 The utility model discloses installation and use structure schematic diagram;

[0021] In the drawing, 1, inner ring 2, end cover one 3, screw one, 4, inner sleeve 5, axle sleeve 6, tight screw 7, O-shaped sealing ring 8, end cover two 9, skeleton seal one 10, screw two 11, oil cup 12, self-aligning roller bearing 13, outer sleeve 14, skeleton seal two, 15, coating roller is with support bearing, 16, coating roller. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in combination with the drawings and specific implementation.

[0023] Figure 2In the middle, the self-aligning roller bearing 12 is arranged between the outer sleeve 13 and the inner sleeve 4, and is in transition fit with the outer sleeve 13 and the inner sleeve 4, and is positioned by the shaft shoulder of the outer sleeve 13 and the inner sleeve 4 on the right side respectively; the end cover two 8 arranged on the inner cylindrical surface of the outer sleeve 13 is positioned by screwing the outer thread to the left side of the outer ring of the self-aligning roller bearing 12, and then drilling a positioning hole at the corresponding position of the threaded hole of the screw two 10 of the end cover two 8 and the outer sleeve 3, and then fastening the screw two 10, and the positioning hole is a light hole; the shaft sleeve 5 is sleeved on the left end of the outer cylindrical surface of the inner sleeve 4, and is in clearance fit with the inner sleeve 4 to limit the left side of the inner ring of the self-aligning roller bearing 12; the O-shaped sealing ring 7 is arranged in the ring groove of the inner cylindrical surface of the shaft sleeve 5, and plays a static sealing role; during installation and use, the two circumferentially arranged locking screws 6 are screwed on the shaft extension at both ends of the coating roller 16, and simultaneously play a locking role on the installation of the shaft sleeve 5 and the inner sleeve 4; the skeleton oil seal one 9 is arranged in the end cover two 8, and the lip portion is in interference fit with the outer surface of the shaft sleeve 5 to seal the left side of the self-aligning roller bearing 12; the skeleton oil seal two 14 is arranged at the right end of the outer sleeve 13, and the lip portion is in interference fit with the shoulder portion of the inner sleeve 4 to seal the right side of the self-aligning roller bearing 12; the skeleton oil seal one 9 and the skeleton oil seal two 14 play a dynamic sealing role when the outer sleeve 13 and the inner sleeve 4 rotate relatively.

[0024] Figure 3 In the middle, the self-aligning roller bearing 12 is arranged between the outer sleeve 13 and the inner sleeve 4, and is in transition fit with the outer sleeve 13 and the inner sleeve 4, and is positioned by the shaft shoulder of the outer sleeve 13 and the inner sleeve 4 on the right side respectively; the end cover two 8 arranged on the inner cylindrical surface of the outer sleeve 13 is positioned by screwing the outer thread to the left side of the outer ring of the self-aligning roller bearing 12, and then drilling a positioning hole at the corresponding position of the threaded hole of the screw two 10 of the end cover two 8 and the outer sleeve 3, and then fastening the screw two 10, and the positioning hole is a light hole; the shaft sleeve 5 is sleeved on the left end of the outer cylindrical surface of the inner sleeve 4, and is in clearance fit with the inner sleeve 4 to limit the left side of the inner ring of the self-aligning roller bearing 12; the O-shaped sealing ring 7 is arranged in the ring groove of the inner cylindrical surface of the shaft sleeve 5, and plays a static sealing role; during installation and use, the two circumferentially arranged locking screws 6 are screwed on the shaft extension at both ends of the coating roller 16, and simultaneously play a locking role on the installation of the shaft sleeve 5 and the inner sleeve 4; the skeleton oil seal one 9 is arranged in the end cover two 8, and the lip portion is in interference fit with the outer surface of the shaft sleeve 5 to seal the left side of the self-aligning roller bearing 12; the skeleton oil seal two 14 is arranged at the right end of the outer sleeve 13, and the lip portion is in interference fit with the shoulder portion of the inner sleeve 4 to seal the right side of the self-aligning roller bearing 12; the skeleton oil seal one 9 and the skeleton oil seal two 14 play a dynamic sealing role when the outer sleeve 13 and the inner sleeve 4 rotate relatively.

Claims

1. A support bearing for a coating roller, characterized in that: The assembly includes a self-aligning roller bearing (12), which is positioned between the outer sleeve (13) and the inner sleeve (4). The self-aligning roller bearing (12) is transitionally fitted with the outer sleeve (13) and the inner sleeve (4). The right side of the self-aligning roller bearing (12) is positioned by the shoulder of the outer sleeve (13) and the inner sleeve (4). The left outer ring of the self-aligning roller bearing (12) is positioned by the end cap (8). The left inner ring of the self-aligning roller bearing (12) is limited by the bushing (5) fitted on the left end of the outer cylindrical surface of the inner sleeve (4). The bushing (5) and the inner sleeve (4) form a static seal by an O-ring (7). The end cap (8) and the bushing (5) form a dynamic seal by a skeleton oil seal (9). The shoulder of the outer sleeve (13) and the inner sleeve (4) forms a dynamic seal by a skeleton oil seal (14).

2. The support bearing for the coating roller according to claim 1, characterized in that: The O-ring (7) is built into the annular groove on the inner cylindrical surface of the bushing (5). The first skeleton oil seal (9) is set inside the second end cover (8). The lip of the first skeleton oil seal (9) is interference-fitted with the outer surface of the bushing (5) to seal the left side of the self-aligning roller bearing (12). The second skeleton oil seal (14) is set at the right end of the outer sleeve (13). The lip of the second skeleton oil seal (14) is interference-fitted with the shoulder of the inner sleeve (4) to seal the right side of the self-aligning roller bearing (12).

3. The support bearing for the coating roller according to claim 1, characterized in that: The end cap 2 (8) is connected to the inner cylindrical surface of the outer sleeve (13) by external thread. After pressing and positioning the left side of the outer ring of the self-aligning roller bearing (12), it is fastened by screw 2 (10).

4. The support bearing for the coating roller according to claim 3, characterized in that: The second screw (10) is radially assembled along the second end cap (8); the outer sleeve (13) has a threaded hole that mates with the second screw (10), and the second end cap (8) has a positioning hole that mates with the second screw (10). The threaded hole and the positioning hole together form an assembly hole for assembling the second screw (10).

5. The support bearing for the coating roller according to claim 1, characterized in that: The bushing (5) and the inner sleeve (4) are fitted with a clearance.

6. The support bearing for the coating roller according to claim 1, characterized in that: The outer sleeve (13) is provided with an oil cup hole corresponding to the oil inlet of the self-aligning roller bearing (12). The oil cup (11) is set in the oil cup hole on the outer sleeve (13) and is directly opposite to the lubrication ring groove channel of the outer ring of the self-aligning roller bearing (12).

7. The support bearing for the coating roller according to claim 1, characterized in that: The bushing (5) and the inner sleeve (4) are fixed by set screws (6).

8. A coating roller, characterized in that: The coating roller includes a coating roller body and a support bearing for the coating roller as described in any one of claims 1-6, which is mounted on the shaft extensions at both ends of the coating roller body.

9. A coating roller, characterized in that: The coating roller includes a coating roller body and a support bearing for the coating roller as described in claim 7, which is mounted on the shaft extensions at both ends of the coating roller body.

10. The coating roller according to claim 9, characterized in that: During installation and use, two set screws (6) arranged at 90° along the circumference are screwed onto the shaft extensions at both ends of the coating roller.

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