Bearing waterproof structure and rubber roller device
By using lip seals and limiting rings in the bearing waterproof structure, the problem of water accumulation and rust in the bearing is solved, achieving waterproofing and lubrication of the bearing, extending the bearing's service life and reducing production costs.
Patent Information
- Application Number
- CN202423308851.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Bearings are prone to water accumulation and rust, which can cause abnormal rotation of the rubber roller assembly, affect the normal operation of the machine, and frequent bearing replacements increase production costs.
The bearing adopts a waterproof structure, including a bushing, bearing, gland and lip seal. The lip seal prevents external liquid from entering the bearing, and the combination of a limit ring and grease nipple achieves waterproofing and lubrication of the bearing.
It effectively prevents external liquids from entering the bearing, ensuring normal bearing operation, extending bearing life, reducing replacement frequency, and lowering production costs.
Smart Images
Figure CN223594734U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing technical field especially relates to a bearing waterproof structure and rubber roll device. BACKGROUND
[0002] In order to guarantee various rubber roll assemblies can normally operate and have longer service life, need often to the rubber roll assembly cleaning, lead to with the bearing sleeve of rubber roll assembly connection inside easy to accumulate water, easy make the bearing rust, finally lead to rubber roll assembly appear rotation abnormality, influence machine normal operation, and often replace bearing can improve production cost. SUMMARY
[0003] The utility model discloses at least one of the technical problems in the related art is solved to some extent.
[0004] In the first aspect, the utility model discloses a bearing waterproof structure for connecting with the roller shaft, which comprises:
[0005] The shaft sleeve has a cavity and is open at both ends;
[0006] The bearing is coaxially arranged with the shaft sleeve, located in the shaft sleeve, and the left end of the roller shaft is inserted into the bearing, and the roller shaft is interference-fitted with the bearing;
[0007] The gland is located at the left end of the shaft sleeve, the right end face of the gland is attached to the left end of the shaft sleeve and blocks the left port of the shaft sleeve, and the gland is detachably connected with the shaft sleeve;
[0008] The lip-shaped sealing ring is sleeved on the roller shaft, located in the shaft sleeve and on the right side of the bearing, and comprises a first ring wall, a second ring wall and a connecting ring, the outer side of the connecting ring is connected with the right end of the first ring wall, the inner side of the connecting ring is connected with the right end of the second ring wall, the second ring wall is located on the inner side of the first ring wall, the outer peripheral wall of the first ring wall is attached to the inner peripheral wall of the shaft sleeve, and the inner peripheral wall of the second ring wall is attached to the roller shaft.
[0009] The bearing waterproof structure according to the utility model has the following technical effects: the lip-shaped sealing ring can prevent water from entering the bearing of the shaft sleeve, ensuring the normal operation of the bearing.
[0010] According to some embodiments of the utility model, the inner peripheral wall of the shaft sleeve is provided with a first limiting ring, the left end of the first ring wall can abut against the right end of the first limiting ring, and the right end of the bearing can abut against the left end of the first limiting ring.
[0011] According to some embodiments of the present application, the right end surface of the gland is provided with a second limiting ring, the second limiting ring is inserted into the shaft sleeve, and the second limiting ring and the first limiting ring jointly limit the bearing from moving in the left-right direction.
[0012] According to some embodiments of the present application, the right end of the second limiting ring abuts against the left end of the bearing.
[0013] According to some embodiments of the present application, the gland is provided with an oil injection nozzle, and the oil injection nozzle is in communication with the inner cavity of the shaft sleeve.
[0014] According to some embodiments of the present application, the second ring wall is inclined towards the axis direction of the roller shaft from right to left.
[0015] According to some embodiments of the present application, the outer peripheral wall of the second ring wall is provided with an annular reinforcing rib.
[0016] According to some embodiments of the present application, the outer peripheral wall of the roller shaft is provided with an annular protrusion, the left end of the annular protrusion is inserted into the shaft sleeve and abuts against the right end surface of the bearing, and the inner peripheral wall of the second ring wall is attached to the outer peripheral wall of the annular protrusion.
[0017] According to some embodiments of the present application, the gland and the shaft sleeve are connected through bolts.
[0018] In a second aspect, the present application also provides a rubber roller device comprising the bearing waterproof structure according to the first aspect of the present application.
[0019] The rubber roller device according to the present application has at least the following technical effects: the rubber roller device adopts the bearing waterproof structure, the lip-shaped sealing ring can play a waterproof role, external liquid is prevented from entering the bearing in the shaft sleeve, and the bearing can work normally.
[0020] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0021] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
[0022] Figure 1 is a structure diagram of the bearing waterproof structure of some embodiments of the present application;
[0023] Figure 2 is a sectional view of the bearing waterproof structure of some embodiments of the present application;
[0024] Figure 3 is an exploded view of the bearing waterproof structure of some embodiments of the present application;
[0025] Figure 4 is an exploded sectional view of the bearing waterproof structure of some embodiments of the present application.
[0026] Reference Signs:
[0027] The shaft sleeve 100, the first limiting ring 101, the bearing 110, the lip seal ring 120, the connecting ring 130, the first ring wall 140, the second ring wall 150, the annular reinforcing rib 151, the gland 160, the second limiting ring 161, the oil injection nozzle 162, the roller shaft 170, and the annular protrusion 180. DETAILED DESCRIPTION
[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.
[0029] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.
[0030] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical solution.
[0032] The embodiments of the present application are described in detail below.
[0033] According to some embodiments of the present application, refer to Figures 1 to 4The bearing waterproof structure is used in connection with the roller shaft 170, and the axis direction of the roller shaft 170 is the left-right direction. The bearing waterproof structure comprises a shaft sleeve 100, a bearing 110, a gland 160 and a lip seal ring 120. The shaft sleeve 100 has an inner cavity and is open at both left and right ends, and the axis direction of the shaft sleeve 100 is the left-right direction. The bearing 110 is coaxially arranged with the shaft sleeve 100, and the bearing 110 is located in the shaft sleeve 100. The left end of the roller shaft 170 is inserted into the bearing 110, and the outer peripheral wall of the roller shaft 170 is in interference fit with the inner peripheral wall of the bearing 110. The gland 160 is located at the left end of the shaft sleeve 100, and the right end face of the gland 160 is attached to the left end of the shaft sleeve 100 and blocks the left end port of the shaft sleeve 100. The gland 160 is detachably connected with the shaft sleeve 100 by bolts. The lip seal ring 120 is sleeved on the roller shaft 170, and the lip seal ring 120 is located in the shaft sleeve 100 and on the right side of the bearing 110. The lip seal ring 120 is located at the right end port of the shaft sleeve 100. The lip seal ring 120 comprises a first ring wall 140, a second ring wall 150 and a connecting ring 130. The axis direction of the first ring wall 140 and the second ring wall 150 is the left-right direction, and the first ring wall 140 and the second ring wall 150 are coaxially arranged. The outer side of the connecting ring 130 is connected with the right end of the first ring wall 140, and the inner side of the connecting ring 130 is connected with the right end of the second ring wall 150. The second ring wall 150 is located on the inner side of the first ring wall 140. The outer peripheral wall of the first ring wall 140 is attached to the inner peripheral wall of the shaft sleeve 100, and the inner peripheral wall of the second ring wall 150 is attached to the roller shaft 170.
[0034] It can be understood that the lip seal ring 120 can play a waterproof role, so as to prevent external liquid from entering the bearing 110 of the shaft sleeve 100 and ensure that the bearing 110 can work normally.
[0035] Preferably, referring to Figures 2 to 4 The inner peripheral wall of the shaft sleeve 100 is provided with a first limiting ring 101, and the left end of the first ring wall 140 can abut against the right end of the first limiting ring 101. The first limiting ring 101 can limit the left movement of the lip seal ring 120. The right end of the bearing 110 can abut against the left end of the first limiting ring 101, and the first limiting ring 101 can limit the right movement of the bearing 110 to prevent the bearing 110 from being separated from the shaft sleeve 100.
[0036] Preferably, referring to Figure 2 and Figure 4 The right end face of the gland 160 is provided with a second limiting ring 161, and the second limiting ring 161 is inserted into the shaft sleeve 100. The second limiting ring 161 can limit the left movement of the bearing 110, and the second limiting ring 161 and the first limiting ring 101 jointly limit the left-right movement of the bearing 110. Further, the right end of the second limiting ring 161 abuts against the left end of the bearing 110, and the cooperation of the second limiting ring 161 and the first limiting ring 101 makes the bearing 110 unable to move along the left-right direction relative to the shaft sleeve 100.
[0037] According to some embodiments of the present application, refer to Figures 2 to 4 The cover 160 is provided with an oil injection nozzle 162, which is in communication with the inner cavity of the shaft sleeve 100. The grease can be injected into the inner cavity of the shaft sleeve 100 and the ball channel of the bearing 110 through the oil injection nozzle 162 to lubricate the balls.
[0038] Preferably, refer to Figure 2 and Figure 4 The second ring wall 150 is inclined towards the axis of the roller shaft 170 from right to left, and the second ring wall 150 is elastic, so that the second ring wall 150 can be closely attached to the roller shaft 170, thereby improving the waterproof performance.
[0039] According to some embodiments of the present application, refer to Figures 2 to 4 The outer peripheral wall of the second ring wall 150 is provided with an annular reinforcing rib 151, which improves the strength of the second ring wall 150 and avoids the rupture of the second ring wall 150.
[0040] According to some embodiments of the present application, refer to Figure 2 and Figure 3 The outer peripheral wall of the roller shaft 170 is provided with an annular protrusion 180, the left end of the annular protrusion 180 is inserted into the shaft sleeve 100 and abuts against the right end surface of the bearing 110, thereby limiting the continuous leftward movement of the roller shaft 170 relative to the shaft sleeve 100. The inner peripheral wall of the second ring wall 150 is attached to the outer peripheral wall of the annular protrusion 180.
[0041] In the description of the present application, the description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0042] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A waterproof bearing structure for connection with a roller shaft (170), characterized in that, The bearing waterproof structure includes: The bushing (100) has an inner cavity and is open at both the left and right ends; A bearing (110) is coaxially arranged with the bushing (100), the bearing (110) is located inside the bushing (100), the left end of the roller (170) is inserted into the bearing (110), and the roller (170) and the bearing (110) are interference-fitted. A pressure cap (160) is located at the left end of the bushing (100). The right end face of the pressure cap (160) is attached to the left end of the bushing (100) and blocks the left port of the bushing (100). The pressure cap (160) and the bushing (100) are detachably connected. A lip seal (120) is fitted onto the roller shaft (170). The lip seal (120) is located inside the bushing (100) and on the right side of the bearing (110). The lip seal (120) includes a first ring wall (140), a second ring wall (150), and a connecting ring (130). The outer side of the connecting ring (130) is connected to the right end of the first ring wall (140), and the inner side of the connecting ring (130) is connected to the right end of the second ring wall (150). The second ring wall (150) is located inside the first ring wall (140). The outer peripheral wall of the first ring wall (140) is attached to the inner peripheral wall of the bushing (100), and the inner peripheral wall of the second ring wall (150) is attached to the roller shaft (170).
2. The bearing waterproof structure according to claim 1, characterized in that, The inner peripheral wall of the bushing (100) is provided with a first limiting ring (101), the left end of the first ring wall (140) can abut against the right end of the first limiting ring (101), and the right end of the bearing (110) can abut against the left end of the first limiting ring (101).
3. The bearing waterproof structure according to claim 2, characterized in that, The right end face of the pressure cap (160) is provided with a second limiting ring (161). The second limiting ring (161) is inserted into the bushing (100). The second limiting ring (161) and the first limiting ring (101) together restrict the bearing (110) from moving in the left and right directions.
4. The bearing waterproof structure according to claim 3, characterized in that, The right end of the second limiting ring (161) abuts against the left end of the bearing (110).
5. The bearing waterproof structure according to claim 1, characterized in that, The pressure cap (160) is provided with an oil injection nozzle (162), which is connected to the inner cavity of the bushing (100).
6. The bearing waterproof structure according to claim 1, characterized in that, The second annular wall (150) is inclined from right to left toward the axis of the roller (170).
7. The bearing waterproof structure according to claim 6, characterized in that, The outer peripheral wall of the second annular wall (150) is provided with annular reinforcing ribs (151).
8. The bearing waterproof structure according to claim 6, characterized in that, The outer peripheral wall of the roller (170) is provided with an annular protrusion (180). The left end of the annular protrusion (180) is inserted into the bushing (100) and abuts against the right end face of the bearing (110). The inner peripheral wall of the second annular wall (150) is attached to the outer peripheral wall of the annular protrusion (180).
9. The bearing waterproof structure according to claim 1, characterized in that, The pressure cap (160) and the bushing (100) are connected by bolts.
10. A rubber roller device, characterized in that, It includes a bearing waterproof structure as described in any one of claims 1 to 9.