Waterproof seat for pressed wheel of grinding wheel

By integrating waterproof bearings, external bearings, and internal pressure plates, the problem of poor sealing performance in grinding equipment is solved, achieving effective sealing and support, improving the stability and wear resistance of the equipment, and reducing maintenance costs.

CN223971484UActive Publication Date: 2026-03-06GUANGDONG XIN JI XIN IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing grinding equipment, the sealing performance between the shaft of the grinding wheel and the grinding chamber is poor, which leads to moisture leakage, affects the performance and stability of the equipment, and results in high maintenance costs.

Method used

It adopts a combination design of waterproof bearing, outer bearing and inner pressure plate. The waterproof part of the waterproof bearing is separated from the wear-resistant part. The outer bearing is tightly connected to the shaft through a locking sleeve. The inner pressure plate has a water storage tank inside to achieve effective sealing and support.

Benefits of technology

It improves sealing performance, prevents moisture leakage, enhances structural stability, and reduces equipment failure and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of grinding wheel pressed wheels of grinding equipment, in particular to a grinding wheel pressed wheel waterproof base, a waterproof bearing, an outer bearing and an inner pressing plate, the waterproof bearing, the outer bearing and the inner pressing plate are all arranged on a shaft rod of the grinding wheel pressed wheel in a sleeved mode, the waterproof bearing is provided with a waterproof part and a wear-resisting part, and the wear-resisting part is provided with a wear-resisting part. The outer bearing is provided with a locking sleeve connected with a shaft rod of a pressed wheel of the grinding wheel in a sleeved mode, and a water storage tank is arranged in the inner pressing plate. According to the utility model, through the separated design of the waterproof part and the wear-resistant part of the waterproof bearing, the water in the grinding cavity is prevented from seeping through the shaft fixing hole, and the wear-resistant property of the shaft rod during rotation is ensured. And the outer bearing is tightly sleeved with the shaft rod through the locking sleeve, so that the stability of the structure is enhanced. And a water storage tank is designed in the inner pressing plate, so that the waterproof effect is further improved, and water which possibly permeates is collected and stored, so that the water is prevented from diffusing to the outside of the grinding cavity.
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Description

Technical Field

[0001] This utility model relates to the field of grinding wheel pressing wheel technology in grinding equipment, and in particular to a waterproof seat for grinding wheel pressing wheel. Background Technology

[0002] In practical applications of grinding equipment, the grinding wheel is a key component, and the sealing performance between the shaft of the grinding wheel and the grinding chamber directly affects the overall performance and stability of the equipment.

[0003] The grinding chamber of grinding equipment is generally equipped with a fixed shaft hole for mounting the grinding wheel and the pressed wheel. In traditional designs, a single bearing structure is often used for support in the fixed shaft hole, and waterproofing is achieved by relying on gaskets or sealing rings. However, this design has many shortcomings, such as poor sealing effect, poor wear resistance, and high maintenance costs.

[0004] Especially during long-term, high-intensity grinding operations, the tiny gaps between the shaft and the grinding chamber often become the main channels for moisture leakage, causing moisture to leak out of the grinding chamber. This not only affects grinding efficiency but may also cause corrosion and damage to other parts of the equipment, so it is necessary to improve this. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a waterproof bearing seat for the grinding wheel's pressed roller. By integrating components such as a waterproof bearing, an outer bearing, and an inner pressure plate, it achieves effective sealing and support for the grinding wheel's pressed roller shaft at the fixed shaft hole. The separate design of the waterproof bearing's waterproof and wear-resistant parts ensures that moisture inside the grinding chamber does not seep out through the fixed shaft hole while also ensuring the shaft's wear resistance during rotation. The outer bearing is tightly fitted to the shaft via a locking sleeve, enhancing the structure's stability. Furthermore, the water storage tank design inside the inner pressure plate further improves the waterproofing effect by collecting and storing any water that may seep in, preventing moisture from spreading to the outside of the grinding chamber.

[0006] To achieve the above objectives, the present invention provides a waterproof bearing for a grinding wheel under pressure, comprising a waterproof bearing, an outer bearing, and an inner pressure plate, wherein the waterproof bearing, the outer bearing, and the inner pressure plate are all sleeved on the shaft of the grinding wheel under pressure.

[0007] The waterproof bearing is provided with a waterproof part and a wear-resistant part. The waterproof part is installed on the outside of the fixed shaft hole, and the wear-resistant part is provided inside the fixed shaft hole.

[0008] The outer bearing is coaxially disposed on the waterproof part, and the outer bearing is provided with a locking sleeve that is sleeved with the shaft of the grinding wheel and the pressure wheel;

[0009] The inner pressure plate is disposed in the wear-resistant part, and a water storage tank is disposed inside the inner pressure plate.

[0010] Preferably, the inner wall of the waterproof part is provided with a first fixing cavity, and a sealing ring is provided in the first fixing cavity.

[0011] Preferably, the sealing ring is provided with a fixing part and a sealing part, and the fixing part and the sealing part are integrally formed;

[0012] The fixing part is provided with a cavity that allows the sealing part to move, and the sealing part is inclinedly disposed in the cavity.

[0013] Preferably, the sealing part includes a fixing ring, a deformable ring, a first sleeve ring, and a second sleeve ring;

[0014] The fixing ring is disposed on the inner wall of the cavity, the first sleeve ring is disposed on the side of the fixing ring away from the cavity, and the deformable ring and the second sleeve ring are both disposed inside the cavity;

[0015] The inner diameter of the deformable ring gradually decreases in the direction away from the first sleeve ring.

[0016] Preferably, the wear-resistant part is provided with a second fixing cavity and a wear-resistant component.

[0017] The second fixing cavity includes a first fixing groove and a second fixing groove.

[0018] The wear-resistant part includes a contact portion and a limiting portion, which are integrally formed;

[0019] The contact portion is fixed to the first fixing groove for frictional connection with the shaft of the grinding wheel and the pressure wheel, and the limiting portion is fixed to the second fixing groove for limiting the rotation of the wear-resistant part.

[0020] Preferably, both ends of the contact portion are provided with guide inclined grooves.

[0021] Preferably, the locking sleeve is provided with a locking hole, and is threadedly connected to the locking hole by a screw and abuts against the shaft of the grinding wheel and the pressure wheel.

[0022] Preferably, the water storage tank is provided with water guide holes.

[0023] Preferably, the outer bearing includes an outer bearing housing and a bearing body, the bearing body being rotatably mounted on the outer bearing housing, and the locking sleeve being fixed to the inner ring of the bearing body.

[0024] Preferably, the wear-resistant part is provided with a threaded post that connects to the outer bearing, and the threaded post protrudes from the wear-resistant part so that a gap is provided between the wear-resistant part and the outer bearing.

[0025] The beneficial effects of this utility model are as follows: By integrating components such as a waterproof bearing, an outer bearing, and an inner pressure plate, this utility model achieves effective sealing and support for the grinding wheel shaft at the fixed shaft hole. The separate design of the waterproof and wear-resistant parts of the waterproof bearing ensures that water inside the grinding chamber does not seep out through the fixed shaft hole, while also ensuring the wear resistance of the shaft during rotation. The outer bearing is tightly fitted to the shaft through a locking sleeve, enhancing the structural stability. Furthermore, the water storage tank design inside the inner pressure plate further improves the waterproof effect, collecting and storing any water that may seep in, preventing water from spreading to the outside of the grinding chamber. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0028] Figure 3 This is a cross-sectional structural diagram of the wear-resistant part of this utility model.

[0029] The reference numerals in the figures include:

[0030] 1. Waterproof bearing; 11. Waterproof part; 111. First fixed cavity; 112. Sealing ring; 113. Fixed part; 114. Sealing part; 115. Cavity; 116. Fixed ring; 117. Deformation ring; 118. First sleeve ring; 119. Second sleeve ring; 12. Wear-resistant part; 121. Second fixed cavity; 1211. First fixed groove; 1212. Second fixed groove; 122. Wear-resistant part; 1221. Contact part; 1222. Limiting part; 1223. Guide inclined groove; 123. Screw hole post; 124. Clearance; 2. Outer bearing; 21. Locking sleeve; 211. Locking hole; 22. Outer shaft seat; 23. Bearing body; 3. Inner pressure plate; 31. Water storage tank; 311. Water guide hole. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings.

[0032] like Figures 1 to 3 As shown, the present invention provides a waterproof seat for a grinding wheel under pressure, comprising a waterproof bearing 1, an outer bearing 2, and an inner pressure plate 3. The waterproof bearing 1, the outer bearing 2, and the inner pressure plate 3 are all sleeved on the shaft of the grinding wheel under pressure, thereby connecting the waterproof seat to the grinding wheel under pressure.

[0033] The waterproof bearing 1 is provided with a waterproof part 11 and a wear-resistant part 12. The waterproof part 11 is installed on the inner side of the fixed shaft hole, which effectively prevents the leakage of water in the grinding chamber.

[0034] The wear-resistant part 12 is located on the outside of the fixed shaft hole. The wear-resistant part 12 is directly connected to the shaft rod by frictional rotation, ensuring that the grinding wheel is rotated normally by the pressure wheel.

[0035] The outer bearing 2 is coaxially mounted on the waterproof part 11. The outer bearing 2 is equipped with a locking sleeve 21 that engages with the shaft of the grinding wheel. The locking sleeve 21 tightly engages with the shaft, which not only enhances the stability of the structure but also supports the shaft of the grinding wheel, ensuring that the grinding wheel maintains good operating condition during long-term, high-intensity grinding operations and reducing equipment failures caused by wear.

[0036] The inner pressure plate 3 is disposed on the wear-resistant part 12. The inner pressure plate 3 is provided with a water storage tank 31. The water storage tank 31 can not only collect and store any water that may seep in, preventing water from spreading to the outside of the grinding chamber, but also detect and deal with water leakage problems in a timely manner by regularly inspecting and cleaning the water storage tank 31, thereby reducing the maintenance cost of the equipment.

[0037] By integrating components such as the waterproof bearing 1, the outer bearing 2, and the inner pressure plate 3, effective sealing and support of the grinding wheel's shaft at the fixed shaft hole are achieved. The separate design of the waterproof part 11 and the wear-resistant part 12 of the waterproof bearing 1 ensures that water inside the grinding chamber does not seep out through the fixed shaft hole, while also ensuring the wear resistance of the shaft during rotation. The outer bearing 2 is tightly fitted to the shaft through the locking sleeve 21, enhancing the structural stability. The water storage tank 31 inside the inner pressure plate 3 further improves the waterproof effect by collecting and storing any water that may seep in, preventing water from spreading to the outside of the grinding chamber.

[0038] like Figure 2 As shown, the inner wall of the waterproof part 11 in this embodiment is provided with a first fixing cavity 111, and a sealing ring 112 is provided in the first fixing cavity 111. By providing the sealing ring 112, as a key component of the waterproof part 11, the sealing performance between the shaft and the waterproof part 11 is significantly enhanced.

[0039] like Figure 3 As shown, the sealing ring 112 in this embodiment is provided with a fixing part 113 and a sealing part 114. The fixing part 113 and the sealing part 114 are integrally formed, which simplifies the installation process of the sealing ring 112. Since there is no need to install the fixing part 113 and the sealing part 114 separately, the installation steps and required tools are reduced. In addition, when the sealing ring 112 needs to be replaced, it can be simply removed as a whole and replaced with a new sealing ring 112, making the maintenance process simpler and faster.

[0040] The fixing part 113 is provided with a cavity 115 that allows the sealing part 114 to move, and the sealing part 114 is inclinedly disposed in the cavity 115.

[0041] The sealing part 114 is inclinedly disposed within the cavity 115. This design allows the sealing part 114 to undergo a certain deformation when subjected to external forces (such as the rotation or vibration of the grinding wheel by the pressure roller shaft), thereby better conforming to the shaft surface and reducing the possibility of leakage. This flexibility improves the adaptability of the seal, enabling the sealing ring 112 to maintain a high-efficiency sealing effect under different working conditions.

[0042] like Figure 2 As shown, the sealing part 114 in this embodiment includes a fixing ring 116, a deformable ring 117, a first sleeve ring 118, and a second sleeve ring 119.

[0043] The fixing ring 116 is disposed on the inner wall of the cavity 115, and the first sleeve ring 118 is disposed on the side of the fixing ring 116 away from the cavity 115. The deformable ring 117 and the second sleeve ring 119 are both disposed within the cavity 115. The arrangement of the first sleeve ring 118 and the second sleeve ring 119 simplifies the installation process of the sealing ring 112. It also enhances the sealing performance between the sealing part 114 and the grinding wheel shaft.

[0044] The inner diameter of the deformable ring 117 gradually decreases in the direction away from the first sleeve ring 118, so that the sealing part 114 is inclinedly disposed in the cavity 115. The design of the deformable ring 117 allows it to undergo radial deformation when subjected to shaft pressure, tightly fitting the shaft surface. This tight fit reduces leakage channels and significantly improves sealing performance.

[0045] like Figure 2 As shown, the wear-resistant part 12 in this embodiment is provided with a second fixing cavity 121 and a wear-resistant component 122. The second fixing cavity 121 includes a first fixing groove 1211 and a second fixing groove 1212. The wear-resistant component 122 includes a contact part 1221 and a limiting part 1222. The contact part 1221 and the limiting part 1222 are integrally formed.

[0046] The contact portion 1221 is fixed to the first fixing groove 1211 for frictional connection with the shaft of the grinding wheel being pressed. The limiting portion 1222 is fixed to the second fixing groove 1212 and is used to restrict the rotation of the wear-resistant part 122, thereby achieving an efficient, stable, and durable frictional connection between the wear-resistant part 12 and the shaft of the grinding wheel being pressed. This effectively resists frictional wear caused by shaft rotation and vibration, thus significantly extending the service life of the wear-resistant part 12.

[0047] like Figure 2As shown, both ends of the contact portion 1221 in this embodiment are provided with guide inclined grooves 1223. The design of the guide inclined grooves 1223 makes it easier for the grinding wheel to be connected to the pressure wheel shaft and the contact portion 1221, simplifies the installation steps, and improves the installation efficiency.

[0048] like Figure 2 As shown, in this embodiment, the locking sleeve 21 has a through locking hole 211, and is threadedly connected to the locking hole 211 by a screw and abuts against the shaft of the grinding wheel being pressed. This ensures that the locking sleeve 21 is tightly fixed to the shaft of the grinding wheel being pressed, thereby guaranteeing the stable operation of the grinding wheel being pressed.

[0049] like Figure 2 As shown, the water storage tank 31 in this embodiment is provided with water guide holes 311. The water guide holes 311 enable more orderly and efficient management of the water flow within the water storage tank 31. Through the water guide holes 311, the water flow can be guided to specific areas to meet specific process or operational requirements. This design helps reduce water waste and improve equipment operating efficiency.

[0050] like Figure 2 As shown, the outer bearing 2 in this embodiment includes an outer shaft seat 22 and a bearing body 23. The bearing body 23 is rotatably mounted on the outer shaft seat 22, and the locking sleeve 21 is fixed to the inner ring of the bearing body 23, so that the locking sleeve 21 is installed on the outer bearing 2, ensuring that the grinding wheel is pressed normally.

[0051] like Figure 2 As shown, the wear-resistant part 12 in this embodiment is provided with a threaded post 123 that is connected to the outer bearing 2. The threaded post 123 protrudes from the wear-resistant part 12, so that a gap 124 is provided between the wear-resistant part 12 and the outer bearing 2.

[0052] The threaded post 123 facilitates the connection between the wear-resistant part 12 and the outer bearing 2. The gap 124 between the wear-resistant part 12 and the outer bearing 2 facilitates the dissipation of heat generated by the frictional connection between the wear-resistant part 12 and the grinding wheel bearing shaft, thereby protecting the wear-resistant part 12 and the grinding wheel bearing shaft from high-temperature damage.

[0053] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A grinder wheel press wheel water-proof seat, characterized in that: Including waterproof bearing (1), outer bearing (2) and inner pressure plate (3), waterproof bearing (1), outer bearing (2) and inner pressure plate (3) are all set on the shaft of the grinding wheel pressing wheel, The waterproof bearing (1) is provided with a waterproof part (11) and a wear-resistant part (12), the waterproof part (11) is installed on the outside of the fixed shaft hole, and the wear-resistant part (12) is arranged in the fixed shaft hole; The outer bearing (2) is coaxially arranged in the waterproof part (11), and the outer bearing (2) is provided with a locking sleeve (21) sleeved with the shaft of the grinding wheel pressing wheel; The inner pressure plate (3) is arranged in the wear-resistant part (12), and the inner pressure plate (3) is provided with a water storage tank (31) inside.

2. The grinder wheel press wheel waterproof seat according to claim 1, characterized in that: The inner wall of the waterproof part (11) is provided with a first fixed cavity (111), and the first fixed cavity (111) is provided with a sealing ring (112) inside.

3. A grinder wheel presser wheel water-proof seat according to claim 2, characterized in that: The sealing ring (112) is provided with a fixed part (113) and a sealing part (114), and the fixed part (113) and the sealing part (114) are integrally formed; The fixed part (113) is provided with a cavity (115) allowing the sealing part (114) to move, and the sealing part (114) is arranged in the cavity (115) in an inclined manner.

4. The grinder wheel press wheel water-proof seat according to claim 3, characterized in that: The sealing part (114) comprises a fixed ring (116), a deformation ring (117), a first sleeve ring (118) and a second sleeve ring (119); The fixed ring (116) is arranged in the inner wall of the cavity (115), the first sleeve ring (118) is arranged on the side of the fixed ring (116) away from the cavity (115), and the deformation ring (117) and the second sleeve ring (119) are arranged in the cavity (115); The inner diameter of the deformation ring (117) gradually decreases in the direction away from the first sleeve ring (118).

5. The press wheel for abrasive wheel according to claim 1, wherein: The wear-resistant part (12) is provided with a second fixed cavity (121) and a wear-resistant part (122), The second fixed cavity (121) comprises a first fixed groove (1211) and a second fixed groove (1212), The wear-resistant part (122) comprises a contact part (1221) and a limiting part (1222), and the contact part (1221) and the limiting part (1222) are integrally formed; The contact part (1221) is fixed in the first fixed groove (1211) for frictional connection with the shaft of the grinding wheel pressing wheel, and the limiting part (1222) is fixed in the second fixed groove (1212) and is used for limiting rotation of the wear-resistant part (122).

6. A grinder wheel presser wheel water-proof seat according to claim 5, characterized in that: Both ends of the contact part (1221) are provided with an inclined groove (1223).

7. The grinder wheel press wheel water-proof seat according to claim 1, characterized in that: The locking sleeve (21) is provided with a locking hole (211), and the locking hole (211) is threadedly connected with a screw rod and abuts against the shaft of the grinding wheel pressing wheel.

8. The grinder wheel press wheel water-proof seat according to claim 1, characterized in that: The water storage tank (31) is provided with a water guide hole (311).

9. The grinder wheel press wheel water-proof seat according to claim 1, characterized in that: The outer bearing (2) comprises an outer shaft seat (22) and a bearing body (23), the bearing body (23) is rotatably arranged in the outer shaft seat (22), and the locking sleeve (21) is fixed to the inner ring of the bearing body (23).

10. The press wheel for abrasive wheel according to claim 1, wherein: The wear-resistant part (12) is provided with a threaded hole column (123) connected with the outer bearing (2), the threaded hole column (123) protrudes from the wear-resistant part (12), so that a gap (124) is arranged between the wear-resistant part (12) and the outer bearing (2).