Novel dustproof slewing bearing
By installing a dustproof component on the inner side of the outer ring of the slewing bearing, including a flange, sealing strip, damping and spring, the problem of loosening of the sealing strip due to axial force is solved, and the sealing effect and dustproof capability are improved.
Patent Information
- Application Number
- CN202520186996.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-02-06
AI Technical Summary
In dusty environments, axial forces can cause the sealing strips of slewing bearings to loosen, affecting their dustproof performance.
Dustproof components, including flanges, sealing strips, damping, and springs, are installed on the upper and lower parts of the inner side of the outer ring. The sealing strip is pressed tightly by a pressure plate, and the combination of ball bearings and C-shaped outer ring structure reduces the loosening of the sealing strip caused by shaking.
The sealing strip's fixation was improved, enhancing the slewing bearing's airtightness and dustproof effect, and preventing seal failure due to vibration.
Smart Images
Figure CN223563275U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of slewing bearing, specifically point to a novel dustproof slewing bearing. BACKGROUND
[0002] Slewing bearing is a kind of large bearing that can bear comprehensive load, and is widely used in various devices needing rotary support. However, in the working environment with more dust, such as mine, construction site, etc., the dustproof problem of slewing bearing has always been a technical problem.
[0003] The existing dustproof measures are mostly to set sealing rubber strips at the upper and lower gap positions of the connection between the inner ring and the outer ring, which is easy to shake up and down when the slewing bearing is working under axial force, and after long time shaking, it is easy to cause the sealing rubber strip and the inner and outer ring connection of the slewing bearing to loosen, affecting the dustproof effect. UTILITY MODEL CONTENTS
[0004] The technical problem to be solved by the utility model is that the slewing bearing is easy to cause the sealing rubber strip to loosen under axial force.
[0005] To solve the above problems, the technical scheme adopted by the utility model is as follows: the novel dustproof slewing bearing provided by the utility model comprises an outer ring and an inner ring, the inner ring and the outer ring are slidably connected on the inner side, the inner side of the outer ring is provided with dustproof assemblies on the upper and lower parts, the dustproof assemblies are provided with two groups, the two groups of dustproof assemblies are movably connected with the upper and lower parts of the inner ring respectively, the dustproof assemblies comprise a baffle and a sealing rubber strip, the baffle is fixedly connected with the inner side edge of the outer ring, a damper and a spring are fixedly arranged on the lower part of the baffle, a pressing plate is fixedly arranged on the lower part of the damper and the spring, and the pressing plate is connected with the sealing rubber strip in abutting mode.
[0006] Further, grooves are formed on the upper and lower parts of the inner ring, and the sealing rubber strip is movably embedded and connected with the grooves.
[0007] Further, the outer ring is provided with a C-shaped structure, a connecting groove is formed on the inner side of the outer ring, and the outer side of the inner ring is slidably embedded and connected with the connecting groove.
[0008] Further, a plurality of rolling balls are rollingly connected on the inner side of the connecting groove, and the rolling balls are rollingly connected with the inner and outer rings.
[0009] Further, the baffle is provided with an L-shaped structure, and a certain gap is left between the lower part of the baffle and the upper part of the inner ring.
[0010] Further, the sealing rubber strip is slidably connected with the side wall of the baffle, the gap between the sealing rubber strip and the baffle and the inner ring is in sliding connection, the sealing rubber strip is located at the position of abutting and blocking the gap between the baffle and the inner ring, and the height of the sealing rubber strip is higher than the gap between the baffle and the inner ring.
[0011] The beneficial effects achieved by the utility model are as follows:
[0012] The novel dustproof slewing bearing provided by the scheme is provided with a pressing plate on the upper and lower parts of the inner side of the outer ring, which is used for pressing and tightly sealing the sealing rubber strip and the gap between the inner ring and the flange, and a spring and a damper are arranged between the pressing plate and the flange to avoid the sealing rubber strip from being loosened due to vibration and affecting the airtightness and dustproof effect. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a whole structure schematic view of the utility model;
[0014] Figure 2 It is a whole cross section schematic view of the utility model;
[0015] Figure 3 It is Figure 2 It is a local enlarged schematic view of A in the middle.
[0016] Wherein, 1, outer ring, 101, connecting groove, 2, inner ring, 201, groove, 3, ball, 4, dustproof assembly, 401, flange, 402, damper, 403, spring, 404, pressing plate, 405, sealing rubber strip.
[0017] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor are within the protection scope of the utility model.
[0019] As Figures 1-3 The utility model discloses a novel dustproof slewing bearing, which comprises an outer ring 1 and an inner ring 2, the inner ring 2 and the outer ring 1 are slidably connected, the upper and lower parts of the inner side of the outer ring 1 are each provided with a dustproof assembly 4, the dustproof assembly 4 is provided with two groups, the two groups of dustproof assemblies 4 are movably connected to the upper and lower parts of the inner ring 2 respectively, the dustproof assembly 4 comprises a flange 401 and a sealing rubber strip 405, the flange 401 is fixedly connected to the inner side edge of the outer ring 1, a damper 402 and a spring 403 are fixedly arranged at the lower part of the flange 401, a pressing plate 404 is fixedly arranged at the lower part of the damper 402 and the spring 403, and the lower part of the pressing plate 404 is connected to the sealing rubber strip 405.
[0020] As Figure 3As shown, the inner ring 2 is provided with a groove 201 on the upper and lower parts, the sealing rubber strip 405 is movably connected with the groove 201, the outer ring 1 is provided as a C-shaped structure, the inner side of the outer ring 1 is provided with a connecting groove 101, the outer side of the inner ring 2 is slidably connected with the connecting groove 101, the connecting groove 101 is rotatably connected with a ball 3, the ball 3 is rotatably connected with the inner ring 2 and the outer ring 1, the retaining edge 401 is provided as an L-shaped structure, the lower part of the retaining edge 401 is provided with a certain gap with the upper part of the inner ring 2, the sealing rubber strip 405 is slidably connected with the side wall of the retaining edge 401, the gap between the sealing rubber strip 405, the retaining edge 401 and the inner ring 2 is slidably connected, the sealing rubber strip 405 is located at the position of the gap between the retaining edge 401 and the inner ring 2, and the sealing rubber strip 405 is higher than the height of the gap between the retaining edge 401 and the inner ring 2.
[0021] In use, when the device works, the inner ring 2 and the outer ring 1 rotate relatively, the retaining edge 401 can drive the damping 402, the spring 403 and the pressing plate 404 to slide relative to the sealing rubber strip 405 in the groove 201, the position of the sealing rubber strip 405 is fixed at the position of blocking the gap between the retaining edge 401 and the inner ring 2 under the pressing force of the pressing plate 404, and when the inner ring 2 and the outer ring 1 rotate relatively, the damping 402 and the spring 403 can avoid the loosening of the gap between the sealing rubber strip 405, the retaining edge 401 and the inner ring 2 when the inner ring 2 and the outer ring 1 are subjected to axial force and relatively shake, and the upper and lower parts of the connection between the outer ring 1 and the inner ring 2 are sealed and dustproof.
[0022] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by the above description, without departing from the spirit of the present application, similar structural modes and embodiments can be designed without creative design, which should belong to the protection scope of the present application.
Claims
1. A novel dustproof slewing bearing, characterized in that, It includes an outer ring and an inner ring, which are slidably connected to each other on their inner sides. The upper and lower parts of the inner side of the outer ring are provided with dustproof components. There are two sets of dustproof components, which are movably connected to the upper and lower parts of the inner ring respectively. Each dustproof component includes a retaining edge and a sealing strip. The retaining edge is fixedly connected to the inner edge of the outer ring. A damper and a spring are fixedly provided at the lower part of the retaining edge. A pressure plate is fixedly provided at the lower part of the damper and the spring. The lower part of the pressure plate is abutted and connected to the sealing strip.
2. The novel dustproof slewing bearing according to claim 1, characterized in that: The inner ring has grooves on both the upper and lower parts, and the sealing strip is movably fitted into the grooves.
3. A novel dustproof slewing bearing according to claim 2, characterized in that: The outer ring is designed with a C-shaped structure, and a connecting groove is provided on the inner side of the outer ring. The outer side of the inner ring and the connecting groove are slidably fitted together.
4. A novel dustproof slewing bearing according to claim 3, characterized in that: A ball bearing is rolled inside the connecting groove, and the ball bearing is rolled to the inner and outer rings.
5. A novel dustproof slewing bearing according to claim 4, characterized in that: The flange is designed with an L-shaped structure, and a certain gap is left between the lower part of the flange and the upper part of the inner ring.
6. A novel dustproof slewing bearing according to claim 5, characterized in that: The sealing strip and the side wall of the retaining edge are slidably connected. The gap between the sealing strip, the retaining edge, and the inner ring is slidably connected. The sealing strip is positioned to block the gap between the retaining edge and the inner ring. The sealing strip is higher than the height of the gap between the retaining edge and the inner ring.