Shock-absorbing seat for RIM box of Knole brake

Abstract

The utility model discloses a shock-absorbing seat for an RIM box of a Knole brake. The shock-absorbing seat comprises a base, an upper cover and a shock-absorbing component, by adopting the damping assembly of the spring-rubber composite structure, vibration and impact in the vertical direction and the horizontal direction can be effectively isolated at the same time, the damping effect is obviously better than that of a traditional single damping structure, the design of the rubber damping block can absorb high-frequency vibration, the spring can cope with low-frequency large impact, and the damping effect is good. Comprehensive control over vibration of different frequencies is achieved, damage of vibration to electronic components in the RIM box is effectively reduced, the probability of occurrence of welding spot loosening, line breakage and other faults is reduced, the service life of the RIM box is prolonged, the anti-corrosion capacity of the damping base is improved through the anti-corrosion coating, the service life of the whole device is further prolonged, and the service life of the RIM box is prolonged. And by arranging a limiting convex block and a limiting groove, the damping assembly is prevented from being excessively deformed or damaged under the extreme condition, and the reliability and safety of the device are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rail vehicle braking systems, and in particular to a Knorr brake RIM box shock absorber seat. Background Technology

[0002] Knorr brakes are one of the core components of the braking system for rail vehicles. The RIM box, in particular, integrates a variety of sophisticated electronic control modules and relays, playing a crucial role in the braking performance and operational safety of rail vehicles.

[0003] However, rail vehicles are subjected to various vibrations and impacts during operation, such as friction between wheels and rails, inertial forces during vehicle startup and braking, and bumps caused by uneven tracks. These vibrations and impacts are transmitted to the RIM box. Long-term vibration and impact can easily cause loose solder joints and broken circuits in the electronic components inside the RIM box, leading to control module failure and affecting the normal operation of the brake. Vibration may also cause the sealing structure of the RIM box to fail, allowing dust and moisture to enter the box, damaging electronic components and reducing the reliability and service life of the brake. Existing technologies typically use simple rubber pads or springs as shock absorption devices, but these devices have limited shock absorption effects and cannot effectively isolate high-frequency vibrations and low-frequency large impacts. Rubber materials are also prone to aging, leading to a decline in shock absorption performance.

[0004] Therefore, it is necessary to invent a Knorr brake RIM box shock absorber to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing RIM box shock absorber seats cannot effectively isolate high-frequency vibrations and low-frequency large impacts, and that rubber materials are prone to aging, leading to a decline in shock absorption performance. Therefore, this invention provides a Knorr brake RIM box shock absorber seat.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a Knorr brake RIM box shock absorber base, comprising a base, a top cover, and a shock absorber assembly disposed between the base and the top cover. The base is used for fixed connection with the vehicle body, and the top cover is used for connecting and supporting the RIM box. The shock absorber assembly includes an outer sleeve, an inner sleeve, a spring, a rubber damping block, and a transverse rubber shock absorber block. The outer sleeve is fixedly connected to the bottom of the top cover, and the inner sleeve is fixedly connected to the top of the base. The spring is located inside the inner sleeve and its top is fixedly connected to the top of the outer sleeve. The rubber damping block fills the space between the spring and the inner sleeve, as well as between the inner sleeve and the outer sleeve. The transverse rubber shock absorber block is disposed at the edge connection between the base and the top cover.

[0007] As a further description of the above technical solution: a guide post and a guide sleeve are provided between the base and the top cover. The guide post is fixed on the base, and the guide sleeve is fixed on the top cover. The guide post can slide inside the guide sleeve. A buffer rubber ring is provided between the guide post and the guide sleeve.

[0008] As a further description of the above technical solution: the bottom of the upper cover is provided with a limiting protrusion, and a limiting groove is provided at the corresponding position on the base. When the vibration or impact is too great, the limiting protrusion will contact the limiting groove to limit the excessive displacement of the upper cover.

[0009] As a further description of the above technical solution: the upper cover is provided with an annular sealing groove, and a waterproof rubber sealing ring is installed in the sealing groove;

[0010] As a further description of the above technical solution: the upper cover is provided with a plurality of heat dissipation holes, the heat dissipation holes are inclined, and the base is also provided with fixing bolts.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. This utility model, by adopting a spring-rubber composite structure for the shock absorption component, can effectively isolate vibrations and impacts in both vertical and horizontal directions. The shock absorption effect is significantly better than that of traditional single shock absorption structures. The rubber damping block is designed to absorb high-frequency vibrations, while the spring can cope with low-frequency large impacts. This achieves comprehensive control of vibrations at different frequencies, effectively reducing the damage of vibrations to electronic components inside the RIM box, reducing the probability of faults such as loose solder joints and broken circuits, and extending the service life of the RIM box. The anti-corrosion coating improves the corrosion resistance of the shock absorption seat itself, further extending the service life of the entire device.

[0013] 2. This utility model improves the reliability and safety of the device by setting limiting protrusions and limiting grooves to prevent excessive deformation or damage of the shock absorption components under extreme conditions. The waterproof rubber sealing ring effectively prevents dust and moisture from entering the RIM box, protecting the internal electronic components from the influence of the external environment and improving the reliability of the brake. The inclined heat dissipation hole design ensures heat dissipation while preventing external dust and water from directly entering the RIM box, achieving a balance between heat dissipation and protection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the Knorr brake RIM box shock absorber base of the present invention;

[0015] Figure 2 This is a cross-sectional view of the overall structure of the Knorr brake RIM box shock absorber base of the present invention;

[0016] Figure 3This is a cross-sectional view of the shock-absorbing assembly of the Knorr brake RIM box shock absorber seat of the present invention;

[0017] Figure 4 This is a schematic diagram of the heat dissipation hole structure of the Knorr brake RIM box shock absorber seat of the present invention.

[0018] 1. Base; 11. Fixing bolts; 2. Shock absorption assembly; 21. Inner sleeve; 22. Outer sleeve; 23. Spring; 24. Rubber damping block; 3. Top cover; 31. Sealing groove; 32. Rubber sealing ring; 33. Heat dissipation hole; 4. Lateral rubber shock absorption block; 5. Guide post; 6. Guide sleeve; 7. Buffer rubber ring; 8. Limiting protrusion; 9. Limiting groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 The present invention provides a technical solution: a Knorr brake RIM box shock absorber base, including a base 1, an upper cover 3 and a shock absorber component 2 disposed between the base 1 and the upper cover 3. The base 1 is used for fixed connection with the vehicle body, and the upper cover 3 is used for connecting the box to support the RIM box.

[0021] like Figures 1-3 As shown, the shock absorption assembly 2 includes an outer sleeve 22, an inner sleeve 21, a spring 23, a rubber damping block 24, and a transverse rubber shock absorption block 4. The outer sleeve 22 is fixedly connected to the bottom of the upper cover 3, and the inner sleeve 21 is fixedly connected to the top of the base 1. The spring 23 is located inside the inner sleeve 21 and its top is fixedly connected to the top of the outer sleeve 22. The rubber damping block 24 fills the space between the spring 23 and the inner sleeve 21, as well as between the inner sleeve 21 and the outer sleeve 22. The transverse rubber shock absorption block 4 is located at the edge connection between the base 1 and the upper cover 3. A guide post 5 and a guide sleeve 6 are provided between the base 1 and the upper cover 3. The guide post 5 is fixed on the base 1, and the guide sleeve 6 is fixed on the upper cover 3. The guide post 5 can slide inside the guide sleeve 6. A buffer rubber ring 7 is provided between the guide post 5 and the guide sleeve 6.

[0022] The bottom of the top cover 3 is provided with a limiting protrusion 8, and a limiting groove 9 is provided at the corresponding position on the base 1. When the vibration or impact is too great, the limiting protrusion 8 will contact the limiting groove 9 to limit the excessive displacement of the top cover 3. The top cover 3 is provided with an annular sealing groove 31, and a waterproof rubber sealing ring 32 is installed in the sealing groove 31.

[0023] like Figure 4 As shown, the upper cover 3 is provided with multiple heat dissipation holes 33, which are inclined. The base 1 is also provided with fixing bolts 11. All metal parts of the shock absorber are coated with anti-corrosion coating. The anti-corrosion coating adopts a multi-layer structure, including primer, intermediate paint and topcoat.

[0024] Therefore, when the rail vehicle is running, the vibrations and impacts generated are transmitted to the base 1 through the vehicle body. Then, the spring 23 and rubber damping block 24 in the shock absorption assembly 2 work together to absorb and buffer the vertical vibrations and impacts, while the lateral rubber shock absorber 4 absorbs lateral vibrations. The guide post 5 and guide sleeve 6 ensure that the upper cover 3 maintains a stable movement trajectory during vibration, and the buffer rubber ring 7 further enhances the shock absorption effect. The limiting protrusion 8 and limiting groove 9 limit the displacement of the upper cover 3 when the vibration is too large, preventing damage to the shock absorption assembly 2. The rubber sealing ring 32 prevents dust and moisture from entering the RIM box, protecting the internal electronic components. The heat dissipation hole 33 ensures that the heat inside the RIM box is dissipated, maintaining the normal operating temperature.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A shock absorber base for a Knorr brake RIM box, characterized in that: The device includes a base (1), a top cover (3), and a shock-absorbing assembly (2) disposed between the base (1) and the top cover (3). The base (1) is used to fix the device to the vehicle body, and the top cover (3) is used to connect and support the RIM box. The shock-absorbing assembly (2) includes an outer sleeve (22), an inner sleeve (21), a spring (23), a rubber damping block (24), and a transverse rubber shock-absorbing block (4). The outer sleeve (22) is fixedly connected to the bottom of the top cover (3), and the inner sleeve (21) is fixedly connected to the top of the base (1). The spring (23) is located inside the inner sleeve (21) and its top is fixedly connected to the top of the outer sleeve (22). The rubber damping block (24) is filled between the spring (23) and the inner sleeve (21) and between the inner sleeve (21) and the outer sleeve (22). The transverse rubber shock-absorbing block (4) is disposed at the edge connection between the base (1) and the top cover (3).

2. The Knorr brake RIM box shock absorber according to claim 1, characterized in that: A guide post (5) and a guide sleeve (6) are provided between the base (1) and the top cover (3). The guide post (5) is fixed on the base (1) and the guide sleeve (6) is fixed on the top cover (3). The guide post (5) can slide inside the guide sleeve (6). A buffer rubber ring (7) is provided between the guide post (5) and the guide sleeve (6).

3. The Knorr brake RIM box shock absorber according to claim 2, characterized in that: The bottom of the top cover (3) is provided with a limiting protrusion (8), and a limiting groove (9) is provided at the corresponding position on the base (1). When the vibration or impact is too great, the limiting protrusion (8) will contact the limiting groove (9) to limit the excessive displacement of the top cover (3).

4. A Knorr brake RIM box shock absorber as described in claim 3, characterized in that: The upper cover (3) is provided with an annular sealing groove (31), and a waterproof rubber sealing ring (32) is installed in the sealing groove (31).

5. A Knorr brake RIM box shock absorber according to claim 4, characterized in that: The upper cover (3) is provided with a plurality of heat dissipation holes (33), which are inclined, and the base (1) is also provided with fixing bolts (11).

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