Elastic wheel with adjustable compression amount, wheel set and railway vehicle
By designing an adjustable compression amount structure and an anti-retardant pad limit groove structure in the elastic wheel, the problem of wheel slowing is solved, the safe operation performance of the wheel is improved, and the traditional return cable structure is replaced by conductive metal reeds. Avoid loosening or breaking problems.
Patent Information
- Application Number
- CN202420095045.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-01-12
AI Technical Summary
After the existing elastic wheels run for a long time, the rubber parts will experience creep, wear and aging, resulting in slow wheel problems and affecting the safe operation of wheels and rail vehicles.
An elastic wheel with adjustable compression amount is designed. By adjusting the bolts, the adjustment ring position is controlled to control the compression amount of elastic vibration-absorbing rubber parts and optimize the problem of wheel slowness. At the same time, anti-slow pads and limit groove structures are installed to prevent excessive slowness, and conductive metal reeds are used to replace the traditional return cable structure to avoid loosening or breaking problems.
By adjusting the compression amount of elastic vibration damping parts, it can effectively reduce or prevent the problem of wheel slowness, improve the safe operation performance of the wheel, and avoid the problem of loosening or breaking of the return cable structure.
Smart Images
Figure CN222512110U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of rail vehicles, and in particular to an elastic wheel with adjustable compression, a wheelset and a rail vehicle. Background Art
[0002] In the field of rail transit, with the mature application of light rail and low-floor vehicles, elastic wheels are used more and more widely. Wheel sluggishness is one of the common and extremely harmful faults in rail vehicle operation. When the wheel is sluggish, relative sliding occurs between the wheel rim and the wheel center, which may cause problems such as the inability to transmit torque or changes in the inner distance of the wheelset. In severe cases, it may cause derailment accidents and endanger driving safety. Existing elastic wheels basically use elastic materials such as rubber to reduce vibration and noise. After long-term operation, rubber parts will inevitably experience creep, wear, aging and performance degradation. This causes relative sliding between the wheel rim and the wheel center, resulting in typical wheel sluggishness problems, affecting the safe operation of wheels and rail vehicles. Utility Model Content
[0003] The technical solutions provided by this application are as follows:
[0004] The present application provides an elastic wheel with adjustable compression, comprising a wheel hoop, a wheel center, an elastic vibration damping member, a pressure ring and an adjustment ring;
[0005] The radial outer edge of the wheel center is provided with a mounting notch, the pressure ring is arranged in the mounting notch, and the pressure ring, the radial outer edge of the wheel center and the wheel hoop surround and form an annular inner cavity for accommodating the elastic vibration damping member; the elastic vibration damping member is arranged in the annular inner cavity;
[0006] The wheel center and the pressure ring located on the annular inner cavity side are both provided with an annular groove, and the adjustment ring is arranged in the annular groove; the wheel center and the pressure ring are also both provided with an axially penetrating adjustment bolt, and the end of the adjustment bolt abuts against the adjustment ring.
[0007] Furthermore, there are multiple adjusting bolts, and the multiple adjusting bolts are evenly distributed along the circumferential direction of the wheel.
[0008] The elastic wheel of the present application further comprises an adjustment pad arranged in one-to-one correspondence with the adjustment bolts. Specifically, an adjustment pad is arranged between the wheel center and the adjustment bolts, and an adjustment pad is also arranged between the pressure ring and the adjustment bolts.
[0009] Furthermore, the elastic vibration damping member is a rubber member, preferably an annular rubber member.
[0010] Furthermore, an anti-slowdown pad is provided on the wheel center, and a limiting groove is provided on the wheel center corresponding to the position of the anti-slowdown pad of the wheel center; the anti-slowdown pad has a protrusion, and the protrusion is located in the limiting groove.
[0011] Furthermore, there are a plurality of anti-slowdown pads, which are arranged at intervals along the circumferential direction of the wheel center.
[0012] Furthermore, a conductive spring is provided on the outer side surface of the raised portion of the anti-delay pad, and the conductive spring is attached to the wheel hoop.
[0013] Furthermore, the wheel center is also provided with a wheel inner hole, and the wheel inner hole is used as a mounting hole position of the axle assembly.
[0014] The present application provides a wheel pair, comprising the above-mentioned elastic wheel with adjustable compression amount.
[0015] The present application also provides a rail vehicle, comprising the above-mentioned wheel pair.
[0016] Beneficial effects:
[0017] Compared with the prior art, the elastic wheel with adjustable compression amount of the present application comprises: a wheel hoop, a wheel center, an elastic vibration damper, a pressure ring and an adjustment ring; a mounting notch is provided on the radial outer edge of the wheel center, the pressure ring is arranged in the mounting notch, and an annular inner cavity for accommodating the elastic vibration damper is formed between the pressure ring, the radial outer edge of the wheel center and the wheel hoop; the elastic vibration damper is arranged in the annular inner cavity; the wheel center and the pressure ring located on the side of the annular inner cavity are both provided with an annular groove, and the adjustment ring is arranged in the annular groove; the wheel center and the pressure ring are also both provided with an axially penetrating adjustment bolt, and the end of the adjustment bolt abuts against the adjustment ring. The elastic wheel with adjustable compression of the present application mainly controls the position of the adjusting ring by adjusting the bolt, thereby controlling the compression of the elastic vibration-damping rubber part and optimizing the wheel sluggishness problem; and, an anti-sluggishness pad and a limit groove structure are provided to prevent the elastic wheel from being excessively slow and the wheel rim and wheel center from having excessive turning angles; in addition, a conductive metal spring sheet is used to replace the traditional return cable structure, effectively avoiding the loosening or breakage problem caused by wheel sluggishness or foreign objects pulling the return cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 A schematic cross-sectional structure diagram of an elastic wheel with adjustable compression amount according to the present application;
[0020] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at position I in the middle;
[0021] Figure 3 for Figure 1 A schematic diagram of the local enlarged structure at II in the middle;
[0022] Figure 4 A three-dimensional exploded view of an elastic wheel with adjustable compression amount for this application;
[0023] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at position I in the middle;
[0024] Figure 6 A front view of an elastic wheel with adjustable compression for the present application;
[0025] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at III in the middle;
[0026] Figure numerals: 1. adjusting bolt, 2. adjusting pad, 3. wheel bolt, 4. pressure ring, 5. adjusting ring, 6. elastic vibration damping part, 7. wheel hoop, 8. anti-slowdown pad, 9. wheel center, 10. raised part, 11. conductive spring, 12. screw. DETAILED DESCRIPTION
[0027] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0028] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.
[0031] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.
[0032] See also Figures 1 to 7 , the present application provides an elastic wheel with adjustable compression, comprising a wheel hoop 7, a wheel center 9, an elastic vibration damping member 6, a pressure ring 4 and an adjustment ring 5;
[0033] The radial outer edge of the wheel center is provided with a mounting notch, the pressure ring is arranged in the mounting notch, and the pressure ring, the radial outer edge of the wheel center and the wheel hoop surround and form an annular inner cavity for accommodating the elastic vibration damping member; the elastic vibration damping member is arranged in the annular inner cavity;
[0034] The wheel center and the pressure ring located on the annular inner cavity side are both provided with an annular groove, and the adjustment ring is arranged in the annular groove; the wheel center and the pressure ring are also both provided with an axially penetrating adjustment bolt 1, and the end of the adjustment bolt abuts against the adjustment ring.
[0035] If the elastic wheel of the utility model experiences relative sliding or rotation of the wheel rim with respect to the pressure ring and the wheel core, resulting in a delay problem, the adjusting bolt can be further screwed to adjust the screwing depth of the adjusting bolt to abut the adjusting ring, and the adjusting ring can further move in the axial direction to compress the elastic vibration damping member. The compression amount of the elastic vibration damping member can be increased by adjustment, thereby compensating for the insufficient friction between the elastic vibration damping member and the wheel rim and the wheel core due to creep of the elastic vibration damping member, thereby alleviating or preventing the delay problem.
[0036] Furthermore, there are multiple adjusting bolts, and the multiple adjusting bolts are evenly distributed along the circumferential direction of the wheel. The elastic wheel of the present application also includes an adjusting pad 2 arranged in a one-to-one correspondence with the adjusting bolts. Specifically, an adjusting pad is arranged between the wheel center and the adjusting bolt, and an adjusting pad is also arranged between the pressure ring and the adjusting bolt. The setting of the adjusting pad, on the one hand, can be used as a gasket for the adjusting bolt in the threaded connection, and on the other hand, when the wheel is slow, the adjusting pad can be directly removed, and the screwing depth of the adjusting bolt can be further screwed to increase the compression of the elastic damping component, thereby compensating for the problem of insufficient friction between the elastic damping component and the wheel hoop and the wheel center due to the creep of the elastic damping component.
[0037] Preferably, the elastic vibration damping member is a rubber member, preferably an annular rubber member. The screwing depth of the adjusting bolt is adjusted to abut against the adjusting ring, and the adjusting ring further moves along the axial direction to compress the annular rubber member, thereby increasing the compression amount of the annular rubber member and compensating for the problem of insufficient friction between the annular rubber member and the wheel rim and the wheel center, thereby alleviating or preventing the problem of sluggishness.
[0038] As a preferred embodiment, the wheel core is also provided with an anti-slowdown pad 8, and a limit groove is provided on the wheel core corresponding to the position of the anti-slowdown pad of the wheel core; the anti-slowdown pad 8 has a protrusion 10, and the protrusion is located in the limit groove. With the arrangement of the anti-slowdown pad and the limit groove structure, when the wheel hoop rotates relative to the pressure ring and the wheel core and exceeds a certain angle, the protrusion of the anti-slowdown pad contacts and blocks the wall of the limit groove on the wheel hoop, effectively preventing the rotation angle from further increasing and causing serious slowdown problems.
[0039] More preferably, there are a plurality of anti-slowdown pads, and the plurality of anti-slowdown pads are arranged at intervals along the circumferential direction of the wheel center.
[0040] As a preferred embodiment, the outer side surface of the raised portion of the anti-slowdown pad is provided with a conductive spring sheet 11, and the conductive spring sheet is attached to the wheel hoop. The anti-slowdown pad 8 of the present application is fixed to the wheel center 9 by screws 12, and the conductive ring sheet is tightly attached to the wheel hoop; the conductive spring sheet is used to replace the traditional return cable structure, and the conductive spring sheet has a compact structure and will not protrude outside the wheel contour, effectively avoiding the problem of the return cable loosening or breaking caused by foreign objects pulling or scratching during operation.
[0041] The elastic wheel with adjustable compression of the present application, in addition to the wheel center 9, wheel hoop 7, pressure ring 4, vibration-damping rubber part and wheel bolt 3 of the existing elastic wheel, also has an adjustment ring 5, an adjustment pad 2 and an adjustment bolt 1 for adjusting the rubber compression; and an anti-delay pad 8 for preventing excessive sluggishness, which mainly controls the position of the adjusting ring through the adjusting bolt, thereby controlling the compression of the elastic vibration-damping rubber part and optimizing the wheel sluggishness problem; and, an anti-delay pad and a limit groove structure are provided to prevent the elastic wheel from being excessively slow and the wheel hoop and wheel center from having excessive turning angle problems; in addition, a conductive metal spring sheet is used to replace the traditional return cable structure, effectively avoiding the problem of wheel sluggishness or loosening or breaking of the return cable caused by foreign objects pulling on it.
[0042] As a preferred embodiment, the wheel center is also provided with a wheel inner hole, and the wheel inner hole is used as a mounting hole position of the axle assembly.
[0043] The present application provides a wheel pair, comprising the above-mentioned elastic wheel with adjustable compression. The beneficial effects of the wheel pair provided by the present application correspond to the beneficial effects of the elastic wheel with adjustable compression provided by the present application.
[0044] The present application also provides a rail vehicle, comprising the above-mentioned wheel pair. The beneficial effects of the rail vehicle pair provided by the present application correspond to the beneficial effects of the wheel pair provided by the present application.
[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An elastic wheel with adjustable compression, characterized in that: It includes a wheel hoop, a wheel center, an elastic vibration damping member, a pressure ring and an adjusting ring; The radial outer edge of the wheel center is provided with a mounting notch, the pressure ring is arranged in the mounting notch, and the pressure ring, the radial outer edge of the wheel center and the wheel hoop surround and form an annular inner cavity for accommodating the elastic vibration damping member; the elastic vibration damping member is arranged in the annular inner cavity; The wheel center and the pressure ring located on the annular inner cavity side are both provided with an annular groove, and the adjustment ring is arranged in the annular groove; the wheel center and the pressure ring are also both provided with an axially penetrating adjustment bolt, and the end of the adjustment bolt abuts against the adjustment ring.
2. The elastic wheel with adjustable compression according to claim 1, characterized in that: There are multiple adjusting bolts, and the multiple adjusting bolts are evenly distributed along the circumferential direction of the wheel.
3. The elastic wheel with adjustable compression according to claim 2, characterized in that: It also includes adjustment pads which are arranged in one-to-one correspondence with the adjustment bolts.
4. The elastic wheel with adjustable compression according to claim 1, characterized in that: The elastic vibration damping component is a rubber component.
5. The elastic wheel with adjustable compression according to any one of claims 1 to 4, characterized in that: The wheel center is also provided with an anti-slowdown pad, and a limiting groove is provided on the wheel center corresponding to the position of the anti-slowdown pad of the wheel center; the anti-slowdown pad is provided with a protrusion, and the protrusion is located in the limiting groove.
6. The elastic wheel with adjustable compression according to claim 5, characterized in that: The number of the anti-slowdown pads is multiple, and the multiple anti-slowdown pads are arranged at intervals along the circumferential direction of the wheel center.
7. The elastic wheel with adjustable compression according to claim 5, characterized in that: The outer side surface of the raised portion of the anti-delay pad is provided with a conductive spring sheet, and the conductive spring sheet is attached to the wheel hoop.
8. The elastic wheel with adjustable compression according to any one of claims 1-4, 6-7, characterized in that: The wheel center is also provided with a wheel inner hole, and the wheel inner hole is used as a mounting hole position of the axle assembly.
9. A wheel pair, characterized in that: An elastic wheel with adjustable compression amount comprising the elastic wheel as claimed in any one of claims 1-8.
10. A rail vehicle, characterized in that: Comprising the wheel pair as claimed in claim 9.