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公开(公告)号：EP4056447A1
公开(公告)日：2022-09-14
申请号：EP21851372.9
申请日：2021-02-10
发明人： MA, Lijun , ZHOU, Pingyu , QIAO, Qingfeng , WANG, Xu , ZHANG, Zhenxian
IPC分类号： B61F7/00
摘要： A gauge-variable wheelset and a rail vehicle. The gauge-variable wheelset comprises an axle (10), a pair of wheels (30), a pair of shaft sleeves (20), an outer sleeve (40) and a linkage mechanism. A section of first non-self-locking threads (21) are arranged on the inner periphery of each shaft sleeve, rotating directions of the pair of first non-self-locking threads are opposite one another, and the pair of wheels (30) are fastened to the pair of shaft sleeves; two sections of second non-self-locking threads (14) which form a non-self-locking thread pair together with the first non-self-locking threads are arranged on the axle (10) at an interval; the wheels (30) are mounted on the axle (10) by means of the shaft sleeves, and the first non-self-locking threads match the second non-self-locking threads; and the outer sleeve (40) is rotatably connected outside the axle (10), the linkage mechanism is mounted between the axle (10) and the outer sleeve (40) and used for locking or unlocking the rotation of the outer sleeve relative to the axle, and when the linkage mechanism unlocks the rotation of the outer sleeve (40) relative to the axle (10) and the wheels (30) are in an unloaded state, the pair of wheels (30) are pushed to synchronously rotate, such that the pair of wheels (30) are close to or far away from each other in order to achieve a variable gauge. The gauge-variable wheelset has simple gauge-variable operation and high gauge-variable reliability.
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公开(公告)号：EP3778342A1
公开(公告)日：2021-02-17
申请号：EP18914523.8
申请日：2018-09-20
发明人： WANG, Xu , QIAO, Qingfeng , ZHOU, Pingyu , WEI, Jiaqi , KUAI, Rongsheng
摘要： A gauge-changing wheelset, comprising wheels (6), an axle (7), and locking mechanisms; the wheels (6) are respectively provided at both ends of the axle (7), and are connected to the axle (7) through splines; the locking mechanisms are respectively provided on exterior sides of the wheels (6) and located in axle-box bodies at both ends of the axle (7); the locking mechanisms are connected to the wheels (6) for locking and unlocking the wheels (6), so as to change gauges of the wheels (6). The gauge-changing wheelset improve the versatility and reliability, and is simple in structure, small in change of current vehicle structures and facilitates batch modification of existing vehicles.
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3.发明公开
公开(公告)号：EP3936405A1
公开(公告)日：2022-01-12
申请号：EP20825701.4
申请日：2020-05-18
发明人： MA, Lijun , ZHOU, Pingyu , WANG, Xu , QIAO, Qingfeng , LI, Hengkui , WANG, Yutao , SONG, Xiaowen
摘要： A locking mechanism (3) of a gauge-changing wheelset, a gauge-changing wheelset and a gauge-changing bogie. The locking mechanism includes: a traction electromagnet (32) and a locking pin (33), the traction electromagnet (32) includes a traction coil (32-1) and a movable core (32-2) being controlled to move by turning on and off the traction coil (32-1), the locking pin (33) is fixedly connected to an end of the movable core (32-2) away from the traction coil (32-1), a plurality of locking holes (41) are disposed on an inner hub of each of wheels (4) at intervals in an axial direction, and the movable core (32-2) may drive the locking pin (33) to insert into or remove from the locking holes (41) to lock or unlock the wheels (4). The gauge-changing wheelset includes wheels (4) and an axle (5) splined to the wheels, a locking mechanism (3) and lateral drive mechanisms (1), both ends of the axle (5) located outside the wheels (4) are respectively supported in an axle box body (7); the locking mechanism (1) is respectively disposed on the inner side of each of the wheels (4), the lateral drive mechanisms (1) are respectively disposed on the outer side of each of the wheels (4), and is fixed on the axle box body (7), the lateral drive mechanism (1) includes an electric cylinder (11) having an extension end for pushing or pulling unlocked wheels to change the gauge of wheels.
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公开(公告)号：EP3778340A1
公开(公告)日：2021-02-17
申请号：EP18914157.5
申请日：2018-09-21
发明人： ZHANG, Zhenxian , WANG, Xu , QIAO, Qingfeng , PENG, Guoping , LI, Zhongwen
IPC分类号： B61F7/00
摘要： A locking mechanism for a gauge-changing wheelset, comprising an outer sleeve (1) and locking pins (2); opposite sides outside the outer sleeve (1) are provided with bosses (11) axially extending along the outer sleeve (1), and a plurality of flutes (12) are disposed at intervals along the length directions of the bosses (11); the locking pins (2) are inserted into the flutes (12), and can be switched among the plurality of flutes (12) under the action of an external force to change a gauge.
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5.发明公开
公开(公告)号：EP4043315A1
公开(公告)日：2022-08-17
申请号：EP21851478.4
申请日：2021-02-23
发明人： WANG, Haitao , WANG, Xu , QIAO, Qingfeng , YIN, Hao , HU, Haitao
摘要： A thrust conversion mechanism for a gauge-variable wheelset, an unlocking device, and a gauge-variable wheelset. A thrust conversion mechanism (100) comprises a mounting base (101) and a pushing shaft (102), wherein the mounting base (101) is provided with a horizontal through hole in a horizontal direction; the pushing shaft (102) movably passes through the horizontal through hole; an open groove is formed where the pushing shaft (102) is opposite the mounting base (101) and is located at one of the pushing shaft (102) and the mounting base (101), the axis of the open groove is perpendicular to the axis of the horizontal through hole, a positioning member is mounted in the open groove, and the positioning member is connected to the open groove by means of an elastic pre-tightening member; and the other one of the pushing shaft (102) and the mounting base (101) is configured with a positioning recess, and a positioning end of the positioning member matches the positioning recess.
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公开(公告)号：EP3779044A1
公开(公告)日：2021-02-17
申请号：EP18914590.7
申请日：2018-09-21
发明人： CHEN, Shuo , LI, Zhongwen , WANG, Xu , QIAO, Qingfeng , YU, Dahai
摘要： A ground gauge-changing facility for a gauge-changing wheelset comprises a pair of support rails (10) provided in parallel, and a pair of first guide rails (20), a pair of gauge-changing guide rails (30), and a pair of second guide rails (40) provided in sequence along interior sides of the pair of support rails (10); an unlocking section (50) is provided between each of the first guide rails (20) and each of the gauge-changing guide rails (30), and an unlocking emergency braking section (51) is provided between each of the unlocking sections (50) and each of the gauge-changing guide rails (30); a locking section (60) is provided between each of the gauge-changing guide rails (30) and each of the second guide rails (40), and a locking emergency braking section (61) is provided between each of the locking sections (60) and each of the second guide rails (40). The ground gauge-changing facility can eliminate the risk on safety in the existing ground gauge-changing facilities and avoid potential accident loss.
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公开(公告)号：EP4032778A1
公开(公告)日：2022-07-27
申请号：EP21849667.7
申请日：2021-03-30
发明人： MA, Lijun , TAO, Guidong , ZHOU, Pingyu , WANG, Xu , QIAO, Qingfeng , ZHANG, Zhenxian , FENG, Yonghua
IPC分类号： B61F7/00
摘要： A wheel mounting bushing (20) for a variable-gauge wheelset. The outer circumferential surface of a first end of the bushing (20) is provided with a wheel mounting seat (24); the outer circumferential surface of a second end of the bushing (20) is provided with an outer spline (22) extending in the axial direction of the bushing; the inner circumferential surface of the second end of the bushing (20) is provided with a first non-self-locking thread (21). The wheel mounting bushing (20) for a variable-gauge wheelset facilitates sliding of the wheel in the axial direction of the axle to achieve gauge change, the connection structure for the axle and the wheel is simple, and the reliability of gauge change is high. Also provided is a variable-gauge wheelset.
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公开(公告)号：EP3831688A1
公开(公告)日：2021-06-09
申请号：EP19907009.5
申请日：2019-10-10
发明人： ZHENG, Jing , WANG, Xu , QIAO, Qingfeng , ZHANG, Feng , ZHAO, Changlong
IPC分类号： B61F17/30
摘要： Disclosed are a lubricating structure for gauge-changing wheelset and a gauge-changing wheelset. The lubricating structure for gauge-changing wheelset comprises: wheels (1), an axle (2), and sliding mechanisms; the wheels are slidably provided at both ends of the axle, and the sliding mechanisms are respectively connected to outer sides of the wheels and are located in axle-box bodies at both ends of the axle; and the wheels are unlocked and locked by the sliding mechanisms. A sealing structure (6) is provided between an inner side of the wheel and the axle, a first cavity (7) is formed between the inner side of the wheel, the axle and the sealing structure, a second cavity (8) is formed between the outer side of the wheel and the sliding mechanism, and a third cavity (9) is formed between the sliding mechanism and the axle-box body. The wheel is provided with first oil injection holes (10) leading to a connection between the wheel and the axle, and the axle-box body is provided with second oil injection holes (11) leading to the sliding mechanism. The lubricating structure of the present application may increase the lubrication of a friction surface, and reduce the wear of the key wear-prone parts, thereby extending the overall service life of the gauge-changing wheelset.
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公开(公告)号：EP3778339A1
公开(公告)日：2021-02-17
申请号：EP18914285.4
申请日：2018-09-27
发明人： QIAO, Qingfeng , ZHOU, Pingyu , WANG, Xu , MA, Lijun , ZHANG, Zhenxian
摘要： A bullet train gauge-changing bogie for a railway vehicle comprises a frame, wherein wheels (10) of the gauge-changing wheelset are mounted with wheel-mounted brake discs (100); each of the side beams (20) or each of the cross beams is mounted with a brake clamp (1) and a mounting seat (2), and the brake clamp (1) is connected with the mounting seat (2) by support pins (3): the support pins (3) are horizontally disposed below the mounting seat (2), and both ends thereof are fixedly connected with the mounting seat (2), one end of the brake clamp (1) is provided with a connecting sleeve; the connecting sleeve is firmly sleeved with damping inner sleeves (4) with elastic damping; the connecting sleeve is locked on the support pins (3) through the damping inner sleeves (4). When the thrust on the connecting sleeve is greater than the damping force between the connecting sleeve and the support pins (3), the connecting sleeve drives the brake clamp (1) to move along the support pins (3).
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