An emergency stop trolley for train tracks

Abstract

The present invention relates to the field of transportation facilities, and is specifically designed as an emergency stopping trolley for train tracks, comprising: a trolley frame body; a counterweight device, which is arranged on a first side portion of the trolley frame body; a wheel brake device, which is arranged on the first side portion of the trolley frame body and is adjacent to the counterweight device; an anti-derailment device, which is arranged on the first side portion of the trolley frame body and is adjacent to the wheel brake device; an energy absorption device, which is arranged on a second side portion of the trolley frame body; and the first side portion and the second side portion are perpendicular to each other.

Description

Technical Field

[0001] The invention relates to the field of traffic facilities, and is specifically designed to be an emergency stop trolley for train tracks. Background Art

[0002] With the development of medium and large cities, urban or intercity rail transit has become the main choice for most people as an efficient and high-speed means of transportation.

[0003] At present, China is at a blank stage in terms of emergency stopping devices for train tracks. Emergency stopping mainly relies on the vehicle's own emergency braking device, or adopts traditional fixed buffer impact devices for emergency stopping. Due to their respective limitations, these methods cannot effectively solve the problem of emergency stopping of trains in the event of brake failure. Summary of the invention

[0004] The purpose of the present invention is to provide an emergency stop trolley for train tracks, aiming to solve the deficiencies of the prior art and to quickly and effectively stop a train with brake failure safely to avoid causing subsequent serious accidents.

[0005] The present invention provides an emergency stop trolley for a train track, comprising:

[0006] The trolley frame body;

[0007] A counterweight device is arranged on the first side portion of the trolley frame body;

[0008] A wheel brake device is disposed on a first side portion of the trolley frame body and is adjacent to the counterweight device;

[0009] An anti-derailment device is arranged on a first side portion of the trolley frame body and is adjacent to the wheel brake device;

[0010] An energy absorbing device is arranged on the second side of the trolley frame body;

[0011] The first side portion and the second side portion are perpendicular to each other.

[0012] Preferably, in the above-mentioned emergency stop trolley for train tracks, the counterweight device comprises:

[0013] Counterweight box;

[0014] A counterweight frame, used for carrying the counterweight box;

[0015] The slide rail is arranged at the bottom of the counterweight frame.

[0016] Preferably, in the above-mentioned emergency stop trolley for train tracks, the wheel braking device comprises:

[0017] a pair of brake baffles;

[0018] A brake transverse axis, disposed between the pair of brake baffles and fixing the brake baffles;

[0019] A wheel bearing, mounted on the brake transverse shaft;

[0020] The brake block is arranged at the bottom of the brake baffle.

[0021] Preferably, in the above-mentioned emergency stop trolley for train tracks, the anti-derailment device comprises:

[0022] A column, matched with a pair of said brake baffles;

[0023] A supporting device is arranged between the upright column and the trolley frame body;

[0024] The clamping block is arranged at the bottom of the column and matches the brake block.

[0025] Preferably, in the above-mentioned emergency stop trolley for train tracks, the energy absorption device comprises:

[0026] beam;

[0027] An energy absorbing box is arranged between the cross beam and the trolley frame body.

[0028] Preferably, the above-mentioned emergency stop trolley for train tracks, wherein:

[0029] The crossbeam is a quadrilateral aluminum profile structure;

[0030] The energy absorption box is a hexagonal aluminum profile structure.

[0031] Preferably, in the above-mentioned emergency stop trolley for train tracks, the crossbeam is made of 6082 aluminum profile material, and the energy absorption box is made of 6060 aluminum profile material.

[0032] Preferably, in the above-mentioned emergency stop trolley for train tracks, the trolley frame body is formed by welding I-beams.

[0033] Preferably, in the above-mentioned emergency stop trolley for train tracks, the slide rail comprises a U-shaped slide rail and a brake pad matching the U-shaped slide rail.

[0034] Compared with the prior art, the advantages of the present invention are:

[0035] The present invention provides an emergency stop trolley for train tracks with a simple structure and strong braking force. It can be arranged on an emergency escape track. Through the combination of the emergency stop trolley and the emergency escape track, a train with brake failure can be urgently stopped to prevent subsequent serious accidents caused thereby. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The structure of an emergency stop trolley for a train track provided by an embodiment of the present invention is a schematic diagram;

[0037] Figure 2 The structure of an emergency stop trolley for a train track provided by an embodiment of the present invention is a schematic diagram;

[0038] Figure 3 The structure of an emergency stop trolley for a train track provided by an embodiment of the present invention is a schematic diagram;

[0039] Figure 4 A schematic cross-sectional view of an installation of an emergency stop trolley for a train track provided by an embodiment of the present invention;

[0040] Figure 5 A schematic cross-sectional view of an installation of an emergency stop trolley for a train track provided by an embodiment of the present invention;

[0041] Figure 6 A schematic diagram of energy conversion during use of an emergency stop trolley for train tracks provided by an embodiment of the present invention;

[0042] Figure 7 A schematic diagram of train deceleration during use of an emergency stop trolley for train tracks provided by an embodiment of the present invention;

[0043] Figure 8 A schematic diagram of train movement during use of an emergency stop trolley for train tracks provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] like Figures 1 to 8 As shown, the present invention provides an emergency stop trolley for train tracks, which includes:

[0046] The trolley frame body 1 is formed by welding I-beams;

[0047] A counterweight device 2 is arranged on a first side portion of the trolley frame body;

[0048] A wheel brake device 3 is arranged on a first side portion of the trolley frame body and is adjacent to the counterweight device;

[0049] An anti-derailment device 4 is arranged on a first side portion of the trolley frame body and is adjacent to the wheel brake device;

[0050] An energy absorbing device 5 is arranged on the second side of the trolley frame body;

[0051] The first side portion and the second side portion are perpendicular to each other.

[0052] As a further preferred embodiment, in the above-mentioned emergency stop trolley for train tracks, the counterweight device 2 comprises:

[0053] The counterweight box 21 is 4% to 8% of the total weight of the train. The configuration box can be formed by one counterweight box or two counterweight boxes. It is sufficient to make the weight of the counterweight box reach 4% to 8% of the total weight of the train.

[0054] The counterweight frame 22 is used to carry the counterweight box 21; the counterweight frame 22 matches the trolley frame body 1, and the counterweight frame can be placed at the bottom of the trolley frame body, and the matching box is placed in the counterweight frame, and the counterweight box is fixed by the counterweight frame.

[0055] The slide rail is arranged at the bottom of the counterweight frame. The slide rail includes a U-shaped slide rail 231 and a brake pad 232 matched with the U-shaped slide rail 231. Figure 4 As shown, during use, the brake pad 232 is placed on the train track, and the brake pad 232 is in frictional contact with the train track.

[0056] As a further preferred embodiment, in the above-mentioned emergency stop trolley for train tracks, the wheel brake device 3 comprises:

[0057] a pair of brake baffles 31;

[0058] The brake transverse axis 32 is disposed between the pair of brake baffles 32 and fixes the brake baffles 31; the length of the brake transverse axis 32 matches the distance between the two tracks of the train;

[0059] A wheel bearing 33 is mounted on the brake horizontal shaft 32;

[0060] The brake block 34 is arranged at the bottom of the brake baffle 31. During use, the brake block 34 is placed on the track.

[0061] As a further preferred embodiment, the above-mentioned emergency stop trolley for train tracks, wherein the anti-derailment device 4 comprises:

[0062] A column 41, matching a pair of the brake baffles 31;

[0063] A supporting device 42 is provided between the column 41 and the trolley frame body 1;

[0064] The clamping block 43 is disposed at the bottom of the column 41 and matches the brake block 34. Figure 5 As shown, during use, the tightening block 43 is clamped on the track.

[0065] As a further preferred embodiment, in the above-mentioned emergency stop trolley for train tracks, the energy absorption device 5 comprises:

[0066] The crossbeam 51; further, the crossbeam 51 is a quadrilateral aluminum profile structure; the crossbeam 51 is made of 6082 aluminum profile material,

[0067] The energy absorption box 52 is arranged between the cross beam and the trolley frame body. The energy absorption box 52 is a hexagonal aluminum profile structure and is made of 6060 aluminum profile material.

[0068] The working principle of this embodiment is: when the train brakes fail and hit the emergency stop trolley, the train first contacts the energy absorbing device, and the train applies thrust (kinetic energy) to the energy absorbing device. At this time, the energy absorbing device collapses, and a small part of the kinetic energy is consumed by the elastic potential energy of the energy absorbing box (equivalent to absorbing a small part of the kinetic energy of the train); when the kinetic energy of the train overcomes the elastic potential energy of the energy absorbing box, the train transfers the kinetic energy to the trolley frame body, the counterweight device, the wheel brake device, and the anti-derail device through the energy absorbing device. After the kinetic energy overcomes the gravitational potential energy formed by the trolley frame body, the counterweight device, the wheel brake device, and the anti-derail device, the train forces the emergency stop trolley to move in the direction of the train's advance, because The counterweight device is far away from the train, and the driving kinetic energy received by the counterweight device at this time is relatively small, while the kinetic energy received by the energy absorption device, the trolley frame body, the wheel braking device and the anti-derail device close to the train is relatively large. Because the anti-derail device is locked with the track, the emergency stop trolley cannot move forward in the horizontal direction, and the emergency stop trolley releases deformation along the Z-axis direction. The X-axial thrust provided by the train rotates along the wheel bearing to the Z-direction pressure and is applied to the counterweight device. At this time, the counterweight device is subjected to gravity and pressure at the same time, and the friction between the slide rail of the counterweight device and the track increases, then the kinetic energy applied by the train is converted into the internal energy of the emergency stop trolley, and the internal energy and the kinetic energy of the train offset each other. Figure 6 As shown, the speed of the train with brake failure is gradually reduced, thereby achieving the effect of emergency stop.

[0069] Let's take a specific application method. Take urban rail transit as an example. The train consists of 6 carriages, each carriage weighs 30 tons. The mass of an emergency stop trolley used for the train track is 8 to 15 tons. The train is defined to hit the emergency stop trolley with an initial speed of 50 km / h. The analysis results are as follows: Figure 7 As shown in the train deceleration curve, the emergency stop trolley can provide a deceleration of about 1.5g. Figure 8 As shown, the train speed shows a gradually and steadily decreasing trend according to the speed curve, and the effective braking distance can be controlled at around 18 to 25 meters.

[0070] According to the above scheme of the present invention, an emergency escape track is set at the train section station or terminal area and connected to the main track. An emergency stop trolley is set on the emergency escape track at a distance from the main track. When the brakes of a moving train fail or other accidents occur, the driver contacts the dispatching center to guide the train to the nearest emergency escape track for emergency stop.

[0071] The specific embodiments described above are only used to illustrate the technical solutions of the present invention, but not to limit them. Those skilled in the art to which the present invention belongs may modify the specific embodiments described, or replace some of the technical features therein with equivalents, but these modifications and replacements will not deviate from the spirit of the technical solutions of the embodiments of the present invention or exceed the scope defined by the attached claims.

Claims

1. An emergency stop trolley for train tracks, characterized in that: include: The trolley frame body; A counterweight device is arranged on the first side of the trolley frame body; the counterweight device comprises: a counterweight box, the weight of which is 4% to 8% of the overall weight of the train; a counterweight frame, which is used to carry the counterweight box; and a slide rail, which is arranged at the bottom of the counterweight frame; The wheel brake device is arranged on the first side of the platform frame body and is adjacent to the counterweight device; the wheel brake device comprises: a pair of brake baffles; a brake transverse shaft, which is arranged between the pair of brake baffles and fixes the brake baffles; a wheel bearing, which is sleeved on the brake transverse shaft; and a brake block, which is arranged at the bottom of the brake baffles; The anti-derail device is arranged on the first side of the trolley frame body and is adjacent to the wheel brake device; the anti-derail device comprises: a column, matching a pair of the brake baffles; a supporting device, arranged between the column and the trolley frame body; a clamping block, arranged at the bottom of the column and matching the brake block; An energy absorbing device is arranged on the second side of the trolley frame body; The first side portion and the second side portion are perpendicular to each other.

2. The emergency stop trolley for train tracks according to claim 1, characterized in that: The energy absorbing device comprises: beam; An energy absorbing box is arranged between the cross beam and the trolley frame body.

3. The emergency stop trolley for train tracks according to claim 2, characterized in that: in, The crossbeam is a quadrilateral aluminum profile structure, and the energy absorption box is a hexagonal aluminum profile structure.

4. The emergency stop trolley for train tracks according to claim 3, characterized in that: The crossbeam is made of 6082 aluminum profile material, and the energy absorption box is made of 6060 aluminum profile material.

5. The emergency stop trolley for train tracks according to claim 1, characterized in that: The trolley frame body is formed by welding I-beams.

6. The emergency stop trolley for train tracks according to claim 1, characterized in that: The slide rail comprises a U-shaped slide rail and a brake pad matched with the U-shaped slide rail.

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