CN211592559U - Wheel-rail train suitable for large-gradient rail transit - Google Patents
Wheel-rail train suitable for large-gradient rail transit Download PDFInfo
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- CN211592559U CN211592559U CN202020015473.XU CN202020015473U CN211592559U CN 211592559 U CN211592559 U CN 211592559U CN 202020015473 U CN202020015473 U CN 202020015473U CN 211592559 U CN211592559 U CN 211592559U
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Abstract
The utility model discloses a wheel-rail train suitable for large-gradient rail transportation, which comprises a carriage, wherein the bottom of the carriage is provided with a front bogie and a rear bogie, and the wheel-rail train also comprises a linear motor and a second brake clamp which are arranged at the bottom of the carriage; the front bogie and the rear bogie are respectively provided with a linear motor and a first brake clamp, the first brake clamp realizes braking on wheels by clamping a brake disc, and the second brake clamp realizes clamping on a track by hydraulic braking; the linear motor is matched with the induction plate on the track. The utility model provides a current wheel rail formula rail transit vehicle easy slipping, the poor problem of brake performance when the heavy grade rail transit.
Description
Technical Field
The utility model relates to a rail transit technical field, concretely relates to wheel rail train suitable for heavy grade rail transit transports.
Background
With the wide application of rail transit in high-altitude areas or scenic spots in mountainous areas, the number of large-gradient lines is increasing, and the gradient of the lines is further increased, so that slipping driving situations can occur between train wheels and rails. The existing mountain touring railways abroad adopt a rack rail type rail transit vehicle, and domestic rack rail type vehicles are mainly used for coal mine transportation. The existing rack rail type rail transit vehicle drives a gear plate by a motor of the vehicle, and the gear plate is meshed with a rack of a rail to draw the vehicle to run. When the rack-and-rail type rail transit vehicle runs on a large-slope line, a gear plate of the vehicle and a rack of a track are in a meshed state, so that the condition of vehicle slipping cannot occur, although the rack-and-rail type vehicle has strong climbing capability, the running noise of the vehicle is high, the speed of the vehicle is low and is generally less than 30km/h, the instability of vehicle running is influenced, and the comfort of passengers is reduced. In view of this, in order to avoid the trouble of passenger transfer, it is necessary to design a rail vehicle which is suitable for inter-city rail transit operation and can meet the operation requirement of the tourist route in the mountain area on the large slope.
The existing wheel-rail type rail transit vehicle drives wheels to run on rails by means of a motor in a vehicle bogie, the rail vehicle of the standard type is only suitable for running on a rail line with the gradient not higher than 50 per thousand, and if the gradient of the line is further increased, the wheels and the rails can slip to cause traffic accidents. The braking mode of the wheel-rail type rail transit vehicle is that a brake disc coaxial with a wheel is clamped by a brake clamp in a bogie for braking, and the vehicle is braked by only one set of brake clamp on a heavy-gradient rail line, so that the wheel can skid on the rail, and the vehicle cannot be braked.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wheel rail train suitable for heavy grade rail transit transports solves current wheel rail formula rail transit vehicle and easily skids, the poor problem of brake performance when heavy grade rail transit moves.
The utility model discloses a following technical scheme realizes:
a wheel-rail train suitable for large-gradient rail transportation comprises a carriage, wherein the bottom of the carriage is provided with a front bogie and a rear bogie, and the wheel-rail train further comprises a linear motor and a second brake clamp which are arranged at the bottom of the carriage;
the front bogie and the rear bogie are respectively provided with a linear motor and a first brake clamp, the first brake clamp realizes braking on wheels by clamping a brake disc, and the second brake clamp realizes clamping on a track by hydraulic braking;
the linear motor is matched with the induction plate on the track.
Big gradient track specifically indicates the track that the slope is higher than 50 thousandths, first braking clamp realizes being current braking mode to the braking of bogie wheel through pressing from both sides tight brake disc.
The utility model discloses the linear electric motor 6 that sets up in the linear electric motor of carriage bottom, bogie or back bogie is as traction vehicle's power supply, and the wheel on the train bogie only plays the effect of bearing. By adopting the linear motor traction technology, the traction force of the train is not influenced by the attachment condition between the wheel rails, and the train can obtain excellent power performance and climbing capability. In addition, when the train runs on a large slope track surface, the braking performance of the vehicle is further enhanced. Compared with one set of brake system of the conventional wheel-rail vehicle, the wheel-rail vehicle of the utility model is provided with three sets of brake systems, the first set of brake system is used for braking by clamping a brake disc coaxial with the wheel through a first brake clamp, which is consistent with the brake mode of the conventional wheel-rail vehicle; the second set of braking system utilizes the linear motor for driving the vehicle to perform reverse braking; the third set of brake system is used for clamping and braking the line track through the second brake clamp. When the train runs on a straight or gentle slope rail surface, the first set and the second set of system modes can be adopted for braking the train; when the train operates at a certain speed on a heavy-gradient rail surface, the first set and the second set of braking systems act simultaneously to brake the train; and (3) braking or parking the train when the train runs at a low speed on a large-slope rail surface, and simultaneously braking by adopting a first set of braking system and a third set of braking system to brake or park the train.
To sum up, the wheel rail train can make the vehicle realize the vehicle that moves on the heavy grade line through all setting up linear electric motor as vehicle power supply traction vehicle in vehicle bottom and bogie inside, and the train is gone at straight or gentle slope rail surface at a high speed, has set up two sets of braking system and has carried out the braking to the vehicle. The condition that the vehicle wheels and the track skid is avoided, the service lives of the wheels and the track can be effectively protected, the braking distance of the vehicle can be effectively shortened, the vehicle can be braked more safely when the vehicle is braked emergently, a train runs at a high speed on a gentle slope or a heavy slope track surface, three sets of braking systems are arranged to brake the vehicle, the condition that the vehicle wheels and the track skid is avoided, the service lives of the wheels and the track are protected, the braking distance of the vehicle is shortened, when the vehicle is braked to the parking condition by low-speed running, the first braking clamp keeps braking force, the second braking clamp also brakes simultaneously, and the condition that the vehicle can not be parked due to the fact that the vehicle wheels and the track skid is avoided. Therefore, the utility model provides a current wheel rail formula rail transit vehicle easy slipping, the poor problem of brake performance when the heavy grade rail transit.
Further, a linear motor provided at the bottom of the vehicle compartment is provided between the bogie and the rear bogie.
Furthermore, the carriage comprises a front carriage, a middle carriage and a rear carriage, and the bottoms of the front carriage, the middle carriage and the rear carriage are respectively provided with a front bogie, a rear bogie, a linear motor and a second brake clamp.
Furthermore, the bottom of the front carriage, the middle carriage and the rear carriage is at least provided with 2 linear motors.
Further, the bogie or the rear bogie comprises a bogie body, a linear motor is arranged in the bogie body, 2 pairs of wheels are symmetrically arranged on the bogie body and used for walking on a rail, a brake disc coaxial with the wheels is arranged in the bogie body, and a first brake clamp used for clamping the brake disc is arranged in the bogie body.
Furthermore, the second brake clamp comprises two brake pads symmetrically arranged on two sides of the rail, the second brake clamp adopts a hydraulic oil cylinder to provide clamping force, and the second brake clamp is arranged below the bottom structure of the vehicle body.
Further, an air gap is formed between the linear motor and the induction plate.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses a set up linear electric motor as vehicle power supply traction vehicle inside bottom the train and bogie. Compared with the traditional wheel-rail vehicle, the vehicle has larger traction power and can be suitable for rail transit transportation of a large-gradient line.
2. The utility model discloses linear electric motor formula wheel rail train can satisfy intercity rail transit operating speed requirement at straight or gentle slope rail surface operation, and at the operation of heavy grade rail surface, the train has stronger climbing ability, can satisfy heavy grade road line operation, has avoided intercity and mountain area to need the trouble of taking a ride.
3. The utility model discloses a linear electric motor drive vehicle does not have gear drive's meshing vibration and noise. Secondly, the wheels are not driving wheels, and the wheels have no vibration and noise generated by the creeping and rolling of the power wheels on the track.
4. Wheel rail train is provided with three sets of braking modes, compares traditional wheel rail vehicle, and the condition of having avoided vehicle wheel to skid with the track takes place, makes wheel and orbital wearing and tearing reduce, can effectively prolong wheel and orbital life, reduces maintenance, replacement cost. The arrangement of the reverse braking mode of the linear motor avoids the sliding friction braking between the wheels and the rails of the traditional wheel-rail vehicle, can effectively shorten the braking distance of the vehicle, and ensures that the vehicle can run more safely during emergency braking.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a wheel-rail train;
FIG. 2 is a schematic view of the bogie engaged with a rail;
figure 3 is a schematic view of the second brake caliper in engagement with the rail.
Reference numbers and corresponding part names in the drawings:
1-front carriage, 2-middle carriage, 3-rear carriage, 4-front bogie, 5-rear bogie, 6-linear motor, 7-first brake clamp, 8-second brake clamp, 9-brake disc, 10-wheel, 11-induction plate, 12-rail surface and 13-air gap.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1:
as shown in fig. 1-3, a wheel-track train suitable for transportation of heavy-grade rail transit comprises carriages, wherein the carriages comprise a front carriage 1, a middle carriage 2 and a rear carriage 3, and the bottoms of the front carriage 1, the middle carriage 2 and the rear carriage 3 are respectively provided with a front bogie 4, a rear bogie 5, a linear motor 6 and a second brake clamp 8;
the linear motor 6 arranged at the bottom of the carriage is arranged between the front bogie 4 and the rear bogie 5, the bottoms of the front carriage 1, the middle carriage 2 and the rear carriage 3 are respectively provided with 3 linear motors 6, the front bogie 4 and the rear bogie 5 are respectively provided with a linear motor 6 and a first brake clamp 7, the first brake clamp 7 realizes braking on a wheel 10 by clamping a brake disc 9, and the second brake clamp 8 realizes clamping on a track by adopting hydraulic braking;
the linear motor 6 is matched with an induction plate 11 on a track, and an air gap 13 is formed between the linear motor 6 and the induction plate 11, namely a certain distance is formed between the bottom of the linear motor 6 and the induction plate 11;
the front bogie 4 or the rear bogie 5 comprises a bogie body, a linear motor 6 is arranged in the bogie body, 2 pairs of wheels 10 are symmetrically arranged on the bogie body, the bottoms of the wheels 10 are tangent to a rail surface 12, the wheels 10 are used for walking on a rail, a brake disc 9 coaxial with the wheels 10 is arranged in the bogie body, and a first brake clamp 7 used for clamping the brake disc 9 is arranged in the bogie body;
the second brake clamp 8 comprises two brake pads symmetrically arranged on two sides of the rail, the second brake clamp 8 adopts a hydraulic oil cylinder to provide clamping force, and the second brake clamp 8 is arranged below the bottom structure of the vehicle body.
In the present embodiment, the linear motor 6 disposed in the bottom of the car, the front bogie 4, or the rear bogie 5 serves as a power source of the traction vehicle, and the wheels on the train bogie only serve as a load bearing. By adopting the linear motor traction technology, the traction force of the train is not influenced by the attachment condition between the wheel rails, and the train can obtain excellent power performance and climbing capability. In addition, when the train runs on a large slope track surface, the braking performance of the vehicle is further enhanced.
This embodiment enables three types of braking systems, in particular:
when the train runs on a straight or gentle slope rail surface, a front bogie 4 and a rear bogie 5 below the front carriage 1, the middle carriage 2 and the rear carriage 3 are used as power type bogies, and a linear motor 6 inside the front bogie 4 and the rear bogie 5 is used as a traction power source. When the vehicle is in high-speed running and needs braking, the linear motor 6 is provided with reverse current, the linear motor provides reverse traction force as vehicle braking force to brake the vehicle, the vehicle is braked from high-speed running to low-speed running, when the vehicle is in low-speed running, the braking of the linear motor is cut off, the braking mode is changed into braking by the first braking clamp 7 in the bogie body, and the first braking clamp 7 brakes the wheels 10 in the bogie body by clamping the brake disc 9. When a train runs on a straight or gentle slope rail surface at a high speed, if the train is braked by only relying on the first brake caliper, the wheels 10 of the bogie skid with the rail, so that the service lives of the wheels 10 and the rail are influenced to a certain extent, and the braking distance of the train is also lengthened. By providing reverse current to the linear motor 6 to brake the vehicle and then braking the first brake caliper 7 inside the bogie, the service life of the wheels 10 and the rail can be effectively protected, and the braking distance of the vehicle can be shortened.
When a train runs on a large-slope rail surface, a front bogie 4 and a rear bogie 5 below the front carriage 1, the middle carriage 2 and the rear carriage 3 are used as power type bogies, and at the moment, the linear motors 6 at the bottoms of the front carriage 1, the middle carriage 2 and the rear carriage 3 also provide traction force. When the vehicle needs to be braked on a large-slope rail surface, in order to avoid the situation that the wheels 10 of the vehicle bogie skid when braking with the rail, the following measures are taken to realize braking: when the vehicle is braked during high-speed running on a large-slope rail surface, firstly, reverse current is provided for the linear motor 6 in the vehicle bogie body and at the bottom of a carriage, the linear motor provides reverse traction force as vehicle braking force to brake the vehicle, when the vehicle is braked from high-speed running to low-speed running, the braking of the linear motor 6 is cut off and converted into braking of a first braking clamp 7 in the bogie body, and the first braking clamp 7 clamps a brake disc 9 to brake wheels 10 in the bogie body. When the vehicle is braked from low-speed running to a vehicle parking situation, the first brake caliper 7 keeps the braking force, and the second brake caliper 8 also brakes at the same time. After the vehicle is parked on a large slope rail surface, the first brake clamp 7 and the second brake clamp simultaneously keep braking to park the vehicle. When the vehicle runs on a large slope rail surface at a high speed, the linear motor 6 is firstly used for providing reverse current to brake the vehicle, and then the first brake clamp 7 in the bogie body is used for braking, so that the service life of the wheels 10 and the rail is effectively protected, and the braking distance of the vehicle is shortened. When the vehicle is parked and braked on the large-slope rail surface, the component force of the gravity of the vehicle along the rail direction is large, if the vehicle is braked by only relying on the first braking clamp 7, the situation that the wheels and the rail of the vehicle slip possibly causes that the vehicle cannot be parked completely, at the moment, the second braking clamp 8 is used for clamping the side surface of the rail to brake, the situation that the parked wheels and the rail slip can be effectively avoided, and the vehicle can be parked on the large-slope rail surface safely. The large ramp rail surface braking and parking of the vehicle are carried out by the three systems, so that the conditions of vehicle sliding and skidding when the vehicle runs on the large ramp are ensured, and the running safety of the vehicle is provided.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A wheel-rail train suitable for large-gradient rail transportation comprises a carriage, wherein the bottom of the carriage is provided with a front bogie (4) and a rear bogie (5), and is characterized by further comprising a linear motor (6) and a second brake clamp (8), wherein the linear motor and the second brake clamp are arranged at the bottom of the carriage;
the front bogie (4) and the rear bogie (5) are internally provided with linear motors (6) and first brake clamps (7), the first brake clamps (7) brake wheels (10) by clamping brake discs (9), and the second brake clamps (8) clamp tracks by hydraulic braking;
the linear motor (6) is matched with the induction plate (11) on the track.
2. A wheel-track train suitable for large-gradient rail transit according to claim 1, characterized in that the linear motor (6) arranged at the bottom of the carriage is arranged between the front bogie (4) and the rear bogie (5).
3. The wheel-track train suitable for large-gradient rail transportation according to claim 1, wherein the carriages comprise a front carriage (1), a middle carriage (2) and a rear carriage (3), and the bottoms of the front carriage (1), the middle carriage (2) and the rear carriage (3) are provided with a front bogie (4), a rear bogie (5), a linear motor (6) and a second brake clamp (8).
4. A wheel-rail train suitable for large-gradient rail transportation according to claim 3, characterized in that the bottoms of the front carriage (1), the middle carriage (2) and the rear carriage (3) are provided with at least 2 linear motors (6).
5. The wheel-track train suitable for transportation on a large-gradient rail according to claim 1, wherein the front bogie (4) or the rear bogie (5) comprises a bogie body, a linear motor (6) is arranged in the bogie body, 2 pairs of wheels (10) are symmetrically arranged on the bogie body, the wheels (10) are used for walking on the rail, a brake disc (9) coaxial with the wheels (10) is arranged in the bogie body, and a first brake clamp (7) used for clamping the brake disc (9) is arranged in the bogie body.
6. The wheel-track train suitable for transportation on a large-gradient rail according to claim 1, wherein the second brake clamp (8) comprises two brake pads symmetrically arranged on two sides of the rail, the second brake clamp (8) adopts a hydraulic oil cylinder to provide clamping force, and the second brake clamp (8) is arranged below a vehicle body bottom structure.
7. A wheel-track train suitable for large-gradient rail transit according to any one of claims 1-6, characterized in that an air gap (13) is formed between the linear motor (6) and the induction plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020015473.XU CN211592559U (en) | 2020-01-03 | 2020-01-03 | Wheel-rail train suitable for large-gradient rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020015473.XU CN211592559U (en) | 2020-01-03 | 2020-01-03 | Wheel-rail train suitable for large-gradient rail transit |
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| Publication Number | Publication Date |
|---|---|
| CN211592559U true CN211592559U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020015473.XU Active CN211592559U (en) | 2020-01-03 | 2020-01-03 | Wheel-rail train suitable for large-gradient rail transit |
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|---|---|
| CN (1) | CN211592559U (en) |
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2020
- 2020-01-03 CN CN202020015473.XU patent/CN211592559U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221024 Address after: No.4 Huoju Road, hi tech Development Zone, Baoji City, Shaanxi Province 721000 Patentee after: CHINA RAILWAY BAOJI BRIDGE GROUP Co.,Ltd. Address before: 610000 China Railway Rail Transit high tech Industrial Park, NO.666, jinfenghuang Avenue, Jinniu District, Chengdu, Sichuan Province Patentee before: CHINA RAILWAY MAGLEV SCIENCE & TECHNOLOGY (CHENGDU) Co.,Ltd. |
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| TR01 | Transfer of patent right |