CN210027432U

CN210027432U - Non-power bogie suitable for high-speed motor train unit

Info

Publication number: CN210027432U
Application number: CN201920368353.5U
Authority: CN
Inventors: 赵阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-02-07
Anticipated expiration: 2029-03-22

Abstract

The utility model provides a be fit for high-speed EMUs's non-power bogie. The non-power bogie suitable for the high-speed motor train unit comprises: an axle; one side of each of the two side beams is arranged on each of two sides of the axle; the control device is arranged between one sides of the inner walls of the two side beams; a wheel disposed on a surface of the axle; the height adjusting valve mounting seat is arranged at the bottom of the side beam; a first shock-absorbing device disposed on a surface of both of the side members. The utility model provides a non-power bogie that is fit for high-speed EMUs has and adopts the hollow shaft through the axletree, and its shaft hole angle makes it possess correct atress ratio through calculating, makes it firmer, and difficult fracture under the condition that accords with the strength requirement, reduces the weight of axletree as far as to reduce the dynamic load between wheel and the guide rail, guarantee the quality of traveling.

Description

Non-power bogie suitable for high-speed motor train unit

Technical Field

The utility model relates to a railway equipment technical field especially relates to a non-power bogie that is fit for high-speed EMUs.

Background

The most key ring of the motor train production is the bogie part, the excellent performance of the bogie directly influences the stability and comfort of the motor train in operation, in the past years, China learns advanced skills from four motor train manufacturing companies, namely Ganyu, Ringyi, Fand and Ded respectively, and jointly designs and produces the bogies of CRH1, CRH2, CRH3 and CRH5 high-speed motor train units, so that the bogie meets the construction of high-speed motor train units of railways in China, and in recent years, the high-speed motor train units with ' renaissance ' are independently researched and developed, the railway technology of the people has qualitative leap, and the railway industry of China also enters the ' high-speed era, in order to match the development of the strategy of ' one-by-one-way ', we need to rely on the existing people's intelligence and high-end technological level, the level of locomotive equipment in China is improved by independently innovating the domestic high-speed motor train unit, so that China can smoothly stand in a forest of nationwide nations.

Compared with the common bogie, the bogie of the motor train unit must have the ability of comfortable, stable and fast smooth passing through the curve in the running process, and the running of the train can be safer only by processing the important problems, so that the following problems need to be found out when researching the bogie of the high-speed motor train unit:

(1) when the motor train unit passes through a concave or convex part of a route, very large wheel track impact force is generated, so that the self weight of the bogie needs to be greatly reduced, particularly the unsprung weight needs to be reduced, and the dynamic acting force between wheels and a track is reduced.

(2) In the running process of the high-speed motor train unit, due to relative displacement between parts, noise is generated and transmitted, and therefore a seamless structure or a rubber element is adopted as far as possible to play a role in damping.

(3) The vibration of the vehicle is always existed in the running process, and the higher the speed of the vehicle is, the higher the vibration amplitude is. The selection suspension device needs to be reasonably arranged, and the snake-shaped movement of the motor train unit bogie in the advancing process is effectively inhibited, so that the stability of the motor train unit in high-speed operation is ensured.

(4) According to the factors of the maximum running speed, the signal equipment condition, the line condition and the like of the vehicle, the bogie needs to be provided with a brake device with good performance, the brake force of the bogie is ensured to have allowance, and the vehicle can be safely stopped, so that the vehicle can run safely.

(5) On the premise of reducing the self weight of the bogie, parts with enough strength, proper rigidity and small abrasion are adopted to ensure good application performance of parts of the motor train unit.

(6) When a high-speed motor train unit passes through a curve, sharp lateral pressure is formed, so that accidents such as vehicle body overturning, derailment and the like can be caused if severe friction occurs between wheels and a track, and the high-speed motor train unit has good curve passing performance.

Therefore, it is necessary to provide a non-power bogie suitable for high-speed motor train units to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a non-power bogie that is fit for high-speed EMUs has solved the dynamic load between wheel and the guide rail too big, influences the safe problem that the motor car travel.

For solving the technical problem, the utility model provides a suitable high-speed EMUs's non-power bogie includes: an axle; one side of each of the two side beams is arranged on each of two sides of the axle; the control device is arranged between one sides of the inner walls of the two side beams; a wheel disposed on a surface of the axle; the height adjusting valve mounting seat is arranged at the bottom of the side beam; a first shock-absorbing device provided on surfaces of the two side members; the two second damping devices are respectively arranged on one sides of the two side beams, which are far away from each other; a stabilizer disposed at a bottom of the side beam; and the traction device is arranged at the bottom of the first damping device.

Preferably, the control device comprises a cross beam, two anti-rolling torsion bars are arranged at the bottom of the cross beam, and a braking device is arranged on the cross beam.

Preferably, the axle is a hollow shaft, the side beams and the cross beams are H-shaped frameworks formed by welding steel plates, the middle parts of the side beams are concave fish-bellied U-shaped beams, and the wheels are steel grinding integral wheels.

Preferably, the braking device comprises a brake cylinder, a brake clamp is arranged on the brake cylinder, a brake pad is arranged at the top of the brake clamp, a brake shaft disc is arranged on the surface of the axle, and the brake shaft disc and the brake pad are mutually matched.

Preferably, the first damping device comprises two transverse dampers, a lower center plate is arranged between the two opposite sides of the transverse dampers, and the tops of the two side beams are both provided with secondary air spring devices.

Preferably, the second damping device comprises a damper mounting seat, an anti-snake-shaped damper is arranged on one side of the damper mounting seat, and a pillow beam mounting seat is arranged on one side of the anti-snake-shaped damper.

Preferably, the stabilizing device includes a series of axial suspension devices, the bottom of the side beam is provided with an axle box vertical shock absorber, the bottom of the axle box vertical shock absorber is provided with a positioning rotating wall, one side of the positioning rotating wall is provided with an axle box, the top of the axle box is provided with an axle box spring support, and the axle box spring support is provided with a series of double-coil round springs.

Preferably, the traction device comprises a traction pull rod, the top of the traction pull rod is arranged below the lower center plate, and a tapered roller bearing is arranged on the traction pull rod.

Compared with the prior art, the utility model provides a non-power bogie that is fit for high-speed EMUs has following beneficial effect:

the utility model provides a non-power bogie suitable for high-speed motor train units,

(1) the axle adopts the hollow shaft, the angle of the shaft hole of the axle is calculated to ensure that the axle has correct stress ratio, so that the axle is firmer and not easy to break, and under the condition of meeting the strength requirement, the weight of the axle is reduced as much as possible, so that the dynamic load between the wheels and the guide rail is reduced, and the running quality is ensured.

(2) The side beams and the cross beams adopt the H-shaped welding frame with small dead weight, are easy to manufacture and repair, have very refined structures, have sufficient mechanical property indexes to ensure the quick running requirement of the high-speed motor train unit, and have the characteristics of good mechanical property, light weight, reliability, stability, low repair price and the like, so the side beams and the cross beams are suitable for the motor train unit.

(3) The brake is realized by arranging three brake shaft discs on a single shaft, sufficient brake force is guaranteed, and in addition, the shaft discs are braked relative to the wheel discs, so that the energy of a train can be saved by 60% under the condition of non-braking, the heat dissipation is more facilitated, the excessive heat on the wheels is prevented, the brake shaft discs adopting the shaft discs to brake are replaced and unloaded without other tools, and the brake shaft disc is more convenient, saves money, and is safe and reliable.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a non-powered bogie suitable for high-speed motor train units according to the present invention;

FIG. 2 is a side view of the ensemble shown in FIG. 1;

FIG. 3 is a schematic structural view of a portion of the axle shown in FIG. 1;

FIG. 4 is a schematic structural view of a portion of the wheel shown in FIG. 1;

FIG. 5 is a schematic structural view of a portion of the side sill shown in FIG. 1;

FIG. 6 is a cross-sectional view of section A-A shown in FIG. 5;

fig. 7 is a sectional view of the portion B-B shown in fig. 5.

Reference numbers in the figures: 1. axle, 2, side beams, 3, control device, 31, cross beam, 32, anti-roll torsion bar, 33, brake device, 331, brake cylinder, 332, brake caliper, 333, brake pad, 334, brake disc, 4, wheel, 5, height adjustment valve mount, 6, first shock absorber, 61, lateral shock absorber, 62, lower center disc, 63, secondary air spring device, 7, second shock absorber, 71, shock absorber mount, 72, anti-snake shock absorber, 73, bolster mount, 8, stabilizer, 81, primary axle box suspension, 82, axle box vertical shock absorber, 83, alignment swivel wall, 84, axle box, 85, axle box spring bracket, 86, primary double wrap round spring, 9, draft gear, 91, draft pull rod, 92, tapered roller bearing.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, and fig. 7 in combination, wherein fig. 1 is a schematic structural diagram of a non-power bogie suitable for a high-speed motor train unit according to a preferred embodiment of the present invention; FIG. 2 is a side view of the ensemble shown in FIG. 1; FIG. 3 is a schematic structural view of a portion of the axle shown in FIG. 1; FIG. 4 is a schematic structural view of a portion of the wheel shown in FIG. 1; FIG. 5 is a schematic structural view of a portion of the side sill shown in FIG. 1; FIG. 6 is a cross-sectional view of section A-A shown in FIG. 5; fig. 7 is a sectional view of the portion B-B shown in fig. 5. A non-power bogie suitable for high-speed motor train units comprises: an axle 1; the axle 1 is a hollow shaft, the angle of the shaft hole of the axle 1 is calculated to ensure that the axle has correct stress ratio, so that the axle is firmer and is not easy to break, the weight of the axle 1 is reduced as much as possible under the condition of meeting the strength requirement, so as to reduce the dynamic load between wheels 4 and a guide rail and ensure the running quality, and each axle 1 is provided with two wheels 4 and three brake turntables 334, two side beams 2, one side of each side beam 2 is respectively arranged at two sides of the axle 1; a control device 3, the control device 3 being disposed between one side of the inner walls of the two side members 2; a wheel 4, the wheel 4 being disposed on a surface of the axle 1; the wheels 4 are in interference fit with the axle 1, so that the wheels are prevented from slipping and accidents are prevented when the wheels run at a high speed, and the height adjusting valve mounting seat 5 is arranged at the bottom of the side beam 2; a first damper 6, the first damper 6 being provided on the surfaces of both the side members 2; two second damping devices 7, wherein the two second damping devices 7 are respectively arranged on the sides, far away from each other, of the two side beams 2; a stabilizer 8, the stabilizer 8 being provided at the bottom of the side member 2; and the traction device 9 is arranged at the bottom of the first damping device 6, and the traction device 9 is arranged at the bottom of the first damping device 6.

The control device 3 comprises a cross beam 31, two anti-rolling torsion bars 32 are arranged at the bottom of the cross beam 31, two braking devices 33 are arranged on the cross beam 31, and the two braking devices 33 are respectively arranged on the two cross beams 31.

The axle 1 is a hollow shaft, the side beams 2 and the cross beam 31 are H-shaped frameworks welded by steel plates, the middle part of the side beams 2 is a concave fish-bellied U-shaped beam, the wheel 4 is a steel-grinding integral wheel, the U-shaped beams are covered by the upper, lower, left and right steel plates and are assembled into a box-type sealing structure through a welding process, a sealing baffle is generated inside the U-shaped beam, so that the side beams 2 form a cavity, the cavity can be used as another part for assisting the secondary air spring 63 to increase and store transmitted air, the H-shaped welding frame has small dead weight and is easy to manufacture and repair, the structure of the welding frame is refined, the welding frame has sufficient mechanical performance indexes to ensure the fast driving requirement of the high-speed motor train unit, the wheels have the worst working condition among all structural parts of the bogie of the high-speed motor train unit, and the wheels can not only, but also can directly contact with the rail, and in addition, the steel rail joint is received, and mechanical damage can be caused by the stress and thermal stress generated by the friction between the steel rail joint and a basic braking device, and the rolled steel integral wheel has the characteristics of good mechanical property, light weight, reliability, stability, low repair price and the like, and is suitable for the use of the motor train unit.

Brake equipment 33 includes brake cylinder 331, be provided with brake clamp 332 on the brake cylinder 331, the top of brake clamp 332 is provided with brake pad 333, the surface of axletree 1 is provided with braking reel 334, braking reel 334 with brake pad 333 mutual adaptation sets up the three reel of unipolar and realizes the braking, guarantees enough big brake force, and the reel braking is for the rim plate braking in addition, and it is under the condition of non-braking, can let the energy saving 60% of train, also more does benefit to the heat dissipation, prevents that the heat is too much on the wheel 4, and the braking reel 334 that adopts the reel braking is traded and is unloaded no other instruments, and is more convenient, practices thrift the fund, safe and reliable.

The first shock absorption device 6 comprises two transverse shock absorbers 61, a lower center plate 62 is arranged between the opposite sides of the two transverse shock absorbers 61, and secondary air spring devices 63 are arranged at the tops of the two side beams 2.

The second damping device 7 includes a damper mount 71, an anti-snake-shaped damper 72 is provided on one side of the damper mount 71, and a bolster mount 73 is provided on one side of the anti-snake-shaped damper 72.

The stabilizing device 8 includes a series of axial suspension devices 81, an axle box vertical shock absorber 82 is disposed at the bottom of the side beam 2, a positioning rotating wall 83 is disposed at the bottom of the axle box vertical shock absorber 82, an axle box 84 is disposed at one side of the positioning rotating wall 83, an axle box spring support 85 is disposed at the top of the axle box 84, and a series of double-coil round springs 86 are disposed on the axle box spring support 85.

The traction device 9 comprises a traction pull rod 91, the top of the traction pull rod 91 is arranged below the lower center plate 62, a tapered roller bearing 92 is arranged on the traction pull rod 91, various components are combined with each other, unsprung mass is reduced, noise and vibration generated during driving are reduced, and a driving journey which is comfortable for passengers is guaranteed.

The utility model provides a be fit for high-speed EMUs's non-power bogie's theory of operation as follows:

when in use, the steel plates are welded into an H-shaped framework, the components of the H-shaped framework comprise a cross beam 31 and a side beam 2, a concave fish-bellied U-shaped beam is used in the middle part of the side beam 2 and is covered by the upper, lower, left and right steel plates to be assembled into a box-type sealing structure through a welding process, a sealing baffle is generated inside the U-shaped beam, so that a cavity is formed inside the side beam and can be used as another part for adding and storing transferred air of an auxiliary secondary air spring device 63, the H-shaped welding frame has small dead weight, is easy to manufacture and repair, has a refined structure, has sufficient mechanical performance indexes to ensure the quick driving requirement of a high-speed motor train unit, selects a rolled steel integral wheel, has the characteristics of good mechanical performance, light weight, reliability and stability, low repair cost and the like, is suitable for the motor train unit, and an axle is formed by hot processing, after forging, should carry out thermal stress elimination technology, then mechanical fine processing, the axletree axle adopts the steel, in axletree 1 preparation stroke, adopt hollow axletree 1, under the condition that accords with the intensity requirement, reduce the weight of axletree 1 as far as, in order to reduce the dynamic load between wheel 4 and the guide rail, guarantee the quality of traveling, set up the three reel of unipolar and implement the braking, guarantee enough big brake force, in addition the reel braking is for the rim plate braking, it is under the non-braked condition, can let the energy saving 60% of train, also more do benefit to the heat dissipation, prevent that the heat is too much on the wheel 4, the brake disc of reel braking is traded and is unloaded and need not use other instruments, and is more convenient, and the fund is saved, safety and.

1. the axle 1 is a hollow shaft, the shaft hole angle of the axle is calculated to enable the axle to have correct stress ratio, so that the axle is firmer and not easy to break, and under the condition of meeting the strength requirement, the weight of the axle 1 is reduced as much as possible, so that the dynamic load between the wheels 4 and the guide rail is reduced, and the running quality is ensured.

2. The side beam 2 and the cross beam 31 adopt an H-shaped welding frame which has small dead weight and is easy to manufacture and repair, the welding frame has a very refined structure, the welding frame has sufficient mechanical property indexes to ensure the quick driving requirement of the high-speed motor train unit, and the wheel 4 has the characteristics of good mechanical property, light weight, reliability, stability, low repair price and the like, and is suitable for the motor train unit.

3. Through being provided with three braking reel 334 on the unipolar and realizing the braking, guarantee enough big brake force, reel braking is for the rim plate braking in addition, and it is under the circumstances of non-braking, can let the energy saving 60% of train, also more does benefit to the heat dissipation, prevents that the heat is too much on the wheel 4, and the braking reel 334 that adopts reel braking is traded and is unloaded and need not use other instruments, and is more convenient, practices thrift fund, safe and reliable.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A non-power bogie suitable for high-speed motor train units is characterized by comprising:

an axle;

one side of each of the two side beams is arranged on each of two sides of the axle;

the control device is arranged between one sides of the inner walls of the two side beams;

a wheel disposed on a surface of the axle;

the height adjusting valve mounting seat is arranged at the bottom of the side beam;

a first shock-absorbing device provided on surfaces of the two side members;

the two second damping devices are respectively arranged on one sides of the two side beams, which are far away from each other;

a stabilizer disposed at a bottom of the side beam;

and the traction device is arranged at the bottom of the first damping device.

2. The non-power bogie suitable for high-speed motor train units according to claim 1, wherein the control device comprises a cross beam, two anti-rolling torsion bars are arranged at the bottom of the cross beam, and a braking device is arranged on the cross beam.

3. The non-power bogie suitable for high-speed motor train units according to claim 2, wherein the axle is a hollow shaft, the side beams and the cross beams are H-shaped frames formed by welding steel plates, the middle parts of the side beams are concave fish-bellied U-shaped beams, and the wheels are steel-rolled integral wheels.

4. The non-power bogie suitable for high-speed motor train units as claimed in claim 2, wherein the brake device comprises a brake cylinder, a brake clamp is arranged on the brake cylinder, a brake pad is arranged on the top of the brake clamp, a brake shaft disc is arranged on the surface of the axle, and the brake shaft disc and the brake pad are mutually matched.

5. The non-power bogie suitable for high-speed motor train units according to claim 1, wherein the first damping device comprises two transverse dampers, a lower center plate is arranged between opposite sides of the two transverse dampers, and a secondary air spring device is arranged at the top of each of the two side beams.

6. The non-power bogie suitable for high-speed motor train units according to claim 1, wherein the second damping device comprises a damper mounting seat, one side of the damper mounting seat is provided with an anti-snake-shaped damper, and one side of the anti-snake-shaped damper is provided with a sleeper mounting seat.

7. The non-power bogie suitable for high-speed motor train units according to claim 1, wherein the stabilizing device comprises a series of axial suspension devices, the bottom of the side beam is provided with an axle box vertical shock absorber, the bottom of the axle box vertical shock absorber is provided with a positioning rotating wall, one side of the positioning rotating wall is provided with an axle box, the top of the axle box is provided with an axle box spring support, and the axle box spring support is provided with a series of double-coil round springs.

8. The non-power bogie suitable for high-speed motor train units as recited in claim 5, wherein the traction device comprises a traction pull rod, the top of the traction pull rod is arranged below the lower center plate, and a tapered roller bearing is arranged on the traction pull rod.