CN110877530A - Brake energy recovery device for railway locomotive - Google Patents
Brake energy recovery device for railway locomotive Download PDFInfo
- Publication number
- CN110877530A CN110877530A CN201911276123.7A CN201911276123A CN110877530A CN 110877530 A CN110877530 A CN 110877530A CN 201911276123 A CN201911276123 A CN 201911276123A CN 110877530 A CN110877530 A CN 110877530A
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- Prior art keywords
- oil
- brake
- generator
- locomotive
- piston
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a railway locomotive braking energy recovery device, which comprises a wheel frame, wherein rotatable wheel shafts are symmetrically arranged on the wheel frame from left to right, wheels are symmetrically arranged on the wheel shafts from top to bottom, the wheels can roll on a rail and further can drive a locomotive to slide, brake discs are symmetrically arranged on the wheel shafts from top to bottom, and heat dissipation grooves are arranged in the brake discs and can accelerate the heat dissipation of the brake discs.
Description
Technical Field
The invention relates to the field of railway locomotive braking, in particular to a railway locomotive braking energy recovery device.
Background
The most common braking modes adopted by the current railway rolling stock are brake shoe braking and disc type braking, the wheels are stopped rotating through the friction between a braking device and the wheels or brake discs during braking, in the process, the braking device needs to convert huge kinetic energy into heat energy to be dissipated into the atmosphere, so that a large amount of kinetic energy is lost in vain, and in the era of energy shortage, energy conservation is at a glance, so a braking energy recovery device needs to be developed, the kinetic energy during the braking of the rolling stock can be recovered, and further the kinetic energy of the rolling stock can be utilized.
Disclosure of Invention
The technical problem is as follows: when the train is braked, the wheel stops rotating through the friction between the braking device and the wheel or the brake disc, and a large amount of kinetic energy is lost in the process.
The railway locomotive brake energy recovery device comprises a wheel frame, rotatable wheel shafts are symmetrically arranged on the left side and the right side of the wheel frame, wheels are symmetrically arranged on the wheel shafts up and down, the wheels can roll on rails and further can drive a locomotive to slide, brake discs are symmetrically arranged on the wheel shafts up and down, heat dissipation grooves are formed in the brake discs and can accelerate heat dissipation of the brake discs, a first bevel gear is fixedly arranged on the wheel shafts, shock absorber bases are symmetrically arranged at the upper end and the lower end of the wheel frame, a locomotive shock absorption device is arranged in the shock absorber bases and can play a shock absorption role, a generator cavity is formed in the wheel frame, a generator is fixedly arranged in the generator cavity, and a transmission shaft is dynamically connected to the generator, the electric locomotive is characterized in that second bevel gears are symmetrically and fixedly arranged at the left end and the right end of the transmission shaft and are in meshed connection with the first bevel gears, so that kinetic energy of a locomotive can be converted into electric energy by the generator, first electric wires are arranged at the upper end and the lower end of the generator in a symmetrical electric connection mode, one end of the generator, which is far away from the first electric wires, is electrically connected with a battery, the battery can store the electric energy, one end of the battery, which is far away from the generator, is electrically connected with a locomotive brake device, and the locomotive brake device can brake a brake disc, so that.
Wherein, locomotive damping device includes that the array is located three bumper shock absorber piston cylinder of bumper shock absorber base upper end, be equipped with main oil pocket in the bumper shock absorber piston cylinder, main oil intracavity is equipped with gliding batch oil tank from top to bottom, the batch oil tank lower extreme with the wall links firmly on the bumper shock absorber base, the batch oil tank upper end has set firmly first sealing washer, first sealing washer can prevent the hydraulic oil seepage in the main oil pocket, the cover is equipped with the bumper shock absorber spring on the bumper shock absorber piston cylinder outer wall, the bumper shock absorber spring can play absorbing effect, bumper shock absorber piston cylinder roof has set firmly the bumper shock absorber piston, bumper shock absorber piston upper end links firmly with the automobile body.
Beneficially, an auxiliary oil cavity is communicated with the right end of the main oil cavity, a rotatable baffle is symmetrically arranged on the right wall of the main oil cavity, when the oil storage tank slides upwards, the baffle at the upper end is opened, so that hydraulic oil flows into the auxiliary oil cavity from the main oil cavity, and when the oil storage tank slides downwards, the baffle at the lower end is opened, so that hydraulic oil flows into the main oil cavity from the auxiliary oil cavity.
The locomotive brake device comprises an oil pump fixedly arranged in the wheel frame, one end, far away from the generator, of the oil pump is communicated with an oil storage tank, brake oil is stored in the oil storage tank, one end, close to the generator, of the oil pump is communicated with an oil feeding pipe, four fixing rods are arranged on the wheel frame in a rectangular array mode, and one end, far away from the generator, of each fixing rod is fixedly provided with a brake caliper.
Beneficially, the brake caliper is internally provided with caliper pistons which are vertically symmetrical, branch oil pipes are arranged in the caliper pistons, the branch oil pipes are close to one ends of the generators and communicated with the oil feeding pipe, the branch oil pipes are far away from one ends of the oil feeding pipe and communicated with piston cavities, brake pistons capable of sliding up and down are arranged in the piston cavities, one ends of the brake pistons far away from the brake disc are fixedly provided with second sealing rings, the second sealing rings can prevent brake oil from leaking, two groups of reset springs are fixedly arranged in the brake caliper in a vertically symmetrical mode, the lower ends of the reset springs are fixedly provided with brake pads, and the brake pistons can push the brake pads to slide towards one ends close to the brake disc, so that the brake disc can be clamped to brake a locomotive.
Beneficially, oil return pipelines are symmetrically arranged on the oil feeding pipe in a bilateral mode, one end, close to the generator, of each oil return pipeline is communicated with the oil storage tank, an oil return valve is fixedly arranged in each oil return pipeline, and brake oil in the oil feeding pipe can flow back into the oil storage tank through the oil return valves and the oil return pipelines.
The invention has the beneficial effects that: the invention has simple structure, convenient maintenance and convenient use, can automatically convert the kinetic energy of the locomotive into electric energy and store the electric energy through the built-in energy storage device, and simultaneously, the stored electric energy can be used for the work of a train braking device, thereby greatly improving the utilization rate of energy and reducing the waste of the energy.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure "A-A" of FIG. 1;
FIG. 3 is a schematic view of the structure "B-B" of FIG. 1;
FIG. 4 is a schematic view of the structure "C" of FIG. 1;
fig. 5 is a schematic view of the structure "D" in fig. 3.
Detailed Description
The invention will now be described in detail with reference to fig. 1-5, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a railway locomotive brake energy recovery device, which is mainly applied to the field of railway locomotive brakes, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to a railway locomotive brake energy recovery device, which comprises a wheel frame 11, wherein rotatable wheel shafts 18 are symmetrically arranged on the left and the right of the wheel frame 11, wheels 19 are symmetrically arranged on the upper and the lower of the wheel shafts 18, the wheels 19 can roll on rails and further can drive a locomotive to slide, brake discs 21 are symmetrically arranged on the upper and the lower of the wheel shafts 18, heat dissipation grooves 22 are arranged in the brake discs 21, the heat dissipation grooves 22 can accelerate the heat dissipation of the brake discs 21, a first bevel gear 24 is fixedly arranged on the wheel shafts 18, shock absorber bases 12 are symmetrically arranged at the upper and the lower ends of the wheel frame 11, a locomotive shock absorbing device 101 is arranged in the shock absorber bases 12, the locomotive shock absorbing device 101 can play a shock absorbing role, a generator cavity 35 is arranged in the wheel frame 11, a generator 34 is fixedly arranged in the generator cavity 35, and a transmission shaft 25 is dynamically connected to the generator 34, the left end and the right end of the transmission shaft 25 are symmetrically and fixedly provided with second bevel gears 23, the second bevel gears 23 are in meshed connection with the first bevel gears 24, further the generator 34 can convert kinetic energy of a locomotive into electric energy, the upper end and the lower end of the generator 34 are symmetrically and electrically connected with first electric wires 33, one ends, far away from the generator 34, of the first electric wires 33 are electrically connected with batteries 32, the batteries 32 can store the electric energy, one ends, far away from the generator 34, of the batteries 32 are electrically connected with a locomotive brake device 201, and the locomotive brake device 201 can brake the brake disc 21, so that the speed of the train is reduced.
According to an embodiment, the locomotive damping device 101 is described in detail below, the locomotive damping device 101 includes three damper piston cylinders 15 arranged at the upper end of the damper base 12 in an array manner, a main oil chamber 16 is arranged in the damper piston cylinder 15, an oil storage tank 17 capable of sliding up and down is arranged in the main oil chamber 16, the lower end of the oil storage tank 17 is fixedly connected with the upper wall surface of the damper base 12, a first sealing ring 41 is fixedly arranged at the upper end of the oil storage tank 17, the first sealing ring 41 can prevent hydraulic oil in the main oil chamber 16 from leaking, a damper spring 14 is sleeved on the outer wall of the damper piston cylinder 15, the damper spring 14 can play a damping role, a damper piston 13 is fixedly arranged on the top wall of the damper piston cylinder 15, and the upper end of the damper piston 13 is fixedly connected with a vehicle body.
Advantageously, an auxiliary oil chamber 51 is arranged at the right end of the main oil chamber 16 in a communicating manner, a rotatable baffle plate 52 is symmetrically arranged on the right wall of the main oil chamber 16, and when the oil storage tank 17 slides upwards, the baffle plate 52 at the upper end is opened, so that hydraulic oil flows into the auxiliary oil chamber 51 from the main oil chamber 16, and when the oil storage tank 17 slides downwards, the baffle plate 52 at the lower end is opened, so that hydraulic oil flows into the main oil chamber 16 from the auxiliary oil chamber 51.
According to an embodiment, the locomotive brake device 201 is described in detail below, the locomotive brake device 201 includes an oil pump 29 fixedly disposed in the wheel frame 11, an end of the oil pump 29 away from the generator 34 is communicatively provided with an oil storage tank 17, the oil storage tank 17 stores brake oil, an end of the oil pump 29 close to the generator 34 is communicatively provided with an oil feeding pipe 27, four fixing rods 26 are disposed in the wheel frame 11 in a rectangular array, and an end of the fixing rod 26 away from the generator 34 is fixedly provided with a brake caliper 36.
Beneficially, the caliper piston 43 is symmetrically arranged in the brake caliper 36 from top to bottom, a branch oil pipe 42 is arranged in the caliper piston 43, one end of the branch oil pipe 42, which is close to the generator 34, is communicated with the oil feeding pipe 27, one end of the branch oil pipe 42, which is far away from the oil feeding pipe 27, is communicated with a piston cavity 48, a brake piston 45 capable of sliding up and down is arranged in the piston cavity 48, one end of the brake piston 45, which is far away from the brake disc 21, is fixedly provided with a second sealing ring 44, the second sealing ring 44 can prevent brake oil from leaking, two sets of return springs 47 are symmetrically arranged in the brake caliper 36 from top to bottom, the lower end of the return spring 47 is fixedly provided with a brake pad 46, and the brake piston 45 can push the brake pad 46 to slide towards one end close to the brake disc 21, so as to clamp.
Beneficially, the oil feeding pipe 27 is symmetrically provided with oil return pipelines 55 from left to right, one end of the oil return pipeline 55 close to the generator 34 is communicated with the oil storage tank 17, an oil return valve 54 is fixedly arranged in the oil return pipeline 55, and brake oil in the oil feeding pipe 27 can flow back into the oil storage tank 17 through the oil return valve 54 and the oil return pipeline 55.
The following detailed description of the steps of the braking energy recovery device for a railway locomotive will be provided with reference to fig. 1 to 5: in the initial state, the generator 34 does not operate, the oil pump 29 is not started, the return spring 47 is in a contracted state, and the brake pad 46 is separated from the brake disc 21;
when the locomotive starts to decelerate, the wheel shaft 18 drives the transmission shaft 25 to rotate through the first bevel gear 24 and the second bevel gear 23, the transmission shaft 25 drives the generator 34 to operate, the generator 34 starts to generate electric energy and charges the battery 32 through the first electric wire 33, meanwhile, the wheel shaft 18 starts to decelerate, when the locomotive needs to increase the braking force, the battery 32 starts the oil pump 29 through the second electric wire 31, the oil pump 29 pumps the brake oil in the oil storage tank 17 into the branch oil pipe 42 through the oil feeding pipe 27, and then the brake piston 45 is pushed to slide towards one end close to the brake disc 21, and the brake piston 45 pushes the brake disc 46 to clamp the brake disc 21, so as to brake the wheels 19.
The invention has the beneficial effects that: the invention has simple structure, convenient maintenance and convenient use, can automatically convert the kinetic energy of the locomotive into electric energy and store the electric energy through the built-in energy storage device, and simultaneously, the stored electric energy can be used for the work of a train braking device, thereby greatly improving the utilization rate of energy and reducing the waste of the energy.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (6)
1. A brake energy recovery device of a railway locomotive comprises a wheel frame, wherein rotatable wheel shafts are symmetrically arranged on the wheel frame in the left-right direction, wheels are symmetrically arranged on the wheel shafts in the up-down direction, the wheels can roll on a rail and further can drive the locomotive to slide, brake discs are symmetrically arranged on the wheel shafts in the up-down direction, heat dissipation grooves are formed in the brake discs, and the heat dissipation grooves can accelerate the heat dissipation of the brake discs;
a first bevel gear is fixedly arranged on the wheel shaft, shock absorber bases are symmetrically arranged at the upper end and the lower end of the wheel frame, a locomotive shock absorption device is arranged in the shock absorber bases and can play a shock absorption role, a generator cavity is arranged in the wheel frame, a generator is fixedly arranged in the generator cavity, a transmission shaft is arranged on the generator in a power connection mode, second bevel gears are symmetrically and fixedly arranged at the left end and the right end of the transmission shaft and are in meshed connection with the first bevel gear, and therefore the generator can convert kinetic energy of the locomotive into electric energy;
the electric connection of generator upper and lower both ends symmetry is equipped with first electric wire, first electric wire is kept away from generator one end electric connection is equipped with the battery, the battery can store the electric energy, the battery is kept away from generator one end electric connection is equipped with locomotive brake equipment, locomotive brake equipment can be right the brake disc brakes, and then makes the train slow down.
2. A railroad locomotive brake energy recovery device as defined in claim 1, wherein: the locomotive damping device comprises an array, wherein a three damper piston cylinder at the upper end of a damper base is arranged, a main oil cavity is formed in the damper piston cylinder, an oil storage tank capable of sliding up and down is arranged in the main oil cavity, the lower end of the oil storage tank is fixedly connected with the upper wall surface of the damper base, a first sealing ring is fixedly arranged at the upper end of the oil storage tank, the first sealing ring can prevent hydraulic oil in the main oil cavity from leaking, a damper spring is sleeved on the outer wall of the damper piston cylinder and can play a damping role, a damper piston is fixedly arranged on the top wall of the damper piston cylinder, and the upper end of the damper piston is fixedly connected with a vehicle body.
3. A railroad locomotive brake energy recovery device as claimed in claim 2, wherein: main oil pocket right-hand member intercommunication is equipped with vice oil pocket, the symmetry is equipped with rotatable baffle on the main oil pocket right wall, and then works as when the batch oil tank upwards slides, be located the upper end the baffle is opened for hydraulic oil is followed main oil intracavity flows into in the vice oil pocket, works as when the batch oil tank slides down, be located the lower extreme the baffle is opened, makes hydraulic oil follow flow in the vice oil pocket main oil intracavity.
4. A railroad locomotive brake energy recovery device as defined in claim 1, wherein: the locomotive brake device comprises an oil pump fixedly arranged in the wheel frame, one end, far away from the generator, of the oil pump is communicated with an oil storage tank, brake oil is stored in the oil storage tank, one end, close to the generator, of the oil pump is communicated with an oil feeding pipe, four fixing rods are arranged on the wheel frame in a rectangular array mode, and one end, far away from the generator, of each fixing rod is fixedly provided with a brake caliper.
5. A railroad locomotive brake energy recovery device as set forth in claim 4, wherein: the interior longitudinal symmetry of brake caliper is equipped with the calliper piston, be equipped with branch oil pipe in the calliper piston, branch oil pipe is close to generator one end with the oil pipe intercommunication that oils, branch oil pipe keeps away from oil pipe one end intercommunication that oils is equipped with the piston chamber, the piston intracavity is equipped with gliding brake piston from top to bottom, brake piston keeps away from brake disc one end has set firmly the second sealing washer, the second sealing washer can prevent that brake oil from leaking, the interior longitudinal symmetry of brake calliper has set firmly two sets of reset spring, the reset spring lower extreme has set firmly the brake block, brake piston can promote the brake block is to being close to brake disc one end slides, and then can press from both sides tightly the brake disc brakes the locomotive.
6. A railroad locomotive brake energy recovery device as set forth in claim 5, wherein: go up the oil pipe on the bilateral symmetry be equipped with back oil pipe, back oil pipe is close to generator one end with the batch oil tank intercommunication, set firmly in the back oil pipe and return oil valve, and then the brake oil accessible in the oil pipe return oil valve with return oil pipe flows back in the batch oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911276123.7A CN110877530A (en) | 2019-12-12 | 2019-12-12 | Brake energy recovery device for railway locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911276123.7A CN110877530A (en) | 2019-12-12 | 2019-12-12 | Brake energy recovery device for railway locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110877530A true CN110877530A (en) | 2020-03-13 |
Family
ID=69731689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911276123.7A Withdrawn CN110877530A (en) | 2019-12-12 | 2019-12-12 | Brake energy recovery device for railway locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110877530A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112298261A (en) * | 2020-11-03 | 2021-02-02 | 温州职业技术学院 | Safe and reliable rail transit carriage interfacing apparatus |
| CN112849170A (en) * | 2021-02-19 | 2021-05-28 | 安徽万航轨道交通装备有限公司 | Oil-electricity hybrid driving device for locomotive |
| CN114572010A (en) * | 2022-05-05 | 2022-06-03 | 深圳弘富源科技有限公司 | Energy-saving buffer for new energy automobile |
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| DE102008060640A1 (en) * | 2008-12-05 | 2010-06-17 | Zf Friedrichshafen Ag | Piston cylinder aggregates e.g. monotube vibration damper, arrangement for pivot mounting of rail-mounted vehicle, has piston cylinder aggregates supporting superstructures such that pressure-free exchange of damping medium takes place |
| JP2011185389A (en) * | 2010-03-10 | 2011-09-22 | Kyb Co Ltd | Damping valve |
| US20130167752A1 (en) * | 2009-05-01 | 2013-07-04 | Gibson V. Barbee | Battery-Powered All-Electric and/or Hybrid Locomotive and Related Locomotive and Train Configurations |
| JP2013137042A (en) * | 2011-12-28 | 2013-07-11 | Hitachi Automotive Systems Ltd | Fluid pressure shock absorber |
| CN204493508U (en) * | 2015-03-27 | 2015-07-22 | 江苏理工学院 | Fixed caliper disc type electric automobile brake assembly |
| CN105216821A (en) * | 2015-09-24 | 2016-01-06 | 南车南京浦镇车辆有限公司 | A kind of passenger car bogie |
| CN110406549A (en) * | 2019-09-04 | 2019-11-05 | 宝鸡中车时代工程机械有限公司 | A kind of hybrid power railcar drawn using diesel engine and power accumulator |
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2019
- 2019-12-12 CN CN201911276123.7A patent/CN110877530A/en not_active Withdrawn
Patent Citations (7)
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|---|---|---|---|---|
| DE102008060640A1 (en) * | 2008-12-05 | 2010-06-17 | Zf Friedrichshafen Ag | Piston cylinder aggregates e.g. monotube vibration damper, arrangement for pivot mounting of rail-mounted vehicle, has piston cylinder aggregates supporting superstructures such that pressure-free exchange of damping medium takes place |
| US20130167752A1 (en) * | 2009-05-01 | 2013-07-04 | Gibson V. Barbee | Battery-Powered All-Electric and/or Hybrid Locomotive and Related Locomotive and Train Configurations |
| JP2011185389A (en) * | 2010-03-10 | 2011-09-22 | Kyb Co Ltd | Damping valve |
| JP2013137042A (en) * | 2011-12-28 | 2013-07-11 | Hitachi Automotive Systems Ltd | Fluid pressure shock absorber |
| CN204493508U (en) * | 2015-03-27 | 2015-07-22 | 江苏理工学院 | Fixed caliper disc type electric automobile brake assembly |
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| CN110406549A (en) * | 2019-09-04 | 2019-11-05 | 宝鸡中车时代工程机械有限公司 | A kind of hybrid power railcar drawn using diesel engine and power accumulator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112298261A (en) * | 2020-11-03 | 2021-02-02 | 温州职业技术学院 | Safe and reliable rail transit carriage interfacing apparatus |
| CN112298261B (en) * | 2020-11-03 | 2021-10-01 | 温州职业技术学院 | Safe and reliable rail transit carriage interfacing apparatus |
| CN112849170A (en) * | 2021-02-19 | 2021-05-28 | 安徽万航轨道交通装备有限公司 | Oil-electricity hybrid driving device for locomotive |
| CN112849170B (en) * | 2021-02-19 | 2024-01-05 | 安徽万航轨道交通装备有限公司 | Oil-electricity hybrid driving device for locomotive head of railway locomotive |
| CN114572010A (en) * | 2022-05-05 | 2022-06-03 | 深圳弘富源科技有限公司 | Energy-saving buffer for new energy automobile |
| CN114572010B (en) * | 2022-05-05 | 2022-07-05 | 深圳弘富源科技有限公司 | Energy-saving buffer for new energy automobile |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200313 |