CN202574267U - Rail vehicle hydraulic buffering vehicle stopper - Google Patents
Rail vehicle hydraulic buffering vehicle stopper Download PDFInfo
- Publication number
- CN202574267U CN202574267U CN 201220216899 CN201220216899U CN202574267U CN 202574267 U CN202574267 U CN 202574267U CN 201220216899 CN201220216899 CN 201220216899 CN 201220216899 U CN201220216899 U CN 201220216899U CN 202574267 U CN202574267 U CN 202574267U
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- CN
- China
- Prior art keywords
- vehicle
- support arm
- oil cylinder
- hydraulic buffering
- plunger
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- Expired - Fee Related
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Abstract
The utility model discloses a rail vehicle hydraulic buffering vehicle stopper, and relates to the vehicle stopper for rails. The rail vehicle hydraulic buffering vehicle stopper comprises a support arm and a brake, the brake structurally comprises a brake shell, a friction block is arranged in the brake shell, the friction block is made into a beveled shape, a pressurizing connector is connected with the friction block through an inclined plane, the support arm is connected with the brake through the pressurizing connector, and a hydraulic buffering device which can absorb kinetic energy of a vehicle is arranged on the support arm. The hydraulic buffering device which can absorb the kinetic energy of the vehicle structurally comprises a plunger and an oil cylinder, the plunger is connected with the oil cylinder, an inner spring is arranged in the oil cylinder, a return spring is sleeved outside the inner spring, a throttle unloading valve and a direct-acting overflow valve are arranged between the oil cylinder and an oil tank, an elastic contactor is arranged at the front end of the plunger, and a guide lever is arranged between the support arm and the elastic contactor. Since the structure is utilized in the rail vehicle hydraulic buffering vehicle stopper, pressure and effective friction length of the friction block can be greatly increased, and the braking distance can be shortened. Due to the fact that the hydraulic buffering device which can absorb the kinetic energy of the vehicle is additionally arranged in the rail vehicle hydraulic buffering vehicle stopper, anti-slip braking ability of vehicle stopper is greatly improved.
Description
Technical field
The utility model relates to a kind of vehicle that is used to prevent to stop in orbit slips away, and the vehicle of slipping away is implemented buffer-braking, is installed on the safety apparatus on the track.
Background technology
Stop guideway vehicle in orbit, anti-slide measure is generally all arranged, such as anti-slip metal shoe, the anti-sleeper that slips, and the brake equipment of vehicle itself etc.; But because natural cause, and human element, like strong wind, the vibrations of adjacent line moving vehicle, standing vehicle once took place to slip away automatically the phenomenon that causes a serious accident for factors such as responsible accidents in circuit people from ramp.For preventing that standing vehicle from slipping away voluntarily, cause heavy losses, guarantee traffic safety, install the mechanical friction type car bumper in orbit, be used for stopping the vehicle of slipping away.There is function singleness in this mechanical friction type drg, and braking potential is little, can't make the problem of its stopping-down to the heavy duty vehicle of slipping away at a high speed; Its principle of work is the cast iron friction shoe that leans in the drg, slides through adding to be pressed on the rail, with rail friction generates resistance; In high-voltage high-speed slided, friction shoe heated up rapidly, and serious consumption; Friction drag descends until disappearance, loses braking potential, has potential safety hazard.
Summary of the invention
The utility model renovates with mechanism on principle to the mechanical friction type car bumper, provides a kind of and can adapt to heavy duty, has the novel car bumper of at a high speed anti-slide ability.
The purpose of the utility model realizes through following technical proposals: the guideway vehicle hydraulic buffer stopper; The support arm that comprises the both sides that are installed in track; In the bottom of support arm, drg is installed in the track top, and it is characterized in that: described brake structural is: in brake shell, place friction shoe; Described friction shoe bevel shape, pressurization unitor and friction shoe are through the inclined-plane coupling; Support arm is connected with drg through the pressurization unitor; Described support arm is provided with hydraulic cushion and absorbs the vehicle energy device; Its structure is: plunger is connected with oil cylinder; In oil cylinder, be provided with inner spring, the outer suit retracing spring of inner spring is provided with throttling unloader valve and straight moving by pass valve between oil cylinder and fuel tank; The front end of said plunger is provided with spring type contactor, between support arm and spring type contactor, is provided with pilot bar.
The beneficial effect of the utility model: the utility model adopts said structure, when the spring type contactor of the Vehicular impact plunger front end of slipping away, with plunger when the oil cylinder right side advances; In-oil cylinder hydraulic oil; Under the promotion of plunger, get into fuel tank through straight moving by pass valve, at the oil-feed and the oil extraction two ends of straight moving by pass valve; Produce the pressure drop of 21Mpa, plunger has been produced the horizontal resistance of 646.212KN.The forced stroke of plunger cylinder is 0.6M, and braking potential is 387727.2Nm, can make 4 heavy 83 tons, the lorry of speed 5km/h blocks and stops.The utility model compared with prior art, with the friction shoe bevel shape in the drg, pressurization unitor and friction shoe be through the inclined-plane coupling, increases the pressure of friction shoe and effective friction length, the shortening stopping distance.Along with the raising of drg braking potential, car bumper body load has also strengthened, and body originally is the requirement of the incompatible new car bumper of Bolt Connection splicing construction, so make body into integral solder, has further increased the load capacity of body.In car bumper, increase hydraulic cushion and absorb the vehicle energy device, improved the anti-slide braking potential of car bumper greatly.
Description of drawings
Fig. 1 is a guideway vehicle hydraulic buffer stopper front view.
Fig. 2 is a guideway vehicle hydraulic buffer stopper left view.
Fig. 3 is a throttling unloader valve section of structure.
Fig. 4 is the assembly drowing of drg.
The specific embodiment
The guideway vehicle hydraulic buffer stopper comprises the support arm 7 of the both sides that are installed in track, in the bottom of support arm 7; Drg 9 is fixed on the track 13 through bolt 9; Described drg 9 structures are as shown in Figure 4: be in brake shell 14, to place powder metallurgy friction block 15, and described powder metallurgy friction block 15 bevel shapes, pressurization unitor 16 is coupled through the inclined-plane with powder metallurgy friction block 15; Support arm 7 is connected with drg 9 through pressurization unitor 16; On support arm 7, be provided with hydraulic cushion and absorb the vehicle energy device, its structure is: plunger 1 is connected with oil cylinder 6, in oil cylinder 6, is provided with inner spring 20; Inner spring 20 outer suit retracing springs 12 are provided with throttling unloader valve 3 and straight moving by pass valve 5 between oil cylinder 6 and fuel tank 4; Throttling unloader valve 3 structures are as shown in Figure 3, are made up of valve body 19, throttling valve core 18, bonded washer 17, are provided with spring type contactor 11 at the front end of plunger 1, between support arm 7 and spring type contactor 11, are provided with pilot bar 10.
According to application need, thickening support arm 7 steel plates, and, add the weldering stiffening plate at the node of stress concentration, whole car bumper integral solder has improved the impact strength of fuselage, and for realizing heavy duty, the high speed car bumper is laid a solid foundation.
To the deficiency of prior art, drg 9 structures are changed into as shown in Figure 4, its principle is to slip away vehicle when promoting car bumper and moving; Pressurization unitor 16 is coupled through the inclined-plane with powder metallurgy friction block 15, moves forward synchronously, promotes vehicle the thrust of car bumper; Resolve into pressure and level thrust forward, put on the powder metallurgy friction block 15, produce friction drag with rail perpendicular to the power of rail perpendicular to rail; Stop vehicle to advance, play the anti-slide effect of braking.After the advantage of this brake structural is the friction shoe abrasion,, keep constant force square and permanent friction drag, prolong effective braking distance through compensate for wear gap, inclined-plane.
On car bumper, having increased hydraulic cushion and absorbed the vehicle energy device, because the working condition of car bumper is passive absorption kinetic energy, is not power output element; And be one-stroke, big flow will tolerate very big impact strength; So select for use the plunger cylinder as the buffer-braking element, hydraulic efficiency pressure system is by plunger cylinder, external straight moving by pass valve; Fuel tank, the throttling unloader valve, oil pipe is formed.
During Vehicular impact hydraulic cushion vehicle plunger, plunger fltting speed in oil cylinder is fast because slip away, and the plunger cross section is big, so the oil extraction flow of oil cylinder is big; Cause the moment hydraulic system pressure to increase suddenly, its pressure possibly cause oil cylinder and hydraulic pipe to break considerably beyond rated designs pressure; Destroy hydraulic work system, make hydraulic buffer system come out of action ability, therefore between oil cylinder and fuel tank; Added the adjustable throttling unloader valve 3 of flow, the hydraulic efficiency impact high pressure oil moment produces enters fuel tank through throttling unloader valve 3; Because the damping hole area of throttling unloader valve just releases the superpressure part through detailed calculated, does not influence the hydraulic efficiency pressure system normal operating pressure.
Directly moving by pass valve 5 is set between oil cylinder 6 and fuel tank 4, and the hydraulic oil that oil cylinder 6 is discharged enters fuel tank 4 through it, when hydraulic oil passes through directly to move by pass valve 5, produces pressure drop at the two ends of valve, and the hydraulic oil heating is transformed into thermal energy consumption with kinetic energy and falls, and makes the car retardation parking.
Because oil cylinder 6 discharge capacities are big, pressure is high, so require action fast to straight moving by pass valve 5, inertia is little, so select the adjustable straight moving by pass valve of big flow; Easy to adjust for pressure, directly moving by pass valve 5 adopts the discrete component tubular type to connect, and external installation is according to different operating mode technical requirementss; The pressure control scope of straight moving by pass valve 5 is 0-21Mpa, and the braking work of hydraulic buffer system is 0-387727.2Nm, can be according to different car types, for example: motor train unit; Day bus, lorry, subway, light rail; Different places such as industrial and mineral specialty vehicle, adjustment by pass valve pressure is selected suitable braking work, satisfies the anti-requirement of slipping of car brakeing.
Claims (1)
1. guideway vehicle hydraulic buffer stopper; The support arm that comprises the both sides that are installed in track; In the bottom of support arm, drg is installed in the track top, and it is characterized in that: described brake structural is: in brake shell, place friction shoe; Described friction shoe bevel shape, pressurization unitor and friction shoe are through the inclined-plane coupling; Support arm is connected with drg through the pressurization unitor; Described support arm is provided with hydraulic cushion and absorbs the vehicle energy device; Its structure is: plunger is connected with oil cylinder; In oil cylinder, be provided with inner spring, the outer suit retracing spring of inner spring is provided with throttling unloader valve and straight moving by pass valve between oil cylinder and fuel tank; The front end of said plunger is provided with spring type contactor, between support arm and spring type contactor, is provided with pilot bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216899 CN202574267U (en) | 2012-05-15 | 2012-05-15 | Rail vehicle hydraulic buffering vehicle stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220216899 CN202574267U (en) | 2012-05-15 | 2012-05-15 | Rail vehicle hydraulic buffering vehicle stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202574267U true CN202574267U (en) | 2012-12-05 |
Family
ID=47243711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220216899 Expired - Fee Related CN202574267U (en) | 2012-05-15 | 2012-05-15 | Rail vehicle hydraulic buffering vehicle stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202574267U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253285A (en) * | 2013-05-28 | 2013-08-21 | 杨恩久 | General type hydraulic buffering car stop |
| CN107686049A (en) * | 2017-08-24 | 2018-02-13 | 芜湖市长江起重设备制造有限公司 | A kind of bridge crane stroke damps limit safety device |
| CN110040153A (en) * | 2019-04-25 | 2019-07-23 | 大连交通大学 | Passive type hydraulic stop |
-
2012
- 2012-05-15 CN CN 201220216899 patent/CN202574267U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253285A (en) * | 2013-05-28 | 2013-08-21 | 杨恩久 | General type hydraulic buffering car stop |
| CN103253285B (en) * | 2013-05-28 | 2016-03-09 | 杨恩久 | Universal hydraulic buffer stopper |
| CN107686049A (en) * | 2017-08-24 | 2018-02-13 | 芜湖市长江起重设备制造有限公司 | A kind of bridge crane stroke damps limit safety device |
| CN107686049B (en) * | 2017-08-24 | 2019-07-16 | 佛山市恒裕工程技术有限公司 | A kind of bridge crane stroke damping limit safety device |
| CN110040153A (en) * | 2019-04-25 | 2019-07-23 | 大连交通大学 | Passive type hydraulic stop |
| CN110040153B (en) * | 2019-04-25 | 2020-11-13 | 大连交通大学 | Passive hydraulic car stopper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20150515 |
|
| EXPY | Termination of patent right or utility model |