CN104527713A - Railway wagon locking type sealed brake cylinder - Google Patents
Railway wagon locking type sealed brake cylinder Download PDFInfo
- Publication number
- CN104527713A CN104527713A CN201410749482.0A CN201410749482A CN104527713A CN 104527713 A CN104527713 A CN 104527713A CN 201410749482 A CN201410749482 A CN 201410749482A CN 104527713 A CN104527713 A CN 104527713A
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- Prior art keywords
- eccentric wheel
- cylinder
- spring
- piston
- cylinder body
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
Abstract
The invention discloses a railway wagon locking type sealed brake cylinder which comprises a cylinder body and a front cover assembly. A piston and a piston rod are arranged in the cylinder body, a seal ring and a lubrication sleeve are arranged on the outer wall of the piston, a relief spring is arranged between the bottom of the piston and the front cover assembly, and the piston rod extends out of the front cover assembly. The front cover assembly integrates with a piston rod locking device and consists of a thin film air cylinder, a screw eccentric wheel, a manual pull rod, a manual lever, a reset spring and other parts, wherein the thin film air cylinder consists of a thin film, a tray, a push rod, a spring and a connector, the screw eccentric wheel consists of an eccentric wheel, a screw, a bearing and a support, and the manual pull rod consists of a manual pull rod body, the manual lever, a locking spring and a base plate. The railway wagon locking type sealed brake cylinder can replace a parking brake function of a manual braking machine in a severe operation environment and enables a railway wagon to automatically keep braking force during long-time parking.
Description
Technical field
The present invention relates to railway wagon brake equipment technical field, refer to a kind of railway truck locking type sealed brake cylinder particularly.
Background technology
The principle of rail wagon brake system is filled with brake cylinder by pressurized air, makes brake cylinder piston rod extrapolated, and changing air pressure is mechanical thrust, thus promote the action of vehicle foundation brake rigging, makes brake shoe compress wheel, produce brake action.
At present, the piston of rail wagon brake cylinder is linear pushing in release of brake mechanism, does not have piston rod locking device, can not provide and make piston rod keep the function of corresponding state in desired location locking.Like this, braking force is kept when railway truck cannot be stopped for a long time by rail wagon brake cylinder.
Summary of the invention
Object of the present invention will provide a kind of railway truck locking type sealed brake cylinder exactly, while not affecting the normal service brake mitigation capability of train, the integrated latching device of brake cylinder can make brake cylinder piston rod be locked at desired location and keep relevant work state under imposing a condition, parking autobrake function is provided, the parking braking function of hand brake can be substituted under severe running environment, when railway truck is stopped for a long time, keep braking force automatically.
For realizing this object, railway truck locking type sealed brake cylinder designed by the present invention, it comprises cylinder body, the cylinder cap be connected with cylinder ends, be arranged on the piston in cylinder body, the piston rod that front end is fixedly connected with piston, be enclosed within the release spring outside piston rod, be arranged on the support beam in cylinder cap, be fixed on the spring backing plate on support beam, one end of described release spring is connected with piston, the other end of release spring is connected with spring backing plate, the rear end of described piston rod is through support beam and spring backing plate and pass cylinder cap, it also comprises balancing lever, be arranged on the diaphragm cylinder body of cylinder cap side, be arranged on the diaphragm cylinder cap of diaphragm cylinder body one end, be arranged on the back-up block of the diaphragm cylinder body other end, be arranged on the film between diaphragm cylinder body one end and diaphragm cylinder cap, with the supporting plate that film end face is combined, be enclosed within the diaphragm cylinder spring outside supporting plate, be arranged on the push rod that in diaphragm cylinder body and one end is fixedly connected with supporting plate, be fixed on the bearing on support beam, the first eccentric wheel on bearing is arranged on by bearing, the second eccentric wheel on bearing is arranged on by bearing, the first screw rod be threaded with the first eccentric inner ring, the second screw rod be threaded with the second eccentric inner ring, wherein, described diaphragm cylinder covers and is provided with joint, the other end of described push rod is through back-up block and the other end passing diaphragm cylinder body enters in cylinder cap, one end of described diaphragm cylinder spring is connected with supporting plate, the other end of diaphragm cylinder spring is connected with back-up block, the other end of push rod and the middle part of balancing lever hinged, the end face of balancing lever side is provided with corresponding with the first screw rod first and presents a theatrical performance as the last item on a programme, the end face of balancing lever opposite side is provided with corresponding with the second screw rod second and presents a theatrical performance as the last item on a programme, described piston rod is between the first eccentric wheel and the second eccentric wheel.
Further, tapered sleeve is socketed with outside the first half of described piston rod.
Further, it also comprise the pull bar mount pad being arranged on cylinder cap opposite side, the manual draw bar that can slidably reciprocate at the inner ring of pull bar mount pad, two ends respectively with the first screw rod and the hinged hand lever of the second screw rod, wherein, one end of described manual draw bar is provided with rectangular through hole, the middle part of described hand lever is fixed with the slide bar that can slide in above-mentioned rectangular through hole, described hand lever is fixed with backing plate towards the end face of pull bar mount pad, manual draw bar, through backing plate, is provided with locking spring between described pull bar mount pad inner end surface and backing plate.
Further, described manual draw bar is provided with the limited step coordinated with pull bar mount pad outer face.
Further, described first screw rod is connected by non-self-lock-ing Acme thread with the first eccentric inner ring, and the second screw rod is also connected by non-self-lock-ing Acme thread with the second eccentric inner ring.
Further, described cylinder body is fixed on cylinder seat.
Further, described piston is provided with the seal ring and lubricating sleeve that coordinate with cylinder body.
Further, described tapered sleeve is 1 ° relative to the tapering of piston rod axial line.
Further, described first eccentric wheel is equal with the second eccentric eccentric throw, and the scope of this eccentric throw is 2mm ~ 5mm.
Principle of work of the present invention is: during vehicle service braking, and piston driving piston rod straight line in cylinder body is released, by the impact of the newly-increased parts of protecgulum composition, with the effect of existing rail wagon brake cylinder without any difference.Emergency brake of vehicle, after brake pipe's pressure is lower than the setting locking actuating pressure of braking during standstill control cock, the pressure air in diaphragm type cylinder is discharged, and locking retracing spring drives hand lever to promote eccentric wheel screw rod and moves, eccentric wheel is made to swing clamping piston bar tapered sleeve, thus latching ram bar.After vehicle fills wind alleviation, after brake pipe's pressure is higher than the setting unblock actuating pressure of braking during standstill control cock, brake pipe's pressure air enters diaphragm type cylinder, cylinder piston stretches out, drive balancing lever to promote eccentric wheel screw rod to move, eccentric wheel is made to swing no longer clamping piston bar tapered sleeve, thus no longer latching ram bar, eccentric wheel swings and gets back to initial position.In addition, can also manual draw bar be pulled, drive hand lever to pull screw rod to move, make eccentric wheel swing no longer clamping piston bar tapered sleeve, thus no longer latching ram bar.
Beneficial effect of the present invention is as follows: by setting up piston rod catch gear and steering unit in brake cylinder front cover composition, piston rod can be forced to keep relevant work state in desired location locking, provide parking autobrake function.Meanwhile, structure of the present invention is simple, and retrofit work amount is little, does not affect the key property of the original brake equipment of vehicle, can meet the needs that rail wagon brake cylinder effect propety is stable, improves train operational safety.And the present invention can substitute the parking braking function of hand brake under severe running environment, keeps braking force automatically when making railway truck stop for a long time.Can hand brake be cancelled after using the present invention, improve the automatization level of braking during standstill.
Accompanying drawing explanation
Fig. 1 is that railway truck locking type sealed brake cylinder of the present invention unlocks the structural representation of operating mode at relieved state.
Fig. 2 is the structural representation of A-A section in Fig. 1.
Fig. 3 is the structural representation of railway truck locking type sealed brake cylinder of the present invention in braking mode locking operating mode.
Fig. 4 is the structural representation of B-B section in Fig. 3.
Fig. 5 is that railway truck locking type sealed brake cylinder of the present invention unlocks the structural representation of operating mode in braking mode.
Fig. 6 is the pneumatic unlocking structure schematic diagram of C-C section in Fig. 5.
Fig. 7 is the manual unlocking structural representation of C-C section in Fig. 5.
Fig. 8 is the structural representation of D-D section in Fig. 2.
Wherein: 1-cylinder body, 2-piston, 3-release spring, 4-piston rod, 4.1-tapered sleeve, 5-cylinder seat, 6-spring backing plate, 7-cylinder cap, 8-seal ring, 9-lubricating sleeve, 10-support beam, 11-diaphragm cylinder cap, 12-film, 13-supporting plate, 14-push rod, 15-the first screw rod, 16-bearing, 17-the first eccentric wheel, 18-bearing, 19-hand lever, 20-manual draw bar, 21-diaphragm cylinder spring, 22-balancing lever, 23-backing plate, 24-locking spring, 25-joint, 26-diaphragm cylinder body, 27-back-up block, 28-the second eccentric wheel, 29-the second screw rod, 30-the first presents a theatrical performance as the last item on a programme, 31-the second presents a theatrical performance as the last item on a programme, 32-pull bar mount pad, 33-rectangular through hole, 34-slide bar, 35-limited step.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Railway truck locking type sealed brake cylinder as shown in Fig. 1 ~ 8, it comprises cylinder body 1, the cylinder cap 7 be connected with cylinder body 1 end, be arranged on the piston 2 in cylinder body 1, the piston rod 4 that front end is fixedly connected with piston 2, be enclosed within the release spring 3 outside piston rod 4, be arranged on the support beam 10 in cylinder cap 7, be fixed on the spring backing plate 6 on support beam 10, one end of described release spring 3 is connected with piston 2, the other end of release spring 3 is connected with spring backing plate 6, the rear end of described piston rod 4 is through support beam 10 and spring backing plate 6 and pass cylinder cap 7, it also comprises balancing lever 22, be arranged on the diaphragm cylinder body 26 of cylinder cap 7 side, be arranged on the diaphragm cylinder cap 11 of diaphragm cylinder body 26 one end, be arranged on the back-up block 27 of diaphragm cylinder body 26 other end, be arranged on the film 12 between diaphragm cylinder body 26 one end and diaphragm cylinder cap 11, with the supporting plate 13 that film 12 end face is combined, be enclosed within the diaphragm cylinder spring 21 outside supporting plate 13, be arranged on the push rod 14 that in diaphragm cylinder body 26 and one end is fixedly connected with supporting plate 13, be fixed on the bearing 18 on support beam 10, the first eccentric wheel 17 on bearing 18 is arranged on by bearing 16, the second eccentric wheel 28 on bearing 18 is arranged on by bearing 16, the first screw rod 15 be threaded with the inner ring of the first eccentric wheel 17, the second screw rod 29 be threaded with the inner ring of the second eccentric wheel 28, wherein, described diaphragm cylinder cap 11 is provided with joint 25, the other end of described push rod 14 is through back-up block 27 and the other end passing diaphragm cylinder body 26 enters in cylinder cap 7, one end of described diaphragm cylinder spring 21 is connected with supporting plate 13, the other end of diaphragm cylinder spring 21 is connected with back-up block 27, the other end of push rod 14 and the middle part of balancing lever 22 hinged, the end face of balancing lever 22 side is provided with corresponding with the first screw rod 15 first and presents a theatrical performance as the last item on a programme 30, the end face of balancing lever 22 opposite side is provided with corresponding with the second screw rod 29 second and presents a theatrical performance as the last item on a programme 31, described piston rod 4 is between the first eccentric wheel 17 and the second eccentric wheel 28.
In technique scheme, outside the first half of described piston rod 4, be socketed with tapered sleeve 4.1.Described eccentric wheel compresses tapered sleeve 4.1, and like this, both can form more stable, failure-free locking relation.Described tapered sleeve 4.1 is 1 ° relative to the tapering of piston rod 4 axial line.Can guarantee that screw rod eccentric wheel has suitable eccentric throw.
In technique scheme, it also comprises the pull bar mount pad 32 being arranged on cylinder cap 7 opposite side, the manual draw bar 20 that can slidably reciprocate at the inner ring of pull bar mount pad 32, two ends respectively with the first screw rod 15 and the hinged hand lever 19 of the second screw rod 29, wherein, one end of described manual draw bar 20 is provided with rectangular through hole 33, the middle part of described hand lever 19 is fixed with the slide bar 34 that can slide in above-mentioned rectangular through hole 33, described hand lever 19 is fixed with backing plate 23 towards the end face of pull bar mount pad 32, manual draw bar 20 is through backing plate 23, locking spring 24 is provided with between described pull bar mount pad 32 inner end surface and backing plate 23.
In technique scheme, described manual draw bar 20 is provided with the limited step 35 coordinated with pull bar mount pad 32 outer face.
In technique scheme, described first screw rod 15 is connected by non-self-lock-ing Acme thread with the inner ring of the first eccentric wheel 17, and the second screw rod 29 is also connected by non-self-lock-ing Acme thread with the inner ring of the second eccentric wheel 28.
In technique scheme, described cylinder body 1 is fixed on cylinder seat 5.
In technique scheme, described piston 2 is provided with the seal ring 8 and lubricating sleeve 9 that coordinate with cylinder body 1.
In technique scheme, the eccentric throw of described first eccentric wheel 17 and the second eccentric wheel 28 is equal, and the scope of this eccentric throw is 2mm ~ 5mm.Like this, can guarantee eccentric wheel and piston rod self-locking reliable and stable.
In technique scheme, on the tapered sleeve 4.1 of described eccentric wheel and piston rod 4, equal correspondence is provided with friction lining.Like this, the locking friction force between eccentric wheel and piston rod can be increased.
The parts that the present invention is newly-increased on existing brake cylinder basis and original parts can form following three kinds of application mechanisms, as depicted in figs. 1 and 2:
One, diaphragm type cylinder mechanism mainly comprises diaphragm cylinder cap 11, film 12, pallet 13, push rod 14, diaphragm cylinder spring 21 and joint 25, unblock thrust is mainly provided, after diaphragm type cylinder fills wind, push rod 14 can promote balancing lever 22 and drive screw rod 15 to move, above-mentioned two eccentric wheel are swung and is in solution lock-bit, now piston rod 4 is not locked, and locking type brake cylinder effect operating mode is identical with general brake cylinder.
They are two years old, screw rod eccentric mechanism mainly comprises the first screw rod 15, second screw rod 29, bearing 16, first eccentric wheel 17, second eccentric wheel 28 and bearing 18, the function of latching ram bar is mainly provided, connected by non-self-lock-ing Acme thread between eccentric wheel and corresponding screw rod, screw axial moves and corresponding eccentric wheel can be caused to swing, after eccentric wheel swings clamping piston bar 4 tapered sleeve 4.1, can latching ram bar 4, make brake cylinder braking force continue to keep.
They are three years old, manual draw bar mechanism mainly comprises hand lever 19, manual draw bar 20, backing plate 23 and locking spring 24, manual unlocking function is mainly provided, when vehicle is without under the operating mode of wind regime, can pull manual draw bar 20, manually lever 19 drives the first screw rod 15 and the second screw rod 29 to move, and the first eccentric wheel 17 and the second eccentric wheel 28 is swung and unlocks, piston 2 drives piston rod 4 to return back to bottom cylinder body 1, complete incidence graph after brake cylinder braking.
Again as shown in figure 3 to figure 7, the specific works process of railway truck locking type sealed brake cylinder of the present invention is as follows:
When locking operating mode:
After emergency brake of vehicle, after brake pipe's pressure is lower than the setting locking actuating pressure of braking during standstill control cock, pressure air in diaphragm type cylinder is discharged, locking spring 24 drives hand lever 19 to promote the first screw rod 15 and the second screw rod 29 moves, the first eccentric wheel 17 and the second eccentric wheel 28 is made to swing the tapered sleeve 4.1 of clamping piston bar 4, thus latching ram bar 4.
When pneumatic unblock operating mode:
After vehicle fills wind alleviation, after brake pipe's pressure is higher than the setting unblock actuating pressure of braking during standstill control cock, brake pipe's pressure air enters diaphragm type cylinder, push rod 14 stretches out, drive balancing lever 22 promotes the first screw rod 15 and the second screw rod 29 moves, make the first eccentric wheel 17 and the second eccentric wheel 28 swing the tapered sleeve 4.1 of no longer clamping piston bar 4, thus unlock piston rod 4.
When manual unlocking operating mode:
After first eccentric wheel 17 and the second eccentric wheel 28 latching ram bar 4, also manual draw bar 20 can be pulled, hand lever 19 is driven to pull the first screw rod 15 and the second screw rod 29 to move, make the first eccentric wheel 17 and the second eccentric wheel 28 swing the tapered sleeve 4.1 of no longer clamping piston bar 4, thus unlock piston rod 4.
The content that this specification sheets is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Finally should be noted that, above detailed description of the invention is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to preferred embodiment to invention has been detailed description, but those of ordinary skill in the art are to be understood that, simple modification or equivalent replacement are carried out to technical scheme of the present invention, such as according to brake cylinder actual design needs, also can adopt the tapered sleeve 4.1 cancelling overcoat at the first half of described piston rod 4, still can reach certain locking effect; Or, adopt and design screw rod orienting sleeve and increase bearing at bearing 18, the effect of increase by first screw rod 15 and the second screw rod 29 travelling performance can be reached.These all can not depart from the spirit and scope of technical solution of the present invention, and among the protection domain that all should be encompassed in the claims in the present invention.
Claims (9)
1. a railway truck locking type sealed brake cylinder, it comprises cylinder body (1), the cylinder cap (7) be connected with cylinder body (1) end, be arranged on the piston (2) in cylinder body (1), the piston rod (4) that front end is fixedly connected with piston (2), be enclosed within piston rod (4) release spring outward (3), be arranged on the support beam (10) in cylinder cap (7), be fixed on the spring backing plate (6) on support beam (10), one end of described release spring (3) is connected with piston (2), the other end of release spring (3) is connected with spring backing plate (6), the rear end of described piston rod (4) is through support beam (10) and spring backing plate (6) and pass cylinder cap (7), it is characterized in that: it also comprises balancing lever (22), be arranged on the diaphragm cylinder body (26) of cylinder cap (7) side, be arranged on the diaphragm cylinder cap (11) of diaphragm cylinder body (26) one end, be arranged on the back-up block (27) of diaphragm cylinder body (26) other end, be arranged on the film (12) between diaphragm cylinder body (26) one end and diaphragm cylinder cap (11), the supporting plate (13) be combined with film (12) end face, be enclosed within supporting plate (13) diaphragm cylinder spring (21) outward, be arranged on the push rod (14) that in diaphragm cylinder body (26) and one end is fixedly connected with supporting plate (13), be fixed on the bearing (18) on support beam (10), the first eccentric wheel (17) on bearing (18) is arranged on by bearing (16), the second eccentric wheel (28) on bearing (18) is arranged on by bearing (16), the first screw rod (15) be threaded with the inner ring of the first eccentric wheel (17), the second screw rod (29) be threaded with the inner ring of the second eccentric wheel (28), wherein, described diaphragm cylinder cap (11) is provided with joint (25), the other end of described push rod (14) is through back-up block (27) and the other end passing diaphragm cylinder body (26) enters in cylinder cap (7), one end of described diaphragm cylinder spring (21) is connected with supporting plate (13), the other end of diaphragm cylinder spring (21) is connected with back-up block (27), the other end of push rod (14) and the middle part of balancing lever (22) hinged, the end face of balancing lever (22) side is provided with corresponding with the first screw rod (15) first and presents a theatrical performance as the last item on a programme (30), the end face of balancing lever (22) opposite side is provided with corresponding with the second screw rod (29) second and presents a theatrical performance as the last item on a programme (31), described piston rod (4) is positioned between the first eccentric wheel (17) and the second eccentric wheel (28).
2. railway truck locking type sealed brake cylinder according to claim 1, is characterized in that: be socketed with tapered sleeve (4.1) outside the first half of described piston rod (4).
3. railway truck locking type sealed brake cylinder according to claim 1, it is characterized in that: it also comprises the pull bar mount pad (32) being arranged on cylinder cap (7) opposite side, the manual draw bar (20) that can slidably reciprocate at the inner ring of pull bar mount pad (32), two ends respectively with the first screw rod (15) and the hinged hand lever (19) of the second screw rod (29), wherein, one end of described manual draw bar (20) is provided with rectangular through hole (33), the middle part of described hand lever (19) is fixed with the slide bar (34) that can slide in above-mentioned rectangular through hole (33), described hand lever (19) is fixed with backing plate (23) towards the end face of pull bar mount pad (32), manual draw bar (20) is through backing plate (23), locking spring (24) is provided with between described pull bar mount pad (32) inner end surface and backing plate (23).
4. railway truck locking type sealed brake cylinder according to claim 3, is characterized in that: described manual draw bar (20) is provided with the limited step (35) coordinated with pull bar mount pad (32) outer face.
5. railway truck locking type sealed brake cylinder according to claim 1, it is characterized in that: described first screw rod (15) is connected by non-self-lock-ing Acme thread with the inner ring of the first eccentric wheel (17), and the second screw rod (29) is also connected by non-self-lock-ing Acme thread with the inner ring of the second eccentric wheel (28).
6. railway truck locking type sealed brake cylinder according to claim 1, is characterized in that: described cylinder body (1) is fixed on cylinder seat (5).
7. railway truck locking type sealed brake cylinder according to claim 1, is characterized in that: described piston (2) is provided with the seal ring (8) and lubricating sleeve (9) that coordinate with cylinder body (1).
8. railway truck locking type sealed brake cylinder according to claim 2, is characterized in that: described tapered sleeve (4.1) is 1 ° relative to the tapering of piston rod (4) axial line.
9. railway truck locking type sealed brake cylinder according to claim 1, is characterized in that: the eccentric throw of described first eccentric wheel (17) and the second eccentric wheel (28) is equal, and the scope of this eccentric throw is 2mm ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749482.0A CN104527713B (en) | 2014-12-09 | 2014-12-09 | Railway wagon locking type sealed brake cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749482.0A CN104527713B (en) | 2014-12-09 | 2014-12-09 | Railway wagon locking type sealed brake cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104527713A true CN104527713A (en) | 2015-04-22 |
| CN104527713B CN104527713B (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410749482.0A Active CN104527713B (en) | 2014-12-09 | 2014-12-09 | Railway wagon locking type sealed brake cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527713B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944991A (en) * | 2018-08-15 | 2018-12-07 | 眉山中车制动科技股份有限公司 | A kind of low and slow decompression force parks cylinder |
| CN109050502A (en) * | 2018-08-13 | 2018-12-21 | 眉山中车制动科技股份有限公司 | A kind of rail freight braking force holder |
| CN111907497A (en) * | 2020-08-14 | 2020-11-10 | 中车齐齐哈尔车辆有限公司 | Integrated braking device and railway wagon with same |
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| US4058348A (en) * | 1977-03-04 | 1977-11-15 | Westinghouse Air Brake Company | Brake apparatus with a combined brake cylinder and reservoir |
| CN2551528Y (en) * | 2002-06-21 | 2003-05-21 | 株洲电力机车厂 | Spring Energy storage parking brake for railway locomotive |
| CN102996690A (en) * | 2012-12-18 | 2013-03-27 | 南车长江车辆有限公司 | Mechanical interlocking type parking brake for railway vehicle |
| CN203472874U (en) * | 2013-09-23 | 2014-03-12 | 南车长江车辆有限公司 | Parking brake of goods wagon |
| CN204250078U (en) * | 2014-12-09 | 2015-04-08 | 南车长江车辆有限公司 | Railway truck locking type sealed brake cylinder |
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2014
- 2014-12-09 CN CN201410749482.0A patent/CN104527713B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4058348A (en) * | 1977-03-04 | 1977-11-15 | Westinghouse Air Brake Company | Brake apparatus with a combined brake cylinder and reservoir |
| CN2551528Y (en) * | 2002-06-21 | 2003-05-21 | 株洲电力机车厂 | Spring Energy storage parking brake for railway locomotive |
| CN102996690A (en) * | 2012-12-18 | 2013-03-27 | 南车长江车辆有限公司 | Mechanical interlocking type parking brake for railway vehicle |
| CN203472874U (en) * | 2013-09-23 | 2014-03-12 | 南车长江车辆有限公司 | Parking brake of goods wagon |
| CN204250078U (en) * | 2014-12-09 | 2015-04-08 | 南车长江车辆有限公司 | Railway truck locking type sealed brake cylinder |
Non-Patent Citations (1)
| Title |
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| 纪晶: "高速自锁紧液压制动器的优化设计", 《内蒙古工业大学学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109050502A (en) * | 2018-08-13 | 2018-12-21 | 眉山中车制动科技股份有限公司 | A kind of rail freight braking force holder |
| CN109050502B (en) * | 2018-08-13 | 2023-08-04 | 眉山中车制动科技股份有限公司 | Braking force retaining device for railway freight car |
| CN108944991A (en) * | 2018-08-15 | 2018-12-07 | 眉山中车制动科技股份有限公司 | A kind of low and slow decompression force parks cylinder |
| CN111907497A (en) * | 2020-08-14 | 2020-11-10 | 中车齐齐哈尔车辆有限公司 | Integrated braking device and railway wagon with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104527713B (en) | 2017-02-22 |
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Address after: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Applicant after: CRRC YANGTZE CO., LTD. Address before: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Applicant before: China South Locomotive & Rolling Stock Changjiang Vehicle Company |
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