CN2714400Y - Electric car retarder - Google Patents
Electric car retarder Download PDFInfo
- Publication number
- CN2714400Y CN2714400Y CN 200420116979 CN200420116979U CN2714400Y CN 2714400 Y CN2714400 Y CN 2714400Y CN 200420116979 CN200420116979 CN 200420116979 CN 200420116979 U CN200420116979 U CN 200420116979U CN 2714400 Y CN2714400 Y CN 2714400Y
- Authority
- CN
- China
- Prior art keywords
- electric car
- crank
- electric motor
- car retarder
- speed reducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an electric car speed reducer, comprising a braking mechanism, a crank connecting rod mechanism, and an electric motor power transmission mechanism, and the electric motor and the gear speed reducer in the electric motor power transmission mechanism are connected with the crank connecting rod mechanism through a coupler. The electric car speed reducer is characterized in that: the electric motor and the gear speed reducer are designed to be an integration, and the purpose is to ensure the coaxial operating stability of the mechanism. The utility model has the advantages of small electric motor power, low production cost, and saved energy; at the same time of overcoming the direct connection of the electric motor shaft and the crank connecting rod mechanism and driving the operation of the braking mechanism, the problems that the electric motor can not rotate or the shaft can be twisted off, etc caused by that the electric motor and the gear speed reducer are non-axial can be solved, and the electric car speed reducer is novel.
Description
Technical field
The utility model relates to a kind of car retarder, relates in particular to the electric car retarder that a kind of hump yard marshalling station uses.
Background technology
The car retarder that present China railways marshalling station uses mainly contains hydraulic type car retarder, pneumatic type car retarder and electrodynamic type car retarder, wherein the electrodynamic type car retarder is to provide power with electrical motor, motor shaft and piston crank mechanism direct connection drive stop mechanism work.Because motor reel and piston crank mechanism direct connection for exporting certain moment, require the power of motor bigger, electric current is big, causes the volume of electrical motor big, Heavy Weight, productive costs height; Four vehicle retarders comprise 28 motors, and its power is about 300kw when starting simultaneously, and working current is big, does not meet energy-conservation requirement.Simultaneously in the electric car retarder working process, motor shaft and piston crank mechanism direct connection, after the braking of drive stop mechanism, alleviation put in place, motor generation stall, the rotor inertia that rotor produces makes motor shaft bear bigger torsional pulse suddenly, and generally motor shaft is twisted off or twists and warps under 2-4 impacts for ten thousand times.In addition, motor shaft directly bears in the braking procedure by vehicle weight by the radial impact power that connecting rod transmits, and causes motor reel and rotor to be offset.Motor stator and rotor locking phenomenon occur, whether motor can't normal operation, or not during this alleviations, and car accident easily takes place, and impulsive force also causes part damages such as motor field frame simultaneously.Though and patent to be the electrodynamic type car retarder of 03241949.x installed gear reducer between electrical motor and piston crank mechanism, but still exist and be difficult to guarantee that electrical motor and gear reducer are coaxial and cause electrical motor not rotate or phenomenon such as spool twisted off.
The utility model content
The purpose of this utility model provides a kind of electrodynamic type car retarder, overcoming motor shaft and piston crank mechanism direct connection, when driving stop mechanism work, solve because electrical motor and problem such as the gear reducer disalignment causes electrical motor not rotate or spool twisted off.
Technical solution of the present utility model is: a kind of electric car retarder, comprise stop mechanism, piston crank mechanism and motor power transmission device, electrical motor in the motor power transmission device, gear reducer are connected with crank shaft, crank, the connecting rod of piston crank mechanism by coupler, the two ends of crank shaft are by big seat supports, it is characterized in that: described electrical motor and gear reducer design are in aggregates, to guarantee mechanism's right alignment running steadily.
Described gear reducer is provided with overload protecting mechanism, and overload protecting mechanism is the frictional connection device, and it is arranged at gear reducer inner gear outer end.
The locking face of described piston crank mechanism is a plane contact, makes its area of contact big, safe and reliable.
The coupler that is provided with between described piston crank mechanism and Power train is the purpose made sliding cross coupling, is easy to guarantee the diaxon right alignment.
The utility model has the advantages that motor power (output) is little, productive costs is low, energy savings; Overcoming motor shaft and piston crank mechanism direct connection, when driving stop mechanism work, solving because electrical motor and problem such as the gear reducer disalignment causes electrical motor not rotate or spool twisted off are a kind of later-model electric car retarders.
Description of drawings
Fig. 1 is a structural representation of the present utility model,
Figure 1A is the partial schematic diagram of parts 26,
Fig. 2 is a Power train scheme drawing of the present utility model,
Fig. 2 A is the partial schematic diagram of parts 21,
Fig. 2 B is that the A of Fig. 2 is to section-drawing.
1. concrete slab sleepers among the figure, 2. outer brake clamp, 3. braking rail, 4. rail rubber tie plate, 5. anti-turn bolt, 6. rotating-proof nut, 7. rail bearing, 8. rail permanent seat, 9. channel, 10. little crank throw, 11. little bearing, 12. back stay, 13. front tension bar, 14. inside brake pincers, 15. big crank throw, 16. connecting rod, 17. electric motor drive mechanism, 18. big bearing, 19. electrical motor, 20. gear reducer, 21. coupler, 22. crank, 23. crank shaft, 24. cutout relay, 25 frictional connection devices, 26 locking faces, 27 inner geares.
The specific embodiment
The utility model comprises stop mechanism, piston crank mechanism and motor power transmission device, as depicted in figs. 1 and 2, brake clamp group in the stop mechanism is connected by main shaft by inside brake pincers, outer brake clamp and rail bearing, braking rail by bolted connection on inside and outside brake clamp, little crank throw is connected with the front and back pull bar by little axle with big crank throw, and by little bearing and big seat supports.Big crank throw is connected with connecting rod by little axle.Piston crank mechanism is made up of connecting rod, crank and crank shaft.The motor power transmission device is connected with crank shaft, crank and connecting rod by coupler by motor drives one differential teeth planetary gear reducer, and crankshaft end is equipped with cutout relay.Described electrical motor and gear reducer design are in aggregates, to guarantee mechanism's right alignment running steadily.
When electrical motor is received brake command, the motor drives epicyclic reduction gear rotates, drive crank by coupler and rotate counterclockwise 180 degree, by the crank drivening rod, pull bar and crank throw swing make the braking rail opening that is installed in inside and outside brake clamp (be made as by 165mm and become 130mm) from large to small, and this moment, electric car retarder was in retarder location, crank and connecting rod locking, the electrical motor outage.
When electrical motor is received the alleviation order, the motor drives epicyclic reduction gear rotates, drive crank by coupler and clockwise rotate 180 degree, by the crank drivening rod, pull bar and crank throw swing, the braking rail opening that is installed in inside and outside brake clamp is changed from small to big (be made as by 130mm and become 165mm), and electric car retarder was in and alleviated the position this moment, the electrical motor outage.
The locking mechanism of crank connecting link adopts the spacing locking in plane, and its locking face is processed after with the built-up welding of hard welding rod, guarantees to impact contact hardness, and the braking locking is reliable and stable, easy release when alleviation, and safe in operation, and the locking plane easily processes maintenance.
When crank connecting link entered braking locking position, the cutout relay control motor cut off the power supply immediately, avoided motor drives gear reducer idle running abrasion after braking puts in place, reduced the impact of transmission device when braking puts in place simultaneously.
Claims (5)
1. electric car retarder, comprise stop mechanism, piston crank mechanism and motor power transmission device, electrical motor in the motor power transmission device, gear reducer are connected with crank shaft, crank, the connecting rod of piston crank mechanism by coupler, it is characterized in that: described electrical motor and gear reducer design are in aggregates.
2. electric car retarder according to claim 1 is characterized in that described gear reducer is provided with overload protecting mechanism, and overload protecting mechanism is the frictional connection device, and it is arranged at gear reducer inner gear outer end.
3. electric car retarder according to claim 1 is characterized in that the locking mechanism of crank connecting link adopts the plane locking.
4. electric car retarder according to claim 1 is characterized in that described coupler is the purpose made sliding cross coupling.
5. electric car retarder according to claim 3 is characterized in that described locking face is with processing after the built-up welding of hard welding rod.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420116979 CN2714400Y (en) | 2004-12-31 | 2004-12-31 | Electric car retarder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420116979 CN2714400Y (en) | 2004-12-31 | 2004-12-31 | Electric car retarder |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2714400Y true CN2714400Y (en) | 2005-08-03 |
Family
ID=34875058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200420116979 Expired - Fee Related CN2714400Y (en) | 2004-12-31 | 2004-12-31 | Electric car retarder |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2714400Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101944794A (en) * | 2009-07-01 | 2011-01-12 | 德昌电机(深圳)有限公司 | Electrical tool |
CN112406944A (en) * | 2019-08-22 | 2021-02-26 | 吕贵刚 | Electric drive unit |
-
2004
- 2004-12-31 CN CN 200420116979 patent/CN2714400Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101944794A (en) * | 2009-07-01 | 2011-01-12 | 德昌电机(深圳)有限公司 | Electrical tool |
CN101944794B (en) * | 2009-07-01 | 2014-07-23 | 德昌电机(深圳)有限公司 | Electrical tool |
CN112406944A (en) * | 2019-08-22 | 2021-02-26 | 吕贵刚 | Electric drive unit |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050803 Termination date: 20101231 |