CN2084896U - Electric goat of switch - Google Patents
Electric goat of switch Download PDFInfo
- Publication number
- CN2084896U CN2084896U CN 91213417 CN91213417U CN2084896U CN 2084896 U CN2084896 U CN 2084896U CN 91213417 CN91213417 CN 91213417 CN 91213417 U CN91213417 U CN 91213417U CN 2084896 U CN2084896 U CN 2084896U
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- CN
- China
- Prior art keywords
- drive link
- locating rack
- switch
- gear
- rod
- 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.)
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Abstract
The utility model relates to an electric goat of switch for the teaching training of the railway sand-map model, comprising a miniature dc motor, a driving gear, a drive gear, a bearing support, a drive link, a location support, an electric switch, a bottom board and a housing, wherein, a section of inner screw threads on the center of the drive gear is joggled with the drive screw thread on the drive link, which simultaneously realizes deceleration and the changing from circular motion to straight reciprocating motion only by one drive gear and one drive link. With the advantages of simple structure, small volume, and self locking, the electric goat of switch is especially suitable for the railway sand-map model and provides a new design consideration for the actual railway goat of switch.
Description
The utility model is a kind of electric switch machine of model track switch conversion, is used for the teaching and training of railway sand table model, belongs to model railway handling device field.
In the railway transportation teaching, often need to carry out track switch commentaries on classics and remove training in conjunction with the railway sand table model, the main at present switching machine that uses electromagnet type, utilizing electromagnet to inhale moving guide rod plate movable model point tongue removes track switch commentaries on classics, its shortcoming is that volume is big, consumption of current is big, can not self-locking, when work, need a direct road power supply, magnet coil generated heat even burn out.The electronic switching machine that occurs a kind of Worm-gear type recently, as number of patent application is 89200083.X, name is called the miniature electric switch machine, be power exactly with the DC motor, the drive tooth bar moves back and forth and track switch commentaries on classics is removed after worm and gear slows down, this switching machine has been realized self-locking by worm-and-wheel gear, and for the control motor with provide electric signal and increased a two way contact switch, overcome the intrinsic shortcoming of electromagnet type switching machine preferably, but this switching machine still exists complex structure, volume is big and productive costs is high shortcoming.
The purpose of this utility model be to overcome above-mentioned weak point of the prior art and provide a kind of can self-locking, electric signal output, simple in structure, volume is little and the life-span is long sand table model electric track pointer arranged.
The purpose of this utility model realizes by following measure: this electric switch machine is made up of miniature cocurrent electromotor, driving gear, transmission gear, bearing support, drive link, locating rack, base plate and electric affair switch, wherein, the transmission gear outer rim has the external gear that is meshed with driving gear, there is the protrusion axle sleeve of hollow both sides, and one section negative thread is arranged in the axle sleeve; The one section motion thread and the square body of rod of a segment length are arranged on the drive link; One and the corresponding positioning groove of the oblong body of rod are arranged on the locating rack; Electricity affair switch is made up of two spring leafs and two locating pieces and locating rack; Its installation site and connecting relation are: electrical motor, bearing support, locating rack and spring leaf are fixed on the base plate, driving gear is fixed on the shaft of motor, the axle sleeve of transmission gear is contained on the bearing support, its external gear is meshed with driving gear, motion thread on the drive link is contained in the axle sleeve and is meshed with negative thread, the oblong body of rod on the drive link is contained in the positioning groove of locating rack, spring leaf has certain clearance at the both sides and the locating rack of locating rack, locating piece is in the outside of spring leaf and be fixed on the oblong body of rod, distance between two locating pieces should be double length and the length of transmission gear negative thread and the length sum of locating rack of motion thread on the drive link, and locating rack and two spring leafs are connected to a lead respectively and export as electric signal.When the motor drives driving gear rotates, transmission gear also rotates thereupon, the negative thread of transmission gear also rotates, the motion thread that is meshed with negative thread can not rotate in positioning groove because of the oblong body of rod, make drive link can only do straight reciprocating motion, when transmission gear circled, drive link only moved the distance of a pitch, had realized only just reaching the purpose of slowing down and circular movement being become straight reciprocating motion simultaneously with a transmission gear and a drive link.Thereby reach purpose such as simple in structure, that volume is little.
The drawing of accompanying drawing is described as follows:
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is the scheme drawing of transmission gear,
Fig. 3 is the scheme drawing of drive link.
Be further described as follows in conjunction with the accompanying drawings:
Referring to accompanying drawing, miniature cocurrent electromotor 1, bearing support 5, spring leaf 7 and locating rack 8 are fixed on the base plate 9, driving gear 2 is fixed in the rotating shaft of electrical motor 1, the axle sleeve 10 of transmission gear 3 is contained on the bearing support 5, its external gear 12 and driving gear 2 engagements, motion thread 13 on the drive link 4 is contained in the axle sleeve and with negative thread 11 and meshes, the oblong body of rod 14 on the drive link 4 is contained in the positioning groove of locating rack 8, spring leaf 7 has certain clearance on the both sides of locating rack 8 and with locating rack, locating piece 6 is fixed on the oblong body of rod 14 in the outside of spring leaf 7, and locating rack 8 and two spring leafs 7 respectively are connected to a lead rotated and provided location and antiposition as the control motor electric signal output line.Cover at last and close lid and get final product.During design, should be taken into account that drive link 4 does length poor that the distance of straight reciprocating motion equals two distances between the locating piece 6 and locating rack 8, also equal the double length of motion thread on the drive link and the length sum of transmission gear negative thread, transmission speed is that transmission gear turns around, drive link moves a pitch, as will further underspeeding, can do the number of teeth of transmission gear to such an extent that Duo 1 to several times than the number of teeth of driving gear.When electrical motor rotates, the negative thread of transmission gear rotates thereupon, motion thread on the drive link that is engaged with can not rotate in positioning groove because of the oblong body of rod, drive link can only moving linearly, when motion thread moves to when leaving negative thread just no longer mobile, at this moment, locating piece is pushed spring leaf to locating rack and is made it to contact and export an electric signal.Because spring leaf is to the elastic force of locating piece, though make motion thread leave negative thread but still contact with negative thread, when needs change when removing, to electrical motor turn-on reversal voltage, transmission gear is backward rotation also.Motion thread is retracted by negative thread and moves round about, and the other end that leaves negative thread up to the other end of motion thread is for extremely, and at this moment, another locating piece is pushed another spring leaf to locating rack make it to contact and the electric signal of exporting an antiposition.
The utility model is through practical probation, have simple in structure, handling ease, cost is low, volume is little, the life-span is long, can self-locking, the advantages such as electric signal output of point tongue location and antiposition are arranged, be specially adapted to the rail sand table model, also provide a new design considerations for actual railway switch switching machine.
Claims (2)
1, a kind of electronic switching machine of track switch that is used for railway sand table model teaching and training, form by miniature cocurrent electromotor, driving gear, transmission gear, bearing support, drive link, locating rack, base plate and electric affair switch, it is characterized in that the transmission gear outer rim has the external gear that is meshed with driving gear, there is the protrusion axle sleeve of hollow both sides, and one section negative thread is arranged in the axle sleeve; The one section motion thread and the square body of rod of a segment length are arranged on the drive link; One and the corresponding positioning groove of the oblong body of rod are arranged on the locating rack; Electricity affair switch is made up of two spring leafs and locating rack and two locating pieces; Its installation site and connecting relation are: electrical motor, bearing support, locating rack and spring leaf are fixed on the base plate, driving gear is fixed on the shaft of motor, the axle sleeve of transmission gear is contained on the bearing support, its external gear and driving gear engagement, motion thread on the drive link is contained in the axle sleeve and meshes with negative thread, the oblong body of rod on the drive link is contained in the positioning groove of locating rack, and spring leaf is on the both sides of locating rack, and locating piece is fixed on the oblong body of rod in the outside of spring leaf.
2, electronic switching machine according to claim 1 is characterized in that the distance between two locating pieces on the drive link is double length and the length of transmission gear negative thread and the length sum of locating rack of motion thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91213417 CN2084896U (en) | 1991-03-28 | 1991-03-28 | Electric goat of switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91213417 CN2084896U (en) | 1991-03-28 | 1991-03-28 | Electric goat of switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2084896U true CN2084896U (en) | 1991-09-18 |
Family
ID=4921780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91213417 Withdrawn CN2084896U (en) | 1991-03-28 | 1991-03-28 | Electric goat of switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2084896U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101011976B (en) * | 2006-02-01 | 2011-05-25 | 阿尔斯通运输公司 | Railroad switch actuating device |
| CN103144650A (en) * | 2004-04-23 | 2013-06-12 | 通用电气公司 | Switch machine |
| CN107839717A (en) * | 2017-11-07 | 2018-03-27 | 上海工程技术大学 | A kind of switch structure of urban track traffic |
| CN110396875A (en) * | 2018-04-25 | 2019-11-01 | 比亚迪股份有限公司 | A kind of turnout junction girder driving device, track switch and track |
-
1991
- 1991-03-28 CN CN 91213417 patent/CN2084896U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144650A (en) * | 2004-04-23 | 2013-06-12 | 通用电气公司 | Switch machine |
| CN101011976B (en) * | 2006-02-01 | 2011-05-25 | 阿尔斯通运输公司 | Railroad switch actuating device |
| CN107839717A (en) * | 2017-11-07 | 2018-03-27 | 上海工程技术大学 | A kind of switch structure of urban track traffic |
| CN107839717B (en) * | 2017-11-07 | 2020-04-03 | 上海工程技术大学 | Switch structure of urban rail transit |
| CN110396875A (en) * | 2018-04-25 | 2019-11-01 | 比亚迪股份有限公司 | A kind of turnout junction girder driving device, track switch and track |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |