CN205059733U - Rack and pinion formula small -size electric automobile frame that can stretch out and draw back automatically - Google Patents
Rack and pinion formula small -size electric automobile frame that can stretch out and draw back automatically Download PDFInfo
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- CN205059733U CN205059733U CN201520823267.0U CN201520823267U CN205059733U CN 205059733 U CN205059733 U CN 205059733U CN 201520823267 U CN201520823267 U CN 201520823267U CN 205059733 U CN205059733 U CN 205059733U
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- rack
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Abstract
The utility model discloses a rack and pinion formula small -size electric automobile frame that can stretch out and draw back automatically, its characterized in that adopts boundary beam formula frame, including two frames in front and back, preceding frame fixed gear, the fixed and gear complex rack of back frame. Preceding frame, back frame drive rack and pinion through the motor and provide power with front and back removal each other on being in same horizontal plane. This frame has simple structure, rigidity is big, frame middle part is lower, has satisfied the stability that the car travel and the requirement of travelling comfort, the front truck sets up the meter form in order to permit the directive wheel to have great deflection angle, the frame the back -end kickup, the space of beating of having guaranteed wheel when the suspension warp, but frame length automatically regulated, additional sleeve mechanism has guaranteed frame rigidity, realizes that flexible simple structure is reliable.
Description
Technical field
The utility model relates to a kind of pinion and-rack automatically retractable small-sized electric vehicle vehicle frame, belongs to vehicle chassis technology field.
Background technology
Current common compact electric car body is grown up all at about 4m, about minimum turning radius 6m, is difficult to pass through for the sharply turning in some narrow road section in city and rural area and mountain road, causes the road percent of pass of electronlmobil greatly to reduce.
In addition according to investigations, people are that 1 people is riding in the running time of city 70%, and the maximum speed that urban highway allows is 70 ~ 80 kilometers/hour, and long vehicle body not only makes road-handling capacity reduce, cause urban highway more and more crowded, also make parking become more and more difficult.
Chinese scholar has carried out long-term research to automobile chassis frame, and achieves certain achievement.Along with automobile is more and more universal in daily life, many families all possess an even more automobile, and the quantity of automobile is the increase of geometry number, and parking stall is also fewer and feweri outside at ordinary times, and the difficulty of parking significantly increased than having had in the past.
Utility model content
The purpose of this utility model is for existing issue, the small-sized electric vehicle vehicle frame of a pinion and-rack automatically retractable is provided, vehicle body entire length can be shortened when needs, thus realize the turn radius reducing automobile, improve road-handling capacity, reduce the functions such as parking floor area.
Technical problem to be solved in the utility model is when not affecting rideability and the unitized frame intensity of automobile, provides a kind of and can extend and shorten and small-sized electric vehicle vehicle frame simple and reliable for structure.
In order to achieve the above object, the technical scheme that the utility model adopts is:
Adopt straight frame, formed by the welded steel of different model.It is characterized in that, comprise former and later two vehicle frames, front vehicle frame fixed gear wheel, Rear frame fixes the tooth bar coordinated with gear.Described front vehicle frame, Rear frame are in same level, provide power with front and back movement mutually by electrical motor driven gear tooth bar.
Described front vehicle frame is made up of hollow longitudinal and cross beam, and electrical motor is connected with crossbeam, and motor reel connects gear, and gear connects toothed disc, toothed disc and gear wheel shaft consolidation, and gear wheel shaft is provided with miniature gears; The hollow longeron rear portion of described front vehicle frame is bent downwardly, thus reduces the center of gravity of vehicle; Crossbeam is front suspension mounting rail, and vehicle frame front end is narrower is that turning performance is good in order to make wheel have larger drift angle.
Described Rear frame is formed by hollow longeron, round bar and beam welding, and front vehicle frame crossbeam coordinates with round bar; Two hollow longeron K/UP parts outside described Rear frame, make back axle have larger upper bullet space, are conducive to vehicle riding comfort; Described Rear frame also comprises two girder steels stretched out, and is inserted in respectively in two hollow longerons of corresponding front vehicle frame.The inner side of described girder steel has a tooth bar and square groove respectively, and tooth bar is used for coordinating miniature gears to reach transmission object, and square groove is used for settling gear wheel shaft.
The length of described electric automobile frame can regulate arbitrarily within the specific limits, and its main process extends and shortens, and when described vehicle frame shortens, the girder steel of Rear frame inserts the rear end of front vehicle frame; When described vehicle frame extends, the stretching structure girder steel upluging part length that Rear frame connects, realizes the object of extending.
Described front vehicle frame, Rear frame are formed by the crossbeam of square steel material and longitudinal beam welding.Described girder steel adopts square cold-bend hollow profiled bar material, passes through welding production.
In line needle bearing is provided with, for reducing friction force when vehicle frame stretches between the face that described front vehicle frame contacts with Rear frame.
Said gear rack-and-pinion automatically retractable small-sized electric vehicle vehicle frame, defines a sleeve mechanism, strengthens the rigidity of vehicle frame between front vehicle frame and Rear frame, can ensure no matter vehicle frame keeps as a whole in elongation and shortening state total energy.
The beneficial effects of the utility model: the body frame structure for automotive adopting edge-beam type, has the advantages that structure is simple, rigidity is large; Simultaneously the structure that can stretch is arranged to by vehicle frame, full car length can be changed as required, automobile is met the different needs, and between front vehicle frame and Rear frame, with the addition of a sleeve mechanism, make vehicle frame no matter keep as a whole in elongation and shortening state total energy, ensure the dependable performance of flexible vehicle frame; Break through traditional Vehicle Frame Design thinking, retractility is combined with automobile chassis frame, have wide development space in future automobile market; Vehicle frame length can regulate arbitrarily within the specific limits, can repack passenger vehicle into as required, load carrying vehicle etc. temporarily, is applicable to multiple practical matter.。
Accompanying drawing explanation
Figure 1 shows that front frame structure;
Figure 2 shows that rear cycle frame structure;
Figure 3 shows that stretching structure partial view;
Figure 4 shows that front/rear frame shortens the assembly drowing of state;
Figure 5 shows that the assembly drowing of front/rear frame elongation state.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model will be further described:
In figure: (1,4,19,20,21,22)-hollow longeron, (2,3,5,17,23)-crossbeam, 6-electrical motor, 7-gear, 8-toothed disc, (9,11)-gear wheel shaft, 10-miniature gears, 12-square groove, 13-tooth bar, (14,15)-girder steel, (16,18)-round bar.
A kind of pinion and-rack automatically retractable small-sized electric electric automobile frame as shown in the figure, adopts straight frame.
Front vehicle frame is combined by hollow longeron 1,4 and crossbeam 2,3,5.Miniature gears 10 is fixed on hollow longeron 1,4 rear end by gear wheel shaft 9, and gear wheel shaft 9 midway location is connected with toothed disc 8, and crossbeam 5 is used for placing electrical motor 6.
Rear frame is hollow longeron 19,22, round bar 16,18, and two crossbeams 17,23 combine, and the girder steel 14,15 extended out is stretching structures of vehicle frame.The inner side of girder steel 14,15 has a tooth bar 13 and square groove 12 respectively, and tooth bar 13 is used for coordinating miniature gears 10 to reach transmission object, and square groove 12 is used for settling gear wheel shaft 11.
Miniature gears 10 is fixed by gear wheel shaft 9 and hollow longeron 1,4, and represent for convenience of understanding on tooth bar 13 by the miniature gears 10 in Fig. 3, gear wheel shaft 9 end is connected with square groove 12.
When vehicle frame shortens, by electrical motor 6 driven gear 7, gear 7 driven gear dish 8, toothed disc 8 and gear wheel shaft 9 are fixed together, thus drive miniature gears 10 and tooth bar 13 engaged transmission, drive Rear frame to advance, girder steel 14,15 injects hollow longeron 4,1(symmetrical structure respectively).When miniature gears 10 is just in the rearmost end of tooth bar 13, vehicle frame is the shortest.
When vehicle frame needs to extend, rotate by electrical motor 6 contrarotation driven gear 7, gear 7 driven gear dish 8, toothed disc 8 and gear wheel shaft 9 consolidation, thus make miniature gears 10 and tooth bar 13 engaged transmission, drive Rear frame to retreat, girder steel 14,15 is drawn out hollow longeron 1,4.Gear wheel shaft 9 is dead by the card sentry post at square groove 12 two ends, to make the flexible front and back of vehicle frame be stuck.
In this vehicle frame, hollow longeron 1,4 rear portion is bent downwardly, thus reduces the center of gravity of vehicle.Crossbeam 2,3 narrower, be front suspension mounting rail, vehicle frame front end is narrower is that turning performance is good in order to make wheel have larger drift angle.
Round bar 16,18 and crossbeam 17 are fixed together, and insert in front vehicle frame crossbeam 5, play the effect of load-bearing, prevent vehicle frame telescopic section from rupturing because stress is excessive time flexible with bearing fit.
Rear frame hollow longeron 19,22 K/UP part, makes back axle have larger upper bullet space, is conducive to vehicle riding comfort.Hollow longeron 20,21 and crossbeam 23 form net structure, are used for settling the drive systems such as battery motor.
Adopt the vehicle frame of above-mentioned edge-beam type, vehicle frame is arranged to the structure of pinion and-rack automatically retractable, and the expanding-contracting action of vehicle frame is realized by rack pinion system, full car length can be changed as required, meet different demands under different situations to enable electronlmobil.
Claims (7)
1. a pinion and-rack automatically retractable small-sized electric vehicle vehicle frame, is characterized in that: use straight frame, comprise former and later two vehicle frames, front vehicle frame fixed gear wheel, Rear frame fixes the tooth bar coordinated with gear; Described front vehicle frame, Rear frame are in same level, provide power with front and back movement mutually by electrical motor driven gear tooth bar.
2. pinion and-rack automatically retractable small-sized electric vehicle vehicle frame according to claim 1, it is characterized in that, described front vehicle frame is made up of hollow longeron (1,4) and crossbeam (2,3,5), electrical motor (6) is connected with crossbeam (5), motor reel connects gear (7), gear (7) connects toothed disc (8), toothed disc (8) and gear wheel shaft (9) consolidation, and gear wheel shaft (9) is provided with miniature gears (10); The hollow longeron of described front vehicle frame (1,4) rear portion is bent downwardly, and crossbeam (2,3) is narrower.
3. pinion and-rack automatically retractable small-sized electric vehicle vehicle frame according to claim 1, it is characterized in that, described Rear frame has hollow longeron (19,20,21,22), round bar (16,18) and crossbeam (17,23) to be welded, front vehicle frame crossbeam (5) is upper porose, and this hole coordinates with round bar (16,18); The hollow longeron of described Rear frame (19,22) K/UP part; Described Rear frame also comprises two girder steels (14,15) stretched out, and is inserted in respectively in two hollow longerons (4,1) of corresponding front vehicle frame.
4. pinion and-rack automatically retractable small-sized electric vehicle vehicle frame according to claim 3, it is characterized in that, the inner side of described girder steel (14,15) has a tooth bar (13) and square groove (12) respectively, tooth bar (13) is used for coordinating miniature gears (10) to reach transmission object, and square groove (12) is used for settling gear wheel shaft (11).
5. the pinion and-rack automatically retractable small-sized electric vehicle vehicle frame according to any one of claim 1-4, it is characterized in that: described vehicle frame can extend and shorten, when vehicle frame extends, the rear end of the hollow longeron of front vehicle frame (1,4) and the girder steel (14,15) of Rear frame partially overlap; When vehicle frame shortens, hollow longeron (1,4) and the Rear frame girder steel (14,15) of front vehicle frame coincide together completely.
6. pinion and-rack automatically retractable small-sized electric vehicle vehicle frame according to claim 1, is characterized in that: be provided with in line needle bearing between the face that described front vehicle frame contacts with Rear frame.
7. pinion and-rack automatically retractable small-sized electric vehicle vehicle frame according to claim 3, is characterized in that: described girder steel (14,15) adopts square cold-bend hollow profiled bar material, passes through welding production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520823267.0U CN205059733U (en) | 2015-10-23 | 2015-10-23 | Rack and pinion formula small -size electric automobile frame that can stretch out and draw back automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520823267.0U CN205059733U (en) | 2015-10-23 | 2015-10-23 | Rack and pinion formula small -size electric automobile frame that can stretch out and draw back automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205059733U true CN205059733U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520823267.0U Expired - Fee Related CN205059733U (en) | 2015-10-23 | 2015-10-23 | Rack and pinion formula small -size electric automobile frame that can stretch out and draw back automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205059733U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108909840A (en) * | 2018-08-10 | 2018-11-30 | 深圳市德塔防爆电动汽车有限公司 | Adapt to the electric car of thin layer operation |
| CN110435767A (en) * | 2019-08-05 | 2019-11-12 | 南京工程学院 | A kind of electric automobile frame that wheelbase is variable |
| CN110843920A (en) * | 2019-12-17 | 2020-02-28 | 东风商用车有限公司 | Tractor frame assembly with variable cross-section longitudinal beam and forming process of variable cross-section longitudinal beam |
| CN112265581A (en) * | 2020-10-22 | 2021-01-26 | 清华大学 | Connecting mechanism and inverted omega-shaped combined frame |
-
2015
- 2015-10-23 CN CN201520823267.0U patent/CN205059733U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108909840A (en) * | 2018-08-10 | 2018-11-30 | 深圳市德塔防爆电动汽车有限公司 | Adapt to the electric car of thin layer operation |
| CN110435767A (en) * | 2019-08-05 | 2019-11-12 | 南京工程学院 | A kind of electric automobile frame that wheelbase is variable |
| CN110435767B (en) * | 2019-08-05 | 2021-05-18 | 南京工程学院 | Electric automobile frame with variable axle distance |
| CN110843920A (en) * | 2019-12-17 | 2020-02-28 | 东风商用车有限公司 | Tractor frame assembly with variable cross-section longitudinal beam and forming process of variable cross-section longitudinal beam |
| CN112265581A (en) * | 2020-10-22 | 2021-01-26 | 清华大学 | Connecting mechanism and inverted omega-shaped combined frame |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20161023 |