CN103895596B - Heavy goods vehicles pinion and-rack secondary rear - Google Patents
Heavy goods vehicles pinion and-rack secondary rear Download PDFInfo
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- CN103895596B CN103895596B CN201410155162.2A CN201410155162A CN103895596B CN 103895596 B CN103895596 B CN 103895596B CN 201410155162 A CN201410155162 A CN 201410155162A CN 103895596 B CN103895596 B CN 103895596B
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Abstract
The invention discloses a kind of heavy goods vehicles pinion and-rack secondary rear, be intended to solve prior art and there is the fragile inefficacy of rear protecting, rear car easily pierces, weight is large, the problem that cost is high, this device comprises a protecting device frame, main protection driving-shaft assembly, secondary protection driving-shaft assembly, main protection slideway assembly, main protection rear bumper assembly, secondary protection rear bumper assembly, sensor controller assembly and dual-output motor, heavy goods vehicles pinion and-rack intelligence secondary rear of the present invention adopts stepping motor and mechanical drive to heavy car owner, secondary rear bumper controls, adopt gear transmission, the Driving Torque of dual-output motor is applied to master by rack pinion respectively, secondary protection rear bumper, and control its straight-line motion, the terrain clearance of rear protecting can be regulated according to actual condition, this rear is sturdy and durable, life-span is long, structure is simple, easy for installation, cost is lower, be easy to the marketization.
Description
Technical field
The present invention relates to a kind of secondary rear on vehicle, or rather, the present invention relates to a kind of heavy goods vehicles pinion and-rack secondary rear.
Background technology
At present, both at home and abroad about the research of heavy-duty vehicle rear, mainly based on Purely mechanical rear, itself and heavy goods vehicles Rear frame are for being rigidly connected, it not only affects the crossing ability of heavy goods vehicles, can sail because of vehicle is up on severe ground the damage causing rear again, its good safeguard function cannot be ensured.In addition, because the rear protecting distance ground of heavy-duty vehicle is higher, when the vehicle of the type such as car or cross-country car and heavy goods vehicles knock into the back, easily causes the vehicle such as car or cross-country car " to pierce " heavy goods vehicles rear overhang part, cause great injures and deaths.Meanwhile, the basis of the test test cell of the adjustable rear protecting of existing heavy goods vehicles pinion and-rack is improved, design heavy goods vehicles pinion and-rack secondary rear.
Adopt electromechanical integration technology both can ensure collision time front vehicle safety, the crossing ability of vehicle can be improved again, protection vehicle when normally travelling, its rear not easily damages.Current Some vehicles rear, can't by the relevant laws and regulations of vehicle rear protecting.In addition, the adjustable vehicle rear protecting based on electromechanical integration developed at present, its cost is higher, and weight is comparatively large, also not easily universal and popularization.Above-mentioned phenomenon creates adverse effect for the life-span of vehicle safety, rear and the crossing ability of vehicle.
Summary of the invention
Technical matters to be solved by this invention overcomes the problem that prior art exists the fragile inefficacy of rear protecting, rear car easily pierces, weight is large, cost is high, provide a kind of heavy goods vehicles pinion and-rack secondary rear, this device according to the application rear overhang length of vehicle and the longitudinal length of this protective device of height adjustment and rear bumper terrain clearance, can also be applied in all heavy goods vehicles.
For solving the problems of the technologies described above, the present invention adopts following scheme to realize:
A kind of heavy goods vehicles pinion and-rack secondary rear of the present invention, comprise a protecting device frame, there is supporting plate at the middle part of protecting device frame, protecting device frame front and rear top is separately installed with front attached plate and rear attached plate, it is characterized in that described heavy goods vehicles pinion and-rack secondary rear also comprises main protection driving-shaft assembly, secondary protection driving-shaft assembly, main protection slideway assembly, main protection rear bumper assembly, secondary protection rear bumper assembly, sensor controller assembly and dual-output motor motor.Dual-output motor is arranged on supporting plate midway location, the rear mouth of dual-output motor is connected with No. 1 imput shaft in main protection driving-shaft assembly, No. 1 driving shaft gear in No. 1 imput shaft engages with No. 1 countershaft-gear on right side, No. 1 countershaft-gear opposite side engages with No. 2 driven shaft gears on No. 2 driven shafts, No. 2 driving shaft gears in No. 1 imput shaft engage with No. 1 driven shaft gear on No. 1 driven shaft, the axis body of No. 1 driven shaft and No. 2 driven shafts is also equipped with No. 1 lifter wheel and No. 2 lifter wheels respectively through rear attached plate outside rear attached plate, No. 1 lifter wheel and No. 2 lifter wheels engage with No. 1 driving rack in main protection slideway assembly and No. 2 driving racks respectively, fix respectively by the left pipe link of main protection rear bumper and the right pipe link of main protection rear bumper and main protection rear bumper outside No. 1 driving rack and No. 2 driving racks, the front mouth of dual-output motor is connected with secondary No. 2 imput shaft of protecting in driving-shaft assembly, No. 3 driving shaft gears in No. 2 imput shaft engage with No. 2 countershaft-gears on right side, No. 2 countershaft-gear opposite sides engage with No. 4 driven shaft gears on No. 4 driven shafts, No. 3 driving shaft gears in No. 2 imput shaft engage with No. 3 driven gears on No. 3 driven shafts, the axis body of No. 3 driven shafts and No. 4 driven shafts is also equipped with No. 3 lifter wheels and No. 4 lifter wheels respectively through front attached plate outside front attached plate, No. 3 lifter wheels and No. 4 lifter wheels protect No. 3 driving racks in slideway assembly respectively with pair and No. 4 driving racks engage, protect rear bumper by the left pipe link of secondary protection rear bumper and the right pipe link of secondary protection rear bumper fix with secondary outside No. 3 driving racks and No. 4 driving racks, in described sensor controller assembly, radar is arranged in the middle part of rear attached plate, motor driver is arranged on the right side of dual-output motor, controller is on the right side of motor driver, motor driver and controller are fixedly mounted on supporting plate, the signal input terminal of controller is connected with radar signal lead-out terminal, controller signals lead-out terminal is connected with the signal input terminal of motor driver, the signal output terminal of motor driver is connected with dual-output motor signal input terminal.
Further technical scheme comprises: the rear mouth of described dual-output motor is connected with No. 1 imput shaft by No. 1 plum coupling, and the front mouth of dual-output motor is connected with No. 2 imput shaft by No. 2 plum couplings.
In described main protection slideway assembly, the left slideway of main protection is fixed by bolts in the left protective folder of main protection, and the left protective folder of main protection is fixed by bolts in rear attached plate; The right slideway of main protection is fixed by bolts in the right protective folder of main protection, and the right protective folder of main protection is fixed by bolts in rear attached plate;
In described pair protection slideway assembly, the left slideway of secondary protection is fixed by bolts in the left protective folder of secondary protection, and the left protective folder of secondary protection is fixed by bolts in front attached plate; The right slideway of secondary protection is fixed by bolts in the right protective folder of secondary protection, and the right protective folder of secondary protection is fixed by bolts in front attached plate;
Compared with prior art the invention has the beneficial effects as follows:
1. heavy goods vehicles pinion and-rack secondary rear of the present invention adopts stepping motor and mechanical drive to control heavy car owner, secondary rear bumper, and then can regulate the terrain clearance of rear protecting according to actual condition.
2. heavy goods vehicles pinion and-rack secondary rear of the present invention is sturdy and durable, and the life-span is long.
3. heavy goods vehicles pinion and-rack secondary rear structure of the present invention is simple, easy for installation.In addition, the cost of pinion and-rack of the present invention is adjustable vehicle secondary rear is lower, is easy to the marketization.
4. heavy goods vehicles pinion and-rack secondary rear of the present invention is safe and reliable, and the output signal of stepping motor is highly sensitive, and precision is high.
5. the linkage section of heavy goods vehicles pinion and-rack secondary rear of the present invention according to the rear overhang length of vehicle used and highly can be transformed, and transformation process is convenient and simple, applied range.
6. heavy goods vehicles pinion and-rack secondary rear of the present invention have early warning, test, demonstration more multi-functional, both may be used for the performance of testing vehicle rear, also may be used for teaching demonstration teaching aid.
7. heavy goods vehicles pinion and-rack secondary rear of the present invention adopts the start-stop of step motor control mechanism, and the Driving Torque of motor is applied to major and minor protection rear bumper, and controls its straight-line motion by employing gear transmission, rack pinion respectively.This structure can be used for using in the machinery needing this type of to change, and has stronger replicability.
8. heavy goods vehicles pinion and-rack secondary rear of the present invention, the major and minor protection rear bumper of employing is bionical bumper/spoiler, compares the existing rectangular beam bumper/spoiler performance generally applied in heavy goods vehicles better, low price.
Accompanying drawing explanation
Fig. 1 is the axonometric projection graph of heavy goods vehicles pinion and-rack secondary rear structure of the present invention composition;
Fig. 2 is the birds-eye view of heavy goods vehicles pinion and-rack secondary rear structure of the present invention composition;
Fig. 3 is the assembly relation schematic diagram of No. 1 driven shaft and No. 1 driven gear and No. 1 lifter wheel in heavy goods vehicles pinion and-rack secondary rear of the present invention, No. 2 driven shafts and No. 2 driven gears and No. 2 lifter wheels;
Fig. 4 rotates the axonometric projection graph of 180 ° relative to Fig. 3;
The assembly relation schematic diagram of No. 1 imput shaft and No. 2 imput shaft and dual-output motor in Fig. 5 heavy goods vehicles pinion and-rack of the present invention secondary rear;
Fig. 6 is No. 1 tween drive shaft and No. 1 countershaft-gear assembly relation schematic diagram in heavy goods vehicles pinion and-rack secondary rear of the present invention;
Fig. 7 is the axonometric projection graph of main skid assembly and main protection rear bumper assembly structure composition in heavy goods vehicles pinion and-rack secondary rear of the present invention;
Fig. 8 is the axonometric projection graph of sensor controller assembly composition in heavy goods vehicles pinion and-rack secondary rear of the present invention
Fig. 9 is that the axonometric projection graph of sensor controller assembly composition in heavy goods vehicles pinion and-rack secondary rear of the present invention rotates 180 ° of axonometric projection graphs relative to Fig. 8
Figure 10 is the axonometric projection graph of secondary protection slideway assembly and secondary protection rear bumper assembly structure composition in heavy goods vehicles pinion and-rack secondary rear platform of the present invention;
In figure: 1. protecting device frame, 2. supporting plate, 3. attached plate after, 4. front attached plate, 5. dual-output motor, 6. motor driver, 7. controller, No. 8.1 driven shaft gears, No. 9.1 lifter wheels, 10.1 number driven shaft, 11.1 number plum coupling, 12.1 number driving shaft gear, 13.1 number imput shaft, 14.2 number driving shaft gear, 15.1 number countershaft-gear, 16.1 number tween drive shaft, 17.2 number driven shaft, 18.2 number lifter wheel, 19.2 number driven shaft gear, 20.1 number driving rack, the left slideway of 21. main protection, the left protective folder of 22. main protection, 23.2 number driving rack, the right slideway of 24. main protection, the right protective folder of 25. main protection, 26. main protection rear bumpers, the left pipe link of 27. main protection rear bumper, the right pipe link of 28. main protection rear bumper, 29.3 number driven shaft, 30.3 number driven shaft gear, 31.3 number lifter wheel, 32.2 number main driving axle, 33.2 number plum coupling, 34.3 number driving shaft gear, 35.4 number driving shaft gear, 36.2 number tween drive shaft, 37.2 number countershaft-gear, 38.4 number driven shaft, 39.4 number driven shaft gear, 40.4 number lifter wheel, 41.3 number driving rack, the left slideway of 42. secondary protection, the left protective folder of 43. secondary protection, 44.4 number driving rack, the right slideway of 45. secondary protection, the right protective folder of 46. secondary protection, 47. secondary protection rear bumpers, the left pipe link of 48. secondary protection rear bumper, the right pipe link of 49. secondary protection rear bumper, 50. radars.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is explained in detail:
Consult Fig. 1 and Fig. 2, heavy goods vehicles pinion and-rack secondary rear of the present invention comprises a protecting device frame 1, main protection driving-shaft assembly, secondary protection driving-shaft assembly, main protection slideway assembly, main protection rear bumper assembly, secondary protection slideway assembly, secondary protection rear bumper assembly, sensor controller assembly and dual-output motor 5, the middle part of described protecting device frame 1 is provided with supporting plate 2, supporting plate 2 is all a rectangular plate, respectively cuts a square at its corner place.Protecting device frame 1 front and rear is separately installed with front attached plate 4 and rear attached plate 3.Rear attached plate 3 and front attached plate 4 all have the hole of 2 diameter 200mm, corner edge have 4 apertures be conveniently fixed on after in attached plate 3, rear attached plate 3 comparatively before attached plate 4 opened 4 apertures at center position more and facilitated fixed radar 50.
Consult Fig. 3 and Fig. 4, No. 1 driven shaft gear 8 and No. 2 driven shaft gears 19 to be moduluses be 3.5 straight gear, and centre hole has been driven keyway; No. 1 driven shaft 10 and No. 2 driven shafts 17 are stepped shaft, bearing torque transferring power;
The front end face of shaft shoulder assembly unit No. 1 driven shaft gear 8, sleeve, bearing, bearing successively on No. 1 driven shaft 10, and ensure that its end contact connects, then bearing is fixed on supporting plate 2 upper left side; The aft end face place of shaft shoulder assembly unit sleeve, bearing, bearing successively on No. 1 driven shaft 10, and ensure that its end contact connects, bearing model be M6 be bolted on rear attached plate 3 PATENT left side via front end face, finally No. 1 lifter wheel 9 is arranged on No. 1 driven shaft 10, ensure that No. 1 lifter wheel 9 has 1cm gap with rear attached plate 3 in the axial direction, axle head model is that outer-hexagonal M30 nut is fixed.No. 2 driven shaft gears 19 and No. 1 countershaft-gear 15 engage.The front end face of shaft shoulder assembly unit No. 2 driven shaft gears 19, sleeve, bearing, bearings successively on No. 2 driven shafts 17, and ensure that its end contact connects, then be that bearing is fixed on right side on supporting plate 2 by the bolt of M6 by model.The aft end face place of shaft shoulder assembly unit sleeve, bearing, bearing successively on No. 2 driven shafts 17, and ensure that its end contact connects, bearing model be M6 to be bolted on the right side of rear attached plate 3 on through hole front end face, finally No. 2 lifter wheels 18 are arranged on No. 2 driven shafts 17, ensure that No. 2 lifter wheels 18 have 1cm gap with rear attached plate 3 in the axial direction, axle head model is that outer-hexagonal M30 nut is fixed.
The front end face of shaft shoulder assembly unit No. 3 driven shaft gears 30, sleeve, bearing, bearings successively on No. 3 driven shafts 29, and ensure that its end contact connects, then bearing is fixed on supporting plate 2 upper left side; The aft end face place of shaft shoulder assembly unit sleeve, bearing, bearing successively on No. 3 driven shafts 29, and ensure that its end contact connects, bearing model be M6 be bolted on front attached plate 4 PATENT left side via front end face, finally No. 3 lifter wheels 31 are arranged on No. 3 driven shafts 29, ensure that No. 3 lifter wheels 31 have 1cm gap with front attached plate 4 in the axial direction, axle head model is that outer-hexagonal M30 nut is fixed.No. 4 driven shaft gears 39 and No. 2 countershaft-gears 37 engage.The front end face of shaft shoulder assembly unit No. 4 driven shaft gears 39, sleeve, bearing, bearings successively on No. 4 driven shafts 38, and ensure that its end contact connects, then be that bearing is fixed on right side on supporting plate 2 by the bolt of M6 by model.The aft end face place of shaft shoulder assembly unit sleeve, bearing, bearing successively on No. 4 driven shafts 38, and ensure that its end contact connects, bearing model be M6 to be bolted on the right side of front attached plate 4 on through hole front end face, finally No. 4 lifter wheels 40 are arranged on No. 4 driven shafts 38, ensure that No. 4 lifter wheels 38 have 1cm gap with front attached plate 4 in the axial direction, axle head model is that outer-hexagonal M30 nut is fixed.
Consult Fig. 5, the model of dual-output motor 5 is BSHB364, and motor support base is a non-symmetrical U plate, opens a large through-hole and around it, open 4 apertures in the center of long slab upper end, convenient fixing dual-output motor 5; No. 1 imput shaft 13 and No. 2 imput shaft 33 are stepped shaft, have 3 keyways, are convenient to fixed gear wheel and are connected dual-output motor 5.No. 1 plum coupling 11 with No. 2 plum coupling 33 structure is identical and model is all BF1_16x19; The model of bearing is all 30208 deep groove ball bearings.
In described sensor controller assembly, dual-output motor 5 is arranged on motor support base, and is that motor base is fixed on midway location on supporting plate 2 by the bolt of M6 by model, finally guarantees that No. 1 imput shaft 13, No. 2 imput shaft 32, dual-output motor 5 are coaxial.In No. 1 imput shaft 13, the front end face place of the shaft shoulder assembles No. 1 driving shaft gear 12, sleeve, bearing, bearing successively, and ensures that its end contact connects, then bearing is fixed on the dead aft of dual-output motor 5 on supporting plate 2 with the bolt of M6; Dual-output motor 5 rear output shaft is connected by No. 1 plum coupling 11 with No. 1 imput shaft 13 again.In No. 1 imput shaft 13, the aft end face place of the shaft shoulder assembles No. 2 driving shaft gears 14, sleeve, bearing, bearings successively, and ensures that its end contact connects, then bearing is fixed on the dead aft of dual-output motor 5 on supporting plate 2 with the bolt of M6.In No. 2 imput shaft 32, the aft end face place of the shaft shoulder assembles No. 3 driving shaft gears 34, sleeve, bearing, bearings successively, and ensures that its end contact connects, then bearing is fixed on the dead ahead of dual-output motor 5 on supporting plate 2 with the bolt of M6; Dual-output motor 5 front output shaft is connected by No. 2 plum couplings 33 with No. 2 imput shaft 32 again.In No. 2 imput shaft 32, the front end face place of the shaft shoulder assembles No. 4 driving shaft gears 35, sleeve, bearing, bearings successively, and ensures that its end contact connects, then bearing is fixed on the dead ahead of dual-output motor 5 on supporting plate 2 with the bolt of M6.
Consult Fig. 6, No. 1 tween drive shaft 16 is stepped shaft having keyway; No. 1 countershaft-gear 15 to be moduluses be 3.5 straight gear; The model of the bearing of No. 1 tween drive shaft 16 is all deep groove ball bearings of 30208; No. 2 tween drive shafts 36 are identical with No. 1 tween drive shaft 16; No. 2 countershaft-gears 37 are identical with No. 1 countershaft-gear 15; The model of the bearing of No. 2 tween drive shafts 36 is all deep groove ball bearings of 30208.
No. 1 countershaft-gear 15 and No. 1 driving shaft gear 12 engage.The front end face place of No. 1 tween drive shaft 16 shaft shoulder assembles sleeve, bearing, bearing, end cap successively, and ensures that its end contact connects, then with the bolt of M6, bearing is fixed on right side on supporting plate 2; The aft end face place of No. 1 tween drive shaft 16 shaft shoulder assembles No. 1 countershaft-gear 15, sleeve, bearing, bearing, end cap successively, and ensures that its end contact connects, then is that bearing is fixed on right side on supporting plate 2 by the bolt of M6 by model.No. 2 countershaft-gears 37 and No. 3 driving shaft gears 34 engage.The aft end face place of No. 2 tween drive shaft 36 shaft shoulders assembles sleeve, bearing, bearing, end cap successively, and ensures that its end contact connects, then with the bolt of M6, bearing is fixed on right side on supporting plate 2; The front end face place of No. 2 tween drive shaft 36 shaft shoulders assembles No. 2 countershaft-gears 37, sleeve, bearing, bearing, end caps successively, and ensures that its end contact connects, then is that bearing is fixed on right side on supporting plate 2 by the bolt of M6 by model.
Main protection slideway assembly and main protection rear bumper assembly are by the left protective folder of main protection 22, the left slideway of main protection 21, No. 1 driving rack 20, No. 2 driving racks 23, the right slideway of main protection 24, the right protective folder of main protection 25, main protection rear bumper 26, tooth bar and the left pipe link of main protection rear bumper 27, tooth bar and the right pipe link 28 of main protection rear bumper.
In main protection slideway assembly and main protection rear bumper assembly, the left protective folder of main protection 22, the right protective folder of main protection 25 are all non-symmetrical U-board; The left slideway of main protection 21, the right slideway 24 of main protection have the rectangle frame of 40 groups of cylinder small rollers in being all; The left pipe link of main protection rear bumper 27 and the right pipe link of main protection rear bumper 28 are all the 30*30 section bars of long 365mm; The modulus of No. 1 driving rack 20 and No. 2 driving racks 23 is all 3.5, is satisfied installation needs, has aperture at the opposite side of tooth.The model of the corner fittings connected is 003.QJY3030-90.
The left slideway of main protection 21 bolt that model is M6 is fixed in the left protective folder 22 of main protection, ensures that No. 1 driving rack 20 and No. 1 lifter wheel 9 are meshed, then by left for main protection protective folder 22 with model be M6 be bolted in rear attached plate 3; The left pipe link 27 of main protection rear bumper is connected by corner fittings with No. 1 driving rack 20; The right slideway of main protection 24 bolt that model is M6 is fixed in the right protective folder 25 of main protection, ensures that No. 2 driving racks 23 and No. 2 lifter wheels 18 are meshed, then by right for main protection protective folder 25 with model be M6 be bolted in rear attached plate 3; The right pipe link 28 of main protection rear bumper and No. 2 driving racks 23 are fixed by corner fittings; Main protection rear bumper 26 is fixed by corner fittings with the left pipe link of main protection rear bumper 27 and the right pipe link 28 of main protection rear bumper respectively.
Secondary protection slideway assembly and secondary protection rear bumper assembly protect left protective folder 43 by pair, the left slideway of secondary protection 42, No. 3 driving racks 41, the right slideway of secondary protection 45, No. 4 driving racks 44, the right protective folder 46 of secondary protection, secondary protection rear bumper 47, tooth bar protect the right pipe link 49 of rear bumper form with the secondary left pipe link of rear bumper 48, tooth bar and the pair of protecting.
In pair protection slideway assembly and main protection rear bumper assembly, the left protective folder 43 of secondary protection, the right protective folder 46 of secondary protection are all non-symmetrical U-board; It is the rectangle frame of 40 groups of cylinder small rollers in the left slideway 42 of secondary protection, the right slideway 45 of secondary protection; The left pipe link of secondary protection rear bumper 48 and the right pipe link of secondary protection rear bumper 49 are all the 30*30 section bars of long 365mm; The modulus of No. 3 driving racks 41 and No. 4 driving racks 44 is all 3.5, is satisfied installation needs, has aperture at the opposite side of tooth.The model of the corner fittings connected is 003.QJY3030-90.
Secondary protection left slideway 42 bolt that model is M6 is fixed in secondary protection in left protective folder 43, ensures that No. 3 driving racks 41 and No. 3 lifter wheels 31 are meshed, then pair is protected left protective folder 43 model be M6 be bolted in front attached plate 4; The left pipe link 48 of secondary protection rear bumper is connected by corner fittings with No. 3 driving racks 41; Secondary protection right slideway 45 bolt that model is M6 is fixed in secondary protection in right protective folder 46, ensures that No. 4 driving racks 44 and No. 4 lifter wheels 40 coordinate, then pair is protected right protective folder 46 model be M6 be bolted in front attached plate 4; The secondary protection right pipe link 49 of rear bumper and No. 4 driving racks 44 are fixed by corner fittings; Secondary protection rear bumper 47 protects left pipe link 48 respectively with pair and the right pipe link 49 of secondary protection is fixed by corner fittings.
Consult Fig. 8 and Fig. 9, described sensor controller assembly is made up of radar 50, dual-output motor 5, motor driver 6 and controller 7;
The model of the radar 50 in sensor controller assembly is DELPHIESR high-frequency electronic scanned radars, and emission band is 76-77GHz.This radar has middle distance and remote scan capability simultaneously, and refresh rate is 50 milliseconds, and wherein the maximum detecting distance of middle distance is 50m, and accuracy rate is ± 0.25m, and relative velocity scope is-100 to 25m/s, and accuracy rate is ± 0.12m/s; Long is 100m apart from maximum detecting distance, and accuracy rate is ± 0.5m, and relative velocity scope is-100 to 25m/s, and accuracy rate is ± 0.12m/s.The model of dual-output motor 5 is BSHB364, the Driving Torque while of before and after can meeting.The model of motor driver 6 is 3M2060, drives dual-output motor 5 to rotate;
Radar 50 is fixed by bolts to rear attached plate 3 midway location, and the front and back output shaft of dual-output motor 5, No. 1 imput shaft 13 and No. 2 main driving axles 32 are coaxial; Motor driver 6 and controller 7 are arranged on the right side of supporting plate 2.The signal input terminal of controller 7 is connected with radar 50 signal output terminal, and controller 7 signal output terminal is connected with the signal input terminal of motor driver 6, and the signal output terminal of motor driver 6 is connected with dual-output motor 5 signal input terminal.
Contrast accompanying drawing to be below further described the function of each parts of the present invention and principle of work.
Consult Fig. 1 and Fig. 2, consider from traffic safety angle, when Ben Che and front vehicle spacing are less than 20m, reduce the terrain clearance of main protection rear bumper 26 and secondary protection rear bumper 47 simultaneously; And when being greater than 20m with front vehicle spacing simultaneously the relative speed of a motor vehicle of two cars is less than 10m/s, increase the terrain clearance of main protection rear bumper 26 and secondary protection rear bumper 47, and utilize C to write corresponding rear protecting bumper height regulable control algorithm.Micro controller system is utilized to download in controller 7 by the height regulable control algorithm routine write in advance, in actual driving conditions, radar 50 is monitored and front vehicle spacing, controller 7 receives the signal that radar 50 gathers, and control the motor driver 6 that model is 3M2060, rotate to drive dual-output motor 5.The rotation of dual-output motor 5 drives the motion of 2 groups of mechanisms:
One, the rear portion output shaft of dual-output motor 5 drives No. 1 driving shaft gear 12, No. 2 driving shaft gears 14 be assemblied in No. 1 imput shaft 13 to rotate along own axes by the plum coupling 11 that model is BF1_16x19; No. 1 driving shaft gear 12 drives No. 1 countershaft-gear 15 to rotate along himself axis by the engaged transmission of gear, No. 1 countershaft-gear 15 drives No. 2 driven shaft gears 19 along own axis by the engaged transmission of gear, and No. 2 driven shaft gears 19 drive No. 2 lifter wheels 18 along own axis by No. 2 driven shafts 17; No. 2 driving shaft gears 14 drive No. 1 driven shaft gear 8 to rotate along himself axis by the engaged transmission of gear, and No. 1 driven shaft gear 8 drives No. 1 lifter wheel 9 along own axis by No. 1 driven shaft 10.
No. 1 lifter wheel 9 engages with No. 1 driving rack 20, drives No. 1 driving rack 20 to do straight-line motion along vertical supporting plate 2 direction; No. 2 lifter wheels 18 engage with No. 2 driving racks 23, drive No. 2 driving racks 23 to do straight-line motion along vertical supporting plate 2 direction.No. 1 driving rack 20, No. 2 driving racks 23 drive main protection rear bumper 26 to be synchronized with the movement jointly, realize the height adjustable function of main protection rear bumper 26.
Its two, the front output shaft of dual-output motor 5 is that BF1_16x19 plum coupling 33 drives No. 3 driving shaft gears 34, No. 4 driving shaft gears 35 be assemblied in No. 2 imput shaft 32 to rotate along own axes by model; No. 4 driving shaft gears 35 drive No. 3 driven shaft gears 30 to rotate along himself axis by the engaged transmission of gear, and No. 3 driven shaft gears 30 drive No. 3 lifter wheels 31 along own axis by No. 3 driven shafts 29; No. 3 driving shaft gears 34 are rotated along himself axis by engaged transmission No. 2 countershaft-gears 37 of gear, No. 2 countershaft-gears 37 drive No. 4 driven shaft gears 39 along own axis by the engaged transmission of gear, and No. 4 driven shaft gears 39 drive No. 4 lifter wheels 40 along own axis by No. 4 driven shafts 38;
No. 3 lifter wheels 31 engage with No. 3 driving racks 41, drive No. 3 driving racks 41 to do straight-line motion along vertical supporting plate 2 direction; No. 4 lifter wheels 40 engage with No. 4 driving racks 44, drive No. 4 driving racks 44 to do straight-line motion along vertical supporting plate 2 direction; The last common pair protection rear bumper 47 that drives of No. 3 driving racks 41, No. 4 driving racks 44 is synchronized with the movement, and realizes secondary protection rear bumper 47 height adjustable.
Claims (4)
1. a heavy goods vehicles pinion and-rack secondary rear, comprise a protecting device frame (1), there is supporting plate (2) at the middle part of protecting device frame (1), protecting device frame (1) front and rear top is separately installed with front attached plate (4) and rear attached plate (3), it is characterized in that described a kind of heavy goods vehicles pinion and-rack secondary rear also comprises main protection driving-shaft assembly, secondary protection driving-shaft assembly, main protection slideway assembly, main protection rear bumper assembly, secondary protection rear bumper assembly, sensor controller assembly and dual-output motor (5), dual-output motor (5) is arranged on supporting plate (2) midway location, the rear mouth of dual-output motor (5) is connected with No. 1 imput shaft (13) in main protection driving-shaft assembly, No. 1 driving shaft gear (12) on No. 1 imput shaft (13) is engaged with No. 1 countershaft-gear (15) on right side, No. 1 countershaft-gear (15) opposite side engages with No. 2 driven shaft gears (19) on No. 2 driven shafts (17), No. 2 driving shaft gears (14) on No. 1 imput shaft (13) are engaged with No. 1 driven shaft gear (8) on No. 1 driven shaft (10), the axis body of No. 1 driven shaft (10) passes rear attached plate (3) and in rear attached plate (3) outside, No. 1 lifter wheel (9) is housed, the axis body of No. 2 driven shafts (17) passes rear attached plate (3) and in rear attached plate (3) outside, No. 2 lifter wheels (18) is housed, No. 1 lifter wheel (9) is engaged with No. 1 driving rack (20) in main protection slideway assembly, No. 2 lifter wheels (18) are engaged with No. 2 driving racks (23) in main protection slideway assembly, No. 1 driving rack (20) is connected with main bumper (26) by the left pipe link of main bumper (27), No. 2 driving racks (23) are connected with main bumper (26) by the right pipe link of main bumper (28), the front mouth of dual-output motor (5) is connected with secondary No. 2 main driving axles (32) of protecting in driving-shaft assembly, No. 3 driving shaft gears (34) on No. 2 imput shaft (32) are engaged with No. 2 countershaft-gears (37) on right side, No. 2 countershaft-gear (37) opposite sides engage with No. 4 driven shaft gears (39) on No. 4 driven shafts (38), No. 4 driving shaft gears (35) on No. 2 imput shaft (32) are engaged with No. 3 driven shaft gears (30) on No. 3 driven shafts (29), the axis body of No. 3 driven shafts (29) passes front attached plate (4) and in front attached plate (4) outside, No. 3 lifter wheels (31) is housed, the axis body of No. 4 driven shafts (38) passes front attached plate (4) and in front attached plate (4) outside, No. 4 lifter wheels (40) is housed, No. 3 lifter wheels (31) are engaged with secondary No. 3 driving racks (41) of protecting in slideway assembly, No. 4 lifter wheels (40) are engaged with secondary No. 4 driving racks (44) of protecting in slideway assembly, No. 3 driving racks (41) are connected with secondary bumper (47) with the right pipe link of secondary bumper (49) by the left pipe link of secondary bumper (48) with No. 4 driving racks (44), in described sensor controller assembly, radar (50) is arranged on rear attached plate (3) middle part, motor driver (6) is arranged on the right side of dual-output motor (5), controller (7) is on the right side of motor driver (6), motor driver (6) and controller (7) are fixedly mounted on supporting plate (2), the signal input terminal of controller (7) is connected with radar (50) signal output terminal, controller (7) signal output terminal is connected with the signal input terminal of motor driver (6), the signal output terminal of motor driver (6) is connected with dual-output motor (5) signal input terminal.
2. a kind of heavy goods vehicles pinion and-rack secondary rear according to claim 1, the rear mouth that it is characterized in that described dual-output motor (5) is connected by No. 1 plum coupling (11) and No. 1 imput shaft (13), and the front mouth of dual-output motor (5) passes through No. 2 plum couplings (33) and is connected with No. 2 imput shaft (32).
3. a kind of heavy goods vehicles pinion and-rack secondary rear according to claim 1, it is characterized in that in described main protection slideway assembly, the left slideway of main protection (21) is fixed by bolts in the left protective folder of main protection (22), the left protective folder of main protection (22) is fixed by bolts in rear attached plate (3); The right slideway of main protection (24) is fixed by bolts in the right protective folder of main protection (25), and the right protective folder of main protection (25) is fixed by bolts in rear attached plate (3).
4. a kind of heavy goods vehicles pinion and-rack secondary rear according to claim 1, it is characterized in that in described pair protection slideway assembly, the left slideway of secondary protection (42) is fixed by bolts in the left protective folder of secondary protection (43), the left protective folder of secondary protection (22) is fixed by bolts in front attached plate (4); The right slideway of secondary protection (45) is fixed by bolts in the right protective folder of secondary protection (46), and the right protective folder of secondary protection (46) is fixed by bolts in front attached plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155162.2A CN103895596B (en) | 2014-04-17 | 2014-04-17 | Heavy goods vehicles pinion and-rack secondary rear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155162.2A CN103895596B (en) | 2014-04-17 | 2014-04-17 | Heavy goods vehicles pinion and-rack secondary rear |
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| CN103895596A CN103895596A (en) | 2014-07-02 |
| CN103895596B true CN103895596B (en) | 2015-12-09 |
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| CN201410155162.2A Expired - Fee Related CN103895596B (en) | 2014-04-17 | 2014-04-17 | Heavy goods vehicles pinion and-rack secondary rear |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564459A (en) * | 2016-10-20 | 2017-04-19 | 吉林大学 | Double-crank slide block type heavy duty vehicle rear protector |
| CN107351795A (en) * | 2017-08-28 | 2017-11-17 | 吉林大学 | The main passive security of heavy-duty car integrates rear |
| CN108454392A (en) * | 2018-04-12 | 2018-08-28 | 青岛千钧投资企业（有限合伙） | Electric vehicle motor transmission system |
| CN108482287B (en) * | 2018-05-04 | 2023-06-06 | 吉林大学 | Automatic emergency back protection device and method |
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| DE19751451A1 (en) * | 1997-02-20 | 1998-08-27 | Steyr Nutzfahrzeuge | Rear bumper on heavy load vehicle |
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| CN103332158A (en) * | 2013-08-05 | 2013-10-02 | 孙博华 | Heavy-duty vehicle rear protection device provided with bionic rear bumper |
| CN203920656U (en) * | 2014-04-17 | 2014-11-05 | 吉林大学 | Heavy goods vehicles pinion and-rack secondary rear |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0649230U (en) * | 1992-12-16 | 1994-07-05 | 朝倉運輸株式会社 | Rear bumper for large trucks |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5632518A (en) * | 1996-04-15 | 1997-05-27 | The United States Of America As Represented By The Secretary Of The Army | Rear impact trailer guard |
| DE19751451A1 (en) * | 1997-02-20 | 1998-08-27 | Steyr Nutzfahrzeuge | Rear bumper on heavy load vehicle |
| US6116667A (en) * | 1998-01-09 | 2000-09-12 | Torcomian; Albert | Trailer underride crash guard |
| CN201423996Y (en) * | 2009-04-18 | 2010-03-17 | 甘肃中集华骏车辆有限公司 | Lifting rear protection device |
| CN203126741U (en) * | 2013-03-22 | 2013-08-14 | 孙博华 | Pinion-and-rack type adjustable rear protective device of vehicle |
| CN103332158A (en) * | 2013-08-05 | 2013-10-02 | 孙博华 | Heavy-duty vehicle rear protection device provided with bionic rear bumper |
| CN203920656U (en) * | 2014-04-17 | 2014-11-05 | 吉林大学 | Heavy goods vehicles pinion and-rack secondary rear |
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| Publication number | Publication date |
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| CN103895596A (en) | 2014-07-02 |
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Inventor after: Zhao Jian Inventor after: Su Yunfu Inventor after: Zhu Bing Inventor after: Sun Bohua Inventor after: Han Jiayi Inventor after: Shan Jingwei Inventor before: Zhao Jian Inventor before: Su Yunfu Inventor before: Zhu Bing Inventor before: Sun Bohua Inventor before: Han Jiayi Inventor before: Shan Jingwei |
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Granted publication date: 20151209 |