CN207157147U - The main passive security of heavy-duty car integrates rear - Google Patents

Abstract

The utility model discloses the main passive security of heavy-duty car to integrate rear, overcome the problem of rear protecting assembling device quality is big, low intensity and popularization are poor, it includes 1 axle assembly, 2 axle assemblies, 3 axle assemblies, 4 axle assemblies, vehicle frame framework, rear bumper, left slideway assembly and right slideway assembly, Bath and strangles camera and Delphi radar；1 axle assembly is positioned in vehicle frame framework on frame panel, and parallel within the left of 1 axle assembly, 3 axle assemblies are vertically located in front of 2 axle assemblies 2 axle assemblies, and 4 axle assemblies are on the vehicle frame front shroud of vehicle frame framework；1 axle assembly is that belt is connected with 2 axle assemblies, 2 to 4 axle assemblies connect for bevel gear, left slideway assembly, right slideway assembly and 4 axle assemblies, 1 axle assembly are followed successively by wheel and rack connection, left slideway assembly, right slideway assembly are arranged on the left and right end of vehicle frame front shroud, and rear bumper connects with left slideway assembly, right slideway assembly lower end；Bath strangles camera and Delphi radar is arranged on vehicle frame front shroud.

Description

The main passive security of heavy-duty car integrates rear

Technical field

A kind of bumper protector of automotive engineering field is the utility model is related to, more precisely, the utility model It relate to a kind of device of the integrated bumper rear protecting of the main passive security of heavy-duty car.

Background technology

At present, according to incomplete statistics, between 2007-2017, China has more than 1,000,000 passenger because traffic accident And the life of preciousness is lost, and among numerous accidents, rear-end collision is main, can account for all traffic accidents 40%, and because the number died of rear-end collision accounts for the 60% of total number of casualties, and the rear-end collision caused by heavy-duty car Also very more, the rear of Purely mechanical, to be rigidly connected, can influence the passing through property of heavy goods vehicles with Rear frame.Again because weight Type vehicle rear protecting is very high apart from ground, when car or other compact cars and heavy goods vehicles knock into the back, easily causes rear Vehicle " pierces " the rear overhang part of heavy goods vehicles, causes very big injures and deaths.

With electromechanical integration technology not only can ensure collision when front vehicle safety, vehicle can be lifted again and led to The property crossed, vehicle is safeguarded in normally travel, rear does not allow destructible.Present Some vehicles rear, also nothing The relevant laws and regulations that method passes through vehicle rear protecting.In addition, nowadays have now been developed come based on electromechanical integration can Shunt a rear, its cost is very high, and weight is very big, it is difficult to popularize and promote.Above phenomenon to the safety of vehicle, The life-span of rear generates very negative impact also by property.

The content of the invention

Technical problem to be solved in the utility model be overcome current rear protecting assembling device quality is big, intensity is relatively low, The problem of promotion prospect is poor, there is provided a kind of main passive security of heavy-duty car integrates rear.

In order to solve the above technical problems, the utility model adopts the following technical scheme that realization：

The main passive security of described heavy-duty car, which integrates rear, includes 1 axle assembly, 2 axle assemblies, 3 axle assemblies, 4 axles Assembly, vehicle frame framework, rear bumper, left slideway assembly, right slideway assembly, Bath strangle camera and Delphi radar.

Described vehicle frame framework is by vehicle frame front shroud, vehicle frame back shroud, the left longeron of vehicle frame, vehicle frame right vertical beam and vehicle frame bottom The box typed structure part of the top end opening for the cuboid that plate is formed.

1 axle assembly is arranged in vehicle frame framework on the frame panel on right side, and 2 axle assemblies are arranged on the car on the left of 1 axle assembly On frame bottom plate, the axis of rotation of 2 axles in 2 axle assemblies is parallel with the gyroaxis of 1 axle in 1 axle assembly；3 axle assemblies are arranged on On frame panel in front of 2 axle assemblies, the axis of rotation of the axis of rotation and 2 axles of 3 axles in 3 axle assemblies intersects vertically；1 axle is total The 1 axle big belt wheel in is attached with 2 axle small pulleys in 2 axle assemblies by timing belt, 2 shaft bevel gears in 2 axle assemblies Connection is engaged with 3 shaft bevel gears in 3 axle assemblies；4 axle assemblies are arranged in the PATENT left side via on vehicle frame front shroud, 4 axial cone teeth Wheel engages connection with 3 shaft bevel gears；Left slideway assembly is arranged at the front end face of vehicle frame front shroud left end, and right slideway assembly is symmetrical Ground is arranged at the front end face of vehicle frame front shroud right-hand member, and rear bumper and left slideway assembly, the lower end of right slideway assembly use spiral shell Bolt is fixedly connected；Left end lifting rack in left slideway assembly engages connection, right slideway with the 4 axles lifting gear in 4 axle assemblies Right-hand member lifting rack in assembly engages connection with the 1 axle lifting gear in 1 axle assembly；Bath strangles camera and Delphi radar On the front end face of vehicle frame front shroud, Bath strangles the top that camera is arranged on Delphi radar.

Vehicle frame front shroud, vehicle frame back shroud, the left longeron of vehicle frame described in technical scheme, vehicle frame right vertical beam is using steel The slot type structure part of U-shaped iso-cross-section made of plate punching press, the left longeron of vehicle frame front shroud, vehicle frame, vehicle frame back shroud and vehicle frame are right Longeron end to end rectangular framework successively, vehicle frame front shroud is relative with the notch of vehicle frame back shroud to be placed in parallel, vehicle frame protecgulum The PATENT left side via of 4 axles in 4 axle assemblies of installation is provided with the left of plate, is provided with the right side of vehicle frame front shroud 1 in 1 axle assembly of installation The right side through hole of axle, adjacent in rectangular frame to be fixedly connected between the two using welding manner or bolt, frame panel uses Welding manner is bolted on the bottom face of rectangular frame.

1 axle assembly described in technical scheme also includes No. 1 bearing block, 1 bracing strut, No. 1 sleeve, the 1 of model 6206 Number deep groove ball bearing, No. 2 deep groove ball bearings and 1 bearing housing rear end cap of model 6206.

No. 1 described bearing block is arranged on frame panel, and No. 1 deep groove ball bearing of model 6206 is arranged on No. 1 axle In 1 bearing hole of bearing upper end, to be fixedly connected in the right side through hole that 1 bracing strut is arranged on vehicle frame front shroud, 1 bracing strut The rotation conllinear of axis of rotation and 1 bearing hole of No. 1 bearing block upper end；No. 1 depth that the front end of 1 axle passes through model 6206 Ditch ball bearing is fitted into 1 bracing strut and stretches out vehicle frame front shroud, and the rear end of 1 axle loads the model 6206 of No. 1 bearing block upper end No. 2 deep groove ball bearings bearing hole in, 1 axle big belt wheel be sleeved on the second segment axle of 1 axle on the left of No. 1 bearing block for key connect Connect, 1 bearing housing rear end cap is arranged on the upper end of No. 1 bearing block and is fixedly connected using bolt；No. 2 sleeve sets are in 1 axle On first paragraph axle, the left side of No. 2 sleeves contacts connection with the right side of the bearing inner ring of No. 2 deep groove ball bearings, No. 2 sleeves Right side contacts the 3rd of connection, the right side of 1 axle big belt wheel and the second segment axle of 1 axle and 1 axle with the left side of 1 axle big belt wheel The shaft shoulder contact connection that section axle is formed；No. 1 sleeve set on the 4th section of axle of 1 axle, the left side of No. 1 sleeve and 1 axle 3rd section of axle contacts connection with the shaft shoulder that the 4th section of axle of 1 axle is formed, the right side of No. 1 sleeve and No. 1 deep groove ball bearing The shoulder hole institute shape of the left side contact connection of bearing inner ring, the right side of the outer race of No. 1 deep groove ball bearing and 1 bracing strut Circularize left side contact connection；The 5th section of 1 axle that 1 axle lifting gear set stretches out in the through hole on the right side of vehicle frame front shroud It is key connection on axle, the shaft shoulder that the left side of 1 axle lifting gear and the 4th section of axle of 1 axle are formed with the 5th section of axle of 1 axle connects Connection is touched, 1 axle lifting gear there are 1cm gaps with vehicle frame front shroud in the axial direction；Pacify successively vertically on 6th section of axle of 1 axle 1 axle lifting gear is fixed equipped with packing ring, pad and nut.

1 axle described in technical scheme is 6 segmentation straight-bar class multi-diameter shafts, is referred to as first paragraph axle successively from left to right to the 6th Section axle, it is less than for installing the diameter of first paragraph axle of No. 2 deep groove ball bearings and No. 2 sleeves and is used for the of 1 axle big belt wheel of installation The diameter of two sections of axles, the diameter of second segment axle are less than the diameter of the 3rd section of axle, and the diameter of the 3rd section of axle to the 6th section of axle subtracts successively It is few；The axially disposed keyway for having installation key on second segment axle, the 3rd section of axle are the optical axis of uneasy component；3rd section of axle with 4th section of shaft connection place forms the shaft shoulder for No. 1 sleeve (26) and No. 1 deep groove ball bearing (27) axially position；On 5th section of axle It is provided with the keyway for installing 1 axle lifting gear, the axially disposed external screw thread having for installing nut on the 6th section of axle.

2 axle assemblies described in technical scheme also include model YB2-100L2-4 stepper motor, driving stepper motor Device, plum coupling, 2 bearing housing rear end caps, No. 3 sleeves, No. 3 deep groove ball bearings, motor base and 2 axles of model 6206 Base；For described motor base using being bolted on frame panel, motor base is located at No. 1 bearing block in 1 axle assembly Upper left side, the axis of rotation space of 1 bearing hole of the axis of rotation of the base holes of motor base upper end and No. 1 bearing block upper end Parallel, model YB2-100L2-4 stepper motor is using the upper end for being bolted to motor base, model YB2-100L2- The output shaft of 4 stepper motor and the rear end of plum coupling connect for spline pair, the front end of plum coupling and the rear end of 2 axles Connected for spline pair, 2 axles are arranged on the bearing hole of base 2 of 2 axle base upper ends by No. 3 deep groove ball bearings of model 6206 In, 2 bearing housing rear end caps are arranged on 2 axle base upper ends, and 2 axle bases are located at the front at motor bottom seat, the gyroaxis of 2 axles The rotation conllinear of the output shaft of line and stepper motor, 2 shaft bevel gears are sleeved on the first paragraph axle of 2 axles, 2 axle small band wheel cases On 3rd section of axle of 2 axles between 2 shaft bevel gears and 2 axle bases, No. 3 sleeves are arranged on 2 axles on the right side of 2 axle small pulleys It is key connection on 4th section of axle, between 2 axle small pulleys and 2 axles.

It is identical that 3 axle assemblies described in technical scheme also include 2 the bearing housing rear end caps of structure identical 3,2 structures 3 bearing housings, model 6208 No. 5 deep groove ball bearings and model 6208 No. 4 deep groove ball bearings；Described model 6208 No. 4 deep groove ball bearings are arranged on left and right two structure identicals 3 axle of 3 axles with No. 5 deep groove ball bearings of model 6208 In the bearing hole of bearing block upper end, 2 bearing housings of structure identical 3 are symmetrically fixed on frame panel using bolt, 2 The bearing housing rear end cap of structure identical 3 is arranged on 2 bearing housing upper ends of structure identical 3 and is fixedly connected using bolt, 3 In the bearing hole of No. 4 deep groove ball bearings of the first paragraph axle insertion model 6208 of axle left end, the 4th section of axle insertion of 3 axle right-hand members In the bearing hole of No. 5 deep groove ball bearings of model 6208,3 axle assemblies are located at the front of 2 axle assemblies, the axis of rotation of 3 axles and 2 The axis of rotation of 2 axles in axle assembly intersects vertically, and 3 shaft bevel gears are sleeved on 3 between 2 bearing housings of structure identical 3 One end of axle, it is key connection between 3 shaft bevel gears and 3 axles.

4 axle assemblies described in technical scheme also include 4 shaft bevel gears, 4 axles, collar and 4 bracing struts；4 described axle branch Frame is arranged in the PATENT left side via of vehicle frame front shroud to be fixedly connected, and 4 axles are arranged in 4 bracing struts by a collar, 4 axles with It is rotation connection between 4 bracing struts, is stationary fit between collar and the right-hand member large diameter hole of 4 bracing struts, 4 axles lifting gear is arranged on 4 shaft extensions go out on the second segment axle of vehicle frame front shroud, and key connection is used between 4 axles lifting gear and the second segment axle of 4 axles, and 4 axles are lifted Rise gear and engage connection with the left end lifting rack in left slideway assembly, 4 axles lift gear in the axial direction with vehicle frame front shroud Between have 1cm gaps, 4 shaft bevel gears go out on the 3rd section of axle of vehicle frame front shroud rear end installed in 4 shaft extensions, 4 shaft bevel gears and 4 axles Between be key connection.

Left slideway assembly described in technical scheme also includes left slideway and left linking arm；Described left slideway is U-shaped etc. The slot type straight rod member of cross section, left slideway are vertically fixed on the front end face of vehicle frame front shroud left end, left slideway and right slideway Right slideway Parallel Symmetric in assembly, left slideway is relative with the notch of right slideway just, the thickness of the width and left end lifting rack of groove Spend equal, the non-toothed left end of left end lifting rack matches with the U-lag on left slideway to be combined into and is slidably connected, and left end lifts tooth The toothed right-hand member of bar engages connection with 4 axles lifting gear；The inboard front end face with left end lifting rack in the upper end of left linking arm It is fixedly connected, the front end face of the lower end of left linking arm is in contact and is fixedly connected with the rear end face of rear bumper left end.

Right slideway assembly described in technical scheme also includes right slideway and right linking arm；Described right-hand member lifting rack with Left end lifting rack structure is identical, and right slideway is identical with left slideway structure, and right linking arm is identical with left connection arm configuration；Right slideway Vertically it is fixed on the front end face of vehicle frame front shroud right-hand member, right slideway and the left slideway Parallel Symmetric in left slideway assembly are right Slideway is relative with the notch of left slideway just, and the non-toothed right-hand member of right-hand member lifting rack matches with the U-lag on right slideway to be combined into It is slidably connected, the toothed left end of right-hand member lifting rack engages connection with 1 axle lifting gear；The upper end of right linking arm is inboard and right The front end face of end lifting rack is fixedly connected, and the front end face of the lower end of right linking arm is in contact with the rear end face of rear bumper right-hand member And it is fixedly connected.

The beneficial effects of the utility model are compared with prior art：

1. the main passive security of heavy-duty car described in the utility model is integrated rear and passed using stepper motor, machinery The communication equipments such as dynamic, camera, radar are controlled to heavy goods vehicles rear bumper, and then can adjust rear defence according to actual condition The terrain clearance of shield.

2. the integrated rear of the main passive security of heavy-duty car described in the utility model is safe and reliable, firm resistance to With long lifespan.

3. the integrated rear of the main passive security of heavy-duty car described in the utility model is simple in construction, easy for installation.

4. the main passive security of heavy-duty car described in the utility model integrates, rear is safe and reliable, and stepping is electric The output signal high sensitivity of machine, precision are high.

5. the linkage section that the main passive security of heavy-duty car described in the utility model integrates rear can be with Transformed according to different vehicles, the process of transformation is convenient and simple.

6. the main passive security of heavy-duty car described in the utility model integrates rear and uses step motor control machine Structure start-stop, the output torque of motor is applied to by rear bumper using Bevel Gear Transmission, toothed belt transmission, rack pinion, And control its linear motion.The structure has stronger replicability available for being used in the machinery for needing such conversion.

7. the main passive security of heavy-duty car described in the utility model integrate rear using Delphi radar and bar This Le camera carries out the judgement and ranging to front vehicle type, has the very high degree of accuracy and reliability.

Brief description of the drawings

The utility model is further described below in conjunction with the accompanying drawings：

Fig. 1 is the front view that the main passive security of heavy-duty car described in the utility model integrates rear；

Fig. 2 is the top view that the main passive security of heavy-duty car described in the utility model integrates rear；

Fig. 3 is the axonometric projection view that the main passive security of heavy-duty car described in the utility model integrates rear；

Fig. 4 is 1 axle assembly structure in the integrated rear of the main passive security of heavy-duty car described in the utility model The breakdown axonometric projection view of composition；

Fig. 5 is that the described main passive security of heavy-duty car of the present utility model integrates 1 axle assembly structure in rear Form sectional view；

Fig. 6 is that the described main passive security of heavy-duty car of the present utility model integrates 2 axle assembly structures in rear Form sectional view；

Fig. 7 is that the described main passive security of heavy-duty car of the present utility model integrates 3 axle assembly structures in rear Form sectional view；

Fig. 8 is that the described main passive security of heavy-duty car of the present utility model integrates 4 axle assembly structures in rear Form sectional view；

Fig. 9 is that the integrated rear of the described main passive security of heavy-duty car of the present utility model uses cam feedback The intelligent regulating system operation principle block diagram of information；

Figure 10 is that the described main passive security of heavy-duty car of the present utility model integrates intelligence used by rear The control flow block diagram of regulating system；

In figure：1.3 shaft bevel gears, 2. right slideways, 3. vehicle frame front shrouds, 4. vehicle frame back shrouds, 5. timing belts, 6. steppings electricity Machine, No. 7.1 bearing blocks, the left longeron of 8. vehicle frames, 9. vehicle frame right vertical beams, 10. rear bumpers, 11. Butler cameras, 12. Dares Good fortune radar, 13. left ends lifting rack, 14.1 axle big belt wheels, 15. frame panels, 16.1 axles, 17.2 axles, 18.2 axle small pulleys, 19.3 axles, 20.4 shaft bevel gears, 21.1 bracing struts, 22. nuts, 23. packing rings, 24. pads, 25.1 axles lifting gear, No. 26.1 Sleeve, No. 27.1 deep groove ball bearings, 28.1 bearing housing rear end caps, No. 29.2 deep groove ball bearings, No. 30.2 sleeves, 31. felt collars, 32. plum coupling, 33.2 bearing housing rear end caps, No. 34.3 sleeves, No. 35.3 deep groove ball bearings, 36.4 axles, 37.3 axle axles Bearing rear end cap, No. 38.5 deep groove ball bearings, 39.3 bearing housings, No. 40.4 deep groove ball bearings, 41. collars, 42.4 bracing struts.

Embodiment

The utility model is explained in detail below in conjunction with the accompanying drawings：

With reference to figure 2, the main passive security of heavy-duty car described in the utility model, which integrates rear, includes 1 axle assembly, 2 Axle assembly, 3 axle assemblies, 4 axle assemblies, vehicle frame framework, rear bumper 10, left slideway assembly, right slideway assembly, Butler camera 11 and Delphi radar 12.

Refering to Fig. 2 and Fig. 3, described vehicle frame framework is by vehicle frame front shroud 3, vehicle frame back shroud 4, the left longeron 8 of vehicle frame, car The case type structural member of the top end opening for the cuboid that frame right vertical beam 9 is formed with frame panel 15, vehicle frame front shroud 3, car The left longeron 8 of frame back shroud 4, vehicle frame and the slot type structure that vehicle frame right vertical beam 9 is using U-shaped iso-cross-section made of steel plate punched Part, the left longeron 8 of vehicle frame front shroud 3, vehicle frame, vehicle frame back shroud 4 and vehicle frame right vertical beam 9 successively end to end rectangular framework, car The notch of frame back shroud 4 and vehicle frame front shroud 3 is relative to be placed in parallel, and the left side of vehicle frame front shroud 3 is provided with 4 axle assemblies of installation The PATENT left side via of 4 axles, the right side of vehicle frame front shroud 3 are provided with the right side through hole of 1 axle 16 in 1 axle assembly of installation, in rectangular frame Adjacent is fixedly connected using welding manner or bolt between the two, and frame panel 15 is using welding manner or is bolted to square On the bottom face of shape framework.

Refering to Fig. 2 and Fig. 4,1 described axle assembly include 1 bearing housing 7,1 axle big belt wheel 14,1 axle 16,1 bracing strut 21, Nut 22, packing ring 23, pad 24,1 axle lifting gear, 25, No. 1 sleeves 26, No. 1 deep groove ball bearing 27, bearing of model 6206 29, No. 2 sleeves 30 of No. 2 deep groove ball bearings and the felt collar 31 of base rear end lid 28, model 6206.

1 bearing housing rear end cap 28 is disc-shaped structure part, is provided with the center of the side of 1 bearing housing rear end cap 28 convex The torus gone out, the external diameter of torus is equal with the diameter of No. 1 bearing cross hole of the upper end of 1 bearing housing 7, and the internal diameter of torus is big After the internal diameter of No. 1 outer collar bearing of deep groove ball bearing 27 equal to model 6206, the axis of rotation of torus and 1 bearing housing The rotation conllinear of end cap 28.

1 described axle 16 is 6 segmentation straight-bar class multi-diameter shafts, is referred to as first paragraph axle successively from left to right to the 6th section of axle, the The diameter of one section of axle is less than the diameter of second segment axle, and the diameter of second segment axle is less than the diameter of the 3rd section of axle, the 3rd section of axle to the The diameter of six sections of axles is reduced successively；It is provided for that No. 2 deep groove ball bearings 29 and No. 2 sleeves 30 are installed on first paragraph axle；Second segment Axle is provided for installing 1 axle big belt wheel 14, is provided with keyway, second segment axle and 1 axle big belt wheel 14 on second segment axle vertically Between use key connection；3rd section of axle is optical axis, uneasy component；4th section of axle is provided for installing No. 1 sleeve 26 and No. 1 Deep groove ball bearing 27；5th section of axle is provided for installing the keyway of 1 axle lifting gear 25, the 5th section of axle and 1 axle lifting gear 25 Between use key connection；It is provided with externally threaded 6th section of axle and is used to packing ring 23 and pad 24 and nut are installed vertically 22。

No. 1 described bearing block 7 is the plate structure part of L-shaped, and No. 1 bearing block 7 is by No. 1 supporting walls and No. 1 bedplate group Into No. 1 supporting walls and base are all rectangle plate structure part, and installation model is provided with the center of No. 1 supporting walls upper end The bearing hole of base 1 of 6206 No. 2 deep groove ball bearings 29, the diameter of the bearing hole of base 1 and No. 2 deep-groove ball axles of model 6206 The diameter held is equal, and the torus external diameter of the protrusion with being set at the side center of 1 bearing housing rear end cap 28 is equal, on bedplate The bolt of lower base through hole of installation bolt is equably provided with, the width of supporting walls is equal with the width of bedplate, supporting walls bottom It is integral with one side vertical connection of bedplate.

1 described axle big belt wheel 14 is the tooth form belt wheel being connected with timing belt 5, the gear teeth knot in 1 axle big belt wheel 14 Structure and 2 axle small pulleys 18 are identical with the gear teeth structure on timing belt 5, and the number of teeth is different, in being provided with the center of 1 axle big belt wheel 14 Heart through hole, axially disposed on the hole wall of central through hole to have a keyway, the diameter of central through hole is straight with the second segment axle on 1 axle 16 Footpath is equal, the equal length of the width of 1 axle big belt wheel 14 and the second segment axle on 1 axle 16；1 axle big belt wheel 14 is matched somebody with somebody with timing belt 5 Close and transmit power and torque.

Described 1 axle lifting gear 25 is the gear that connection is engaged with rack, and center is provided with 1 axle lifting gear centre Through hole, central through hole is axially disposed keyway, and the diameter of central through hole is equal with the diameter of the 5th section of axle of 1 axle 16, and 1 axle is lifted Rise the equal length of the 5th section of axle on the width and 1 axle 16 of gear 25.

No. 2 described deep groove ball bearings 29 are identical with No. 1 structure of deep groove ball bearing 27, all using the depth of model 6206 Ditch ball bearing, the aperture phase of the external diameter of No. 2 deep groove ball bearings 29 and the bearing hole of base 1 of supporting walls upper end in No. 1 bearing block 7 Deng the internal diameter of No. 2 deep groove ball bearings 29 is equal with the diameter of axle of first paragraph axle in 1 axle 16；The external diameter and 1 of No. 1 deep groove ball bearing 27 The diameter of central blind hole on bracing strut 21 is equal, the diameter of axle phase of the internal diameter of No. 1 deep groove ball bearing 27 and the 4th section of axle in 1 axle 16 Deng.

1 described bracing strut 21 is annulus bodily form structural member, and shoulder hole, shoulder hole are provided with the center of 1 bracing strut 21 Axis of rotation and 1 bracing strut 21 rotation conllinear, the aperture of left end is more than the aperture of right-hand member, and left end hole is used to install 1 Number deep groove ball bearing 27, right-hand member borehole jack are mounted in 1 axle 16 around the 4th section of axle, and the aperture in right-hand member hole is more than the 4th in 1 axle 16 The diameter of axle of section axle；The bolt hole of installation bolt is equably provided with around shoulder hole, 1 bracing strut 21 is passed through thereon using bolt Bolt hole be fixed on the inboard face of vehicle frame front shroud 3.

No. 1 bearing block 7 is arranged on the frame panel 15 in vehicle frame framework, No. 1 deep groove ball bearing 27 of model 6206 In the bearing hole of base 1 of No. 1 upper end of bearing block 7, the right side that 1 bracing strut 21 is arranged on front shroud 3 using bolt leads to To be fixedly connected at the inboard aperture in hole, the bearing hole of base 1 of the axis of rotation of 1 bracing strut 21 and No. 1 upper end of bearing block 7 returns Shaft axis are conllinear；The front end of 1 axle 16 is fitted into 1 bracing strut 21 and stretched out by No. 1 deep groove ball bearing 27 of 1 model 6206 The rear end of the axle 16 of front shroud 3,1 loads the bearing of No. 2 deep groove ball bearings 29 of a model 6206 of No. 1 upper end of bearing block 7 Kong Zhong, it is key connection that 1 axle big belt wheel 14, which is sleeved on the second segment axle of 1 axle 16 in No. 1 left side of bearing block 7, and 1 axle lifts gear 25 It is key connection to be sleeved on the first paragraph axle of 1 axle 16 stretched out from the right side through hole of front shroud 3, and 1 axle lifts gear 25 along axis There are 1cm gaps in direction with front shroud, to prevent movement interference.Torus on 1 bearing housing rear end cap 28 is arranged on No. 1 bearing In the bearing hole of base 1 of 7 upper ends of seat, the right side of the torus on 1 bearing housing rear end cap 28 and No. 2 deep groove ball bearings 29 The left side contact connection of outer race, is fixed using bolt between 1 bearing housing rear end cap 28 and No. 1 upper end of bearing block 7 and connected Connect, No. 2 sleeves 30 are sleeved on the first paragraph axle of 1 axle 16, the left side of No. 2 sleeves 30 and the bearing of No. 2 deep groove ball bearings 29 The right side contact connection of inner ring, the right side of No. 2 sleeves 30 contacts connection, 1 axle big belt wheel with the left side of 1 axle big belt wheel 14 The shaft shoulder that the second segment axle of 14 and 1 axle 16 is formed with the 3rd section of axle of 1 axle 16 contacts connection；No. 1 sleeve 26 is sleeved on 1 axle 16 The 4th section of axle on, the shaft shoulder that the left side of No. 1 sleeve 26 and the 3rd section of axle of 1 axle 16 and the 4th section of axle of 1 axle 16 are formed Contact connection, the right side of No. 1 sleeve 26 contacts connection, No. 1 zanjon with the left side of the bearing inner ring of No. 1 deep groove ball bearing 27 The shoulder hole of the right side of the outer race of ball bearing 27 and 1 bracing strut 21 forms annular left side contact connection；1 axle lifts Gear 25 is arranged on the 5th section of axle of 1 axle 16, the left side of 1 axle lifting gear 25 and the 4th section of axle and 1 axle 16 of 1 axle 16 The shaft shoulder contact connection that 5th section of axle is formed；Packing ring 23, pad 24 and the axle of nut 22,1 are installed vertically on the 6th section of axle Lifting gear 25, packing ring 23, pad 24 contact connection successively with nut 22.

Refering to Fig. 2, Fig. 3 and Fig. 6,2 described axle assemblies include model YB2-100L2-4 stepper motor 6, stepping electricity Machine driver, 2 axles 17,2 axle small pulleys 18, plum coupling 32,2 bearing housing rear end caps 33, No. 3 zanjons of model 6206 35, No. 3 sleeves 34 of ball bearing, 2 shaft bevel gears, motor base, 2 axle bases.

2 described axle bases are the plate structure part of L-shaped, and 2 axle bases are made up of supporting walls and bedplate, supporting walls and bottom Seat is all rectangle plate structure part, and the bearing hole of base 2 of installation bearing, the bearing of base 2 are provided with the center of supporting walls upper end The diameter in hole is equal with the diameter of No. 2 deep groove ball bearings of model 6206, with being set at the side center of 2 bearing housing rear end cap 33 The torus external diameter for the protrusion put is equal, and the bolt of lower base through hole of installation bolt is equably provided with bedplate, supporting walls Width is equal with the width of bedplate, and one side vertical connection of supporting walls bottom and bedplate is integral.

2 described bearing housing rear end caps 33 are disc-shaped structure part, are provided with the center of 2 bearing housing rear end caps 33 The central through hole of 2 axles 17 can be installed, the diameter of the central through hole is equal with the diameter of 2 axles 17, around central through hole uniformly Ground is provided with the bolt hole of 6~8 installation bolts, and the axis of rotation of circle is with where the bolt hole of 6~8 installation bolts The rotation conllinear of heart through hole, the torus of protrusion is provided with the center of the side of 2 bearing housing rear end cap 33, torus External diameter is equal with the diameter of the central through hole of 2 axle base upper ends, and the internal diameter of torus is more than or equal to No. 2 zanjons of model 6206 The internal diameter of ball bearing outer collar bearing, the axis of rotation of the axis of rotation of torus and the central through hole of 2 bearing housing rear end cap 33 are total to Line.

2 described axles 17 are 6 segmentation straight-bar class multi-diameter shafts, are referred to as first paragraph axle successively from left to right to the 6th section of axle, the The diameter of one section of axle is less than the diameter of second segment axle, and the diameter of second segment axle to the 6th section of axle is reduced successively；Set on first paragraph axle The keyway for installing 2 shaft bevel gears is equipped with, the jump-ring slot for installing jump ring is provided with the left of keyway；Second segment axle is light Axle, uneasy component；The keyway for installing 2 axle small pulleys 18 is provided with 3rd section of axle, the length of the 3rd section of axle is less than 2 The width of axle small pulley 18；No. 2 deep groove ball bearings of the 4th section of axle for installing No. 3 sleeves 34 and model 6206, the 4th section The length of axle is equal to the length of No. 3 sleeves 34 and the width sum of No. 2 deep groove ball bearing inner bearing collars of model 6206；5th Section axle is used to be set with 2 bearing housing rear end caps 33, and the diameter of the 5th section of axle and the central through hole on 2 bearing housing rear end caps 33 are straight Footpath is equal；It is axially disposed on 6th section of axle to have for connecting with plum coupling 32

2 described axle small pulleys 18 are the tooth form belt wheel being connected with timing belt 5, the gear teeth knot on 2 axle small pulleys 18 Structure and 1 axle big belt wheel 14 are identical with the gear teeth structure on timing belt 5, and the number of teeth is different, in being provided with the center of 2 axle small pulley 18 Heart through hole, axially disposed on the hole wall of central through hole to have a keyway, the diameter of central through hole is straight with the 3rd section of axle on 2 axles 17 Footpath is equal, the equal length of the 3rd on the width of 2 axle small pulleys 18 and 2 axles 17 section axle.

The model YL3 (GB/T5843-1986) of described plum coupling 32, the left end internal diameter of plum coupling 32 with The diameter of 6th section of axle of 2 axles 17 is equal, and its right-hand member internal diameter is equal with the diameter of the output shaft of stepper motor 6；Plum coupling 32 left and right end uses key connection between the 6th section of axle of 2 axles 17 and the output shaft of stepper motor 6 respectively.

No. 3 described deep groove ball bearings 35 are using the deep groove ball bearing of model 6206, the external diameter of No. 3 deep groove ball bearings 35 It is equal with the aperture of the bearing hole of base 2 of the supporting walls upper end of 2 axle bases, the internal diameter of No. 3 deep groove ball bearings 35 and the of 2 axles 17 The diameter of axle of four sections of axles is equal；

Described motor base is the plate structure part of L-shaped, and motor base is made up of motor support wall and motor bottom seat board, Motor support wall and motor bottom seat board are rectangle plate structure part, and stretching stepping is provided with the center of motor support wall upper end The base holes of the output shaft of motor 6, the diameter of base holes are more than the diameter of motor output shaft, are equably provided with motor bottom seat board The bolt of lower base through hole of installation bolt, the width of motor support wall is equal with the width of motor bottom seat board, motor support wall bottom It is integral with one side vertical connection of motor bottom seat board.

The model F3722 of described stepper motor driver, outward appearance are rectangular thick plate, and primary structure has annular distribution Device, protection circuit and sensor, it is mainly used in stepper motor 6 and is not directly connected to work on industrial frequency AC or dc source, be used for A kind of electrical part being indirectly connected to the live wire of stepper motor 6 and zero line on the both positive and negative polarity of power supply；

PLC industrial control boards are the mainboard of programmable logic system, a kind of embedded device, are a kind of masters of applicable industry occasion Plate, outward appearance are rectangular thin plate, have multiple switch amount input on mainboard, can gather multigroup sensor signal, have big work( Rate transistor output, also contain single-chip microcomputer thereon as main control chip, can external power supply；Adverse circumstances are suitable on mainboard, Long-time high load capacity works.

For motor base using being bolted on the frame panel 15 in vehicle frame framework, motor base is located at No. 1 bearing block 7 Upper left side, the axis of rotation of 1 bearing hole of the axis of rotation of the centre bore of motor base upper end and No. 1 upper end of bearing block 7 is empty Between it is parallel, model YB2-100L2-4 stepper motor 6 is using being bolted on the rear end face of motor base upper end, stepping The output shaft of motor 6 and the rear end of plum coupling connect for spline pair, and the rear end of the front end of plum coupling and 2 axles 17 is flower The secondary connection of key, 2 axles 17 are arranged on the bearing hole of base 2 of 2 axle base upper ends by No. 3 deep groove ball bearings 35 of model 6206 In；2 bearing housing rear end caps 33 are arranged on the rear end face of 2 axle base upper ends, and are sleeved on the 5th section of axle of 2 axles 17,2 axles The torus of the protrusion of the side of bearing block rear end cap 33 is arranged in the bearing hole of base 2, the left side of the torus of protrusion and type Number for 6206 No. 3 deep groove ball bearings 35 outer collar bearing right side contact connection, on the 4th section of axle of 2 axles 17 The left side of the inner bearing collar of No. 3 deep groove ball bearings 35 of model 6206 and No. 3 sets on the 4th section of axle of 2 axles 17 The right side contact connection of cylinder 34, the left side of No. 3 sleeves 34 and the 2 axle small pulleys 18 on the 3rd section of axle of 2 axles 17 Right side contact connection, the shaft shoulder that the second segment axle of the left side of 2 axle small pulleys 18 and 2 axles 17 is formed with the 3rd section of axle connects Connection is touched, is key connection between 2 axle small pulleys 18 and 2 axles 17；2 axle bases are located at the front of motor base, the gyroaxis of 2 axles 17 The rotation conllinear of line and the output shaft of stepper motor 6,2 shaft bevel gears are sleeved on the first paragraph axle of 2 axles 17,2 axial cone teeth It is key connection between wheel and 2 axles 17, jump ring is arranged in the jump-ring slot on 2 axles 17 on the left of 2 shaft bevel gears, 2 shaft bevel gears The first paragraph axle of right side and 2 axles 17 contacts connection with the shaft shoulder that second segment axle is formed.

Described stepper motor driver is connected with model YB2-100L2-4 stepper motor 6 by PLC industrial control boards, I.e. model YB2-100L2-4 stepper motor 6 and stepper motor driver are connected with the both positive and negative polarity of power supply, first by stepping electricity Four lines of machine 6 according to one positive one it is negative be divided into two groups, then by two groups of lines according to it is positive and negative access stepper motor driver A+, Tetra- binding posts of A-, B+, B-, the Y1 binding posts of the direction signal line access PLC industrial control boards of stepper motor driver, pulse signal Line accesses Y0 binding posts.Four electric wires, which are drawn, from the both positive and negative polarity of power supply is respectively connected to PLC industrial control boards and stepper motor driver On the binding post of corresponding live wire and zero line, the start and stop to stepper motor are realized by stepper motor driver and PLC industrial control boards.

Refering to Fig. 2 and Fig. 3 and Fig. 7,3 described axle assemblies include 23 bearing housing rear end caps of structure identical 37,2 The bearing housing 39 of structure identical 3, No. 5 deep groove ball bearings 38 of model 6208, No. 4 deep groove ball bearings of model 6208 40th, 3 axles 19,3 shaft bevel gears 1.

No. 4 deep groove ball bearings 40 of described model 6208 are arranged on 3 with No. 5 deep groove ball bearings 38 of model 6208 In the bearing hole of 19 left and right two upper ends of 3 bearing housing of structure identical 39 of axle, 2 bearing housings 39 of structure identical 3 use Bolt is symmetrically fixed on frame panel 15, and it is identical that 2 bearing housing rear end caps 37 of structure identical 3 are arranged on 2 structures 3 bearing housings 39 upper end, on the right sides of 2 bearing housing rear end caps 37 of structure identical 3, left side and 3 bearing housings 39 The left and right end face at end is in contact and is fixedly connected using bolt, the annulus on 2 bearing housing rear end caps 37 of structure identical 3 Body flange is fitted into the bearing hole of 2 upper ends of 3 bearing housing of structure identical 39,2 bearing housing rear end caps of structure identical 3 The right side, left side and No. 4 deep groove ball bearings 40 of torus flange on 37 are left and right with No. 5 outer collar bearings of deep groove ball bearing 38 End face is in contact；In the hole of No. 4 inner bearing collars of deep groove ball bearing 40 of the first paragraph axle insertion model 6208 of the left end of 3 axle 19,3 The right-hand member of axle 19 the 4th section of axle insertion model 6208 No. 5 inner bearing collars of deep groove ball bearing 38 hole in, the left end of 3 axles 19 with To be fixedly connected between No. 4 inner bearing collars of deep groove ball bearing 40, the right-hand member of 3 axles 19 and No. 5 inner bearing collars of deep groove ball bearing 38 it Between to be fixedly connected, 3 axles 19 are located at the front of 2 axle assemblies, the gyroaxis of 2 axles 17 in the axis of rotation and 2 axle assemblies of 3 axles 19 Line intersects vertically, and 3 shaft bevel gears 1 are sleeved on one end of the 3rd section of axle of 3 axles 19 between 2 bearing housings 39 of structure identical 3 Place, be key connection between 3 shaft bevel gears 1 and 3 axles 19, be set with 3 left and right axles 19 of 3 shaft bevel gears 1 long positioning sleeve with it is short fixed Position set, the right side of long positioning sleeve contact connection with the left side of the circle convex platform at the center of 3 shaft bevel gears 1, long positioning sleeve The second segment axle of left side and 3 axles 19 contacts connection, the left side of short positioning sleeve and 3 axial cones with the shaft shoulder that the 3rd section of axle is formed The right side contact connection of right circle convex platform at the center of gear 1, the right side of short positioning sleeve and No. 5 interior axles of deep groove ball bearing 38 The left side contact connection of carrier ring, 3 shaft bevel gears 1 engage connection with 2 shaft bevel gears, have the function that passing power.

With reference to figure 2, Fig. 3 and Fig. 8,4 described axle assemblies include 4 axles 36,4 axles lifting gear, 4 shaft bevel gears 20, connection Bolt, collar 41,4 bracing struts 42.

4 described bracing struts 42 are annulus bodily form structural member, and shoulder hole, shoulder hole are provided with the center of 4 bracing struts 42 Axis of rotation and 4 bracing struts 42 rotation conllinear, the aperture of right-hand member is more than the aperture of left end, and right-hand member large diameter hole is used to pacify Collar 41 is filled, left end diameter holes are sleeved in 4 axles 36 on the 3rd section of axle, and the aperture of left end diameter holes is more than in 4 axles 36 the 3rd section The diameter of axle of axle；It is radially even on the hole wall of the right-hand member large diameter hole of 4 bracing strut 42 to be symmetrically provided with bolt hole, using bolt simultaneously 4 bracing struts 42 are installed in the PATENT left side via on vehicle frame front shroud 3 by the bolt hole on 4 bracing struts 42.

4 described axles 36 are 4 segmentation straight-bar class multi-diameter shafts, are referred to as first paragraph axle successively from left to right to the 4th section of axle, the The diameter of one section of axle is less than the diameter of second segment axle, and the diameter of second segment axle to the 4th section of axle is according to reduction；It is used on first paragraph axle Mounting gasket, pad, nut；Second segment axle is provided with the keyway of installation 4 axles lifting gear, and the length of second segment axle is less than or equal to 4 axles lift the width of gear；3rd section of axle is used to install collar 41, is provided with the 3rd section of axle for installing 4 shaft bevel gears 20 Keyway, the length of the 3rd section of axle is less than or equal to the length of 4 bracing strut 42 and the width sum of 4 shaft bevel gears 20；4th section of axle is used for Mounting gasket and nut, to be provided with external screw thread on this 4th section of axle.

Described 4 axles lifting gear is the gear that connection is engaged with rack, and being provided with center at 4 axles lifting gear centre leads to Hole, central through hole is axially disposed keyway, and the diameter of central through hole is equal with the diameter of the second segment axle of 4 axles 36, the lifting of 4 axles The equal length of the width of gear and the second segment axle on 4 axles 36.

It is provided with through hole at the center of 4 described shaft bevel gears 20, it is axially disposed on the hole wall of central through hole to have keyway, The diameter of central through hole is equal with the diameter of the 3rd section of axle on 4 axles 36, the width of 4 shaft bevel gears 20 and the length of 4 bracing struts Sum and the equal length of the 3rd section of axle on 4 axles 36.

4 described bracing struts 42 are arranged on to be fixedly connected in the PATENT left side via of front shroud 3, and 4 axles 36 pass through a collar 41 are arranged in the right-hand member large diameter hole of 4 bracing struts 42, are rotation connection, the bracing strut 42 of collar 41 and 4 between 4 axles 36 and collar 41 Right-hand member large diameter hole between be stationary fit, the left end diameter holes of 4 bracing struts 42 are sleeved on the 3rd section of axle of 4 axles 36,4 bracing struts It is the second segment of cooperation, the left side of 4 bracing struts 42 and 4 axles 36 between 42 left end diameter holes and the 3rd section of axle of 4 axles 36 The shaft shoulder formed between axle and the 3rd section of axle of 4 axles 36 contacts connection, and 4 shaft bevel gears 20 are sleeved on the bracing strut of collar 41 and 4 On 3rd section of axle of 4 axles 36 on 42 right sides, and 4 shaft bevel gears 20 are located at the of 4 axles 36 of rear (inner) side of vehicle frame front shroud 3 It is key connection on three sections of axles, between 4 shaft bevel gears 20 and 4 axles 36, the right side of 4 shaft bevel gears 20 is provided with packing ring and nut, 4 axles It is to be slidably matched between the left side of bevel gear 20 and the left side of the bracing strut 42 of collar 41 and 4；The axis of rotation and 3 of 4 axles 36 The axis of rotation of 3 axles 19 in axle assembly intersects vertically, and 4 shaft bevel gears 20 engage connection with 3 shaft bevel gears 1 in 3 axle assemblies.

4 axles lifting gear is arranged on 4 axles 36 and stretched out on the second segment axle of vehicle frame front shroud 3,4 axles lifting gear and 4 axles 36 Second segment axle between use key connection, matches somebody with somebody between the right side of 4 axles lifting gear and the left side of 4 bracing struts 42 for slip Close, packing ring is installed on the left of 4 axles lifting gear with nut and fixes 4 axles lifting wheel gear locking；4 axles lift gear and left cunning The left end lifting engagement connection of rack 13 in road assembly, 4 axles lifting gear have 1cm between vehicle frame front shroud 3 in the axial direction Gap, to prevent movement interference.

Refering to Fig. 1 to Fig. 3, described left slideway assembly includes left end lifting rack 13, left slideway, left linking arm；

Described left slideway is the slot type straight rod member of U-shaped iso-cross-section, and left slideway is vertically fixed on the left end of front shroud 3 On front end face, left slideway and the Parallel Symmetric of right slideway 2 in right slideway assembly, left slideway is relative just with the notch of right slideway 2, groove Width and left end lifting rack 13 thickness it is equal, the left end of left end lifting rack 13 is non-band increment and the U on left slideway Shape groove, which matches to be combined into, to be slidably connected, and the right-hand member of left end lifting rack 13 is that band increment engages connection with 4 axles lifting gear；Left connection The inboard front end face with left end lifting rack 13 in the upper end of arm is fixedly connected, the front end face and rear bumper of the lower end of left linking arm The rear end face of 10 left ends is in contact and is fixedly connected.4 axles lifting pinion rotation drives left end lifting rack 13 to move up and down, from And left end lifting rack 13 drives the left end of rear bumper 10 to move up and down, left slideway assembly acts simultaneously with right slideway assembly to be reached To the purpose of 10 upper and lower height adjustable of rear bumper.

Referring to figs. 1 to Fig. 3, described right slideway assembly includes right-hand member lifting rack, right slideway 2, right linking arm；

Described right-hand member lifting rack is identical with the left end lifting structure of rack 13, and right slideway 2 is identical with left slideway structure, right Linking arm is identical with left connection arm configuration；

Right slideway 2 is vertically fixed on the front end face of the right-hand member of front shroud 3, right slideway 2 and left slideway Parallel Symmetric, right cunning Road 2 is relative with the notch of left slideway just, and the right-hand member of right-hand member lifting rack is that non-band increment is combined into the U-lag matching on right slideway It is slidably connected, the left end of right-hand member lifting rack is that band increment engages connection with 1 axle lifting gear 25；The upper end of right linking arm is inboard It is fixedly connected with the front end face of right-hand member lifting rack, the front end face of the lower end of right linking arm and the rear end face of the right-hand member of rear bumper 10 It is in contact and is fixedly connected.1 axle lifting gear 25, which rotates, drives right-hand member lifting rack to move up and down, so as to right-hand member lifting rack The right-hand member of rear bumper 10 is driven to move up and down, it is upper and lower that the action simultaneously of right slideway assembly and left slideway assembly reaches rear bumper 10 The purpose of height adjustable.

1 axle assembly is arranged in vehicle frame framework on the frame panel 15 on right side, and the front end of 1 axle 16 in 1 axle assembly is in the past Stretched out in right-hand member through hole on cover plate 3,1 axle lifting gear 25, which is arranged on, to be stretched out on 1 axle 16 of front shroud 3；2 axle assemblies are arranged on On frame panel 15 in the vehicle frame framework in the left side of 1 axle 16, the axis of rotation of 2 axles 17 in 2 axle assemblies and the gyroaxis of 1 axle 16 It is parallel；3 axle assemblies are arranged on the frame panel 15 in front of 2 axle assemblies, and 3 axle assemblies are fixed on vehicle frame bottom by two bearing blocks On plate 15, the axis of rotation of the axis of rotation of 3 axles 19 in 3 axle assemblies and 2 axles 17 in 2 axle assemblies intersects vertically；1 axle assembly In 1 axle big belt wheel 14 connected with 2 axle small pulleys 18 in 2 axle assemblies by the tooth form synchronous belt of model 300H150 types Connect, 2 shaft bevel gears in 2 axle assemblies engage connection with 3 shaft bevel gears 1 in 3 axle assemblies；4 axle assemblies are arranged on front shroud 3 Left end through hole in, 4 axles lifting gear be arranged on 4 axles outer end, that is, be arranged on stretch out vehicle frame framework outside 4 axles on, 4 axial cones Gear is arranged on the inner end of 4 axles, that is, is arranged on and puts on 4 axles of vehicle frame lower portion, 4 shaft bevel gears engage with 3 shaft bevel gears Connection；The axis of rotation of the axis of rotation of 4 shaft bevel gears and 3 shaft bevel gears 1 intersects vertically.

Left slideway assembly is arranged at the front end face of the left end of vehicle frame front shroud 3, and right slideway assembly is arranged on vehicle frame front shroud 3 At the front end face of right-hand member, rear bumper 10 is fixedly connected with the front end face of left slideway assembly, right slideway assembly lower end using bolt.

Left slideway assembly is arranged on the left and right ends of vehicle frame front shroud 3 with the left slideway in right slideway assembly and right slideway 2 At front end face, left slideway is with being sequentially installed with left end lifting rack 13 and right-hand member lifting rack, left end lifting rack in right slideway 2 13 with right-hand member lifting rack lift gear 25 with 4 axles lifting gear and 1 axle successively engages and is connected；Left end lifts rack 13 and right-hand member The front end face of lifting rack is fixed with right linking arm and left linking arm successively, the front end face of right linking arm and left linking arm lower end and The rear end face of rear bumper 10 is fixedly connected using bolt.

With reference to figure 1, Fig. 5 and Fig. 6, Butler camera 11 and Delphi radar 12 are installed in the outside of front shroud 3, Dare The outside of good fortune radar 12 is bolted to by 3 on the front end face of front shroud 3, and Butler camera 11 is arranged on Delphi radar 12 tops, Butler camera 11 and Delphi radar 12 contain a netting twine and a power line, Butler camera 11 Inserted with the netting twine of Delphi radar 12 in automotive bus system Interface integration unit, Butler camera 11 and Delphi radar After 12 power line and the power line of stepper motor 6 together insert vehicle power, you can use.

Refering to Fig. 2, the main passive security of heavy-duty car described in the utility model integrates rear power transmission line Power is exported for stepper motor 6 and has been transmitted to 2 axle assemblies, and 2 axle small pulleys 18 on 2 axle assemblies obtain power by key, afterwards 1 axle Big belt wheel 14 obtains passing power by the timing belt 5 being connected with 2 axle small pulleys 18, and 1 axle is imparted power to by connecting key 1 axle lifting gear 15 on 16,1 axles 16 obtains power；2 shaft bevel gears of 2 axle assemblies are passed by engaging connection with 3 shaft bevel gears Graduating power, afterwards 4 shaft bevel gears 20 obtained by engaging to obtain power, 4 axles lifting gear with 3 shaft bevel gears by the key on 4 axles Rear bumper is lifted by pinion and rack together so as to lift gear 25 with 1 axle to power.Delphi radar 12 and Bart It is that the device differentiates device of the front vehicle apart from this car distance and front vehicle speed to strangle camera 11.

The operation principle of described Butler camera 11：Subject reflection light, travels to camera lens, through lens focus Onto CCD chip, CCD gathers corresponding electric charge according to the power of light, through periodic discharge, produces the electricity for representing a width width picture Signal, it is data signal in what is handled by picture processing chip by the amplification of pre- intermediate level circuit, AGC automatic growth controls, so Through analog-to-digital conversion to image digital signal processing IC (DSP).Synchronous generator mainly produces synchronizing clock signals (by crystal Oscillating circuit is completed), that is, scanning drive signal vertically and horizontally is produced, to image procossing IC.Then, through digital-to-analogue conversion electricity Road exports the composite video signal of a standard by lead-out terminal.By the vision-based detection to front vehicle car plate by rear The type (SUV, MPV) of vehicle is judged, so as to obtain rear longeron height；

The operation principle of described Delphi radar 12：The integrated vehicle driving condition letter of front vehicle radar observation system (relative distance, target vehicle and car speed and vehicle relative displacement) input BP neural network is ceased, final output collision is pre- Alert time (TTC).TTC is smaller, and the possibility of collision is bigger, as TTC=0, means that two cars bump against, TTC is worked as in setting More than reference threshold, i.e. in the riving condition of a safety, rear bumper may remain in one higher apart from ground vehicle Position；When TTC is less than reference threshold, automobile and automobile may collide, and the intelligent control module triggered after protection device is known Type of vehicle not below, and front truck chassis height is determined, to determine the height of rear and the speed of service, by stepping electricity Machine drive control drive motor, finally realizes intelligent protection, it is ensured that in different vehicle and car crass, collision occurs preceding Chinese herbaceous peony beam or front truck bumper, reach anti-drilling effect, reduce and collide very high casualty rate；In addition, system keeps monitoring car The anti-collision warning time be more than a threshold time whenever TTC, the warning rear bumper for releasing rearward collision at once actively solves Except supervision, recover rear apart from ground level, it is ensured that the passage of vehicle.

Claims (9)

1. a kind of main passive security of heavy-duty car integrates rear, it is characterised in that described heavy-duty car master passively pacifies Fully integrated rear includes 1 axle assembly, 2 axle assemblies, 3 axle assemblies, 4 axle assemblies, vehicle frame framework, rear bumper (10), a left side Slideway assembly, right slideway assembly, Bath strangle camera (11) and Delphi radar (12)；

Described vehicle frame framework is by vehicle frame front shroud (3), vehicle frame back shroud (4), the left longeron of vehicle frame (8), vehicle frame right vertical beam (9) The box typed structure part of the top end opening of the cuboid formed with frame panel (15)；

1 axle assembly is arranged in vehicle frame framework on the frame panel (15) on right side, and 2 axle assemblies are arranged on the car on the left of 1 axle assembly On frame bottom plate (15), the axis of rotation of 2 axles (17) in 2 axle assemblies is parallel with the gyroaxis of 1 axle (16) in 1 axle assembly；3 Axle assembly is arranged on the frame panel (15) in front of 2 axle assemblies, the axis of rotation and 2 axles (17) of 3 axles (19) in 3 axle assemblies Axis of rotation intersect vertically；1 axle big belt wheel (14) in 1 axle assembly passes through synchronous with 2 axle small pulleys (18) in 2 axle assemblies Band (5) is attached, and 2 shaft bevel gears in 2 axle assemblies engage connection with 3 shaft bevel gears (1) in 3 axle assemblies；4 axle assemblies are pacified In the PATENT left side via on vehicle frame front shroud (3), 4 shaft bevel gears engage connection with 3 shaft bevel gears (1)；Left slideway assembly peace At the front end face of vehicle frame front shroud (3) left end, right slideway assembly is symmetrically mounted at the front end of vehicle frame front shroud (3) right-hand member At face, rear bumper (10) is fixedly connected with the lower end of left slideway assembly, right slideway assembly using bolt；In left slideway assembly Left end lifting rack (13) engage connection with the 4 axles lifting gear in 4 axle assemblies, the right-hand member in right slideway assembly lift rack and 1 axle lifting gear (25) engagement connection in 1 axle assembly；Bath strangles camera (11) and Delphi radar (12) is arranged on vehicle frame On the front end face of front shroud (3), Bath strangles the top that camera (11) is arranged on Delphi radar (12).

2. integrate rear according to the main passive security of heavy-duty car described in claim 1, it is characterised in that described car Frame front shroud (3), vehicle frame back shroud (4), the left longeron of vehicle frame (8), vehicle frame right vertical beam (9) are using U made of steel plate punched The slot type structure part of shape iso-cross-section, vehicle frame front shroud (3), the left longeron of vehicle frame (8), vehicle frame back shroud (4) and vehicle frame right vertical beam (9) end to end rectangular framework successively, vehicle frame front shroud (3) is relative with the notch of vehicle frame back shroud (4) to be placed in parallel, vehicle frame The PATENT left side via of 4 axles (36) in 4 axle assemblies of installation is provided with the left of front shroud (3), vehicle frame front shroud is provided with the right side of (3) The right side through hole of 1 axle (16) in 1 axle assembly is installed, it is adjacent in rectangular frame to be fixed between the two using welding manner or bolt Connection, frame panel (15) is using welding manner or is bolted on the bottom face of rectangular frame.

3. integrate rear according to the main passive security of heavy-duty car described in claim 1, it is characterised in that described 1 Axle assembly also includes No. 1 bearing block (7), 1 bracing strut (21), No. 1 sleeve (26), No. 1 deep groove ball bearing of model 6206 (27), No. 2 deep groove ball bearings (29) of model 6206 and 1 bearing housing rear end cap (28)；

No. 1 described bearing block (7) is arranged on frame panel (15), No. 1 deep groove ball bearing (27) installation of model 6206 In 1 bearing hole of No. 1 bearing block (7) upper end, it is in the right side through hole that 1 bracing strut (21) is arranged on vehicle frame front shroud (3) It is fixedly connected, the rotation conllinear of 1 bearing hole of the axis of rotation of 1 bracing strut (21) and No. 1 bearing block (7) upper end；1 axle (16) front end is fitted into 1 bracing strut (21) by No. 1 deep groove ball bearing (27) of model 6206 and stretches out vehicle frame front shroud (3), the rear end of 1 axle (16) loads the bearing hole of No. 2 deep groove ball bearings (29) of the model 6206 of No. 1 bearing block (7) upper end In, it is key connection that 1 axle big belt wheel (14), which is sleeved on the second segment axle of 1 axle (16) on the left of No. 1 bearing block (7), 1 bearing housing Rear end cap (28) is arranged on the upper end of No. 1 bearing block (7) and is fixedly connected using bolt；No. 2 sleeves (30) are sleeved on 1 axle (16) First paragraph axle on, the left side of No. 2 sleeves (30) contacts company with the right side of the bearing inner ring of No. 2 deep groove ball bearings (29) Connect, the right side of No. 2 sleeves (30) contacts connection with the left side of 1 axle big belt wheel (14), the right side of 1 axle big belt wheel (14) and The shaft shoulder that the second segment axle of 1 axle (16) is formed with the 3rd section of axle of 1 axle (16) contacts connection；No. 1 sleeve (26) is sleeved on 1 axle (16) on the 4th section of axle, the left side of No. 1 sleeve (26) and the 3rd section of axle of 1 axle (16) and the 4th section of axle institute of 1 axle (16) The shaft shoulder contact connection of formation, the right side of No. 1 sleeve (26) and the left side of the bearing inner ring of No. 1 deep groove ball bearing (27) connect Connection is touched, the right side of the outer race of No. 1 deep groove ball bearing (27) and the shoulder hole of 1 bracing strut (21) form annular left end Face contact connection；1 axle lifting gear (25) is sleeved on the 5th of 1 axle (16) stretched out from through hole on the right side of vehicle frame front shroud (3) It is key connection, the left side of 1 axle lifting gear (25) and the 4th section of axle of 1 axle (16) and the 5th section of axle of 1 axle (16) on section axle The shaft shoulder contact connection formed, 1 axle lifting gear (25) have 1cm gaps with vehicle frame front shroud (3) in the axial direction；1 axle (16) packing ring (23) is sequentially installed with the 6th section of axle vertically, 1 axle is lifted gear (25) by pad (24) with nut (22) It is fixed.

4. integrate rear according to the main passive security of heavy-duty car described in claim 1, it is characterised in that described 1 Axle (16) is 6 segmentation straight-bar class multi-diameter shafts, is referred to as first paragraph axle successively from left to right to the 6th section of axle, for installing No. 2 zanjons The diameter of ball bearing (29) and the first paragraph axle of No. 2 sleeves (30) is less than the second segment axle for being used for installing 1 axle big belt wheel (14) Diameter, the diameter of second segment axle are less than the diameter of the 3rd section of axle, and the diameter of the 3rd section of axle to the 6th section of axle is reduced successively；Second segment The axially disposed keyway for having installation key on axle, the 3rd section of axle are the optical axis of uneasy component；3rd section of axle and the 4th section of axle Junction forms the shaft shoulder for No. 1 sleeve (26) and No. 1 deep groove ball bearing (27) axially position；Use is provided with 5th section of axle In the axially disposed external screw thread having for installing nut (22) on the keyway for installing 1 axle lifting gear (25), the 6th section of axle.

5. integrate rear according to the main passive security of heavy-duty car described in claim 1, it is characterised in that described 2 Axle assembly also includes model YB2-100L2-4 stepper motor (6), stepper motor driver, plum coupling (32), 2 axles Bearing block rear end cap (33), No. 3 sleeves (34), No. 3 deep groove ball bearings (35), motor base and the 2 axle bases of model 6206；

For described motor base using being bolted on frame panel (15), motor base is located at No. 1 bearing in 1 axle assembly The revolution of 1 bearing hole of the upper left side of seat (7), the axis of rotation of the base holes of motor base upper end and No. 1 bearing block (7) upper end Axial space is parallel, and model YB2-100L2-4 stepper motor (6) is using the upper end for being bolted to motor base, model Output shaft for YB2-100L2-4 stepper motor (6) with the rear end of plum coupling (32) is that spline pair is connected, plum blossom shaft coupling The front end of device (32) is connected with the rear end of 2 axles (17) for spline pair, No. 3 deep groove ball bearings that 2 axles (17) pass through model 6206 (35) in the bearing hole of base 2 of 2 axle base upper ends, 2 bearing housing rear end caps (33) are arranged on 2 axle base upper ends, 2 axles Base is located at the front at motor bottom seat, and the axis of rotation of the axis of rotation and the output shaft of stepper motor (6) of 2 axles (17) is total to Line, 2 shaft bevel gears are sleeved on the first paragraph axle of 2 axles (17), 2 axle small pulleys (18) be sleeved on 2 shaft bevel gears and 2 axle bases it Between 2 axles (17) the 3rd section of axle on, No. 3 sleeves (34) are arranged on the 4th section of axle of 2 axles (17) on the right side of 2 axle small pulleys (18) On, it is key connection between 2 axle small pulleys (18) and 2 axles (17).

6. integrate rear according to the main passive security of heavy-duty car described in claim 1, it is characterised in that described 3 Axle assembly also includes 2 the bearing housing rear end caps (37) of structure identical 3,2 bearing housings of structure identical 3 (39), models For 6208 No. 5 deep groove ball bearings (38) and No. 4 deep groove ball bearings (40) of model 6208；

No. 4 deep groove ball bearings (40) of described model 6208 are arranged on 3 with No. 5 deep groove ball bearings (38) of model 6208 In the bearing hole of left and right two structure identicals 3 bearing housing (39) upper end of axle (19), 2 bearing housings of structure identical 3 (39) symmetrically it is fixed on frame panel (15) using bolt, 2 bearing housing rear end caps (37) of structure identical 3 are arranged on 2 bearing housing of structure identical 3 (39) upper ends are simultaneously fixedly connected, the first paragraph axle insert type of 3 axles (19) left end using bolt In bearing hole number for 6208 No. 4 deep groove ball bearings (40), the 5 of the 4th section of axle of 3 axles (19) right-hand member insertion model 6208 In the bearing hole of number deep groove ball bearing (38), 3 axle assemblies are located at the front of 2 axle assemblies, and the axis of rotation and 2 axles of 3 axles (19) are total The axis of rotation of 2 axles (17) in intersects vertically, and 3 shaft bevel gears (1) are sleeved on 2 bearing housings of structure identical 3 (39) Between 3 axles (19) one end, be key connection between 3 shaft bevel gears (1) and 3 axles (19).

7. integrate rear according to the main passive security of heavy-duty car described in claim 1, it is characterised in that described 4 Axle assembly also includes 4 shaft bevel gears (20), 4 axles (36), collar (41) and 4 bracing struts (42)；

Described 4 bracing struts (42) are arranged on to be fixedly connected in the PATENT left side via of vehicle frame front shroud (3), and 4 axles (36) pass through one Individual collar (41) is arranged in 4 bracing struts (42), is rotation connection, collar (41) and 4 between 4 axles (36) and 4 bracing struts (42) It is stationary fit between the right-hand member large diameter hole of bracing strut (42), 4 axles lifting gear is arranged on 4 axles (36) and stretches out vehicle frame front shroud (3) Second segment axle on, use key connection between the second segment axle of 4 axles lifting gear and 4 axles (36), 4 axles lift gear and left slideway Left end lifting rack (13) engagement connection in assembly, 4 axles lifting gear have between vehicle frame front shroud (3) in the axial direction 1cm gaps, 4 shaft bevel gears (20) are arranged on 4 axles (36) and stretched out on the 3rd section of axle of vehicle frame front shroud (3) rear end, 4 shaft bevel gears (20) it is key connection between 4 axles (36).

8. integrate rear according to the main passive security of heavy-duty car described in claim 1, it is characterised in that a described left side Slideway assembly also includes left slideway and left linking arm；

Described left slideway is the slot type straight rod member of U-shaped iso-cross-section, and left slideway is vertically fixed on vehicle frame front shroud (3) left end Front end face on, right slideway (2) Parallel Symmetric in left slideway and right slideway assembly, the notch phase of left slideway and right slideway (2) Align, the width of groove is equal with the thickness of left end lifting rack (13), non-toothed left end and the left side of left end lifting rack (13) U-lag on slideway, which matches to be combined into, to be slidably connected, and the toothed right-hand member of left end lifting rack (13) engages company with 4 axles lifting gear Connect；The inboard front end face with left end lifting rack (13) in the upper end of left linking arm is fixedly connected, the front end of the lower end of left linking arm Face is in contact and is fixedly connected with the rear end face of rear bumper (10) left end.

9. integrate rear according to the main passive security of heavy-duty car described in claim 1, it is characterised in that the described right side Slideway assembly also includes right slideway (2) and right linking arm；

Described right-hand member lifting rack is identical with left end lifting rack (13) structure, and right slideway (2) is identical with left slideway structure, right Linking arm is identical with left connection arm configuration；

Right slideway (2) is vertically fixed on the front end face of vehicle frame front shroud (3) right-hand member, in right slideway (2) and left slideway assembly Left slideway Parallel Symmetric, right slideway (2) is relative with the notch of left slideway just, the non-toothed right-hand member of right-hand member lifting rack with it is right U-lag on slideway, which matches to be combined into, to be slidably connected, and the toothed left end of right-hand member lifting rack lifts gear (25) company of engagement with 1 axle Connect；The inboard front end face with right-hand member lifting rack in the upper end of right linking arm is fixedly connected, the front end face of the lower end of right linking arm and The rear end face of rear bumper (10) right-hand member is in contact and is fixedly connected.