CN217100231U - Transverse stability control system suitable for trailer truck - Google Patents

Abstract

The utility model provides a transverse stability control system suitable for pull-type freight train, solves the mechanical structure and the function that prior art exists and is simple, and the practicality is poor, and manual operation process is loaded down with trivial details, and mechanical transmission rigidity is big, easily produces fatigue damage's problem to automobile body and transmission part. The device comprises two groups of symmetrically arranged detection devices arranged on a front axle of a truck chassis, wherein each detection device consists of a horizontal sensor and a centrifugal force detector; the truck wheel punishment of truck chassis both sides do not the symmetry be provided with emergency response device, and emergency response device arranges between plate spring bradyseism and automobile body steelframe, and emergency response device's drive end links to each other with power supply device. Its reasonable in design, compact structure when the freight train runs into high-speed sharp turn or road surface inclination too big, can the rapid response, the one side automobile body that the lifting will turn on one's side, change freight train focus position, reduce the moment of turning on one's side, alleviate slope and centrifugal force, effectively promote the stability and the security that the freight train travel.

Description

Transverse stability control system suitable for trailer truck

Technical Field

The utility model belongs to the technical field of vehicle driving stability control, concretely relates to meet high-speed sharp turn or road surface inclination when too big at the freight train, can the rapid response, one side automobile body that the lifting will turn on one's side, change the centrobaric position of freight train reduce the moment of turning on one's side, alleviate slope and centrifugal force, can effectively promote the lateral stability control system who is applicable to the trailer formula freight train of freight train driving stability and security.

Background

The truck is an important transportation tool for modern industrial production and cargo transportation. When a truck runs on the road and needs to avoid obstacles and sharp turns, the whole truck body can generate larger centrifugal force towards the outside direction, and the load of the truck, the weight of the truck body and the center of gravity are higher, so that the possibility and the danger of accidents of the truck are higher than those of common cars under the conditions of the same inclination angle and the same sharp turns on the road surface and the obstacles are avoided, and the truck needs a rollover prevention device to stabilize the stability of the truck body.

At present, the types and the development directions of the rollover prevention device arranged on a trailer truck are more, but most of the rollover prevention device prevents rollover by increasing the distance between two wheels or reducing the height of a chassis and other modes, and the related mechanical structure and function are simpler and have poor practicability. Meanwhile, the rollover prevention devices with the traditional structures increase the stability of the truck by means of manual operation, so that the operation process is complicated, the rigidity of mechanical transmission is high, fatigue damage is easily caused to a truck body and transmission parts, and the application defect is obvious. There is a need for an improved method and apparatus for controlling the driving stability of a trailer truck.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just to above-mentioned problem, provide one kind and meet high-speed sharp turn or road surface inclination when too big at the freight train, can the rapid response, one side automobile body that the lifting will turn on one's side, change the centrobaric position of freight train reduce the moment of turning on one's side, alleviate slope and centrifugal force, can effectively promote the lateral stability control system who is applicable to the trailer formula freight train of freight train stability of going and security.

The utility model adopts the technical proposal that: this lateral stability control system suitable for trailer freight train includes the freight train chassis, its characterized in that: two groups of detection devices which are symmetrically arranged are arranged on a front axle of the truck chassis, and each detection device comprises a horizontal sensor and a centrifugal force detector; the emergency reaction device is arranged between the plate spring shock absorbers on the two sides and the vehicle body steel frame, and the driving end of the emergency reaction device is connected with a power supply device arranged on the truck chassis.

The centrifugal force detector comprises a detector body, a sliding guide groove is arranged in the detector body, a centrifugal sliding block is arranged at one end, away from the wagon wheels, of the sliding guide groove, a supporting spring is arranged at the other end of the sliding guide groove, and the free end of the supporting spring is connected with the end face of the centrifugal sliding block; and conductive films are respectively arranged on two sides of the middle part of the sliding guide groove, and connecting wires are respectively arranged on the conductive films on the two sides. When the truck turns and generates larger centrifugal force, the centrifugal sliding block of the detection device overcomes the resistance of the supporting spring by virtue of the centrifugal force and slides in the sliding guide groove of the detector main body; and when the conductive centrifugal sliding block moves to the positions of the conductive diaphragms on the two sides, the two sections of connecting wires can form a conductive path, and then a central processing system attached to a traveling crane computer and used for processing data of the detection device in real time sends a control signal to the emergency reaction device after detecting a centrifugal force signal.

The emergency reaction device comprises a telescopic mechanism, the lower end of the telescopic mechanism is connected with a plate spring shock absorber, the upper end of the telescopic mechanism is connected with a vehicle body steel frame through a buffer mechanism, and the driving part of the telescopic mechanism is connected with a quick driving mechanism. The rapid driving mechanism electrically connected with the control end of the central processing system is used for rapidly driving the telescopic mechanism to extend out, so that the integral gravity center of the truck deflects towards the inner side of a turn or the opposite direction of road surface inclination, the side-turning condition of the truck caused by sharp turning centrifugal force or road surface inclination is prevented, and the running safety of the truck is effectively improved.

The buffer mechanism comprises a buffer shell, a telescopic connecting groove is arranged in the middle of the lower side of the buffer shell, a bearing plate is arranged inside the telescopic connecting groove, and a fixed connecting plate is arranged on the upper side of the buffer shell; a buffer partition plate is arranged in a closed space formed by enclosing the fixed connecting plate, the buffer shell and the bearing plate, the buffer partition plate divides the closed space into a buffer liquid cavity and a spring cavity which are arranged up and down, a plurality of groups of buffer springs are arranged in the spring cavity, and sealing rubber rings are respectively arranged between the buffer partition plate and the inner side wall of the buffer shell; the periphery of the pressure-bearing plate in the telescopic connecting groove is flexibly connected with the buffer shell at the telescopic connecting groove through an elastic fold telescopic sleeve. The buffer mechanism is connected with the upper end of the telescopic mechanism by utilizing the bearing plate in the telescopic connecting groove, and the buffer solution for buffering the impact force is filled in the buffer solution cavity which is sealed at the upper side of the buffer clapboard, so that the impact from the quick driving mechanism is buffered; meanwhile, when the buffer partition plate moves up and down due to the pressure brought by the buffer solution on the upper side of the buffer partition plate, a plurality of groups of buffer springs in the spring cavity on the lower side can bear the pressure from the buffer partition plate and are also used for buffering; and the elastic fold telescopic sleeve plays a role in matching with the up-and-down movement of the bearing plate and sealing the liquid in the buffer liquid cavity.

The buffer guide post is characterized in that a plurality of groups of buffer guide posts which are vertically arranged are arranged on one side of the bearing plate, which is positioned in the buffer liquid cavity, and the buffer guide posts are matched and connected with buffer guide grooves correspondingly arranged on the inner side of the fixed connecting plate. The buffer guide post slides in the buffer guide groove on the inner side of the fixed connecting plate in a reciprocating manner to guide the movement of the bearing plate, so that the bearing plate only moves up and down and does not deviate in the buffer process.

The telescopic mechanism comprises a foundation column, the lower end of the foundation column is connected with the plate spring shock absorber, a telescopic shaft is arranged at the upper end of the foundation column in a telescopic mode, and the side portion of the telescopic shaft is connected with the quick driving mechanism. The telescopic shaft is driven to stretch in a reciprocating manner in the inserting cavity of the foundation column by utilizing the quick driving mechanism, so that one side of the truck is lifted, the gravity center position of the truck is changed, and the danger caused by the centrifugal force or the road surface inclination generated by the rapid steering of the truck is avoided.

The telescopic shaft comprises a middle column, a hydraulic lifting cavity is arranged inside the middle column, a liquid inlet and a liquid outlet at the bottom of the hydraulic lifting cavity are respectively connected with two inner casting oil paths arranged on a column body of the middle column, and the outer ends of the two inner casting oil paths are respectively connected with an oil inlet and an oil return port; a jacking column is further inserted and arranged inside the hydraulic lifting cavity of the middle column, a telescopic connector is arranged at the upper end of the jacking column, and a telescopic limiting convex edge is arranged at the lower end of the jacking column; the lower end of the middle column is inserted in the middle column insertion cavity of the foundation column. Hydraulic oil is filled into the hydraulic lifting cavity of the middle column through the oil inlet and the inner casting oil way by a hydraulic pump of the power supply device, and then the top column in the hydraulic lifting cavity moves upwards.

An oil inlet on the middle column is connected with an oil delivery pipeline, and the oil delivery pipeline is connected with a hydraulic pump of the power supply device through a two-position two-way electromagnetic valve; an oil return port on the middle column is connected with an oil return pipeline, the oil return pipeline is connected with a hydraulic oil tank through a two-position two-way electromagnetic valve, and the hydraulic oil tank is connected with a liquid inlet of a hydraulic pump; a check valve is arranged at the oil inlet, and a pressure limiting valve is arranged at the oil return port; the two-position two-way electromagnetic valve is connected with a power supply through the power on-off device. When the jack prop of the telescopic shaft needs to extend out, the hydraulic pump and the two-position two-way electromagnetic valve are started through the central processing system, so that the hydraulic pump works and oil is delivered to the oil delivery pipeline, meanwhile, the two-position two-way electromagnetic valve is changed into a right phase position due to the enhancement of electrified magnetic force, the oil delivery pipeline is connected, and the oil return pipeline is temporarily stopped; thus, the top column is slowly raised relative to the middle column under the pressure of the hydraulic pump. Meanwhile, the one-way valve and the pressure limiting valve are respectively arranged at the oil inlet and the oil return port, so that the hydraulic system can be prevented from being damaged when the pressure is too high. After the work is finished, the two-position two-way electromagnetic valve and the hydraulic pump are powered off simultaneously, and the top column falls back to a withdrawing state under the action of the self gravity of the truck due to pressure loss.

The rapid driving mechanism comprises a telescopic rack vertically arranged at the outer side part of the middle column, a transmission opening is arranged on the side wall of the middle column splicing cavity of the foundation column and at the position corresponding to the telescopic rack, a telescopic driving gear is rotationally arranged in the transmission opening, a gear shaft of the telescopic driving gear is arranged in a gear connecting shaft hole of the transmission opening, and the telescopic driving gear is meshed with the telescopic rack; and the telescopic driving gear is also meshed with a driving gear arranged on a rotating shaft of the telescopic driving motor. The driving gear drives the telescopic driving gear meshed with the driving gear to rotate reversely or forwardly by utilizing the forward rotation or reverse rotation of the telescopic driving motor, so that the intermediate shaft fixedly connected with the telescopic rack is driven to rapidly ascend or descend.

The utility model has the advantages that: the utility model adopts two groups of symmetrically arranged detection devices arranged on the front axle of the truck chassis, wherein the detection devices comprise a horizontal sensor and a centrifugal force detector; the freight train wheel punishment of freight train chassis both sides do not the symmetry be provided with emergency response device, emergency response device arranges between the plate spring bradyseism ware and the automobile body steelframe of both sides, the drive end of emergency response device and the continuous structural style of the power supply unit who sets up on the freight train chassis, so its reasonable in design, compact structure, when the freight train meets high-speed sharp turn or the too big condition of road surface angle of inclination, can automatic monitoring and quick response, the lifting will turn on one side the automobile body of turning on one's side, change the centrobaric position of freight train, reduce the moment of turning on one's side, effectively alleviate slope and centrifugal force, can promote the stability and the security that the freight train traveles.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a view from the direction a of fig. 1 (with the front and rear wheels of the truck removed).

Fig. 3 is a schematic view showing a structure of a centrifugal force detector of the detecting device of fig. 1.

Fig. 4 is a schematic view showing a structure of the emergency response device (including a hydraulic part of a power supply device) of fig. 1.

Fig. 5 is a schematic view of a structure of the damper mechanism in fig. 4.

Fig. 6 is a sectional view of the internal structure of fig. 5.

Fig. 7 is a front view of the cross-sectional structure of fig. 6.

Fig. 8 is a schematic view of a structure of the telescopic mechanism in fig. 4.

Fig. 9 is a sectional view of the internal structure of fig. 8.

Fig. 10 is a schematic illustration of an exploded structure of fig. 9.

Fig. 11 is a schematic view of a construction of the quick drive mechanism of fig. 4.

The sequence numbers in the figures illustrate: 1 truck chassis, 2 front axle, 3 truck front wheel, 4 detection device, 5 plate spring shock absorber, 6 truck body steel frame, 7 emergency reaction device, 8 power supply device, 9 truck rear wheel, 10 detector body, 11 sliding guide groove, 12 centrifugal sliding block, 13 supporting spring, 14 conductive membrane, 15 connecting lead, 16 buffer mechanism, 17 telescopic mechanism, 18 quick drive mechanism, 19 base column, 20 middle column, 21 top column, 22 hydraulic oil tank, 23 hydraulic pump, 24 two-position two-way solenoid valve, 25 oil pipeline, 26 one-way valve, 27 cast-in oil circuit, 28 pressure limiting valve, 29 oil return pipeline, 30 power supply on-off device, 31 power supply, 32 buffer shell, 33 telescopic connecting groove, 34 fixed connecting plate, 35 pressure bearing plate, 36 elastic fold telescopic sleeve, 37 buffer partition plate, 38 sealing rubber ring, 39 buffer liquid cavity, 40 spring cavity, 41 buffer spring cavity, 42 buffer guide posts, 43 buffer guide grooves, 44 telescopic driving gears, 45 telescopic racks, 46 hydraulic lifting cavities, 47 center post plugging cavities, 48 transmission gaps, 49 gear connecting shaft holes, 50 oil inlets, 51 oil return ports, 52 telescopic connectors, 53 telescopic limit convex edges, 54 driving gears and 55 telescopic driving motor rotating shafts.

Detailed Description

The specific structure of the present invention will be described in detail with reference to fig. 1 to 11. The transverse stability control system suitable for the trailer type truck comprises a truck chassis 1, wherein a front truck wheel 3 and a rear truck wheel 9 are respectively arranged at the front part and the rear part of the truck chassis 1. And, be provided with two sets of, along the detection device 4 of automobile body middle part axis symmetrical arrangement on the front axle 2 of freight train chassis 1, detection device 4 is including being used for monitoring the horizontal sensor of automobile body horizontal inclination to and be used for measuring the centrifugal force detector of centrifugal force.

The centrifugal force detector of the detection device 4 comprises a cylindrical detector body 10, a sliding guide groove 11 is arranged in the detector body 10, and a conductive centrifugal sliding block 12 is arranged on the sliding guide groove 11 and at the inner end far away from the front wheel 3 of the truck (for example, the centrifugal sliding block 12 can be made of metal materials such as lead); and a supporting spring 13 is arranged on the sliding guide groove 11 and close to the outer end of the front wheel 3 of the truck, the free end of the supporting spring 13 is connected with the end surface of the centrifugal sliding block 12, and the fixed end of the supporting spring 13 is fixedly connected with the outer end of the sliding guide groove 11. Meanwhile, the two sides of the middle part of the sliding guide groove 11 are respectively provided with a conductive membrane 14, and the conductive membranes 14 on the two sides are respectively provided with a connecting wire 15. Therefore, when the truck turns and generates a large centrifugal force, the centrifugal sliding block 12 of the detection device 4 overcomes the resistance of the supporting spring 13 by virtue of the centrifugal force and slides in the sliding guide groove 11 of the detector main body 10; and when electrically conductive centrifugal sliding block 12 moves to the position of electrically conductive diaphragm 14 on both sides, two sections of connecting wires 15 can form an electrically conductive path, and then a central processing system attached to a traveling computer and processing data of detection device 4 in real time sends out a control signal to emergency response device 7 arranged at the wheel of the truck after detecting a large centrifugal force signal.

The truck front wheels 3 and the truck rear wheels 9 on the two sides of the truck chassis 1 are respectively and symmetrically provided with emergency reaction devices 7, and the driving ends of the emergency reaction devices 7 are connected with a power supply device 8 arranged on the truck chassis 1. The emergency reaction device 7 is composed of a telescopic mechanism 17, the lower end of the telescopic mechanism 17 is connected with the plate spring shock absorbers 5 at the wheels at two sides, and the upper end of the telescopic mechanism 17 is connected with the vehicle body steel frame 6 through a buffer mechanism 16; the driving part of the telescopic mechanism 17 is connected with the quick driving mechanism 18; so that the extension and retraction mechanism 17 is rapidly driven to extend by the rapid driving mechanism 18 electrically connected to the control end of the central processing system, so as to deflect the overall center of gravity of the truck to the inner side of a turn or to the opposite direction of the incline of the road surface, for example: when the left turn is too sharp, the vehicle body can incline to the right side, and the right telescopic mechanism 17 is lifted at the moment; when the road surface inclines to the left side (the left side is low, the right side is high), the left telescopic mechanism 17 is lifted; and then through the deflection of the gravity center of the truck body, the conditions of rollover and the like of the truck caused by sharp turning centrifugal force or road surface inclination are prevented, and the running safety of the truck is effectively improved.

The telescopic mechanism 17 comprises a base column 19 at the bottom, the lower end of the base column 19 is connected with the plate spring shock absorber 5, a middle column inserting cavity 47 with an opening at the upper end is arranged in the base column 19, and a middle column 20 is inserted and arranged in the middle column inserting cavity 47; a hydraulic lifting cavity 46 is arranged inside the middle column 20, a liquid inlet and a liquid outlet at the bottom of the hydraulic lifting cavity 46 are respectively connected with two inner casting oil paths 27 arranged on the column body of the middle column 20, and the outer ends of the two inner casting oil paths 27 are respectively connected with an oil inlet 50 and an oil return port 51 arranged on the middle column 20. In addition, the interior of the hydraulic lifting cavity 46 of the middle column 20 is further provided with a top column 21 in an inserted manner, the upper end of the top column 21 is provided with a telescopic connector 52, and the lower end of the top column 21 is provided with a telescopic limit convex edge 53. At the same time, the side of the intermediate column 20 is connected to a quick drive mechanism 18 for quickly lifting one side of the truck; the intermediate column 20 is driven by the quick driving mechanism 18 to reciprocate and stretch in the middle column inserting cavity 47 of the base column 19, so that a certain side of the truck is lifted, the gravity center position of the truck is changed, and the danger caused by centrifugal force or road surface inclination generated by rapid steering of the truck is avoided.

The quick driving mechanism 18 comprises a telescopic rack 45 vertically arranged at the outer side part of the middle column 20, a transmission opening 48 is arranged on the side wall of the middle column inserting cavity 47 of the base column 19 at a position corresponding to the telescopic rack 45, a telescopic driving gear 44 is rotationally arranged in the transmission opening 48, and a gear shaft of the telescopic driving gear 44 is rotationally arranged in a gear connecting shaft hole 49 of the transmission opening 48. The telescopic driving gear 44 is meshed with the telescopic rack 45; and the telescopic driving gear 44 is also engaged with a driving gear 54 provided on a rotating shaft 55 of the telescopic driving motor. The positive and negative steering gear electrically connected with the control end of the central processing system is used for controlling the positive rotation or the negative rotation of the telescopic driving motor, so that the driving gear 54 drives the telescopic driving gear 44 meshed with the driving gear to rotate reversely or rotate positively, and the intermediate shaft fixedly connected with the telescopic rack 45 is driven to rapidly ascend or descend. According to specific use requirements, the forward and reverse steering devices can adopt two-position three-way reversing valves and are controlled by a central processing system; after the left potential is electrified, the current directly passes through the telescopic driving motor, and the telescopic driving motor rotates forwards to enable the middle column 20 to move upwards; when the right potential is electrified and the current passes through the right potential in a crossed manner, the telescopic driving motor rotates reversely to enable the middle column 20 to return.

Meanwhile, the oil inlet 50 of the middle column 20 is connected to the oil delivery line 25, and the oil delivery line 25 is connected to the hydraulic pump 23 of the power supply apparatus 8 through the two-position two-way solenoid valve 24. The oil return port 51 of the middle column 20 is connected with the oil return pipeline 29, the oil return pipeline 29 is connected with the hydraulic oil tank 22 through the same two-position two-way solenoid valve 24, and the liquid supply port of the hydraulic oil tank 22 is connected with the liquid inlet of the hydraulic pump 23. The oil inlet 50 is provided with a one-way valve 26, and the oil return port 51 is provided with a pressure limiting valve 28; the two-position two-way solenoid valve 24 is connected to a power supply 31 through a power switch 30. Therefore, after the quick driving mechanism 18 drives the middle column 20 (the first-stage reaction mechanism) to rise to the right position and needs to extend out of the top column 21 (the second-stage reaction mechanism), the hydraulic pump 23 and the two-position two-way electromagnetic valve 24 are started through the central processing system, so that the hydraulic pump 23 works and oil is delivered to the oil delivery pipeline 25; the two-position two-way solenoid valve 24 is switched to the right phase position due to the enhancement of the electrified magnetic force, and is connected with the oil pipeline 25 (the oil return pipeline 29 is temporarily cut off); hydraulic oil is charged into the hydraulic lift chamber 46 of the center pillar 20 through the oil inlet 50 and the cast-in oil passage 27 by the hydraulic pump 23 of the power supply device 8, and the top pillar 21 in the hydraulic lift chamber 46 of the center pillar 20 is further raised slowly. In addition, the check valve 26 and the pressure limiting valve 28 which are respectively arranged at the oil inlet 50 and the oil return port 51 can prevent the hydraulic system from being damaged when the pressure is overlarge, and the use reliability of the device is improved. After the stable control work is finished, the two-position two-way electromagnetic valve 24 and the hydraulic pump 23 are powered off simultaneously, the pressure limiting valve 28 is opened, and the hydraulic oil in the hydraulic lifting cavity 46 flows back to the hydraulic oil tank 22 through the oil return pipeline 29; as the pressure disappears, the roof pillars 21 will fall back into the retracted state under the weight of the truck itself.

The buffer mechanism 16 arranged at the upper end of the telescopic mechanism 17 consists of a disc-shaped buffer shell 32, and the middle part of the lower side of the buffer shell 32 is provided with a telescopic connecting groove 33 used for being connected with a telescopic connector 52 at the upper end of the top column 21; the top of the telescopic connecting groove 33 with the downward opening is provided with a bearing plate 35, and the upper side of the buffer shell 32 is provided with a fixed connecting plate 34 used for being connected with the vehicle body steel frame 6. In addition, a circular buffer clapboard 37 is arranged in a closed space enclosed by the fixed connecting plate 34, the buffer shell 32 and the bearing plate 35, and the buffer clapboard 37 divides the closed space into a buffer liquid cavity 39 and a spring cavity 40 which are arranged up and down; a plurality of groups of buffer springs 41 are arranged in the spring cavity 40, and sealing rubber rings 38 are respectively arranged between the outer ring and the inner ring of the annular buffer partition plate 37 and the inner side wall of the buffer shell 32 so as to seal the buffer liquid in the buffer liquid cavity 39.

The periphery of the pressure bearing plate 35 in the telescopic connecting groove 33 of the buffer mechanism 16 is flexibly connected with the buffer shell 32 at the telescopic connecting groove 33 through an elastic corrugated telescopic sleeve 36. A plurality of groups of vertically arranged buffer guide posts 42 are arranged on the pressure bearing plate 35 and at one side inside the buffer liquid cavity 39, and the buffer guide posts 42 are respectively matched and connected with buffer guide grooves 43 correspondingly arranged on the inner side of the fixed connecting plate 34; the movement of the bearing plate 35 is guided by the reciprocating sliding of the buffer guide post 42 in the buffer guide groove 43 inside the fixed connection plate 34, so that the bearing plate only moves up and down and does not deviate in the buffer process. The buffer mechanism 16 is connected with the upper end of the top column 21 of the telescopic mechanism 17 by utilizing the pressure bearing plate 35 in the telescopic connecting groove 33, and a buffer solution for buffering the impact force is filled in a buffer solution cavity 39 which is sealed at the upper side of a buffer clapboard 37, so that the impact from the quick driving mechanism 18 is buffered; meanwhile, when the buffer diaphragm 37 moves up and down due to the pressure of the buffer fluid on the upper side thereof, the plurality of sets of buffer springs 41 in the lower spring chamber 40 can receive the pressure from the buffer diaphragm 37, thereby further buffering. The elastic corrugated expansion sleeve 36 can cooperate with the bearing plate 35 to move up and down and seal the liquid in the buffer liquid chamber 39.

When the transverse stability control system suitable for the trailer truck is used, firstly, the horizontal sensors and the centrifugal force detectors of the two groups of symmetrically arranged detection devices 4 on the front axle 2 send signals of the inclination angle of the road surface or signals of the centrifugal force to a central processing system which is attached to a traveling computer and is used for processing data of the detection devices 4 in real time when the truck runs on the road surface with larger transverse inclination angle or a truck body turns and generates larger centrifugal force. Then, the central processing system sends a control signal to an emergency reaction device 7 arranged at the front wheel 3 (or the rear wheel 9) of the truck on the corresponding side, and a middle column 20 (a primary reaction mechanism) of a telescopic mechanism 17 is rapidly driven to extend out by a rapid driving mechanism 18, so that the integral gravity center of the truck deflects towards the inner side of a turn or the opposite direction of road surface inclination; namely: when the left turn is too sharp (the vehicle body can incline to the right), the telescopic mechanism 17 on the right side of the vehicle body is lifted; when the road surface inclines to the left (left low and right high), the telescopic mechanism 17 on the left side of the vehicle body is lifted.

After the intermediate post 20 serving as the first-stage reaction mechanism is driven by the quick drive mechanism 18 to rise to the limit position, the hydraulic pump 23 and the two-position two-way solenoid valve 24 are turned on by the central processing system, the hydraulic pump 23 is operated, the two-position two-way solenoid valve 24 is connected to the oil delivery pipe 25, hydraulic oil is filled into the hydraulic lifting cavity 46 of the intermediate post 20 through the oil inlet 50 and the inner cast oil pipe 27, and the top post 21 (second-stage reaction mechanism) in the hydraulic lifting cavity 46 is slowly lifted. Meanwhile, in the process of lifting the vehicle body steel frame 6 on the corresponding side by the telescopic mechanism 17, the impact from the quick driving mechanism 18 is effectively buffered by using the buffer solution filled in the buffer solution cavity 39 of the buffer mechanism 16 arranged at the upper end of the top column 21; when the cushion diaphragm 37 in the cushion mechanism 16 moves up and down due to the pressure of the upper cushion fluid, the cushion spring 41 in the lower spring chamber 40 of the cushion mechanism 16 receives the pressure of the cushion diaphragm 37, thereby achieving further cushioning. Therefore, the rollover condition of the truck caused by sharp turning centrifugal force or road surface inclination is prevented through the deflection of the gravity center of the truck body, and the running safety of the truck is effectively improved. When the truck runs to a stable road surface (after the stable control work is finished), the two-position two-way electromagnetic valve 24 and the hydraulic pump 23 are powered off simultaneously, the pressure limiting valve 28 is opened, hydraulic oil in the hydraulic lifting cavity 46 of the middle column 20 flows back to the hydraulic oil tank 22 through the oil return pipeline 29, the pressure in the cavity disappears, the top column 21 falls back to the initial state by the gravity of the truck, and the quick driving mechanism 18 drives the middle column 20 of the telescopic mechanism 17 to be retracted synchronously, so that the truck runs normally.

Claims (9)

1. A lateral stability control system suitable for a trailer wagon, comprising a wagon chassis (1), characterized in that: two groups of symmetrically arranged detection devices (4) are arranged on a front axle (2) of the truck chassis (1), and each detection device (4) comprises a horizontal sensor and a centrifugal force detector; the truck chassis is characterized in that emergency reaction devices (7) are symmetrically arranged at truck wheels on two sides of the truck chassis (1) respectively, the emergency reaction devices (7) are arranged between plate spring shock absorbers (5) on two sides and a truck body steel frame (6), and a driving end of each emergency reaction device (7) is connected with a power supply device (8) arranged on the truck chassis (1).

2. The lateral stability control system for a trailer truck as defined in claim 1, wherein: the centrifugal force detector comprises a detector body (10), a sliding guide groove (11) is arranged in the detector body (10), a centrifugal sliding block (12) is arranged on the sliding guide groove (11) and at one end far away from the wheels of the truck, a supporting spring (13) is arranged at the other end of the sliding guide groove (11), and the free end of the supporting spring (13) is connected with the end face of the centrifugal sliding block (12); and conductive diaphragms (14) are respectively arranged on two sides of the middle part of the sliding guide groove (11), and connecting wires (15) are respectively arranged on the conductive diaphragms (14) on the two sides.

3. The lateral stability control system for a trailer truck as defined in claim 1, wherein: emergency response device (7) include telescopic machanism (17), and the lower extreme and the plate spring bradyseism ware (5) of telescopic machanism (17) link to each other, and the upper end of telescopic machanism (17) then links to each other with automobile body steelframe (6) through buffer gear (16), and, the drive division and the quick actuating mechanism (18) of telescopic machanism (17) link to each other.

4. The lateral stability control system for a trailer truck as defined in claim 3, wherein: the buffer mechanism (16) comprises a buffer shell (32), a telescopic connecting groove (33) is arranged in the middle of the lower side of the buffer shell (32), a bearing plate (35) is arranged inside the telescopic connecting groove (33), and a fixed connecting plate (34) is arranged on the upper side of the buffer shell (32); a buffer partition plate (37) is arranged in a closed space formed by enclosing the fixed connecting plate (34), the buffer shell (32) and the bearing plate (35), the buffer partition plate (37) divides the closed space into a buffer liquid cavity (39) and a spring cavity (40) which are arranged up and down, a plurality of groups of buffer springs (41) are arranged in the spring cavity (40), and sealing rubber rings (38) are respectively arranged between the buffer partition plate (37) and the inner side wall of the buffer shell (32); the periphery of the pressure bearing plate (35) in the telescopic connecting groove (33) is flexibly connected with the buffer shell (32) at the telescopic connecting groove (33) through an elastic fold telescopic sleeve (36).

5. The lateral stability control system for a trailer truck as defined in claim 4, wherein: one side that is located buffer liquid chamber (39) on bearing plate (35) inside is provided with a plurality of groups vertical layout's buffering guide post (42), buffering guide post (42) are connected with the inboard corresponding buffering guide way (43) that sets up of fixed connection board (34) cooperation.

6. The lateral stability control system for a trailer truck as defined in claim 3, wherein: telescopic machanism (17) are including pillar (19), and the lower extreme and the plate spring bradyseism ware (5) of pillar (19) link to each other, and the upper end of pillar (19) is flexible to be provided with the telescopic shaft, the lateral part and the quick actuating mechanism (18) of telescopic shaft link to each other.

7. The lateral stability control system for a trailer truck as defined in claim 6, wherein: the telescopic shaft comprises a middle column (20), a hydraulic lifting cavity (46) is arranged inside the middle column (20), a liquid inlet and a liquid outlet at the bottom of the hydraulic lifting cavity (46) are respectively connected with two inner casting oil paths (27) arranged on a column body of the middle column (20), and the outer ends of the two inner casting oil paths (27) are respectively connected with an oil inlet (50) and an oil return port (51); a jacking column (21) is further inserted into the hydraulic lifting cavity (46) of the middle column (20), a telescopic connector (52) is arranged at the upper end of the jacking column (21), and a telescopic limiting convex edge (53) is arranged at the lower end of the jacking column (21); the lower end of the middle column (20) is inserted in a middle column insertion cavity (47) of the base column (19).

8. The lateral stability control system for a trailer truck as defined in claim 7, wherein: an oil inlet (50) on the middle column (20) is connected with an oil delivery pipeline (25), and the oil delivery pipeline (25) is connected with a hydraulic pump (23) of the power supply device (8) through a two-position two-way electromagnetic valve (24); an oil return port (51) on the middle column (20) is connected with an oil return pipeline (29), the oil return pipeline (29) is connected with a hydraulic oil tank (22) through a two-position two-way electromagnetic valve (24), and the hydraulic oil tank (22) is connected with a liquid inlet of a hydraulic pump (23); moreover, a one-way valve (26) is arranged at the oil inlet (50), and a pressure limiting valve (28) is arranged at the oil return port (51); the two-position two-way electromagnetic valve (24) is connected with a power supply (31) through a power on-off device (30).

9. The lateral stability control system for a trailer truck as defined in claim 7, wherein: the quick driving mechanism (18) comprises a telescopic rack (45) vertically arranged at the outer side part of the middle column (20), a transmission opening (48) is formed in the side wall of a middle column inserting cavity (47) of the foundation column (19) and at a position corresponding to the telescopic rack (45), a telescopic driving gear (44) is rotatably arranged in the transmission opening (48), a gear shaft of the telescopic driving gear (44) is arranged in a gear connecting shaft hole (49) of the transmission opening (48), and the telescopic driving gear (44) is meshed with the telescopic rack (45); and the telescopic driving gear (44) is also meshed with a driving gear (54) arranged on a rotating shaft (55) of a telescopic driving motor.

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