Double-steering front axle detection apparatus and four-axle heavy-truck chassis structure

Abstract

A double-steering front axle detection apparatus, comprising: a mounting box (1), wherein the mounting box (1) comprises a bottom box (11) and a top box (12), the top box (12) is fixedly arranged at the top of the bottom box (11), detection holes (121) are formed in the top box (12), and the detection holes (121) are communicated with the bottom box (11); and detection mechanisms (2), wherein each detection mechanism (2) comprises a detection plate (21) and a resistance component (22), the detection plate (21) is slidably mounted on the top box (12), the resistance component (22) is fixedly arranged at the top of the detection plate (21) and extends into the corresponding detection hole (121), and the resistance component (22) is flush with the top box (12) in the longitudinal direction. The automatic reset of the detection plates (21) is realized in the process of switching the detection plates (21) from a detection state to a locked state, and one-touch operation is convenient. Also provided is a four-axle heavy-truck chassis structure, comprising a frame (1A) and a double-steering front axle mechanism, wherein the double-steering front axle mechanism is arranged on the frame (1A).

Description

Double-steering front axle detection device and four-axle heavy truck chassis structure

[0001] TECHNICAL FIELD

[0002] The present application relates to the technical field of automobile detection, and in particular to a double-steering front axle detection device and a four-axle heavy truck chassis structure. BACKGROUND

[0003] According to specific automobile production standards, when a new vehicle is delivered or when a vehicle is subjected to annual inspection, side slip detection needs to be performed to ensure that the vehicle can be normally used. Side slip detection can help find problems in the steering system and the suspension system of the vehicle chassis structure, and ensure the driving stability and safety of the vehicle.

[0004] In related technology, a vehicle double-steering side slip detection device includes a detection platform, a side slip plate, a measuring device, and a locking device. The side slip plate is slidingly arranged on the detection platform. When the measuring device is used, the wheels of the vehicle travel through the side slip plate, the displacement of the side slip plate is measured by the measuring device, and the side slip detection of the vehicle is realized. The locking device is used to lock the side slip plate when the measuring device is not used.

[0005] The locking device in the above vehicle double-steering side slip detection device only has a locking function. When detection needs to be performed again, a resetting device needs to be additionally arranged to reset the side slip plate. How to optimize the resetting adjustment to realize the unity and continuity of automatic resetting and automatic locking needs to be further researched.

[0006] Therefore, it is necessary to provide a new double-steering front axle detection device to solve the above technical problems. SUMMARY

[0007] The present application provides a double-steering front axle detection device, which solves the technical problem that the resetting and locking operation of the vehicle double-steering side slip detection device in related technology needs to be improved.

[0008] To solve the above technical problem, the double-steering front axle detection device provided by the present application includes:

[0009] A mounting box, the mounting box includes a bottom box and a top box, the top box is fixedly arranged on the top of the bottom box, a detection hole is arranged on the top box, and the detection hole, the top box, and the bottom box are sequentially communicated;

[0010] A detection mechanism, the detection mechanism includes a detection plate and a resistance piece, the detection plate is slidingly arranged in the top box, and the detection plate covers the detection hole, the resistance piece is fixedly arranged on the top of the detection plate and extends into the detection hole, the resistance piece is flush with the top box in the longitudinal direction, and an active gap is prearranged between the resistance piece and the top box in the transverse direction.

[0011] a telescopic mechanism, the telescopic mechanism comprising a supporting pipe, a transmission member and a buffer shaft, the supporting pipe being fixedly arranged in the bottom box, two ends of the transmission member being hingedly connected with the detection plate and the buffer shaft respectively, and the buffer shaft being inserted into the supporting pipe;

[0012] a locking mechanism, the locking mechanism comprising a telescopic member, a connecting plate and a locking member, the telescopic member being fixedly arranged on the top box, the connecting plate being fixedly arranged on a telescopic end of the telescopic member, the locking member being fixedly arranged on the connecting plate, a bottom of the detection plate being provided with a locking groove, the locking groove being arranged towards the locking member;

[0013] a connecting mechanism, the connecting mechanism being used for drivingly connecting the buffer shaft and the connecting plate;

[0014] a displacement detection mechanism, the displacement detection mechanism being arranged in the top box and arranged towards the detection plate;

[0015] wherein the detection hole, the detection mechanism, the telescopic mechanism, the locking member and the displacement detection mechanism are arranged one by one and integrally form a detection assembly, the detection assembly being arranged at least twice, and the two detection assemblies are arranged in a transverse direction.

[0016] Preferably, a top of the resistance member is provided with an anti-skid pattern.

[0017] Preferably, a top of the top box is provided with a first detection range, a second detection range and a buffer range, the buffer range being located between the first detection range and the second detection range.

[0018] wherein two detection assemblies are arranged in the first detection range correspondingly, two detection assemblies are arranged in the second detection range correspondingly, and the four connecting mechanisms are all connected with the same connecting plate.

[0019] Preferably, the connecting mechanism comprises a connecting box, a partition plate and a second roller shaft, the connecting box being fixedly arranged in the bottom box, the partition plate being fixedly arranged in the connecting box, and the second roller shaft being rotatably arranged in the connecting box.

[0020] the locking mechanism further comprising an elastic buffer member and a damping plate, a top of the elastic buffer member being fixedly connected with the connecting plate, a bottom of the elastic buffer member being fixedly connected with the damping plate, and the damping plate being slidingly connected between the connecting box and the partition plate.

[0021] The telescopic mechanism further comprises a nylon rope and a first roller, the first roller is rotatably installed in the support pipe, one end of the nylon rope is arranged on the first roller after passing through the support pipe and is fixedly connected with the bottom of the buffer shaft, the other end of the nylon rope is arranged on the second roller after passing through the connecting box and is fixedly connected with the bottom of the damping plate, the number of the telescopic mechanism, the second roller, the elastic buffer and the damping plate is equal, and the four are arranged in one-to-one correspondence.

[0022] Preferably, the number of the detection assemblies is four, and the partition plate is in a cross shape.

[0023] Preferably, the elastic buffer is a spring telescopic structure, and the elastic buffer elastically connects the damping plate and the connecting plate.

[0024] Preferably, the elastic buffer comprises a T-shaped shaft, a connecting cover and a spring piece, the bottom end of the T-shaped shaft is slidably installed in the connecting cover, the top end of the T-shaped shaft is fixedly connected with the connecting plate, the connecting cover is fixedly connected with the damping plate, and the spring piece is sleeved on the T-shaped shaft and can elastically connect the T-shaped shaft and the connecting cover.

[0025] To solve the above technical problems, the application further provides a four-axle heavy truck chassis structure, which comprises a frame and a double-steering front axle mechanism, and the double-steering front axle mechanism is arranged on the frame.

[0026] Preferably, the double-steering front axle mechanism comprises a balance suspension, an axle mechanism and a steering mechanism, the axle mechanism is installed at the front end of the frame through the balance suspension, and the steering mechanism is installed on the axle mechanism.

[0027] Preferably, the steering mechanism comprises a steering swing arm, a steering straight pull rod, a trapezoidal arm, a steering oil cylinder and a steering cross pull rod.

[0028] The steering swing arm is rotatably installed on the axle mechanism, the bottom end of the steering swing arm is hingedly connected with the steering straight pull rod, the trapezoidal arm is installed on the wheel of the axle mechanism, the steering straight pull rod is hingedly connected with the trapezoidal arm, the steering oil cylinder is installed on the balance suspension and connected with the trapezoidal arm, and the steering cross pull rod is hingedly connected with two trapezoidal arms on one axle mechanism.

[0029] Compared with the related art, the double-steering front axle detection device has the following beneficial effects:

[0030] After the detection of the detection plate is completed, the telescopic part is started, the telescopic part drives the connecting plate to move upwards, the connecting plate drives the locking part to move upwards and towards the position of the locking groove;

[0031] During the movement of the connecting plate, the connecting plate drives the buffer shaft to move downwards synchronously through the connecting mechanism, when the buffer shaft moves downwards, the detection plate can be pulled towards the initial detection position synchronously through the transmission part, so as to reset the detection plate automatically, at the same time when the detection plate is reset automatically, the locking groove is aligned above the locking part;

[0032] When the detection plate is reset to the initial detection position, the telescopic part can also drive the locking part to move upwards and insert into the locking groove, so as to lock the detection plate after detection.

[0033] Finally, the automatic reset of the detection plate is realized during the switching of the detection plate from the detection state to the locking state. The need for manual debugging and maintenance is reduced, and one-key operation is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0035] Fig. 1 is a three-dimensional view of the double-steering front axle detection device provided by the present application;

[0036] Fig. 2 is a right view of the A-A section of Fig. 1;

[0037] Fig. 3 is an application scenario diagram of the double-steering front axle detection device provided by the present application;

[0038] Fig. 4 is a structural schematic diagram of the elastic buffer part shown in Fig. 3;

[0039] Fig. 5 is a structural schematic diagram of the detection plate in an unlocked state shown in Fig. 3;

[0040] Fig. 6 is a principle diagram of the double-steering front axle detection device provided by the present application, wherein (a1) is a front view of the detection plate in a locked state, (a2) is a front view of the detection plate in a first unlocked state, and (a3) is a front view of the detection plate in a second unlocked state;

[0041] Figure 7 is a schematic diagram of the double steering front axle detection device provided by the present application, wherein (b1) is a front view of the telescopic member in a fully extended state, (b2) is a front view of the telescopic member in a first retracted state, (b3) is a front view of the telescopic member in a second retracted state, (b4) is a front view of the telescopic member in a third retracted state, (c1) is a sectional view of the elastic buffer member in the state of (b1), (c2) is a sectional view of the elastic buffer member in the state of (b2), (c3) is a sectional view of the elastic buffer member in the state of (b3), and (c4) is a sectional view of the elastic buffer member in the state of (b4);

[0042] Figure 8 is a front view of the four-axle heavy truck chassis structure provided by the present application;

[0043] Figure 9 is a top view of the whole shown in Figure 8;

[0044] Figure 10 is a three-dimensional view of the steering mechanism shown in Figure 8;

[0045] Figure 11 is a top view of the whole shown in Figure 10;

[0046] Figure 12 is another structural schematic diagram of the steering mechanism.

[0047] Explanation of reference numerals:

[0048] 100, ground;

[0049] 1, mounting box; 11, bottom box; 12, top box; 121, detection hole;

[0050] 110, first detection range; 120, second detection range; 130, buffer range;

[0051] 2, detection mechanism; 21, detection plate; 22, resistance member; 211, locking groove;

[0052] 3, telescopic mechanism; 31, support pipe member; 32, transmission member; 33, buffer shaft; 35, nylon rope; 36, first roller;

[0053] 4, connecting mechanism; 41, connecting box; 42, partition plate; 43, second roller;

[0054] 5, locking mechanism; 51, telescopic member; 52, connecting plate; 53, elastic buffer member; 54, damping plate; 55, locking member;

[0055] 531, T-shaped shaft; 532, connecting cover; 533, spring member;

[0056] 6, displacement detection mechanism;

[0057] 1A, vehicle frame; 2A, balance suspension; 3A, axle mechanism; 4A, steering mechanism;

[0058] 41A, steering swing arm; 42A, steering straight pull rod; 43A, trapezoidal arm; 44A, steering cylinder; 45A, steering cross pull rod.

[0059] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0061] The present application provides a double-steering front axle detection device.

[0062] Please refer to FIG. 1 to FIG. 2, in an embodiment of the present application, the double-steering front axle detection device comprises:

[0063] The mounting box 1 comprises a bottom box 11 and a top box 12, the top box 12 is fixedly arranged on the top of the bottom box 11, a detection hole 121 is formed in the top box 12, and the detection hole 121, the top box 12 and the bottom box 11 are sequentially communicated;

[0064] The detection mechanism 2 comprises a detection plate 21 and a resistance piece 22, the detection plate 21 is slidingly arranged in the top box 12, and the detection plate 21 covers the detection hole 121, the resistance piece 22 is fixedly arranged on the top of the detection plate 21 and extends into the detection hole 121, the resistance piece 22 is flush with the top box 12 in the longitudinal direction, and a movable gap is provided between the resistance piece 22 and the top box 12 in the transverse direction;

[0065] The telescopic mechanism 3 comprises a supporting pipe 31, a transmission piece 32 and a buffer shaft 33, the supporting pipe 31 is fixedly arranged in the bottom box 11, the two ends of the transmission piece 32 are respectively hinged to the detection plate 21 and the buffer shaft 33, and the buffer shaft 33 is inserted into the supporting pipe 31;

[0066] The locking mechanism 5 comprises a telescopic piece 51, a connecting plate 52 and a locking piece 55, the telescopic piece 51 is fixedly arranged on the top box 12, the connecting plate 52 is fixedly arranged on the telescopic end of the telescopic piece 51, the locking piece 55 is fixedly arranged on the connecting plate 52, a locking groove 211 is formed in the bottom of the detection plate 21, and the locking groove 211 is arranged towards the locking piece 55;

[0067] A connecting mechanism 4 is arranged to drive connect the buffer shaft 33 and the connecting plate 52;

[0068] A displacement detection mechanism 6 is arranged in the top box 12 and faces the detection plate 21;

[0069] The detection hole 121, the detection mechanism 2, the telescopic mechanism 3, the locking piece 55 and the displacement detection mechanism 6 are arranged in one-to-one correspondence and form a detection assembly as a whole, and at least two detection assemblies are arranged in the lateral direction.

[0070] Please refer to FIG. 2 and FIG. 3, the installation box 1 is embedded in the ground 100, and the top surface of the installation box 1 is in the same plane as the ground 100. Taking the top surface of the top box 12 as the reference plane, the longitudinal direction is the driving direction of the vehicle, and the lateral direction is the vertical direction of the longitudinal direction.

[0071] Please refer to FIG. 2 again, it is defined that when the locking piece 55 is inserted into the locking groove 211, the double-steering front axle detection device is in a locked state.

[0072] Please refer to FIG. 5, when the locking piece 55 is separated from the locking groove 211 and enters the bottom box 11, the double-steering front axle detection device is in a detection state. At this time, the detection plate 21 and the resistance piece 22 are both located at the initial detection position.

[0073] Please refer to FIG. 6, when the double-steering front axle detection device switches from the locked state to the detection state, the connecting mechanism 4 will not drive the buffer shaft 33 to move.

[0074] Please refer to FIG. 7, when the double-steering front axle detection device switches from the detection state to the locked state, the connecting plate 52 drives the buffer shaft 33 to move through the connecting mechanism 4, so as to reset the detection plate 21 and the resistance piece 22 to the initial detection position.

[0075] In the invention, the displacement detection mechanism 6 can include a laser ranging sensor. When the double-steering front axle detection device is in the detection state, the laser ranging sensor is used to measure the displacement of the detection plate 21. The side slip amount of the vehicle is analyzed and calculated through the displacement, so as to detect whether there is a deviation phenomenon during the driving of the vehicle, so as to judge whether the product is qualified.

[0076] Detection principle (in the detection state);

[0077] Please refer to FIG. 2 and FIG. 3, during the driving of the vehicle, the surface of the ground 100 moves towards the installation box 1;

[0078] During the driving process, the wheels are first aligned on the corresponding resistance pieces 22 and detection plates 21;

[0079] After alignment, the automobile wheels travel along a straight line, and the steering wheel is maintained in the center position;

[0080] The automobile is smoothly driven along the preset indication line at a preset speed, and during the driving process, the steering wheel is not allowed to be turned;

[0081] When the steering wheels of the automobile pass through the resistance pieces 22 and the detection plates 21, the lateral side slip amount is measured;

[0082] If the lateral side slip amount is less than or equal to a preset displacement amount, it is considered to be qualified.

[0083] The resetting principle is as follows:

[0084] Please refer to FIG. 7. After the detection of the detection plate 21 is completed, the telescopic piece 51 is started, the telescopic piece 51 drives the connecting plate 52 to move upwards, and the connecting plate 52 drives the locking piece 55 to move upwards and towards the position of the locking groove 211;

[0085] During the upward movement of the connecting plate 52, the connecting plate 52 synchronously drives the buffer shaft 33 to move downwards through the connecting mechanism 4, and when the buffer shaft 33 moves downwards, it can synchronously pull the detection plate 21 towards the detection initial position through the transmission piece 32, so as to automatically reset the detection plate 21. At the same time that the detection plate 21 is automatically reset, the locking groove 211 is aligned above the locking piece 55;

[0086] When the detection plate 21 is reset to the detection initial position, the telescopic piece 51 can also continue to drive the locking piece 55 to move upwards and insert into the locking groove 211, so as to lock the detected detection plate 21.

[0087] Finally, the automatic resetting of the detection plate 21 during the switching of the detection plate 21 from the detection state to the locking state is realized, the need for manual debugging and maintenance is reduced, and one-key operation is facilitated.

[0088] The two coaxial wheels can be detected in sequence. After the detection of the wheels on the same bearing is completed, the equipment is reset once and then the wheels on the other bearing are detected again, so that the detection of the wheels on the double steering bearings can be realized.

[0089] Please refer to FIG. 1 again. The top of the resistance piece 22 is provided with anti-skid lines. The stability when the automobile wheels contact the resistance piece 22 is facilitated, and the anti-skid property is increased.

[0090] The top of the top box 12 is provided with a first detection range 110, a second detection range 120 and a buffer range 130, the buffer range 130 is located between the first detection range 110 and the second detection range 120;

[0091] Among them, two detection assemblies are correspondingly arranged in the first detection range 110, and two detection assemblies are correspondingly arranged in the second detection range 120; four connecting mechanisms 4 are connected to the same connecting plate 52.

[0092] The detection of four wheels can be realized at the same time; after detection, the connecting plate 52 is lifted and adjusted by the telescopic part 51, and the synchronous reset and locking of the four detection assemblies are realized at the same time.

[0093] Detection principle:

[0094] When the side slip detection of four wheels is needed at the same time, the equipment is maintained in the locked state first;

[0095] When the first two wheels drive through the first detection range 110 and completely enter the buffer range 130, the equipment is unlocked by the telescopic part 51;

[0096] After the equipment is unlocked, the four wheels continue to drive through the top of the resistance part 22, the first two wheels pass through the surface of the resistance part 22 in the second detection range 120; the last two wheels pass through the surface of the resistance part 22 in the first detection range 110, so as to realize the synchronous detection of the four wheels.

[0097] In an embodiment, the connecting mechanism 4 is directly connected with the buffer shaft 33 and the connecting plate 52; so as to realize that the connecting mechanism 4 drives the buffer shaft 33 and the connecting plate 52.

[0098] Specifically, the connecting mechanism 4 can include an elastic rope and a pulley, the pulley is installed in the bottom box 11, the elastic rope is arranged on the pulley, one end of the elastic rope penetrates through the support pipe 31 and is connected with the buffer shaft 33; the other end of the elastic rope is connected with the connecting plate 52.

[0099] Because the elastic rope has a certain elastic adjustment length, after the connecting plate 52 pulls the buffer shaft 33 to reset downward by the elastic rope, the connecting plate 52 can continue to move upward and drive the locking part 55 to stably move upward and insert into the locking groove 211.

[0100] In another embodiment, the connecting mechanism 4 is connected with the buffer shaft 33 and the connecting plate 52 respectively through auxiliary structures, so as to realize that the connecting mechanism 4 drives the buffer shaft 33 and the connecting plate 52.

[0101] Specifically, referring to Fig. 2 again, the connecting mechanism 4 comprises a connecting box 41, a partition plate 42 and a second roller 43, the connecting box 41 is fixedly arranged in the bottom box 11, the partition plate 42 is fixedly arranged in the connecting box 41, and the second roller 43 is rotatably arranged in the connecting box 41.

[0102] The locking mechanism 5 further comprises an elastic buffer 53 and a damping plate 54, the top of the elastic buffer 53 is fixedly connected with the connecting plate 52, the bottom of the elastic buffer 53 is fixedly connected with the damping plate 54, and the damping plate 54 is slidingly connected between the connecting box 41 and the partition plate 42.

[0103] The telescopic mechanism 3 further comprises a nylon rope 35 and a first roller 36, the first roller 36 is rotatably arranged in the support pipe 31, one end of the nylon rope 35 is arranged on the first roller 36 after passing through the support pipe 31 and is fixedly connected with the bottom of the buffer shaft 33, the other end of the nylon rope 35 is arranged on the second roller 43 after passing through the connecting box 41 and is fixedly connected with the bottom of the damping plate 54, the number of the telescopic mechanism 3, the second roller 43, the elastic buffer 53 and the damping plate 54 is equal, and they are arranged in one-to-one correspondence.

[0104] When the number of the detection assemblies is four, i.e. the number of the telescopic mechanisms 3 is four, the partition plate 42 is in the shape of a cross.

[0105] In this embodiment, there is friction between the damping plate 54 and the connecting box 41 and the partition plate 42, and the three form a sliding damping structure. Although the damping plate 54 is slidingly connected between the connecting box 41 and the partition plate 42, the sliding lifting displacement of the damping plate 54 is limited due to the friction.

[0106] In the process of using the device, the nylon rope 35 is always maintained in a tensioned state, and when the double steering front axle detection device is in a detection state, the nylon rope 35 has a certain limiting effect on the transverse displacement of the detection plate 21, so as to avoid that the detection plate 21 deviates from the initial detection position due to slight external force. The specific detection and resetting principles are described in detail below.

[0107] In an alternative way of this embodiment, the elastic buffer 53 is a spring telescopic structure, and the elastic buffer 53 elastically connects the damping plate 54 and the connecting plate 52.

[0108] In another alternative mode of the embodiment, please refer to Fig. 2 and Fig. 4, the elastic buffer 53 comprises a T-shaped shaft 531, a connecting cover 532 and a spring member 533, the bottom end of the T-shaped shaft 531 is slidingly installed in the connecting cover 532, the top end of the T-shaped shaft 531 is fixedly connected with the connecting plate 52, the connecting cover 532 is fixedly connected with the damping plate 54, and the spring member 533 is sleeved on the T-shaped shaft 531 and can elastically connect the T-shaped shaft 531 and the connecting cover 532.

[0109] The working principle of the double-steering front axle detection device provided by the application is as follows:

[0110] Please refer to Fig. 6, the unlocking principle of the detection plate 21 is as follows:

[0111] As shown in (a1) of Fig. 6, it is defined that, in the initial state, the locking member 55 is in the locked state, the detection plate 21 is located at the detection initial position, and the transmission member 32 is in the vertical state.

[0112] In combination with (a1) to (a3) of Fig. 6, when the detection plate 21 needs to be used, the telescopic member 51 is started, the connecting plate 52 is driven to move downward, the connecting plate 52 drives the elastic buffer 53 to contract at the same time, and the damping plate 54 remains stationary, so as to maintain the stability of the detection plate 21 at the detection initial position.

[0113] As shown in (a3) of Fig. 6, the locking member 55 is in the unlocked state, the detection plate 21 is located at the detection initial position, and the transmission member 32 remains in the vertical state.

[0114] Please refer to Fig. 7, the reset principle of the detection plate 21 after detection is as follows:

[0115] As shown in (b1) and (c1) of Fig. 7, it is defined that, after detection, the detection plate 21 is in the offset state, the locking member 55 is in the unlocked state, the transmission member 32 is in the inclined state, and the spring member 533 is in the natural state.

[0116] In combination with (b1) to (b3) and (c1) to (c3) of Fig. 7, when the detection plate 21 needs to be reset and adjusted, the telescopic member 51 is started, the connecting plate 52 is driven to move upward, the connecting plate 52 drives the locking member 55 to move upward on one hand and drives the T-shaped shaft 531 to move upward on the other hand.

[0117] After the T-shaped shaft 531 moves up and contacts the spring member 533, the spring member 533 is compressed for the first time, and overcomes the resistance of the damping plate 54, drives the connecting cover 532 to move up, the connecting cover 532 drives the damping plate 54 to move up, the damping plate 54 pulls the buffer shaft 33 to move down through the nylon rope 35, and the buffer shaft 33 pulls the bottom end of the transmission member 32 to move down, and the transmission member 32 moves down at the same time, drives the detection plate 21 to move and move towards the initial detection position;

[0118] When the detection plate 21 moves to the initial detection position, the locking slot 211 is automatically aligned above the locking member 55, and an active gap is left between the locking member 55 and the detection plate 21;

[0119] As shown in (b3) and (c3) of FIG. 7, the detection plate 21 is located at the initial detection position, the locking member 55 is in the unlocked state, the transmission member 32 is in the vertical state, and the spring member 533 is in the first compressed state;

[0120] When it is needed to continue to detect the next group of double steering shaft automobile, the telescopic member 51 is controlled to extend to the state of the above (b1);

[0121] When it is needed to lock the detection plate 21, referring to (b3) to (b4) and (c3) to (c4) of FIG. 8, the telescopic member 51 drives the connecting plate 52 to continue to move up, the connecting plate 52 drives the locking member 55 to continue to move up, until the locking member 55 is completely inserted into the locking slot 211, and the stable locking of the detection plate 21 is realized; in order to ensure that the damping plate 54 does not rise again in the process, a hook plate (not shown in the figure) can be arranged on the top of the partition plate 42, so as to realize the upward limiting of the damping plate 54.

[0122] As shown in (b4) and (c4) of FIG. 7, the detection plate 21 is located at the initial detection position, the locking member 55 is in the locked state, the transmission member 32 is in the vertical state, and the spring member 533 is in the second compressed state;

[0123] Finally, the detection plate 21 is in the locked state, the telescopic member 51 drives the connecting plate 52 to move down, the detection plate 21 switches from the locked state to the detection state, and can be used for the sideslip detection of the vehicle;

[0124] When the detection plate 21 is in the detection state, the telescopic member 51 drives the connecting plate 52 to move down, the detection plate 21 switches from the detection state to the locked state, and in the switching process, the automatic upward movement of the locking member 55 and the locking limiting between the locking member 55 and the detection plate 21 are realized, and the reset adjustment of the detection device is used;

[0125] Make the device can realize one key reset and lock, and reset precision, long service life, reduce the artificial debugging.

[0126] The application also provides a four-axle heavy truck chassis structure.

[0127] Please refer to Figure 8 and Figure 9, the four-axle heavy truck chassis structure includes a frame 1A and a double steering front axle mechanism, the double steering front axle mechanism is arranged on the frame 1A, wherein the double steering front axle mechanism uses the double steering front axle detection device for side slip detection.

[0128] Wherein, the specific structure of the double steering front axle detection device refers to the above-mentioned embodiments, since the double steering front axle detection device adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0129] The double steering front axle mechanism is a double steering through type leaf spring balance suspension configuration.

[0130] The double steering front axle mechanism includes a balance suspension 2A, an axle mechanism 3A and a steering mechanism 4A; the axle mechanism 3A is installed on the front end of the frame 1A through the balance suspension 2A, and the steering mechanism 4A is installed on the axle mechanism 3A.

[0131] Specifically, the axle mechanism 3A is provided with four, two of which are arranged at the head of the frame 1A, and the other two are arranged at the tail of the frame 1A. Adjacent two axle mechanisms 3A are arranged in parallel.

[0132] The steering mechanism 4A is provided with two, which are connected to the two balance suspensions 2A located at the head of the frame 1A respectively.

[0133] The steering mechanism 4A is used for synchronously controlling four wheels to adjust the steering.

[0134] In order to improve the whole vehicle load and reduce the axle load, the four-axle heavy truck chassis structure of heavy truck generally adopts double front axle structure. The double front axle system is a double steering through type leaf spring balance suspension configuration (Fig. 11, Fig. 12), which realizes the relative balance and synchronous steering function of the motion load of the double front axle system, solves the problem of load concentration of independent suspension combined steering double front axle structure in complex road conditions, and effectively improves the safety and stability of four-axle vehicle.

[0135] Please refer to Figure 10 and Figure 11, the steering mechanism 4A includes a steering swing arm 41A, a steering straight pull rod 42A, a trapezoidal arm 43A, a steering oil cylinder 44A and a steering cross pull rod 45A;

[0136] The turning swing arm 41A is rotatably installed on the axle mechanism 3A, the bottom end of the turning swing arm 41A is hinged with the turning straight pull rod 42A, the trapezoidal arm 43A is installed on the axle of the axle mechanism 3A, the turning straight pull rod 42A is hinged with the trapezoidal arm 43A, the turning oil cylinder 44A is installed on the balance suspension 2A and connected with the trapezoidal arm 43A, and the turning cross pull rod 45A is hinged with two trapezoidal arms 43A on one axle mechanism 3A.

[0137] The two axle mechanisms 3A (one axle and two axles) are elastically connected with the vehicle frame 1A through the balance suspension 2A, both left and right ends of the two axle mechanisms 3A are provided with one turning oil cylinder 44A, one end of the turning oil cylinder 44A is connected with the vehicle frame 1A, the other end is connected with the trapezoidal arm 43A, the turning oil cylinder 44A transmits the turning action and the turning torque to the trapezoidal arm 43A through hydraulic control, and then drives the steering knuckle through the trapezoidal arm 43A, and further drives the wheel to turn.

[0138] One end of the turning cross pull rod 45A is hinged with the turning trapezoidal arm 43A of the left wheel of the axle mechanism 3A, and the other end is hinged with the turning trapezoidal arm 43A of the right wheel of the axle mechanism 3A, and the toe angle of the wheel is controlled by adjusting the length of the turning cross pull rod, so as to ensure that the left and right wheels turn in accordance with the Ackermann law.

[0139] In the embodiment, the turning angles of the one axle and the two axles also need to meet the motion coordination relationship, so as to ensure that the four tires all perform pure rolling, the mounting seat of the turning swing arm 41A is bolted with the vehicle frame 1A and is installed between the one axle and the two axles, and is closer to the one axle (front end), and the length of the turning straight pull rod 42A at the front end is shorter than that of the turning straight pull rod 42A at the rear end.

[0140] The above structure is used on the mine truck, the complex structure of the conventional turning system is simplified, and the comfort and reliability of the driver's turning operation are improved under the harsh working conditions in the mine.

[0141] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application, any equivalent structural transformation made on the basis of the concept of the present application, the contents of the specification and the drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A dual steering front axle detection device, characterized by, The utility model provides a kind of detection device, including: Mounting box, the mounting box includes bottom box and top box, the top box is fixed in the top of the bottom box, detection hole is opened on the top box, the detection hole, the top box and the bottom box are communicated sequentially; Detection mechanism, the detection mechanism includes detection plate and resistance piece, the detection plate is slidably installed in the top box, and the detection plate covers the detection hole, the resistance piece is fixed on the top of the detection plate and extends into the detection hole, the resistance piece is flush with the top box along the longitudinal direction, and a movable gap is provided between the resistance piece and the top box along the transverse direction; Telescopic mechanism, the telescopic mechanism includes support pipe, transmission part and buffer shaft, the support pipe is fixed in the bottom box, the transmission part is hingedly connected to the detection plate and the buffer shaft at both ends, and the buffer shaft is inserted into the support pipe; Locking mechanism, the locking mechanism includes telescopic piece, connecting plate and locking piece, the telescopic piece is fixed on the top box, the connecting plate is fixed on the telescopic end of the telescopic piece, and the locking piece is fixed on the connecting plate, the bottom of the detection plate is provided with a locking slot, and the locking slot is arranged towards the locking piece; Connecting mechanism, the connecting mechanism is used for drivingly connecting the buffer shaft and the connecting plate; Displacement detection mechanism, the displacement detection mechanism is installed in the top box and arranged towards the detection plate; Wherein, the detection hole, detection mechanism, the telescopic mechanism, the locking piece and the displacement detection mechanism are one-to-one corresponding and form a detection assembly as a whole, and the detection assembly is provided with at least two, and the two detection assemblies are arranged at intervals along the transverse direction.

2. The dual steering front axle detection apparatus of claim 1, wherein The top of the resistance piece is provided with anti-skid lines.

3. The dual steering front axle detection apparatus of claim 1, wherein The top of the top box is provided with a first detection range, a second detection range and a buffer range, and the buffer range is located between the first detection range and the second detection range. Wherein, two detection assemblies are correspondingly arranged in the first detection range, and two detection assemblies are correspondingly arranged in the second detection range; four connecting mechanisms are connected to the same connecting plate.

4. The dual steering front axle detection apparatus of claim 1, wherein The connecting mechanism includes a connecting box, a partition plate and a second roller, the connecting box is fixed in the bottom box, the partition plate is fixed in the connecting box, and the second roller is rotatably installed in the connecting box. The locking mechanism further includes an elastic buffer and a damping plate, the top of the elastic buffer is fixedly connected to the connecting plate, the bottom of the elastic buffer is fixedly connected to the damping plate, and the damping plate is slidably connected between the connecting box and the partition plate. The telescopic mechanism further includes a nylon rope and a first roller, the first roller is rotatably installed in the support pipe, one end of the nylon rope is arranged on the first roller after passing through the support pipe, and the bottom of the buffer shaft is fixedly connected to the other end of the nylon rope, the other end of the nylon rope is arranged on the second roller after passing through the connecting box, and the bottom of the damping plate is fixedly connected to the other end of the nylon rope, the number of the telescopic mechanism, the second roller, the elastic buffer and the damping plate is equal, and they are one-to-one corresponding.

5. The dual steering front axle detection apparatus of claim 4, wherein The number of the detection assembly is four, and the partition plate is in the shape of a cross.

6. The dual steering front axle detection apparatus of claim 4, wherein The elastic buffer is a spring telescopic structure, and the elastic buffer elastically connects the damping plate and the connecting plate.

7. The dual steering front axle detection apparatus of claim 4, wherein The elastic buffer comprises a T-shaped shaft, a connecting cover and a spring member, the bottom end of the T-shaped shaft is slidingly installed in the connecting cover, the top end of the T-shaped shaft is fixedly connected with the connecting plate, the connecting cover is fixedly connected with the damping plate, the spring member is sleeved on the T-shaped shaft, and the spring member can elastically connect the T-shaped shaft and the connecting cover.

8. A four-axle heavy-duty truck chassis structure, characterized by The four-axle heavy truck chassis structure comprises a frame and a double-steering front axle mechanism, and the double-steering front axle mechanism is arranged on the frame; wherein the double-steering front axle mechanism uses the double-steering front axle detection device according to any one of claims 1-7 to detect side slip.

9. The four-axle heavy-duty truck chassis structure of claim 8, wherein, The double-steering front axle mechanism comprises a balance suspension, an axle mechanism and a steering mechanism; the axle mechanism is installed on the front end of the frame through the balance suspension, and the steering mechanism is installed on the axle mechanism.

10. The four-axle heavy-duty truck chassis structure of claim 9, wherein, The steering mechanism comprises a steering swing arm, a steering straight pull rod, a ladder arm, a steering oil cylinder and a steering cross pull rod; the steering swing arm is rotationally installed on the axle mechanism, the bottom end of the steering swing arm is hingedly connected with the steering straight pull rod, the ladder arm is installed on the wheel of the axle mechanism, the steering straight pull rod is hingedly connected with the ladder arm, the steering oil cylinder is installed on the balance suspension and connected with the ladder arm, and the steering cross pull rod is hingedly connected with two ladder arms on one axle mechanism.

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