Large semi-trailer translation mechanism and method of use thereof

Abstract

The present disclosure relates to a large semi-trailer translation mechanism and a method thereof. The large semi-trailer translation mechanism comprises a connecting support, a first walking mechanism and a second walking mechanism arranged side by side; the first walking mechanism and the second walking mechanism each comprise a smooth foot, a linear motion driving device and a plurality of mutually parallel connecting rods; the smooth foot is parallel to the connecting support; the first ends of the plurality of connecting rods are hinged to the connecting support, and the second ends are hinged to the smooth foot; the first end of the linear motion driving device is hinged to the lower surface of the connecting support, and the second end is hinged to the rod body of the connecting rod to adjust the included angle between the connecting rod and the connecting support; in the case that the smooth foot of the first walking mechanism and the smooth foot of the second walking mechanism are located at the same horizontal plane, the two linear motion driving devices form a central symmetric structure. The large semi-trailer translation mechanism of the present disclosure has simple structure, good control performance, stable vehicle translation, precise translation distance, and can realize bidirectional translation.

Description

Technical Field

[0001] This disclosure relates to auxiliary devices for lifting, translating, and steering large semi-trailers, and particularly to a translating mechanism for large semi-trailers and its usage method. Background Technology

[0002] With the technological advancements in transport vehicles, their tonnage and length are increasing. However, the existing road network in China cannot fully meet the demands of these large vehicles. When some extra-long vehicles travel on narrow roads, steering becomes extremely challenging, sometimes even resulting in a dilemma. This is especially true for semi-trailer vehicles, whose running gear generally lacks active steering capabilities, necessitating an auxiliary steering device.

[0003] The large semi-trailer disclosed herein is a special cargo and equipment transport vehicle with a total length exceeding 20 meters. It is difficult to turn when driving on highways, especially when driving on narrow sections of road without auxiliary equipment, making it virtually impossible to turn.

[0004] The invention patent with publication number CN105539389A discloses a device for turning and longitudinally translating large vehicles in place. The device is designed with leveling outriggers, a turntable, and translation guide rails. It effectively solves the problem that vehicles are difficult to turn normally due to the small turning radius of the road or the constraints of space conditions without changing the original structure of the vehicle. However, the device has a relatively complex structure, high cost, and requires a large installation space.

[0005] The invention patent with publication number CN104609335A discloses a multifunctional vehicle lifting, steering, moving, and obstacle-crossing device. This device is applied to the overall lifting, rotation, and translation of small cars. It can manually or automatically perform functions such as lifting, rotating, and moving the vehicle through limited or wireless control methods. It effectively overcomes the shortcomings of vehicle design, which can only move forward and backward, turn left front and left rear, and right front and right rear, and cannot achieve four wheels off the ground, side movement of the whole vehicle, rotation on the spot, pass through narrow roads, cross wide ditches, and overcome tall and narrow obstacles. It improves the vehicle's maneuverability. However, the system is relatively complex and costly.

[0006] In summary, the existing technologies for vehicle steering and movement devices are complex in structure, high in cost, poor in reliability, complicated to operate, and occupy a large space. They require lifting the entire vehicle when steering, which poses a risk of rollover. Moreover, they are mainly designed for small cars or ordinary trucks and are difficult to adapt to the steering of extra-long large semi-trailers. Summary of the Invention

[0007] Technical issues:

[0008] Existing technologies involve vehicle steering and movement devices with complex structures, high costs, and poor reliability.

[0009] Technical solution:

[0010] On one hand, a large semi-trailer translation mechanism is provided. It includes: a connecting support, a first traveling mechanism and a second traveling mechanism arranged side-by-side; the connecting support is horizontally positioned; both the first and second traveling mechanisms include smooth legs, a linear motion drive device, and multiple pairs of parallel connecting rods; the smooth legs are parallel to the connecting support; the first ends of the multiple pairs of connecting rods are hinged to the connecting support, and the second ends of the multiple pairs of connecting rods are hinged to the smooth legs, so that the smooth legs can swing along their length in a first vertical plane; the linear motion drive device is located in the first vertical plane; the first end of the linear motion drive device is hinged to the connecting support. On the lower surface of the support, the second end of the linear motion drive device is hinged to the rod body of the connecting rod to adjust the angle between the connecting rod and the connecting support, thereby adjusting the distance between the smooth support leg and the connecting support; the linear motion drive device of the first walking mechanism is referred to as the first linear motion drive device; the linear motion drive device of the second walking mechanism is referred to as the second linear motion drive device; when the smooth support leg of the first walking mechanism and the smooth support leg of the second walking mechanism are located on the same horizontal plane, the first linear motion drive device and the second linear motion drive device form a centrally symmetrical structure.

[0011] In some embodiments, the linear motion drive device is one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0012] In some embodiments, the large semi-trailer translation mechanism further includes multiple pins; the lower surface of the connecting support and the upper surface of the smooth support are respectively provided with multiple hinge point mounting seats; the first end of the connecting rod is hinged to the connecting support through the pins and the hinge point mounting seats, and the second end of the connecting rod is hinged to the smooth support through the pins and the hinge point mounting seats.

[0013] In some embodiments, the first end of the linear motion drive device is hinged to the connecting support via the pin and the hinge point mounting seat, and the second end of the linear motion drive device is hinged to the rod body via the pin.

[0014] On the other hand, a method for using a large semi-trailer translation mechanism is provided, which employs the aforementioned large semi-trailer translation mechanism and includes the following steps:

[0015] (1) The large semi-trailer translation mechanism is installed on the lower surface of the chassis of the large semi-trailer through the connecting support, and is located at the rear of the frame or the rear axle, so that the length direction of the smooth support leg is perpendicular to the length direction of the large semi-trailer.

[0016] (2) When the large semi-trailer is in or about to switch to normal driving state, adjust the first linear motion drive device and the second linear motion drive device to the minimum stroke so that the distance between the smooth support foot and the connecting support is the shortest.

[0017] (3) When the large semi-trailer is preparing to turn or move the rear of the vehicle laterally, the following steps shall be performed in sequence:

[0018] (a) Simultaneously increase the stroke of the first linear motion drive device and the second linear motion drive device until both of the smooth legs are in contact with the ground;

[0019] (b) Based on the target translation direction, one of the first linear motion drive device and the second linear motion drive device is selected to continue to increase its stroke to the maximum stroke, so that the rear of the large semi-trailer is lifted and moves in the target translation direction;

[0020] (c) Continue to increase the stroke of the unselected one of the first linear motion drive device and the second linear motion drive device to the maximum stroke so that both of the smooth legs are in contact with the ground;

[0021] (d) First reduce the stroke of the linear motion drive device in step (b), then reduce the stroke of the linear motion drive device in step (c). At this time, the rear of the large semi-trailer continues to move in the direction of the target translation until the rear of the large semi-trailer touches the ground and the two smooth outriggers are about to leave the ground.

[0022] (e) Repeat steps (a) to (d) to continuously move the rear of the vehicle in the direction of translation toward the target;

[0023] (f) After the large semi-trailer arrives at the designated location, proceed with step (2).

[0024] On another front, a large-stroke translation mechanism for a semi-trailer is provided. It includes a connecting support, a first traveling mechanism, and a second traveling mechanism connected sequentially. The connecting support is horizontally positioned. The first traveling mechanism includes a first smooth support leg, a first linear motion drive device, and multiple pairs of parallel first connecting rods. The first smooth support leg is parallel to the connecting support. The first ends of the multiple pairs of first connecting rods are hinged to the lower surface of the connecting support, and the second ends of the multiple pairs of first connecting rods are hinged to the upper surface of the first smooth support leg, allowing the first smooth support leg to swing along its length in a first vertical plane. The first linear motion drive device is located in the first vertical plane. The first end of the first linear motion drive device is hinged to the lower surface of the connecting support, and the second end of the first linear motion drive device is hinged to the body of the first connecting rod, adjusting the angle between the first connecting rod and the connecting support, thereby adjusting the distance between the first smooth support leg and the connecting support. The second traveling mechanism includes a second smooth support leg, a second linear motion drive device, and multiple pairs of parallel second connecting rods. The second smooth support leg is parallel to the first smooth support leg. The first ends of the multiple pairs of second connecting rods are hinged to the lower surface of the first smooth support leg, and the second ends of the multiple pairs of second connecting rods are hinged to the upper surface of the second smooth support leg, so that the second smooth support leg can swing along its length in the first vertical plane. The second linear motion drive device is located in the first vertical plane. The first end of the second linear motion drive device is hinged to the lower surface of the first smooth support leg, and the second end of the first linear motion drive device is hinged to the rod body of the second connecting rod, so as to adjust the angle between the second connecting rod and the first smooth support leg, thereby adjusting the distance between the second smooth support leg and the first smooth support leg. The first end of the second linear motion drive device is located below the second end of the first linear motion drive device.

[0025] In some embodiments, the first linear motion drive device or the second linear motion drive device is one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0026] In some embodiments, the large semi-trailer long-stroke translation mechanism further includes multiple pins; the lower surface of the connecting support, the upper and lower surfaces of the first smooth support, and the upper surface of the second smooth support are respectively provided with multiple hinge point mounting seats; the first end of the first connecting rod is hinged to the connecting support through the pins and the hinge point mounting seats, and the second end of the first connecting rod is hinged to the first smooth support through the pins and the hinge point mounting seats; the first end of the second connecting rod is hinged to the first smooth support through the pins and the hinge point mounting seats, and the second end of the second connecting rod is hinged to the second smooth support through the pins and the hinge point mounting seats.

[0027] In some embodiments, the first end of the first linear motion drive device is hinged to the connecting support via the pin and the hinge point mounting seat, and the second end of the first linear motion drive device is hinged to the body of the first connecting rod via the pin; the first end of the second linear motion drive device is hinged to the first smooth support leg via the pin and the hinge point mounting seat, and the second end of the second linear motion drive device is hinged to the body of the second connecting rod via the pin.

[0028] On the other hand, a method for using a large-stroke translation mechanism for a large semi-trailer is provided, which employs the aforementioned large-stroke translation mechanism for a large semi-trailer and includes the following steps:

[0029] (1) The large semi-trailer long-stroke translation mechanism is installed on the lower surface of the chassis of the large semi-trailer through the connecting support, and is located at the rear of the frame or the rear axle, so that the length direction of the second smooth support leg is perpendicular to the length direction of the large semi-trailer.

[0030] (2) When the large semi-trailer is in or about to switch to normal driving state, adjust the first linear motion drive device and the second linear motion drive device to the minimum stroke so that the distance between the second smooth support foot and the connecting support is the shortest.

[0031] (3) When the large semi-trailer is preparing to turn or move the rear of the vehicle laterally, the following steps shall be performed in sequence:

[0032] (a) Increase the stroke of the first linear motion drive device and / or the second linear motion drive device until the second smooth foot contacts the ground and the second smooth foot is located on the side of the connecting support;

[0033] (b) Adjust the first linear motion drive device and the second linear motion drive device to their maximum stroke. At this time, the second smooth support foot is located directly below the connecting support, and the rear of the large semi-trailer is lifted and moved to the side.

[0034] (c) Based on the direction of the side, reduce the stroke of one of the first linear motion drive device and the second linear motion drive device to the minimum stroke, so that the rear of the large semi-trailer lowers and continues to move toward the side;

[0035] (d) Repeat steps (a) to (c) to continuously move the rear of the vehicle toward the side;

[0036] (e) After the large semi-trailer arrives at the designated location, proceed with step (2).

[0037] Beneficial effects:

[0038] 1. This disclosure provides a large semi-trailer translation mechanism, which overcomes the technical defects of existing vehicle steering and moving devices, which have complex structures, high costs, and poor reliability.

[0039] 2. The large semi-trailer translation mechanism provided in this disclosure consists of smooth support legs, linear motion drive devices, and multiple pairs of parallel linkages forming the first and second travel mechanisms. The two sets of linkage mechanisms are driven by two linear motion drive devices. The structure is simple, has a strong load-bearing capacity, and can achieve more stable lifting and translation of large semi-trailers. It has better handling performance, more precise control over the vehicle translation distance, and can achieve bidirectional translation. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly introduced below. However, the drawings described below are merely drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. Furthermore, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc., involved in the embodiments of this disclosure.

[0041] Figure 1 A front view of a large semi-trailer translation mechanism according to some embodiments;

[0042] Figure 2 for Figure 1 Side view of the translation mechanism of a large semi-trailer;

[0043] Figure 3 for Figure 1 A schematic diagram showing the installation location of the large semi-trailer translation mechanism within the vehicle.

[0044] Figure 4 for Figure 1 A diagram showing the state of the large semi-trailer's translation mechanism when the large semi-trailer is in or about to switch to normal driving mode.

[0045] Figure 5 for Figure 1 The large semi-trailer translation mechanism synchronously increases the stroke of the first linear motion drive device and the second linear motion drive device until both smooth outriggers are in contact with the ground.

[0046] Figure 6 for Figure 1 A schematic diagram showing the first linear motion drive of the translation mechanism of a large semi-trailer increasing its stroke to the maximum stroke, at which point the rear of the large semi-trailer is lifted and moved to the right.

[0047] Figure 7 for Figure 1 A diagram showing the state where both smooth outriggers of the translation mechanism of a large semi-trailer are in contact with the ground;

[0048] Figure 8 for Figure 1 A diagram showing the state of the translation mechanism of a large semi-trailer after reducing the stroke of the first linear motion drive device;

[0049] Figure 9 for Figure 1 The large semi-trailer translation mechanism reduces the stroke of the second linear motion drive device, and the rear of the large semi-trailer continues to move to the right until the rear of the large semi-trailer touches the ground and the two smooth outriggers are about to leave the ground.

[0050] Figure 10 A front view of a large semi-trailer long-stroke translation mechanism according to some other embodiments;

[0051] Figure 11 for Figure 10 Side view of the long-stroke translation mechanism of a large semi-trailer;

[0052] Figure 12 for Figure 10 A diagram showing the state of the large-stroke translation mechanism of a large semi-trailer when the large semi-trailer is in or about to switch to normal driving mode.

[0053] Figure 13 for Figure 10 The large stroke translation mechanism of the large semi-trailer increases the stroke of the first linear motion drive device until the second smooth support foot contacts the ground and the second smooth support foot is located on the right side of the connecting support.

[0054] Figure 14 for Figure 10 A schematic diagram showing that after the first and second linear motion drive devices of the large semi-trailer are adjusted to their maximum stroke, the second smooth support foot is located directly below the connecting support, and the rear of the large semi-trailer is lifted and moved to the right.

[0055] Figure 15 for Figure 10 The diagram shows the state of the large semi-trailer's rear end descending and continuing to move to the right after the first linear motion drive device's stroke is reduced to its minimum stroke.

[0056] Figure 16 for Figure 10 The diagram shows the state of the large-stroke translation mechanism of a semi-trailer after adjusting the first and second linear motion drive devices to their minimum stroke. Detailed Implementation

[0057] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0058] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific feature, structure, material, or characteristic may be included in any suitable manner in any one or more embodiments or examples.

[0059] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0060] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. The term "connected" should be interpreted broadly; for example, a "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. The term "coupled" indicates that two or more components have direct physical or electrical contact. The term "coupled" or "communication coupling" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0061] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0062] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0063] As used herein, depending on the context, the term “if” may optionally be interpreted as meaning “when”, “in the event of”, “in response to determination”, or “in response to detection”. Similarly, depending on the context, the phrase “if it is determined that…” or “if [the stated condition or event] is detected” may optionally be interpreted as meaning “in the event of determination that…”, “in response to determination that…”, “when [the stated condition or event] is detected”, or “in response to the detection of [the stated condition or event]”.

[0064] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0065] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0066] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0067] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0068] This document describes exemplary embodiments with reference to cross-sectional views and / or plan views, which are idealized exemplary drawings. In the drawings, the thickness of layers and regions is enlarged for clarity. Therefore, variations in shape relative to the drawings are contemplated due to, for example, manufacturing techniques and / or tolerances. Thus, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing processes. For example, etched regions shown as rectangular would typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device, nor are they intended to limit the scope of the exemplary embodiments.

[0069] Key term definitions:

[0070] Translation mechanism: It is installed on the vehicle chassis and its function is to lift and translate parts of large and extra-long vehicles, thereby enabling the vehicle to turn or move laterally.

[0071] Semi-trailer: refers to a vehicle that has no power of its own, shares the load with the main vehicle, and relies on the main vehicle for traction.

[0072] In some embodiments, a large semi-trailer translation mechanism 3 is provided. For example... Figures 1 to 2 , Figures 4 to 9 As shown, it includes: a connecting support 15, a first traveling mechanism 100 and a second traveling mechanism 200 arranged side by side; the connecting support 15 is horizontally arranged; both the first traveling mechanism 100 and the second traveling mechanism 200 include smooth legs 9, a linear motion drive device 5 and multiple pairs of parallel connecting rods 6; the smooth legs 9 are parallel to the connecting support 15; the first ends of the multiple pairs of connecting rods 6 are hinged to the connecting support 15, and the second ends of the multiple pairs of connecting rods 6 are hinged to the smooth legs 9, so that the smooth legs 9 can swing along the length direction of the smooth legs 9 in the first vertical plane; the linear motion drive device is located in the first vertical plane; the first end of the linear motion drive device 5 is hinged... The second end of the linear motion drive device 5 is hinged to the rod body of the connecting rod 6, attached to the lower surface of the connecting support 15, so as to adjust the angle between the connecting rod 6 and the connecting support 15, thereby adjusting the distance between the smooth support leg 9 and the connecting support 15; the linear motion drive device 5 of the first walking mechanism 100 is referred to as the first linear motion drive device; the linear motion drive device 5 of the second walking mechanism 200 is referred to as the second linear motion drive device; when the smooth support leg 9 of the first walking mechanism 100 and the smooth support leg 9 of the second walking mechanism 200 are located on the same horizontal plane, the first linear motion drive device and the second linear motion drive device form a centrally symmetrical structure.

[0073] On the other hand, a method for using a large semi-trailer translation mechanism 3 is provided, employing methods such as... Figures 1 to 9 The aforementioned large semi-trailer translation mechanism 3 includes the following steps:

[0074] (1) As Figure 3 As shown, the large semi-trailer translation mechanism 3 is installed on the lower surface of the chassis of the large semi-trailer 2 via the connecting support 15, and is located at the rear of the frame or the rear axle, so that the length direction of the smooth support leg 9 is perpendicular to the length direction of the large semi-trailer 2; the large semi-trailer 2 is towed by the tractor 1. The large semi-trailer translation mechanism 3 can be directly installed on the chassis or installed on the chassis via a telescopic device, depending on different vehicle heights and ground clearance requirements; when the large semi-trailer 2 is in normal driving, the telescopic device is retracted; when the large semi-trailer translation mechanism 3 is working, the telescopic device extends downward.

[0075] (2) Figure 4 As shown, when the large semi-trailer 2 is in or about to switch to normal driving mode, the first linear motion drive device and the second linear motion drive device are adjusted to the minimum stroke so that the distance between the smooth support leg 9 and the connecting support 15 is the shortest; at this time, the large semi-trailer translation mechanism 3 is in the folded state, and the connecting rod 6 and the smooth support leg 9 are both in the retracted state.

[0076] (3) When the large semi-trailer 2 is preparing to turn or move the rear of the vehicle laterally, perform the following steps in sequence:

[0077] (a) Simultaneously increase the stroke of the first linear motion drive device and the second linear motion drive device until both smooth legs 9 are in contact with the ground, such as Figure 5 As shown;

[0078] (b) Based on the target translation direction, one of the first linear motion drive devices and the second linear motion drive device is selected to further increase its stroke to the maximum stroke, so that the rear of the large semi-trailer 2 is lifted and moved in the target translation direction, such as... Figure 6 As shown; (for example, refer to) Figure 6 When the stroke of the first linear motion drive device located at the rear of the body of the large semi-trailer 2 is increased to the maximum stroke, the rear of the large semi-trailer 2 is lifted and moved to the right. Similarly, if the stroke of the second linear motion drive device located at the front of the body of the large semi-trailer 2 is increased to the maximum stroke, the rear of the large semi-trailer 2 is lifted and moved to the left.

[0079] (c) Continue to increase the unselected one of the first linear motion drive device and the second linear motion drive device. Figure 7 The diagram shows the travel of the second linear motion drive unit located at the front of the body of the large semi-trailer 2, up to its maximum travel, so that both smooth outriggers 9 are in contact with the ground. Figure 7 As shown;

[0080] (d) such as Figure 8 As shown, first reduce the linear motion drive device in step (b). Figure 8 The diagram shows the stroke of the first linear motion drive unit located at the rear of the body of the large semi-trailer 2; then the stroke of the linear motion drive unit in step (c) is reduced. Figure 9 The diagram shows the stroke of the second linear motion drive unit located in front of the body of the large semi-trailer 2. At this time, the rear of the large semi-trailer 2 continues to move in the target translation direction until the rear of the large semi-trailer 2 contacts the ground, and the two smooth outriggers 9 are about to leave the ground. Figure 9 As shown;

[0081] (e) Repeat steps (a) to (d) to continuously move the rear of the vehicle in the target translation direction (e.g., to the right); similarly, by adjusting the settings of the first linear motion drive device and the second linear motion drive device, the rear of the semi-trailer can be continuously moved to the left.

[0082] (f) After the large semi-trailer 2 arrives at the designated location, step (2) is executed to restore the large semi-trailer 2 to normal driving status.

[0083] The aforementioned large semi-trailer translation mechanism 3 consists of smooth support legs 9, linear motion drive devices 5, and multiple pairs of parallel connecting rods 6, forming a first traveling mechanism 100 and a second traveling mechanism 200 arranged along the front and rear directions of the large semi-trailer 2. The two sets of connecting rod mechanisms are driven by two linear motion drive devices 5. The structure is simple, has a strong load-bearing capacity, and can achieve more stable lifting and translation of the large semi-trailer, better handling performance, more precise control of the vehicle translation distance, and can achieve translation in both left and right directions.

[0084] In some embodiments, the linear motion drive device 5 is one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0085] In some embodiments, such as Figure 1 As shown, the large semi-trailer translation mechanism 3 also includes multiple pins (including long pins 13 and short pins 12); multiple hinge point mounting seats 300 are respectively provided on the lower surface of the connecting support 15 and the upper surface of the smooth support leg 9; the first end of the connecting rod 6 is hinged to the connecting support 15 through the pin and the hinge point mounting seat 300, and the second end of the connecting rod 6 is hinged to the smooth support leg 9 through the pin and the hinge point mounting seat 300.

[0086] In some embodiments, such as Figure 1 As shown, the first end of the linear motion drive device 5 is hinged to the connecting support 15 via a pin and a hinge point mounting seat 300, and the second end of the linear motion drive device 5 is hinged to the rod body of the connecting rod 6 via a pin.

[0087] In other embodiments, a large-stroke translation mechanism for a large semi-trailer is provided. For example... Figures 10 to 16As shown, it includes: a connecting support 16, a first traveling mechanism 400, and a second traveling mechanism 500 connected vertically; wherein, the connecting support 16 is horizontally arranged; the first traveling mechanism 400 includes a first smooth support leg 17, a first linear motion drive device 50, and multiple pairs of parallel first connecting rods 60; the first smooth support leg 17 is parallel to the connecting support 16; the first ends of the multiple pairs of first connecting rods 60 are hinged to the lower surface of the connecting support 16, and the second ends of the multiple pairs of first connecting rods 60 are hinged to the upper surface of the first smooth support leg 17, so that the first smooth support leg 17 can swing along the length direction of the first smooth support leg 17 in the first vertical plane; the first linear motion drive device 50 is located in the first vertical plane; the first end of the first linear motion drive device 50 is hinged to the lower surface of the connecting support 16, and the second end of the first linear motion drive device 50 is hinged to the rod body of the first connecting rod 60, so as to adjust the angle between the first connecting rod 60 and the connecting support 16, thereby adjusting the distance between the first smooth support leg 17 and the connecting support 16. The distance between the second walking mechanism 500 and the first smooth leg 17 is adjusted by the following: the second smooth leg 90 includes a second smooth leg 90, a second linear motion drive device 51, and multiple pairs of parallel second links 61; the second smooth leg 90 is parallel to the first smooth leg 17; the first ends of the multiple pairs of second links 61 are hinged to the lower surface of the first smooth leg 17, and the second ends of the multiple pairs of second links 61 are hinged to the upper surface of the second smooth leg 90, so that the second smooth leg 90 can swing along the length direction of the second smooth leg 90 in the first vertical plane; the second linear motion drive device 51 is located in the first vertical plane; the first end of the second linear motion drive device 51 is hinged to the lower surface of the first smooth leg 17, and the second end of the first linear motion drive device 50 is hinged to the rod body of the second link 61, so as to adjust the angle between the second link 61 and the first smooth leg 17, thereby adjusting the distance between the second smooth leg 90 and the first smooth leg 17; the first end of the second linear motion drive device 51 is located below the second end of the first linear motion drive device 50.

[0088] On the other hand, a method for using a large-stroke translation mechanism for a large semi-trailer is provided, employing methods such as... Figures 10 to 16 The aforementioned large semi-trailer translation mechanism includes the following steps:

[0089] (1) The large semi-trailer translation mechanism is installed on the lower surface of the chassis of the large semi-trailer through the connecting support 16 and is located at the rear of the frame or the rear axle, so that the length direction of the second smooth support leg 90 is perpendicular to the length direction of the large semi-trailer.

[0090] (2) When the large semi-trailer is in or about to switch to normal driving mode, adjust the first linear motion drive device 50 and the second linear motion drive device 51 to their minimum stroke to minimize the distance between the second smooth support leg 90 and the connecting support 16. Figure 12 As shown;

[0091] (3) When a large semi-trailer is preparing to turn or move its rear end laterally, perform the following steps in sequence:

[0092] (a) Increase the stroke of the first linear motion drive and / or the second linear motion drive. Figure 13 (This illustrates increasing the stroke of the first linear motion drive 50) until the second smooth leg contacts the ground and is positioned on the side of the connecting support, as shown. Figure 13 As shown;

[0093] (b) Adjust the first and second linear motion drive devices to their maximum stroke. At this point, the second smooth support leg is directly below the connecting support, and the rear of the large semi-trailer is lifted and moved to the side, as shown. Figure 14 As shown;

[0094] (c) Based on the direction of the side, reduce the stroke of either the first linear motion drive device or the second linear motion drive device to the minimum stroke. Figure 15 This illustrates reducing the stroke of the first linear motion drive 50 to lower the rear of the large semi-trailer and continue to move laterally. Figure 15 (As shown, moving to the right) Figure 15 As shown;

[0095] (d) Repeat steps (a) through (c) to continue moving the rear of the vehicle to the side;

[0096] (e) After the large semi-trailer arrives at the designated location, proceed with step (2), such as... Figure 16 As shown.

[0097] Similarly, by adjusting the stroke and operating sequence of the first and second linear motion drive devices, the rear of the vehicle can be moved to the left.

[0098] The aforementioned large semi-trailer long-stroke translation mechanism comprises smooth outriggers, linear motion drive devices, and multiple pairs of parallel linkages forming a first and second traveling mechanism arranged vertically. Two linear motion drive devices drive two sets of linkage mechanisms, resulting in good handling performance, stable vehicle translation, and precise translation distance. This large semi-trailer long-stroke translation mechanism can significantly increase the stroke of the translation mechanism, improve its translation efficiency, and also achieve bidirectional translation. Furthermore, in the folded state, the large semi-trailer long-stroke translation mechanism has a small ground clearance and occupies minimal space.

[0099] In some embodiments, the first linear motion drive device 50 or the second linear motion drive device 51 is one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0100] In some embodiments, such as Figure 10 , Figures 12 to 16 As shown, the large semi-trailer long-stroke translation mechanism also includes multiple pins (short pin 120 and long pin 130); multiple hinge point mounting seats 600 are respectively provided on the lower surface of the connecting support 16, the upper and lower surfaces of the first smooth support leg 17 and the upper surface of the second smooth support leg 90; the first end of the first connecting rod 60 is hinged to the connecting support 16 through the pin and the hinge point mounting seat 600, and the second end of the first connecting rod 60 is hinged to the first smooth support leg 17 through the pin and the hinge point mounting seat 600; the first end of the second connecting rod 61 is hinged to the first smooth support leg 17 through the pin and the hinge point mounting seat 600, and the second end of the second connecting rod 61 is hinged to the second smooth support leg 90 through the pin and the hinge point mounting seat 600.

[0101] In some embodiments, such as Figure 10 , Figures 12 to 16 As shown, the first end of the first linear motion drive device 50 is hinged to the connecting support 16 via a pin and a hinge point mounting seat 600, and the second end of the first linear motion drive device 50 is hinged to the rod body of the first connecting rod 60 via a pin; the first end of the second linear motion drive device 51 is hinged to the first smooth support leg 17 via a pin and a hinge point mounting seat 600, and the second end of the second linear motion drive device 51 is hinged to the rod body of the second connecting rod 61 via a pin.

[0102] The two types of large semi-trailer translation mechanisms disclosed herein (large semi-trailer translation mechanism 3 and large semi-trailer long-stroke translation mechanism) are installed at the rear of the chassis frame or rear axle of the large semi-trailer 2, realizing the lifting and translation movement of the rear of the large semi-trailer. When the large semi-trailer 2 is traveling on a narrow road section and the turning radius of the chassis running system is too large to pass through the section, the aforementioned two types of large semi-trailer translation mechanisms can lift and translate the rear of the large semi-trailer, thereby assisting the vehicle in turning and allowing the vehicle to pass smoothly through narrow roads, or being used to adjust the position of the rear of the semi-trailer. The two types of large semi-trailer translation mechanisms disclosed herein have a simple structure, good economy, small space occupation, and are more convenient for overall vehicle layout; the lifting and translation process is stable and safe, and has a strong load-bearing capacity, and can be installed on large-tonnage semi-trailers or other large and extra-long vehicles for auxiliary steering and position adjustment.

[0103] When the vehicle is in motion, the first and second traveling mechanisms can be retracted by adjusting the linear motion drive to the minimum stroke, so that the large semi-trailer translation mechanism can be quickly folded up and further reduced in space.

[0104] The two large semi-trailer translation mechanisms disclosed herein, through ingenious structural design, can complete steering or lateral translation of the vehicle's rear end simply by adjusting the stroke of two linear motion drive devices, making them easy to operate and highly reliable.

[0105] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0106] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A method of using a large semi-trailer translation mechanism, characterized in that, The large semi-trailer translation mechanism includes: a connecting support, a first traveling mechanism and a second traveling mechanism arranged side by side; the connecting support is horizontally positioned. Both the first and second walking mechanisms include smooth legs, a linear motion drive device, and multiple pairs of parallel connecting rods. The smooth legs are parallel to the connecting support. The first ends of the multiple pairs of connecting rods are hinged to the connecting support, and the second ends of the multiple pairs of connecting rods are hinged to the smooth legs, so that the smooth legs can swing along their length in a first vertical plane. The linear motion drive device is located in the first vertical plane. The first end of the linear motion drive device is hinged to the lower surface of the connecting support, and the second end of the linear motion drive device is hinged to the rod body of the connecting rod, so as to adjust the angle between the connecting rod and the connecting support, thereby adjusting the distance between the smooth legs and the connecting support. The linear motion drive device of the first walking mechanism is referred to as the first linear motion drive device; the linear motion drive device of the second walking mechanism is referred to as the second linear motion drive device; when the smooth support leg of the first walking mechanism and the smooth support leg of the second walking mechanism are located on the same horizontal plane, the first linear motion drive device and the second linear motion drive device form a centrally symmetrical structure. The method of using the large semi-trailer translation mechanism includes the following steps: (1) The large semi-trailer translation mechanism is installed on the lower surface of the chassis of the large semi-trailer through the connecting support, and is located at the rear of the frame or the rear axle, so that the length direction of the smooth support leg is perpendicular to the length direction of the large semi-trailer. (2) When the large semi-trailer is in or about to switch to normal driving state, adjust the first linear motion drive device and the second linear motion drive device to the minimum stroke so that the distance between the smooth support foot and the connecting support is the shortest. (3) When the large semi-trailer is preparing to turn or move the rear of the vehicle laterally, the following steps shall be performed in sequence: (a) Simultaneously increase the stroke of the first linear motion drive device and the second linear motion drive device until both of the smooth legs are in contact with the ground; (b) Based on the target translation direction, one of the first linear motion drive device and the second linear motion drive device is selected to continue increasing its stroke to the maximum stroke, so that the rear of the large semi-trailer is lifted and moved in the target translation direction; (c) Continue to increase the stroke of the unselected one of the first linear motion drive device and the second linear motion drive device to the maximum stroke so that both of the smooth legs are in contact with the ground; (d) First reduce the stroke of the linear motion drive device in step (b), then reduce the stroke of the linear motion drive device in step (c). At this time, the rear of the large semi-trailer continues to move in the direction of the target translation until the rear of the large semi-trailer touches the ground and the two smooth outriggers are about to leave the ground. (e) Repeat steps (a) to (d) to continuously move the rear of the vehicle in the direction of translation toward the target; (f) After the large semi-trailer arrives at the designated location, proceed with step (2).

2. The method of using the large semi-trailer translation mechanism according to claim 1, characterized in that, The linear motion drive device is one of a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

3. The method of using the large semi-trailer translation mechanism according to claim 1, characterized in that, It also includes multiple pins; The lower surface of the connecting support and the upper surface of the smooth support are respectively provided with multiple hinge point mounting seats; The first end of the connecting rod is hinged to the connecting support via the pin and the hinge point mounting seat, and the second end of the connecting rod is hinged to the smooth support leg via the pin and the hinge point mounting seat.

4. The method of using the large semi-trailer translation mechanism according to claim 3, characterized in that, The first end of the linear motion drive device is hinged to the connecting support via the pin and the hinge point mounting seat, and the second end of the linear motion drive device is hinged to the rod body of the connecting rod via the pin.

5. A large-stroke translation mechanism for a large semi-trailer, characterized in that: It includes a connecting support, a first traveling mechanism, and a second traveling mechanism connected sequentially from top to bottom; wherein the connecting support is horizontally arranged. The first walking mechanism includes a first smooth support leg, a first linear motion drive device, and multiple pairs of parallel first connecting rods. The first smooth support leg is parallel to the connecting support. The first ends of the multiple pairs of first connecting rods are hinged to the lower surface of the connecting support, and the second ends of the multiple pairs of first connecting rods are hinged to the upper surface of the first smooth support leg, so that the first smooth support leg can swing along the length direction of the first smooth support leg in a first vertical plane. The first linear motion drive device is located in the first vertical plane. The first end of the first linear motion drive device is hinged to the lower surface of the connecting support, and the second end of the first linear motion drive device is hinged to the body of the first connecting rod, so as to adjust the angle between the first connecting rod and the connecting support, thereby adjusting the distance between the first smooth support leg and the connecting support. The second walking mechanism includes a second smooth support leg, a second linear motion drive device, and multiple pairs of parallel second connecting rods. The second smooth support leg is parallel to the first smooth support leg. The first ends of the multiple pairs of second connecting rods are hinged to the lower surface of the first smooth support leg, and the second ends of the multiple pairs of second connecting rods are hinged to the upper surface of the second smooth support leg, so that the second smooth support leg can swing along the length direction of the second smooth support leg in the first vertical plane. The second linear motion drive device is located in the first vertical plane. The first end of the second linear motion drive device is hinged to the lower surface of the first smooth support leg, and the second end of the first linear motion drive device is hinged to the rod body of the second connecting rod, so as to adjust the angle between the second connecting rod and the first smooth support leg, thereby adjusting the distance between the second smooth support leg and the first smooth support leg. The first end of the second linear motion drive device is located below the second end of the first linear motion drive device.

6. The large-stroke translation mechanism for large semi-trailers according to claim 5, characterized in that, The first linear motion drive device or the second linear motion drive device is one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

7. The large-stroke translation mechanism for large semi-trailers according to claim 5, characterized in that, It also includes multiple pins; The lower surface of the connecting support, the upper and lower surfaces of the first smooth support, and the upper surface of the second smooth support are each provided with a plurality of hinge point mounting seats. The first end of the first connecting rod is hinged to the connecting support via the pin and the hinge point mounting seat, and the second end of the first connecting rod is hinged to the first smooth support leg via the pin and the hinge point mounting seat. The first end of the second connecting rod is hinged to the first smooth leg via the pin and the hinge point mounting seat, and the second end of the second connecting rod is hinged to the second smooth leg via the pin and the hinge point mounting seat.

8. The large-stroke translation mechanism for large semi-trailers according to claim 7, characterized in that, The first end of the first linear motion drive device is hinged to the connecting support through the pin and the hinge point mounting seat, and the second end of the first linear motion drive device is hinged to the rod body of the first connecting rod through the pin. The first end of the second linear motion drive device is hinged to the first smooth support leg through the pin and the hinge point mounting seat, and the second end of the second linear motion drive device is hinged to the body of the second connecting rod through the pin.

9. A method of using a large-stroke translation mechanism for a large semi-trailer, characterized in that, The large semi-trailer long-stroke translation mechanism according to any one of claims 5 to 8 includes the following steps: (1) The large semi-trailer long stroke translation mechanism is installed on the lower surface of the chassis of the large semi-trailer through the connecting support, and is located at the rear of the frame or the rear axle, so that the length direction of the second smooth support leg is perpendicular to the length direction of the large semi-trailer. (2) When the large semi-trailer is in or about to switch to normal driving state, adjust the first linear motion drive device and the second linear motion drive device to the minimum stroke so that the distance between the second smooth support foot and the connecting support is the shortest. (3) When the large semi-trailer is preparing to turn or move the rear of the vehicle laterally, the following steps shall be performed in sequence: (a) Increase the stroke of the first linear motion drive device and / or the second linear motion drive device until the second smooth foot contacts the ground and the second smooth foot is located on the side of the connecting support; (b) Adjust the first linear motion drive device and the second linear motion drive device to their maximum stroke. At this time, the second smooth support foot is located directly below the connecting support, and the rear of the large semi-trailer is lifted and moved to the side. (c) Based on the direction of the side, reduce the stroke of either the first linear motion drive device or the second linear motion drive device to the minimum stroke, so that the rear of the large semi-trailer lowers and continues to move toward the side; (d) Repeat steps (a) through (c) to continuously move the rear of the vehicle toward the side; (e) After the large semi-trailer arrives at the designated location, proceed with step (2).

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