Special semitrailer chassis and vehicle

Abstract

The special semitrailer chassis comprises a frame assembly, hydraulic jacks are arranged on the front side and the rear side of the frame assembly, and a mechanical jack is further arranged on the front portion of the frame assembly. The hydraulic jacks are arranged on the front side and the rear side of the frame assembly, so that the two sides of the frame assembly are supported, and the mechanical jack is arranged on the front portion of the frame assembly, so that the front portion of the frame assembly is supported. The hydraulic jack and the mechanical jack are arranged on the frame assembly, so that the frame assembly can become a bearing chassis through the cooperation of the hydraulic jack and the mechanical jack during operation, and the technical problem that a semitrailer chassis is generally designed to be only used as a carrying platform and cannot meet the operation use requirement in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the field of special vehicle equipment, and specifically to a special semi-trailer chassis and vehicle. Background Art

[0002] At present, semi-trailers are usually used to transport heavy-duty vehicles, rail vehicles, mining machinery, forestry machinery, construction machinery and other heavy-loaded goods. They have a low center of gravity, good stability and safety, and are capable of transporting extra-high goods and passing overhead obstacles. They are increasingly widely used.

[0003] In the related art, general-purpose semi-trailers are mainly used to transport goods, and the chassis of the semi-trailer is generally designed to be used only as a carrying platform, which cannot meet the operational use requirements.

[0004] Therefore, it is necessary to design a new special semi-trailer chassis to overcome the problems mentioned above. Summary of the invention

[0005] The present application provides a special semi-trailer chassis and vehicle, which can solve the technical problem in the related art that the semi-trailer chassis is generally designed to be used only as a carrying platform and cannot meet the operational use requirements.

[0006] In a first aspect, an embodiment of the present application provides a special semi-trailer chassis, which includes: a frame assembly, wherein hydraulic jacks are disposed on both the front and rear sides of the frame assembly, and a mechanical jack is also disposed on the front of the frame assembly.

[0007] Among them, when the special semi-trailer chassis is being carried, the hydraulic jack and the mechanical jack are retracted and fixed to the frame assembly; when the special semi-trailer chassis needs to provide a load-bearing chassis for operation, the hydraulic jack and the mechanical jack are extended and abut against the ground; the hydraulic jacks are arranged on the front and rear sides of the frame assembly so that the two sides of the frame assembly are effectively supported; the mechanical jack is arranged on the front part of the frame assembly so that the front part of the frame assembly is effectively supported; the hydraulic jack cooperates with the mechanical jack to ensure the overall stability of the special semi-trailer chassis, so that the frame assembly can become a load-bearing chassis when in operation, so that the special semi-trailer chassis can be used as a carrying platform and can also provide a load-bearing chassis for operation.

[0008] In combination with the first aspect, in one embodiment, the frame assembly is provided with four hydraulic jacks, two of which are provided on both the front and rear sides of the frame assembly, and each pair of the hydraulic jacks is spaced apart from the mechanical jacks. Wherein, two of the hydraulic jacks are provided on both the front and rear sides of the frame assembly, so that the four corners of the frame assembly can be balanced under the support of the hydraulic jacks, and each pair of the hydraulic jacks is spaced apart from the mechanical jacks, so that the frame assembly is supported in the front, middle and rear sections respectively, thereby ensuring the overall stability of the special semi-trailer chassis as a load-bearing chassis.

[0009] In combination with the first aspect, in one embodiment, the frame assembly includes a main frame and a sub-frame installed on the top surface of the main frame, the sub-frame is bolted to the main frame, and the main frame is fixedly connected to the hydraulic jack and the mechanical jack. The sub-frame is bolted to the main frame so that the sub-frame and the main frame form a whole, and the sub-frame cooperates with the main frame to increase the height of the frame assembly and the rigidity of the special semi-trailer chassis, so that the special semi-trailer chassis can transport heavy equipment or provide a load-bearing chassis when heavy equipment is operating, thereby increasing the stability of the special semi-trailer chassis.

[0010] In combination with the first aspect, in one embodiment, the subframe includes at least two beams and a plurality of crossbeams arranged between the beams, the plurality of crossbeams connect the beams, and the crossbeams are installed with a fixer. The crossbeam adopts a box-type cross section, and the upper plate and the lower plate of the crossbeam penetrate the web of the beam, thereby ensuring the rigidity of the special semi-trailer chassis while reducing the weight of the subframe and improving the carrying capacity of the special semi-trailer chassis. The fixer is used to lock the upper part installed on the frame assembly during transportation, so that the upper part is not easy to detach during transportation, and the fixer needs to be unlocked when the upper part is operated.

[0011] In combination with the first aspect, in one embodiment, a top-mounted rear trunnion interface is installed at the rear end of the main frame, wherein the top-mounted rear trunnion interface is used to install a top-mounted rear trunnion, so that the top-mounted vehicle installed on the frame assembly can perform pitch motion around the center of the top-mounted rear trunnion.

[0012] In combination with the first aspect, in one embodiment, an electrical box and a tool box are respectively installed on both sides of the main frame. The electrical box and the tool box are respectively installed on both sides of the main frame, the electrical box is used to place electrical units, and the tool box is used to place maintenance tools. The arrangement of the electrical box and the tool box facilitates operators to operate electrical equipment and store and release maintenance tools on the ground.

[0013] In combination with the first aspect, in one embodiment, the frame assembly further includes a support plate, the support plate is mounted on the top surface of the main frame, the height of the support plate is equal to the height of the sub-frame, and the support plate and the sub-frame are spaced apart from each other. The height of the support plate and the sub-frame can be set equal to each other to ensure that the bottom support fulcrum of the upper assembly remains balanced, so that a large device mounted on the frame assembly can be placed stably, and the support plate and the sub-frame are spaced apart from each other to effectively reduce the weight of the frame assembly and improve the carrying capacity of the special semi-trailer chassis.

[0014] In combination with the first aspect, in one embodiment, a hydraulic oil tank is installed on the top surface of the support plate, and the hydraulic oil tank is connected to the hydraulic jack. The hydraulic oil tank is installed on the top surface of the support plate, and the hydraulic oil tank is connected to the hydraulic jack, and when the special semi-trailer chassis is used as a load-bearing chassis, the hydraulic oil is provided to the hydraulic jack to ensure the normal operation of the hydraulic jack.

[0015] In combination with the first aspect, in one embodiment, the bottom of the main frame is connected to a rear axle, the rear axle is connected to the main frame and the sub-frame through a rear suspension, the top of the rear suspension is provided with an upper-mounted oil cylinder fulcrum interface, and the upper-mounted oil cylinder fulcrum interface is installed on the main frame. Wherein, the rear axle can be set as a three-axis axle, the rear suspension connects the rear axle, the main frame and the sub-frame, the top of the rear suspension is provided with an upper-mounted oil cylinder fulcrum interface, the upper-mounted oil cylinder fulcrum interface is installed on the main frame, the upper-mounted oil cylinder fulcrum interface is used to install the lower fulcrum of the upper-mounted oil cylinder, and the telescopic movement of the oil cylinder provides pitching motion power for the upper mounted on the frame assembly.

[0016] In a second aspect, an embodiment of the present application provides a vehicle, comprising: a cab and a special semi-trailer chassis, wherein the special semi-trailer chassis comprises a frame assembly, wherein the frame assembly is connected to the cab, hydraulic jacks are arranged on the front and rear sides of the frame assembly, and a mechanical jack is also arranged on the front of the frame assembly.

[0017] Among them, the cab can provide driving force for the frame assembly, the hydraulic jacks are arranged on both the front and rear sides of the frame assembly, so that the two sides of the frame assembly are effectively supported, and the mechanical jack is arranged on the front of the frame assembly, so that the front of the frame assembly is effectively supported, which is convenient for the assembly of the cab and the frame assembly. The cooperation of the hydraulic jack and the mechanical jack can ensure the overall stability of the special semi-trailer chassis, so that the frame assembly can become a load-bearing chassis when used in operation, so that the special semi-trailer chassis can be used as a carrying platform and provide a load-bearing chassis when used in operation. In other embodiments, the cab can be set as the trailer head, and the trailer head can provide driving force for the frame assembly.

[0018] The beneficial effects brought by the technical solution provided by the embodiments of the present application include:

[0019] By arranging hydraulic jacks on both the front and rear sides of the frame assembly, the two sides of the frame assembly are supported, and by arranging a mechanical jack on the front of the frame assembly, the front of the frame assembly is supported, so that the frame assembly can become a load-bearing chassis through the cooperation of the hydraulic jack and the mechanical jack when in operation, thereby solving the technical problem in the related art that the chassis of the semi-trailer is generally designed to be used only as a carrying platform and cannot meet the requirements of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A side view of a special semi-trailer chassis provided in an embodiment of the present application;

[0022] Figure 2 A top view of a special semi-trailer chassis provided in an embodiment of the present application;

[0023] Figure 3 A side view of a vehicle provided in an embodiment of the present application.

[0024] In the figure: 1. frame assembly; 11. main frame; 111. upper rear ear shaft interface; 112. upper cylinder fulcrum interface; 12. subframe; 121. beam; 122. crossbeam; 13. support plate; 2. hydraulic jack; 3. mechanical jack; 4. fastener; 5. electrical box; 6. tool box; 7. hydraulic oil tank; 8. rear axle; 9. rear suspension. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0026] The embodiments of the present application provide a special semi-trailer chassis and vehicle, which can solve the technical problem that the general design of the semi-trailer chassis is only used as a carrying platform and cannot meet the operational use requirements.

[0027] See also Figure 1 As shown, the present application provides a special semi-trailer chassis, which includes: a frame assembly 1, a hydraulic jack 2 is arranged on both the front and rear sides of the frame assembly 1, and a mechanical jack 3 is also arranged on the front of the frame assembly 1.

[0028] In this embodiment, when the special semi-trailer chassis is being carried, the hydraulic jack 2 and the mechanical jack 3 are retracted and fixed to the frame assembly 1; when the special semi-trailer chassis needs to provide a load-bearing chassis for operation, the hydraulic jack 2 and the mechanical jack 3 are extended and abut the ground; the hydraulic jack 2 is arranged on both the front and rear sides of the frame assembly 1 so that both sides of the frame assembly 1 are effectively supported; the mechanical jack 3 is arranged on the front part of the frame assembly 1 so that the front part of the frame assembly 1 is effectively supported; the hydraulic jack 2 cooperates with the mechanical jack 3 to ensure the overall stability of the special semi-trailer chassis, so that the frame assembly 1 can become a load-bearing chassis when in operation, so that the special semi-trailer chassis can be used as a carrying platform and can also provide a load-bearing chassis for operation.

[0029] In this embodiment, the hydraulic jacks 2 are arranged on both the front and rear sides of the frame assembly 1 to support the two sides of the frame assembly 1, and the mechanical jack 3 is arranged on the front part of the frame assembly 1 to support the front part of the frame assembly 1. When the frame assembly 1 is used in operation, the cooperation of the hydraulic jacks 2 and the mechanical jacks 3 can be used as a load-bearing chassis, which solves the technical problem in the related art that the chassis of the semi-trailer is generally designed to be used only as a carrying platform and cannot meet the requirements of operation.

[0030] Further, see Figure 1 As shown, in some embodiments, the frame assembly 1 is provided with four hydraulic jacks 2, two hydraulic jacks 2 are provided on the front and rear sides of the frame assembly 1, and each pair of the hydraulic jacks 2 is spaced apart from the mechanical jack 3.

[0031] In this embodiment, two hydraulic jacks 2 are arranged on the front and rear sides of the frame assembly 1, so that the four corners of the frame assembly 1 can be balanced under the support of the hydraulic jacks 2, and each pair of the hydraulic jacks 2 and the mechanical jacks 3 are arranged at intervals, so that the frame assembly 1 is supported in the front, middle and rear sections respectively, thereby ensuring the overall stability of the special semi-trailer chassis as a load-bearing chassis.

[0032] Further, see Figure 1 As shown, in some embodiments, the frame assembly 1 includes a main frame 11 and a sub-frame 12 installed on the top surface of the main frame 11, the sub-frame 12 is bolted to the main frame 11, and the main frame 11 is fixedly connected to the hydraulic jack 2 and the mechanical jack 3.

[0033] In this embodiment, the sub-frame 12 is bolted to the main frame 11, so that the sub-frame 12 and the main frame 11 form a whole. The cooperation between the sub-frame 12 and the main frame 11 can increase the height of the frame assembly 1 and the rigidity of the special semi-trailer chassis, so that the special semi-trailer chassis can transport heavy equipment or provide a load-bearing chassis when heavy equipment is operating, thereby increasing the stability of the special semi-trailer chassis.

[0034] Further, see Figure 2 As shown, in some embodiments, the subframe 12 includes at least two main beams 121 and a plurality of cross beams 122 disposed between the main beams 121 , the plurality of cross beams 122 connect the main beams 121 , and the cross beams 122 are installed with fixers 4 .

[0035] In this embodiment, the cross beam 122 adopts a box-type cross section, and the upper plate and the lower plate of the cross beam 122 pass through the web of the beam 121, thereby ensuring the rigidity of the special semi-trailer chassis while reducing the weight of the sub-frame 12, thereby improving the carrying capacity of the special semi-trailer chassis. The fastener 4 is used to lock the upper installation installed on the frame assembly 1 during transportation, so that the upper installation is not easy to detach during transportation. The fastener 4 needs to be released when the upper installation is operated.

[0036] Further, see Figure 1 As shown, in some embodiments, a top-mounted rear ear axis interface 111 is installed at the rear end of the main frame 11. In this embodiment, the top-mounted rear ear axis interface 111 is used to install a top-mounted rear ear axis, so that the top mounted on the frame assembly 1 can perform pitch motion around the center of the top-mounted rear ear axis.

[0037] Further, see Figure 2 As shown, in some embodiments, an electrical box 5 and a tool box 6 are respectively installed on both sides of the main frame 11.

[0038] In this embodiment, the electrical box 5 and the tool box 6 are respectively installed on both sides of the main frame 11, the electrical box 5 is used to place electrical units, and the tool box 6 is used to place maintenance tools. The arrangement of the electrical box 5 and the tool box 6 is convenient for operators to operate electrical equipment and store and unfold maintenance tools on the ground.

[0039] Further, see Figure 1 and Figure 2 As shown, in some embodiments, the frame assembly 1 further includes a support plate 13, which is mounted on the top surface of the main frame 11, the height of the support plate 13 is equal to the height of the sub-frame 12, and the support plate 13 and the sub-frame 12 are spaced apart from each other in front and rear.

[0040] In this embodiment, the height of the support plate 13 can be set to be equal to the height of the sub-frame 12 to ensure that the bottom support fulcrum of the upper structure remains balanced, so that the large device installed on the frame assembly 1 can be placed stably. The support plate 13 and the sub-frame 12 are arranged at a front-to-back interval, which can effectively reduce the weight of the frame assembly 1 and improve the carrying capacity of the special semi-trailer chassis.

[0041] Further, see Figure 1 and Figure 2 As shown, in some embodiments, a hydraulic oil tank 7 is installed on the top surface of the support plate 13 , and the hydraulic oil tank 7 is connected to the hydraulic jack 2 .

[0042] In this embodiment, the hydraulic oil tank 7 is installed on the top surface of the support plate 13. The hydraulic oil tank 7 is connected to the hydraulic jack 2 and provides hydraulic oil to the hydraulic jack 2 when the special semi-trailer chassis serves as a load-bearing chassis to ensure the normal operation of the hydraulic jack 2.

[0043] Further, see Figure 1 As shown, in some embodiments, the bottom of the main frame 11 is connected to a rear axle 8, and the rear axle 8 is connected to the main frame 11 and the sub-frame 12 through a rear suspension 9. The top of the rear suspension 9 is provided with an upper cylinder fulcrum interface 112, and the upper cylinder fulcrum interface 112 is installed on the main frame 11.

[0044] In this embodiment, the rear axle 8 can be set as a three-axis axle, the rear suspension 9 connects the rear axle 8, the main frame 11 and the sub-frame 12, and the top of the rear suspension 9 is provided with an upper cylinder fulcrum interface 112, and the upper cylinder fulcrum interface 112 is installed on the main frame 11. The upper cylinder fulcrum interface 112 is used to install the lower fulcrum of the upper cylinder, and the telescopic movement of the cylinder provides pitching motion power for the upper body installed on the frame assembly 1.

[0045] See also Figure 3 As shown, the present application provides a vehicle, which includes: a cab and a special semi-trailer chassis, wherein the special semi-trailer chassis includes a frame assembly 1, wherein the frame assembly 1 is connected to the cab, and hydraulic jacks 2 are arranged on the front and rear sides of the frame assembly 1, and a mechanical jack 3 is also arranged on the front of the frame assembly 1.

[0046] In this embodiment, the cab can provide driving force for the frame assembly 1. The hydraulic jacks 2 are arranged on both the front and rear sides of the frame assembly 1, so that the two sides of the frame assembly 1 are effectively supported. The mechanical jack 3 is arranged on the front of the frame assembly 1, so that the front of the frame assembly 1 is effectively supported, which is convenient for the assembly of the cab and the frame assembly 1. The cooperation between the hydraulic jack 2 and the mechanical jack 3 can ensure the overall stability of the chassis of the special semi-trailer, so that the frame assembly 1 can become a load-bearing chassis when used in operation, so that the chassis of the special semi-trailer can be used as a carrying platform and a load-bearing chassis when used in operation. In other embodiments, the cab can be set as the trailer head, and the trailer head can provide driving force for the frame assembly 1.

[0047] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0048] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0049] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A special semi-trailer chassis, characterized in that: It includes: A vehicle frame assembly (1), wherein hydraulic jacks (2) are arranged on both the front and rear sides of the vehicle frame assembly (1), and a mechanical jack (3) is also arranged on the front of the vehicle frame assembly (1).

2. The special semi-trailer chassis according to claim 1, characterized in that: The frame assembly (1) is provided with four hydraulic jacks (2), two hydraulic jacks (2) are provided on both the front and rear sides of the frame assembly (1), and each pair of the hydraulic jacks (2) is spaced apart from the mechanical jack (3).

3. The special semi-trailer chassis according to claim 1, characterized in that: The frame assembly (1) comprises a main frame (11) and a sub-frame (12) mounted on the top surface of the main frame (11); the sub-frame (12) is bolted to the main frame (11); and the main frame (11) is fixedly connected to the hydraulic jack (2) and the mechanical jack (3).

4. The special semi-trailer chassis according to claim 3, characterized in that: The sub-frame (12) comprises at least two main beams (121) and a plurality of cross beams (122) arranged between the main beams (121); the plurality of cross beams (122) are connected to the main beams (121); and the cross beams (122) are provided with fixers (4).

5. The special semi-trailer chassis according to claim 3, characterized in that: The rear end of the main frame (11) is provided with an upper mounting rear ear shaft interface (111).

6. The special semi-trailer chassis according to claim 3, characterized in that: An electrical box (5) and a tool box (6) are respectively installed on both sides of the main vehicle frame (11).

7. The special semi-trailer chassis according to claim 3, characterized in that: The frame assembly (1) further comprises a support plate (13), wherein the support plate (13) is mounted on the top surface of the main frame (11), the height of the support plate (13) is equal to the height of the sub-frame (12), and the support plate (13) and the sub-frame (12) are spaced apart from each other in front and rear.

8. The special semi-trailer chassis according to claim 7, characterized in that: A hydraulic oil tank (7) is installed on the top surface of the support plate (13), and the hydraulic oil tank (7) is connected to the hydraulic jack (2).

9. The special semi-trailer chassis according to claim 3, characterized in that: The bottom of the main frame (11) is connected to a rear axle (8), and the rear axle (8) is connected to the main frame (11) and the sub-frame (12) via a rear suspension (9). The top of the rear suspension (9) is provided with an upper cylinder fulcrum interface (112), and the upper cylinder fulcrum interface (112) is installed on the main frame (11).

10. A vehicle, characterized in that: The vehicle comprises: Cab; A special semi-trailer chassis, the special semi-trailer chassis comprising a frame assembly (1), the frame assembly (1) being connected to the cab, hydraulic jacks (2) being arranged on the front and rear sides of the frame assembly (1), and a mechanical jack (3) being arranged on the front of the frame assembly (1).

Images