CNG tractor

Abstract

A compressed natural gas (CNG) tractor belongs to the field of commercial automobiles and comprises a frame, and a cab is arranged at the front end of the frame. The rear gas cylinder assembly is installed on the frame and located behind the cab, and the axial direction of the rear gas cylinder assembly is perpendicular to the frame. The side gas cylinder assembly is installed on one side of the frame, the side gas cylinder assembly is close to a gas port of the rear gas cylinder assembly and located below the rear gas cylinder assembly, and the axial direction of the side gas cylinder assembly is perpendicular to the rear gas cylinder assembly; the control assembly is installed on one side of the frame, located between the side gas cylinder assembly and the rear gas cylinder assembly and used for being connected with a gas cylinder pipeline, the rear gas cylinder assembly and the side gas cylinder assembly are arranged up and down, and the side gas cylinder assembly is arranged on one side of the frame and matched with the position of the control assembly. The arrangement mode that a pipeline of the side gas cylinder assembly crosses the frame is omitted, so that the pipelines of the rear gas cylinder assembly and the side gas cylinder assembly are connected in series and integrally arranged more compactly, the transverse passing angle of the vehicle is larger, and the passing ability is better.

Description

Technical Field

[0001] The invention relates to the technical field of commercial vehicles, in particular to a CNG tractor. Background Art

[0002] CNG refers to natural gas that has been compressed to a pressure greater than or equal to 10MPa and less than 25MPa and stored in a container in a gaseous state. The main component of CNG is methane (CH4), which is the same as the component of pipeline natural gas. It has the advantages of low cost, high efficiency, no pollution, safe and convenient use, etc. It is an ideal alternative energy source for vehicles.

[0003] In order to improve the endurance of the whole vehicle, a CNG dump truck chassis (such as publication number CN220947554U) has now appeared. The rear part of the first axle side of the frame is provided with an air intake module, a battery box, a gas cylinder module and a side CNG assembly one in sequence from front to back, and the rear part of the other side of the first axle of the frame is provided with a post-processing module and a side CNG assembly two in sequence from front to back. The rear part of the frame at the rear of the cab installation position is provided with a rear CNG assembly, and the rear CNG assembly is provided with a row of rear gas cylinders, and the rear gas cylinders are placed horizontally.

[0004] The current chassis contains rear-mounted and side-mounted gas cylinders, and the side-mounted gas cylinders are arranged on both sides of the frame. The pipelines of the rear-mounted gas cylinder and the side-mounted gas cylinder need to be connected in series on one side of the frame, and the pipelines of the side-mounted gas cylinder need to be arranged across the frame. The rear-mounted gas cylinder and the side-mounted gas cylinder are arranged front to back, which makes the pipeline series connection complicated and the maintenance difficult. The vehicle's lateral passing angle is small and the passability is poor. In addition, the saddle on the chassis and the rear-mounted gas cylinder are fixed in position. In order to avoid interference between the trailer and the gas cylinder, the rear-mounted gas cylinder cannot be expanded and cannot be matched with trailers of different models. Summary of the invention

[0005] In order to solve the technical problems in the above-mentioned background technology that the existing rear-mounted and side-mounted gas cylinder chassis have complex pipeline series connection, great difficulty in maintenance, small vehicle lateral passing angle, and poor versatility, the present invention provides a CNG tractor.

[0006] The technical solution of the present invention is as follows: The present invention provides a CNG tractor, comprising a frame, a cab being provided at the front end of the frame, and further comprising: The rear gas cylinder assembly is installed on the vehicle frame and is located behind the cab, and the axial direction of the rear gas cylinder assembly is perpendicular to the vehicle frame; The side-mounted gas cylinder assembly is installed on one side of the frame, the side-mounted gas cylinder assembly is close to the gas inlet of the rear-mounted gas cylinder assembly and is located below the rear-mounted gas cylinder assembly, and the axial direction of the side-mounted gas cylinder assembly is perpendicular to the rear-mounted gas cylinder assembly; The control component is installed on one side of the frame and is located between the side gas cylinder assembly and the rear gas cylinder assembly. It is used to connect with the gas cylinder pipeline. The rear gas cylinder assembly and the side gas cylinder assembly are arranged up and down, and the side gas cylinder assembly is arranged on one side of the frame. In conjunction with the position setting of the control component, the setting method of the side gas cylinder assembly pipeline crossing the frame is cancelled, which can make the pipeline series connection structure of the rear gas cylinder assembly and the side gas cylinder assembly and the overall arrangement more compact, the vehicle lateral passing angle is larger, and the passability is better.

[0007] Preferably, the side-mounted gas cylinder assembly includes an L-shaped hanger, on which is opened a plurality of bolt holes spaced apart vertically, so that the overall height of the side-mounted gas cylinder assembly can be adjusted as required, thereby ensuring the vehicle's passability while expanding the capacity; the hanger is provided with a plurality of side-mounted gas cylinders arranged in parallel vertically, and a shock-absorbing pad is provided between the hanger and the side-mounted gas cylinders to provide shock-absorbing protection; the hanger is connected to the vehicle frame by bolts, and the hanger is connected to a protective cover by studs.

[0008] Preferably, the protective cover covers the upper part, the lower part and the side away from the frame of the side-mounted gas cylinder as a whole to prevent the gas cylinder from being bumped and improve safety.

[0009] Preferably, the rear gas cylinder assembly is fixedly connected to the frame via a first base, the first base is placed on the longitudinal beam of the frame and fixedly connected to the longitudinal beam via a connecting plate, a plurality of mounting holes are provided on the first base along its length and width directions, and a plurality of mounting holes are evenly provided on the connecting plate. The provision of the first base can not only adjust the position of the rear gas cylinder assembly on the frame as needed, but also increase the overall height of the rear gas cylinder assembly, thereby facilitating the improvement of the installation position of the side gas cylinder assembly, thereby facilitating the expansion of the side gas cylinder assembly and the improvement of the vehicle's passability.

[0010] Preferably, two first bases are provided, the two first bases are arranged opposite to each other, the first base is a channel steel structure, and the first base is parallel to the longitudinal beam, so as to facilitate adjustment of the relative position relationship between the first base and the longitudinal beam and improve the height of the rear gas cylinder assembly.

[0011] Preferably, the control component includes a C-shaped bracket, the C-shaped bracket includes a connecting rod arranged obliquely upward, a fixing plate is fixedly provided at each end of the connecting rod, one fixing plate is fixedly connected to the frame by bolts, and a control panel is installed on the other fixing plate, the control panel is connected to the gas cylinder pipeline, and the control component is located between the rear gas cylinder assembly and the side gas cylinder assembly, which improves the compactness of the overall layout, facilitates the connection and layout of the pipeline, simplifies the direction of the pipeline, and the setting of the C-shaped bracket reserves space for the overall improvement of the side gas cylinder assembly, optimizes the space layout while expanding the capacity, so that the side gas cylinder assembly can be expanded and its overall height can be adjusted according to demand, thereby ensuring the endurance and passability of the vehicle.

[0012] Preferably, a saddle assembly is installed at the rear end of the frame, and the saddle assembly includes a second base arranged on the longitudinal beam, and a mounting plate is detachably mounted on the second base, and a saddle is detachably mounted on the mounting plate. The position of the saddle can be adjusted as needed to accommodate trailers of different specifications.

[0013] Preferably, two second bases are provided, the second bases are U-shaped steel structures, the second bases are buckled on the longitudinal beam from the side, a plurality of first bolt holes are provided on the side of the second base along its length direction, and the second base is fixedly connected to the frame by bolts.

[0014] Preferably, the upper surface of the second base is provided with a plurality of second bolt holes along its length and width directions, the mounting plate is provided with a plurality of third bolt holes, the two second bases are fixedly connected together by the mounting plate, and the saddle is mounted on the mounting plate by bolts. The arrangement of the second bolt holes and the third bolt holes can adjust the relative position between the mounting plate and the second base and the relative position between the saddle and the mounting plate as required. At the same time, the relative position of the rear gas cylinder assembly with respect to the frame can be adjusted through the first base, so that the capacity of the rear gas cylinder assembly can be expanded as required, and it can also match trailers of different specifications to avoid interference between the trailer and the gas cylinder, thereby increasing the front turning radius and improving the compatibility of the tractor.

[0015] Preferably, a weight-reducing hole is provided in the middle of the mounting plate, and a plurality of blocks are provided on the peripheral side of the mounting plate, which are fixedly connected to the second base by bolts to further limit the position of the mounting plate, ensure the firmness of the installation, and play a buffering role at the same time.

[0016] It can be seen from the above technical solutions that the advantages of the present invention are: 1. The rear gas cylinder assembly and the side gas cylinder assembly are arranged up and down, and the side gas cylinder assembly is arranged on one side of the frame, and the position setting of the control component is coordinated, and the setting method of the side gas cylinder assembly pipeline crossing the frame is cancelled, which can make the pipeline series connection structure of the rear gas cylinder assembly and the side gas cylinder assembly and the overall arrangement more compact, the vehicle lateral passing angle is larger, and the passability is better.

[0017] 2. The adjustable positions of the rear gas cylinder assembly and the side gas cylinder assembly, the position setting of the control component and the adjustable position setting of the saddle assembly enable the CNG tractor to meet the requirements of high passability and front turning radius as well as the requirements of long cruising range. While expanding the capacity, it optimizes the space layout and improves the vehicle's passability and trailer compatibility.

[0018] 3. The first base is provided with a plurality of mounting holes along its length and width directions, and the connecting plate is evenly provided with a plurality of mounting holes. The setting of the first base can not only adjust the position of the rear gas cylinder assembly on the vehicle frame as needed, but also increase the overall height of the rear gas cylinder assembly, thereby facilitating the improvement of the installation position of the side gas cylinder assembly, thereby facilitating the expansion of the side gas cylinder assembly and improving the vehicle's passability.

[0019] 4. The control component is located between the rear gas cylinder assembly and the side gas cylinder assembly, which improves the compactness of the overall layout, facilitates the connection and layout of the pipelines, simplifies the pipeline direction, and the setting of the C-shaped bracket reserves space for the overall improvement of the side gas cylinder assembly. While expanding the capacity, the space layout is optimized, so that the side gas cylinder assembly can be expanded and its overall height can be adjusted according to demand, ensuring the endurance and vehicle passability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 A schematic diagram of a perspective structure of a tractor according to one or more embodiments of the present invention from a top view; Figure 2 It is a front view schematic diagram of the structure of a tractor according to one or more embodiments of the present invention; Figure 3 It is a schematic structural diagram of the positional relationship between the control component and the side-mounted gas cylinder assembly and the rear-mounted gas cylinder assembly according to one or more embodiments of the present invention; Figure 4 It is a schematic structural diagram of a side-mounted gas cylinder assembly according to one or more embodiments of the present invention; Figure 5 A schematic diagram of the structure of a control component according to one or more embodiments of the present invention; Figure 6 A schematic diagram of the connection structure between the rear gas cylinder assembly and the vehicle frame according to one or more embodiments of the present invention; Figure 7 A schematic diagram of the structure of a connection plate according to one or more embodiments of the present invention; Figure 8 It is a schematic structural diagram of a saddle assembly according to one or more embodiments of the present invention; Fig. 9 A schematic diagram of the structure of a mounting plate according to one or more embodiments of the present invention; The components represented by the reference numerals in the figure are: 1. Frame; 2. Cab; 3. Rear gas cylinder assembly; 4. Side gas cylinder; 5. Saddle assembly; 6. Hanger; 7. Protective cover; 8. Shock pad; 9. First base; 10. Connecting plate; 11. Mounting hole; 12. C-type bracket; 13. Control panel; 14. Second base; 15. Mounting plate; 16. Saddle; 17. First bolt hole; 18. Second bolt hole; 19. Third bolt hole; 20. Stopper. DETAILED DESCRIPTION

[0022] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0023] In a typical embodiment of the present invention, Figure 1-Figure 9 As shown, a CNG tractor is proposed, comprising: a frame 1, a cab 2, a rear gas cylinder assembly 3, a side gas cylinder assembly and a saddle assembly 5, wherein the cab 2 is mounted at the front end of the frame 1, the rear gas cylinder assembly 3 is mounted on the frame 1 and is located behind the cab 2, the axial direction of the rear gas cylinder assembly 3 is perpendicular to the frame 1, the side gas cylinder assembly is mounted on one side of the frame 1 and is close to the gas port of the rear gas cylinder assembly 3, the side gas cylinder assembly is located below the rear gas cylinder assembly 3, and the axial direction of the side gas cylinder assembly is perpendicular to the rear gas cylinder assembly 3, the control component is fixedly mounted on the side of the frame 1 where the side gas cylinder assembly is mounted, and the control component is located between the rear gas cylinder assembly 3 and the side gas cylinder assembly, so as to be connected to the pipelines of the rear gas cylinder assembly 3 and the side gas cylinder assembly.

[0024] The rear gas cylinder assembly 3 and the side gas cylinder assembly are arranged up and down, and the side gas cylinder assembly is set on one side of the frame 1, and the position setting of the control component is coordinated, so the setting method of the side gas cylinder assembly pipeline crossing the frame 1 is cancelled, which can make the pipeline series connection structure of the rear gas cylinder assembly 3 and the side gas cylinder assembly and the overall arrangement more compact, the vehicle lateral passing angle is larger, and the passability is better.

[0025] like Figure 4As shown, the side-mounted gas cylinder assembly includes four side-mounted gas cylinders 4, a hanger 6, a protective cover 7 and a shock-absorbing pad 8. The hanger 6 is an L-shaped structure. The four side-mounted gas cylinders 4 are arranged in groups of two on the hanger 6 in parallel up and down. The number of side-mounted gas cylinders 4 is increased to ensure the gas storage capacity of the side-mounted gas cylinder assembly. A shock-absorbing pad 8 is provided between the hanger 6 and the side-mounted gas cylinder 4 to play a role in shock absorption protection. The hanger 6 is connected to the frame 1 by bolts, and the hanger 6 is connected to the protective cover 7 by studs. The protective cover 7 covers the upper and lower parts of the side-mounted gas cylinders 4 as a whole and a side away from the frame 1 to protect the side-mounted gas cylinders 4.

[0026] A plurality of bolt holes are provided on the hanger 6 for installing bolts. The plurality of bolt holes are spaced apart up and down, and the overall height of the side-mounted gas cylinder assembly can be adjusted according to demand to lift the side-mounted gas cylinder assembly so that its height from the ground is above 300 mm, thereby ensuring the vehicle's passability while expanding the capacity.

[0027] like Figure 6 , Figure 7 As shown, the rear gas cylinder assembly 3 is fixedly connected to the frame 1 through a first base 9. Two first bases 9 are provided, and the two first bases 9 are arranged opposite to each other. The first base 9 is a channel steel structure. The first base 9 is placed above the longitudinal beam of the frame 1, and the first base 9 is parallel to the longitudinal beam of the frame 1. A plurality of mounting holes 11 are opened on the first base 9 along its length and width directions. The first base 9 is fixedly connected to the frame 1 through a connecting plate 10. A plurality of mounting holes 11 are evenly opened on the connecting plate 10 for the installation of bolts, so as to fix the first base 9 to the frame 1.

[0028] The setting of the first base 9 can not only adjust the position of the rear gas cylinder assembly 3 on the frame 1 as needed, but also increase the overall height of the rear gas cylinder assembly 3, which is convenient for improving the installation position of the side gas cylinder assembly, and further convenient for expanding the capacity of the side gas cylinder assembly.

[0029] like Figure 5 As shown, the control assembly includes a C-shaped bracket 12 and a control panel 13. The C-shaped bracket 12 is used to connect to the frame 1. The C-shaped bracket 12 includes a connecting rod arranged obliquely upward and fixing plates fixedly arranged at both ends of the connecting rod, wherein one fixing plate is fixedly connected to the frame 1 by bolts, and the other fixing plate is fixedly connected to the control panel 13. The control panel 13 is used to connect to the gas cylinder pipeline.

[0030] The control component is located between the rear gas cylinder assembly 3 and the side gas cylinder assembly, which improves the compactness of the overall layout, facilitates the connection and layout of the pipelines, simplifies the pipeline route, and the setting of the C-shaped bracket 12 reserves space for the overall improvement of the side gas cylinder assembly, optimizes the space layout while expanding the capacity, so that the side gas cylinder assembly can be expanded and its overall height can be adjusted according to demand, ensuring the endurance and passability of the vehicle.

[0031] The saddle assembly 5 is mounted on the rear end of the frame 1. Figure 8 and Fig. 9 As shown, the saddle assembly 5 includes a second base 14, a mounting plate 15 and a saddle 16, wherein two second bases 14 are provided, and the two second bases 14 are arranged opposite to each other, the second base 14 is a U-shaped steel structure, the second base 14 is parallel to the longitudinal beam of the frame 1, the second base 14 is buckled on the longitudinal beam of the frame 1 from the side, and a plurality of first bolt holes 17 are provided on the side of the second base 14 along its length direction, so as to fix the second base 14 and the frame 1 together by bolts; A plurality of second bolt holes 18 are provided on the upper surface of the second base 14 along its length and width directions, and a plurality of third bolt holes 19 are also provided on the mounting plate 15. The mounting plate 15 is placed on the upper surfaces of the two second bases 14 and is fixedly connected to the two second bases 14 by bolts, so that the two second bases 14 are connected together by the mounting plate 15, and the saddle 16 is fixedly mounted on the mounting plate 15 by bolts.

[0032] The arrangement of the second bolt hole 18 and the third bolt hole 19 can adjust the relative position between the mounting plate 15 and the second base 14 and the relative position between the saddle 16 and the mounting plate 15 as required. At the same time, the rear gas cylinder assembly 3 can be adjusted in relative position to the frame 1 through the first base 9, so that the capacity of the rear gas cylinder assembly 3 can be expanded as required, and it can also match trailers of different specifications to avoid interference between the trailer and the gas cylinder, thereby increasing the front turning radius and improving the compatibility of the tractor.

[0033] A weight-reducing hole is provided in the middle of the mounting plate 15 to reduce the overall mass of the mounting plate 15. A stopper 20 is also installed on the second base 14. Four stoppers 20 are provided. The four stoppers 20 are distributed on the outsides of the four corners of the mounting plate 15. The stoppers 20 are fixedly connected to the second base 14 by bolts, so that the position of the mounting plate 15 is further limited by the cooperation of the four stoppers 20, thereby ensuring the firmness of the installation and playing a buffering role.

[0034] By configuring the rear gas cylinder assembly 3, the side gas cylinder assembly, the control component and the saddle assembly 5, the CNG tractor can meet the requirements of high passability and front turning radius as well as long cruising range, while expanding the capacity and optimizing the space layout, and improving the passability of the vehicle and the trailer compatibility.

[0035] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A CNG tractor, comprising: A vehicle frame (1) is provided with a cab (2) at the front end of the vehicle frame (1), and is characterized in that it further comprises: A rear gas cylinder assembly (3) is mounted on the vehicle frame (1) and is located behind the cab (2), and the axial direction of the rear gas cylinder assembly (3) is perpendicular to the vehicle frame (1); A side-mounted gas cylinder assembly is mounted on one side of the vehicle frame (1), the side-mounted gas cylinder assembly is close to the gas inlet of the rear-mounted gas cylinder assembly (3) and is located below the rear-mounted gas cylinder assembly (3), and the axial direction of the side-mounted gas cylinder assembly is perpendicular to the rear-mounted gas cylinder assembly (3); A control assembly is mounted on one side of the vehicle frame (1) and is located between the side gas cylinder assembly and the rear gas cylinder assembly (3) and is used for connecting to the gas cylinder pipeline.

2. The CNG tractor according to claim 1, characterized in that: The side-mounted gas cylinder assembly comprises an L-shaped hanger (6), the hanger (6) is provided with a plurality of bolt holes arranged at intervals in the upper and lower parts, a plurality of side-mounted gas cylinders (4) arranged in parallel in the upper and lower parts are mounted on the hanger (6), a shock-absorbing pad (8) is provided between the hanger (6) and the side-mounted gas cylinders (4), the hanger (6) is connected to the vehicle frame (1) by bolts, and the hanger (6) is connected to a protective cover (7) by studs.

3. The CNG tractor according to claim 2, characterized in that: The protective cover (7) covers the upper part, the lower part and the side away from the vehicle frame (1) of the entire side-mounted gas cylinder (4).

4. The CNG tractor according to claim 1, characterized in that: The rear gas cylinder assembly (3) is fixedly connected to the vehicle frame (1) via a first base (9); the first base (9) is placed on a longitudinal beam of the vehicle frame (1) and is fixedly connected to the longitudinal beam via a connecting plate (10); a plurality of mounting holes (11) are provided on the first base (9) along its length and width, and a plurality of mounting holes (11) are evenly provided on the connecting plate (10).

5. The CNG tractor according to claim 4, characterized in that: Two first bases (9) are provided, and the two first bases (9) are arranged opposite to each other. The first base (9) is a channel steel structure, and the first base (9) is parallel to the longitudinal beam.

6. The CNG tractor according to claim 1, characterized in that: The control assembly comprises a C-shaped bracket (12), the C-shaped bracket (12) comprises a connecting rod arranged obliquely upward, a fixing plate is fixedly provided at each end of the connecting rod, one fixing plate is fixedly connected to the vehicle frame (1) by bolts, and a control panel (13) is installed on the other fixing plate, and the control panel (13) is connected to the gas cylinder pipeline.

7. The CNG tractor according to claim 1, characterized in that: A saddle assembly (5) is installed at the rear end of the frame (1), and the saddle assembly (5) comprises a second base (14) arranged on the longitudinal beam, a mounting plate (15) is detachably mounted on the second base (14), and a saddle (16) is detachably mounted on the mounting plate (15).

8. The CNG tractor according to claim 7, characterized in that: Two second bases (14) are provided. The second bases (14) are U-shaped steel structures. The second bases (14) are buckled onto the longitudinal beam from the side. A plurality of first bolt holes (17) are provided on the side of the second base (14) along its length direction. The second base (14) is fixedly connected to the frame (1) by bolts.

9. The CNG tractor according to claim 8, characterized in that: A plurality of second bolt holes (18) are provided on the upper surface of the second base (14) along its length and width directions, a plurality of third bolt holes (19) are provided on the mounting plate (15), the two second bases (14) are fixedly connected together via the mounting plate (15), and the saddle (16) is mounted on the mounting plate (15) via bolts.

10. The CNG tractor according to claim 7, characterized in that: A weight-reducing hole is provided at the middle of the mounting plate (15), and a plurality of stoppers (20) are provided on the peripheral side of the mounting plate (15). The stoppers (20) are fixedly connected to the second base (14) by bolts.

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