Gearbox hanging bracket and commercial vehicle

Abstract

The utility model discloses a gearbox hanging bracket and a commercial vehicle, and belongs to the field of vehicles. According to the technical scheme, the gearbox hanging bracket comprises a hanging bracket beam, hanging assemblies are arranged at the positions, close to the two ends, of the bottom face of the hanging bracket beam respectively, and gearbox connecting structures are arranged on the opposite side faces of the lower ends of the two hanging assemblies. The gearbox hanging bracket structure has the advantages that the gearbox is installed in a two-side hanging mode, the hanging assembly and the gearbox coincide in the height direction, the distance between the gearbox and the hanging beam is shortened, the overall height of the gearbox hanging bracket structure and the gearbox is reduced, the overall structure is not higher than the upper plane of a vehicle frame, and meanwhile the overall structure is not higher than the upper plane of the vehicle frame. The ground clearance is increased; and meanwhile, the mounting firmness of the gearbox is improved through two-point hoisting.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a gearbox hanger and a commercial vehicle. Background Art

[0002] Commercial vehicles include freight trucks and buses. The frame structure of freight trucks is significantly different from that of buses and general passenger cars. Freight trucks usually adopt a frame structure with longitudinal and transverse beams, and the vehicle's power system, cab and cargo part are installed on the frame. Commercial vehicles are cars used to transport people and goods in terms of design and structural characteristics. The overall power system of a commercial vehicle includes a series-connected engine, gearbox, axle, and the drive shaft, differential and other structures in between. The power output of the engine is transmitted to each axle through the gearbox, thereby driving the vehicle forward.

[0003] Among them, the gearbox is one of the important components of the vehicle power system. It is a mechanism used to change the speed and torque from the engine, and is used to fix or change the transmission ratio of the output shaft and the input shaft. When the existing gearbox is installed on the vehicle, a crossbeam is usually installed between two frame longitudinal beams and then the gearbox is suspended and installed in the middle of the crossbeam. Due to the ground clearance requirements of the vehicle, the crossbeam suspending the gearbox is usually bent upward in the middle, thereby increasing the installation position of the gearbox and ensuring the ground clearance of the vehicle.

[0004] However, in order to meet the special installation requirements of some special vehicles, the various crossbeams on the frame assembly need to be flush with or lower than the upper wing surface of the frame longitudinal beam, so the gearbox crossbeam also needs to be flush with or lower than the upper wing surface of the frame longitudinal beam, but the middle position between this gearbox crossbeam and the gearbox is not enough to meet the middle layout of the gearbox hanger, so that the position of the gearbox cannot meet the ground clearance requirement. Summary of the invention

[0005] The utility model provides a gearbox hanger to solve the problem that the installation structure of the gearbox on the current commercial vehicle needs to occupy a large height space and cannot simultaneously meet the space requirements and ground clearance on the plane of the frame.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is a gearbox hanger, including a hanger beam, the bottom surface of the hanger beam is respectively provided with suspension components near the two ends, and the lower ends of the two suspension components are provided with gearbox connecting structures on the sides facing each other. This solution adopts the form of two-side hanging to install the gearbox, so that the suspension component and the gearbox overlap in the height direction, reducing the distance between the gearbox and the hanging beam, thereby reducing the overall height of the gearbox hanger structure and the gearbox, while the overall structure is not higher than the upper plane of the frame, the ground clearance is increased; at the same time, the two-point hanging improves the installation firmness of the gearbox.

[0007] Preferably, the suspension assembly includes a suspension seat, a suspension plate is hingedly mounted at the lower part of the suspension seat, the hinge axis between the suspension plate and the suspension seat is horizontal and perpendicular to the vehicle driving direction, and the gearbox connection structure is arranged at the lower part of the suspension plate. The suspension seat adopts an articulated structure, and the stress of the suspension assembly is smaller when the vehicle vibrates.

[0008] Preferably, the gearbox connecting structure includes a plurality of through holes opened on the hanging plate, and connecting bolts are provided in the through holes.

[0009] Preferably, the suspension seat comprises an outer shell, a through cavity is provided in the outer shell along the hinge axis, a rubber block is provided in the cavity, a notch is provided in the middle of the outer shell and the rubber block, and the suspension plate is located in the notch.

[0010] Preferably, a hinge hole is formed in the rubber block, a hinge shaft assembly is installed in the hinge hole, and the hinge shaft assembly passes through the upper part of the hanging plate. The hinge shaft is connected to the rubber block to achieve a shock absorbing effect.

[0011] Preferably, the rubber block is also provided with a plurality of arc holes, and the plurality of arc holes are arranged around the hinge hole, so as to further improve the shock absorption capability.

[0012] Preferably, the hanger beam includes an upper beam body and a lower beam body, the upper beam body includes a lower concave plate and upper connecting plates located at both ends of the lower concave plate, the lower beam body includes an upper convex plate and lower connecting plates located at both ends of the upper convex plate, the lower surface of the lower concave plate is attached to and fixedly connected with the upper surface of the upper convex plate. The beam body adopts a flat plate structure with a lower upper surface and a higher lower surface, which further improves the installation position of the gearbox.

[0013] Preferably, the lower concave plate and the upper connecting plates at both ends are transitionally connected via an upper inclined plate; the upper convex plate and the lower connecting plate are transitionally connected via a lower inclined plate. The panels at both ends of the hanger beam form a triangular structure to improve the installation strength of the hanger beam.

[0014] Preferably, a reinforcement portion is provided between the upper inclined plate and the lower concave plate to increase the rigidity of the hanger beam and avoid bending.

[0015] On the other hand, the utility model also provides a commercial vehicle, including a frame, the frame including two parallel frame longitudinal beams, and also including the above-mentioned gearbox hanger, the two ends of the hanger beam are respectively fixedly connected to the two frame longitudinal beams, and the two suspension components are connected to the two sides of the gearbox through the gearbox connecting structure.

[0016] It can be seen from the above technical solutions that the advantages of the utility model are that it adopts a left-right arrangement to meet the arrangement requirements. The left-right arrangement of the gearbox hanger can ensure better stability of the gearbox, which is equivalent to changing the gearbox installation method from a single-point arrangement to a double-point arrangement, which improves the connection stability of the gearbox; the flat-plate hanger beam is adopted to further compress the height space and improve the gearbox installation position, and the structural design of the hanger beam ensures its own rigidity and installation strength; the suspension component adopts an articulated structure, and shock absorption is achieved through rubber blocks, and the installation effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model.

[0019] Figure 2 It is a structural schematic diagram of the suspension assembly in the first embodiment of the utility model.

[0020] Figure 3 It is a schematic diagram of the structure of the frame in the second embodiment of the utility model.

[0021] Description of main reference numerals

[0022] 1. Frame longitudinal beam, 2. Hanger beam, 3. Gearbox, 4. Hanger plate, 5. Cotter pin, 6. Pin shaft, 7. Slotted nut, 8. Hanger seat, 9. Flat washer. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, 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.

[0024] Embodiment 1

[0025] A gearbox hanger comprises a hanger beam 2, wherein the hanger beam 2 comprises an upper beam body and a lower beam body, wherein the upper beam body is a plate body structure, comprising a lower concave plate and upper connecting plates located at both ends of the lower concave plate, wherein the lower concave plate is located in a horizontal plane, and both ends of the lower concave plate are connected with upper inclined plates, and the upper inclined plates extend obliquely upward toward both ends of the lower concave plate, and the upper connecting plates are located at the edge of the upper inclined plate away from the lower concave plate, and the upper connecting plates comprise a horizontal portion and a vertical portion, wherein the horizontal portion is connected to the upper inclined plate, and the vertical portion extends downwardly from the horizontal portion, and the vertical portion of the upper connecting plate is The straight portion is used to connect the frame longitudinal beams. A reinforcement portion is provided between the upper inclined plate and the lower concave plate, and the reinforcement portion is an upward convex rib plate structure. The lower beam body is a plate body structure, including an upper convex plate and lower inclined plates and a lower connecting plate located at both ends of the upper convex plate. The upper convex plate is a horizontal panel, the lower inclined plates are located at both ends of the upper convex plate and extend obliquely downward, the lower connecting plate is located at the lower side edge of the lower inclined plate and is located in the horizontal plane, and is used to connect the frame longitudinal beams. The lower surface of the lower concave plate is attached to and fixedly connected to the upper surface of the upper convex plate.

[0026] The bottom surface of the upper convex plate of the hanger beam 2 is respectively provided with a suspension assembly near both ends, and the suspension assembly includes a hanger 8, and a hanger plate 4 is hingedly installed at the lower part of the hanger 8, and the hinge axis between the hanger plate 4 and the hanger 8 is horizontal and perpendicular to the driving direction of the vehicle. Specifically, the hanger 8 includes an outer shell, and a through cavity is provided in the outer shell along the hinge axis, and a rubber block is provided in the cavity, and a notch is provided in the middle of the outer shell and the rubber block, and the hanger plate 4 is located in the notch, and a hinge hole is provided through the rubber block, and an articulation shaft assembly is installed in the articulation hole, and the articulation shaft assembly passes through the upper part of the hanger plate 4, and the articulation shaft assembly includes a pin 6, and both ends of the pin 6 pass through the outside of the rubber block, and two flat washers 9 are installed on the pin 6, and the two flat washers are respectively located on both sides of the hanger 8, and one end of the pin 6 is provided with a shoulder, and the other end is fixed and limited by a cotter pin 5 and a slotted nut 7; a plurality of arc holes are also penetrated through the rubber block, and a plurality of arc holes are arranged around the articulation hole.

[0027] A gearbox connecting structure is provided below the hanging plate 4. The gearbox connecting structure includes a plurality of through holes opened on the hanging plate 4. Connecting bolts are provided in the through holes. The connecting bolts are used to connect the gearbox.

[0028] Embodiment 2

[0029] A commercial vehicle provided in Example 1 includes a frame, the frame includes two parallel frame longitudinal beams 1, and also includes the gearbox hanger provided in Example 1, the two ends of the hanger beam 2 are respectively fixedly connected to the two frame longitudinal beams, and the two suspension components are connected to the two sides of the gearbox 3 through the gearbox connection structure.

[0030] It can be seen from the above embodiments that the beneficial effect of the utility model is that the left-right arrangement is adopted to meet the arrangement requirements. The left-right arrangement of the gearbox hanger can ensure better stability of the gearbox, which is equivalent to changing the gearbox installation method from a single-point arrangement to a double-point arrangement, thereby improving the connection stability of the gearbox; the flat-plate hanger beam is adopted to further compress the height space, improve the gearbox installation position, and ensure its own rigidity and installation strength through the structural design of the hanger beam; the suspension assembly adopts an articulated structure, and realizes shock absorption through rubber blocks, and the installation effect is good. The above description of the disclosed embodiments enables professional and technical personnel in this field to implement or use the utility model. Various modifications to these embodiments will be obvious to professional and technical personnel in this field, and the general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed in this article.

Claims

1. A gearbox hanger, comprising a hanger beam (2), characterized in that: Suspension assemblies are respectively provided at positions near both ends of the bottom surface of the hanger beam (2), and gearbox connection structures are provided at the sides of the lower ends of the two suspension assemblies that face each other; the suspension assembly comprises a hanger seat (8), a hanger plate (4) is hingedly mounted at the lower part of the hanger seat (8), the hinge axis between the hanger plate (4) and the hanger seat (8) is horizontal and perpendicular to the driving direction of the vehicle, and the gearbox connection structure is arranged at the lower part of the hanger plate (4).

2. The gearbox hanger according to claim 1, characterized in that: The gearbox connection structure comprises a plurality of through holes formed on the hanging plate (4), and connection bolts are provided in the through holes.

3. The gearbox hanger according to claim 1 or 2, characterized in that: The suspension seat (8) comprises an outer shell, a through cavity is provided in the outer shell along the hinge axis, a rubber block is provided in the cavity, a notch is provided in the middle of the outer shell and the rubber block, and the suspension plate (4) is located in the notch.

4. The gearbox hanger according to claim 3, characterized in that: A hinge hole is formed through the rubber block, a hinge shaft assembly is installed in the hinge hole, and the hinge shaft assembly passes through the upper part of the hanging plate (4).

5. The gearbox hanger according to claim 4, characterized in that: The rubber block is also provided with a plurality of arc holes, and the plurality of arc holes are arranged around the hinge hole.

6. The gearbox hanger according to claim 1, characterized in that: The hanger beam (2) comprises an upper beam body and a lower beam body, the upper beam body comprises a lower concave plate and upper connecting plates located at both ends of the lower concave plate, the lower beam body comprises an upper convex plate and lower connecting plates located at both ends of the upper convex plate, and the lower surface of the lower concave plate is affixed to and fixedly connected with the upper surface of the upper convex plate.

7. The gearbox hanger according to claim 6, characterized in that: The lower concave plate and the upper connecting plates at both ends are transitionally connected via upper inclined plates; the upper convex plate and the lower connecting plate are transitionally connected via lower inclined plates.

8. The gearbox hanger according to claim 7, characterized in that: A reinforcement portion is provided between the upper inclined plate and the lower concave plate.

9. A commercial vehicle, comprising a frame, the frame comprising two parallel frame longitudinal beams (1), characterized in that: It also comprises the gearbox hanger as claimed in any one of claims 1 to 8, wherein the two ends of the hanger beam (2) are respectively fixedly connected to the two frame longitudinal beams, and the two suspension components are connected to the two sides of the gearbox through the gearbox connection structure.

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