Chassis structure of aerial work vehicle

Abstract

The utility model discloses an overhead working truck chassis structure which comprises a chassis main body, a reinforcing device is selectively installed on the chassis main body, the reinforcing device comprises a reinforcing support, and the reinforcing support is selectively provided with a balance weight and / or a battery pack. The chassis main body is independently used as a vehicle chassis structure; on a high-meter-section or large-amplitude or heavy-load overhead working truck, the chassis main body and the reinforcing device are combined to jointly serve as a vehicle chassis structure. The utility model not only has better generality, but also can avoid the design redundancy of the underframe structure of the high-altitude operation vehicle during production, and improves the economical efficiency of the underframe structure of the high-altitude operation vehicle.

Description

Technical Field

[0001] The utility model relates to an aerial work vehicle, in particular to an aerial work vehicle underframe structure. Background Art

[0002] The operating heights of aerial work vehicles on the market have covered all height ranges, with a full range of products, but fierce competition. There are only two ways for existing aerial work vehicle manufacturers on the market to deal with the chassis: one is that the chassis is universal for multiple height segments or multiple amplitudes, which will result in the chassis structure being designed to be strong enough to achieve the performance at the highest meter segment or the maximum amplitude, but for the low meter segment and small amplitude, this design is seriously redundant and not economical; the other method is to design a chassis for each or two height segments or amplitudes. For a single vehicle, the economy is relatively good, but the R&D investment cost is high, the material variety is large, the management cost is high, and the chassis commonality rate is not high. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the shortcomings of low commonality and design redundancy of the existing aerial work vehicle underframes, the utility model provides an aerial work vehicle underframe structure which can reduce design redundancy and improve market competitiveness.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A chassis structure for an aerial work vehicle comprises a chassis main body, on which a reinforcement device can be detachably installed, the reinforcement device comprises a reinforcement bracket, and the reinforcement bracket can be detachably mounted with a counterweight and / or a battery pack: on a low-meter-segment or small-amplitude aerial work vehicle, the chassis main body alone serves as the vehicle chassis structure; on a high-meter-segment or large-amplitude or heavy-load aerial work vehicle, the chassis main body and the reinforcement device are combined to serve together as the vehicle chassis structure.

[0006] It should be noted that the low-meter section mentioned in the utility model usually refers to an operating height below 20 meters, and the high-meter section usually refers to an operating height above 20 meters; the amplitude mentioned in the utility model refers to the distance from the rotation center to the maximum working point after the boom is unfolded, and the small amplitude usually refers to less than 12 meters, and the large amplitude usually refers to more than 12 meters; the heavy load mentioned in the utility model refers to a load of more than 260kg.

[0007] The utility model is equipped with multiple reinforcement devices with different rigidity and strength from strong to weak, and can also be matched with counterweights or battery packs, so it can be modularly configured according to the needs of different products: on high-meter-segment or large-amplitude or heavy-load aerial work vehicles, by adding reinforcement devices, the rigidity and strength of the aerial work vehicle chassis structure are improved; on low-meter-segment or small-amplitude aerial work vehicles, no reinforcement devices are installed or reinforcement devices with weaker strength are installed. In this way, the utility model not only has good versatility, but also can avoid design redundancy of the aerial work vehicle chassis structure during production, thereby improving the economy of the aerial work vehicle chassis structure.

[0008] Furthermore, the chassis body includes a front outrigger box and a rear outrigger box, the front outrigger box is connected to the rear outrigger box via a box-shaped structure, the front end of the box-shaped structure is provided with a first flange for connecting to the upper installation, the top of the box-shaped structure is provided with a reinforcement device mounting surface and a first connecting structure for connecting to the reinforcement device, the bottom of the box-shaped structure is provided with a first connecting seat for connecting to the chassis, and the rear outrigger box is provided with a second connecting seat for connecting to the reinforcement device.

[0009] Furthermore, the front outrigger box includes a left front outrigger box and a right front outrigger box, the left front outrigger box and the right front outrigger box are cross-connected to form an "X"-shaped structure, and the first flange is directly connected to the left front outrigger box and the right front outrigger box respectively.

[0010] Furthermore, the box-shaped structure includes an upper wing plate located on the top surface, a web plate connected to both sides of the upper wing plate, and a first reinforcing rib for connecting the web plates on both sides.

[0011] Furthermore, the front end of the reinforcing device installation surface is set as an inclined surface, the rear end is set as a plane, and the front end height of the reinforcing device installation surface is greater than the rear end height.

[0012] Furthermore, the reinforcing bracket includes a longitudinal beam for connecting to the mounting surface of the reinforcing device and a cross beam for connecting to the rear leg box, the longitudinal beam is provided with a second connecting structure matching the first connecting structure, and the cross beam is provided with a third connecting seat matching the second connecting seat.

[0013] Furthermore, one end of the longitudinal beam is connected to the middle part of the cross beam to form a "T"-shaped structure, and a second reinforcing rib is welded between the longitudinal beam and the cross beam, and a third reinforcing rib is welded inside the longitudinal beam.

[0014] Furthermore, the first connection structure includes a first connection hole and a connection nut welded at the bottom of the connection hole, and the second connection structure is a second connection hole.

[0015] Furthermore, a battery box is embedded and installed in the longitudinal beam, a battery pack is installed in the battery box, and a fourth reinforcing rib is arranged between the battery box and the longitudinal beam.

[0016] Furthermore, a battery cover plate is detachably mounted on the battery box, the adjacent battery packs and the reinforcing brackets are connected and fixed via a battery mounting bracket, and two sides of the battery packs are connected and fixed to the battery box.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model can be used on vehicles with different performances through the flexible combination of the chassis body and the reinforcement device, which greatly improves the commonality of the chassis body parts and reduces the design, production, warehousing and procurement costs: on low-meter or small-amplitude vehicles, the cost can be optimized by removing the reinforcement device; on high-meter or large-amplitude or heavy-load vehicles, a reinforcement device can be installed, or a counterweight can be further installed on the basis of the reinforcement device to form a new reinforcement device; on electric upper-mounted vehicles, the reinforcement device can be designed as a structure integrating a reinforcement bracket, a counterweight and a battery pack, and the battery pack can be embedded and installed in the reinforcement bracket without occupying additional volume.

[0019] 2. The battery pack of the utility model is installed in the center, which improves the overall stability of the vehicle. At the same time, the battery pack is installed in the center, which provides the best protection for the battery pack and avoids damage to the battery pack caused by external collision and extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are 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.

[0021] Figure 1 It is a schematic diagram of the exploded structure of the chassis body and the reinforcement device of the utility model.

[0022] Figure 2 Schematic diagram of the exploded structure of the reinforcement device with battery pack.

[0023] Figure 3 Schematic diagram of the three-dimensional structure of the reinforcement device with a battery pack.

[0024] In the figure: 1, chassis body; 1-1, left front leg box; 1-2 right front leg box; 1-3, rear leg box; 1-4, first flange; 1-5, upper wing plate; 1-6, belly plate; 1-7, first connecting seat; 1-8, first reinforcing rib; 1-9, second connecting seat;

[0025] 2. Reinforcement device; 2-1. Longitudinal beam; 2-2. Rear right cross beam; 2-3. Rear left cross beam; 2-4. Third reinforcing rib; 2-5. Second reinforcing rib; 2-6. Third connecting seat; 2-7. Second flange; 2-8. Battery box; 2-9. Fourth reinforcing rib; 2-10. Battery cover; 2-11. Cover bolt; 2-12. Battery pack; 2-13. Battery mounting bracket. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, 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; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] See also Figure 1 The first embodiment of the utility model comprises a chassis body 1, on which a reinforcing device 2 can be detachably mounted. Whether the reinforcing device 2 is required is determined according to product design.

[0030] The chassis body 1 includes a front leg box and a rear leg box 1-3. The front leg box includes a left front leg box 1-1 and a right front leg box 1-2, and the left front leg box 1-1 and the right front leg box 1-2 are cross-connected to form an "X"-shaped structure. The left front leg box 1-1 and the right front leg box 1-2 are directly connected to the rear leg box 1-3 via a box-shaped structure. The box-shaped structure includes an upper wing plate 1-5 located on the top surface, a web plate 1-6 connected to both sides of the upper wing plate 1-5, and a first reinforcing rib 1-8 for connecting the web plates 1-6 on both sides. The front end of the box-shaped structure is provided with a first flange 1-4 for connecting with the upper body, and the first flange 1-4 can be connected to the upper body through a slewing bearing. The first flange 1-4 is directly connected to the left front leg box 1-1 and the right front leg box 1-2, so that the rigidity between the front leg box and the first flange 1-4 is extremely strong. The top of the box-shaped structure is provided with a reinforcement device installation surface and a first connection structure for connecting with the reinforcement device. The front end of the reinforcement device installation surface is provided as an inclined surface, and the rear end is provided as a plane. The front end height of the reinforcement device installation surface is greater than the rear end height. The bottom of the box-shaped structure is provided with a first connection seat 1-7 for connecting with the chassis. The first connection seat 1-7 can connect the entire chassis body 1 with the chassis by bolts. The rear leg box 1-3 is provided with a second connection seat 1-9 for connecting with the reinforcement device 2.

[0031] The reinforcing bracket includes a longitudinal beam 2-1 for connecting to the mounting surface of the reinforcing device and a cross beam for connecting to the rear leg box 1-3. The cross beam is formed by connecting the rear right cross beam 2-2 and the rear left cross beam 2-3, and one end of the longitudinal beam 2-1 is connected to the middle part of the cross beam to form a "T"-shaped structure. A second reinforcing rib 2-5 is welded between the longitudinal beam 2-1 and the cross beam to strengthen the structure so that the longitudinal beam 2-1 is firmly connected to the cross beam. A third reinforcing rib 2-4 is welded inside the longitudinal beam 2-1. A second connecting structure matching the first connecting structure is provided on the longitudinal beam 2-1, and a third connecting seat 2-6 matching the second connecting seat 1-9 is provided on the cross beam.

[0032] Preferably, the first connection structure includes a circle of first connection holes reserved on the periphery of the reinforcement device installation surface and connection nuts welded at the bottom of the first connection holes, and the second connection structure is a circle of second connection holes arranged on the inner side of the longitudinal beam 2-1 and matching the first connection holes. In this way, by screwing the connection bolts into the first connection holes and the second connection holes and threading the connection bolts with the connection nuts, the detachable connection between the reinforcement device 2 and the chassis body 1 can be achieved.

[0033] When the reinforcing device 2 is connected to the chassis body 1, the rear right cross beam 2-2 and the rear left cross beam 2-3 are just pressed on the rear leg box 1-3, and the third connecting seat 2-6 and the second connecting seat 1-9 are connected by bolts to achieve fixation. The bottom of the longitudinal beam 2-1 is pressed on the upper surface of the upper wing plate 1-5 (the reinforcing device installation surface), and is connected to the connecting nut reserved at the bottom of the upper wing plate 1-5 by bolts, so that the entire chassis body 1 and the reinforcing device 2 form a whole, and the rigidity is enhanced.

[0034] like Figure 2 , Figure 3 As shown, the structure of the second embodiment of the utility model is roughly the same as that of the first embodiment, and the only difference is that a battery box 2-8 is embedded and installed in the longitudinal beam 2-1, and a battery pack 2-12 is installed in the battery box 2-8.

[0035] The second flange 3-7 is welded to the top of the battery box 2-8, and the second flange 3-7 is connected and fixed to the battery cover 2-10 by bolts, which not only forms a complete box-shaped structure for the battery box 2-8, but also facilitates the installation, maintenance and maintenance of the battery pack 2-12. The fourth reinforcing rib 2-9 is welded between the second flange 3-7, the battery box 2-8 and the longitudinal beam 2-1 to form a stable structure.

[0036] In order to achieve the installation and fixation of the battery pack 2-12, the bottom of the battery box 2-8 is hollowed out so that the bottom of the battery pack 2-12 is directly in contact with the upper wing plate 1-5. At the same time, the adjacent battery packs 2-12 are connected and fixed to the upper wing plate 1-5 of the reinforcing bracket through the battery mounting bracket 2-13, and the two sides of each battery pack 2-12 are fixed to the battery box 2-8 by bolts.

[0037] A vertical waist hole is opened on the battery mounting bracket 2-13, and a horizontal waist hole is opened on the upper wing plate 1-5 of the reinforcing bracket. When the battery pack 2-12 is connected to the reinforcing bracket and the battery mounting bracket 2-13 by connecting bolts, the connecting bolts can be moved in the vertical waist hole and the horizontal waist hole to achieve adjustment up, down, left, right, front and back, thereby reducing the impact of manufacturing errors.

[0038] The reinforcing device of the second embodiment of the utility model can be conveniently connected to the electric upper body of the aerial work vehicle, and simultaneously plays the triple role of reinforcing the structural rigidity and installing batteries and counterweights.

[0039] The above is only a specific implementation scheme of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the field can make many possible changes and modifications to the technical scheme of the utility model by using the technical content disclosed above without departing from the scope of the technical scheme of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical scheme of the utility model shall fall within the protection scope of the technical scheme of the utility model.

Claims

1. A chassis structure of an aerial work vehicle, comprising a chassis body, characterized in that: The reinforcing device can be detachably mounted on the chassis body, and the reinforcing device includes a reinforcing bracket, and the reinforcing bracket can be detachably mounted with a counterweight and / or a battery pack: On a low-meter or small-range aerial work vehicle, the chassis body is used alone as the vehicle chassis structure; On high-meter-high, large-range or heavy-load aerial work vehicles, the chassis body and the reinforcement device are combined to serve as the vehicle chassis structure.

2. The aerial work vehicle chassis structure according to claim 1, characterized in that: The chassis body includes a front leg box and a rear leg box, the front leg box is connected to the rear leg box via a box-shaped structure, the front end of the box-shaped structure is provided with a first flange for connecting to the upper installation, the top of the box-shaped structure is provided with a reinforcement device installation surface and a first connecting structure for connecting to the reinforcement device, the bottom of the box-shaped structure is provided with a first connecting seat for connecting to the chassis, and the rear leg box is provided with a second connecting seat for connecting to the reinforcement device.

3. The aerial work vehicle underframe structure according to claim 2, characterized in that: The front outrigger box includes a left front outrigger box and a right front outrigger box, the left front outrigger box and the right front outrigger box are cross-connected to form an "X"-shaped structure, and the first flange is directly connected to the left front outrigger box and the right front outrigger box respectively.

4. The aerial work vehicle underframe structure according to claim 2, characterized in that: The box-shaped structure includes an upper wing plate located on the top surface, a web plate connected to both sides of the upper wing plate, and a first reinforcing rib used to connect the web plates on both sides.

5. The aerial work vehicle underframe structure according to claim 2, characterized in that: The front end of the reinforcing device installation surface is set as an inclined surface, and the rear end is set as a flat surface, and the front end height of the reinforcing device installation surface is greater than the rear end height.

6. The aerial work vehicle underframe structure according to claim 2, characterized in that: The reinforcing bracket includes a longitudinal beam for connecting to the mounting surface of the reinforcing device and a cross beam for connecting to the rear leg box. The longitudinal beam is provided with a second connecting structure matching the first connecting structure, and the cross beam is provided with a third connecting seat matching the second connecting seat.

7. The aerial work vehicle underframe structure according to claim 6, characterized in that: One end of the longitudinal beam is connected to the middle part of the cross beam to form a "T"-shaped structure, and a second reinforcing rib is welded between the longitudinal beam and the cross beam, and a third reinforcing rib is welded inside the longitudinal beam.

8. The aerial work vehicle underframe structure according to claim 6, characterized in that: The first connection structure includes a first connection hole and a connection nut welded at the bottom of the connection hole, and the second connection structure is a second connection hole.

9. The aerial work vehicle underframe structure according to claim 6, characterized in that: A battery box is embedded and installed in the longitudinal beam, the battery pack is installed in the battery box, and a fourth reinforcing rib is arranged between the battery box and the longitudinal beam.

10. The aerial work vehicle underframe structure according to claim 9, characterized in that: The battery cover plate is detachably mounted on the battery box, the adjacent battery packs are connected and fixed to the reinforcing bracket via a battery mounting bracket, and the two sides of the battery pack are connected and fixed to the battery box.

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