Overhead working truck rotating table mounting structure

Abstract

The utility model relates to the technical field of overhead working trucks, and discloses an overhead working truck rotating table mounting structure which comprises a truck body chassis and a rotating table, and the truck body chassis comprises a chassis large beam frame and a chassis auxiliary beam frame arranged on the chassis large beam frame; the rotary table comprises a rotary table bottom plate and a rotary table cylinder which are integrally connected, the rotary table bottom plate is fixedly connected to the upper surface of the chassis auxiliary beam frame, one end of the rotary table cylinder protrudes out of the upper surface of the rotary table bottom plate, and the other end of the rotary table cylinder penetrates through the rotary table bottom plate, extends into the chassis auxiliary beam frame and is fixedly connected with the chassis auxiliary beam frame. And the structural strength is high, and the use stability is good.

Description

Technical Field

[0001] This utility model relates to the field of aerial work platform technology, and in particular to an aerial work platform rotary table mounting structure. Background Technology

[0002] Aerial work platforms are specialized vehicles used to transport workers and equipment to work sites for aerial operations. They are equipped with telescopic booms to lift workers or equipment to designated heights. The telescopic boom is mounted on the platform via a slewing mechanism, allowing for 360° rotation and providing the necessary flexibility. The slewing mechanism includes a slewing bearing and a turntable. The turntable houses the telescopic boom structure, hydraulic system, electrical system, and other components. The turntable cylinder is part of the platform and is fixed to the base frame. It engages with the internal gear ring seat of the slewing bearing. With the help of the slewing bearing, the turntable can rotate 360° relative to the base frame or slew within a certain angle range, thus expanding the working range of the aerial work platform and enabling workers to reach different work locations. In existing technology, the bottom of the turntable cylinder is fixed to the platform chassis by welding. Since the turntable cylinder has a certain height, welding only at the bottom can cause the turntable to wobble during the rotation of the telescopic boom, affecting the operational stability and safety of the boom. Utility Model Content

[0003] Based on the above, the purpose of this utility model is to provide a rotating platform mounting structure for aerial work platforms, which has high structural strength and good stability in use.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rotating platform mounting structure for an aerial work platform includes:

[0006] The vehicle chassis includes a chassis main beam frame and a chassis sub-beam frame mounted on the chassis main beam frame;

[0007] A rotary table includes an integrally connected turntable base plate and a turntable cylinder. The turntable base plate is fixedly connected to the upper surface of the chassis sub-beam frame. One end of the turntable cylinder protrudes from the upper surface of the turntable base plate, and the other end passes through the turntable base plate and extends into the chassis sub-beam frame, and is fixedly connected to the chassis sub-beam frame.

[0008] As a preferred embodiment of the rotating platform mounting structure for aerial work platforms, the rotating platform cylinder is welded to the chassis sub-beam frame.

[0009] As a preferred embodiment of the rotating platform mounting structure for an aerial work platform, one end of the rotating platform cylinder extends into the chassis sub-beam frame and abuts against or is fixedly connected to the upper surface of the chassis main beam frame.

[0010] As a preferred embodiment of the rotating platform mounting structure for aerial work platforms, the base plate of the rotating platform is welded to the sub-beam frame of the chassis.

[0011] As a preferred embodiment of the rotating platform mounting structure for aerial work platforms, the outer periphery of the rotating platform cylinder, which protrudes from the upper surface of the rotating platform base plate, is provided with multiple reinforcing ribs at intervals.

[0012] As a preferred embodiment of the rotating platform installation structure for an aerial work platform, the end of the rotating platform cylinder facing away from the chassis sub-beam extends radially outward to form a skirt, and the two ends of each reinforcing rib are respectively fixedly connected to the skirt and the rotating platform base plate.

[0013] As a preferred embodiment of the rotating platform mounting structure for an aerial work platform, the chassis sub-beam frame includes multiple first beams and second beams arranged in a crisscross pattern at intervals. One end of the rotating platform cylinder extends between two adjacent first beams and two adjacent second beams, and is fixedly connected to and abutted against two adjacent first beams and / or fixedly connected to two adjacent second beams.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model provides a rotating platform installation structure for an aerial work platform. One end of the rotating platform cylinder extends through the bottom plate and into the chassis sub-beam frame, making the connection between the rotating platform cylinder and the vehicle chassis more stable and reliable, and less prone to shaking, thus ensuring the working reliability and stability of the rotating platform. Furthermore, by fixing it to the chassis sub-beam frame, the connection stability between the rotating platform cylinder and the vehicle chassis is further enhanced, resulting in a high structural strength. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the installation structure of the rotating platform of the aerial work vehicle provided in this embodiment of the utility model;

[0018] Figure 2 This is a top view (skirt not shown) of the rotating platform mounting structure of the aerial work vehicle provided in this embodiment of the utility model;

[0019] Figure 3This is a bottom view of the rotating platform mounting structure of the aerial work vehicle provided in this embodiment of the utility model (the chassis beam is not shown).

[0020] In the picture:

[0021] 1. Vehicle chassis; 11. Chassis main beam frame; 12. Chassis sub-beam frame; 121. First beam; 122. Second beam; 2. Rotary table; 21. Rotary table base plate; 22. Rotary table cylinder; 23. Reinforcing rib. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are merely used for descriptive distinction and have no special meaning.

[0026] Aerial work platforms are specialized vehicles used to transport workers and equipment to work sites for aerial operations. They are equipped with telescopic booms to lift workers or equipment to designated heights. The telescopic boom is mounted on the platform via a slewing mechanism, allowing for 360° rotation and providing the necessary flexibility. The slewing mechanism includes a slewing bearing and a turntable. The turntable houses the telescopic boom structure, hydraulic system, electrical system, and other components. The turntable cylinder is part of the platform and is fixed to the base frame. It engages with the internal gear ring seat of the slewing bearing. With the aid of the slewing bearing, the turntable can rotate 360° relative to the base frame or slew within a certain angle range, thus expanding the working range of the aerial work platform and enabling workers to reach different work locations. Since the slewing mechanism is a relatively mature existing technology for aerial work platforms, it will not be described in detail here. In the existing technology, the bottom of the turntable cylinder is fixed to the chassis of the aerial work platform by welding. Since the turntable cylinder has a certain height, the turntable is prone to shaking during the rotation of the telescopic boom by welding only the bottom, which affects the operational stability and safety of the telescopic boom.

[0027] Based on the above-mentioned technical problems, this embodiment provides a rotating platform mounting structure for an aerial work platform, such as... Figures 1 to 3 As shown, the aerial work platform rotary table mounting structure includes a chassis 1 and a rotary table 2. The chassis 1 includes a chassis main beam 11 and a chassis sub-beam 12 mounted on the chassis main beam 11. The rotary table 2 includes an integrally connected turntable base plate 21 and a turntable cylinder 22. The turntable base plate 21 is fixedly connected to the upper surface of the chassis sub-beam 12. One end of the turntable cylinder 22 protrudes from the upper surface of the turntable base plate 21, and the other end penetrates the turntable base plate 21 and extends into the chassis sub-beam 12, where it is fixedly connected. By having one end of the turntable cylinder 22 penetrate the turntable base plate 21 and extend into the chassis sub-beam 12, the connection between the turntable cylinder 22 and the chassis 1 is more stable and reliable, less prone to shaking, thus ensuring the working reliability and stability of the rotary table 2. Furthermore, the fixed connection between the turntable cylinder 22 and the chassis 1 is further strengthened, resulting in higher structural strength.

[0028] Specifically, the chassis sub-beam frame 12 includes multiple intersecting first beams and second beams. One end of the turntable cylinder 22 extends between two adjacent first beams 121 and two adjacent second beams 122, and is fixedly connected to and abutted against the two adjacent first beams 121 and / or to and abutted against the two adjacent second beams 122. In this structure, the portion of the turntable cylinder 22 is inserted into the chassis sub-beam frame 12, resulting in stronger connection stability between the turntable 2 and the vehicle chassis 1. The turntable 2 is less prone to swaying under stress, ensuring the operational reliability of the aerial work platform. Especially when the turntable cylinder 22 is fixed against and abutted against the two adjacent first beams 121 and two adjacent second beams 122, the circumference of the turntable cylinder 22 is confined within the rectangular space formed by the two first beams 121 and two second beams 122, effectively stabilizing it and preventing swaying.

[0029] Preferably, one end of the turntable cylinder 22 extending into the chassis sub-beam frame 12 is abutted or fixedly connected to the upper surface of the chassis main beam frame 11. That is, the length of the turntable cylinder 22 extending into the chassis sub-beam frame 12 reaches its maximum, and it abuts or is fixedly connected to the chassis main beam frame 11, further improving the stability of the turntable cylinder 22.

[0030] In this embodiment, the chassis main beam 11 includes a plurality of intersecting third and fourth beams, and one end of the turntable cylinder 22 extends into the chassis sub-beam 12 and abuts against or is fixedly connected to the third and / or fourth beams.

[0031] Optionally, one end of the turntable cylinder 22 extending into the chassis sub-beam is welded to the chassis sub-beam frame 12, resulting in high connection stability. Of course, in other embodiments, the end of the turntable cylinder 22 extending into the chassis sub-beam frame 12 can also be connected to the chassis sub-beam frame 12 in other ways, such as a threaded connection, or connected to the chassis main beam frame 11, depending on actual needs.

[0032] More specifically, the turntable base plate 21 is welded to the chassis sub-beam frame 12. The turntable base plate 21 provides operating space for the operator and has a large connection area with the vehicle chassis 1, which makes the turntable 2 more stable on the vehicle chassis 1.

[0033] Preferably, the outer periphery of the turntable cylinder 22, which protrudes from the upper surface of the turntable base plate 21, is provided with a plurality of reinforcing ribs 23 at intervals. The reinforcing ribs 23 can further enhance the structural stability and strength of the turntable cylinder 22, making it have better load-bearing performance and better stability when bearing large loads, and less prone to shaking and bending.

[0034] In this embodiment, the end of the turntable cylinder 22 facing away from the chassis sub-beam frame 12 extends radially outward to form a skirt, and the two ends of each reinforcing rib 23 are fixedly connected to the skirt and the turntable base plate 21, respectively. Under the above structure, the overall stress on the turntable 2 is relatively uniform, and the reinforcing ribs 23 can effectively enhance the overall structural strength and stability of the turntable 2.

[0035] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. An aerial work platform truck rotating platform mounting structure characterized by, Comprise: The chassis includes a chassis girder frame and a chassis sub-girder frame arranged on the chassis girder frame; The rotating table includes an integrated rotating table bottom plate and a rotating table cylinder, the rotating table bottom plate is fixedly connected to the upper surface of the chassis sub-girder frame, one end of the rotating table cylinder protrudes from the upper surface of the rotating table bottom plate, the other end penetrates the rotating table bottom plate and extends into the chassis sub-girder frame, and is fixedly connected to the chassis sub-girder frame.

2. The aerial work platform truck rotating platform mounting structure according to claim 1, characterized in that, The rotating table cylinder is welded to the chassis sub-girder frame.

3. The high-altitude work vehicle rotary table mounting structure of claim 1, wherein, The end of the rotating table cylinder extending into the chassis sub-girder frame abuts or is fixedly connected to the upper surface of the chassis girder frame.

4. The high-altitude work vehicle rotary table mounting structure of claim 1, wherein, The rotating table bottom plate is welded to the chassis sub-girder frame.

5. The high-altitude work vehicle rotary table mounting structure of claim 1, wherein, The rotating table cylinder protruding from the upper surface of the rotating table bottom plate is provided with a plurality of reinforcing ribs at intervals around the outer periphery.

6. The high-altitude work vehicle rotary table mounting structure of claim 5, wherein, The end of the rotating table cylinder away from the chassis sub-girder frame extends radially outward to form a skirt, and the two ends of each reinforcing rib are fixedly connected to the skirt and the rotating table bottom plate, respectively.

7. The high-altitude work vehicle rotary table mounting structure of claim 1, wherein, The chassis sub-girder frame includes a plurality of first beams and second beams arranged in a longitudinal and transverse staggered manner, one end of the rotating table cylinder extends into two adjacent first beams and two adjacent second beams, and is fixedly connected to the two adjacent first beams and / or the two adjacent second beams.

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