Anti-inclination chassis and aerial work platform

Abstract

The invention relates to the technical field of aerial work platforms, and discloses an anti-toppling chassis and an aerial work platform, the anti-toppling chassis comprises a frame, an axle hinged to the end of the frame through a pin shaft and an anti-toppling mechanism, and the anti-toppling mechanism is connected with the frame and the axle; the anti-tilting mechanism comprises a leveling rod used for being connected with a vehicle frame, rocker arms arranged on the two sides of the vehicle frame respectively and connected to the ends of the leveling rod and a connecting rod assembly, the two ends of the connecting rod assembly are connected with the rocker arms and the vehicle axle respectively, and the connecting rod assembly is configured to rotate when the vehicle frame tilts. Torques in opposite directions are applied to the two ends of the leveling rod through the rocker arm. According to the anti-tilting chassis, the anti-tilting structure is arranged between the axle and the frame, when the frame tilts, the two ends of the leveling rod bear the moments in the opposite directions, the two moments in the opposite directions are transmitted along the leveling rod, the moment in the direction opposite to the tilting direction is applied to the frame, and then the tilting angle of the frame is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of aerial work platforms, and particularly to an anti-tipping chassis. On this basis, it also relates to an aerial work platform. Background Art

[0002] An aerial work platform is a special mechanical equipment with a function of lifting a work basket. The work basket can lift personnel, equipment, etc. to high altitudes for operations. Aerial work platforms can be classified according to the moving method into: self-propelled aerial work platforms, mobile aerial work platforms, towed aerial work platforms, vehicle-mounted aerial work platforms, etc.

[0003] Existing aerial work platforms generally include a chassis and an upper vehicle working mechanism installed on the chassis. When the aerial work platform moves to an uneven road surface or a slope, the chassis tilts, which easily causes the problem of the aerial work platform tipping over. Summary of the Invention

[0004] The purpose of the present invention is to provide an anti-tipping chassis to achieve adaptive adjustment of the chassis inclination angle and reduce the risk of the aerial work platform tipping over.

[0005] To achieve the above purpose, the present invention provides an anti-tipping chassis, including: a vehicle frame, an axle articulated to the end of the vehicle frame through a pin shaft, and an anti-tipping mechanism, wherein the anti-tipping mechanism is respectively connected to the vehicle frame and the axle; wherein, the anti-tipping mechanism includes a leveling rod for connecting to the vehicle frame, rocker arms respectively arranged on both sides of the vehicle frame and connected to the ends of the leveling rod, and a connecting rod assembly, both ends of the connecting rod assembly are respectively connected to the rocker arm and the axle, and the connecting rod assembly is configured to, when the vehicle frame tilts, apply torques with opposite directions to both ends of the leveling rod through the rocker arm.

[0006] In some embodiments, the leveling rod includes an elastic rod connected to the vehicle frame, and the rocker arms are respectively connected to both ends of the elastic rod.

[0007] In some embodiments, the anti-tipping mechanism further includes a bushing sleeved on the leveling rod, and the bushing is installed in a bushing support of the vehicle frame. [[ID=Z6]]

[0008] In some embodiments, the anti-tipping mechanism further includes a stop disk sleeved on the leveling rod, the stop disk is fixedly connected to the leveling rod and installed on the side of the bushing away from the vehicle frame.

[0009] In some embodiments, the leveling rod is disposed through both sides of the vehicle frame, the bushing support is disposed on the side wall of the vehicle frame, the bushing is sleeved on the leveling rod and installed in the bushing support, and the stop disc is sleeved on the leveling rod and installed on the side of the bushing away from the vehicle frame.

[0010] In some embodiments, the connecting rod assembly includes a connecting rod and joint components respectively disposed at both ends of the connecting rod. The connecting rod is connected to the rocker arm and the axle through the joint components respectively.

[0011] In some embodiments, the joint component includes ball joint connectors disposed at both ends of the connecting rod. The connecting rod is connected to the rocker arm and the axle through the ball joint connectors respectively.

[0012] In some embodiments, the length of the connecting rod is adjustable.

[0013] In some embodiments, the anti-roll chassis further includes a floating oil cylinder. The floating oil cylinder and the anti-roll mechanism are oppositely disposed at both ends of the vehicle frame. The axle includes a front axle and a rear axle respectively hinged to both ends of the vehicle frame. The floating oil cylinder is respectively disposed on both sides of the vehicle frame, one end is connected to the vehicle frame, and the other end is connected to one of the front axle and the rear axle. The other end of the connecting rod assembly is connected to the other of the front axle and the rear axle.

[0014] In some embodiments, the anti-roll chassis further includes steering knuckles respectively hinged to the ends of the axle, a traveling speed reducer installed on the steering knuckles, and tires drivingly connected to the traveling speed reducer.

[0015] On this basis, the present invention further provides an aerial work platform, including an upper vehicle working mechanism and the foregoing anti-roll chassis. The upper vehicle working mechanism is installed on the anti-roll chassis.

[0016] Through the above technical solutions, the axle is hinged to the vehicle frame. For example, the front axle and the rear axle are respectively hinged to the vehicle frame, and the front axle and the rear axle can swing relative to the vehicle frame. When the front axle and / or the rear axle travels on an uneven road surface, the front axle and / or the rear axle can swing relative to the vehicle frame, thereby improving the road adaptability of the anti-roll chassis of the present invention. And when the anti-roll chassis is in a traveling state, the front axle and the rear axle can swing independently of each other. In a harsh road condition, the front and rear axles can generate opposite swing angles, and the relative swing angle between the front and rear axles is larger, so that it can easily face the traveling state of the cross axle, thereby improving the passing performance and off-road performance of the anti-roll chassis.

[0017] In addition, an anti-roll mechanism is provided between the axle and the vehicle frame. The anti-roll structure includes a leveling rod, a rocker arm, and a connecting rod assembly connected to the vehicle frame. The rocker arm is connected to both ends of the leveling rod and is respectively arranged on both sides of the vehicle frame. Both ends of the connecting rod assembly are respectively connected to the rocker arm and the axle. And when the vehicle frame tilts, for example, when the anti-roll chassis drives over an uneven road surface, the axle deflects, and the vehicle frame tilts under the action of gravity, that is, one side of the vehicle frame approaches the axle and tilts, and the other side moves away from the axle and tilts. Since the vehicle frame is connected to the leveling rod, and the end of the leveling rod is connected to the rocker arm, when one side of the vehicle frame tilts towards the direction close to the axle, a force towards the axle is applied to the end where the rocker arm is connected to the leveling rod. The other end of the rocker arm is connected to the connecting rod assembly, and the connecting rod assembly is connected to the axle. Thus, a moment that makes the vehicle frame approach the axle is generated at the other end of the rocker arm. This moment is transmitted along the leveling rod to the other end of the leveling rod and acts on the other side of the vehicle frame, making the other side of the vehicle frame that originally has a tendency to tilt away from the axle tilt towards the direction close to the axle, that is, this moment is opposite to the tilting direction of the other side of the vehicle frame. Correspondingly, when the other side of the vehicle frame tilts away from the axle, a moment that makes the vehicle frame move away from the axle is generated at the other end of the rocker arm on this side. This moment is transmitted to one side of the vehicle frame and is opposite to the tilting direction of one side of the vehicle frame, thereby reducing the tilting angle of the vehicle frame and facilitating the realization of the self-adaptive leveling function during the driving of the chassis.

[0018] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent specific embodiments section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. They are used together with the following specific embodiments to explain the embodiments of the present invention, but do not constitute a limitation to the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings. In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of the anti-roll chassis provided by the present invention;

[0021] Figure 2 is Figure 1 an exploded view of the anti-roll chassis shown;

[0022] Figure 3 is a top view of the rear axle part of the anti-roll chassis provided by the present invention.

[0023] DESCRIPTION OF THE REFERENCE NUMERALS

[0024] 1 - Tire; 2 - Traveling speed reducer; 3 - Steering knuckle; 4 - Steering pin shaft; 5 - First oil cylinder pin shaft; 6 - Floating oil cylinder; 7 - Second oil cylinder pin shaft; 8 - Front axle; 9 - Front axle pin shaft; 10 - Frame; 11 - Connecting rod; 12 - Rocker arm; 13 - Stop disc; 14 - Bushing; 15 - Elastic rod; 16 - Bushing support; 17 - Rear axle; 18 - Rear axle pin shaft. Detailed implementation manners

[0025] The following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. It should be understood that the detailed implementation manners described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] In the present invention, unless otherwise stated, the orientation or positional relationship indicated by terms such as "upper, lower, left, right, inner, outer, top, bottom" is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 should not be construed as a limitation to the present invention.

[0027] In addition, terms such as "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0029] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] An aerial work platform is a specialized piece of machinery equipped with a lifting basket capable of lifting personnel and equipment to high altitudes for work. Aerial work platforms can be categorized by their method of movement: self-propelled, mobile, towed, and vehicle-mounted. Self-propelled aerial work platforms primarily utilize two types of chassis: wheeled and tracked. Existing wheeled self-propelled aerial work platforms typically utilize a dedicated heavy-duty chassis as the carrier for the upper working mechanism. This chassis typically includes a frame, front and rear axles, and wheels.

[0031] Currently, self-propelled aerial work platforms primarily utilize integral chassis and front-axle floating chassis. The integral chassis' frame, front axle, and rear axle are integrated, limiting the tires connected to the frame to movement within the same plane and preventing vertical movement. Consequently, integral chassis are generally suitable for indoor and flat road operations, but offer poor off-road performance and escape capabilities, posing a safety hazard of the aerial work platform tipping over when navigating uneven surfaces. The front-axle floating chassis' frame and front axle are articulated via pins, allowing the front axle to swing around the frame within a certain angle range, providing some off-road performance. However, the frame and rear axle remain integral, limiting the chassis' escape capability in challenging road conditions due to swinging solely through the front axle. Furthermore, the integral connection between the frame and rear axle causes the upper vehicle's working mechanism to tilt in sync with the rear axle, resulting in weak anti-roll capabilities on unpaved surfaces. Furthermore, the chassis' inclination angle cannot be adjusted, limiting its ability to operate on slopes.

[0032] The present invention aims to solve the technical problems of poor off-road performance and weak anti-rolling ability of the existing self-propelled aerial work platform chassis, and provides an anti-rolling chassis. Figures 1 - 3As shown, according to an embodiment of the anti-roll chassis of the present invention, the anti-roll chassis includes: a vehicle frame 10, an axle, and an anti-roll mechanism. The axle is respectively hinged to both ends of the vehicle frame 10 through a pin shaft, so that the axle can swing relative to the vehicle frame 10 within a certain angle range. The anti-roll mechanism is respectively connected to the vehicle frame 10 and the axle. Among them, the anti-roll mechanism includes a leveling rod for connecting to the vehicle frame 10, swing arms 12 respectively arranged on both sides of the vehicle frame 10 and connected to the ends of the leveling rod, and a connecting rod assembly. The two ends of the connecting rod assembly are respectively connected to the swing arm 12 and the axle. The connecting rod assembly is configured to apply torques in opposite directions to both ends of the leveling rod through the swing arm 12 when the vehicle frame 10 tilts.

[0033] In the anti-roll chassis provided by the present invention, the axle is hinged to both ends of the vehicle frame 10 through a pin shaft. In this way, the axle can swing relative to the vehicle frame 10 within a certain angle range. When the chassis travels on an uneven road surface, by swinging the axle relative to the vehicle frame 10, the road adaptability of the anti-roll chassis of the present invention is improved. Moreover, in the driving state of the anti-roll chassis, the axles at both ends of the vehicle frame 10, such as the front axle and the rear axle, swing independently of each other. In case of a bad road surface, the front and rear axles can generate opposite swing angles, so that the relative swing angle between the front and rear axles is larger, thus enabling it to calmly face the driving state of the cross axle, and further improving the passing performance and off-road performance of the anti-roll chassis.

[0034] In addition, an anti-roll mechanism is provided between the axle and the vehicle frame 10. The anti-roll structure includes a leveling rod connected to the vehicle frame 10, a rocker arm 12, and a connecting rod assembly. The rocker arm 12 is connected to both ends of the leveling rod and is respectively arranged on both sides of the vehicle frame 10. Both ends of the connecting rod assembly are respectively connected to the rocker arm 12 and the axle. When the anti-roll chassis travels on a flat road surface, under the combined action of the axle, the pin shaft, and the anti-roll mechanism, sufficient supporting force is provided to the vehicle frame 10, so that the angle of the anti-roll chassis relative to the ground remains basically unchanged. When the anti-roll chassis travels through an uneven road surface, the axle deflects, and the vehicle frame 10 tilts under the action of gravity, that is, one side of the vehicle frame 10 approaches the axle and tilts, and the other side is away from the axle and tilts. Since the vehicle frame 10 is connected to the leveling rod, and the end of the leveling rod is connected to the rocker arm 12, when one side of the vehicle frame 10 tilts towards the direction close to the axle, a force towards the axle is applied to the end of the rocker arm 12 connected to the leveling rod. The other end of the rocker arm is connected to the connecting rod assembly, and the connecting rod assembly is connected to the axle. Thus, a moment that makes the vehicle frame 10 approach the axle is generated at the other end of the rocker arm 12. This moment is transmitted along one end of the leveling rod to the other end of the leveling rod and acts on the other side of the vehicle frame 10, making the other side of the vehicle frame 10 that originally has a tendency to tilt away from the axle tilt towards the axle, that is, this moment is opposite to the tilting direction of the other side of the vehicle frame 10. Correspondingly, when the other side of the vehicle frame 10 tilts away from the axle, a moment that makes the vehicle frame 10 away from the axle is generated at the other end of the rocker arm 12 on this side. This moment is transmitted to one side of the vehicle frame 10 and is opposite to the tilting direction of one side of the vehicle frame 10, thereby reducing the tilting angle of the vehicle frame 10, which is beneficial to realizing the adaptive leveling function during the driving process of the anti-roll chassis.

[0035] According to an embodiment of the anti-roll chassis of the present invention, referring to Figures 1 - 3 as shown, the leveling rod includes an elastic rod 15 connected to the vehicle frame 10. Both ends of the elastic rod 15 are respectively connected to the rocker arm 12. The elastic rod 15 has elasticity. When opposite torques are applied to both ends of the elastic rod 15, elastic deformation occurs and torsion is generated. When this torsional torque is transmitted from one end of the elastic rod 15 to the other end, a torque opposite to the tilting direction of the vehicle frame 10 located at the other end of the elastic rod 15 is generated, thereby reducing the tilting angle of the vehicle frame 10, and further realizing the adaptive leveling function during the driving process of the anti-roll chassis. And compared with a rigid rod, since the elastic rod 15 has elasticity, the service life of the elastic rod 15 in the torsional working state can be extended.

[0036] Optionally, the elastic rod 15 can be a torsion spring rod.

[0037] According to an embodiment of the anti-roll chassis of the present invention, referring to Figure 1 and Figure 2 as shown, the elastic rod 15 is in transmission connection with the rocker arm 12, so that the rocker arm 12 can transmit torque to the elastic rod 15. Further, in combination with Figure 2As shown, splines are formed on the outer peripheral surface of the end of the elastic rod 15. The elastic rod 15 and the rocker arm 12 are connected by spline fit, which facilitates the installation and disassembly of the elastic rod 15 and the rocker arm 12 and is beneficial to the maintenance of the anti-tipping mechanism. Of course, in the present invention, the elastic rod 15 and the rocker arm 12 are not limited to spline fit connection. For example, the transmission connection can be achieved by setting shear pins between the elastic rod 15 and the rocker arm 12, or the elastic rod 15 and the rocker arm can also be connected by a profile connection to achieve torque transmission.

[0038] In addition, according to another embodiment of the anti-tipping chassis of the present invention, the elastic rod 15 and the rocker arm 12 can be of an integral structure. For example, the elastic rod 15 and the rocker arm 12 form an integral elastic special-shaped connecting rod structure, and this elastic special-shaped connecting rod structure is respectively connected to the vehicle frame 10 and the connecting rod assembly.

[0039] According to an embodiment of the anti-tipping chassis of the present invention, referring to Figure 2 As shown, the anti-tipping mechanism of the present invention further includes a bushing 14 sleeved on the leveling rod, and the bushing 14 is installed in the bushing support 16 of the vehicle frame 10. In this way, the bushing 14 is installed in the bushing support 16, and the leveling rod is rotatably connected inside the bushing 14, so that the bushing 14 can limit the movement of the leveling rod along the radial direction parallel to the bushing 14, which is beneficial to maintaining the stability of the leveling rod.

[0040] Furthermore, the bushing 14 is a rubber bushing, and the rubber bushing has a certain elasticity. When the elastic rod 15 is subjected to a moment, there is a certain frictional force between the elastic rod 15 and the rubber bushing. In this way, the rubber bushing can absorb and suppress the energy generated by the deformation and torsion of the elastic rod 15, thereby improving the comfort and safety of the anti-tipping chassis of the present invention during driving.

[0041] Furthermore, referring to Figure 2 As shown, the anti-tipping mechanism of the present invention further includes a stop disk 13 sleeved on the leveling rod. The stop disk 13 is fixedly connected to the leveling rod and is installed on the side of the bushing 14 away from the vehicle frame 10. In this way, the stop disks 13 on both sides of the vehicle frame 10 can limit the movement of the leveling rod along its axial direction, which is beneficial to maintaining the stability of the leveling rod.

[0042] Optionally, the stop disk 13 is threadedly connected to the leveling rod to fix the stop disk 13 on the leveling rod, thereby restricting the movement of the leveling rod along its axial direction. Of course, the stop disk 13 can also be fixed to the leveling rod by means such as bonding and key connection.

[0043] Furthermore, an installation notch is formed on the outer peripheral surface of the stop disk 13 to facilitate the installation tool to clamp the stop disk 13 and install the stop disk 13 onto the leveling rod.

[0044] According to an embodiment of the anti-tipping chassis of the present invention, see Figures 1 - 3As shown, the leveling rod is arranged through both sides of the vehicle frame 10. The bushing support 16 is arranged on the side wall of the vehicle frame 10. The bushing 14 is sleeved on the leveling rod and installed in the bushing support 16. The stop disc 13 is sleeved on the leveling rod and installed on the side away from the vehicle frame 10 of the bushing 14.

[0045] According to other embodiments of the anti-roll chassis of the present invention, the bushing support 16 is not arranged on both side walls of the vehicle frame 10. The bushing support 16 can be arranged above, below, in front of or behind the vehicle frame 10 and other positions. Any similar installation arrangement belongs to the protection scope of the present invention.

[0046] Refer to Figures 1 - 3 As shown, in an embodiment of the anti-roll chassis provided by the present invention, the connecting rod assembly includes a connecting rod 11 and joint components respectively arranged at both ends of the connecting rod 11. The connecting rod 11 is respectively connected with the rocker arm 12 and the axle through the joint components. Specifically, joint components are respectively connected to both ends of the connecting rod 11. One of the joint components is connected to the end of the rocker arm 12 away from the leveling rod, and the other joint component is connected to the axle.

[0047] According to an embodiment of the present invention, in combination with Figure 2 As shown, the joint component includes ball joint connectors arranged at both ends of the connecting rod 11. The connecting rod 11 is respectively connected with the rocker arm 12 and the axle through the ball joint connectors. Since the ball joint connector has multiple degrees of freedom, when the connecting rod 11 applies a moment to the rocker arm 12 through the ball joint connector, additional bending moments can be avoided. At the same time, when the axle swings, the movement posture of the connecting rod 11 is partially restricted by the ball joint connector.

[0048] Optionally, the length of the connecting rod 11 can be a fixed length.

[0049] Or, according to a preferred embodiment of the anti-roll chassis of the present invention, the length of the connecting rod 11 is adjustable. In this way, the connecting rod 11 can adjust its length according to the installation states of various structures and components of the anti-roll chassis, such as the vehicle frame 10, the rocker arm 12, and the axle, so as to compensate for the errors caused by structure manufacturing and assembly. Of course, there are various structures for realizing the adjustable length of the connecting rod 11, including but not limited to that the connecting rod 11 is a telescopic rod, or the connecting rod 11 and the joint component are connected by threads, and the length of the connecting rod between the two joint components is adjusted by relatively rotating the connecting rod and the joint component.

[0050] Furthermore, refer to Figure 1 and Figure 2As shown in the figure, the anti-tipping chassis of the present invention further includes a floating oil cylinder 6. The floating oil cylinder 6 and the anti-tipping mechanism are oppositely arranged at both ends of the vehicle frame 10. The axle includes a front axle 8 and a rear axle 17 respectively hinged to both ends of the vehicle frame 10. The floating oil cylinder 6 is respectively arranged on both sides of the vehicle frame 10 and one end is connected to the vehicle frame 10, and the other end is connected to one of the front axle 8 and the rear axle 17. The other end of the connecting rod assembly is connected to the other of the front axle 8 and the rear axle 17.

[0051] Specifically, referring to Figure 2 As shown in the figure, the pin shafts include a front axle pin shaft 9 and a rear axle pin shaft 18. The front axle pin shaft 9 and the rear axle pin shaft 18 are respectively arranged at both ends of the vehicle frame 10 along the extending direction parallel to the vehicle frame 10. The axes of the front axle pin shaft 9 and the rear axle pin shaft 18 respectively coincide with the center line of the vehicle frame 10, that is, the front axle pin shaft 9 and the rear axle pin shaft 18 are respectively arranged at the middle positions of the two ends of the vehicle frame 10 to facilitate the swinging of the front axle 8 and the rear axle 17. The front axle 8 is hinged to the front end of the vehicle frame 10 through the front axle pin shaft 9, and the rear axle 17 is hinged to the rear end of the vehicle frame 10 through the rear axle pin shaft 18. The floating oil cylinder 6 can be arranged at the front or rear of the vehicle frame 10, and the anti-tipping mechanism can be correspondingly arranged at the rear or front of the vehicle frame 10. For example, the floating oil cylinder 6 is arranged at the front of the vehicle frame 10, and the anti-tipping mechanism is arranged at the rear of the vehicle frame 10. Specifically, one end of the two floating oil cylinders 6 is respectively hinged to both sides of the front of the vehicle frame 10 through the first oil cylinder pin shaft 5, and the other end of the two floating oil cylinders 6 is respectively hinged to the front axle 8 through the second oil cylinder pin shaft 7. The leveling rod of the anti-tipping mechanism is connected to the rear of the vehicle frame 10. The two rocker arms 12 of the anti-tipping mechanism are arranged on both sides of the vehicle frame 10 and are respectively connected to both ends of the leveling rod. The rocker arm 12 is connected to the rear axle 17 through the connecting rod assembly. Of course, the floating oil cylinder 6 can also be arranged at the rear of the vehicle frame 10, and the anti-tipping mechanism is arranged at the front of the vehicle frame 10, which will not be elaborated here.

[0052] The floating oil cylinders 6 are respectively arranged on both sides of the vehicle frame 10. When the anti-tipping chassis is in the driving state, the floating oil cylinders 6 are in the free state, that is, they extend or contract freely with the movement state of the axle and will not have a restrictive effect on the movement state of the axle. When the anti-tipping chassis is in the working state, the floating oil cylinders 6 are in the working state. By controlling the extension or compression of the floating oil cylinders 6, a supporting force is provided to the vehicle frame 10, and the inclination angle of the vehicle frame 10 is adjusted. Since the axle and the vehicle frame 10 are hinged, the axle can swing relative to the vehicle frame 10. Therefore, the floating oil cylinders 6 can adjust the inclination angle of the vehicle frame 10 within the swing angle range of the axle. When the inclination angle of the vehicle frame 10 reaches a predetermined angle, for example, after the vehicle frame 10 is leveled, the floating oil cylinders 6 are in the locked state to maintain the stability of the vehicle frame 10. In this way, when the anti-tipping chassis is operating on a slope, the inclination angle of the vehicle frame 10 can be adjusted through the floating oil cylinders 6, and the tipping moment generated by the center of gravity offset when the vehicle frame 10 is tilted can be reduced, improving the operation performance and the overall stability of the machine.

[0053] Therefore, in the anti-tipping chassis provided by the present invention, during the driving process of the anti-tipping chassis, the anti-tipping mechanism can apply a moment opposite to the tilting direction of the vehicle frame 10 to the vehicle frame 10 according to the tilting condition of the vehicle frame 10, so as to achieve self-adaptive leveling of the vehicle frame 10. When the anti-tipping chassis is in the working state, the inclination angle of the vehicle frame 10 is adjusted by the floating oil cylinder to ensure that the vehicle frame 10 operates in a leveled state. Of course, during the process of adjusting the inclination angle of the vehicle frame 10 by the above-mentioned floating oil cylinder 6, the anti-tipping mechanism will also level the inclination angle of the vehicle frame 10, further realizing the leveling function of the vehicle frame 10 during operation.

[0054] In addition, as shown in Figure 1 and Figure 2 , according to an embodiment of the anti-tipping chassis of the present invention, the anti-tipping chassis further includes a knuckle 3 respectively hinged to the end of the axle, a traveling speed reducer 2 installed on the knuckle 3, and a tire 1 drivingly connected to the traveling speed reducer 2. The knuckle 3 is hinged to the end of the axle through a steering pin shaft 4, so that the knuckle can rotate relative to the axle around the steering pin shaft 4 to change the driving direction of the anti-tipping chassis during the driving process of the anti-tipping chassis.

[0055] On this basis, the present invention further provides an aerial work platform, which includes an upper vehicle working mechanism and the aforementioned anti-tipping chassis, and the upper vehicle working mechanism is installed on the anti-tipping chassis.

[0056] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, including any suitable combination of each specific technical feature. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods. But these simple modifications and combinations should also be regarded as the content disclosed by the present invention and fall within the protection scope of the present invention.

Claims

1. An anti-tipping chassis, characterized in that, Comprising: A vehicle frame (10), an axle articulated to the end of the vehicle frame (10) by a pin shaft, and an anti-roll mechanism, wherein the anti-roll mechanism is respectively connected to the vehicle frame (10) and the axle; Wherein, the anti-roll mechanism includes a leveling rod for connecting with the vehicle frame (10), rocker arms (12) respectively arranged on both sides of the vehicle frame (10) and connected to the ends of the leveling rod, and a connecting rod assembly. The two ends of the connecting rod assembly are respectively connected to the rocker arm (12) and the axle. The connecting rod assembly is configured to apply torques with opposite directions to both ends of the leveling rod through the rocker arm (12) when the vehicle frame (10) tilts.

2. The anti-tipping chassis according to claim 1, wherein The leveling rod includes an elastic rod (15) connected to the vehicle frame (10), and the two ends of the elastic rod (15) are respectively connected with the rocker arms (12).

3. The anti-tipping chassis according to claim 1, wherein The anti-roll mechanism further includes a bushing (14) sleeved on the leveling rod, and the bushing (14) is installed in a bushing support (16) of the vehicle frame (10).

4. The anti-tipping chassis according to claim 3, characterized in that The anti-roll mechanism further includes a stop disc (13) sleeved on the leveling rod. The stop disc (13) is fixedly connected to the leveling rod and installed on the side of the bushing (14) away from the vehicle frame (10).

5. The anti-tilting chassis according to claim 4, characterized in that, The leveling rod penetrates through both sides of the vehicle frame (10). The bushing support (16) is arranged on the side wall of the vehicle frame (10). The bushing (14) is sleeved on the leveling rod and installed in the bushing support (16). The stop disc (13) is sleeved on the leveling rod and installed on the side of the bushing (14) away from the vehicle frame (10).

6. The anti-tipping chassis according to claim 1, wherein The connecting rod assembly includes a connecting rod (11) and joint components respectively arranged at both ends of the connecting rod (11). The connecting rod (11) is respectively connected to the rocker arm (12) and the axle through the joint components.

7. The anti-tipping chassis according to claim 6, wherein The joint components include ball joint connectors arranged at both ends of the connecting rod (11). The connecting rod (11) is respectively connected to the rocker arm (12) and the axle through the ball joint connectors.

8. The anti-tipping chassis according to claim 6, characterized in that The length of the connecting rod (11) can be adjusted.

9. The anti-tipping chassis according to claim 1, wherein The anti-roll chassis further includes a floating oil cylinder (6). The floating oil cylinder (6) and the anti-roll mechanism are oppositely arranged at both ends of the vehicle frame (10). The axle includes a front axle (8) and a rear axle (17) respectively articulated to both ends of the vehicle frame (10). The floating oil cylinder (6) is respectively arranged on both sides of the vehicle frame (10), one end is connected to the vehicle frame (10), and the other end is connected to one of the front axle (8) and the rear axle (17). The other end of the connecting rod assembly is connected to the other one of the front axle (8) and the rear axle (17).

10. The anti-tipping chassis according to any one of claims 1-9, characterized in that, The anti-roll chassis further includes steering knuckles (3) respectively articulated to the ends of the axle, a traveling speed reducer (2) installed on the steering knuckles (3), and tires (1) drivingly connected to the traveling speed reducer (2).

11. An aerial work platform, characterized in that, It includes a working mechanism on the upper vehicle and an anti-tipping chassis according to any one of claims 1-10, and the working mechanism on the upper vehicle is installed on the anti-tipping chassis.

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