Mine explosion-proof electric climbing operation vehicle

Abstract

The application discloses a mine-used explosion-proof electric climbing operation vehicle, which comprises a whole rigid vehicle chassis, a power system, a hydraulic system, a scissor type lifting mechanism, an operation platform and a vehicle body stabilizing system are arranged on the whole rigid vehicle chassis. The power system comprises a driving motor controlled by an electric control system, which is in transmission connection with a vehicle axle and a traveling wheel to realize electric driving traveling. The hydraulic system comprises a hydraulic pump station and an executing element, which drives a supporting leg to be leveled, drives the scissor type mechanism to be lifted and lowered and drives the operation platform to be telescopically rotated. The scissor type lifting mechanism is arranged between the vehicle chassis and the operation platform, and drives the platform to be stably lifted. The vehicle body stabilizing system comprises four supporting legs connected with the chassis, which is used for supporting and stabilizing the vehicle body during operation. The vehicle adopts explosion-proof electric driving, replaces diesel power, has the advantages of low noise, low pollution and high efficiency. Through cooperation of the scissor type lifting mechanism and the telescopic rotary platform, the operation stability and range are improved, and the vehicle is suitable for climbing, overhauling and installing in limited space such as a mine tunnel.

Description

Technical Field

[0001] This invention belongs to, but is not limited to, the technical field of special vehicle aerial work equipment, and particularly relates to a mine explosion-proof electric aerial work vehicle. Background Technology

[0002] In mine roadways, tunnels, and various confined spaces, high-altitude maintenance and installation operations place extremely stringent requirements on the compactness, operating range, and stability of equipment. These working environments are typically characterized by uneven floors, narrow spaces, and irregular shapes. High-altitude work vehicles must not only provide sufficient lateral and circumferential coverage within a limited width, but also ensure absolute safety and stability under off-center loading conditions.

[0003] Currently, most aerial work platforms employ outriggers arranged independently at the front, rear, or four corners for stability. However, on uneven floors in tunnels, the ground reaction forces of these independent outriggers are difficult to coordinate, often requiring repeated leveling. Furthermore, the outriggers have poor adaptability to the ground, sometimes resulting in loose connections or insufficient load-bearing capacity in individual outriggers, causing the entire vehicle to tilt and sway, severely compromising safety during high-altitude operations. Even with the addition of ball-joint base plates to some outriggers, the problems of weak overall rigidity and poor anti-overturning ability inherent in independent support systems cannot be fundamentally solved.

[0004] In terms of lifting mechanisms, scissor lifts are widely used due to their compact structure and large vertical stroke. However, existing scissor lifts rely primarily on hydraulic locks or balance valves in the lifting cylinders to maintain their position after reaching the working height. Hydraulic components are susceptible to internal leakage and sudden pipe bursts; failure of these components can lead to a slow descent or even a sudden drop of the platform. The few designs that incorporate mechanical limit devices are mostly end pins or flap structures, limiting their use to specific heights and failing to adapt to varying working height requirements. Furthermore, their operation is cumbersome, making it difficult to balance reliable mechanical locking with height adaptability.

[0005] At the platform level, some aerial work platforms are equipped with telescopic or manually slewing platforms to expand the working range. However, in narrow environments such as tunnels, independently installed telescopic booms often only extend in one direction and cannot achieve circumferential coverage. If a slewing function is added, the slewing bearing is often located at the bottom or top of the scissor lift, which not only increases the overall height of the machine but also causes the platform's tail to interfere with the tunnel wall during rotation, restricting the passage and operational flexibility in narrow spaces. More importantly, when the telescopic platform is fully extended and loaded, or when it is rotated to its limit angle, the lifting mechanism is subjected to significant off-center torque, which can easily cause torsional deformation of the scissor lift and jamming of the lifting mechanism. Conventional hydraulic limit switches or electronic control detection are slow to respond to instability under non-vertical loads on such mechanical structures, and cannot fundamentally guarantee safety.

[0006] Furthermore, the aforementioned subsystems typically operate independently in existing designs, lacking mechanistic coordination. For example, the vehicle stability system only provides basic support and does not participate in anti-tipping measures for platform eccentric loading; the lifting mechanism lacks reliable mechanical locking and cannot share the additional bending moments caused by rotation and extension; and the multi-degree-of-freedom adjustment of the work platform fails to match the support stiffness. This fragmented design makes "balancing wide-range flexible operation and high stability within a compact vehicle body" a long-standing technical contradiction.

[0007] Therefore, how to achieve adaptive and stable support for the vehicle body, reliable mechanical locking within the lifting height, and the platform's rotation, extension, and anti-eccentric load capabilities through collaborative design between mechanisms, and truly solve the problem of working at heights in confined spaces in mine roadways while ensuring a narrow vehicle body, long working distance, and stable standing, is a technical direction that urgently needs to be broken through. Summary of the Invention

[0008] This invention provides an aerial work platform vehicle, aiming to solve the problems of limited operating range, inconvenient safety locking, and poor adaptability to uneven terrain in existing aerial work platform vehicles. The aerial work platform vehicle includes a vehicle body, on which a hydraulic pump station, a lifting mechanism, a vehicle stability mechanism, and a working platform mounted on the lifting mechanism are installed.

[0009] The hydraulic pump station is located on the upper part of the vehicle body and is used to supply hydraulic oil of different pressures to all hydraulic drive mechanisms of the vehicle to realize actions such as outrigger extension and retraction, lifting mechanism raising and lowering, and work platform rotation.

[0010] The working platform is a multi-stage structure that is rotatable and retractable. Specifically, the working platform includes a primary platform, a secondary platform, and a tertiary platform. Guide rails are welded to the tertiary platform, which is bolted to the rotary drive. A flange for connection to the rotary drive and railings are welded to the secondary platform, with an anti-impact mechanism mounted on the railings. Through holes are opened on the side of the secondary platform, which are bolted to a telescopic slide rail; the secondary platform is also bolted to the rotary drive. Railings are welded to the primary platform, which also have through holes on their side, and are bolted to the telescopic slide rail. Thus, the rotary drive allows the secondary and primary platforms to rotate relative to the tertiary platform and to stop at any angle; the telescopic slide rails allow the primary platform to extend or retract relative to the secondary platform, flexibly adjusting the working range of the platform. The anti-impact mechanism provides protection when raised or extended to its limit position.

[0011] The lifting mechanism is a scissor lift structure, located between the vehicle body and the work platform. The lifting mechanism consists of multiple scissor arms connected by pins to form a linkage mechanism. An upper ear plate is welded to the upper end of the linkage mechanism, and a lower ear plate is welded to the lower end. A lifting cylinder is installed between the upper and lower ear plates, and the extension and retraction of the lifting cylinder controls the lifting and lowering of the entire lifting mechanism. The lower end of the lifting mechanism has a pin and a slider. One side of the pin is fixedly hinged to the ear plate on the vehicle body, and the other side of the slider engages with a slide rail on the vehicle body. The upper end of the lifting mechanism has two sets of sliders, each installed inside a guide rail welded to the bottom of the three-stage platform, allowing the work platform to rise and fall smoothly and vertically during lifting. A scissor lift mechanical limiter is installed at the middle pin of the linkage mechanism composed of the scissor arms and the pin. After lifting to the predetermined working height, the operator can lock the scissor lift mechanical limiter, thereby restricting the relative movement of the scissor arms and the pin, achieving mechanical locking of the lifting mechanism, preventing accidental descent, and improving operational safety.

[0012] The vehicle stability mechanism includes a front cylinder outrigger connector, a rear cylinder outrigger connector, and cylinder outriggers with universal base plates. Both the front and rear cylinder outrigger connectors are connected to the vehicle's main beam, and each connector has a cylinder outrigger with a universal base plate installed underneath it. The two front cylinder outrigger connectors are located on either side of the vehicle, while the rear cylinder outrigger connector is a single, integral structure that connects both cylinder outriggers with universal base plates. When the outriggers extend, the universal base plates can adaptively tilt to the ground, stably supporting and leveling the vehicle body to form a rigid, stable platform.

[0013] In combination with the above technical solutions and the technical problems solved, the significant advancements and unexpected technical effects of the technical solution to be protected by this invention are as follows:

[0014] The centralized hydraulic pump station simplifies the hydraulic circuit and enables coordinated control of outriggers, lifting, platform rotation, and extension. The multi-stage rotatable and extendable work platform greatly expands the lateral and circumferential working range, adapting to complex tunnel conditions. The upper slider of the lifting mechanism works with the guide rail to ensure smooth and stable lifting, while the scissor lift mechanical limit in the middle provides reliable mechanical locking, effectively preventing accidental platform descent. The vehicle stability mechanism adopts a front-to-rear arrangement with an integral rear connecting seat, combined with the universal base plate outriggers, enhancing the adaptive support capability and overall stability on uneven ground, thus providing safe and efficient technical support for high-altitude maintenance and installation operations.

[0015] (1) The technical solution of the present invention fills the technical gap in the industry at home and abroad: The present invention fills the gap in the field of explosion-proof electric aerial work vehicle for mining at home and abroad, and for the first time integrates the scissor lift structure with the 360° full rotation work platform and long-distance horizontal extension function.

[0016] (2) The technical solution of the present invention solves the technical problem that people have been eager to solve but have never been able to achieve: The present invention solves the problem of poor flexibility and short extension distance of traditional aerial work vehicles using scissor lifting mechanism by integrating the scissor lifting structure with the extendable rotary work platform. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of an aerial work platform vehicle.

[0018] Figure 2 This is a schematic diagram of the external structure of a rotary extension work platform.

[0019] Figure 3 This is a schematic diagram of the external structure of the lifting mechanism.

[0020] Figure 4 A schematic diagram showing the installation location and structure of the vehicle stability control device.

[0021] Figure 5 This describes the stress distribution during the operation of the lifting mechanism.

[0022] In the diagram: 10 Vehicle body; 20 Hydraulic pump station; 30 Extended rotary working platform; 40 Lifting mechanism; 50 Vehicle stability device; 31 Guardrail; 32 Third-level platform; 33 Telescopic slide rail; 34 Second-level platform; 35 Guide rail; 36 First-level platform; 37 Rotary drive; 38 Anti-overrun protection device; 41 Sliding block; 42 Scissor arm; 43 Scissor mechanical limit; 44 Lifting cylinder; 45 Lower ear plate; 46 Pin shaft; 47 Upper ear plate; 51 Cylinder outrigger with universal base plate; 52 Front cylinder outrigger connecting seat; 53 Rear cylinder outrigger connecting seat. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] like Figures 1 to 4 The aerial work platform vehicle shown includes a hydraulic pump station 20, a lifting mechanism 40, a vehicle stability mechanism 50, and a work platform 30 mounted on the lifting mechanism 40, all mounted on the vehicle body 10. Specifically, the upper part of the vehicle body 10 is equipped with a hydraulic pump station 20, which supplies hydraulic oil of different pressures to all hydraulic drive mechanisms of the vehicle to achieve functions such as extending the stabilizer outriggers, raising and lowering the lifting mechanism, and rotating the work platform.

[0025] Operating platform such as Figure 2As shown, the platform is connected to the lifting mechanism via guide rail 35. Guide rail 35 is welded onto the third-level platform 36, along with a flange for connection to the rotary drive 37 and structural reinforcement. The third-level platform 36 is bolted to the rotary drive 37. A flange and railing are welded onto the second-level platform 34 for connection to the rotary drive 37. An anti-collision mechanism 38 is mounted on the railing. Through holes are opened on the side of the second-level platform 34, which are bolted to the telescopic slide rail 33. The second-level platform 34 is bolted to the rotary drive 37. Railings are welded onto the first-level platform 32, which also has through holes on its side, bolted to the telescopic slide rail 33. The work platform slide rails can extend and retract, and the rotary drive allows the work platform to rotate and be fixed at any angle.

[0026] Lifting mechanisms such as Figure 3 As shown, its lower end is equipped with a slider and a pin, which are connected to the ear plates and slide rails respectively set on the vehicle body 10. Its upper end has two sets of sliders, installed on the inner side of the guide rail 35 welded on the three-stage platform 36. The lifting mechanism consists of multiple scissor arms 42, each connected by a pin 46. An upper ear plate 47 is welded to the upper end of the linkage mechanism composed of the scissor arms and pins, and a lower ear plate 45 is welded to the lower end. A lifting cylinder 44 is installed between the upper ear plate 47 and the lower ear plate 45. The extension and retraction of the lifting cylinder control the rise and fall of the lifting mechanism. A scissor mechanical limiter 43 is set on the middle pin of the linkage mechanism composed of the scissor arms and pins. After the scissor arms are raised to the working height, the scissor mechanical limiter 43 restricts the freedom of the scissor arms and pins.

[0027] The vehicle stability device and its arrangement on the vehicle body 10 are as follows: Figure 4 As shown. The vehicle stability device is located behind the front and rear wheels of the aerial work platform. The front cylinder outrigger connecting seat 52 and the rear cylinder outrigger connecting seat 53 are connected to the main beam of the vehicle. The cylinder outriggers 51 with universal base plates are installed below each connecting seat. The two front cylinder outrigger connecting seats 51 are respectively arranged on both sides of the vehicle. The rear cylinder outrigger connecting seat 53 is a whole, connecting the two cylinder outriggers 51 with universal base plates.

[0028] The working principle of this aerial work platform vehicle is as follows: Before operation, the vehicle travels to the designated work position, and the hydraulic pump station 20 starts, outputting hydraulic oil at different pressures. First, the vehicle stability mechanism 50 is activated: the hydraulic pump station 20 supplies oil to the four cylinder outriggers 51, and the cylinder outriggers 51 with universal base plates extend and touch the ground. Through the universal base plates adapting to the ground, the vehicle body 10 is lifted and leveled, forming a rigid and stable support for the entire vehicle. The two front cylinder outriggers 51 are respectively mounted on the main beams on both sides of the vehicle through the front cylinder outrigger connecting seats 52, while the rear integral rear cylinder outrigger connecting seat 53 simultaneously drives the two cylinder outriggers 51, jointly ensuring the stability of the vehicle body.

[0029] After the vehicle body is stabilized, the hydraulic pump station 20 supplies oil to the lifting cylinder 44 of the lifting mechanism 40. The lifting cylinder 44 is installed between the upper ear plate 47 at the upper end and the lower ear plate 45 at the lower end of the scissor arm 42 assembly. When the pressurized oil pushes the cylinder to extend, it drives the linkage mechanism composed of multiple scissor arms 42 and pins 46 to unfold. The pin 46 on one side of the lower end of the lifting mechanism 40 is fixedly hinged to the ear plate of the vehicle body 10, and the slider on the other side moves along the slide rail of the vehicle body 10; the two sets of sliders at the upper end slide in the guide rail 35 at the bottom of the three-stage platform 36 to ensure that the working platform 30 rises smoothly and vertically. During the lifting process, the working platform 30 remains horizontal. After reaching the predetermined working height, the operator locks the scissor mechanical limit 43 at the middle pin 46 to restrict the relative movement of the scissor arms 42 and the pin 46, thus mechanically locking the lifting mechanism 40 and preventing accidental descent.

[0030] Subsequently, the working platform 30 can be adjusted in posture to expand the working range. The hydraulic pump station 20 supplies oil to the rotary drive 37. Since the tertiary platform 36 is fixedly connected to the rotary drive 37, the secondary platform 34 is also connected to the rotary drive 37. When the rotary drive 37 is working, it drives the secondary platform 34 and its upper primary platform 32 to rotate relative to the tertiary platform 36, allowing it to stop and remain fixed at any angle. The primary platform 32 and the secondary platform 34 are connected by a telescopic slide rail 33. The primary platform 32 can extend or retract along the telescopic slide rail 33, extending the platform. An anti-overrun mechanism 38 is installed on the top rail of the working platform 30, providing protection when lifted or extended to its limit position.

[0031] After the operation is completed, the primary platform 32 is retracted, and the rotary drive 37 rotates the working platform 30 back to its initial position. Then, the scissor lift mechanical limit 43 is released. The hydraulic pump station 20 controls the lifting cylinder 44 to retract, the scissor lift arm 42 folds, and the working platform 30 is smoothly lowered and reset. Finally, the outriggers 51 of the vehicle stability mechanism 50 retract, the omnidirectional base plate is lifted off the ground, the vehicle returns to driving status, and the entire aerial work process is completed.

[0032] The overturning resistance and ultimate load-bearing capacity of aerial work platforms directly affect operational safety. The stability of the lifting mechanism is the decisive factor in the operational stability of the aerial work platform, therefore, it is necessary to verify the aerial work platform, especially the lifting mechanism. The vehicle body is simplified to a rigid base plate, and the work platform is simplified to a three-stage platform bearing its own weight and 1.5 times the rated load. The stress distribution of the lifting mechanism when rising from the lowest position is analyzed. Figure 5 As shown, the stress distribution is uniform, and the maximum stress is 233 MPa.

[0033] When performing high-altitude operations, the aerial work platform vehicle of this invention first drives the vehicle body 10 to the predetermined work position and adjusts the vehicle's parking position according to the ground conditions. After the vehicle comes to a complete stop, the hydraulic pump station 20 is activated, which supplies hydraulic oil at the required pressure to the hydraulic drive components in the vehicle stability mechanism 50, the lifting mechanism 40, and the work platform 30, thereby sequentially completing operations such as vehicle stabilization, platform lifting, and work platform attitude adjustment.

[0034] At the start of the operation, the vehicle stability mechanism 50 is activated first. The hydraulic pump station 20 supplies pressurized oil to the hydraulic cylinder outriggers 51 located at the front and rear of the vehicle body 10, causing each outrigger 51 to extend downwards until its lower end, the universal base plate, contacts the ground. The universal base plate can swing accordingly based on the ground's inclination, maintaining stable contact between the outriggers and the ground. As the hydraulic cylinder outriggers 51 continue to extend, the vehicle body 10 is gradually supported and leveled. The two hydraulic cylinder outriggers 51 located at the front of the vehicle are connected to the main beams on both sides of the vehicle via front hydraulic cylinder outrigger connecting seats 52, and the two hydraulic cylinder outriggers 51 located at the rear of the vehicle are connected to the main beams via an integral rear hydraulic cylinder outrigger connecting seat 53. These four support positions together form a stable support structure to reduce vehicle swaying during lifting and high-altitude operations.

[0035] After the vehicle body 10 is stabilized, the hydraulic pump station 20 supplies oil to the lifting cylinder 44 in the lifting mechanism 40. The lifting cylinder 44 is installed between the upper ear plate 47 and the lower ear plate 45. When the lifting cylinder 44 extends, it applies a driving force to the scissor linkage mechanism composed of multiple scissor arms 42 and pins 46, causing the hinged scissor arms 42 to gradually unfold. The lower end of the lifting mechanism 40 is connected to the ear plates and slide rails on the vehicle body 10 through pins and sliders. During the unfolding of the scissor arms 42, the corresponding sliders move along the slide rails on the vehicle body 10; the two sets of sliders at the upper end of the lifting mechanism 40 slide along the guide rails 35 set at the bottom of the three-stage platform 36, so that the scissor mechanism can unfold according to the predetermined motion trajectory and drive the working platform 30 to move smoothly upward.

[0036] Once the work platform 30 rises to the predetermined height, the scissor arm 42 is mechanically locked by the scissor mechanical limiter 43 located at the central pin 46 of the scissor mechanism. The scissor mechanical limiter 43 restricts the degree of freedom of movement between the scissor arm 42 and the corresponding pin 46, keeping the deployed scissor structure in its current working state. Even when the hydraulic system experiences pressure changes, it can still provide auxiliary mechanical support to the lifting mechanism 40, improving stability during high-altitude operations.

[0037] After lifting is complete, the work platform 30 can be further adjusted according to the specific work position. The hydraulic pump station 20 drives the rotary drive 37. Since the third-level platform 36 is connected to the rotary drive 37, and the second-level platform 34 is also connected to the rotary drive 37, the rotary drive 37 can drive the second-level platform 34 and the first-level platform 32 mounted on it to rotate relative to the third-level platform 36, allowing the work platform 30 to be adjusted to the corresponding angle according to the work orientation and kept fixed at the required angle position. At the same time, the first-level platform 32 and the second-level platform 34 are connected by a telescopic slide rail 33. The first-level platform 32 can extend outward or retract inward along the telescopic slide rail 33 to change the effective working range of the work platform 30. The anti-collision mechanism 38 installed on the railing of the second-level platform 34 can protect against obstacles above or extreme positions during the lifting, rotation, or extension of the platform.

[0038] After the operation is completed, the system is reset in the reverse order of the operation deployment. First, the primary platform 32 is retracted along the telescopic slide rail 33. Then, the work platform 30 is rotated to its initial position via the rotary drive 37, and the scissor lift mechanical limit 43 is released. The hydraulic pump station 20 controls the retraction of the lifting cylinder 44, causing the multiple scissor lift arms 42 to gradually fold, and the work platform 30 smoothly descends to its initial position along with the lifting mechanism 40. Finally, the outriggers 51 of each cylinder are retracted, causing the universal base plate to detach from the ground, and the vehicle body 10 is once again supported by the vehicle wheels. The aerial work platform vehicle returns to normal driving status, thus completing a full aerial work cycle.

[0039] This invention uses a hydraulic pump station 20 as the hydraulic power source for the entire vehicle, providing centralized oil supply to the hydraulic drive components such as the vehicle stability mechanism 50, the lifting mechanism 40, and the rotation of the work platform 30. This allows the actuators, which originally performed support, lifting, and attitude adjustment functions separately, to operate in the same hydraulic power system according to the work sequence. Compared with a structure where each mechanism has its own independent power source, this reduces redundant power unit configurations, makes the overall vehicle hydraulic drive structure more centralized, and facilitates continuous operation in the sequence of "vehicle stabilization—platform lifting—platform adjustment—platform lowering—outrigger retraction," thereby improving the coordination between the actuators.

[0040] The work platform 30 of this invention adopts a multi-level platform structure consisting of a primary platform 32, a secondary platform 34, and a tertiary platform 36, combined with a telescopic slide rail 33 and a rotary drive 37. This allows the work platform to extend and retract horizontally and rotate around its axis of rotation even after vertical lifting. The primary platform 32 can extend and retract relative to the secondary platform 34, and the secondary platform 34 can be angled relative to the tertiary platform 36. This allows operators to approach work positions at different directions and horizontal distances without frequently moving the entire vehicle, thanks to the platform's extension, retraction, and rotation. Especially in work environments with limited space, difficult vehicle turning, or work points distributed to the side of the vehicle, such as alleyways and factories, this structure effectively expands the circumferential and lateral coverage of the aerial work platform vehicle, improving its adaptability to complex work positions.

[0041] This invention addresses the challenge of maintaining smooth movement and safe operation when using scissor lift mechanisms at higher positions. A slider is installed at the upper end of the lifting mechanism 40, and this slider slides into contact with guide rails 35 on the three-stage platform 36. During the unfolding and folding of the scissor arm 42, the slider moves along the guide rails 35 along a defined trajectory. This sliding contact releases and constrains the horizontal displacement generated by the scissor mechanism, reducing the possibility of platform deviation, jamming, or abnormal swaying during lifting, thus making the lifting and lowering process of the work platform 30 smoother. Furthermore, this invention includes a scissor mechanical limiter 43 at the pivot pin 46 in the middle of the scissor mechanism. When the work platform reaches the required height, the scissor mechanical limiter 43 restricts the freedom of movement of the scissor arm 42 and the pivot pin 46, forming a mechanical lock in addition to the hydraulic support. This transforms the lifting mechanism from solely relying on hydraulic cylinders to a support system combining hydraulic drive and mechanical limiter, structurally reducing the risk of unexpected platform descent due to abnormal hydraulic system pressure.

[0042] The vehicle stability mechanism 50 of this invention forms multi-point support at the front and rear of the vehicle. The two front hydraulic cylinder outriggers 51 are connected to the main beams on both sides of the vehicle body via front hydraulic cylinder outrigger connecting seats 52. The rear uses an integral rear hydraulic cylinder outrigger connecting seat 53 to connect both hydraulic cylinder outriggers 51 simultaneously, giving the two rear support points good overall structural coherence and facilitating the transfer of support load to the vehicle's main beams. Each hydraulic cylinder outrigger 51 is further provided with a universal base plate, allowing for adaptive adjustment when the outrigger contacts ground with a certain height difference or inclination, improving the effective contact degree between the outrigger and the ground. The front and rear outriggers, the integral rear connecting seat, and the universal base plate work together to form a stable multi-point support foundation for the vehicle before lifting, and improve the overall support stability of the vehicle under uneven ground conditions.

[0043] This invention, through the coordinated operation of centralized hydraulic drive, a multi-stage rotary telescopic platform, slider guide rail, scissor lift mechanical limit, and front and rear multi-point adaptive support structures, not only achieves basic functions such as climbing, telescopic, rotation, and stable support, but also takes into account the working range at height, lifting stability, mechanical fall prevention capability, and adaptability to complex terrain. It can still obtain a large effective working range under limited vehicle parking space conditions, providing more stable, safe, and efficient working conditions for equipment inspection, installation and maintenance, and climbing operations in complex spaces, and has significant comprehensive technological progress.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An aerial work platform vehicle, comprising a vehicle body, and a hydraulic pump station, a lifting mechanism, a working platform, and a vehicle stability mechanism mounted on the vehicle body, characterized in that: The hydraulic pump station is used to output hydraulic oil at different pressures to drive the vehicle stability mechanism, lifting mechanism and work platform respectively. The vehicle stability mechanism includes a front outrigger assembly and a rear outrigger assembly. Each outrigger assembly includes a hydraulic cylinder outrigger and a universal base plate installed at the bottom of the hydraulic cylinder outrigger. The rear outrigger assembly includes an integral connecting seat, which is fixed to the main beam of the vehicle body and simultaneously connects two hydraulic cylinder outriggers. The two hydraulic cylinder outriggers of the front outrigger assembly are independently connected to the main beams on both sides of the vehicle body. The lifting mechanism is a scissor lift structure, located between the vehicle body and the work platform. It includes a linkage mechanism consisting of multiple scissor arms and pins, and a lifting cylinder that drives the linkage mechanism to rise and fall. The upper end of the linkage mechanism is provided with a slider, and the bottom of the work platform is provided with a guide rail that slides with the slider. One side of the lower end of the linkage mechanism is hinged to the vehicle body, and the other side is slidably connected to the vehicle body. A locking mechanical limiter is provided at the pin in the middle of the linkage mechanism. The working platform has a multi-layer structure, including a bottom platform, a middle platform and a top platform. The bottom platform is fixed with the guide rail. A rotary drive device is connected between the bottom platform and the middle platform, so that the middle platform and above can rotate horizontally and lock relative to the bottom platform. The middle platform and the top platform are connected by a telescopic slide rail, so that the top platform can telescopically move relative to the middle platform. An anti-collision limit mechanism is provided on the middle platform or the top platform.

2. The aerial work platform vehicle according to claim 1, characterized in that: The lifting mechanism further includes an upper ear plate welded to the upper end of the linkage mechanism and a lower ear plate welded to the lower end of the linkage mechanism, and the lifting cylinder is installed between the upper ear plate and the lower ear plate.

3. The aerial work platform vehicle according to claim 1, characterized in that: The lower end of the linkage mechanism is slidably connected to the vehicle body as follows: a slide rail is provided on the vehicle body, and a slider is provided on the corresponding side of the lower end of the linkage mechanism, which cooperates with the slide rail on the vehicle body.

4. The aerial work platform vehicle according to claim 1, characterized in that: The mechanical limiting component restricts the relative rotation of the scissor arm and the pin in the locked state.

5. The aerial work platform vehicle according to claim 1, characterized in that: The bottom platform is a three-level platform, the middle platform is a two-level platform, and the top platform is a one-level platform. Flanges and railings are welded to the middle platform. The anti-collision limiting mechanism is clamped on the railing. The rotary drive device is connected to the flanges of the bottom platform and the middle platform by bolts. The top platform and the middle platform have through holes on their sides, which are connected to the telescopic slide rails by bolts.

6. The aerial work platform vehicle according to claim 1, characterized in that: The front outrigger assembly of the vehicle stability mechanism is connected to the main beam of the vehicle via a front hydraulic cylinder outrigger connector, and the integral connector of the rear outrigger assembly is a rear hydraulic cylinder outrigger connector.

7. A method for operating an aerial work platform vehicle, using the aerial work platform vehicle as described in any one of claims 1 to 6, characterized in that, Includes the following steps: Start the hydraulic pump station to output hydraulic oil at different pressures; First, extend the hydraulic cylinders of the vehicle stability mechanism, and then use the universal base plate to lift and level the vehicle body. Then the lifting cylinder extends, the scissor lift mechanism unfolds, and its upper slider slides along the guide rail at the bottom of the work platform, causing the work platform to rise vertically. Once the predetermined working height is reached, the mechanical limit component at the central pin of the lifting mechanism is locked. Drive the rotary drive device to rotate the middle platform and above relative to the bottom platform to the required angle and lock it; Drive the telescopic slide rail to extend the top platform relative to the middle platform to the desired position; After the operation is completed, first retract the top platform, and then use the rotary drive device to rotate the middle platform back to the initial position; Release the mechanical limit switch, drive the lifting cylinder to retract, and the work platform will descend and reset. Finally, retract all the hydraulic cylinder outriggers and lift the universal base plate off the ground.

8. The operating method according to claim 7, characterized in that: During the lifting process, the working platform is kept level by the cooperation of the slider and the guide rail.

9. The operating method according to claim 7, characterized in that: After leveling the vehicle body and before lifting it, confirm that the vehicle stability mechanism is securely supported.

10. The operating method according to claim 7, characterized in that: The extension and retraction of the telescopic slide rail, as well as the rotation driven by the rotary mechanism, can be stopped and locked at any angle or position.

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