Self-propelled overhead working truck

Abstract

The utility model relates to the technical field of aerial work platforms, and discloses a self-propelled aerial work truck which comprises a truck body and a folding frame, installation grooves are formed in the two sides of the truck body, worm wheels are rotationally connected into the installation grooves through main shafts, and the worm wheels are driven by a driving assembly to drive the main shafts to rotate. Transmission bevel gears are fixedly arranged at the two ends of the main shaft correspondingly, and storage grooves are formed in the two sides of the front face and the two sides of the back face of the vehicle body correspondingly. The utility model has the beneficial effects that the main shaft is driven by the driving component, the transmission bevel gear can be driven to rotate, the transmission bevel gear can drive the driven shaft to rotate through the driven bevel gear, the supporting component can do circular motion along the driven shaft, namely the supporting component can be unfolded, and the bottom end of the supporting component is landed by extending the supporting component; the supporting assembly can increase the operation area and the supporting area, and the stability of the vehicle body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work platforms, in particular to a self-propelled aerial work vehicle. Background Art

[0002] Aerial work vehicles are a type of vehicle that is controlled by a hydraulic or electric system and has multiple hydraulic cylinders and can be lifted up and down to perform operations. They can be used for engineering construction, high-altitude exterior wall cleaning, landscaping, billboard installation, factory maintenance, street light maintenance, high-altitude power equipment repair, tree pruning, high-speed monitoring maintenance, public security monitoring maintenance, warehouse equipment maintenance, filming of film and television advertisements, internal fixation of steel structures, and construction of elevated bridges.

[0003] Its application number is "CN202020656312.9", which discloses a "self-propelled scissor-type aerial work platform", which "comprises wheels, a chassis, a mounting seat, and a workbench. A driving assembly is fixedly arranged in the chassis, and four wheels are rotatably connected to the bottom end of the driving assembly. The wheels are evenly distributed, and an inspection door is arranged between the front and rear wheels of the chassis. A front frame is fixedly connected to the front of the chassis, and a mounting seat is fixedly connected directly above the chassis. Two sets of guide rails are horizontally arranged in the mounting seat, and the guide rails are horizontal to the travel direction of the device, and two connecting rods are installed in each guide rail, and a hydraulic motor is fixedly connected to the outer side of the connecting rod, and a scissor rod is sleeved on the connecting rod. In the utility model, a travel system and a driving assembly are arranged at the bottom, and the construction personnel can adjust the position of the device from the top to avoid lowering the workbench for adjustment.

[0004] However, the above method still has the following defects: the autonomous movement of the scissor-type aerial work platform can be achieved through the travel system and the drive assembly, but the working surface is small, and it is difficult to increase the support area and maintain the stability of the travel system after movement, which easily leads to shaking and displacement of the scissor-type aerial work platform, poor stability, and certain safety hazards. Utility Model Content

[0005] The utility model aims to provide a self-propelled aerial work vehicle to solve the problems raised in the above background technology, such as small working surface, difficulty in increasing the supporting area and maintaining the stability of the traveling system after moving.

[0006] The utility model provides the following technical scheme: a self-propelled aerial work vehicle comprises a vehicle body and a folding frame, both sides of the vehicle body are provided with mounting grooves, the interior of the mounting grooves is connected with a worm gear through a main shaft rotation, and the worm gear is driven by a driving assembly to drive the main shaft to rotate, both ends of the main shaft are fixed with transmission bevel gears, both sides of the front side and both sides of the back side of the vehicle body are provided with storage grooves, the interior of the storage grooves is connected with a driven bevel gear through a driven shaft rotation, the driven bevel gear is meshed with the transmission bevel gear, the driven shaft is connected with a supporting assembly, the top of the vehicle body is provided with a folding frame, and the top of the folding frame is provided with a bearing assembly.

[0007] As a preferred technical solution of the utility model, the driving assembly includes a mounting plate, a motor and a worm. The mounting plate is fixedly connected to the inside of the mounting groove by bolts. The motor is fixedly mounted on the top surface of the mounting plate. The output shaft of the motor is connected to the worm, and the worm is meshingly connected to the worm wheel.

[0008] As a preferred technical solution of the utility model, vertical plate one and vertical plate two are fixedly provided on the top of the mounting plate, and two ends of the worm are rotatably connected to vertical plate one and vertical plate two respectively.

[0009] As a preferred technical solution of the utility model, a protective cover is provided on the surface of the mounting groove, the main shaft is rotatably connected to the inside of the mounting groove through bearing 1, the worm gear is fixedly connected to the main shaft, the driven shaft is rotatably connected to the inside of the storage groove through bearing 2, and the driven bevel gear is fixedly connected to the top of the driven shaft.

[0010] As a preferred technical solution of the utility model, an inspection door is provided on the surface of the vehicle body, a ladder is welded on the top of one side of the vehicle body, supports are welded on both sides of the top of the vehicle body, one side of the bottom end of the folding frame is hinged to one side of the support, the other side of the bottom end of the folding frame is slidably connected to the other side of the support, and the bottom of the folding frame is hinged with two adjusting cylinders.

[0011] As a preferred technical solution of the utility model, the support assembly includes a support leg and a support cylinder. The support leg is welded to the bottom of the driven shaft, a support cylinder is installed on one side of the bottom end of the support leg, and the hydraulic rod of the support cylinder is fixedly connected to a cushion block.

[0012] As a preferred technical solution of the utility model, the bearing assembly includes a platform, a base and a fence. The bottom end of the platform is fixed with a base, one side of the base is hinged to one side of the top of the folding frame, and the other side of the base is slidably connected to the other side of the top of the folding frame.

[0013] As a preferred technical solution of the utility model, a channel is provided on one side of the fence, and a safety door is hinged on the surface of the channel.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The self-propelled aerial work vehicle drives the main shaft through the driving assembly, which can drive the transmission bevel gear to rotate. The transmission bevel gear can drive the driven shaft to rotate through the driven bevel gear, so that the support assembly can make a circular motion along the driven shaft, and the support assembly can be unfolded. By extending the support assembly and making its bottom fall to the ground, the support assembly can increase the working area and support area, improve the stability of the vehicle body, prevent the vehicle body from shaking and displacement, and reduce safety hazards.

[0016] 2. The self-propelled aerial work vehicle can ensure the self-propelled movement of the vehicle body by retracting the support assembly and making its bottom suspended in the air. The support assembly can be folded by driving the main shaft in reverse through the driving assembly, and the support assembly can be stored in the storage groove without occupying the external space of the vehicle body, which is convenient for the movement of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the vehicle body of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the main shaft of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the drive assembly of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the load-bearing component of the utility model.

[0022] In the figure: 1. vehicle body; 2. mounting groove; 3. ladder; 4. drive assembly; 401. mounting plate; 402. motor; 403. worm; 404. vertical plate one; 405. vertical plate two; 5. main shaft; 6. worm gear; 7. driving bevel gear; 8. storage groove; 9. driven shaft; 10. driven bevel gear; 11. support assembly; 1101. support leg; 1102. support cylinder; 1103. pad; 12. bearing one; 13. bearing two; 14. inspection door; 15. folding frame; 16. adjusting cylinder; 17. support; 18. load-bearing assembly; 1801. platform; 1802. base; 1803. fence; 1804. passage; 1805. safety door; 19. protective cover. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figures 1 to 5 In the embodiment of the utility model, a vehicle body 1 and a folding frame 15 are included. A mounting groove 2 is provided on both sides of the vehicle body 1. A worm gear 6 is connected to the interior of the mounting groove 2 through a main shaft 5 for rotation, and the worm gear 6 is driven by a driving assembly 4 to drive the main shaft 5 for rotation. Transmission bevel gears 7 are fixedly provided at both ends of the main shaft 5. Storage grooves 8 are provided on both sides of the front and back of the vehicle body 1. A driven bevel gear 10 is connected to the interior of the storage groove 8 for rotation through a driven shaft 9. The driven bevel gear 10 is meshed with the transmission bevel gear 7. The driven shaft 9 is connected with a supporting assembly 11. The main shaft 5 is driven by the driving assembly 4 to drive the transmission bevel gear 7 to rotate. The transmission bevel gear 7 can drive the driven shaft 9 to rotate through the driven bevel gear 10, so that the supporting assembly 11 can make a circular motion along the driven shaft 9, that is, the supporting assembly 11 can be unfolded. The supporting assembly 11 can increase the working area and the supporting area. A folding frame 15 is provided at the top of the vehicle body 1. A bearing assembly 18 is provided at the top of the folding frame 15, and people can be carried out through the bearing assembly 18.

[0025] In this embodiment, preferably, the driving assembly 4 includes a mounting plate 401, a motor 402 and a worm 403. The mounting plate 401 is fixedly connected to the inside of the mounting groove 2 by bolts. The motor 402 is fixedly installed on the top surface of the mounting plate 401. The output shaft of the motor 402 is connected to the worm 403. The worm 403 is meshed with the worm wheel 6. The worm 403 is driven by the motor 402, and the worm 403 can drive the main shaft 5 to rotate through the worm wheel 6.

[0026] In this embodiment, preferably, a vertical plate 1 404 and a vertical plate 2 405 are fixedly provided at the top of the mounting plate 401, and both ends of the worm 403 are rotatably connected to the vertical plate 1 404 and the vertical plate 2 405, respectively, so that both ends of the worm 403 can be supported by the vertical plate 1 404 and the vertical plate 2 405;

[0027] In this embodiment, preferably, a protective cover 19 is provided on the surface of the mounting groove 2, and the protective cover 19 can provide protection for the interior of the mounting groove 2, the main shaft 5 is rotatably connected to the interior of the mounting groove 2 through a bearing 12, the worm gear 6 is fixedly connected to the main shaft 5, the driven shaft 9 is rotatably connected to the interior of the storage groove 8 through a bearing 2 13, and the driven bevel gear 10 is fixedly connected to the top of the driven shaft 9, and the main shaft 5 and the driven shaft 9 can be supported by the bearing 12 and the bearing 2 13 respectively;

[0028] In this embodiment, preferably, an inspection door 14 is provided on the surface of the vehicle body 1, through which the interior of the vehicle body 1 can be inspected, a ladder 3 is welded on the top of one side of the vehicle body 1, through which the vehicle body 1 can be climbed, supports 17 are welded on both sides of the top of the vehicle body 1, one side of the bottom end of the folding frame 15 is hinged to one side of the support 17, and the other side of the bottom end of the folding frame 15 is slidably connected to the other side of the support 17, and the bottom of the folding frame 15 is hinged to two adjusting cylinders 16, the folding frame 15 can be supported by the support 17, and the folding frame 15 can be driven to rise and fall by adjusting the cylinders 16;

[0029] In this embodiment, preferably, the support assembly 11 includes a support leg 1101 and a support cylinder 1102. The support leg 1101 is welded to the bottom of the driven shaft 9. The support cylinder 1102 is installed on one side of the bottom end of the support leg 1101. The hydraulic rod of the support cylinder 1102 is fixedly connected with a cushion block 1103. The cushion block 1103 is driven to descend by the support cylinder 1102, and the support leg 1101 can support the vehicle body 1.

[0030] In this embodiment, preferably, the bearing assembly 18 includes a platform 1801, a base 1802 and a fence 1803. The base 1802 is fixedly provided at the bottom end of the platform 1801. One side of the base 1802 is hinged to one side of the top of the folding frame 15. The other side of the base 1802 is slidably connected to the other side of the top of the folding frame 15. The platform 1801 can be connected to the folding frame 15 through the base 1802. Aerial work can be performed through the platform 1801. The fence 1803 can provide protection for the human body.

[0031] In this embodiment, preferably, a passage 1804 is provided on one side of the fence 1803, through which workers can reach the platform 1801, and a safety door 1805 is hinged on the surface of the passage 1804, through which the passage 1804 can be protected.

[0032] When in use, the bearing assembly 18 is first moved by the vehicle body 1 to a designated location, and then the worm 403 is driven by the motor 402 of the driving assembly 4. The worm 403 drives the main shaft 5 to rotate through the worm wheel 6, and the main shaft 5 drives the transmission bevel gear 7 to rotate. The transmission bevel gear 7 drives the driven shaft 9 to rotate through the driven bevel gear 10. The support assembly 11 makes a circular motion along the driven shaft 9, and the support assembly 11 can be unfolded. The angular friction between the worm wheel 6 and the worm 403 can realize the self-locking of the main shaft 5.

[0033] Then, the support cylinder 1102 of the support assembly 11 pushes the cushion block 1103 downward to the ground. The support assembly 11 can increase the working area and the supporting area through the support legs 1101 and the cushion block 1103, thereby improving the stability of the vehicle body 1 and preventing the vehicle body 1 from shaking and shifting. The operator climbs the vehicle body 1 through the ladder 3, and the bearing assembly 18 can ensure that the operator reaches the platform 1801 through the channel 1804. After reaching the platform 1801 of the bearing assembly 18, the folding frame 15 is driven to rise and fall by adjusting the oil cylinder 16 to adjust the height of the platform 1801, thereby changing the working height.

[0034] After the action is over, the staff controls the adjustment cylinder 16 to drive the folding frame 15 to retract and drive the platform 1801 to descend, and then lifts the cushion block 1103 through the support cylinder 1102, and then drives the worm 403 in reverse through the motor 402 to fold the support assembly 11 and store it into the storage slot 8, which does not occupy the external space of the vehicle body 1 and facilitates the movement of the vehicle body 1.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-propelled aerial work vehicle, comprising a vehicle body (1) and a folding frame (15), characterized in that: The vehicle body (1) is provided with mounting grooves (2) on both sides, and a worm gear (6) is rotatably connected to the interior of the mounting groove (2) via a main shaft (5), and the worm gear (6) is driven by a driving assembly (4) to drive the main shaft (5) to rotate, and a transmission bevel gear (7) is fixedly provided at both ends of the main shaft (5). The vehicle body (1) is provided with storage grooves (8) on both sides of the front side and both sides of the back side, and a driven bevel gear (10) is rotatably connected to the interior of the storage groove (8) via a driven shaft (9), and the driven bevel gear (10) is meshed with the transmission bevel gear (7), and the driven shaft (9) is connected to a support assembly (11). A folding frame (15) is provided at the top end of the vehicle body (1), and a bearing assembly (18) is provided at the top end of the folding frame (15).

2. The self-propelled aerial work vehicle according to claim 1, characterized in that: The driving assembly (4) comprises a mounting plate (401), a motor (402) and a worm (403); the mounting plate (401) is fixedly connected to the inside of the mounting groove (2) by means of bolts; the motor (402) is fixedly mounted on the top surface of the mounting plate (401); the output shaft of the motor (402) is connected to the worm (403); and the worm (403) is meshedly connected to the worm wheel (6).

3. The self-propelled aerial work vehicle according to claim 2, characterized in that: A vertical plate 1 (404) and a vertical plate 2 (405) are fixedly provided at the top of the mounting plate (401), and two ends of the worm (403) are rotationally connected to the vertical plate 1 (404) and the vertical plate 2 (405).

4. The self-propelled aerial work vehicle according to claim 1, characterized in that: A protective cover (19) is provided on the surface of the mounting groove (2); the main shaft (5) is rotatably connected to the inside of the mounting groove (2) via a bearing 1 (12); the worm gear (6) is fixedly connected to the main shaft (5); the driven shaft (9) is rotatably connected to the inside of the receiving groove (8) via a bearing 2 (13); and the driven bevel gear (10) is fixedly connected to the top of the driven shaft (9).

5. The self-propelled aerial work vehicle according to claim 1, characterized in that: The surface of the vehicle body (1) is provided with an inspection door (14), a ladder (3) is welded to the top of one side of the vehicle body (1), supports (17) are welded to both sides of the top of the vehicle body (1), one side of the bottom end of the folding frame (15) is hinged to one side of the support (17), the other side of the bottom end of the folding frame (15) is slidably connected to the other side of the support (17), and the bottom of the folding frame (15) is hinged to two adjusting cylinders (16).

6. The self-propelled aerial work vehicle according to claim 1, characterized in that: The support assembly (11) comprises a support leg (1101) and a support cylinder (1102); the support leg (1101) is welded to the bottom of the driven shaft (9); a support cylinder (1102) is installed on one side of the bottom end of the support leg (1101); and a hydraulic rod of the support cylinder (1102) is fixedly connected to a cushion block (1103).

7. The self-propelled aerial work vehicle according to claim 1, characterized in that: The bearing assembly (18) comprises a platform (1801), a base (1802) and a fence (1803); the base (1802) is fixedly provided at the bottom end of the platform (1801); one side of the base (1802) is hinged to one side of the top end of the folding frame (15); and the other side of the base (1802) is slidably connected to the other side of the top end of the folding frame (15).

8. The self-propelled aerial work vehicle according to claim 7, characterized in that: A passage (1804) is provided on one side of the fence (1803), and a safety door (1805) is hinged on the surface of the passage (1804).

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