Automatic leveling device for working platform of hybrid arm overhead working truck

Abstract

The utility model relates to the technical field of mechanical equipment, in particular to an automatic leveling device for a working platform of a hybrid arm overhead working truck, which comprises an operating platform, a horizontal component is arranged at the top of one side of the operating platform, and a trigger component is arranged at the top of the horizontal component. An electromagnetic assembly is arranged on the side, close to the horizontal assembly, of the operation platform, and a locking assembly is arranged on one side of the electromagnetic assembly. The horizontal assembly comprises two connecting rods, and one ends of the two connecting rods are jointly and fixedly connected to one side of the operation platform. According to the automatic leveling device for the working platform of the hybrid arm overhead working truck, adjustment of the self-adaptive horizontal position of the working platform is achieved through the action of gravity on a movable shaft and a balancing weight, and angle locking of the working platform is conducted through a second spring and a first locking disc during power failure; therefore, the self-adaptive angle adjustment can be effectively carried out on a field with an inclination angle or an uneven ground, and the application range and the application scene of the device are widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, concretely is a kind of work platform automatic leveling device of mixed arm aerial work vehicle. BACKGROUND

[0002] Aerial work vehicle refers to the special vehicle that transports staff and uses equipment to the site and carries out aerial work.

[0003] Generally, when using aerial work vehicle, the ground of site needs to be leveled before aerial work, and in the case that ground is uneven or has inclination angle, work platform cannot effectively adapt to horizontal position adjustment, which limits the use range, therefore, the utility model provides a kind of work platform automatic leveling device of mixed arm aerial work vehicle. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of work platform automatic leveling device of mixed arm aerial work vehicle, to solve the problem that generally in the case that aerial work vehicle is used, the ground of site needs to be leveled before aerial work, and in the case that ground is uneven or has inclination angle, work platform cannot effectively adapt to horizontal position adjustment, which limits the use range. To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of work platform automatic leveling device of mixed arm aerial work vehicle, including operation platform, the top of one side of operation platform is provided with horizontal component, the top of horizontal component is provided with trigger component, the side of operation platform close to horizontal component is provided with electromagnetic component, the side of electromagnetic component is provided with locking component;The horizontal component includes two connecting rods, the one end of two connecting rods is fixedly connected on the side of operation platform, the other end of connecting rod is fixedly connected with arc piece, the top of both sides of arc piece is fixedly connected with hinged seat, the inside of arc piece is provided with movable slot and movable slot completely penetrates arc piece, the inside of movable slot is movably connected with movable shaft, the both ends of movable shaft are fixedly connected with counterweight respectively, when operation platform is in completely horizontal state, movable shaft and counterweight are located at the lowest place of movable slot under the action of gravity by arc piece and arc movable slot, counterweight increases the counterweight of movable shaft, and at the same time, it is limited by arc piece on arc piece.

[0005] Further preferably, the triggering assembly comprises two hinged seats, the bottoms of the two hinged seats are fixedly connected to the two sides of the top of the arc-shaped piece respectively, the hinged seats are hinged with the movable pieces, the side away from the movable shaft of the movable piece is fixedly connected with the first electric piece, the inner walls of the two sides of the arc-shaped piece are fixedly connected with the second electric piece respectively, the top of the arc-shaped piece is fixedly connected with the limiting column, the top of the limiting column and the bottom of the movable piece are fixedly connected with the limiting column respectively, the top of the limiting column and the bottom of the movable piece are movably connected with the first spring and the two ends of the first spring are sleeved on the limiting column respectively.

[0006] Further preferably, the locking assembly comprises two fixed columns, one side of the two fixed columns is fixedly connected to one side of the operation platform, the other end of the fixed column is fixedly connected with the limiting piece, the side surface of the fixed column movably sleeved with the fixed piece, the opposite side of the two fixed pieces is fixedly connected with the first locking disc, the opposite side of the fixed piece and the operation platform is movably connected with the second spring and the second spring is movably sleeved on the fixed column, the side with the teeth of the first locking disc is movably connected with the second locking disc.

[0007] Further preferably, the electromagnetic assembly comprises a ring-shaped hollow box, one side of the ring-shaped hollow box is fixedly connected to one side of the operation platform and the ring-shaped hollow box is located between the two fixed columns, the inside of the ring-shaped hollow box is fixedly sleeved with the coil.

[0008] Further preferably, the side away from the first locking disc of the second locking disc is fixedly connected with the hanging arm, the other side of the hanging arm is fixedly connected with the motor, the output shaft end of the motor is fixedly connected to one side of the operation platform and the output shaft end of the motor sequentially penetrates through the hanging arm, the second locking disc, the first locking disc and the ring-shaped hollow box.

[0009] Further preferably, the other side of the operation platform is movably connected with the opening and closing door through the hinge.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] The utility model discloses a first locking disc and second locking disc are mutually engaged after being pasted under the second spring force of triangular tooth of first locking disc and second locking disc, increase the friction between both, improve the stability between operation platform and boom.

[0012] The utility model discloses a first locking disc and second locking disc are mutually engaged after being pasted under the second spring force of triangular tooth of first locking disc and second locking disc, increase the friction between both, improve the stability between operation platform and boom. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0014] Figure 2 It is the three -dimensional structure schematic diagram of the utility model; Figure 1 ;

[0015] Figure 3 It is the three -dimensional structure schematic diagram of the utility model; Figure 2 ;

[0016] Figure 4 It is the three -dimensional structure schematic diagram of the utility model;

[0017] Figure 5 It is the three -dimensional structure schematic diagram of the utility model;

[0018] Figure 6 It is the three -dimensional structure schematic diagram of the utility model;

[0019] In the figure: 1, operation platform; 2, horizontal assembly; 3, trigger assembly; 4, locking assembly; 5, electromagnetic assembly; 6, boom; 7, motor; 8, open-close door; 201, connecting rod; 202, arc-shaped piece; 203, movable slot; 204, movable shaft; 205, counterweight; 301, hinged seat; 302, movable piece; 303, first electric piece; 304, second electric piece; 305, limiting column; 306, first spring; 401, fixed column; 402, limiting piece; 403, second spring; 404, fixed piece; 405, first locking disc; 406, second locking disc; 501, annular hollow box; 502, coil. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-6 The present application provides a technical solution: a working platform automatic leveling device of a mixed-arm aerial work vehicle, comprising an operation platform 1, a horizontal assembly 2 arranged on one side of the top of the operation platform 1, a trigger assembly 3 arranged on the top of the horizontal assembly 2, an electromagnetic assembly 5 arranged on one side of the operation platform 1 close to the horizontal assembly 2, and a locking assembly 4 arranged on one side of the electromagnetic assembly 5; the horizontal assembly 2 comprises two connecting rods 201, one end of the two connecting rods 201 is fixedly connected to one side of the operation platform 1, the other end of the connecting rod 201 is fixedly connected with an arc-shaped piece 202, the top of the arc-shaped piece 202 is fixedly connected with a hinged seat 301 on both sides, a movable slot 203 is arranged in the arc-shaped piece 202 and completely penetrates the arc-shaped piece 202, a movable shaft 204 is movably connected in the arc-shaped piece 202, the two ends of the movable shaft 204 are fixedly connected with counterweights 205, when the operation platform 1 is in a completely horizontal state, the movable shaft 204 and the counterweights 205 are located at the lowest part of the movable slot 203 under the action of gravity, and the counterweights 205 increase the counterweight of the movable shaft 204 and are limited by the arc-shaped piece 202 on the arc-shaped piece 202.

[0022] In the present embodiment, as Figure 2 , Figure 4 and Figure 6As shown, the triggering assembly 3 comprises two hinged seats 301, the bottoms of the two hinged seats 301 are fixedly connected at the two sides of the top of the arc-shaped piece 202 respectively, the hinged seat 301 is hinged with a movable piece 302, the side of the movable piece 302 away from the movable shaft 204 is fixedly connected with a first electric sheet 303, the inner walls of the two sides of the arc-shaped piece 202 are fixedly connected with a second electric sheet 304 respectively, the top of the arc-shaped piece 202 is fixedly connected with a limiting column 305, the top of the limiting column 305 and the bottom of the movable piece 302 are fixedly connected with a first spring 306 respectively and movably, and the two ends of the first spring 306 are sleeved on the limiting column 305.

[0023] In the embodiment, as shown in Figure 2 , Figure 3 and Figure 5 , the locking assembly 4 comprises two fixed columns 401, one side of the two fixed columns 401 is fixedly connected on one side of the operation platform 1, the other end of the fixed column 401 is fixedly connected with a limiting sheet 402, the side surface of the fixed column 401 movably sleeved with a fixed sheet 404, the opposite side of the two fixed sheets 404 is fixedly connected with a first locking disc 405, the opposite side of the fixed sheet 404 and the operation platform 1 movably sleeved with a second spring 403 and the second spring 403 movably sleeved on the fixed column 401, the side of the first locking disc 405 with teeth movably sleeved with a second locking disc 406.

[0024] In the embodiment, as shown in Figure 3 and Figure 5As shown, the electromagnetic assembly 5 comprises a ring-shaped hollow box 501, one side of the ring-shaped hollow box 501 is fixedly connected to one side of the operation platform 1 and located between the two fixed columns 401, a coil 502 is fixedly sleeved in the inside of the ring-shaped hollow box 501, in actual use, a protective shell needs to be installed on the operation platform 1 to shield the horizontal assembly 2 and the triggering assembly 3 to prevent misoperation, when the controller on the overhead working truck controls the lifting arm 6 to perform lifting operation, the lifting arm 6 and the horizontal position will form an included angle, so that the operation platform 1 will tilt when the lifting arm 6 is lifted, when the movable shaft 204 and the counterweight 205 tilt on the operation platform 1, the position of the movable shaft 204 and the counterweight 205 in the middle of the activity groove 203 starts to roll in the direction in which the operation platform 1 tilts, until the movable shaft 204 pushes the first electric sheet 303 to approach and contact the second electric sheet 304 through the movable sheet 302, so that the motor 7 and the coil 502 electrically connected with the first electric sheet 303 and the second electric sheet 304 are powered on, so that the coil 502 with electromagnetic force is adsorbed to the metal first locking disc 405 after being powered on to overcome the force of the second spring 403, so that the first locking disc 405 and the second locking disc 406 which are originally engaged are in a released locking state, and at the same time, the motor 7 is started due to power-on, so that the output shaft end of the motor 7 rotates forward and makes the operation platform 1 fixedly connected thereto rotate, until the operation platform 1 tends to be horizontal, when the operation platform 1 gradually tends to be horizontal, the movable shaft 204 rolls along the activity groove 203 on the arc-shaped part 202 to the other side, until the first electric sheet 303 and the second electric sheet 304 are separated under the action of the first spring 306 through the movable sheet 302, when the first electric sheet 303 and the second electric sheet 304 no longer contact, the coil 502 and the motor 7 are powered off at the same time, so that the first locking disc 405 is not adsorbed by the electromagnetic force of the coil 502, and moves to the direction of the second locking disc 406 under the action of the second spring 403 and makes the two engage through the teeth on the opposite sides, completing the angle locking of the operation platform 1 and the lifting arm 6, and the first electric sheet 303 and the second electric sheet 304 on the other side are reversely connected with the motor 7 and the coil 502, so that the output shaft end of the motor 7 reversely rotates when the operation platform 1 tilts to the other direction.

[0025] As shown in Figure 1 , Figure 3 and Figure 5 , the second locking disc 406 is fixedly connected with the lifting arm 6 away from the first locking disc 405, the other side of the lifting arm 6 is fixedly connected with the motor 7, the output shaft end of the motor 7 is fixedly connected to one side of the operation platform 1 and sequentially penetrates through the lifting arm 6, the second locking disc 406, the first locking disc 405 and the ring-shaped hollow box 501.

[0026] As shown in Figure 1 , Figure 2 and Figure 5As shown, the other side of the operation platform 1 is movably connected with the opening and closing door 8 through a hinge.

[0027] The use method and advantages of the utility model are as follows: the operation platform automatic leveling device of the mixed arm aerial work vehicle, in use, the working process is as follows:

[0028] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, in actual use, the horizontal assembly 2 and the trigger assembly 3 need to be shielded and protected on the operation platform 1 to prevent accidental touch, when the controller on the aerial work vehicle controls the lifting arm 6 to lift and work, the lifting arm 6 and the horizontal position will form an angle, so that the operation platform 1 will tilt when the lifting arm 6 lifts, when the movable shaft 204 and the counterweight 205 tilt on the operation platform 1, the position of the movable shaft 204 and the counterweight 205 in the middle of the movable groove 203 starts to roll in the direction of the tilt of the operation platform 1, until the movable shaft 204 pushes the first electric sheet 303 to approach and contact the second electric sheet 304 through the movable sheet 302, so that the motor 7 and the coil 502 electrically connected with the first electric sheet 303 and the second electric sheet 304 are energized, so that the coil 502 with electromagnetic force is adsorbed to the first locking disc 405 of metal material after energization, so that the first locking disc 405 and the second locking disc 406 originally engaged are unlocked, at the same time, the motor 7 is started due to energization, so that the output shaft end of the motor 7 rotates forward and makes the operation platform 1 fixedly connected to rotate, until the operation platform 1 tends to be horizontal, when the operation platform 1 gradually tends to be horizontal, the movable shaft 204 rolls along the movable groove 203 on the arc-shaped piece 202 to the other side, until the first electric sheet 303 and the second electric sheet 304 are separated under the action of the first spring 306, when the first electric sheet 303 and the second electric sheet 304 are no longer in contact, the coil 502 and the motor 7 are simultaneously de-energized, so that the first locking disc 405 is not adsorbed by the electromagnetic force of the coil 502, and moves to the direction of the second locking disc 406 under the action of the second spring 403 and makes the two engage through the teeth on the opposite side, the angle locking of the operation platform 1 and the lifting arm 6 is completed, and the first electric sheet 303 and the second electric sheet 304 on the other side are reversely connected with the motor 7 and the coil 502, so that the output shaft end of the motor 7 reversely rotates when the operation platform 1 tilts to the other direction.

[0029] The basic principle, main features and advantages of the present application are shown and described above. The technical personnel in the industry should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic leveling device for the working platform of a hybrid boom aerial work platform, comprising an operating platform (1), characterized in that: A horizontal component (2) is provided on the top of one side of the operating platform (1), a trigger component (3) is provided on the top of the horizontal component (2), an electromagnetic component (5) is provided on the side of the operating platform (1) near the horizontal component (2), and a locking component (4) is provided on the side of the electromagnetic component (5). The horizontal component (2) includes two connecting rods (201). One end of the two connecting rods (201) is fixedly connected to one side of the operating platform (1). The other end of the connecting rods (201) is fixedly connected to an arc-shaped component (202). The top two sides of the arc-shaped component (202) are fixedly connected to hinge seats (301). The arc-shaped component (202) has a movable groove (203) inside and the movable groove (203) completely penetrates the arc-shaped component (202). The movable groove (203) is movably connected to a movable shaft (204). The two ends of the movable shaft (204) are respectively fixedly connected to counterweights (205).

2. The automatic leveling device for the working platform of a hybrid boom aerial work platform according to claim 1, characterized in that: The trigger assembly (3) includes two hinge seats (301), the bottoms of the two hinge seats (301) are respectively fixedly connected to the top two sides of the arc-shaped part (202), the hinge seats (301) are hinged to a movable piece (302), the movable piece (302) is fixedly connected to a first electric piece (303) on the side away from the movable shaft (204), the inner walls of the two sides of the arc-shaped part (202) are respectively fixedly connected to a second electric piece (304), the top of the arc-shaped part (202) is fixedly connected to a limit post (305), the top of the limit post (305) and the bottom of the movable piece (302) are respectively fixedly connected to a limit post (305), the top of the limit post (305) and the bottom of the movable piece (302) are movably connected to a first spring (306), and the two ends of the first spring (306) are respectively sleeved on the limit post (305).

3. The automatic leveling device for the working platform of a hybrid boom aerial work platform according to claim 1, characterized in that: The locking assembly (4) includes two fixed posts (401). One side of the two fixed posts (401) is fixedly connected to one side of the operating platform (1). The other end of the fixed post (401) is fixedly connected to a limiting piece (402). A fixing piece (404) is movably sleeved on the side surface of the fixed post (401). The opposite sides of the two fixing pieces (404) are fixedly connected to a first locking disc (405). A second spring (403) is movably connected to the side of the fixing piece (404) opposite to the operating platform (1), and the second spring (403) is movably sleeved on the fixed post (401). The toothed side of the first locking disc (405) is movably connected to a second locking disc (406).

4. The automatic leveling device for the working platform of a hybrid boom aerial work platform according to claim 1, characterized in that: The electromagnetic component (5) includes an annular hollow box (501), one side of which is fixedly connected to one side of the operating platform (1) and the annular hollow box (501) is located between two fixed columns (401). A coil (502) is fixedly sleeved inside the annular hollow box (501).

5. The automatic leveling device for the working platform of a hybrid boom aerial work platform according to claim 3, characterized in that: The second locking disc (406) is fixedly connected to a boom (6) on the side away from the first locking disc (405), and a motor (7) is fixedly connected to the other side of the boom (6). The output shaft end of the motor (7) is fixedly connected to one side of the operating platform (1), and the output shaft end of the motor (7) passes through the boom (6), the second locking disc (406), the first locking disc (405), and the annular hollow box (501) in sequence.

6. The automatic leveling device for the working platform of a hybrid boom aerial work platform according to claim 1, characterized in that: The other side of the operating platform (1) is movably connected to an opening and closing door (8) via a hinge.

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