Electric control steering chassis of electric control self-walking single-arm crane

Abstract

The invention belongs to the field of engineering machinery, and particularly relates to an electric control steering chassis of an electric control self-walking single-arm crane. A motor is started through cooperation of an encoder and a controller, through cooperation of a gear, a rotating shaft, a gear ring and a rubber wheel, an electric steering system achieves the effects that the whole device is more flexible, the response is faster, and the maintenance cost is generally low, a hydraulic rod drives a limiting block to move upwards, and the effect of rapidly fixing the position of a lifting table is achieved; and through cooperation of a telescopic rod, a spring and a clamping block, the effect of rapidly fixing the limiting block is achieved. Pedestrians are conveniently prompted through a rubber plate and a warning lamp, meanwhile, the effect of protecting the base is achieved, the output end of an electric push rod drives a moving plate to move in the base, the moving plate slides on the outer wall of a guide rod, the effect of assisting the moving plate in moving is achieved, and the moving plate moves to drive the base to move. The effect of adjusting the effective area of the whole base is achieved, and the overall stability of the base is improved.

Description

Technical Field

[0001] The invention belongs to the field of engineering machinery, and in particular relates to an electrically controlled steering chassis of an electrically controlled self-propelled single-arm crane. Background Art

[0002] With the continuous development of industrial technology, cranes, as an important lifting equipment, have been widely used in various fields. As a special form of crane, single-arm cranes have the advantages of simple structure, easy operation, and strong adaptability. Therefore, they have been widely used in some specific occasions. In the operation of single-arm cranes, steering is an important operation link. Traditional single-arm cranes usually use manual steering. The operator needs to manually control the steering wheel to achieve the steering of the crane. However, the manual steering method is cumbersome and inefficient. The manual steering method is difficult to meet actual needs and requires an electronically controlled steering chassis.

[0003] The patent with announcement number CN203333191U discloses a large chassis bidirectional telescopic wheeled crane, comprising a main disc, a lifting platform and a transmission device for driving the lifting platform to rotate are rotatably mounted on the main disc, the transmission device is connected to an engine, a hoisting device and an operating room are mounted on the lifting platform, telescopic discs are respectively arranged on both sides of the main disc, a walking steering device is respectively mounted on the bottom of the main disc and the telescopic disc, and a telescopic supporting device is respectively mounted on the main disc and the telescopic disc; when working, the telescopic disc is extended; when walking, the telescopic disc is folded, reducing the volume of the invention, facilitating passing through narrow roads and turning flexibly, in this application, after adjusting the angle of the lifting platform, it becomes relatively difficult to fix its position, and in the process of lifting heavy objects, this unstable state may cause the lifting platform to shake, thereby adversely affecting the overall practicality of the chassis, therefore, after the angle adjustment, it is crucial to ensure the stability of the lifting platform to avoid negative impact on the use effect of the chassis. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an electrically controlled self-propelled single-arm crane and an electrically controlled steering chassis, aiming to improve the problem that after the angle of the lifting platform is adjusted, it is inconvenient to fix the position of the lifting platform, which easily causes the lifting platform to shake when lifting heavy objects, affecting the overall practicality of the chassis.

[0005] The present invention provides the following technical solutions:

[0006] An electrically controlled self-propelled single-arm crane electrically controlled steering chassis comprises a base, the upper surface of the base is slidably connected to a lifting platform; a plurality of rubber wheels are rollingly connected to the inside of the lifting platform, and the lower surface of the rubber wheels is in contact with the upper surface of the base; a motor is fixedly connected to the inside of the base, an encoder and a controller are fixedly connected to the outer wall of the motor, the controller and the encoder are electrically connected and control the motor, and a gear is fixedly connected to the output end of the motor; a rotating shaft is rotatably connected to the inside of the base, and the top end of the rotating shaft is connected to the lower surface of the lifting platform through a bearing; a gear ring is fixedly connected to the outer wall of the rotating shaft, and the gear ring is meshed with the gear; the base A hydraulic rod is fixedly connected to the interior of the base, and the driving end of the hydraulic rod is fixedly connected to a limit block, and the outer wall of the limit block is slidably connected to the interior of the base; a telescopic rod is fixedly connected to the interior of the base, and a clamping block is fixedly connected to the outer wall of the telescopic rod, and the outer wall of the clamping block is arranged inside the limit block; a spring is sleeved on the outer wall of the telescopic rod, one end of the spring is fixedly connected to the interior of the base, and the other end of the spring is fixedly connected to the outer wall of the clamping block; a circle of clamping grooves are symmetrically arranged on the bottom surface of the lifting platform, and when the hydraulic rod is started, the end of the limit block is clamped in the corresponding clamping groove on the bottom surface of the lifting platform; a protective component is arranged on the outer wall of the base.

[0007] Furthermore, the protection component includes a rubber plate, the rubber plate is fixedly connected to the outer wall of the base, and the inside of the rubber plate is fixedly connected with a bilaterally symmetrical warning light.

[0008] Furthermore, the outer wall of the rubber plate is fixedly connected with a sensor, the upper surface of the base is fixedly connected with an electric control box, and the electric control box is electrically connected to the sensor and the warning light.

[0009] Furthermore, an electric push rod is fixedly connected inside the base, a driving end of the electric push rod is fixedly connected to a moving plate, a wheel is rotatably connected inside the moving plate, and the wheel is electrically connected to an electric control box.

[0010] Furthermore, the outer wall of the movable plate is slidably connected to the inside of the base, the inner wall of the movable plate is slidably connected to a guide rod, and the outer wall of the guide rod is fixedly connected to the inside of the base.

[0011] Furthermore, a left-right symmetrical connecting block is fixedly connected to the outer wall of the base, and a rotating rod is rotatably connected to the interior of the connecting block.

[0012] Furthermore, the outer wall of the rotating rod is fixedly connected with a supporting rod, and the inner wall of the supporting rod is threadedly connected with a screw rod.

[0013] Furthermore, a rotating handle is fixedly connected to the top end of the screw rod, and a supporting foot is fixedly connected to the bottom end of the screw rod.

[0014] Beneficial effects of the present invention:

[0015] 1. In the present invention, the encoder and the controller are used to start the motor, and the gears, shafts, gear rings and rubber wheels are used to cooperate to replace the traditional hydraulic system. The electric steering system makes the entire device more flexible, more responsive and generally has a lower maintenance cost. The hydraulic rod moves the limit block upward to quickly fix the position of the lifting platform. The limit block is quickly fixed through the cooperation of the telescopic rod, spring and card block, which solves the problem that after the angle of the lifting platform is adjusted, it becomes relatively difficult to fix its position. The unstable state may cause the lifting platform to shake, which in turn has an adverse effect on the overall practicality of the chassis, and improves the stability of the chassis.

[0016] 2. In the present invention, the rubber plate and the warning light are used to conveniently remind pedestrians and protect the base at the same time. The output end of the electric push rod moves the movable plate inside the base, and the movable plate slides on the outer wall of the guide rod to assist the movement of the movable plate. Through the movement of the movable plate, the effective area of ​​the entire base is adjusted, and the overall stability of the base is improved. At the same time, the volume of the chassis can be reduced, which is convenient for passing through narrow roads and flexible turning, thereby improving the overall practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of an electrically controlled steering chassis of an electrically controlled self-propelled single-arm crane of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of a chassis of an electrically controlled self-propelled single-arm crane of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of a limit block of an electrically controlled steering chassis of an electrically controlled self-propelled single-arm crane of the present invention;

[0020] Figure 4 The present invention is a schematic diagram of the internal structure of a lifting platform of an electrically controlled self-propelled single-arm crane electrically controlled steering chassis.

[0021] In the figure: 1. base; 2. lifting platform; 3. motor; 4. gear; 5. rotating shaft; 6. gear ring; 7. hydraulic rod; 8. limit block; 9. rubber wheel; 10. encoder; 11. electric push rod; 12. guide rod; 13. moving plate; 14. wheel; 15. connecting block; 16. rotating rod; 17. supporting rod; 18. screw; 19. rotating handle; 20. supporting foot; 21. electric control box; 22. rubber plate; 23. warning light; 24. sensor; 25. telescopic rod; 26. block; 27. spring; 28. controller. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and technical solutions.

[0023] Reference Figure 1-3 , an embodiment of the present invention: an electrically controlled self-propelled single-arm crane electrically controlled steering chassis, comprising a base 1, the upper surface of the base 1 is rollingly connected to a lifting platform 2; the internal rotation of the lifting platform 2 is connected to a plurality of rubber wheels 9, the lower surface of the rubber wheel 9 is in contact with the upper surface of the base 1; the internal part of the base 1 is fixedly connected to a motor 3, the outer wall of the motor 3 is fixedly connected to an encoder 10 and a controller 28, the controller 28 and the encoder 10 are electrically connected and control the motor 3, and the output end of the motor 3 is fixedly connected to a gear 4; the internal part of the base 1 is rotatably connected to a rotating shaft 5, the top end of the rotating shaft 5 is connected to the lower surface of the lifting platform 2 through a bearing; the outer wall of the rotating shaft 5 is fixedly connected to a gear ring 6, and the gear ring 6 is meshed with the gear 4; A hydraulic rod 7 is fixedly connected to the inside of the base 1, and the driving end of the hydraulic rod 7 is fixedly connected to a limit block 8, and the outer wall of the limit block 8 is slidably connected to the inside of the base 1; a telescopic rod 25 is fixedly connected to the inside of the base 1, and a clamping block 26 is fixedly connected to the outer wall of the telescopic rod 25, and the outer wall of the clamping block 26 is arranged inside the limit block 8; a spring 27 is sleeved on the outer wall of the telescopic rod 25, one end of the spring 27 is fixedly connected to the inside of the base 1, and the other end of the spring 27 is fixedly connected to the outer wall of the clamping block 26; a circle of clamping grooves are symmetrically arranged on the bottom surface of the lifting platform 2, and when the hydraulic rod 7 is started, the end of the limit block 8 is clamped in the corresponding clamping groove on the bottom surface of the lifting platform 2; a protective component is arranged on the outer wall of the base 1.

[0024] Specifically, the motor 3 is started by controlling the encoder 10 and the controller 28, and the motor 3 drives the gear 4 to rotate, and the gear 4 then drives the meshing rack to rotate, and the rotation of the rack makes the rotating shaft 5 and the lifting platform 2 connected thereto adjust their positions. Then the hydraulic rod 7 is started to move it with the limit block 8 to the corresponding slot on the bottom surface of the lifting platform 2, so as to fix the position of the lifting platform 2. In this process, the encoder 10 plays a key role. It can convert the rotation angle of the motor 3 into a digital signal, so as to accurately control the rotation of the motor 3. Through the control of the encoder 10, the speed and direction of the motor 3 can be accurately adjusted, and then the rotation of the gear 4 and the rack can be controlled to achieve the position adjustment of the lifting platform 2.

[0025] Reference Figure 1-2 and Figure 4The protective component includes a rubber plate 22, and a left-right symmetrical warning light 23 is fixedly connected to the inside of the rubber plate 22. The rubber plate 22 is fixedly connected to the outer wall of the base 1, and a sensor 24 is fixedly connected to the outer wall of the rubber plate 22. An electric control box 21 is fixedly connected to the upper surface of the base 1, and the electric control box 21 and the sensor 24 and the warning light 23 are electrically connected. An electric push rod 11 is fixedly connected to the inside of the base 1, and a moving plate 13 is fixedly connected to the driving end of the electric push rod 11. The inside of the moving plate 13 is rotatably connected to a wheel 14, and the wheel 14 is electrically connected to the electric control box 21. The outer wall of the moving plate 13 is slidably connected to the inside of the base 1, and the inner wall of the moving plate 13 is slidably connected to a guide rod 12, and the outer wall of the guide rod 12 is fixedly connected to the inside of the base 1.

[0026] Specifically, by starting the electric push rod 11, the movable plate 13 can slide inside the base 1, thereby adjusting the length of the base 1. This design makes it more convenient for the device to reverse on narrow roads. In the process of adjusting the length of the base 1, the electric push rod 11 plays a key role. By driving the electric push rod 11, the movable plate 13 can slide freely inside the base 1, thereby realizing continuous adjustment of the length of the base 1.

[0027] Reference Figure 1-2 The outer wall of the base 1 is fixedly connected with a left-right symmetrical connecting block 15, the interior of the connecting block 15 is rotatably connected with a rotating rod 16, the outer wall of the rotating rod 16 is fixedly connected with a supporting rod 17, the internal thread of the supporting rod 17 is connected with a screw 18, the top end of the screw 18 is fixedly connected with a rotating handle 19, and the bottom end of the screw 18 is fixedly connected with a supporting foot 20.

[0028] Specifically, the support rod 17 and the rotating rod 16 are pulled to rotate inside the connecting block 15, and the rotating handle 19 drives the screw 18 to rotate inside the support rod 17. Through the rotation of the screw 18, the supporting foot 20 can move downward, thereby fixing the entire device. This fixing function makes the device more stable and reliable during use, avoids errors caused by movement or vibration, and improves work efficiency and safety.

[0029] Working principle: when the device needs to be used, first start the sensor 24, and transmit the signal to the electric control box 21 through the sensor 24, and the electric control box 21 increases the kinetic energy of the rotation of the wheel 14 to achieve the effect of electric self-propelled walking, and the signal is transmitted to the controller 28 by controlling the encoder 10 to start the motor 3, and the motor 3 rotates the gear 4, and the gear 4 rotates the meshing rack, and the rotation of the rack achieves the effect of adjusting the position of the shaft 5 and the lifting platform 2, and then start the hydraulic rod 7 to move the limit block 8 to the corresponding slot on the bottom surface of the lifting platform 2, and the position of the lifting platform 2 is adjusted. The lifting platform 2 is fixed by the telescopic rod 25 with the spring 27 and the card block 26, so that the lifting platform 2 can be fixed more stably. The electric push rod 11 is started to slide the movable plate 13 inside the base 1 to adjust the length of the base 1, which is convenient for the car to reverse on a narrow road. Finally, the support rod 17 and the rotating rod 16 are pulled to rotate inside the connecting block 15, and then the rotating handle 19 is turned to rotate the screw 18 inside the support rod 17. The support foot 20 is moved downward by the rotation of the screw 18, so as to fix the entire device.

Claims

1. An electrically controlled self-propelled single-arm crane electrically controlled steering chassis, comprising a base (1), characterized in that: The upper surface of the base (1) is connected to a lifting platform (2) in a rolling manner; a plurality of rubber wheels (9) are connected to the lifting platform (2) in a rotatable manner, and the lower surfaces of the rubber wheels (9) are in contact with the upper surface of the base (1); a motor (3) is fixedly connected to the inside of the base (1); an encoder (10) and a controller (28) are fixedly connected to the outer wall of the motor (3); the controller (28) and the encoder (10) are electrically connected to and control the motor (3); a gear (4) is fixedly connected to the output end of the motor (3); a rotating shaft (5) is connected to the inside of the base (1) in a rotatable manner, and the top end of the rotating shaft (5) is connected to the lower surface of the lifting platform (2) through a bearing; a gear ring (6) is fixedly connected to the outer wall of the rotating shaft (5), and the gear ring (6) is meshed with the gear (4); a hydraulic actuator (14) is fixedly connected to the inside of the base (1). A pressure rod (7), the driving end of the hydraulic rod (7) is fixedly connected to a limit block (8), and the outer wall of the limit block (8) is slidably connected to the inside of the base (1); a telescopic rod (25) is fixedly connected to the inside of the base (1), and a clamping block (26) is fixedly connected to the outer wall of the telescopic rod (25), and the outer wall of the clamping block (26) is arranged inside the limit block (8); a spring (27) is sleeved on the outer wall of the telescopic rod (25), one end of the spring (27) is fixedly connected to the inside of the base (1), and the other end of the spring (27) is fixedly connected to the outer wall of the clamping block (26); a circle of clamping grooves are symmetrically arranged on the bottom surface of the lifting platform (2), and when the hydraulic rod (7) is started, the end of the limit block (8) is clamped in the corresponding clamping groove on the bottom surface of the lifting platform (2); a protective component is arranged on the outer wall of the base (1).

2. The electrically controlled self-propelled single-arm crane electrically controlled steering chassis according to claim 1, characterized in that: The protection component comprises a rubber plate (22), wherein the rubber plate (22) is fixedly connected to the outer wall of the base (1), and a left-right symmetrical warning light (23) is fixedly connected inside the rubber plate (22).

3. The electrically controlled self-propelled single-arm crane electrically controlled steering chassis according to claim 2, characterized in that: The outer wall of the rubber plate (22) is fixedly connected to a sensor (24), the upper surface of the base (1) is fixedly connected to an electric control box (21), and the electric control box (21) is electrically connected to the sensor (24) and the warning light (23).

4. The electrically controlled self-propelled single-arm crane electrically controlled steering chassis according to claim 1, characterized in that: An electric push rod (11) is fixedly connected inside the base (1), a driving end of the electric push rod (11) is fixedly connected to a moving plate (13), a wheel (14) is rotatably connected inside the moving plate (13), and the wheel (14) is electrically connected to an electric control box (21).

5. The electrically controlled self-propelled single-arm crane electrically controlled steering chassis according to claim 4, characterized in that: The outer wall of the movable plate (13) is slidably connected to the interior of the base (1), the inner wall of the movable plate (13) is slidably connected to a guide rod (12), and the outer wall of the guide rod (12) is fixedly connected to the interior of the base (1).

6. The electrically controlled self-propelled single-arm crane electrically controlled steering chassis according to claim 1, characterized in that: A left-right symmetrical connecting block (15) is fixedly connected to the outer wall of the base (1), and a rotating rod (16) is rotatably connected to the interior of the connecting block (15).

7. The electrically controlled self-propelled single-arm crane electrically controlled steering chassis according to claim 6, characterized in that: The outer wall of the rotating rod (16) is fixedly connected to a supporting rod (17), and the inner wall of the supporting rod (17) is threadedly connected to a screw rod (18).

8. The electrically controlled steering chassis of an electrically controlled self-propelled single-arm crane according to claim 7, characterized in that: The top end of the screw rod (18) is fixedly connected to a rotating handle (19), and the bottom end of the screw rod (18) is fixedly connected to a supporting foot (20).

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