Anti-swing automatic balancing device of intelligent folding arm crane

Abstract

The utility model belongs to the technical field of folding arm cranes, in particular relates to an anti-swing automatic balancing device of an intelligent folding arm crane, and aims to solve the problem that the anti-swing effect is not timely enough due to the fact that the existing automatic balancing devices mostly adopt speed command signals for modifying an electrical control system to continuously limit swing, and response delay exists. According to the scheme, the crane comprises a crane main body, the first folding arm is rotationally mounted at the top of the crane main body; the second folding arm is rotatably mounted on the first folding arm, a mounting groove is formed in the second folding arm, a supporting plate is fixedly mounted at the top of the second folding arm, and pulleys are rotatably mounted in the supporting plate and the mounting groove; in the using process, the balancing weight can be directly positioned and balanced, then the problem of response delay can be effectively avoided, the anti-swing balancing effect is improved, and the anti-swing balancing device is simple in structure and convenient to use.

Description

Technical Field

[0001] This application relates to the field of articulated boom crane technology, and in particular to an intelligent articulated boom crane anti-sway automatic balancing device. Background Technology

[0002] With the rapid development of industrial technology, lifting equipment is being used more and more widely in various industries. Intelligent folding boom cranes, as a highly efficient and flexible lifting device, are gradually becoming a new favorite in the lifting field due to their unique design concept and advanced technology. Crane anti-sway automatic balancing devices are equipment used to improve the operating efficiency and safety of cranes.

[0003] In existing technologies, most automatic balancing devices use modifications to the speed command signal of the electrical control system to continuously limit swaying, which results in a response delay and insufficient anti-sway effect. To address this issue, we propose an intelligent anti-sway automatic balancing device for articulated boom cranes. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing automatic balancing devices, which mostly rely on modifying the speed command signal of the electrical control system to continuously limit swaying, resulting in response delays and insufficient anti-swaying effect. The proposed invention is an intelligent anti-sway automatic balancing device for articulated boom cranes.

[0005] The intelligent articulated boom crane anti-sway automatic balancing device provided in this application adopts the following technical solution:

[0006] The intelligent articulated boom crane anti-sway automatic balancing device includes:

[0007] Crane body;

[0008] The first folding boom is rotatably mounted on top of the crane body;

[0009] The second folding arm is rotatably mounted on the first folding arm. The second folding arm has a mounting groove. A support plate is fixedly mounted on the top of the second folding arm. Both the support plate and the mounting groove are rotatably mounted with pulleys.

[0010] The drive motor is fixedly mounted on the second folding arm. The output shaft of the drive motor is fixedly connected to a take-up roller. A lifting rope is wound around the outside of the take-up roller. A counterweight is fixedly connected to one end of the lifting rope. A hook is fixedly connected to the bottom of the counterweight. The outside of the lifting rope is in contact with the outside of two pulleys.

[0011] The anti-sway balancing mechanism is located on the second folding arm and is used to position and balance the counterweight.

[0012] Furthermore, the anti-sway balancing mechanism includes two rectangular columns, and two symmetrical first sliding grooves are provided at the bottom of the movable seat. The two rectangular columns are slidably installed in the two first sliding grooves respectively. Clamping plates are fixedly installed on the outer side of the two rectangular columns, and the counterweight can be positioned by the two clamping plates.

[0013] Furthermore, a second conductive block is fixedly installed on the top of the movable seat, and a power supply and a first conductive block are fixedly installed on the bottom of the second folding arm. The first conductive block, the power supply, the servo motor, and the second conductive block are connected in sequence. When the first conductive block contacts the second conductive block, the servo motor can be automatically turned on.

[0014] Furthermore, a second sliding hole is provided on the top of the counterweight block, and a pressure rod is slidably installed in the second sliding hole. One end of the pressure rod is fixedly connected to the outside of the sliding rod, and a second spring is sleeved on the outside of the pressure rod. The two ends of the second spring are fixedly connected to the inner wall of the second sliding groove and the outside of the sliding rod, respectively.

[0015] Furthermore, a second sliding groove is provided on one side of the counterweight block, and a sliding rod is slidably installed in the second sliding groove. A stop bar is fixedly installed on the outside of the sliding rod. The stop bar cooperates with the hook. When the stop bar moves vertically downward to a certain position, the stop bar cooperates with the hook to prevent the lifted object from falling off the hook.

[0016] Furthermore, a through hole is provided on one side of the movable seat, which communicates with two first sliding grooves. A bidirectional lead screw is rotatably installed in the through hole and is threadedly connected to two rectangular columns. A servo motor is fixedly installed on the outside of the movable seat, and the output shaft of the servo motor is fixedly connected to one end of the bidirectional lead screw. When the bidirectional lead screw rotates, it can drive the two rectangular columns to move horizontally.

[0017] Furthermore, two first sliding holes are provided on the second folding arm, and guide rods are slidably installed in both first sliding holes. One end of the two guide rods is fixedly connected to the same movable seat, and the movable seat is provided with a movable hole. A first spring is sleeved on the outside of the two guide rods, and the two ends of the first spring are fixedly connected to the top of the second folding arm and the outside of the guide rod, respectively.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. When the servo motor is turned on, the servo motor drives the bidirectional lead screw to rotate. The bidirectional lead screw drives the two rectangular blocks to move closer to each other. The two rectangular blocks drive the two clamping plates to move closer to each other. In this way, the two clamping plates can position and balance the counterweight, avoiding the problem of response delay and improving the anti-shaking balance effect.

[0020] 2. In this scheme, when the counterweight moves vertically upward to a certain position, the pressure rod is squeezed and moves vertically downward. The sliding rod drives the stop bar to move vertically downward. The stop bar cooperates with the hook, which can effectively prevent the hook from disengaging and ensure operational safety.

[0021] This invention enables direct positioning and balancing of the counterweight during use, thereby effectively avoiding response delay and improving anti-shaking balancing effect. It has a simple structure and is easy to use. Attached Figure Description

[0022] Figure 1 This is a front view structural schematic diagram of the intelligent articulated boom crane anti-sway automatic balancing device proposed in this utility model;

[0023] Figure 2 The intelligent articulated boom crane anti-sway automatic balancing device proposed in this utility model Figure 1 Enlarged structural diagram of section A;

[0024] Figure 3 The intelligent articulated boom crane anti-sway automatic balancing device proposed in this utility model Figure 1 Enlarged structural diagram of section B;

[0025] Figure 4 The intelligent articulated boom crane anti-sway automatic balancing device proposed in this utility model Figure 1 An enlarged structural diagram of section C.

[0026] Reference numerals in the attached drawings: 1. Crane body; 2. First folding arm; 3. Second folding arm; 4. Drive motor; 5. Winding roller; 6. Lifting rope; 7. Counterweight; 8. Hook; 9. Support plate; 10. Mounting groove; 11. Pulley; 12. Movable seat; 13. Guide rod; 14. First spring; 15. First conductive block; 16. Second conductive block; 17. Power supply; 18. Servo motor; 19. First slide groove; 20. Bidirectional lead screw; 21. Rectangular column; 22. Clamping plate; 23. Slide rod; 24. Pressure rod; 25. Second spring; 26. Stop bar. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0028] Reference Figures 1-4 The intelligent articulated boom crane anti-sway automatic balancing device includes:

[0029] Crane body 1;

[0030] The first folding arm 2 is rotatably mounted on the top of the crane body 1;

[0031] The second folding arm 3 is rotatably mounted on the first folding arm 2. The second folding arm 3 has an installation groove 10. A support plate 9 is fixedly mounted on the top of the second folding arm 3. Both the support plate 9 and the installation groove 10 are rotatably mounted with pulleys 11.

[0032] Drive motor 4 is fixedly mounted on the second folding arm 3. The output shaft of drive motor 4 is fixedly connected to take-up roller 5. A lifting rope 6 is wound around the outside of take-up roller 5. A counterweight 7 is fixedly connected to one end of the lifting rope 6. A hook 8 is fixedly connected to the bottom of the counterweight 7. The outside of the lifting rope 6 is in contact with the outside of two pulleys 11.

[0033] The anti-sway balancing mechanism is installed on the second folding arm 3 and is used to position and balance the counterweight 7.

[0034] Reference Figures 2-4The anti-sway balancing mechanism includes two rectangular columns 21. The bottom of the movable base 12 has two symmetrical first sliding grooves 19. The two rectangular columns 21 are slidably installed in the two first sliding grooves 19 respectively. Clamping plates 22 are fixedly installed on the outer sides of both rectangular columns 21, allowing the counterweight 7 to be positioned. A second conductive block 16 is fixedly installed on the top of the movable base 12. A power supply 17 and a first conductive block 15 are fixedly installed on the bottom of the second folding arm 3. The first conductive block 15, the power supply 17, and the servo motor are also included. The first conductive block 15 and the second conductive block 16 are connected in sequence. When the first conductive block 15 contacts the second conductive block 16, the servo motor 18 can be automatically turned on. The top of the counterweight 7 is provided with a second sliding hole, and a pressure rod 24 is slidably installed in the second sliding hole. One end of the pressure rod 24 is fixedly connected to the outside of the slide rod 23. A second spring 25 is sleeved on the outside of the pressure rod 24. The two ends of the second spring 25 are fixedly connected to the inner wall of the second sliding groove and the outside of the slide rod 23, respectively. A second sliding groove is provided on one side of the counterweight 7, and a servo motor 25 is slidably installed in the second sliding groove. A sliding rod 23 is provided, and a stop bar 26 is fixedly installed on the outside of the sliding rod 23. The stop bar 26 cooperates with the hook 8. When the stop bar 26 moves vertically downward to a certain position, the stop bar 26 cooperates with the hook 8 to prevent the lifted object from detaching. A through hole is opened on one side of the movable seat 12, which communicates with two first sliding grooves 19. A double-acting screw 20 is rotatably installed in the through hole. The double-acting screw 20 is threadedly connected to two rectangular columns 21. A servo motor 18 is fixedly installed on the outside of the movable seat 12. The output shaft of the servo motor 18 is connected to... One end of the bidirectional lead screw 20 is fixedly connected. When the bidirectional lead screw 20 rotates, it can drive the two rectangular columns 21 to move horizontally. Two first sliding holes are opened on the second folding arm 3. Guide rods 13 are slidably installed in the two first sliding holes. One end of the two guide rods 13 is fixedly connected to the same movable seat 12. Movable holes are opened on the movable seat 12. A first spring 14 is sleeved on the outside of the two guide rods 13. The two ends of the first spring 14 are fixedly connected to the top of the second folding arm 3 and the outside of the guide rod 13, respectively.

[0035] The implementation principle of the intelligent articulated boom crane anti-sway automatic balancing device in this application embodiment is as follows: During use, by turning on the drive motor 4, the winding roller 5 can wind and unwind the lifting rope 6. The object is then connected and lifted via the hook 8. Then, the drive motor 4 is turned on in reverse. When the counterweight 7 moves vertically upward to a certain position, the counterweight 7 drives the movable seat 12 to move vertically upward. The movable seat 12 drives the second conductive block 16 to move vertically upward. When the second conductive block 16 contacts the first conductive block 15, the servo motor 18 is automatically activated. The servo motor 18 drives the bidirectional lead screw 2. When the screw 20 rotates, the two rectangular columns 21 move closer to each other, and the two rectangular columns 21 move the two clamping plates 22 closer to each other. The two clamping plates 22 then clamp and position the counterweight 7 to prevent swaying during the lifting process. At the same time, when the counterweight 7 contacts the movable seat 12, the pressure rod 24 is squeezed and moves vertically downward. The pressure rod 24 moves the sliding rod 23 vertically downward, and the sliding rod 23 moves the stop rod 26 vertically downward. The stop rod 26 cooperates with the hook 8 to effectively prevent disengagement and improve operational safety. Example

[0036] The difference between this embodiment and Embodiment 1 is that: the bottom of the second folding arm 3 and the top of the movable seat 12 are both provided with a third sliding groove. The first conductive block 15 and the second conductive block 16 are respectively slidably installed in the two third sliding grooves. The outer sides of the first conductive block 15 and the second conductive block 16 are fixedly connected with a third spring. One end of the two third springs is fixedly connected to the inner wall of the two third sliding grooves respectively. When the first conductive block 15 and the second conductive block 16 are pressed into contact, the two third springs apply force to the first conductive block 15 and the second conductive block 16 respectively, so that the first conductive block 15 and the second conductive block 16 can be in close contact.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An intelligent articulated boom crane anti-sway automatic balancing device, characterized in that: include: Crane body (1); The first folding arm (2) is rotatably mounted on the top of the crane body (1); The second folding arm (3) is rotatably mounted on the first folding arm (2). The second folding arm (3) has an installation groove (10) and a support plate (9) is fixedly mounted on the top of the second folding arm (3). Both the support plate (9) and the installation groove (10) have pulleys (11) rotatably mounted inside. A drive motor (4) is fixedly mounted on the second folding arm (3). The output shaft of the drive motor (4) is fixedly connected to a take-up roller (5). A lifting rope (6) is wound around the outside of the take-up roller (5). A counterweight (7) is fixedly connected to one end of the lifting rope (6). A hook (8) is fixedly connected to the bottom of the counterweight (7). The outside of the lifting rope (6) contacts the outside of two pulleys (11). The anti-sway balancing mechanism is set on the second folding arm (3) and is used to position and balance the counterweight (7).

2. The intelligent articulated boom crane anti-sway automatic balancing device according to claim 1, characterized in that: The second folding arm (3) has two first sliding holes, and guide rods (13) are slidably installed in the two first sliding holes. One end of the two guide rods (13) is fixedly connected to the same movable seat (12). The movable seat (12) has a movable hole. The outer side of the two guide rods (13) is fitted with a first spring (14). The two ends of the first spring (14) are fixedly connected to the top of the second folding arm (3) and the outer side of the guide rod (13), respectively.

3. The intelligent articulated boom crane anti-sway automatic balancing device according to claim 1, characterized in that: The anti-sway balancing mechanism includes two rectangular columns (21), and two symmetrical first sliding grooves (19) are provided at the bottom of the movable seat (12). The two rectangular columns (21) are slidably installed in the two first sliding grooves (19), and clamps (22) are fixedly installed on the outer side of the two rectangular columns (21).

4. The intelligent articulated boom crane anti-sway automatic balancing device according to claim 3, characterized in that: The movable seat (12) has a through hole on one side, which is connected to two first sliding grooves (19). A bidirectional lead screw (20) is rotatably installed in the through hole. The bidirectional lead screw (20) is threadedly connected to two rectangular columns (21). A servo motor (18) is fixedly installed on the outside of the movable seat (12). The output shaft of the servo motor (18) is fixedly connected to one end of the bidirectional lead screw (20).

5. The intelligent articulated boom crane anti-sway automatic balancing device according to claim 4, characterized in that: The top of the movable seat (12) is fixedly installed with a second conductive block (16), and the bottom of the second folding arm (3) is fixedly installed with a power supply (17) and a first conductive block (15). The first conductive block (15), the power supply (17), the servo motor (18) and the second conductive block (16) are connected in sequence.

6. The intelligent articulated boom crane anti-sway automatic balancing device according to claim 5, characterized in that: The counterweight (7) has a second groove on one side, and a slide rod (23) is slidably installed in the second groove. A stop bar (26) is fixedly installed on the outside of the slide rod (23), and the stop bar (26) cooperates with the hook (8).

7. The intelligent articulated boom crane anti-sway automatic balancing device according to claim 6, characterized in that: The counterweight (7) has a second sliding hole at its top. A pressure rod (24) is slidably installed in the second sliding hole. One end of the pressure rod (24) is fixedly connected to the outside of the slide rod (23). A second spring (25) is sleeved on the outside of the pressure rod (24). The two ends of the second spring (25) are fixedly connected to the inner wall of the second slide groove and the outside of the slide rod (23), respectively.

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