Movable double-cantilever telescopic crane

Abstract

The utility model relates to the technical field of engineering machinery, and discloses a movable double-cantilever telescopic crane, which comprises a mechanical arm, and is characterized in that the bottom end of the mechanical arm is fixedly connected with a take-up reel, the bottom end of the take-up reel is connected with a connecting wire in a sliding manner, the bottom end of the connecting wire is fixedly connected with a wire passing ring, and the bottom end of the wire passing ring is connected with a lifting rope. The bottom end of the wire passing ring is fixedly connected with a fixing wire ring, the bottom end of the fixing wire ring is fixedly connected with a supporting wire, the bottom end of the supporting wire is fixedly connected with a clamping hook, the bottom end of the clamping hook is rotationally connected with a pushing assembly, and the outer portion of the mechanical arm is fixedly connected with an oil inlet mechanism. According to the utility model, the pulling of the take-up reel drives the whole pushing assembly to move upwards, and the pushing assembly starts to incline, so that the clamping plate is pushed into the clamping hook by utilizing the inclination of the pushing assembly, and potential safety hazards caused by human factors in manual operation are eliminated, so that the operation time is shortened, and the operation smoothness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a mobile double-cantilever telescopic crane. Background Art

[0002] A mobile double-cantilever telescopic crane is a mechanical device used for lifting and moving heavy objects. It has a fairly strong lifting capacity, enabling it to handle heavy objects. The lifting capacity usually varies according to different models and uses. The operator can control the movement of the crane through a console or remote control. Some advanced systems may also have automation functions.

[0003] After searching, a Chinese patent disclosed a telescopic boom crane (publication number CN202864746U). The patented technology includes a telescopic boom frame and an auxiliary lifting winch. The telescopic boom frame includes a telescopic arm and a base arm, and also includes: a rotating bracket, the rotating bracket is connected with the base arm of the telescopic boom frame at its fixed end; a variable-length oil cylinder, arranged between the rotating bracket and the base arm, so that the rotating bracket rotates around its fixed end in a vertical plane; the auxiliary lifting winch has an ultra-lifting rope, and the movable end of the rotating bracket has a guide rope wheel. The ultra-lifting rope is connected to any telescopic arm of the telescopic boom frame after passing around the guide rope wheel. The auxiliary lifting winch of the utility model is arranged on the turntable of the crane. The auxiliary lifting winch has an ultra-lifting pull rope. The movable end of the rotating bracket only needs to be provided with a guide rope wheel to realize the ultra-lifting function. The structure is simple and compact, and it is convenient to transport, install and disassemble. However, it can solve the problem that the lower lifting buckle of the prior art cannot automatically unload the goods, which reduces the efficiency of the lifting operation and requires manual operation for unloading. If the goods are piled too high, the manual hook may accidentally slip, posing a safety hazard. Utility Model Content

[0004] The utility model aims to improve the situation in the prior art where goods are piled too high and manual hook removal is required, which may cause the manual hook removal to accidentally slip and fall, thus posing a safety hazard, and a mobile double-cantilever telescopic crane is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mobile double-cantilever telescopic crane, including a mechanical arm, characterized in that: the bottom end of the mechanical arm is fixedly connected to a wire take-up drum, the bottom end of the wire take-up drum is slidably connected to a connecting wire, the bottom end of the connecting wire is fixedly connected to a wire passing ring, the bottom end of the wire passing ring is fixedly connected to a fixed wire ring, the bottom end of the fixed wire ring is fixedly connected to a supporting wire, the bottom end of the supporting wire is fixedly connected to a hook, the bottom end of the hook is rotatably connected to a pushing component, and the outside of the mechanical arm is fixedly connected to an oil inlet mechanism.

[0006] As a further description of the above technical solution:

[0007] The pushing assembly includes a rotating shell, the outside of which is rotatably connected to the bottom end of the hook, the inside of which is slidably connected to a limiting ring, one end of the limiting ring close to the fixed wire ring is fixedly connected to a thrust spring, and the other end of the thrust spring is fixedly connected to the inside of the rotating shell.

[0008] As a further description of the above technical solution:

[0009] The oil inlet mechanism includes a fixed ring, the outside of the fixed ring is fixedly connected to the outside of the mechanical arm, the outside of the mechanical arm is slidably connected to a rotating ring, the outside of the rotating ring is fixedly connected to a fixed shell, the inside of the fixed shell is slidably connected to a limiting block, the inner bottom end of the fixed shell is fixedly connected to an outward push spring, the inside of the limiting block is fixedly connected to an injection column, and the inside of the injection column is provided with a through groove.

[0010] As a further description of the above technical solution:

[0011] The bottom end of the push-out spring is fixedly connected to the bottom end of the limit block, and the outside of the injection column is slidably connected to the inside of the fixing ring.

[0012] As a further description of the above technical solution:

[0013] The outside of the injection column is fixedly connected with a limiting block, and the outside of the injection column is fixedly connected with a pulling ring.

[0014] As a further description of the above technical solution:

[0015] The injection column is internally slidably connected with a head, the outside of the head is fixedly connected with a connecting movable rod, and the other end of the connecting movable rod is fixedly connected to the outside of the injection column.

[0016] As a further description of the above technical solution:

[0017] A linkage column is fixedly connected inside the limiting ring, and the top end of the linkage column is rotatably connected to the bottom end of the fixed wire ring.

[0018] As a further description of the above technical solution:

[0019] The bottom end of the pushing component is rotatably connected with a clamping plate, and the top end of the clamping plate is rotatably connected to the inside of the clamping hook.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, by fixing the wire ring, the wire passing ring, the hook and other structures, the pulling of the wire reel drives the pushing component to move upward as a whole, so that the pushing component begins to tilt, and the inclination of the pushing component is used to push the card plate into the interior of the hook. Automatic lowering can greatly improve the efficiency of the lifting operation, and it eliminates the safety hazards caused by human factors in manual operation, thereby reducing the operation time and increasing the fluency of the operation.

[0022] In the utility model, through the fixed shell, the limit block, the push-out spring and other structures, the pulling ring is rotated into the appropriate groove of the fixed ring, and the lubricating oil is opened to enter. The lubricating oil can form a lubricating film on the surface of the mechanical parts, reduce the direct contact between the parts, thereby reducing friction and wear, which helps to extend the service life of the mechanical equipment and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a mobile double-cantilever telescopic crane proposed in the utility model;

[0024] Figure 2 A schematic diagram of a hook in a mobile double-cantilever telescopic crane proposed in the utility model;

[0025] Figure 3 It is a cross-sectional view of a rotating housing in a mobile double-cantilever telescopic crane proposed in the utility model;

[0026] Figure 4 A schematic diagram of a mechanical arm in a mobile double-cantilever telescopic crane proposed in the utility model;

[0027] Figure 5 This is a cross section of a rotating ring in a mobile double-cantilever telescopic crane proposed in the utility model;

[0028] Figure 6 The utility model is a cross-sectional view of a fixed shell in a mobile double-cantilever telescopic crane.

[0029] Legend:

[0030] 1. Robotic arm; 2. Wire reel; 3. Connecting wire; 4. Wire loop; 5. Fixed wire loop; 6. Support wire; 7. Hook; 8. Pushing assembly; 801. Rotating housing; 802. Limiting ring; 803. Thrust spring; 804. Linkage column; 9. Clamping plate; 10. Oil inlet mechanism; 1001. Fixed ring; 1002. Rotating ring; 1003. Fixed housing; 1004. Limiting block; 1005. Push-out spring; 1006. Injection column; 1007. Through slot; 1008. Limiting block; 1009. Pulling ring; 1010. Head; 1011. Connecting movable rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 - Figure 3 The utility model provides an embodiment of a mobile double-cantilever telescopic crane, comprising a mechanical arm 1, a wire take-up drum 2 is fixedly connected to the bottom end of the mechanical arm 1, a connecting wire 3 is slidably connected to the bottom end of the wire take-up drum 2, and the internal fixation is enlarged. The bottom end of the connecting wire 3 is fixedly connected to a wire passing ring 4, the bottom end of the wire passing ring 4 is fixedly connected to a fixed wire ring 5, the bottom end of the fixed wire ring 5 is fixedly connected to a supporting wire 6, the bottom end of the supporting wire 6 is fixedly connected to a hook 7, the bottom end of the hook 7 is rotatably connected to a pushing component 8, and the outside of the mechanical arm 1 is fixedly connected to an oil inlet mechanism 10, so that when the connecting wire 3 is pulled by the wire take-up drum 2, the connecting wire 3 pulls the wire passing ring 4 and the fixed wire ring 5, and the pushing component 8 is tilted upward because of the pulling of the fixed wire ring 5, so that the pushing component 8 is tilted so that the card plate 9 is pressed, thereby completing the card plate 9 in The internal engagement of the hook 7 facilitates the lifting of the goods. The pushing component 8 includes a rotating shell 801. The external rotating shell 801 is rotatably connected to the bottom end of the hook 7. The internal sliding connection of the rotating shell 801 is a limit ring 802. The end of the limit ring 802 close to the fixed wire ring 5 is fixedly connected to a thrust spring 803. The other end of the thrust spring 803 is fixedly connected to the inside of the rotating shell 801 to prevent the thrust spring 803 from popping out of the rotating shell 801. The inside of the limit ring 802 is fixedly connected to a linkage column 804. The top end of the linkage column 804 is rotatably connected to the bottom end of the fixed wire ring 5. The bottom end of the pushing component 8 is rotatably connected to a card plate 9. The top end of the card plate 9 is rotatably connected to the inside of the hook 7, so that the thrust spring 803 pushes the linkage column 804 downward, thereby increasing the engagement stability of the card plate 9.

[0033] Reference Figure 4 - Figure 6The oil inlet mechanism 10 includes a fixed ring 1001, the outside of the fixed ring 1001 is fixedly connected to the outside of the mechanical arm 1, the outside of the mechanical arm 1 is slidably connected to a rotating ring 1002, the outside of the rotating ring 1002 is fixedly connected to a fixed shell 1003, the inside of the fixed shell 1003 is slidably connected to a limiting block 1004, the internal fixation of the fixed shell 1003 is increased, and the internal bottom end of the fixed shell 1003 is fixedly connected to an outward push spring 1005, which is convenient for pulling the injection column 1006 and then rotating the injection column 1006, so that the injection column 1006 can enter oil at a suitable notch of the fixed ring 1001, thereby reducing the friction of the internal structure, the injection column 1006 is fixedly connected to the inside of the limiting block 1004, and a through groove 1007 is provided inside the injection column 1006, and the bottom end of the outward push spring 1005 is fixedly connected to the injection column 1006. The injection column 1006 is fixedly connected to the bottom end of the limit block 1004, and the outside of the injection column 1006 is slidably connected to the inside of the fixed ring 1001 to facilitate the internal oil intake. The outside of the injection column 1006 is fixedly connected with a limit block 1008 to prevent the inside of the injection column 1006 from entering the inside of the fixed shell 1003, thereby making it difficult to pull out the injection column 1006. The outside of the injection column 1006 is fixedly connected with a pulling ring 1009 to facilitate external rotation. The inside of the injection column 1006 is slidably connected with a head 1010, and the outside of the head 1010 is fixedly connected with a connecting movable rod 1011. The other end of the connecting movable rod 1011 is fixedly connected to the outside of the injection column 1006 to prevent dust from entering the inside of the equipment and causing the equipment to be blocked during operation due to dust.

[0034] Working principle: the wire take-up reel 2 pulls the connecting wire 3, so that the connecting wire 3 pulls the wire loop 4 and the fixed wire loop 5, so that the fixed wire loop 5 drives the pushing component 8 to tilt, so that the pushing component 8 drives the card plate 9 to rotate toward the inside of the hook 7, because the pulling force of the fixed wire loop 5 drives the supporting wire 6 at the same time, so that the hook 7 and the fixed wire loop 5 straighten the supporting wire 6. At this time, the pushing component 8 is subjected to the second force, which increases the inclination of the pushing component 8. At the same time, the limit ring 802 drives the linkage column 804 to move downward, so that the limit ring 802 is about to push the card plate 9 to move downward, and the support wire 6 will pull the limit ring 802 to complete the pressure of the third force, strengthen the clamping of the goods, and unloading is only The opposite operation is required to move the entire take-up reel 2 to complete the unloading. Automatic lowering can greatly improve the efficiency of the lifting operation. It eliminates the human factor in manual operation, thereby reducing the operation time and increasing the smoothness of the operation. First, pull the injection column 1006, and then rotate the injection column 1006 so that the injection column 1006 is inserted into the interior of the fixed ring 1001, thereby pouring the lubricating oil into the interior of the through groove 1007, and the oil flows into the interior of the joint of the mechanical arm 1 through the fixed ring 1001. The lubricating oil can form a lubricating film on the surface of the mechanical parts, reduce the direct contact between the parts, and thus reduce friction and wear, which helps to extend the service life of the mechanical equipment and reduce maintenance costs.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mobile double-cantilever telescopic crane, comprising a mechanical arm (1), characterized in that: The bottom end of the mechanical arm (1) is fixedly connected to a wire take-up drum (2), the bottom end of the wire take-up drum (2) is slidably connected to a connecting wire (3), the bottom end of the connecting wire (3) is fixedly connected to a wire passing ring (4), the bottom end of the wire passing ring (4) is fixedly connected to a fixed wire ring (5), the bottom end of the fixed wire ring (5) is fixedly connected to a supporting wire (6), the bottom end of the supporting wire (6) is fixedly connected to a hook (7), the bottom end of the hook (7) is rotatably connected to a pushing component (8), and the outside of the mechanical arm (1) is fixedly connected to an oil inlet mechanism (10).

2. A mobile double-cantilever telescopic crane according to claim 1, characterized in that: The pushing assembly (8) comprises a rotating shell (801), the outside of the rotating shell (801) is rotatably connected to the bottom end of the hook (7), the inside of the rotating shell (801) is slidably connected to a limit ring (802), one end of the limit ring (802) close to the fixed wire loop (5) is fixedly connected to a thrust spring (803), and the other end of the thrust spring (803) is fixedly connected to the inside of the rotating shell (801).

3. The mobile double-cantilever telescopic crane according to claim 1, characterized in that: The oil inlet mechanism (10) comprises a fixed ring (1001), the outside of the fixed ring (1001) is fixedly connected to the outside of the mechanical arm (1), the outside of the mechanical arm (1) is slidably connected to a rotating ring (1002), the outside of the rotating ring (1002) is fixedly connected to a fixed shell (1003), the inside of the fixed shell (1003) is slidably connected to a limit block (1004), the inside bottom of the fixed shell (1003) is fixedly connected to an outward push spring (1005), the inside of the limit block (1004) is fixedly connected to an injection column (1006), and the inside of the injection column (1006) is provided with a through groove (1007).

4. The mobile double-cantilever telescopic crane according to claim 3, characterized in that: The bottom end of the push-out spring (1005) is fixedly connected to the bottom end of the limit block (1004), and the outside of the injection column (1006) is slidably connected to the inside of the fixing ring (1001).

5. The mobile double-cantilever telescopic crane according to claim 4, characterized in that: The outside of the injection column (1006) is fixedly connected with a limiting block (1008), and the outside of the injection column (1006) is fixedly connected with a pulling ring (1009).

6. The mobile double-cantilever telescopic crane according to claim 5, characterized in that: The injection column (1006) is internally slidably connected to a head (1010), the head (1010) is externally fixedly connected to a connecting movable rod (1011), and the other end of the connecting movable rod (1011) is fixedly connected to the outside of the injection column (1006).

7. The mobile double-cantilever telescopic crane according to claim 2, characterized in that: A linkage column (804) is fixedly connected inside the limiting ring (802), and the top end of the linkage column (804) is rotatably connected to the bottom end of the fixed wire ring (5).

8. The mobile double-cantilever telescopic crane according to claim 7, characterized in that: The bottom end of the pushing component (8) is rotatably connected to a clamping plate (9), and the top end of the clamping plate (9) is rotatably connected to the inside of the clamping hook (7).

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