CN221700963U - Multisection type straight arm lorry-mounted crane - Google Patents

Abstract

The utility model discloses a multi-section straight-arm truck crane, comprising a frame, one side of the frame is rotatably connected to a support arm, the top of the support arm is rotatably connected to a lifting arm, the extended end of the lifting arm is fixedly connected to a connecting block, a second steel wire rope is arranged inside the connecting block, the bottom end of the second steel wire rope is fixedly connected to a weighing block, the bottom end of the weighing block is fixedly connected to a connecting ring, the bottom end of the connecting ring is fixedly connected to a fixed block; one side of the fixed block is fixedly connected to a connecting shaft, one side of the connecting shaft is rotatably connected to a first steel wire rope, one end of the first steel wire rope is wound with a winding roller. The utility model is provided with a weighing block, when the object is lifted, the weight of the lifted object can be weighed by the weighing block, and the lifting work can be carried out when the lifting weight range is reached, and it can be stopped in time if it exceeds the bearing range of the crane to prevent danger.

Description

A multi-section straight-arm truck-mounted crane

Technical Field

The utility model relates to the technical field of truck mounted cranes, in particular to a multi-section straight arm truck mounted crane.

Background Art

Cranes refer to multi-action lifting machinery that can vertically lift and horizontally transport heavy objects within a certain range. There are tire cranes, crawler cranes and bridge cranes. They are widely used in engineering construction and factories. However, the existing telescopic devices of truck cranes have complex structures and high costs, which increases the cost of truck cranes. Therefore, technical improvements are urgently needed.

The cranes in the prior art have defects when in use. First, during the lifting process, the wire rope is extended and the hook is hung. When the objects are lifted, they need to be manually pulled to reduce the swing and prevent danger. However, the manual operation force is limited, and different dangers still occur. At the same time, when the lifting weight is greater than the load-bearing weight of the crane, it will tilt, causing danger, which is inconvenient to use.

Summary of the invention

The utility model aims to provide a multi-section straight-arm truck crane, which can retract and release a first steel wire rope through the rotation of a winding roller to achieve the required length control, and the first steel wire rope can be stretched inward to the object during the lifting process to prevent it from shaking outward during the lifting process.

To achieve the above object, a multi-section straight-arm truck crane is provided, comprising: a frame, one side of the frame is rotatably connected to a support arm, the top end of the support arm is rotatably connected to a lifting arm, the extended end of the lifting arm is fixedly connected to a connecting block, a second steel wire rope is arranged inside the connecting block, the bottom end of the second steel wire rope is fixedly connected to a weighing block, the bottom end of the weighing block is fixedly connected to a connecting lifting ring, and the bottom end of the connecting lifting ring is fixedly connected to a fixing block;

One side of the fixed block is fixedly connected to a connecting shaft, one side of the connecting shaft is rotatably connected to a first steel wire rope, and one end of the first steel wire rope is wound around a winding roller.

One end of the bottom of the lifting arm is fixedly connected with a guide wheel, and the outer portion of the guide wheel is rotationally matched with the first steel wire rope.

A support plate is fixedly connected to the middle of the inner side of the support arm, and a drive motor is fixedly connected to the upper side of the support plate.

The driving end of the driving motor is fixedly connected to the winding roller.

The four corners of the frame are all fixedly connected with hydraulic cylinders, and the extended ends of the hydraulic cylinders are fixedly connected with supporting sleeve blocks.

The middle part of the supporting sleeve block is fixedly connected with a fitting disk, and both ends of the fitting disk are fixedly connected with an electric telescopic rod.

The outer side of the electric telescopic rod is fixedly connected with an extension support seat.

The bottom end of the fixing block is fixedly connected with a hook.

Beneficial Effects

1. The utility model is provided with a hydraulic cylinder, an electric telescopic rod, an extension support seat and a support sleeve block. The frame can be lifted up by extending the hydraulic cylinder, and the ground is supported by the hydraulic cylinder to improve stability and load-bearing effect and reduce damage to the frame. At the same time, the electric telescopic rod is extended, and the extension support seat can be extended after extension, which can expand the support area of the support sleeve block, increase the force-bearing area, and increase safety in use.

2. The utility model is provided with a driving motor, a winding roller and a first steel wire rope. When the hook is extended and retracted, the driving motor rotates simultaneously. Through the rotation of the winding roller, the first steel wire rope can be retracted and released to achieve the required length control. The first steel wire rope can be stretched inward to the object during the lifting process to prevent it from shaking outward during the lifting process, thereby causing collision and dangerous problems.

3. The utility model is provided with a weighing block, during the process of lifting an object, the weight of the lifted object can be weighed by the weighing block, and the lifting work can be carried out when the lifting weight reaches the lifting weight range, and if it exceeds the bearing range of the crane, it can be stopped in time to prevent danger.

Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a side structural diagram of a multi-section straight-arm truck-mounted crane according to the present invention.

FIG. 2 is a three-dimensional structural diagram of a driving motor of a multi-section straight-arm truck-mounted crane according to the present invention.

FIG3 is an enlarged structural diagram of point A in FIG1 of the present invention.

FIG4 is a cross-sectional structural diagram of a support sleeve block of a multi-section straight-arm truck-mounted crane according to the present invention.

Legend:

1. Frame; 2. Connecting block; 3. Lifting arm; 4. Guide wheel; 5. Support arm; 6. Hydraulic cylinder; 7. Winding roller; 8. First steel wire rope; 9. Driving motor; 10. Weighing block; 11. Fixed block; 12. Hook; 13. Connecting shaft; 14. Connecting lifting ring; 15. Second steel wire rope; 16. Laminating plate; 17. Extension support seat; 18. Support sleeve block; 19. Electric telescopic rod.

DETAILED DESCRIPTION

This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

1-4, the utility model embodiment of a multi-section straight arm truck crane comprises: a frame 1, one side of the frame 1 is rotatably connected to a support arm 5, through the rotation of the support arm 5, the rotation and the cooperation with the lifting arm 3, so as to achieve the extension and rotation effect, convenient for lifting the object, the hook 12 is hung with the object, the top of the support arm 5 is rotatably connected to the lifting arm 3, the extended end of the lifting arm 3 is fixedly connected to the connecting block 2, the interior of the connecting block 2 is provided with a second steel wire rope 15, the bottom end of the second steel wire rope 15 is fixedly connected to a weighing block 10, the weight of the lifted object is weighed by the weighing block 10, and the lifting work is carried out when the weight reaches the lifting weight range, and the lifting work can be stopped in time when it exceeds the bearing range of the crane to prevent danger, and the bottom end of the weighing block 10 is fixedly connected to There is a connecting ring 14, through which the weighing block 10 and the fixed block 11 can be connected. The bottom end of the connecting ring 14 is fixedly connected to the fixed block 11. The bottom end of the lifting arm 3 is fixedly connected to the guide wheel 4, through which the first steel wire rope 8 can be rotated in coordination with the retraction and release, and the angle can be rotated at the same time to increase the stability of use. The outside of the guide wheel 4 is rotated in coordination with the first steel wire rope 8. A support plate is fixedly connected to the middle of the inner side of the support arm 5, and a drive motor 9 is fixedly connected to the top of the support plate. When the hook 12 is extended and recovered, the drive motor 9 rotates in coordination. Through the rotation of the winding roller 7, the first steel wire rope 8 can be retracted and released to achieve the desired length control. The driving end of the drive motor 9 is fixedly connected to the winding roller 7.

A connecting shaft 13 is fixedly connected to one side of the fixed block 11, and a first steel wire rope 8 is rotatably connected to one side of the connecting shaft 13. The first steel wire rope 8 can stretch the object inward during the lifting process to prevent it from shaking outward during the lifting process, thereby causing collision and dangerous problems. A winding roller 7 is wound around one end of the first steel wire rope 8. The four corners of the frame 1 are fixedly connected to the hydraulic cylinder 6. By moving the frame 1 to the required lifting position and then extending the hydraulic cylinder 6, the frame 1 can be lifted up, and the ground is supported by the hydraulic cylinder 6 to improve stability and load-bearing function. The extended end of the hydraulic cylinder 6 is fixedly connected to the support sleeve block 18, and the middle part of the support sleeve block 18 is fixedly connected to the fitting disk 16, and both ends of the fitting disk 16 are fixedly connected to the electric telescopic rod 19. The electric telescopic rod 19 is extended, and the extension support seat 17 can be extended after the extension, so as to expand the support area of the support sleeve block 18. The outer side of the electric telescopic rod 19 is fixedly connected to the extension support seat 17, and the bottom end of the fixed block 11 is fixedly connected to the hook 12.

Working principle: When in use, first move the frame 1 to the required lifting position, then extend the hydraulic cylinder 6 to lift the frame 1, support the ground with the hydraulic cylinder 6, improve stability and load-bearing effect, and reduce damage to the frame 1. At the same time, the electric telescopic rod 19 extends, and after extension, the extension support seat 17 can be extended, and the support area of the support sleeve block 18 can be expanded. Then, the support arm 5 rotates and cooperates with the lifting arm 3 after rotation, so as to achieve extension and rotation, facilitate the lifting of objects, and the hook 12 is connected with the objects. When the hook 12 is extended and recovered, the driving motor 9 is rotated simultaneously. Through the rotation of the winding roller 7, the first steel wire rope 8 can be retracted and released to achieve the required length control. When the object is lifted, the weight of the lifted object can be weighed by the weighing block 10. If the lifting weight is within the lifting weight range, the lifting work can be carried out. If it is greater than the crane's bearing range, it can be stopped in time to prevent danger. The first steel wire rope 8 can stretch the object inward during the lifting process to prevent it from shaking outward during the lifting process, thereby causing collision and dangerous problems.

The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims (8)

1. A multi-section straight arm lorry-mounted crane comprising: the lifting device is characterized in that one side of the frame (1) is rotationally connected with a supporting arm (5), the top end of the supporting arm (5) is rotationally connected with a lifting arm (3), the extending end of the lifting arm (3) is fixedly connected with a connecting block (2), a second steel wire rope (15) is arranged in the connecting block (2), the bottom end of the second steel wire rope (15) is fixedly connected with a weighing block (10), the bottom end of the weighing block (10) is fixedly connected with a connecting lifting ring (14), and the bottom end of the connecting lifting ring (14) is fixedly connected with a fixing block (11);

One side fixedly connected with connecting axle (13) of fixed block (11), one side rotation of connecting axle (13) is connected with first wire rope (8), the one end winding of first wire rope (8) has wind-up roll (7).

2. The multi-section straight arm lorry-mounted crane according to claim 1, wherein one end of the bottom of the crane arm (3) is fixedly connected with a guide wheel (4), and the outer part of the guide wheel (4) is in running fit with the first steel wire rope (8).

3. The multi-section straight arm lorry-mounted crane according to claim 1, characterized in that a supporting plate is fixedly connected to the middle of the inner side of the supporting arm (5), and a driving motor (9) is fixedly connected to the upper side of the supporting plate.

4. A multi-section straight arm lorry-mounted crane according to claim 3, characterized in that the driving end of the driving motor (9) is fixedly connected with the wind-up roll (7).

5. The multi-section straight arm lorry-mounted crane according to claim 1, wherein the four corners of the frame (1) are fixedly connected with hydraulic cylinders (6), and the extending ends of the hydraulic cylinders (6) are fixedly connected with supporting sleeve blocks (18).

6. The multi-section straight arm lorry-mounted crane according to claim 5, wherein the middle parts of the supporting sleeve blocks (18) are fixedly connected with attaching discs (16), and two ends of each attaching disc (16) are fixedly connected with electric telescopic rods (19).

7. The multi-section straight arm lorry-mounted crane according to claim 6, wherein the outer side of the electric telescopic rod (19) is fixedly connected with an extension supporting seat (17).

8. The multi-section straight arm lorry-mounted crane according to claim 1, wherein the bottom end of the fixed block (11) is fixedly connected with a hook (12).