Crane capable of preventing unbalance

Abstract

The utility model discloses a crane capable of preventing unbalance, which comprises a trailer, a crane body is arranged on the trailer, a ground fixing mechanism is arranged on the outer side of the trailer, the ground fixing mechanism comprises a hydraulic cylinder, a mounting shell, a motor, a taper sleeve, a spiral block and an auxiliary mechanism, the hydraulic cylinder is mounted on the outer side of the trailer, the mounting shell is mounted at the bottom end of the hydraulic cylinder, and the motor is mounted on the mounting shell. The motor is installed in the installation shell, the taper sleeve is rotationally installed on the bottom face of the installation sleeve and connected with the output end of the motor, the hydraulic cylinder is driven to work through the hydraulic system, the installation shell is pushed downwards, preliminary contact and fixation with the ground are achieved, the taper sleeve is driven to rotate after the motor is started, and a spiral block on the taper sleeve is screwed into soil along a spiral path. A rotating handle drives a center rod to rotate, a rotating sleeve rotates along with the center rod, then an inclined block is driven to move, the inclined block is matched with a contact block, the contact block pushes a sliding rod to slide, the sliding rod moves to push an inserting rod to be inserted into soil, and final fixing of the ground fixing mechanism is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and more particularly to a crane capable of preventing imbalance. Background Art

[0002] In lifting operations, especially on unstable ground, the stability of the equipment is crucial. Many lifting equipment may become unbalanced during operation due to uneven ground or external environmental factors, especially on soft ground such as the bottom of the soil. Due to the uneven distribution of soil bearing capacity, the crane is prone to sinking or tilting on one side when the load is heavy or the operating angle is large, thus affecting the safety of operation. If this imbalance is not corrected in a timely and effective manner, it may cause serious damage to the equipment, even casualties of operators or damage to cargo;

[0003] In addition, if the crane fails to restore its balance in time when it is unbalanced, it may move excessively after the drive structure fails. Especially during operation, if it is improperly controlled or effective measures are not taken to adjust the balance, the equipment may swing violently or overturn due to errors or external forces. Such movement will not only cause damage to the equipment itself, but may also cause the hoisted load to get out of control, increasing the risk at the work site. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a crane that prevents imbalance, so as to solve the technical problem that the lifting equipment mentioned in the background technology may become unbalanced during operation due to uneven ground or the influence of external environmental factors.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane to prevent imbalance, including a trailer, a crane body is provided on the trailer, a ground fixing mechanism is arranged on the outside of the trailer, the ground fixing mechanism includes a hydraulic cylinder, a mounting shell, a motor, a cone sleeve, a spiral block and an auxiliary mechanism, the hydraulic cylinder is installed on the outside of the trailer, the mounting shell is installed on the bottom end of the hydraulic cylinder, the motor is installed in the mounting shell, the cone sleeve is rotatably installed on the bottom surface of the mounting sleeve and is connected to the output end of the motor, the spiral block is provided with multiple groups installed on the outer wall of the cone sleeve, the auxiliary mechanism includes a center rod, a rotating sleeve, a turning handle, an inclined block, a sliding sleeve, a sliding rod, a contact block and an insertion rod, the center rod is rotatably installed in the cone sleeve, the rotating sleeve is installed on the outside of the center rod, the turning handle is installed on the top of the center rod and is slidably connected with the cone sleeve, the inclined block is provided with multiple groups installed on the outer wall of the rotating sleeve, the sliding sleeve is provided with multiple groups installed on the cone sleeve, the sliding rod slides in multiple groups of sliding sleeves, the contact block is installed on the top of multiple groups of sliding rods, and the insert is installed on the top of multiple groups of sliding rods and is slidably connected with the sliding sleeve.

[0008] The utility model is further configured that the ground fixing mechanism is provided with multiple groups which are respectively arranged outside the trailer. This configuration can improve the supporting force of the ground fixing mechanism at different positions, ensure the stability of the trailer under different working conditions, and enhance the anti-overturning ability of the crane during operation.

[0009] The utility model is further configured that the outer sides of the plurality of groups of the inclined blocks are provided with limit grooves. By providing the limit grooves on the outer sides of the inclined blocks, the moving range of the inclined blocks can be effectively limited, and the inclined blocks can be prevented from being deflected due to excessive force during operation, thereby improving the stability and safety of the overall structure.

[0010] The utility model is further configured that multiple groups of contact blocks and the outer sides of the limit grooves are all provided with rounded corners. The rounded corner design can reduce the friction resistance between the contact blocks and the limit grooves, avoid wear or stagnation caused by hard contact, improve the smoothness of movement and work efficiency, and extend the service life of parts.

[0011] The utility model is further configured such that a connection plate is installed at the bottom end of each of the plurality of groups of the plug rods, and a reset spring is connected between each of the plurality of groups of the connection plates and the sliding sleeve. The reset spring can ensure that the plug rod can stably maintain its position after being fixed, and can automatically reset when necessary, which is convenient for operation and maintenance, and improves the overall convenience and safety of use.

[0012] The utility model is further configured that the plurality of groups of the insert rods are all configured as polygons and are slidably connected to the sleeve. The polygonal insert rod design can increase the contact surface with the sleeve, improve the stability of the connection, reduce looseness caused by rotation or vibration, and thus improve the firmness and durability of the overall structure.

[0013] The utility model is further configured such that the crane body is provided with a cable, the crane body is provided with a quick stop mechanism, the quick stop mechanism includes a limit block, a mounting sleeve, an inclined groove, an inclined slider, a clamp block, a slide groove, a connecting sleeve, a push ring and a tension spring, the limit block is installed on the outside of the crane body, the mounting sleeve is installed on the limit block, the inclined groove is provided with multiple groups distributed on the inner wall of the mounting sleeve, the inclined slider slides in multiple groups of inclined grooves, the clamp block is installed on the inner side of multiple groups of inclined sliders, the slide groove is provided with multiple groups distributed on the mounting sleeve, the connecting sleeve slides to connect multiple groups of slide grooves, the push ring is installed on the inner side of the connecting sleeve, and the two ends of the tension spring are respectively connected to the mounting sleeve and the connecting sleeve. This design can accurately control the tightness of the cable, prevent the cable from excessive sliding or sudden loosening, thereby ensuring the stability of the cable during the crane hoisting process, and avoiding the danger of equipment loss of control or cargo falling.

[0014] The utility model is further configured such that friction pads are installed on the inner sides of the multiple groups of clamping blocks, and the cables are inserted between the multiple groups of clamping blocks. The provision of friction pads can increase the friction between the clamping blocks and the cables, effectively preventing the cables from sliding during the lifting process, thereby ensuring that the cables are quickly fixed in an emergency, and enhancing the safety and reliability of the quick stop mechanism.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a crane for preventing imbalance, which has the following beneficial effects:

[0017] 1. The beneficial effect of the ground fixing mechanism is that the hydraulic system drives the hydraulic cylinder to push the mounting shell downward to achieve initial contact and fixation with the ground. After the motor is started, it drives the cone sleeve to rotate, and the spiral block on the cone sleeve is screwed into the soil along the spiral path to form a firm support for the ground. This design can effectively enhance the stability of the crane during operation and prevent instability caused by external factors or uneven loads. At the same time, the multi-group distribution setting of the ground fixing mechanism can ensure that the support force of the crane in multiple directions is evenly distributed, thereby improving the overall anti-overturning ability.

[0018] 2. The beneficial effect of the auxiliary mechanism is reflected in its ability to further adjust and fix the ground-fixing mechanism. The center rod is driven to rotate by the turning handle, and the rotating sleeve rotates accordingly, thereby driving the inclined block to move. The cooperation between the inclined block and the contact block enables the contact block to push the slide bar to slide. The movement of the slide bar simultaneously pushes the insertion rod to insert into the soil, completing the final fixation of the ground-fixing mechanism. The setting of the reset spring ensures that the insertion rod can remain stable after fixation, and facilitates subsequent reset operations. The rounded corner design of the contact block and the limit groove reduces the friction resistance during the sliding process, further improving the operating efficiency and reliability of the auxiliary mechanism. This design can achieve precise adjustment of the ground-fixing mechanism and ensure the safety and stability of the fixing process.

[0019] 3. The beneficial effect of the quick stop mechanism is mainly reflected in the effective control and protection function of the crane on the cable during the lifting process. When the cable is in a non-working state, the user can manually operate the connecting sleeve to release the contact between the clamp block and the cable, thereby facilitating the movement of the cable. During the lifting process, after loosening the connecting sleeve, the tension spring causes the push ring to push the clamp block to abut against the cable, and the friction pad contacts the cable to form a preliminary brake. When the drive system fails or the cable drops rapidly, the movement of the cable will drive the clamp block to gather along the inclined groove, and the clamping force of the clamp block on the cable will be enhanced. At the same time, the friction between the friction pad and the cable will quickly fix the cable to prevent the cargo from falling. This design can respond quickly in an emergency, effectively avoid safety accidents caused by drive system failure or cable loss of control, and ensure the safety of equipment and cargo. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a crane for preventing imbalance in the utility model;

[0021] Figure 2 It is a cross-sectional structural diagram of the ground fixing mechanism in the utility model;

[0022] Figure 3 It is a partial structural schematic diagram of the auxiliary mechanism in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the installation sleeve in the utility model;

[0024] Figure 5 It is a schematic cross-sectional view of the speed stop mechanism of the utility model.

[0025] In the figure: 1. trailer; 2. crane body; 3. hydraulic cylinder; 4. mounting shell; 5. motor; 6. taper sleeve; 7. screw block; 8. center rod; 9. rotating sleeve; 10. turning handle; 11. oblique block; 12. sliding sleeve; 13. sliding rod; 14. contact block; 15. plug rod; 16. limit groove; 17. connecting plate; 18. return spring; 19. cable; 20. limit block; 21. mounting sleeve; 22. oblique groove; 23. oblique sliding block; 24. clamping block; 25. sliding groove; 26. connecting sleeve; 27. push ring; 28. tension spring; 29. ​​friction pad. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-Figure 5 A crane to prevent imbalance includes a trailer 1, a crane body 2 is provided on the trailer 1, a ground fixing mechanism is provided on the outside of the trailer 1, the ground fixing mechanism includes a hydraulic cylinder 3, a mounting shell 4, a motor 5, a cone sleeve 6, a spiral block 7 and an auxiliary mechanism, the hydraulic cylinder 3 is installed on the outside of the trailer 1, the mounting shell 4 is installed at the bottom of the hydraulic cylinder 3, the motor 5 is installed in the mounting shell 4, the cone sleeve 6 is rotatably installed on the bottom surface of the mounting sleeve 21 and is connected to the output end of the motor 5, the spiral block 7 is provided with multiple groups installed on the outer wall of the cone sleeve 6, the auxiliary mechanism includes a center rod 8, a rotating sleeve 9, turning handle 10, inclined block 11, sliding sleeve 12, sliding rod 13, contact block 14 and insertion rod 15, the center rod 8 is rotatably installed in the cone sleeve 6, the rotating sleeve 9 is installed on the outside of the center rod 8, the turning handle 10 is installed on the top of the center rod 8 and is slidably connected with the cone sleeve 6, the inclined block 11 is provided with multiple groups installed on the outer wall of the rotating sleeve 9, the sliding sleeve 12 is provided with multiple groups installed on the cone sleeve 6, the sliding rod 13 slides in multiple groups of sliding sleeves 12, the contact block 14 is installed on the top of multiple groups of sliding rods 13, and the insertion tube is installed on the top of multiple groups of sliding rods 13 and is slidably connected with the sliding sleeve 12.

[0030] The ground fixing mechanism is provided with multiple groups, which are respectively arranged on the outside of the trailer 1. This design enables the ground fixing mechanism to provide balanced support force at different positions, ensuring that the trailer 1 remains stable during operation and prevents tilting or sliding, thereby improving the overall safety and reliability of operation.

[0031] The outer sides of the multiple groups of inclined blocks 11 are provided with limit grooves 16. The setting of the limit grooves 16 effectively limits the range of movement of the inclined blocks 11, prevents them from unnecessary displacement or movement during use, ensures that the inclined blocks 11 are always in a predetermined position in the working state, and enhances the stability and accuracy of the equipment.

[0032] The outer sides of the multiple groups of contact blocks 14 and the limiting grooves 16 are all provided with rounded corners. The rounded corner design reduces the friction between the contact blocks 14 and the limiting grooves 16, avoids the possible jamming or wear caused by the sharp corners, and makes the movement smoother, effectively reduces the loss of parts and prolongs the service life.

[0033] A connecting plate 17 is installed at the bottom of the multiple groups of plug rods 15, and a return spring 18 is connected between the multiple groups of connecting plates 17 and the sliding sleeve 12. The return spring 18 can provide a restoring force when the plug rod 15 moves, ensuring that the plug rod 15 can automatically return to the initial position after operation, and the connecting plate 17 further enhances the connection stability between the plug rod and the sliding sleeve 12, and improves the reliability and functionality of the overall structure.

[0034] The plurality of groups of plug rods 15 are all configured in polygonal shape and are slidably connected to the sleeve 12. The contact surface between the plug rods 15 and the sleeve 12 is larger, which reduces the looseness caused by rotation or vibration, thereby increasing the firmness of the connection, improving the stability of the system, and ensuring the smooth sliding of the plug rods 15 during operation.

[0035] In this embodiment, when the crane needs to be fixed, the hydraulic cylinder 3 will start to work. The hydraulic cylinder 3 provides pressure through the hydraulic system to push its piston out, thereby pushing the mounting shell 4 downward. A motor 5 is installed in the mounting shell 4 at the bottom of the hydraulic cylinder 3. After the motor 5 is started, it drives the cone sleeve 6 to rotate. The rotation of the cone sleeve 6 drives the multiple groups of spiral blocks 7 installed on the outer wall to move along the spiral path and rotate and insert them into the soil. The rotation of the handle 10 will drive the entire rotating sleeve 9 to adjust. When the rotating sleeve 9 rotates, the inclined block 11 will also move accordingly. The inclined block 11 abuts against and guides the contact block 14, guiding the contact block 14 to push the slide rod 13 to slide in the slide sleeve 12. The movement of the slide rod 13 further pushes the insertion rod 15 to slide along the slide sleeve 12 and squeezes the return spring 18. When the contact block 14 slides into the limiting groove 16, it pushes the insertion rod 15 to slide and insert it into the soil. The multiple groups of ground fixing mechanisms are operated in turn to complete the fixation of the four corners of the trailer 1.

[0036] See also Figure 4-Figure 5 As an implementation method of the cable mechanism: a cable 19 is provided on the crane body 2, and a quick stop mechanism is provided on the crane body 2. The quick stop mechanism includes a limit block 20, a mounting sleeve 21, an inclined groove 22, an inclined slider 23, a clamping block 24, a slide 25, a connecting sleeve 26, a push ring 27 and a tension spring 28. The limit block 20 is installed on the outside of the crane body 2, the mounting sleeve 21 is installed on the limit block 20, the inclined groove 22 is provided with multiple groups distributed on the inner wall of the mounting sleeve 21, the inclined slider 23 slides in multiple groups of inclined grooves 22, the clamping block 24 is installed on the inner side of multiple groups of inclined sliders 23, the slide 25 is provided with multiple groups distributed on the mounting sleeve 21, the connecting sleeve 26 is slidably connected to the multiple groups of slides 25, the push ring 27 is installed on the inner side of the connecting sleeve 26, and the two ends of the tension spring 28 are respectively connected to the mounting sleeve 21 and the connecting sleeve 26.

[0037] Friction pads 29 are installed inside the multiple groups of clamping blocks 24, and the cables 19 are inserted between the multiple groups of clamping blocks 24. The friction pads 29 can provide additional friction to prevent the cables 19 from sliding or loosening during the operation of the crane, thereby ensuring that the cables 19 always remain stable and safe, reducing the risk of accidents when lifting heavy objects.

[0038] More specifically, when the crane body 2 drives the cable 19 to move before lifting, the user pulls the connecting sleeve 26 by hand to drive the push ring 27 to release the contact with the multiple groups of clamping blocks 24 and stretch the tension spring 28, so that the multiple groups of friction pads 29 do not contact the outer wall of the cable 19. When lifting, the connecting sleeve 26 is loosened, and the connecting sleeve 26 is pulled by the tension spring 28 to drive the push ring 27 to contact the multiple groups of clamping blocks 24. The cable 19 contacts the friction pad 29. When the cable 19 drives the cargo to rise, it pulls the multiple groups of clamping blocks 24 to slide outward along the inclined groove 22. When the drive system fails and the lifted cargo drives the cable 19 to drop rapidly, the cable 19 will drive the multiple groups of clamping blocks 24 to gather along the inclined groove 22, so that the holding force of the multiple groups of clamping blocks 24 on the cable 19 is strengthened, and the cable 19 is fixed and quickly stopped by the enhanced friction between the multiple groups of friction pads 29 and the cable 19.

[0039] In summary, when the overall equipment is in use or running: when the crane needs to be fixed, the hydraulic cylinder 3 will start working, and the hydraulic cylinder 3 provides pressure through the hydraulic system to push its piston out, thereby pushing the mounting shell 4 downward, and a motor 5 is installed in the mounting shell 4 at the bottom of the hydraulic cylinder 3. After the motor 5 is started, it drives the cone sleeve 6 to rotate, and the rotation of the cone sleeve 6 drives the multiple groups of spiral blocks 7 installed on the outer wall to move along the spiral path and rotate and insert into the soil. The rotation of the handle 10 will drive the entire rotating sleeve 9 to adjust. When the rotating sleeve 9 rotates, the inclined block 11 will also move accordingly. The inclined block 11 abuts against and guides the contact block 14, guiding the contact block 14 to push the sliding rod 13 to slide in the sliding sleeve 12. The movement of the sliding rod 13 further pushes the insertion rod 15 to slide along the sliding sleeve 12 and squeezes the return spring 18. When the contact block 14 slides into the limiting groove 16, it pushes the insertion rod 15 to slide and insert into the soil, and operates multiple groups of ground fixing mechanisms in turn to complete the fixation of the four corners of the trailer 1.

[0040] When the crane body 2 drives the cable 19 to move before lifting, the user pulls the connecting sleeve 26 by hand to drive the push ring 27 to release the contact with the multiple groups of clamping blocks 24 and stretch the tension spring 28, so that the multiple groups of friction pads 29 do not contact the outer wall of the cable 19. When lifting, the connecting sleeve 26 is loosened, and the connecting sleeve 26 is pulled by the tension spring 28 to drive the push ring 27 to contact the multiple groups of clamping blocks 24. The cable 19 contacts the friction pad 29. When the cable 19 drives the cargo to rise, it pulls the multiple groups of clamping blocks 24 to slide outward along the inclined groove 22. When the driving system fails and the lifted cargo drives the cable 19 to drop rapidly, the cable 19 will drive the multiple groups of clamping blocks 24 to gather along the inclined groove 22, so that the holding force of the multiple groups of clamping blocks 24 on the cable 19 is strengthened, and the cable 19 is fixed and quickly stopped by the enhanced friction between the multiple groups of friction pads 29 and the cable 19.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A crane for preventing imbalance, comprising a trailer (1), characterized in that: The trailer (1) is provided with a crane body (2), and a ground fixing mechanism is provided on the outside of the trailer (1). The ground fixing mechanism comprises a hydraulic cylinder (3), a mounting shell (4), a motor (5), a cone sleeve (6), a screw block (7) and an auxiliary mechanism. The hydraulic cylinder (3) is installed on the outside of the trailer (1), the mounting shell (4) is installed at the bottom end of the hydraulic cylinder (3), the motor (5) is installed in the mounting shell (4), the cone sleeve (6) is rotatably installed on the bottom surface of the mounting sleeve (21) and is connected to the output end of the motor (5), the screw block (7) is provided with a plurality of groups installed on the outer wall of the cone sleeve (6), and the auxiliary mechanism comprises a center rod (8), a rotating sleeve (9), a turning handle (10) , an inclined block (11), a sliding sleeve (12), a sliding rod (13), a contact block (14) and an insertion rod (15); the center rod (8) is rotatably mounted in the conical sleeve (6); the rotating sleeve (9) is mounted on the outside of the center rod (8); the turning handle (10) is mounted on the top of the center rod (8) and is slidably connected to the conical sleeve (6); the inclined block (11) is provided with a plurality of groups mounted on the outer wall of the rotating sleeve (9); the sliding sleeve (12) is provided with a plurality of groups mounted on the conical sleeve (6); the sliding rod (13) slides in the plurality of groups of sliding sleeves (12); the contact block (14) is mounted on the top of the plurality of groups of sliding rods (13); and the insertion tube is mounted on the top of the plurality of groups of sliding rods (13) and is slidably connected to the sliding sleeve (12).

2. The crane for preventing unbalance according to claim 1, characterized in that: The ground fixing mechanism is provided with a plurality of groups which are respectively arranged on the outside of the trailer (1).

3. The crane for preventing unbalance according to claim 2, characterized in that: Limiting grooves (16) are provided on the outer sides of the plurality of groups of inclined blocks (11).

4. The crane for preventing unbalance according to claim 3 is characterized in that: The outer sides of the plurality of groups of contact blocks (14) and the limiting grooves (16) are all provided with rounded corners.

5. The crane for preventing unbalance according to claim 4 is characterized in that: A connecting plate (17) is installed at the bottom end of each of the insertion rods (15), and a return spring (18) is connected between each of the multiple groups of the connecting plates (17) and the sliding sleeve (12).

6. The crane for preventing unbalance according to claim 5, characterized in that: The plurality of groups of insertion rods (15) are all arranged in a polygonal shape and are slidably connected to the sliding sleeve (12).

7. The crane for preventing unbalance according to claim 6, characterized in that: The crane body (2) is provided with a cable (19), and the crane body (2) is provided with a quick stop mechanism, the quick stop mechanism comprising a limit block (20), a mounting sleeve (21), an inclined groove (22), an inclined sliding block (23), a clamping block (24), a sliding groove (25), a connecting sleeve (26), a push ring (27) and a tension spring (28), the limit block (20) being mounted on the outside of the crane body (2), and the mounting sleeve (21) being mounted on the limit block (20). A plurality of inclined grooves (22) are provided and distributed on the inner wall of the mounting sleeve (21); the inclined slide blocks (23) slide in the plurality of inclined grooves (22); the clamping blocks (24) are installed on the inner sides of the plurality of inclined slide blocks (23); a plurality of slide grooves (25) are provided and distributed on the mounting sleeve (21); the connecting sleeve (26) is slidably connected to the plurality of slide grooves (25); the push ring (27) is installed on the inner side of the connecting sleeve (26); and the two ends of the tension spring (28) are respectively connected to the mounting sleeve (21) and the connecting sleeve (26).

8. The crane for preventing unbalance according to claim 7, characterized in that: Friction pads (29) are installed on the inner sides of the clamping blocks (24), and the cables (19) are inserted between multiple groups of the clamping blocks (24).

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