Lifting and moving mechanism for crane

Abstract

The utility model relates to the technical field of cranes, and particularly discloses a lifting and moving mechanism for a crane, which comprises a support base, two bearing plates arranged inside the support base, a winding roller arranged above the support base, two gears rotatably arranged inside the support base, and track shoes fixedly connected to two sides of the top of each bearing plate. Impact grooves are formed in the two sides of the top of the bearing plate, and two inserting rods are fixedly connected into the bearing plate; through matched use of the positioning cylinder, the clamping plate, the bearing plate and the blocking rod, the winding roller can be separated from the whole device after winding a steel wire rope, workers can conveniently overhaul and replace the steel wire rope, meanwhile, after being detached, the winding roller is downwards supported by the bearing plate, and the steel wire rope is prevented from being damaged. And after an electric mechanism in the winding roller breaks down, the winding roller can be limited through a blocking rod, and the situation that a hoisted object falls off due to rotation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, and in particular relates to a lifting and moving mechanism for cranes. Background Art

[0002] A crane refers to a multi-action lifting machine that can lift heavy objects vertically and move them horizontally within a certain range. Cranes generally use a drum to reel in a wire rope to move the object to be hoisted to the corresponding position. They play an important role in construction, especially in the lifting of larger equipment, saving labor. However, some existing cranes often have certain deficiencies when in use and need to be improved.

[0003] In the Chinese patent with publication number CN220449653U, a stable lifting mechanism for a crane is mentioned, including a machine base and a winding roller. Both sides of the inner wall of the machine base are rotatably connected to fixed parts through bearings, and connecting blocks are installed on the opposite sides of the two fixing parts, and the two connecting blocks are respectively fixedly connected to the two ends of the winding roller. The middle part of the winding roller is fixedly connected to a wire rope, and a reduction motor is fixedly installed on the side wall of the machine base. Limit plates are fixedly sleeved on both sides of the surface of the winding roller. An installation cavity is opened inside the fixing part, and a connecting plate is slidably connected to the inner wall of the installation cavity. Four plug-in rods are fixedly connected to the surface of the connecting plate, and four plug-in slots are opened inside the connecting block. The utility model provides a stable lifting mechanism for a crane. The winding roller is quick to disassemble and assemble, which is conducive to the replacement and maintenance of the wire rope wound on its surface. A locking mechanism is provided to limit the rotation of the winding roller to avoid safety accidents caused by accidental rotation of the winding roller due to equipment failure.

[0004] However, although the above technical solution is convenient for disassembly and assembly of the winding roller when in use, its disassembly and assembly structure is to disassemble the winding roller by controlling the power on and off of the electromagnet. This will cause the plug-in rod to immediately detach from the inside of the plug-in slot after the electromagnet is powered off, so that the winding roller will fall directly downward due to gravity. If the winding roller is wrapped with a wire rope, the weight will be very large at this time. If no corresponding object is used to block it, the winding roller will fall directly downward, hitting the ground, and the force applied to the winding roller itself will be applied in the opposite direction, which may cause damage to the winding roller. Therefore, it has certain limitations when in use. Utility Model Content

[0005] The purpose of the utility model is to provide a lifting and moving mechanism for a crane, so as to solve the problem in the background art that after the electromagnet is powered off, the winding roller will immediately fall downward, causing damage to the winding roller and objects below the winding roller.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A lifting and moving mechanism for a crane includes: a support base, two bearing plates are provided inside the support base, a winding roller is provided above the support base, two gears are rotatably provided inside the support base, track shoes are fixedly connected to both sides of the top of the bearing plate, and the top of the track shoes is engaged with the surface of the gear, impact grooves are provided on both sides of the top of the bearing plate, and the positions of the impact grooves correspond to the positions of the winding rollers, two plug rods are fixedly connected to the inside of the bearing plate, two plug holes are provided inside the bearing plate, and the surfaces of the plug rods pass through the inside of the plug holes.

[0008] Preferably, both sides of the top of the support base are fixedly connected with fixed blocks, a rotating shaft is rotatably provided inside the fixed block, a connecting ring is fixedly connected to the surface of the rotating shaft, a blocking rod is fixedly connected to the surface of the connecting ring, six grooves are opened inside the winding roller, and the surface of the blocking rod passes through the inside of the groove.

[0009] Preferably, the support base is fixedly connected to a reduction motor inside, the output end of the reduction motor is fixedly connected to a positioning cylinder, the top and bottom of the positioning cylinder are provided with transverse grooves, the inner side wall of the transverse groove is provided with a sliding groove, the sliding groove is slidably connected to a sliding block inside, and a pressing rod is passed through the interior of the sliding block.

[0010] Preferably, the interior of the positioning cylinder is fixedly connected to an extrusion cylinder, the bottom end of the pressing rod is fixedly connected to a pressing plate, and the pressing plate is located inside the extrusion cylinder, and compression springs are fixedly connected to opposite sides of the two pressing plates.

[0011] Preferably, a connecting rod is fixedly connected to the surface of the pressing rod, a clamping plate is fixedly connected to the bottom end of the connecting rod, and a pressing block is fixedly connected to the top end of the pressing rod.

[0012] Preferably, a snap-in groove is opened inside the positioning cylinder, and the surface of the snap-in plate passes through the inside of the snap-in groove. A rotating rod is fixedly connected to one side of the positioning cylinder, and the rotating rod is rotatably arranged inside the support base. A steel wire rope is wound around the surface of the winding roller.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) After the winding roller winds the wire rope, the staff can separate the winding roller from the overall device in time, which is convenient for replacing and repairing the separated wire rope. The separation method is simple and easy for the staff to operate. After the winding roller is separated from the overall device, it is supported by the bearing plate to prevent the winding roller itself and some objects from being damaged by hitting the ground, thereby playing a certain protective role for the winding roller.

[0015] (2) After the steel wire on the winding roller lifts the object to be lifted, it can limit the winding roller in time to avoid the winding roller rotating due to failure of the electric equipment, causing the lifted object to fall and causing unnecessary dangerous situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a cross-sectional view of the winding roller of the utility model;

[0018] Figure 3 This is a cross-sectional view of the interior of the positioning cylinder of the utility model;

[0019] Figure 4 This is a cross-sectional view of the interior of the extrusion cylinder of the utility model;

[0020] Figure 5 This is a three-dimensional diagram of the load-bearing plate of the utility model;

[0021] Figure 6 This is a three-dimensional diagram of the clamping slot of the utility model;

[0022] In the figure: 1. Support base; 2. Load-bearing plate; 3. Winding roller; 4. Gear; 5. Track shoe; 6. Impact groove; 7. Connecting rod; 8. Fixing block; 9. Connecting ring; 10. Blocking rod; 11. Reducer motor; 12. Positioning cylinder; 13. Horizontal groove; 14. Pressing rod; 15. Pressing plate; 16. Compression spring; 17. Extrusion cylinder; 18. Connecting rod; 19. Snap-in plate; 20. Pressing block; 21. Snap-in groove; 22. Rotating rod; 23. Groove; 24. Wire rope. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1:

[0025] See also Figures 1 to 6As shown, a lifting and moving mechanism for a crane includes a supporting base 1, two bearing plates 2 are arranged inside the supporting base 1, a winding roller 3 is arranged above the supporting base 1, two gears 4 are rotatably arranged inside the supporting base 1, track shoes 5 are fixedly connected to both sides of the top of the bearing plate 2, and the top of the track shoe 5 is engaged with the surface of the gear 4, impact grooves 6 are provided on both sides of the top of the bearing plate 2, and the position of the impact groove 6 corresponds to the position of the winding roller 3, two plug rods 7 are fixedly connected to the inside of the bearing plate 2, two plug holes are provided inside the bearing plate 2, and the surface of the plug rod 7 passes through the inside of the plug hole. By setting the bearing plate 2, the track shoe 5 can be installed and fixed. By setting the track shoe 5, the gear 4 can be engaged with it, making it move forward more smoothly. By opening the impact groove 6, the winding roller 3 falls into the impact groove 6 when moving downward, and at the same time plays a positioning role to prevent the winding roller 3 from rolling at will. By setting the connecting rod 7 and the connecting hole, the two bearing plates 2 can be spliced ​​when moving in opposite directions, so that the winding roller 3 can be supported intact. It should be noted that the inner bottom wall of the impact groove 6 is fixedly connected with a silicone pad, which plays a certain protective role in the falling of the winding roller 3.

[0026] A reduction motor 11 is fixedly connected to the interior of the support base 1, and a positioning cylinder 12 is fixedly connected to the output end of the reduction motor 11. A transverse groove 13 is provided at the top and bottom of the positioning cylinder 12, and a sliding groove is provided on the inner sidewall of the transverse groove 13. A sliding block is slidably connected to the interior of the sliding groove, and a pressing rod 14 runs through the interior of the sliding block. The setting of the reduction motor 11 enables the positioning cylinder 12 to rotate. It should be noted that there are two positioning cylinders 12, and the positioning cylinder 12 on the left is fixedly connected to the output end of the reduction motor 11. The provision of the transverse groove 13 provides a certain amount of space for the sliding groove.

[0027] An extrusion cylinder 17 is fixedly connected to the interior of the positioning cylinder 12. A pressing plate 15 is fixedly connected to the bottom end of the pressing rod 14. The pressing plate 15 is located inside the extrusion cylinder 17. Compression springs 16 are fixedly connected to the opposite sides of the two pressing plates 15. The arrangement of the extrusion cylinder 17 allows the pressing plate 15 and the compression spring 16 to be positioned, and the arrangement of the compression spring 16 allows the two pressing rods 14 to approach each other.

[0028] The surface of the pressing rod 14 is fixedly connected to a connecting rod 18, the bottom end of the connecting rod 18 is fixedly connected to a clamping plate 19, and the top end of the pressing rod 14 is fixedly connected to a pressing block 20. The setting of the connecting rod 18 allows the clamping plate 19 to be indirectly connected to the pressing rod 14 so that it can move in conjunction with it. The setting of the pressing block 20 makes it more comfortable for the staff to press the pressing rod 14.

[0029] A snap-in slot 21 is defined within the positioning cylinder 12, and the surface of the snap-in plate 19 extends through the interior of the snap-in slot 21. A rotating rod 22 is fixedly connected to one side of the positioning cylinder 12, and the rotating rod 22 is rotatably disposed within the interior of the support base 1. A steel wire rope 24 is wound around the surface of the winding roller 3. The provision of the snap-in slot 21 allows the snap-in plate 19 to be inserted therein, indirectly connecting the positioning cylinder 12 to the winding roller 3. The provision of the steel wire rope 24 allows the object to be hoisted to be lifted to a certain height. It should be noted that the rotating rod 22 is rotatably connected to the right side of the inner wall of the support base 1.

[0030] Example 2:

[0031] See also Figure 1 As shown, fixing blocks 8 are fixedly connected to both sides of the top of the support base 1. A rotating shaft is rotatably provided inside the fixing blocks 8. A connecting ring 9 is fixedly connected to the surface of the rotating shaft. A blocking rod 10 is fixedly connected to the surface of the connecting ring 9. Six grooves 23 are provided inside the winding roller 3, and the surface of the blocking rod 10 extends through the interior of the grooves 23. The provision of the fixing blocks 8 allows the rotating shaft to be rotatably provided inside the fixing blocks 8. The provision of the connecting ring 9 allows the blocking rod 10 to be fixedly connected thereto. The provision of the grooves 23 allows the blocking rod 10 to be inserted into the grooves 23 to limit the position of the winding roller 3, preventing the winding roller 3 from rotating itself in the event of a device failure.

[0032] The working principle of the present utility model is as follows: the staff moves the two bearing plates 2 toward each other, so that the track shoe 5 and the gear 4 are meshed and rotated, making its movement more stable, until the two bearing plates 2 are in contact, so that the connecting rod 7 is inserted into the inside of the connecting groove. At this time, the two impact grooves 6 are just below the round roller with the larger edge of the winding roller 3. At this time, the staff squeezes the two pressing blocks 20 toward each other through the positioning cylinder 12, and then squeezes the pressing plate 15 at the bottom end of the pressing rod 14, and then both ends of the compression spring 16 are squeezed to compress it. In this process, the pressing rod 14 drives the connecting rod 18 to descend, and then the connecting rod 18 drives the clamping plate 19 down. The staff then lifts the winding roller 3. After the winding roller 3 lifting equipment moves, the staff rotates the blocking rod 10 through the rotating shaft to make it fit into the inside of the groove 23, so that the winding roller 3 is limited to a certain extent, thereby avoiding the situation where the winding roller 3 rotates due to equipment failure.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting and moving mechanism for a crane, characterized in that: include: A support base (1), wherein two bearing plates (2) are provided inside the support base (1), a winding roller (3) is provided above the support base (1), two gears (4) are rotatably provided inside the support base (1), track shoes (5) are fixedly connected to both sides of the top of the bearing plate (2), and the top of the track shoe (5) is meshed with the surface of the gear (4), impact grooves (6) are provided on both sides of the top of the bearing plate (2), and the position of the impact groove (6) corresponds to the position of the winding roller (3), two plug rods (7) are fixedly connected to the inside of the bearing plate (2), two plug holes are provided inside the bearing plate (2), and the surface of the plug rod (7) passes through the inside of the plug hole.

2. The lifting and moving mechanism for a crane according to claim 1, characterized in that: Both sides of the top of the support base (1) are fixedly connected with fixed blocks (8), a rotating shaft is rotatably provided inside the fixed block (8), a connecting ring (9) is fixedly connected to the surface of the rotating shaft, a blocking rod (10) is fixedly connected to the surface of the connecting ring (9), six grooves (23) are opened inside the winding roller (3), and the surface of the blocking rod (10) passes through the inside of the groove (23).

3. The lifting and moving mechanism for a crane according to claim 1, characterized in that: The support base (1) is fixedly connected to a reduction motor (11) inside, and the output end of the reduction motor (11) is fixedly connected to a positioning cylinder (12), the top and bottom of the positioning cylinder (12) are both provided with a transverse groove (13), the inner side wall of the transverse groove (13) is provided with a sliding groove, the interior of the sliding groove is slidably connected to a sliding block, and the interior of the sliding block is penetrated by a pressing rod (14).

4. The lifting and moving mechanism for a crane according to claim 3, characterized in that: The interior of the positioning cylinder (12) is fixedly connected to an extrusion cylinder (17), the bottom end of the pressing rod (14) is fixedly connected to a pressing plate (15), and the pressing plate (15) is located inside the extrusion cylinder (17), and the two pressing plates (15) are fixedly connected to a compression spring (16) on opposite sides.

5. The lifting and moving mechanism for a crane according to claim 3, characterized in that: The surface of the pressing rod (14) is fixedly connected to a connecting rod (18), the bottom end of the connecting rod (18) is fixedly connected to a clamping plate (19), and the top end of the pressing rod (14) is fixedly connected to a pressing block (20).

6. The lifting and moving mechanism for a crane according to claim 3, characterized in that: A clamping groove (21) is provided inside the positioning cylinder (12), and the surface of the clamping plate (19) passes through the inside of the clamping groove (21). A rotating rod (22) is fixedly connected to one side of the positioning cylinder (12), and the rotating rod (22) is rotatably arranged inside the supporting base (1). A steel wire rope (24) is wound around the surface of the winding roller (3).

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