Winding drum mechanism for crane

Abstract

The utility model discloses a winding drum mechanism for a crane, which comprises a base and a winding drum arranged on the base, a locking mechanism for preventing inertial motion is arranged on one side of the winding drum, and a take-up and pay-off mechanism for preventing a steel wire from being wound disorderly is arranged above the winding drum; the winding drum is simple in structure and reasonable in design, the winding drum and the base can be kept relatively static at the moment when the motor stops rotating through the arrangement of the locking mechanism, inaccurate positioning caused by continuous rotation of the winding drum due to inertia is prevented, secondary adjustment is prevented, and the working accuracy is improved; by arranging the take-up and pay-off mechanism, tension can be applied to the steel wire rope by controlling the height of the hydraulic support, stress balance of the steel wire rope is guaranteed, a spiral groove ensures that the steel wire rope is arranged along a fixed path, and a spiral matched with the spiral groove is arranged on a roller rod and matched with a roller to guide the steel wire rope to stably enter the spiral groove to ensure that the steel wire rope is not wound disorderly. The service life of the steel wire rope is prolonged, and downtime and maintenance work are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of crane equipment, in particular to a winding drum mechanism for a crane. Background Art

[0002] Cranes are one of the indispensable heavy machinery in the current social development. Common cranes are divided into bridge cranes, gantry cranes, tower cranes and other light and small lifting equipment. These equipment are widely used in factories, ports, construction sites, mines and other places, greatly reducing the intensity of physical labor and improving production efficiency and people's quality of life.

[0003] Deficiencies of existing technology:

[0004] At present, all cranes generally use drums to wind steel ropes to complete operations such as lifting, moving and lowering targets. Cranes need to be positioned when working. The existing drums are not convenient for self-locking. The object will be positioned inaccurately due to inertia. At the same time, the wire rope winding equipment is relatively messy, the wire rope is unevenly wound, and it is easy to loosen. Utility Model Content

[0005] The purpose of the present utility model is to provide a drum mechanism for a crane to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a drum mechanism for a crane, comprising a base and a drum mounted on the base, a locking mechanism for preventing inertial motion being provided on one side of the drum, a reeling and unreeling mechanism for preventing tangling of the wire being provided above the drum, a motor being provided on one side of the drum, and an output shaft of the motor being fixedly connected to the drum;

[0007] The locking mechanism includes:

[0008] A support rod, wherein the support rod is fixedly arranged on the base;

[0009] A slide rail, one end of which is fixedly connected to the support rod, and there are two sets of slide rails;

[0010] A limiting plate, wherein the limiting plate is slidably connected to the slide rail via a connecting rod;

[0011] A spring, with two ends of the spring connected to the support rod and the limit plate respectively;

[0012] A fixing screw is arranged on the limiting plate.

[0013] Preferably, the wire retracting and releasing mechanism includes:

[0014] A spiral groove is provided on the surface of the drum to ensure that the wire rope is arranged along a fixed path;

[0015] A hydraulic support, one end of which is fixedly mounted on a base;

[0016] A roller rod connected to the movable end of the hydraulic support;

[0017] A guide roller is arranged on the roller rod.

[0018] Preferably, a fixed disk is fixedly provided on the side of the reel away from the motor, and a disk-shaped limiting groove is provided on the fixed disk.

[0019] Preferably, the fixing spiral matches the disc-shaped limiting groove.

[0020] Preferably, a coil is provided inside the fixed disk, an iron sheet is provided on the limiting disk, and the coil is electrically connected to the motor.

[0021] Preferably, the guide roller is arranged along the moving path of the wire rope to guide the wire rope to smoothly enter the spiral groove.

[0022] Preferably, a motor seat is provided on the base, and the motor is fixedly connected to the motor seat.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. This reel mechanism for a crane is provided with a locking mechanism, which includes a locking block, a fixing plate, a connecting block, and a limit plate. The locking mechanism can keep the reel and the reel wall relatively stationary when the motor stops rotating, thereby preventing the reel from continuing to rotate due to inertia and causing inaccurate positioning, preventing secondary adjustments, and improving working accuracy.

[0025] 2. The drum mechanism for a crane is provided with a wire-reeling mechanism, which includes a spiral groove, a hydraulic support, a roller rod, and a guide roller. The wire-reeling mechanism can apply tension to the wire rope by controlling the height of the hydraulic support to ensure that the force of the wire rope is balanced. The spiral groove ensures that the wire rope is arranged along a fixed path. The roller rod is provided with a spiral that matches the spiral groove. The roller is used to guide the wire rope to enter the spiral groove smoothly, which can ensure that the wire rope winding process is smooth and there is no tangling, thereby extending the service life of the wire rope and reducing downtime and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional diagram of the appearance of the utility model;

[0027] Figure 2 This is the main view of the utility model;

[0028] Figure 3 This is a schematic diagram of the locking mechanism of the present utility model;

[0029] Figure 4 This is a schematic diagram of the limit plate of the utility model;

[0030] Figure 5 It is a schematic diagram of the fixed disk of the utility model.

[0031] In the figure: 1. Base; 101. Motor base; 2. Reel; 201. Fixed disk; 202. Disc-shaped limiting groove; 3. Locking mechanism; 301. Support rod; 302. Slide rail; 303. Limiting disk; 304. Spring; 305. Fixed spiral; 4. Reeling and retracting mechanism; 401. Spiral groove; 402. Hydraulic support; 403. Roller rod; 404. Guide roller; 5. Motor. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying 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.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "disposed" should be understood broadly. For example, they can refer to fixed connection or disposition, detachable connection or disposition, or integrated connection or disposition. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "several" means two or more, unless otherwise specifically defined.

[0036] Example 1

[0037] See also Figure 1-4 As shown, the utility model provides a technical solution for a drum mechanism for a crane: a drum mechanism for a crane, comprising a base 1 and a drum 2 arranged on the base 1, characterized in that: a locking mechanism 3 for preventing inertial motion is provided on one side of the drum 2, a wire reeling and unreeling mechanism 4 for preventing tangling of the wire is provided above the drum 2, a motor 5 is provided on one side of the drum 2, and the output shaft of the motor 5 is fixedly connected to the drum 2;

[0038] The locking mechanism 3 includes: a support rod 301, a slide rail 302, a limit plate 303, a spring 304, and a fixing bolt 305. The support rod 301 is fixedly set on the base 1, one end of the slide rail 302 is fixedly connected to the support rod 301, there are two groups of slide rails 302, the limit plate 303 is slidably connected to the slide rail 302 through a connecting rod, the two ends of the spring 304 are respectively connected to the support rod 301 and the limit plate 303, and the fixing screw 305 is set on the limit plate 303.

[0039] The wire reel mechanism 4 includes a spiral groove 401, a hydraulic support 402, a roller rod 403, and a guide roller 404. The spiral groove 401 is provided on the surface of the reel 2 to ensure that the wire rope is arranged along a fixed path. One end of the hydraulic support 402 is fixed to the base 1. By adjusting the height of the hydraulic support 402, a certain tension is applied to the wire rope to ensure balanced force on the wire rope and prevent it from loosening or tangling during the winding and unwinding process. The roller rod 403 is connected to the movable end of the hydraulic support 402. The guide roller 404 is provided on the roller rod 403 and is arranged along the wire rope's moving path to guide the wire rope smoothly into the spiral groove.

[0040] A fixed disk 201 is fixedly provided on the side of the reel 2 away from the motor 5 , and a disk-shaped limiting groove 202 is provided on the fixed disk 201 .

[0041] The fixing bolt 305 matches the disc-shaped limiting groove 202 .

[0042] A coil is provided inside the fixed disk 201 , an iron sheet is provided on the limiting disk 303 , and the coil is electrically connected to the motor 5 .

[0043] The roller rod 403 is provided with a spiral that matches the spiral groove 401 , and cooperates with the guide roller 404 to guide the wire rope to smoothly enter the spiral groove 401 , which can ensure a smooth wire rope winding process.

[0044] A motor base 101 is provided on the base 1 , and the motor 5 is fixedly connected to the motor base 101 .

[0045] The device operates as follows: a wire rope enters from one end of the drum 2 and passes through the reel-and-reel mechanism 4, which arranges the rope along the path of the spiral groove 401. A hydraulic support 402 applies appropriate tension to prevent the rope from loosening or tangling during winding and unwinding. A roller rod 403, equipped with a spiral that matches the spiral groove 401, works in conjunction with a guide roller 404 to guide the rope smoothly into the groove. The hydraulic support 402, roller rod 403, and guide roller 404 work together to ensure the rope is evenly and orderly wound within the drum's spiral groove. When the motor 5 is working normally, the coil inside the fixed disk 201 is disconnected and the spring 304 maintains its original length. When the motor 5 stops working, the coil inside the fixed disk 201 is energized to generate an electromagnetic field, which can adsorb the iron sheet on the limit disk 303. The spring 304 is stretched, and the limit disk 303 fits the fixed disk. The fixed spiral 305 on the limit disk 303 matches the disc-shaped limit groove 202 on the fixed disk 201, which can limit the rotation of the fixed disk 201 and brake the reel 2.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A drum mechanism for a crane, comprising a base (1) and a drum (2) arranged on the base (1), characterized in that: A locking mechanism (3) for preventing inertial motion is provided on one side of the reel (2), a wire reeling and unwinding mechanism (4) for preventing the wire from being tangled is provided above the reel (2), a motor (5) is provided on one side of the reel (2), and an output shaft of the motor (5) is fixedly connected to the reel (2); The locking mechanism (3) comprises: A support rod (301), wherein the support rod (301) is fixedly arranged on the base (1); A slide rail (302), one end of which is fixedly connected to the support rod (301), and there are two sets of slide rails (302); A limiting plate (303), wherein the limiting plate (303) is slidably connected to the slide rail (302) via a connecting rod; A spring (304), wherein both ends of the spring (304) are respectively connected to the support rod (301) and the limiting plate (303); A fixing screw (305), wherein the fixing screw (305) is arranged on the limiting plate (303).

2. A reel mechanism for a crane according to claim 1, characterized in that: The wire-retracting and -releasing mechanism (4) comprises: A spiral groove (401), the spiral groove (401) being provided on the surface of the drum (2) and used to ensure that the steel wire rope is arranged along a fixed path; A hydraulic support (402), one end of the hydraulic support (402) being fixedly disposed on the base (1); A roller rod (403), the roller rod (403) being connected to the movable end of the hydraulic support (402); A guide roller (404), wherein the guide roller (404) is arranged on the roller rod (403).

3. The reel mechanism for a crane according to claim 1, characterized in that: A fixed disk (201) is fixedly provided on the side of the reel (2) away from the motor (5), and a disk-shaped limiting groove (202) is provided on the fixed disk (201).

4. The reel mechanism for a crane according to claim 1, characterized in that: The fixing spiral (305) matches the disc-shaped limiting groove (202).

5. The reel mechanism for a crane according to claim 3, characterized in that: A coil is provided inside the fixed disk (201), an iron sheet is provided on the limiting disk (303), and the coil is electrically connected to the motor (5).

6. The reel mechanism for a crane according to claim 2, characterized in that: The guide roller (404) is arranged along the moving path of the steel wire rope and is used to guide the steel wire rope to smoothly enter the spiral groove (401).

7. The reel mechanism for a crane according to claim 1, characterized in that: A motor seat (101) is provided on the base (1), and the motor (5) is fixedly connected to the motor seat (101).

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