Wireless remote control rotating device for wood grab bucket

Abstract

The utility model provides a wireless remote control rotating device of a wood grab bucket, which relates to the field of wood transfer and comprises an extension frame, clamping jaws are rotatably connected to two sides of the bottom end of the extension frame, a fixed frame is arranged above the extension frame, a direct-current motor controlled by wireless remote control is fixedly mounted in the fixed frame, and the direct-current motor is connected with the clamping jaws. A gearbox is fixedly installed in the middle of the fixing frame, a worm gear is rotationally connected into the gearbox, and a rotating shaft is fixedly installed in the middle of the worm gear. According to the wireless remote control rotating device for the wood grab bucket, a direct-current motor is arranged, the working time and the rotating direction of the direct-current motor are controlled, a worm can be driven to rotate through gear transmission, so that a worm wheel can be driven to rotate, an extension frame can be driven to rotate through a rotating shaft, and the opening direction of a clamping jaw can be changed; and finally, the grabbing direction of the clamping jaw can be perpendicular to the length direction of the log as much as possible, and therefore the clamping direction can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of wood transportation, in particular to a wireless remote control rotating device for a wood grab bucket. Background Art

[0002] Currently, port log handling generally utilizes gantry cranes in conjunction with log grabs. Log grabs require directional control when grabbing logs, aiming to hold the logs perpendicular to their length. Existing log grabs lack inherent rotation capabilities and rely on the gantry crane's rotation, travel, and boom length adjustment, as well as the ability to rotate the grab against high points in the log. This results in low log handling efficiency (a single hook cycle time of 3-4 minutes for log loading and unloading), high cargo damage rates, and high energy consumption (gantry cranes consume up to 0.35 kWh per ton of cargo). Furthermore, the operation is demanding and difficult for the operator.

[0003] Existing patent CN220300183U discloses an electric hydraulic remote-controlled rotating timber grab, which includes an upper hanger, a hydraulic system, and grab teeth. The upper hanger is provided with a slewing support below, and a hydraulic motor is provided on one side of the slewing support. A lower hanger is provided below the slewing support, and a main frame is provided on both sides of the lower hanger. Telescopic cylinders are provided on both sides of the lower hanger away from the main frame, and grab teeth are provided at the bottom of the main frame. The telescopic cylinder is connected to the main frame and the grab teeth at a hinge point at one end away from the lower hanger. The grab teeth are opened and closed by the telescopic cylinder. An oil tank is provided above the main frame, and a hydraulic system is vertically installed in the tank. The oil pipe of the hydraulic system is connected to the hydraulic motor on the slewing support through a valve block. An electrical control box is provided on one side of the hydraulic system above the main frame, and a receiver is installed in the electrical control box. The receiver is adapted for a remote control. This setup requires complex oil circuit configuration and circuit drive. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a wireless remote control rotating device for a wood grab, which solves the problem of inconvenience in adjusting the direction of the grab in the background art.

[0005] Technical Solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wireless remote control rotating device for a wood grab, comprising an extension frame, wherein both sides of the bottom end of the extension frame are rotatably connected with clamping claws, a fixed frame is provided above the extension frame, a DC motor controlled by a wireless remote control is fixedly installed inside the fixed frame, a gearbox is fixedly installed in the middle of the fixed frame, a worm gear is rotatably connected inside the gearbox, a rotating shaft is fixedly installed in the middle of the worm gear, the rotating shaft passes through the fixed frame and extends to the bottom of the fixed frame, the rotating shaft is fixedly connected to the extension frame, a worm is meshed with one side of the worm gear, and the output end of the DC motor extends to the inside of the gearbox and is driven by the worm gear.

[0007] Furthermore, a counterweight is fixedly installed on the top of the clamp located inside the hinge shaft, a pull plate is provided at the bottom end of the counterweight, a traction rope is fixedly installed on the upper surface of the pull plate, and the traction rope is connected by traction through a traction mechanism fixedly installed on the extension frame.

[0008] Furthermore, the traction mechanism includes a connecting frame, which is fixedly connected to the extension frame. The middle part of the connecting frame is rotatably connected to a rotating shaft driven by an external power, and the middle part of the rotating shaft is fixedly installed with a winding wheel.

[0009] Furthermore, a connecting plate is fixedly installed in the middle of the extension frame, the rotating shaft is rotatably connected to the connecting plate, a friction block is fixedly installed on the side of the rotating shaft close to the connecting plate, a friction sleeve is sleeved on the outer surface of the friction block, the friction sleeve and the connecting plate are fixedly connected by an electromagnetic telescopic sleeve, and the friction sleeve and the connecting plate are fixedly connected by a compression spring.

[0010] Furthermore, when the electromagnetic telescopic sleeve is energized, it attracts the friction sleeve to approach the connecting plate. There are multiple electromagnetic telescopic sleeves, and the multiple electromagnetic telescopic sleeves are distributed in a ring array.

[0011] Furthermore, hanging holes are provided on the upper sides of the fixing frame.

[0012] The beneficial effects of the present invention are:

[0013] 1. The wireless remote control rotation device of the wood grab bucket can drive the worm to rotate through the gear transmission by setting a DC motor and controlling the working time and rotation direction of the DC motor, thereby driving the worm wheel to rotate, and then driving the extension frame to rotate through the rotating shaft, thereby changing the opening direction of the clamping claw, and finally making the clamping direction as perpendicular to the length direction of the log as possible, so that the clamping direction can be adjusted more conveniently.

[0014] 2. The wireless remote control rotating device of the wood grab is equipped with a counterweight block fixedly installed on the top end of the clamping jaw located on the inner side of the hinge shaft. The counterweight block can make the clamping jaw automatically unfold when there is no external force. The bottom end of the counterweight block is provided with a pull plate, and the upper surface of the pull plate is fixedly installed with a traction rope. The traction rope is connected by a traction mechanism fixedly installed on the extension frame. The traction mechanism can move the pull plate upward by pulling the traction rope, so that the two clamping jaws can be brought closer to each other. Through such an arrangement, the device for controlling the opening and closing of the clamping jaws can be fixed to the part that can rotate together, thereby avoiding the need to add additional structure to adapt to the rotation.

[0015] 3. The wood grab has a wireless remote control rotating device. When the electromagnetic telescopic sleeve is energized, it attracts the friction sleeve to the connecting plate. There are multiple electromagnetic telescopic sleeves, which are distributed in a ring array. When the electromagnetic telescopic sleeve is energized, the friction sleeve is separated from the friction block. When the electromagnetic telescopic sleeve loses power, the friction sleeve contacts the friction block under the action of the compression spring, thereby avoiding temporary power failure during use that may cause the wood to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection of the traction mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the rotary shaft connection of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection of the lifting ring of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection of the fixed frame of the utility model.

[0021] Among them, 1. extension frame; 2. clamping claw; 3. fixed frame; 4. DC motor; 5. worm gear; 6. rotating shaft; 7. worm; 8. counterweight; 9. pull plate; 10. traction rope; 11. traction mechanism; 12. lifting ring; 13. gearbox; 111. connecting frame; 112. rotating shaft; 113. winding wheel; 114. connecting plate; 115. friction block; 116. friction sleeve; 117. electromagnetic telescopic sleeve; 118. compression spring. DETAILED DESCRIPTION

[0022] 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.

[0023] See Figure 1-Figure 5 A wireless remote control rotating device for a wood grab comprises an extension frame 1, with clamping claws 2 rotatably connected to both sides of the bottom end of the extension frame 1, a fixed frame 3 is provided above the extension frame 1, a DC motor 4 controlled by a wireless remote control is fixedly installed inside the fixed frame 3, a gearbox 13 is fixedly installed in the middle of the fixed frame 3, a worm gear 5 is rotatably connected to the inside of the gearbox 13, a rotating shaft 6 is fixedly installed in the middle of the worm gear 5, the rotating shaft 6 passes through the fixed frame 3 and extends to the bottom of the fixed frame 3, the rotating shaft 6 is fixedly connected to the extension frame 1, a worm 7 is meshed with one side of the worm gear 5, and the output end of the DC motor 4 extends to the inside of the gearbox 13 and is gear-driven with the worm 7.

[0024] A counterweight 8 is fixedly installed on the top end of the clamping jaw 2 located on the inner side of the hinge shaft. By setting the counterweight 8, the clamping jaw 2 can be automatically unfolded when there is no external force. A pull plate 9 is provided at the bottom end of the counterweight 8. A traction rope 10 is fixedly installed on the upper surface of the pull plate 9. The traction rope 10 is connected by a traction mechanism 11 fixedly installed on the extension frame 1. The traction mechanism 11 pulls the traction rope 10 to move the pull plate 9 upward, so that the two clamping jaws 2 can be brought closer to each other. Through such a setting, the device for controlling the opening and closing of the clamping jaw 2 can be fixed to the part that can rotate together, thereby avoiding the need to add additional structure to adapt to the rotation.

[0025] The traction mechanism 11 includes a connecting frame 111, which is fixedly connected to the extension frame 1. The middle part of the connecting frame 111 is rotatably connected to a rotating shaft 112 driven by an external power. A winding wheel 113 is fixedly installed in the middle of the rotating shaft 112. The externally driven rotating shaft 112 can drive the rotating shaft 112 to rotate, and then drive the winding wheel 113 to rotate, thereby achieving traction.

[0026] A connecting plate 114 is fixedly installed in the middle of the extension frame 1, and the rotating shaft 112 is rotatably connected to the connecting plate 114. A friction block 115 is fixedly installed on the side of the rotating shaft 112 close to the connecting plate 114. The outer surface of the friction block 115 is sleeved with a friction sleeve 116. The friction sleeve 116 and the connecting plate 114 are fixedly connected by an electromagnetic telescopic sleeve 117, and the friction sleeve 116 and the connecting plate 114 are fixedly connected by a compression spring 118. Through such an arrangement, the medical friction sleeve 116 can be moved to contact the friction block 115, thereby limiting the rotation of the rotating shaft 112.

[0027] When the electromagnetic telescopic sleeve 117 is energized, it attracts the friction sleeve 116 to the connecting plate 114. There are multiple electromagnetic telescopic sleeves 117, which are distributed in a ring array. When the electromagnetic telescopic sleeve 117 is energized, the friction sleeve 116 is separated from the friction block 115. When the electromagnetic telescopic sleeve 117 loses power, the friction sleeve 116 contacts the friction block 115 under the action of the compression spring 118, thereby avoiding temporary power failure during use that causes the wood to fall off.

[0028] Lifting holes 12 are provided on the upper sides of the fixing frame 3. The lifting holes 12 can be used to connect with existing lifting devices. By setting chain lifting, it can be ensured that the lifting part will not rotate along with the rotation.

[0029] When in use, by controlling the working time and rotation direction of the DC motor 4, the worm 7 can be driven to rotate through the gear transmission, thereby driving the worm wheel 5 to rotate, and then the extension frame 1 can be driven to rotate through the rotating shaft 112, so as to change the opening direction of the clamping jaw 2, and finally make the gripping direction of the clamping jaw 2 as perpendicular as possible to the length direction of the log, so that the gripping direction can be adjusted more conveniently.

[0030] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wireless remote control rotating device for a wood grab, comprising an extension frame (1), characterized in that: Clamping claws (2) are rotatably connected to both sides of the bottom end of the extension frame (1), a fixed frame (3) is provided above the extension frame (1), and a DC motor (4) controlled by a wireless remote control is fixedly installed inside the fixed frame (3); A gearbox (13) is fixedly mounted in the middle of the fixed frame (3), a worm gear (5) is rotatably connected to the inside of the gearbox (13), a rotating shaft (6) is fixedly mounted in the middle of the worm gear (5), the rotating shaft (6) passes through the fixed frame (3) and extends to the bottom of the fixed frame (3), and the rotating shaft (6) is fixedly connected to the extension frame (1); A worm (7) is meshed with one side of the worm wheel (5), and an output end of the DC motor (4) extends to the interior of the gearbox (13) and is gear-driven with the worm (7).

2. The wireless remote control rotating device for a wood grab according to claim 1, characterized in that: A counterweight (8) is fixedly mounted on the top end of the clamping jaw (2) located inside the hinge shaft, a pull plate (9) is provided at the bottom end of the counterweight (8), a traction rope (10) is fixedly mounted on the upper surface of the pull plate (9), and the traction rope (10) is connected by traction through a traction mechanism (11) fixedly mounted on the extension frame (1).

3. The wireless remote control rotating device for a wood grab according to claim 2, characterized in that: The traction mechanism (11) comprises a connecting frame (111), the connecting frame (111) is fixedly connected to the extension frame (1), the middle portion of the connecting frame (111) is rotatably connected to a rotating shaft (112) driven by an external power, and the middle portion of the rotating shaft (112) is fixedly mounted with a winding wheel (113).

4. The wireless remote control rotating device for a wood grab according to claim 3, characterized in that: A connecting plate (114) is fixedly installed in the middle of the extension frame (1), a rotating shaft (112) is rotatably connected to the connecting plate (114), a friction block (115) is fixedly installed on one side of the rotating shaft (112) close to the connecting plate (114), a friction sleeve (116) is sleeved on the outer surface of the friction block (115), the friction sleeve (116) and the connecting plate (114) are fixedly connected via an electromagnetic telescopic sleeve (117), and the friction sleeve (116) and the connecting plate (114) are fixedly connected via a compression spring (118).

5. The wireless remote control rotating device for a wood grab according to claim 4, characterized in that: The electromagnetic telescopic sleeve (117) attracts the friction sleeve (116) to approach the connecting plate (114) when energized. There are multiple electromagnetic telescopic sleeves (117), and the multiple electromagnetic telescopic sleeves (117) are distributed in a ring array.

6. The wireless remote control rotating device for a wood grab according to claim 1, characterized in that: Lifting holes (12) are provided above both sides of the fixing frame (3).

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