Follow-up crane control mechanism

Abstract

The utility model discloses a follow-up type crane control mechanism which comprises a supporting assembly, a driving unit, a rope outlet winding drum mechanism, a fixed pulley assembly and a lifting hook mechanism, the supporting assembly comprises two first supporting beams which are symmetrically arranged, and a plurality of second supporting beams which are used for assisting installation of the driving unit and the rope outlet winding drum mechanism are fixedly arranged between the two first supporting beams. The fixed pulley assembly is installed on the lower end face of the second supporting beam, the lifting hook mechanism comprises symmetrically-arranged side plates and a lifting hook piece installed between the two side plates, dip angle detectors are fixedly arranged on the front side face and the rear side face of the lifting hook piece, and protective covers are fixedly installed on the outer side faces of the side plates; and a traction mechanism for performing traction and position adjustment on the lifting hook mechanism is arranged on the outer side surface of the protective cover. According to the utility model, the inclination state of the lifting hook piece can be controlled through the traction mechanism, so that the position of the lifting hook piece is adjusted, and the lifting hook piece cannot shake in the suspended moving process.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and in particular to a follow-up crane control mechanism. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. It is also called an overhead crane, gantry crane, or hoist. A bridge crane is a lifting device that spans across workshops, warehouses, and material yards for material handling. Because its two ends rest on tall concrete pillars or metal supports, it resembles a bridge. The bridge frame of a bridge crane runs longitudinally along tracks laid on elevated structures on both sides, making full use of the space beneath the bridge frame for material handling without being obstructed by ground equipment. Traditional crane control systems mainly use fixed-track or manual remote control operation modes.

[0003] A search revealed a utility model patent document, CN219408989U, which discloses a double-hoist gantry crane. The crane includes vertical support columns, with crossbeam rails at the top of the two columns. A drive module is symmetrically slidably mounted at the bottom of the crossbeam rails, and a lifting hook is mounted at the bottom of the drive module. A limit mechanism is provided on one side of the lifting hook. This utility model, by incorporating a limit mechanism, allows the lifting hook to engage with the load after it is positioned above the load. A remote control device controls an infrared sensor, activating an electric push rod that engages one side of the hook, sealing the top of the lifting hook. A small power supply box provides power to the electric push rod, ensuring the load remains stable during lifting and lowering, preventing it from falling, protecting workers, enabling remote control, and improving operational efficiency.

[0004] Before lifting heavy objects, the crane will move the hook above the object to be lifted. Generally, the movement of the hook is controlled by remote control. However, when the crane is operated manually, the hook will sway during the forward or backward movement without any traction, which may affect the safety of the surrounding workers. Utility Model Content

[0005] The purpose of this invention is to provide a follow-up crane control mechanism that can control the tilt state of the hook component through a traction mechanism, thereby adjusting the position of the hook component and preventing it from swaying during suspended movement.

[0006] The present invention adopts the following technical solution:

[0007] A follow-up trolley control mechanism includes a support assembly, a drive unit, a rope feeding drum mechanism, a fixed pulley assembly, and a hook mechanism. The support assembly includes two symmetrically arranged support beams 1, and several support beams 2 are fixedly arranged between the two support beams 1 to assist in the installation of the drive unit and the rope feeding drum mechanism. The fixed pulley assembly is installed on the lower end face of the support beams 2.

[0008] The hook mechanism includes symmetrically arranged side plates and a hook component installed between the two side plates. Inclination detectors are fixedly installed on the front and rear sides of the hook component.

[0009] A protective cover is fixedly installed on the outer side of the side plate, and a traction mechanism for adjusting the hook mechanism is provided on the outer side of the protective cover.

[0010] Optionally, the traction mechanism includes a cylindrical shell and a rope pressing assembly. The cylindrical shell is fixedly installed on the outer side of the protective cover. An arc-shaped through groove is opened below the circumferential surface of the cylindrical shell, and the rope pressing assembly is slidably disposed in the arc-shaped through groove.

[0011] Optionally, a circular cover is fixed to the outer side of the cylindrical shell by bolts, a roller is rotatably installed inside the cylindrical shell, a traction rope is slidably installed on the circumference of the roller, one end of the traction rope is fixed to the surface of the roller, and connectors are fixedly installed at the outer ends of the traction ropes on both sides of the roller, with the connectors on both sides being threaded.

[0012] Optionally, a drive motor is fixedly installed on the outer side of the cover, and the output shaft of the drive motor is fixed to one end of the roller shaft.

[0013] Optionally, the rope pressing assembly includes a sliding block, the upper and lower end faces of which are symmetrically provided with through arc-shaped holes, and arc-shaped sliding rods are symmetrically fixed in the arc-shaped slots. The arc-shaped sliding rods are adapted to the arc-shaped holes and slide through the arc-shaped holes.

[0014] Optionally, the front and rear surfaces of the sliding block are provided with rope outlet holes, the diameter of which is adapted to the diameter of the traction rope.

[0015] Optionally, a groove is provided on the surface of the sliding block inside the cylindrical shell, and a clamping block for clamping the traction rope is slidably disposed in the groove. An arc-shaped groove adapted to the rope outlet hole is provided below the clamping block.

[0016] Optionally, guide shafts are symmetrically fixed inside the chute, the guide shafts pass through the clamping block and slide together, and clamping springs are symmetrically installed between the upper end face of the clamping block and the inner wall of the chute, with the clamping springs sleeved on the circumferential surface of the guide shaft.

[0017] Optionally, symmetrically fixed limiting rings are provided on the circumferential surface of the cylindrical shell. Two limiting rings are set on both sides of the arc-shaped through groove. Three cylindrical slots are opened on the opposite surfaces of the two limiting rings. The three slots are respectively set on the left, right and lower sides of the limiting ring.

[0018] Optionally, a limiting block is fixedly provided on the outer surface of the sliding block. The outer surface of the limiting block has symmetrical grooves. A convex sliding plate is slidably arranged in the groove. A cover plate for limiting the sliding plate is installed on the outer surface of the limiting block. The surface of the cover plate has a slot. A part of the sliding plate slides in the slot. A return spring is installed between one side of the sliding plate and the inner wall of the groove. A locking post is fixedly provided on the other side of the sliding plate. The locking post passes through the outer side of the limiting block and is slidably engaged. The diameter of the locking post is adapted to the locking groove, and the locking post and the locking groove are slidably engaged.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. In this utility model, when the hook is to move forward or backward, the traction ropes on both sides are pulled out and then joined together. By pulling the traction ropes, the tilt angle detector on the hook sends a movement signal to the overhead crane above until the hook moves to the designated location. The operation is simple and convenient, and it can ensure that the hook will not sway during the suspended movement, thus ensuring the safety of the operator.

[0021] 2. In this utility model, the rope pressing assembly is used to press the traction rope during winding and unwinding, which can ensure that the traction rope will not be tangled and twisted on the circumference of the roller during winding and unwinding. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the hook mechanism of this utility model. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the hook mechanism of this utility model. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the traction mechanism of this utility model;

[0027] Figure 6 This is a schematic diagram of the limiting ring of this utility model;

[0028] Figure 7 This is a schematic diagram of the rope pressing assembly of this utility model. Figure 1 ;

[0029] Figure 8 This is a schematic diagram of the rope pressing assembly of this utility model. Figure 2 ;

[0030] Figure 9 This is a schematic diagram of the connector of this utility model.

[0031] In the diagram, 1. Support assembly; 11. Support beam one; 12. Support beam two; 2. Drive unit; 3. Rope reel mechanism; 4. Fixed pulley assembly; 5. Hook mechanism; 6. Traction mechanism; 7. Rope pressing assembly; 51. Hook component; 52. Side plate; 53. Inclination detector; 54. Protective cover; 61. Cylindrical shell; 611. Arc-shaped through groove; 612. Arc-shaped slide rod; 62. Drive motor; 63. Cover; 64. Limiting ring; 641. Slot; 65. Roller shaft; 66. Traction rope; 661. Connector; 71. Sliding block; 711. Through hole; 712. Rope outlet hole; 72. Slide groove; 73. Pressing block; 731. Guide shaft; 732. Pressing spring; 74. Limiting block; 741. Groove; 742. Locking post; 743. Sliding plate; 744. Return spring; 745. Cover plate. Detailed Implementation

[0032] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0033] Please see Figure 1-9 The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0034] like Figure 1-3 As shown, a follow-up crane control mechanism includes a support assembly 1, a drive unit 2, a rope reel mechanism 3, a fixed pulley assembly 4, and a hook mechanism 5. The support assembly 1 is installed on the crane trolley. The support assembly 1 includes two symmetrically arranged support beams 11. Several support beams 12 are fixedly arranged between the two support beams 11 to assist in the installation of the drive unit 2 and the rope reel mechanism 3. The fixed pulley assembly 4 is installed on the lower end face of the support beams 12 to cooperate with the rope reel mechanism 3 to perform lifting operations on the hook mechanism 51.

[0035] The hook mechanism 5 includes symmetrically arranged side plates 52 and a hook component 51 installed between the two side plates 52. Inclination detectors 53 are fixedly installed on the front and rear sides of the hook component 51.

[0036] A protective cover 54 is fixedly installed on the outer side of the side plate 52. A pulley group that works with the fixed pulley assembly 4 is installed inside the protective cover 54. The protective cover 54 is used to prevent the wire rope from derailing. A traction mechanism 6 is provided on the outer side of the protective cover 54 for traction and adjustment of the hook mechanism 5.

[0037] like Figure 3-4 As shown, in this embodiment, the traction mechanism 6 includes a cylindrical shell 61 and a rope pressing assembly 7. The cylindrical shell 61 is fixedly installed on the outer side of the protective cover 54 by bolts. An arc-shaped through groove 611 is provided below the circumferential surface of the cylindrical shell 61, and the rope pressing assembly 7 is slidably disposed in the arc-shaped through groove 611.

[0038] like Figure 5 As shown, in this utility model, a circular cover 63 is fixedly provided on the outer side of the cylindrical shell 61 by bolts. A roller 65 is rotatably provided inside the cylindrical shell 61. A traction rope 66 is slidably provided on the circumferential surface of the roller 65. One end of the traction rope 66 is fixed to the surface of the roller 65. As the roller 65 rotates, the traction rope 66 can extend to the outside of the cylindrical shell 61 through the arc-shaped through groove 611.

[0039] like Figure 3-5 As shown, in this utility model, a drive motor 62 is fixedly installed on the outer side of the cover 63. The output shaft of the drive motor 62 is fixed to one end of the roller shaft 65. The forward and reverse rotation of the roller shaft 65 is controlled by the drive motor 62.

[0040] like Figure 3 and Figure 9 As shown, in this utility model, the outer ends of the traction ropes 66 on both sides of the roller shaft 65 are fixedly provided with connectors 661. The connectors 661 on both sides are threaded together so that the traction ropes 66 on both sides are connected together, which facilitates the traction of the hook 51.

[0041] like Figure 5-7 As shown, in this utility model, the rope pressing assembly 7 includes a sliding block 71. The upper and lower end faces of the sliding block 71 are symmetrically provided with through arc-shaped holes 711. Arc-shaped sliding rods 612 are symmetrically fixed in the arc-shaped groove 611. The arc-shaped sliding rods 612 are adapted to the arc-shaped holes 711 and pass through the arc-shaped holes 711 to ensure that the sliding block 71 slides stably in the arc-shaped groove 611.

[0042] like Figure 7 As shown, in this utility model, the front and rear surfaces of the sliding block 71 are provided with rope outlet holes 712, and the diameter of the rope outlet holes 712 is adapted to the diameter of the traction rope 66.

[0043] like Figure 7As shown, in this utility model, the sliding block 71 has a groove 72 on its surface inside the cylindrical shell 61. A clamping block 73 for clamping the traction rope 66 is slidably disposed in the groove 72. An arc-shaped groove adapted to the rope outlet hole 712 is provided on the bottom of the clamping block 73.

[0044] Guide shafts 731 are symmetrically fixed within the slide groove 72. The guide shafts 731 pass through the clamping block 73 and slide to ensure the sliding stability of the clamping block 73.

[0045] A clamping spring 732 is symmetrically installed between the upper end face of the clamping block 73 and the inner wall of the slide groove 72. The clamping spring 732 is sleeved on the circumferential surface of the guide shaft 731. The clamping spring 732 is used to squeeze the clamping block 73, thereby clamping the traction rope 66 to ensure that the traction rope 66 will not become tangled on the surface of the roller 65 when it is being wound up or unwound.

[0046] like Figure 5-8 As shown in the present invention, in order to ensure that the traction rope 66 can better pull and adjust the hook 51 in four directions (front, back, left, and right), limiting rings 64 can be symmetrically fixed on the circumferential surface of the cylindrical shell 61. Two limiting rings 64 are set on both sides of the arc-shaped through groove 611, and three cylindrical slots 641 are opened on the opposite surfaces of the two limiting rings 64. The three slots 641 are respectively set on the left, right, and lower sides of the limiting rings 64.

[0047] A limiting block 74 is fixedly installed on the outer surface of the sliding block 71. The outer surface of the limiting block 74 has symmetrically formed grooves 741. A convex sliding plate 743 is slidably disposed within the grooves 741. A cover plate 745 is installed on the outer surface of the limiting block 74 to limit the sliding plate 743. A slot is formed on the surface of the cover plate 745, and a portion of the sliding plate 743 slides within the slot, facilitating manual adjustment of the sliding plate 743's position.

[0048] A reset spring 744 is installed between one side of the sliding plate 743 and the inner wall of the groove 741. A locking post 742 is fixedly provided on the other side of the sliding plate 743. The locking post 742 passes through the outer side of the limiting block 74 and slides. The diameter of the locking post 742 is adapted to the locking groove 641, and the locking post 742 slides with the locking groove 641.

[0049] Specifically, during use, when the hook component 51 needs to move forward or backward or left or right, the gantry crane remote control is not required.

[0050] During the forward and backward movement, first adjust the sliding block 71 to the left and right sides of the cylindrical shell 61. Then, fix the position of the sliding block 71 by cooperating with the locking pin 742 and the locking groove 641. Then, start the drive motors 62 on both sides to unwind the traction rope 66 until it is fully pulled out. Then, connect the traction ropes 66 on both sides through the connector 661. Then, pull the traction rope 66, and the hook 51 will tilt. The tilt direction of the hook 51 is detected by the tilt angle detector 53, and a movement signal is sent to the overhead crane above. Until the hook 51 moves to the designated location, the pull on the traction rope 66 is released, and the hook 51 returns to a vertical state under the action of gravity. The tilt angle detector 53 can no longer detect the tilt direction. At this time, the overhead crane above stops moving. Then, disconnect the connection of the traction ropes 66 on both sides, start the drive motor 62 to rotate in the opposite direction, and make the roller 65 wind up the traction rope 66. At this time, the clamping block 73 can clamp the traction rope 66 to ensure that the traction rope 66 is not messed up during winding.

[0051] When moving to the left, the sliding block 71 on the left side is adjusted to the lower circumferential surface of the cylindrical shell 61. Then, the position of the sliding block 71 is fixed by the cooperation of the locking pin 742 and the locking groove 641. Then, the traction rope 66 is unwound and pulled on the traction rope 66 on the left side. The hook 51 will tilt. The tilt direction of the hook 51 is detected by the tilt angle detector 53 and a movement signal is sent to the overhead crane above until the hook 51 moves to the designated location.

[0052] When moving to the right, adjust the right sliding block 71 to the lower circumferential surface of the cylindrical shell 61, and then repeat the above process to complete the rightward movement and positioning of the hook 51.

[0053] When the formal lifting operation is carried out, the tilt meter 53 stops detecting to avoid the swaying of the hook during the lifting process, which would affect the movement of the overhead crane.

[0054] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0055] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0056] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A servo-type vehicle control mechanism, characterized in that: It includes a support assembly, a drive unit, a rope delivery drum mechanism, a fixed pulley assembly, and a hook mechanism. The support assembly includes two symmetrically arranged support beams 1, and several support beams 2 are fixedly arranged between the two support beams 1 to assist in the installation of the drive unit and the rope delivery drum mechanism. The fixed pulley assembly is installed on the lower end face of the support beams 2. The hook mechanism includes symmetrically arranged side plates and a hook component installed between the two side plates. Inclination detectors are fixedly installed on the front and rear sides of the hook component. A protective cover is fixedly installed on the outer side of the side plate, and a traction mechanism for adjusting the hook mechanism is provided on the outer side of the protective cover.

2. A follow-up vehicle control mechanism according to claim 1, characterized by: The traction mechanism includes a cylindrical shell and a rope pressing assembly. The cylindrical shell is fixedly installed on the outer side of the protective cover. An arc-shaped through groove is opened below the circumferential surface of the cylindrical shell, and the rope pressing assembly is slidably arranged in the arc-shaped through groove.

3. A follow-up vehicle control mechanism according to claim 2, characterized in that: A circular cover is fixed to the outer side of the cylindrical shell by bolts. A roller is rotatably installed inside the cylindrical shell. A traction rope is slidably installed on the circumference of the roller. One end of the traction rope is fixed to the surface of the roller. Connectors are fixed to the outer ends of the traction ropes on both sides of the roller. The connectors on both sides are threaded.

4. A follow-up vehicle control mechanism according to claim 3, characterized in that: A drive motor is fixedly installed on the outer side of the cover, and the output shaft of the drive motor is fixed to one end of the roller shaft.

5. A follow-up vehicle control mechanism according to claim 3, characterized in that: The rope pressing assembly includes a sliding block. The upper and lower end faces of the sliding block are symmetrically provided with through arc-shaped holes. Arc-shaped sliding rods are symmetrically fixed in the arc-shaped slots. The arc-shaped sliding rods are adapted to the arc-shaped holes and slide through the arc-shaped holes.

6. A follow-up vehicle control mechanism according to claim 3, characterized in that: The front and rear surfaces of the sliding block are provided with rope outlet holes, the diameter of which is matched with the diameter of the traction rope.

7. A follow-up vehicle control mechanism according to claim 1, characterized by: The sliding block has a groove on its surface inside the cylindrical shell. A clamping block for clamping the traction rope is slidably installed in the groove. An arc-shaped groove that matches the rope outlet hole is provided below the clamping block.

8. A follow-up vehicle control mechanism according to claim 7, characterized by: A guide shaft is symmetrically fixed inside the slide groove. The guide shaft passes through the clamping block and slides. A clamping spring is symmetrically installed between the upper end face of the clamping block and the inner wall of the slide groove. The clamping spring is sleeved on the circumferential surface of the guide shaft.

9. A follow-up vehicle control mechanism according to claim 2, characterized in that: The cylindrical shell is symmetrically fixed with limiting rings on its circumference. Two limiting rings are set on both sides of the arc-shaped through groove. Three cylindrical slots are opened on the opposite surfaces of the two limiting rings. The three slots are respectively set on the left, right and lower sides of the limiting ring.

10. A follow-up vehicle control mechanism according to claim 9, characterized in that: A limiting block is fixedly installed on the outer surface of the sliding block. The outer surface of the limiting block has symmetrical grooves. A convex sliding plate is slidably installed in the groove. A cover plate for limiting the sliding plate is installed on the outer surface of the limiting block. The surface of the cover plate has a slot. A part of the sliding plate slides in the slot. A return spring is installed between one side of the sliding plate and the inner wall of the groove. A locking post is fixedly installed on the other side of the sliding plate. The locking post penetrates the outer side of the limiting block and slides in engagement with it. The diameter of the locking post matches the locking groove, and the locking post and the locking groove slide in engagement.

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