Bridge crane grab bucket with anti-inclination function

By installing tilt sensors and rotation and telescopic mechanisms on the grab bucket of a bridge crane, and adjusting the position of the counterweight, the problem of the grab bucket tilting due to uneven weight distribution when grabbing objects was solved, thus improving the stability and safety of the grab bucket.

CN223852105UActive Publication Date: 2026-01-30GUANGXI SHUANGQI CRANE MFG CO LTD
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Patent Information

Application Number
CN202520904218.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2026-01-30
Estimated Expiration
2035-05-09

AI Technical Summary

Technical Problem

Existing bridge crane grabs are prone to tilting and uneven weight distribution when grabbing objects, which can cause objects to fall, posing a safety hazard and reducing the stability of the grab.

Method used

A tilt sensor is used to detect the tilt state of the grab bucket. The controller controls the motor and electric telescopic rod to adjust the rotation and extension of the counterweight, thereby increasing the weight on the other side of the tilt and maintaining the balance of the grab bucket through the rotation and extension mechanisms.

Benefits of technology

It effectively prevents the object being grabbed by the grab bucket from tilting or becoming unbalanced, thus improving the stability and safety of the grab bucket.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223852105U_ABST
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Abstract

The utility model relates to the technical field of hoisting machinery, and discloses a bridge crane grab bucket with an anti-inclination function, which comprises a crane grab bucket body, a rotating mechanism arranged at the top of the crane grab bucket body, a telescopic mechanism arranged at the top of the rotating mechanism, and a balancing weight fixedly arranged on the telescopic mechanism, the connecting mechanism is arranged at the top of the crane grab bucket body. When an inclination sensor detects that an object grabbed by the grab bucket inclines due to weighting, information is transmitted to a controller, the controller controls a motor and an electric telescopic rod to be started, the motor drives a second gear to rotate, and a first gear in linkage meshing connection drives a shaft rod to rotate on a fixing frame and is used for adjusting rotation and swing of a balancing weight. And the electric telescopic rod pushes the connecting plate to move forwards and is used for carrying out telescopic adjustment on the balancing weight and weighting the other heavy and inclined end, so that an object grabbed by the grab bucket is effectively prevented from being heavy and inclined, and the use stability of the grab bucket is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting machinery technical field, concretely relates to a bridge crane grab bucket with anti-inclination function. BACKGROUND

[0002] The bridge crane is the hoisting equipment that is crossed in workshop, warehouse and material yard above carries out material hoisting. Because its both ends are located on the high cement column or metal support, shape is similar to bridge. The bridge crane's bridge frame runs along the track laid on the high support on both sides, can make full use of the space under the bridge frame hoisting material, is not hindered by ground equipment. It is the hoisting machinery that uses the most widely, the most, one kind, generally by bridge frame, lifting mechanism, trolley, car moving mechanism, control room, trolley conductor device (auxiliary slide wire), crane total power supply conductor device (main slide wire) etc. Compose, and the grab bucket is one of the most important actuating mechanisms on the bridge crane, but the current grab bucket structure still has the following disadvantages in actual use.

[0003] For example, the publication number CN220690013U proposes a grab bucket structure of bridge crane, relating to hoisting machinery related technical field. The utility model discloses a connecting block and claw structure, wherein the peripheral side surface of the connecting block is movably connected with the claw structure. The claw structure includes a positioning groove plate, a sliding groove, an adjusting rod and a connecting T plate. The positioning groove plate has a downward through sliding groove in the inside. The adjusting rod and the connecting T plate are slidably connected in the sliding groove.

[0004] However, in the implementation of the related technology, the above-mentioned grab bucket structure of the bridge crane has the following problems: it is difficult to add weight to the other end of the grab bucket that is inclined due to the uneven weight of the grabbed object, which causes the grabbed object to be inclined due to the uneven weight of the grabbed object, which easily causes the grabbed object to fall, and the safety hazard is low, thereby reducing the stability of the use of the grab bucket. Therefore, a bridge crane grab bucket with anti-inclination function is proposed. UTILITY MODEL CONTENTS

[0005] The utility model proposes a bridge crane grab bucket with anti-inclination function, which solves the problem of difficult to add weight to the other end of the grab bucket that is inclined due to the uneven weight of the grabbed object in the related technology, which causes the grabbed object to be inclined due to the uneven weight of the grabbed object, which easily causes the grabbed object to fall, and the safety hazard is low.

[0006] The technical scheme of the utility model is as follows: a bridge crane grab bucket with anti-inclination function, comprising:

[0007] A crane grab bucket body;

[0008] A rotating mechanism is arranged on the top of the crane grab bucket body;

[0009] A telescopic mechanism is arranged on the top of the rotating mechanism;

[0010] a counterweight fixedly installed on the telescopic mechanism;

[0011] a connecting mechanism arranged on the top of the crane grab body and located at the periphery of the rotating mechanism;

[0012] an inclination sensor fixedly installed at the top center of the crane grab body.

[0013] Preferably, the rotating mechanism comprises a fixed frame fixedly installed on the top of the crane grab body, a shaft rod rotatably penetrating through the fixed frame, and a gear one fixedly connected to the bottom end of the shaft rod.

[0014] a motor fixedly installed on the top of the crane grab body, a gear two fixedly connected to the output end of the motor, the gear two being in meshing connection with the gear one, and the motor being in electrical connection with the inclination sensor through a controller.

[0015] Preferably, the top of the fixed frame is fixedly installed with a circular slide rail, a plurality of slide blocks are in sliding connection with the circular slide rail, a fixed disc is fixedly installed at the top of the plurality of slide blocks, and the bottom of the fixed disc is fixedly connected with the top end of the shaft rod.

[0016] Preferably, the telescopic mechanism comprises a fixed plate fixedly installed on the top of the fixed frame, an electric telescopic rod fixedly penetrating through the fixed plate, the output end of the electric telescopic rod being fixedly connected with a connecting plate, the top of the connecting plate being fixedly connected with the bottom of the counterweight, and the electric telescopic rod being in electrical connection with the inclination sensor through a controller.

[0017] Preferably, two driven rods are movably penetrating through the fixed plate, the two driven rods being located at the two sides of the electric telescopic rod, and one end of the two driven rods being fixedly connected with the rear side of the connecting plate.

[0018] Preferably, the connecting mechanism comprises four steel wires fixedly connected with the top of the crane grab body, a connecting disc fixedly connected with the top end of the four steel wires, and a triangular hole plate fixedly installed at the top center of the connecting disc.

[0019] Preferably, a cross-shaped supporting plate is sleeved on the four steel wires, and a stopper is fixedly penetrating through the four steel wires and located below the cross-shaped supporting plate.

[0020] The utility model discloses a working principle and beneficial effect for: through the tilt sensor detection and the object that the grab bucket caught appear partial weight inclination, will information to the controller, and the controller control motor and electric telescopic link start, and the motor drives gear no. 2 to rotate, and the gear no. 1 of linkage meshing connection drives the axle rod to rotate on the fixed frame, is used to the partial weight of the counterweight rotation swing adjustment, and the electric telescopic link pushes the connecting plate and moves forward, is used to the telescopic adjustment of the counterweight for the other end of partial weight inclination and is used to the weighting of the other end of partial weight inclination, effectively prevent the object that the grab bucket caught and partial weight and prevent inclination, thereby improved the stability of the grab bucket use. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model makes further detailed explanation in combination with the specific embodiment and the drawing.

[0022] Figure 1 It is the overall three-dimensional structure schematic diagram that the utility model proposes;

[0023] Figure 2 It is the partial three-dimensional structure schematic diagram that the utility model proposes;

[0024] Figure 3 It is the sectional three-dimensional structure schematic diagram of fixed frame that the utility model proposes;

[0025] In the drawing: 1, crane grab bucket body;

[0026] 2, rotating mechanism;21, fixed frame;22, axle rod;23, gear no. 1;24, motor;25, gear no. 2;26, round slide rail;27, sliding block;28, fixed disc;

[0027] 3, telescopic mechanism;31, fixed plate;32, electric telescopic link;33, driven rod;34, connecting plate;

[0028] 4, counterweight;

[0029] 5, connecting mechanism;51, steel wire rope;52, connecting disc;53, triangular hole plate;54, cross-shaped support plate;55, stop block;

[0030] 6, tilt sensor. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiment of the utility model will be clearly and completely described in combination with the embodiment of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are involved in the scope of the utility model protection.

[0032] Embodiment one

[0033] Please refer to Figure 1 - Figure 3 A bridge crane grab with anti-inclination function, comprising: a crane grab body 1, a rotating mechanism 2 arranged at the top of the crane grab body 1, a telescopic mechanism 3 arranged at the top of the rotating mechanism 2;

[0034] A counterweight 4 is fixedly installed on the telescopic mechanism 3, and an inclination sensor 6 is fixedly installed at the top center of the crane grab body 1.

[0035] The rotating mechanism 2 comprises a fixed frame 21 fixedly installed at the top of the crane grab body 1, a shaft rod 22 penetrating through the fixed frame 21, a gear one 23 fixedly connected to the bottom end of the shaft rod 22, a motor 24 fixedly installed at the top of the crane grab body 1, a gear two 25 fixedly connected to the output end of the motor 24, and the gear two 25 and the gear one 23 are in meshing connection, the motor 24 and the inclination sensor 6 are electrically connected through a controller, a circular slide rail 26 is fixedly installed at the top of the fixed frame 21, a plurality of sliding blocks 27 are slidably connected to the circular slide rail 26, and a fixed disc 28 is fixedly installed at the top of the plurality of sliding blocks 27.

[0036] By starting the motor 24, the motor 24 drives the gear two 25 to rotate, the gear one 23 in linkage meshing connection drives the shaft rod 22 to rotate on the fixed frame 21, and the counterweight 4 is rotated and adjusted;

[0037] While rotating and adjusting, the plurality of sliding blocks 27 are linked to slide on the circular slide rail 26, so that the stability of the counterweight 4 in rotating and adjusting is effectively improved.

[0038] The telescopic mechanism 3 comprises a fixed plate 31 fixedly installed at the top of the fixed frame 21, an electric telescopic rod 32 penetratingly fixedly installed on the fixed plate 31, an output end of the electric telescopic rod 32 is fixedly connected with a connecting plate 34, the top of the connecting plate 34 is fixedly connected with the bottom of the counterweight 4, the electric telescopic rod 32 and the inclination sensor 6 are electrically connected through a controller, two driven rods 33 are movably penetrated on the fixed plate 31, the two driven rods 33 are located on the two sides of the electric telescopic rod 32, and one end of the two driven rods 33 is fixedly connected with the rear side of the connecting plate 34.

[0039] The bridge crane grab with anti-inclination function comprises an inclination sensor 6 for detecting whether the object grabbed by the grab is inclined;

[0040] The electric telescopic rod 32 is started, the electric telescopic rod 32 pushes the connecting plate 34 to move forward, and the counterweight 4 is telescopically adjusted.

[0041] While the telescopic adjustment is being made, the two driven rods 33 are linked and slide on the fixed plate 31, effectively improving the stability of the telescopic adjustment of the counterweight 4.

[0042] When the tilt sensor 6 detects that the object grabbed by the grab bucket is tilted due to unbalance, information is transmitted to the controller, which controls the motor 24 and the electric telescopic rod 32 to start adjusting the counterweight 4 to add weight to the other end of the unbalanced tilt, effectively preventing the object grabbed by the grab bucket from tilting.

[0043] Embodiment Two

[0044] Based on Embodiment One, this embodiment includes: a connecting mechanism 5 arranged at the top of the crane grab bucket body 1 and located at the periphery of the rotating mechanism 2, the connecting mechanism 5 including four steel wires 51 fixedly connected to the top of the crane grab bucket body 1, a connecting disc 52 fixedly connected to the top ends of the four steel wires 51, a triangular hole plate 53 fixedly installed at the top center of the connecting disc 52, a cross-shaped supporting plate 54 sleeved on the four steel wires 51, and a stop block 55 fixedly installed on the four steel wires 51 and located below the cross-shaped supporting plate 54.

[0045] The technical scheme provided by this embodiment is that the triangular hole plate 53 is used to connect with the bridge crane;

[0046] The cross-shaped supporting plate 54 is used to support the four steel wires 51, effectively keeping the grab bucket balanced at four corners;

[0047] The stop block 55 is used to block the cross-shaped supporting plate 54, effectively preventing the cross-shaped supporting plate 54 from sliding downward.

[0048] The above is only a preferred embodiment of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A bridge crane grab with anti-tilting function, characterized in that, Include: The crane grab body (1); Rotary mechanism (2) is arranged at the top of the crane grab body (1); Telescopic mechanism (3) is arranged at the top of the rotary mechanism (2); Counterweight (4) is fixedly installed on the telescopic mechanism (3); Connecting mechanism (5) is arranged at the top of the crane grab body (1), and is located at the periphery of the rotary mechanism (2); The tilt sensor (6) is fixedly installed at the top center of the crane grab body (1).

2. A bridge crane grab with anti-tilting function according to claim 1, characterized in that: The rotary mechanism (2) includes a fixed frame (21) fixedly installed at the top of the crane grab body (1), a shaft (22) penetrating through the fixed frame (21), and a gear one (23) fixedly connected to the bottom end of the shaft (22); The motor (24) is fixedly installed at the top of the crane grab body (1), the gear two (25) is fixedly connected to the output end of the motor (24), the gear two (25) is engagedly connected with the gear one (23), and the motor (24) is electrically connected with the tilt sensor (6) through the controller.

3. A bridge crane grab with anti-tilting function according to claim 2, characterized in that: The top of the fixed frame (21) is fixedly installed with a circular slide rail (26), a plurality of slide blocks (27) are slidably connected on the circular slide rail (26), and a plurality of the top of the slide block (27) is fixedly installed with a fixed disc (28), and the bottom of the fixed disc (28) is fixedly connected with the top end of the shaft (22).

4. A bridge crane grab with anti-tilting function according to claim 3, characterized in that: The telescopic mechanism (3) includes a fixed plate (31) fixedly installed at the top of the fixed frame (21), an electric telescopic rod (32) fixedly installed on the fixed plate (31), the output end of the electric telescopic rod (32) is fixedly connected with a connecting plate (34), the top of the connecting plate (34) is fixedly connected with the bottom of the counterweight (4), and the electric telescopic rod (32) is electrically connected with the tilt sensor (6) through the controller.

5. A bridge crane grab with anti-tilting function according to claim 4, characterized in that: Two driven rods (33) are movably penetrated on the fixed plate (31), two driven rods (33) are located on the two sides of the electric telescopic rod (32), and one end of the two driven rods (33) is fixedly connected with the rear side of the connecting plate (34).

6. The bridge crane grab bucket with anti-tilting function according to claim 1, characterized in that: The connecting mechanism (5) includes four steel wires (51) fixedly connected at the top of the crane grab body (1), a connecting disc (52) fixedly connected at the top of the four steel wires (51), and a triangular hole plate (53) fixedly installed at the top center of the connecting disc (52).

7. A bridge crane grab with anti-tilting function according to claim 6, characterized in that: Cross-shaped supporting plates (54) are sleeved on the four steel wires (51), and stop blocks (55) are fixedly installed on the four steel wires (51).

Citation Information

Patent Citations

  • Flatness detection device for building construction

    CN220690013U