Novel grab bucket for crane

Abstract

The utility model discloses a novel grab bucket for a crane, which comprises a supporting seat, a sliding block slidably sleeved in the supporting seat, a rotating disc fixedly welded at the lower end of the sliding block, a motor fixedly mounted at the upper end of the supporting seat, a dustproof ring fixedly adhered to the edge of the supporting seat, and a dustproof sleeve fixedly welded at the lower end of the dustproof ring. A fixing seat is fixedly welded to the lower end of the rotating disc, a clamping jaw is slidably connected into the fixing seat, a clamping block is connected into the lower end of the clamping jaw in a clamped mode, a screw is connected into the clamping block through threads, a jaw head is fixedly welded to one end of the clamping block, and a shaft support is fixedly welded to the lower end of the rotating disc. The motor is started to drive the rotating disc and the sliding block to rotate, the clamping jaws are conveniently driven to rotate to adjust the clamping direction, the design of logs, a dustproof ring and a dustproof sleeve can be rapidly carried out, and dust impurities can be prevented from entering a gap between the supporting base and the rotating disc to affect rotating flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of crane devices, in particular to a novel grab for a crane. Background Art

[0002] Grab cranes can be classified into bridge grab cranes and gantry grab cranes according to the classification of cranes, and can also be divided into single-girder grab cranes and double-girder grab cranes.

[0003] Currently, in the existing grab of the utility model, a rotatable clamping plate is arranged inside the claw teeth, and the distance between the clamping plates in the left and right claw teeth is smaller. When the claw teeth move in the reverse direction, the two clamping plates can clamp a single log, so that the grab can not only grab a large number of logs but also adjust the position of a single log, which is convenient and practical.

[0004] For example, a grab of a crane disclosed in the authorized publication number CN214141258U includes a base plate, clamping claws, a driver and a single clamping mechanism; the number of the clamping claws is two, the two clamping claws are hinged on the base plate and are symmetric left and right, claw teeth are arranged on the clamping claws, the claw teeth on the left and right clamping claws are staggered, and the inside of the claw teeth is hollow; the two drivers respectively drive the two clamping claws to rotate; the grab of the utility model is used for grabbing large cylindrical objects such as logs, and the principle of grabbing a large number of logs is the same as that of the prior art; the single clamping mechanism includes a clamping plate and a central shaft, the central shaft is fixed inside the claw teeth, an installation hole is arranged in the middle of the clamping plate, the clamping plate is sleeved on the central shaft by using the installation hole and can rotate around the central shaft, and one end of the clamping plate extends out of the access hole as the clamping plate rotates. However, for such a grab of a crane, the clamping direction of the clamping claws is fixed, and it is not convenient to rotate and adjust the clamping direction.

[0005] As can be seen from the scheme disclosed in the above-mentioned existing patent document, the clamping direction of the clamping claws is fixed, and it is not convenient to rotate and adjust the clamping direction. Therefore, it is necessary to improve the prior art. Content of the Utility Model

[0006] The purpose of the utility model is to provide a novel grab for a crane, so as to solve the problem that the clamping direction of the clamping claws is fixed and it is not convenient to rotate and adjust the clamping direction.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A new type of grab for a crane, including a support base, a sliding block is slidably sleeved inside the support base, a rotating disk is fixedly welded to the lower end of the sliding block, a motor is fixedly installed at the upper end of the support base, a dust-proof ring is fixedly adhered to the edge of the support base, a dust-proof sleeve is fixedly welded to the lower end of the dust-proof ring, a fixed seat is fixedly welded to the lower end of the rotating disk, a clamping jaw is slidably connected inside the fixed seat, a clamping block is clamped inside the lower end of the clamping jaw, a screw is threadedly connected inside the clamping block, a claw head is fixedly welded to one end of the clamping block, and a shaft support is fixedly welded to the lower end of the rotating disk.

[0008] Preferably, the lower end surface of the support base is slidably connected to the rotating disk, the lower end of the motor shaft is fixedly connected to the rotating disk. By starting the motor to drive the rotating disk and the sliding block to rotate, it is convenient to drive the clamping jaw to rotate and adjust the clamping direction, so as to quickly handle logs.

[0009] Preferably, the rotating disk is sleeved inside the dust-proof sleeve, the support base is sleeved inside the dust-proof sleeve, and an installation frame is fixedly welded to the upper end of the support base. The design of the dust-proof ring and the dust-proof sleeve can prevent dust and impurities from entering the gap between the support base and the rotating disk, affecting the rotation flexibility.

[0010] Preferably, a telescopic cylinder is slidably connected inside the shaft support, a connecting seat is slidably connected to the lower end of the telescopic cylinder, and a connecting seat is fixedly welded to one side of the clamping jaw. By clamping the clamping jaw to the side of the log and starting the telescopic cylinder, the clamping jaw can be driven to clamp the log.

[0011] Preferably, one end of the screw is threadedly connected to the clamping jaw, and the lower end of the clamping jaw is closely attached to the claw head. By rotating and removing the screw, the clamping block loses its restraint, which is convenient for moving and removing the claw head for maintenance and replacement.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. The lower end surface of the support base of the present utility model is slidably connected to the rotating disk, the lower end of the motor shaft is fixedly connected to the rotating disk. By starting the motor to drive the rotating disk and the sliding block to rotate, it is convenient to drive the clamping jaw to rotate and adjust the clamping direction, so as to quickly handle logs.

[0014] 2. The rotating disk is sleeved inside the dust-proof sleeve of the present utility model, the support base is sleeved inside the dust-proof sleeve, and an installation frame is fixedly welded to the upper end of the support base. The design of the dust-proof ring and the dust-proof sleeve can prevent dust and impurities from entering the gap between the support base and the rotating disk, affecting the rotation flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 Schematic diagram of the dust cover of the present utility model;

[0017] Figure 3 Enlarged view of part A of the present utility model.

[0018] In the figure: 1 support base, 11 sliding block, 12 rotating disk, 13 motor, 14 dust-proof ring, 15 dust cover, 16 mounting bracket, 2 fixed base, 21 clamping jaw, 22 clamping block, 23 screw, 24 claw head, 25 shaft support, 26 telescopic cylinder, 27 connecting seat. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] Please refer to Figures 1-3 , a new type of grab for a crane shown in the figure, including a support base 1. A sliding block 11 is slidably sleeved inside the support base 1. A rotating disk 12 is fixedly welded to the lower end of the sliding block 11. A motor 13 is fixedly installed at the upper end of the support base 1. The model of the motor 13 is 6 - 400W, which belongs to the prior art. A dust-proof ring 14 is fixedly adhered to the edge of the support base 1. A dust cover 15 is fixedly welded to the lower end of the dust-proof ring 14. A fixed base 2 is fixedly welded to the lower end of the rotating disk 12. A clamping jaw 21 is slidably connected inside the fixed base 2. A clamping block 22 is clamped inside the lower end of the clamping jaw 21. A screw 23 is threadedly connected inside the clamping block 22. A claw head 24 is fixedly welded to one end of the clamping block 22. A shaft support 25 is fixedly welded to the lower end of the rotating disk 12.

[0022] In order to facilitate adjusting the clamping direction of the clamping jaw 21, the lower end surface of the support base 1 is slidably connected to the rotating disk 12. The lower end of the rotating shaft of the motor 13 is fixedly connected to the rotating disk 12. By starting the motor 13, the rotating disk 12 and the sliding block 11 are driven to rotate, which is convenient for driving the clamping jaw 21 to rotate and adjust the clamping direction, so as to quickly handle logs. The rotating disk 12 is sleeved inside the dust cover 15, and the support base 1 is sleeved inside the dust cover 15. A mounting bracket 16 is fixedly welded to the upper end of the support base 1. The designs of the dust-proof ring 14 and the dust cover 15 can prevent dust and impurities from entering the gap between the support base 1 and the rotating disk 12, affecting the rotational flexibility.

[0023] In this implementation scheme, starting the motor 13 drives the rotating disk 12 and the sliding block 11 to rotate, which facilitates driving the clamping jaw 21 to rotate and adjust the clamping direction, so as to quickly handle logs. The design of the dust-proof ring 14 and the dust-proof sleeve 15 can prevent dust and impurities from entering the gap between the support base 1 and the rotating disk 12, affecting the rotational flexibility.

[0024] Embodiment 2

[0025] Please refer to Figures 1-3 , this implementation method further elaborates on Embodiment 1. As shown in the figure, a new type of grab for a crane includes a support base 1. A sliding block 11 is slidably sleeved inside the support base 1. The lower end of the sliding block 11 is fixedly welded with a rotating disk 12. An electric motor 13 is fixedly installed at the upper end of the support base 1. A dust-proof ring 14 is fixedly adhered to the edge of the support base 1. The lower end of the dust-proof ring 14 is fixedly welded with a dust-proof sleeve 15. The lower end of the rotating disk 12 is fixedly welded with a fixed seat 2. A clamping jaw 21 is slidably connected inside the fixed seat 2. A clamping block 22 is clamped inside the lower end of the clamping jaw 21. A screw 23 is threadedly connected inside the clamping block 22. One end of the clamping block 22 is fixedly welded with a claw head 24. The lower end of the rotating disk 12 is fixedly welded with a shaft support 25.

[0026] To facilitate the removal of the claw head 24 for maintenance and replacement, a telescopic cylinder 26 is slidably connected inside the shaft support 25. The lower end of the telescopic cylinder 26 is slidably connected with a connecting seat 27. A connecting seat 27 is fixedly welded to one side of the clamping jaw 21. By clamping the clamping jaw 21 against the side of the log and starting the telescopic cylinder 26, the clamping jaw 21 can be driven to clamp the log. One end of the screw 23 is threadedly connected to the clamping jaw 21. The lower end of the clamping jaw 21 is closely attached to the claw head 24. By rotating and removing the screw 23, the clamping block 22 is released from restraint, facilitating the removal of the claw head 24 for maintenance and replacement.

[0027] In this implementation scheme, by clamping the clamping jaw 21 against the side of the log and starting the telescopic cylinder 26, the clamping jaw 21 can be driven to clamp the log. By rotating and removing the screw 23, the clamping block 22 is released from restraint, facilitating the removal of the claw head 24 for maintenance and replacement.

[0028] For this new type of grab for a crane, starting the motor 13 drives the rotating disk 12 and the sliding block 11 to rotate, which facilitates driving the clamping jaw 21 to rotate and adjust the clamping direction, so as to quickly handle logs. The design of the dust-proof ring 14 and the dust-proof sleeve 15 can prevent dust and impurities from entering the gap between the support base 1 and the rotating disk 12, affecting the rotational flexibility. By clamping the clamping jaw 21 against the side of the log and starting the telescopic cylinder 26, the clamping jaw 21 can be driven to clamp the log. By rotating and removing the screw 23, the clamping block 22 is released from restraint, facilitating the removal of the claw head 24 for maintenance and replacement.

[0029] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new grab bucket for a crane, comprising a support base (1), characterized in that: The support seat (1) is internally slidably sleeved with a sliding block (11), the lower end of the sliding block (11) is fixedly welded with a rotating disk (12), the upper end of the support seat (1) is fixedly mounted with a motor (13), the edge of the support seat (1) is fixedly adhered with a dustproof ring (14), the lower end of the dustproof ring (14) is fixedly welded with a dustproof sleeve (15), the lower end of the rotating disk (12) is fixedly welded with a fixed seat (2), the internal slidably connected with a clamping claw (21), the lower end of the clamping claw (21) is internally clamped with a clamping block (22), the interior of the clamping block (22) is threadedly connected with a screw (23), one end of the clamping block (22) is fixedly welded with a claw head (24), and the lower end of the rotating disk (12) is fixedly welded with an axle support (25).

2. A new type of grab bucket for crane according to claim 1, characterized in that: The lower end surface of the support seat (1) is slidably connected to the rotating disk (12), and the lower end of the rotating shaft of the motor (13) is fixedly connected to the rotating disk (12).

3. A new type of grab bucket for crane according to claim 1, characterized in that: The interior of the dust cover (15) is sleeved on the rotating disk (12), and the interior of the dust cover (15) is sleeved on the supporting seat (1), and a mounting frame (16) is fixedly welded on the upper end of the supporting seat (1).

4. A new type of grab bucket for crane according to claim 1, characterized in that: The interior of the shaft support (25) is slidably connected to a telescopic cylinder (26), the lower end of the telescopic cylinder (26) is slidably connected to a connecting seat (27), and one side of the clamping jaw (21) is fixedly welded with the connecting seat (27).

5. The new grab bucket for crane according to claim 1 is characterized in that: One end of the screw (23) is connected to the clamping jaw (21) through a thread, and the lower end of the clamping jaw (21) is tightly attached to the claw head (24).

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