Crane grab bucket for material stacking

Abstract

The crane grab bucket comprises a lantern ring, a support and a hanging ring, the support is fixedly arranged at the top of the lantern ring, the hanging ring is fixedly arranged at the top of the support, a clamping assembly is arranged in the lantern ring, and a driving assembly is arranged on the outer wall of the lantern ring. According to the device, only one motor is needed, the four clamping plates can be in a synchronous operation state, the mechanical structure is simple, the operation mode is convenient and fast, and it can be known that by means of the device, the difficulty of operating and using the device by workers is lowered, and the difficulty and cost of follow-up manufacturing of the device are reduced. By means of the design of the force control function, the clamping force of the clamping plates to materials can be controlled within the range required by workers, the phenomenon that the clamping force of the clamping plates to the materials is insufficient or too sufficient is avoided, and therefore by means of the device, the stability of the clamping plates to the materials is guaranteed, and the working efficiency is improved. And the materials are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a crane grab bucket for material stacking. Background Art

[0002] Grab crane is an automatic picking machine. Its grabbing and unloading actions are controlled by the ship unloader driver, without the need for auxiliary personnel, thus avoiding the heavy labor of workers, saving auxiliary work time, and greatly improving loading and unloading efficiency. Grab cranes are generally divided into bridge grab cranes, gantry grab cranes, and folding arm grab cranes. The grab cranes that people usually refer to are folding arm grab cranes, such as log cranes.

[0003] The patent name is "CN214652934U", which is published as: A crane grab for material stacking. The device in the public document is equipped with a first electric push rod, a second electric push rod, a motor and other mechanical transmission components to clamp the material. This mechanical design method is too complicated, which increases the difficulty and cost of subsequent production of the device. In addition, the device in the public document cannot control the force of material clamping. When the force is insufficient, the material is not firmly grasped. When the force is too strong, it is easy to damage the material. Based on this, the utility model designs a crane grab for material stacking to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a crane grab bucket for material stacking to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crane grab for material stacking, comprising a collar, a bracket and a hanging ring, the bracket being fixedly arranged at the top of the collar, the hanging ring being fixedly arranged at the top of the bracket, a clamping assembly being arranged inside the collar, a driving assembly being arranged on the outer wall of the collar, the clamping assembly comprising a rotating sleeve connected to the four corners inside the collar, a screw being arranged on the internal thread of the rotating sleeve, and a connecting plate being fixedly arranged on the inner side of the screw, a plurality of springs being fixedly arranged on the inner side of the connecting plate, a clamping plate being fixedly arranged at one end of the spring away from the connecting plate, a sliding rod fixedly arranged on the outer side of the clamping plate slidingly passing through the connecting plate and the collar, the driving assembly comprising a motor fixedly arranged on the outer wall of the collar, a driving gear fixedly arranged on the outside of the head end of the motor being meshed with the annular rack gear teeth connected to the top of the collar, and a driven gear fixedly arranged on the outside of the rotating sleeve being meshed with the annular rack gear teeth.

[0006] Furthermore, the center of the annular rack is concentric with the center of the ring, and a guide groove is integrally provided at the top of the inner portion of the ring in an annular direction.

[0007] Furthermore, the center of the guide groove is concentric with the center of the annular rack, and sliders are slidably connected on the left and right sides of the guide groove.

[0008] Furthermore, the cross-section of the slider and the guide groove is T-shaped, and the top surface of the slider is fixedly connected to the bottom surface of the annular rack.

[0009] Furthermore, a pressure sensor is fixedly arranged at the middle end of the inner side of the connecting plate, and a pressure block fixedly arranged at the middle end of the outer side of the clamping plate corresponds to the pressure sensor one by one.

[0010] Furthermore, a warning light is fixedly provided on the top of the connecting plate, and a controller fixedly provided on the outer wall of the bracket is connected to the warning light and the pressure sensor through a wire.

[0011] Furthermore, the bracket is designed to be U-shaped, and the angle between the two clamps is 90 degrees.

[0012] Furthermore, a counterweight block is fixedly provided on the outer wall of the collar, and the counterweight block and the motor are symmetrically distributed with the center of the collar as the center.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model only needs one motor to put four splints into a synchronous operation state. The mechanical structure is simple and the operation method is convenient. It can be seen that by using the device in this application, not only the difficulty of the staff to operate and use the device is reduced, but also the difficulty and cost of the subsequent production of the device are reduced.

[0015] 2. The design of the force control function of the utility model can control the clamping force of the splint on the material within the range required by the staff, thereby avoiding the occurrence of insufficient or excessive clamping force of the splint on the material. It can be seen that by using the device in this application, not only the stability of the splint clamping the material is ensured, but also the material is protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a front perspective view of a crane grab for material stacking according to the utility model;

[0018] Figure 2This is a bottom-up stereogram of a crane grab for material stacking according to the utility model;

[0019] Figure 3 This is a three-dimensional diagram of the internal structure of a crane grab bucket for material stacking according to the utility model;

[0020] Figure 4 A three-dimensional view of the collar and the guide groove;

[0021] Figure 5 A three-dimensional diagram of the annular rack and the slider;

[0022] Figure 6 It is a three-dimensional diagram of a sleeve, a rotating sleeve, a screw, a motor, a driving gear and a driven gear.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-ring, 2-bracket, 3-hanging ring, 4-clamping assembly, 5-driving assembly, 401-swivel sleeve, 402-screw, 403-connecting plate, 404-spring, 405-clamping plate, 406-slide rod, 501-motor, 502-driving gear, 503-annular rack, 504-driven gear, 6-guide groove, 7-slider, 8-pressure sensor, 9-pressure block, 10-warning light, 11-controller, 12-counterweight. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] like Figure 1 , Figure 2 , Figure 3As shown, the device includes a collar 1, a bracket 2 and a hanging ring 3. The bracket 2 is fixedly arranged on the top of the collar 1, and the hanging ring 3 is fixedly arranged on the top of the bracket. A clamping assembly 4 is arranged inside the collar 1, and a driving assembly 5 is arranged on the outer wall of the collar 1. The clamping assembly 4 includes a rotating sleeve 401 connected to the four corners inside the collar 1, and a screw 402 is arranged on the internal thread of the rotating sleeve 401, and a connecting plate 403 is fixedly arranged on the inner side of the screw 402, and a plurality of springs 404 are fixedly arranged on the inner side of the connecting plate 403. A clamping plate 405 is fixed to one end of the spring 404 away from the connecting plate 403, and a sliding rod 406 fixed on the outside of the clamping plate 405 slides through the connecting plate 403 and the ring 1. The driving assembly 5 includes a motor 501 fixed to the outer wall of the ring 1, and a driving gear 502 fixedly sleeved on the outside of the head end of the motor 501 is meshed with the teeth of an annular rack 503 connected to the top of the ring 1, and a driven gear 504 fixedly sleeved on the outside of the rotating sleeve 401 is meshed with the teeth of the annular rack 503.

[0028] The staff first connects the lifting end of the crane with the hanging ring 3, and then uses the crane to cover the material with the hanging ring 3 together with the bracket 2 and the ring 1, and then turns on the forward rotation function of the motor 501. The motor 501 drives the active gear 502 to control the annular rack 503 together with the driven gear 504 and the rotating sleeve 401 to rotate. Through the threaded transmission of the rotating sleeve 401 and the screw 402, the screw 402 drives the connecting plate 403 together with the spring 404, the clamping plate 405 and the sliding rod 406 to move along the direction of the material. At this time, the four clamping plates 405 simultaneously apply clamping force to the four sides of the material. Through the reaction force of the material, the clamping plate 405 drives the sliding rod 406 to move along the outer direction of the ring 1, and the spring 404 is deformed. Through the reaction force of the spring 404, the clamping plate 405 applies a soft clamping force to the material.

[0029] Example 2

[0030] like Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, the center of the annular rack 503 is concentric with the center of the ring 1, and a guide groove 6 is integrally provided at the top of the inner part of the ring 1 in an annular direction. The center of the guide groove 6 is concentric with the center of the annular rack 503, and sliders 7 are slidably connected on the left and right sides of the inner part of the guide groove 6. The cross-sections of the slider 7 and the guide groove 6 are T-shaped. The top surface of the slider 7 is fixedly connected to the bottom surface of the annular rack 503. A pressure sensor 8 is fixedly provided at the middle end of the inner side of the connecting plate 403, and a pressure block 9 fixedly provided at the middle end of the outer side of the splint 405 corresponds to the pressure sensor 8 one by one. A warning light 10 is fixedly provided on the top of the connecting plate 403, and a controller 11 fixedly provided on the outer wall of the bracket 2 is connected to the warning light 10 and the pressure sensor 8 through a wire. The bracket 2 is designed in a U-shaped direction, and the angle between the splints 405 is 90 degrees. A counterweight 12 is fixedly provided on the outer wall of the ring 1, and the counterweight 12 and the motor 501 are symmetrically distributed with the center of the ring as the center.

[0031] According to the operation mode in Example 1, when the active gear 502 controls the annular rack 503 to rotate, the annular rack 503 drives the slider 7 to move along the direction of the guide groove 6, thereby ensuring that the center of the annular rack 503 is always concentric with the center of the ring 1 when rotating. In addition, when the clamping plate 405 drives the slide bar 406 to move along the direction of the outer side of the ring 1, the clamping plate 405 drives the pressure block 9 to apply an extrusion force to the pressure sensor 8. When the force of the extrusion force on the pressure sensor 8 reaches the set value, the warning light 10 lights up. At this time, the clamping force of the clamping plate 405 on the material has reached the required value, and the clamping force of the four clamping plates 405 on the material is consistent. The staff then turns off the motor 501, and then uses the crane to stack the device together with the material, and then turns on the reversing function of the motor 501, so that the clamping plate 405 is reset, that is, the clamping force of the clamping plate 405 on the material is eliminated, and the staff repeats the above steps to grab and stack the new material. The design of the counterweight 12 can prevent the collar 1 from being in a tilted state when it is sleeved on the material, thereby ensuring the stability of the collar 1 when it is sleeved on the material.

Claims

1. A crane grab for stacking materials, comprising a collar (1), a bracket (2) and a hanging ring (3), characterized in that: The bracket (2) is fixedly mounted on the top of the collar (1), the hanging ring (3) is fixedly mounted on the top of the bracket, a clamping assembly (4) is arranged inside the collar (1), a driving assembly (5) is arranged on the outer wall of the collar (1), the clamping assembly (4) comprises a rotating sleeve (401) connected to the four corners inside the collar (1), a screw rod (402) is arranged on the internal thread of the rotating sleeve (401), a connecting plate (403) is fixedly mounted on the inner side of the screw rod (402), a plurality of springs (404) are fixedly mounted on the inner side of the connecting plate (403), and the springs (404) A clamping plate (405) is fixedly provided at one end away from the connecting plate (403); a sliding rod (406) fixedly provided on the outside of the clamping plate (405) slides through the connecting plate (403) and the collar (1); the driving assembly (5) comprises a motor (501) fixedly provided on the outer wall of the collar (1); a driving gear (502) fixedly provided on the outside of the head end of the motor (501) meshes with the gear teeth of an annular rack (503) connected to the top of the collar (1); and a driven gear (504) fixedly provided on the outside of the rotating sleeve (401) meshes with the gear teeth of the annular rack (503).

2. The material stacking crane grab bucket according to claim 1, characterized in that: The center of the annular rack (503) is designed to be concentric with the center of the ring (1), and the top of the inner part of the ring (1) is provided with a guide groove (6) in an annular shape.

3. The material stacking crane grab bucket according to claim 2, characterized in that: The center of the guide groove (6) is concentric with the center of the annular rack (503), and sliding blocks (7) are slidably connected to the left and right sides of the guide groove (6).

4. The crane grab bucket for material stacking according to claim 3, characterized in that: The cross-sections of the slider (7) and the guide groove (6) are T-shaped, and the top surface of the slider (7) is fixedly connected to the bottom surface of the annular rack (503).

5. The crane grab bucket for material stacking according to claim 1, characterized in that: A pressure sensor (8) is fixedly arranged at the middle end of the inner side of the connecting plate (403), and a pressure block (9) fixedly arranged at the middle end of the outer side of the clamping plate (405) corresponds to the pressure sensor (8) in a one-to-one manner.

6. The crane grab bucket for material stacking according to claim 1, characterized in that: A warning light (10) is fixedly provided on the top of the connection plate (403), and a controller (11) fixedly provided on the outer wall of the bracket (2) is connected to the warning light (10) and the pressure sensor (8) via a wire.

7. The crane grab bucket for material stacking according to claim 1, characterized in that: The bracket (2) is designed to be U-shaped, and the angle between the clamping plates (405) is 90 degrees.

8. The crane grab bucket for material stacking according to claim 1, characterized in that: A counterweight (12) is fixedly disposed on the outer wall of the collar (1), and the counterweight (12) and the motor (501) are symmetrically distributed with the center of the collar as the center.

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