Stacking crane of flour loading system

Abstract

The utility model relates to a stacker crane of a flour loading system. The stacker crane comprises a double-beam bridge type crown block, a lifting appliance is hung on a steel wire rope of the double-beam bridge type crown block, a rotary supporting bearing is installed in the center of the lower portion of the lifting appliance, a rotating shaft extending downwards is installed in the rotary supporting bearing, and a C-shaped pallet fork used for forking flour stacks is installed on the lower portion of the rotating shaft. A high-power servo motor for driving the rotating shaft to rotate is mounted in the center of the upper part of the lifting appliance; a motor shaft of the high-power servo motor is connected with the top of the rotating shaft through a coupler; and a guide mechanism for preventing the lifting appliance from rotating is arranged between the lifting appliance and the double-beam bridge type crown block. The stacking crane has the beneficial effects that after the double-beam bridge type crown block is transformed, flour stacks can be conveniently and directly hoisted for loading and stacking.

Description

Technical Field

[0001] This utility model relates to the field of flour loading equipment, and in particular to a stacking crane for a flour loading system. Background Technology

[0002] Currently, flour mills mainly rely on forklifts to transport flour stacks onto trucks. To save space, flour mills typically stack multiple flour stacks from bottom to top, but forklifts lifting stacks at higher levels are prone to tipping over. Overhead cranes are crucial lifting equipment in production workshops and warehouses, but existing overhead cranes require hooks and slings for handling goods and cannot directly lift flour stacks. Therefore, existing overhead cranes need to be modified to allow for direct lifting and loading of flour stacks onto trucks. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned problems in the existing technology and provide a stacking crane for a flour loading system.

[0004] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0005] A stacking crane for a flour loading system includes a double-girder overhead crane. A lifting device is suspended from a wire rope of the double-girder overhead crane. A slewing bearing is installed at the lower center of the lifting device, and a downwardly extending shaft is installed in the slewing bearing. A C-shaped fork for picking up flour stacks is installed at the lower part of the shaft. A high-power servo motor for driving the shaft to rotate is installed at the upper center of the lifting device. The motor shaft of the high-power servo motor is connected to the top of the shaft via a coupling. A guide mechanism to prevent the lifting device from rotating is installed between the lifting device and the double-girder overhead crane.

[0006] The lifting device includes a square ring-shaped lifting ring, a bearing seat fixed to the top of the lifting ring, an axle installed in the bearing seat, a pulley installed at each end of the axle, and the pulleys suspended on the wire rope of the double-beam bridge crane; a bearing support ring is fixed to the center of the bottom of the lifting ring, and the slewing support bearing is installed at the top of the bearing support ring.

[0007] The guiding mechanism includes two parallel mounting rods, two U-shaped first clamps, four lower mounting blocks, four upper mounting blocks, and four multi-stage guide rods. The mounting rods are connected to the first clamps with screws so that the first clamps and mounting rods are clamped at the lower part of the side arm of the lifting ring. Each mounting rod has a lower mounting block installed at both ends. The upper mounting blocks are installed on the lifting trolley of the double-girder overhead crane. The bottom of the multi-stage guide rods is fixed in the lower mounting blocks, and the top of the multi-stage guide rods is fixed in the upper mounting blocks.

[0008] The top of the lifting ring has two "U"-shaped second clamps, and a motor mounting plate is installed at the bottom of the two second clamps so that the second clamps cooperate with the motor mounting plate to hold the lifting ring. The high-power servo motor is installed at the bottom of the motor mounting plate.

[0009] The upper part of the rotating shaft is provided with a horizontally outwardly extending limiting ring, and the lower part of the rotating shaft is provided with a U-shaped hook groove, in which the top of the C-type fork is engaged.

[0010] The lifting ring and the C-type fork are fitted with three isolation rings to prevent the shaft from jumping up and down.

[0011] The C-type fork includes two parallel L-shaped booms and a U-shaped limiting rod. A straight first link, a straight second link, a straight third link, and a straight fourth link are sequentially fixed between the two L-shaped booms from top to bottom. A straight reinforcing rod is fixed between the middle of the first link and the middle of the second link. A U-shaped limiting groove is formed in the middle of the side of the first link away from the second link. The lower part of the rotating shaft is locked in the U-shaped limiting groove. The limiting rod is connected to the L-shaped boom and the first link with screws. A fork arm is fixed to the bottom of the L-shaped boom facing the first link, and the fork arm is parallel to the reinforcing rod.

[0012] The beneficial effects of this utility model are as follows: A lifting device is suspended on the wire rope of an existing double-girder overhead crane. The horizontal position and height of the lifting device are adjusted using the double-girder overhead crane. C-type forks are installed below the lifting device via a slewing bearing and a rotating shaft. A high-power servo motor installed in the lifting device drives the C-type forks to rotate, thereby adjusting the picking and unhooking direction of the C-type forks. This stacking crane, after modifying the double-girder overhead crane, facilitates the direct lifting and stacking of flour stacks for loading onto trucks. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the stacker crane in this utility model;

[0015] Figure 2 This is a side view of the stacker crane in this utility model.

[0016] Figure 3This is a schematic diagram of the assembly of the lifting device, slewing support bearing, rotating shaft, C-type fork, high-power servo motor, guide mechanism, second clamp and motor mounting plate in this utility model;

[0017] Figure 4 This is a schematic diagram of the lifting device in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the rotating shaft in this utility model;

[0019] Figure 6 This is a schematic diagram of the C-type fork structure in this utility model;

[0020] The following are the labels in the diagram: Double-girder overhead crane 100, wire rope 101, lifting trolley 102, lifting tool 1, lifting ring 11, axle seat 12, wheel axle 13, pulley 14, bearing support ring 15, slewing support bearing 2, rotating shaft 3, limit ring 31, U-shaped hook groove 32, C-shaped fork 4, L-shaped boom 41, limit rod 42, first connecting rod 43, second connecting rod 44, third connecting rod 45, fourth connecting rod 46, reinforcing rod 47, U-shaped limit groove 48, fork arm 49, high-power servo motor 5, guide mechanism 6, mounting rod 61, first clamp 62, lower mounting block 63, upper mounting block 64, multi-stage guide rod 65, second clamp 71, motor mounting plate 72, isolation ring 8. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 6 As shown, a stacking crane for a flour loading system includes a double-girder overhead crane 100.

[0023] The double-girder bridge crane 100 has a lifting device 1 suspended on its wire rope 101. Specifically, the lifting device 1 includes a square ring-shaped lifting ring 11. The top of the lifting ring 11 is fixedly connected to a bearing seat 12. A wheel axle 13 is installed in the bearing seat 12. A pulley 14 is installed at each end of the wheel axle 13. The pulley 14 is suspended on the wire rope 101 of the double-girder bridge crane 100.

[0024] A slewing support bearing 2 is installed at the lower center of the lifting device 1. Specifically, a bearing support ring 15 is fixedly connected to the bottom center of the lifting ring 11, and the slewing support bearing 2 is installed at the top of the bearing support ring 15.

[0025] The slewing bearing 2 is equipped with a downwardly extending shaft 3, and a horizontally extending limiting ring 31 is provided on the upper part of the shaft 3.

[0026] A C-shaped fork 4 for picking up flour stacks is installed at the lower part of the pivot 3. Specifically, a U-shaped hook groove 32 is provided at the lower part of the pivot 31, and the top of the C-shaped fork 4 is engaged in the U-shaped hook groove 32. The C-shaped fork 4 includes two parallel L-shaped booms 41 and a U-shaped limiting rod 42. A straight first connecting rod 43, a straight second connecting rod 44, a straight third connecting rod 45, and a straight fourth connecting rod are sequentially fixed between the two L-shaped booms 41 from top to top. 46. ​​A straight reinforcing rod 47 is fixed between the middle of the first link 43 and the middle of the second link 44. A U-shaped limiting groove 48 is provided in the middle of the side of the first link 43 away from the second link 44. The lower part of the rotating shaft 3 is stuck in the U-shaped limiting groove 48. The limiting rod 42 is connected to the L-shaped boom 41 and the first link 43 with screws. A fork arm 49 is fixed to the bottom of the L-shaped boom 41 facing the first link 43, and the fork arm 49 is parallel to the reinforcing rod 47.

[0027] A high-power servo motor 5 for driving the rotation of the shaft is installed at the upper center of the lifting device 1. The motor shaft of the high-power servo motor 5 is connected to the top of the shaft 3 through a coupling. The specific installation structure of the high-power servo motor 5 is as follows: two "U"-shaped second clamps 71 are clamped at the top of the lifting ring 11. A motor mounting plate 72 is installed at the bottom of the two second clamps 71 so that the second clamps 71 cooperate with the motor mounting plate 72 to hold the lifting ring 11. The high-power servo motor 5 is installed at the bottom of the motor mounting plate 72.

[0028] A guide mechanism 6 is installed between the lifting device 1 and the double-girder bridge crane 100 to prevent the lifting device 1 from rotating. Specifically, the guide mechanism 6 includes two parallel mounting rods 61, two "U"-shaped first clamps 62, four lower mounting blocks 63, four upper mounting blocks 64, and four multi-stage guide rods 65. The mounting rods 61 are connected to the first clamps 62 with screws so that the first clamps 62 and the mounting rods 61 are clamped in the lower part of the side arm of the lifting ring 11. A lower mounting block 63 is installed at each end of each mounting rod 61. The upper mounting blocks 64 are installed on the lifting trolley 102 of the double-girder bridge crane 100. The bottom of the multi-stage guide rods 65 is installed and fixed in the lower mounting blocks 63, and the top of the multi-stage guide rods 65 is installed and fixed in the upper mounting blocks 64.

[0029] Three isolation rings 8 are fitted on the pivot 3 between the lifting ring 11 and the C-type fork 4 to prevent the pivot 3 from jumping up and down.

[0030] A lifting device is suspended on the wire rope of an existing double-girder bridge crane, and the horizontal position and height of the lifting device are adjusted using the double-girder bridge crane.

[0031] The C-forks are mounted under the spreader by a combination of a slewing bearing and a rotating shaft. A high-power servo motor installed in the spreader drives the C-forks to rotate, thereby adjusting the picking and unpicking direction of the C-forks.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A stacking crane for a flour loading system, comprising a double-girder overhead crane, characterized in that: The double-girder overhead crane has a lifting device suspended from its wire rope. A slewing support bearing is installed at the lower center of the lifting device, and a downwardly extending shaft is installed in the slewing support bearing. A C-shaped fork for picking up flour stacks is installed at the lower part of the shaft. A high-power servo motor for driving the shaft to rotate is installed at the upper center of the lifting device. The motor shaft of the high-power servo motor is connected to the top of the shaft through a coupling. A guide mechanism to prevent the lifting device from rotating is installed between the lifting device and the double-girder overhead crane.

2. The stacker crane according to claim 1, characterized in that: The lifting device includes a square ring-shaped lifting ring, with a bearing seat fixed to the top of the lifting ring. A wheel axle is installed in the bearing seat, and a pulley is installed at each end of the wheel axle. The pulleys are suspended on the wire rope of the double-beam bridge crane. A bearing support ring is fixed to the center of the bottom of the lifting ring, and the slewing support bearing is installed at the top of the bearing support ring.

3. The stacker crane according to claim 2, characterized in that: The guiding mechanism includes two parallel mounting rods, two U-shaped first clamps, four lower mounting blocks, four upper mounting blocks, and four multi-stage guide rods. The mounting rods are connected to the first clamps with screws so that the first clamps and mounting rods are clamped at the lower part of the side arm of the lifting ring. A lower mounting block is installed at each end of each mounting rod. The upper mounting blocks are installed on the lifting trolley of the double-girder overhead crane. The bottom of the multi-stage guide rods is fixed in the lower mounting blocks, and the top of the multi-stage guide rods is fixed in the upper mounting blocks.

4. The stacker crane according to claim 2, characterized in that: The top of the lifting ring has two "U"-shaped second clamps, and a motor mounting plate is installed at the bottom of the two second clamps so that the second clamps cooperate with the motor mounting plate to hold the lifting ring. The high-power servo motor is installed at the bottom of the motor mounting plate.

5. The stacker crane according to claim 1, characterized in that: The upper part of the rotating shaft is provided with a horizontally outwardly extending limiting ring, and the lower part of the rotating shaft is provided with a U-shaped hook groove, in which the top of the C-type fork is engaged.

6. The stacker crane according to claim 2, characterized in that: Three isolation rings are fitted on the pivot between the lifting ring and the C-type fork to prevent the pivot from jumping up and down.

7. The stacker crane according to claim 1, characterized in that: The C-type fork includes two parallel L-shaped booms and a U-shaped limiting rod. A first linear link, a second linear link, a third linear link, and a fourth linear link are sequentially fixed between the two L-shaped booms from top to bottom. A straight reinforcing rod is fixed between the middle of the first link and the middle of the second link. A U-shaped limiting groove is formed in the middle of the side of the first link away from the second link. The lower part of the rotating shaft is engaged in the U-shaped limiting groove. The limiting rod is connected to the L-shaped boom and the first link with screws. A fork arm is fixed to the bottom of the L-shaped boom facing the first link, and the fork arm is parallel to the reinforcing rod.

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