A crane unloading device

Abstract

The application relates to the field of cranes, in particular to a crane discharging device, which comprises a first motor, the output end of the first motor is downwardly arranged and fixedly connected with a base, and further comprises: a first adjusting mechanism, the lower end of which is connected with two control ropes, the lower end of the control rope is fixedly connected with a connecting head, and the lower end of the connecting head is fixedly connected with a second pressing block; a second adjusting mechanism, the lower end of the connecting head is fixedly connected with a first pressing block; the front and back ends of the first pressing block and the second pressing block are both fixedly installed with two groups of symmetrically arranged second push rods, the elongated end of the second push rod is rotatably installed with a clamping block, and the clamping block is internally installed with a third adjusting mechanism; and a cleaning mechanism. The crane discharging device can sufficiently clean the tiny solid particles on the surface of a workpiece in the process of hoisting the workpiece, so that the solid particles are prevented from entering the external environment to cause damage to the body of a worker, and the generation of respiratory system diseases is avoided.

Description

Technical Field

[0001] This invention relates to the field of cranes, and more particularly to a material unloading device for cranes. Background Technology

[0002] After large, irregular tubular workpieces are sent out of the shot blasting machine, their surface temperature is often high. After the shot blasting machine cleans the workpiece surface, some tiny solid particles will be attached to it. These particles may include metal shavings, iron powder, iron oxides, etc. Long-term inhalation of these dusts may cause respiratory diseases, and may cause symptoms such as headache, drowsiness, and nausea, thus harming the health of the workers. However, existing technologies often lack effective means to clean the solid particles on the surface of the workpiece during the hoisting process. Summary of the Invention

[0003] The purpose of this invention is to solve the problem of the lack of effective technical means to clean solid particles on the surface of workpieces during hoisting, and to propose a material unloading device for cranes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a material unloading device for a crane, comprising a first motor, the first motor being slidably mounted below the working end of an indoor crane, the output end of the first motor facing downward and fixedly connected to a base, and further comprising:

[0005] The first adjustment mechanism is mounted on the base and its lower end is connected to two control cables. The lower end of each control cable is fixedly connected to a connector, and the lower end of the connector is fixedly connected to a second pressure block.

[0006] The second adjustment mechanism is installed at the lower end of the base, and the lower end of the second adjustment mechanism is connected to another connector. The lower end of this connector is fixedly connected to a first pressure block. Two sets of the second pressure blocks are located on both sides of the first pressure block, and a self-locking device is provided between the first pressure block and the second pressure block.

[0007] Two sets of second push rods are symmetrically arranged and fixedly installed at both ends of the first and second pressure blocks. A clamping block is rotatably installed at the extended end of the second push rod. A third adjustment mechanism is installed inside the clamping block. A small pressure block is rotatably installed at the lower end of the third adjustment mechanism. Two sets of second electromagnets are symmetrically arranged and fixedly installed at the end of the small pressure block near the side of the workpiece. A third motor is fixedly installed at the end of the small pressure block away from the workpiece. A roller is keyed to the output end of the third motor. Multiple first electromagnets are evenly distributed on the outer side of the roller near the workpiece.

[0008] A cleaning mechanism is fixedly installed on the side of the second pressure block away from the first pressure block, and the working end of the cleaning mechanism faces the workpiece side.

[0009] Preferably, the side of the first and second pressing blocks that contacts the workpiece surface is adapted to the shape of the workpiece.

[0010] Preferably, the first adjustment mechanism includes two sets of protective shells fixedly installed at the front end of the base and arranged symmetrically, and two sets of sliding grooves opened at the lower end of the base and arranged symmetrically. A winding device is fixedly installed inside the protective shell, and an electric slider is slidably installed inside the sliding groove. The upper end of the control cable is connected to the winding device after sliding through the electric slider and the side wall of the base in sequence.

[0011] Preferably, the second adjustment mechanism includes a first push rod fixedly installed at the middle position of the lower end of the base. The output end of the first push rod faces downward and is fixedly connected to a snap-fit ​​cover. The lower end of the snap-fit ​​cover is fixedly connected to another connector via a rope.

[0012] Preferably, the third adjustment mechanism includes a second motor fixedly installed inside the clamping block, the output end of the second motor being fixedly connected to a rotating frame, a rotating groove for the rotating frame to rotate being opened inside the clamping block, and a vertically arranged third push rod being fixedly installed inside the rotating frame, the extended end of the third push rod being rotatably connected to a small pressure block.

[0013] Preferably, the side of the small pressure block that contacts the workpiece is adapted to the shape of the workpiece.

[0014] Preferably, the cleaning mechanism includes a cleaning shell fixedly installed on the first pressure block, and a cleaning brush is fixedly installed on the side of the cleaning shell near the surface of the workpiece, with the working end of the cleaning brush in contact with the surface of the workpiece.

[0015] Preferably, an air extraction pipe is connected to one side of the cleaning shell, and the air extraction pipe is connected to an external air extraction device.

[0016] Preferably, a row of intelligent nozzles is fixedly installed on the side of the second pressure block near the workpiece. The intelligent nozzles are connected to an external supply device and can spray a protective layer onto the surface of the cleaned workpiece.

[0017] Preferably, the protective layer is a magnetron sputtered aluminum thin film, a nanocrystalline coating, or a WC-10Co-4Cr coating.

[0018] Compared with existing technologies, the advantages of this invention are:

[0019] 1. In this application, by setting up the first pressure block, the second pressure block, and the clamping block, the workpiece can be stably clamped, so that the workpiece can be lowered when it is moved to the appropriate position. On the other hand, it can clean the tiny solid particles, such as metal shavings, iron powder, and iron oxides, on the surface of the workpiece after shot blasting, thereby preventing these solid particles from entering the external environment and causing damage to the workers' bodies, and avoiding the occurrence of respiratory diseases.

[0020] 2. In this application, the two second pressure blocks can be adjusted to move to a suitable position, and then the electric slider can be controlled to be in the position inside the chute. The winding device inside the protective shell can appropriately wind or release the control cable, and cooperate with the first motor to control the base to rotate. When the workpiece is unloaded, after the surface is cleaned, the unloading equipment can be freely controlled to adjust the posture of the workpiece unloading, avoiding the trouble of adjusting the posture of the workpiece through other equipment later.

[0021] 3. In this application, the intelligent spray head can be used to spray a protective layer onto the surface of the cleaned workpiece. The type of protective layer can be selected as needed, thereby enhancing the workpiece's corrosion resistance, wear resistance, and other properties, effectively improving the quality of the workpiece. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a crane unloading device proposed in this invention;

[0023] Figure 2 This is a schematic diagram of the structure of a crane unloading device proposed in this invention from another perspective;

[0024] Figure 3 This is a schematic diagram of the initial state of a material unloading device for a crane proposed in this invention;

[0025] Figure 4 This is a schematic diagram of the structure of a crane unloading device proposed in this invention from another perspective in its initial state;

[0026] Figure 5 This is a schematic diagram of the structure of the second pressure block of the unloading device for a crane according to the present invention during movement;

[0027] Figure 6 This is a schematic diagram of the structure of the first and second pressure blocks of the unloading device for a crane proposed in this invention;

[0028] Figure 7 This is a schematic diagram of the structure of the first and second pressure blocks from another perspective of the material feeding device for a crane proposed in this invention;

[0029] Figure 8This is a schematic diagram of the structure of the second clamping block of the unloading device for a crane proposed in this invention;

[0030] Figure 9 This is a schematic diagram of the structure of the second clamping block from another perspective of the unloading device for a crane proposed in this invention;

[0031] Figure 10 This is a schematic diagram of the internal structure of a small pressure block in a crane unloading device proposed in this invention;

[0032] Figure 11 This is a schematic diagram of the clamping block part of a crane unloading device proposed in this invention.

[0033] In the diagram: 1. Base, 101. First motor, 102. Protective shell, 103. Slide groove, 2. Snap-fit ​​cover, 201. First push rod, 3. Electric slider, 301. Control cable, 4. First pressure block, 5. Second pressure block, 6. Intelligent nozzle, 7. Cleaning shell, 701. Cleaning brush, 702. Air extraction pipe, 8. Clamping block, 801. Rotating groove, 802. Second push rod, 9. Rotating frame, 10. Second motor, 11. Third push rod, 12. Small pressure block, 13. Roller, 131. Third motor, 14. First electromagnet, 15. Second electromagnet, 16. Connector. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Reference Figures 1 to 11 A material unloading device for a crane includes a first motor 101, which is slidably mounted below the working end of an indoor crane (as per the attached specification). Figure 3 As shown), the first motor 101 can slide freely below the working end of the indoor crane. The output end of the first motor 101 faces downward and is fixedly connected to the base 1. Two sets of protective shells 102 are fixedly installed at the front end of the base 1. A winding device is fixedly installed inside the protective shell 102. A control soft cable 301 is wound on the winding device. Two sets of sliding grooves 103 are symmetrically arranged at the lower end of the base 1. An electric slider 3 is slidably installed inside the sliding groove 103. The electric slider 3 can move freely inside the sliding groove 103. The end of the control soft cable 301 away from the protective shell 102 passes through the side wall of the base 1 and the electric slider 3 in sequence and then passes out from the lower end of the electric slider 3. After passing out, a connector 16 is fixedly connected. A second pressure block 5 is fixedly connected to the lower end of the connector 16.

[0036] A first push rod 201 is fixedly installed at the middle position of the lower end of the base 1. The output end of the first push rod 201 faces downward and is fixedly connected to a snap-fit ​​cover 2. The lower end of the snap-fit ​​cover 2 is fixedly connected to another connector 16 by a rope. The lower end of the connector 16 is fixedly connected to a first pressure block 4. The side of the first pressure block 4 and the second pressure block 5 that contacts the surface of the workpiece is adapted to the shape of the workpiece, so that the first pressure block 4 and the second pressure block 5 can fit more tightly to the surface of the workpiece.

[0037] Two sets of second pressure blocks 5 are located on both sides of the first pressure block 4. In the initial state, the second pressure blocks 5 and the first pressure block 4 are locked together. A self-locking device (not shown in the figure) is provided on the side where they are close to each other. The self-locking device is existing technology, and its specific structural design will not be described here. Two sets of second push rods 802 are fixedly installed at the front and rear ends of the first pressure block 4 and the second pressure block 5. A clamping block 8 is rotatably installed at the extended end of the second push rod 802. A second motor 10 is fixedly installed inside the clamping block 8. A rotating frame 9 is fixedly connected to the output end of the second motor 10. A rotating groove 801 is opened inside the clamping block 8 for the rotating frame 9 to rotate. A vertically arranged third push rod 11 is fixedly installed inside the rotating frame 9. A small pressure block 12 is rotatably connected to the extended end of the third push rod 11. The side of the small pressure block 12 that contacts the workpiece is adapted to the shape of the workpiece.

[0038] A third motor 131 is fixedly installed inside the small pressure block 12 at the end furthest from the workpiece. A roller 13 is keyed to the output end of the third motor 131, allowing the roller 13 to rotate inside the small pressure block 12. Multiple first electromagnets 14 are fixedly installed in a circular array on the outer side of the roller 13 closest to the workpiece. Since the workpiece is made of metals or alloys such as copper, iron, and steel, when the first electromagnets 14 are energized, they can adhere to the surface of the workpiece (as per the instruction manual). Figure 6 As shown in the figure, this ensures that the small pressure block 12 remains in full contact with the workpiece surface during movement. Two sets of symmetrically arranged second electromagnets 15 are fixedly installed at one end of the small pressure block 12 near the side of the workpiece. The second electromagnets 15 are in contact with the workpiece surface. When the second electromagnets 15 are energized, they can firmly adhere to the workpiece, thereby fixing the position of the small pressure block 12.

[0039] A cleaning shell 7 is fixedly installed on the side of the second pressing block 5 away from the first pressing block 4. A cleaning brush 701 is fixedly installed on the side of the cleaning shell 7 close to the workpiece surface. The working end of the cleaning brush 701 is set to contact the workpiece surface, so that when the cleaning shell 7 moves on the workpiece surface, the cleaning brush 701 can clean the fixed particles (which may include metal shavings, iron powder, iron oxides, etc.) attached to the workpiece surface. A suction pipe 702 is connected to one side of the cleaning shell 7. The suction pipe 702 is connected to an external suction device (not shown in the figure). When the external suction device is activated, the solid particles swept off the workpiece surface by the cleaning brush 701 can be collected and collected, which facilitates the next step of processing.

[0040] A row of intelligent nozzles 6 is fixedly installed on the side of the second pressure block 5 near the workpiece. The intelligent nozzles 6 are connected to an external supply device (not shown in the figure). The intelligent nozzles 6 can spray a protective layer onto the surface of the cleaned workpiece. This protective layer can improve the corrosion resistance or wear resistance of the workpiece. If it is necessary to improve corrosion resistance, a magnetron sputtered aluminum film or nanocrystalline coating can be selected; if it is necessary to improve wear resistance, a WC-10Co-4Cr coating sprayed by supersonic flame can be selected.

[0041] The specific working principle of the present invention is as follows: First, the entire feeding device is installed below the working end of the indoor crane. The first motor 101 installed on the top of the base 1 can freely rotate the angle of the base 1. The first motor 101 can freely slide inside the top rod of the crane. The output end of the first push rod 201 is downward and fixedly connected to the snap-fit ​​cover 2. The first pressure block 4 and the second pressure block 5 are both fixedly connected to the outer side of the connector 16.

[0042] In the initial state, the bottom of the snap-fit ​​cover 2 is connected to the connector 16 on the top of the first pressure block 4 by a rope of a fixed length. The two second pressure blocks 5 are located on both sides of the first pressure block 4. When the first pressure block 4 and the two second pressure blocks 5 are in contact, the first pressure block 4 can snap and lock with the second pressure blocks 5 on both sides. The sliding grooves 103 at the bottom of the two bases 1 are slidably connected to electric sliders 3. The protective shell 102 is equipped with a winding device, which winds up a control soft cable 301. The control soft cable 301 passes through the side wall of the base 1, enters from the side of the electric slider 3 and exits from the bottom. The electric slider 3 is equipped with a locking device, which can adjust whether the control soft cable 301 and the electric slider 3 are relatively stationary or moving at any time. Finally, the two control soft cables 301 are fixedly connected to the connectors 16 on the outside of the second pressure blocks 5.

[0043] When large workpieces after shot blasting need to be unloaded, the second push rod 802 is extended to its maximum position. Then, the two control cables 301, the crane, the first motor 101, and the first push rod 201 are controlled to make the first pressure block 4 and the second pressure block 5 fit against the top of the outer surface of the workpiece. Then, the second push rod 802 is retracted, and multiple clamping blocks 8 clamp the surface of the workpiece. Several third push rods 11 are extended to ensure that the small pressure blocks 12 press the workpiece. Then, the second electromagnet 15 is energized to increase the friction between the clamping blocks 8 and the workpiece, ensuring that the workpiece is stably clamped. After ensuring that the workpiece is clamped, the locking of the first pressure block 4 to the two second pressure blocks 5 is released, and the second electromagnet 15 fixed at one end of the two small pressure blocks 12 near the cleaning shell 7 of the second pressure block 5 is closed (to facilitate subsequent movement).

[0044] The second pressure block 5 is equipped with a second motor 10. The output end of the second motor 10 is fixedly connected to a rotating frame 9. The rotating frame 9 is fixedly connected to a third push rod 11. The output end of the third push rod 11 is downward and rotatably connected to the small pressure block 12. The second motor 10 installed inside the two clamping blocks 8 near the cleaning shell 7 of the second pressure block 5 works, causing the rotating frame 9 and the second motor 10 to rotate towards the cleaning shell 7. During this process, the third push rod 11 gradually extends to ensure that the roller 13 at the bottom of the small pressure block 12 contacts the workpiece surface. The third motor 131 controls the roller 13 to rotate. By adjustment, the first electromagnet 14 closest to the contact position between the roller 13 and the workpiece is energized. The rotation of the roller 13 can better drive the small pressure block 12 of the second pressure block 5 near the cleaning shell 7 to move a short distance along the cylindrical surface of the workpiece. After moving a certain distance, it stops. The second electromagnet 15 inside the small pressure block 12 near the cleaning shell 7 is energized again to ensure fixation. This process can be regarded as the two small pressure blocks 12 of the second pressure block 5 near the cleaning shell 7 "taking a step" outward and then "stopping".

[0045] After the small pressure block 12 at the end of the second pressure block 5 near the cleaning shell 7 completes the action of "taking a step" and then "stopping," the second electromagnet 15 inside the small pressure block 12 at the end of the second pressure block 5 away from the cleaning shell 7 stops working. Then, the control principle inside the clamping block 8 at the end of the cleaning shell 7 performs a similar work as the previous "taking a step." This process can be regarded as the two small pressure blocks 12 at the end of the second pressure block 5 away from the cleaning shell 7 "catching up with the previous step" and then "stopping."

[0046] The second pressing block 5 and its several smaller pressing blocks 12 repeat this process. The two second pressing blocks 5 will move completely on the outer surface of the workpiece. During this process, the air extraction pipe 702 of the cleaning shell 7 is connected to an external air extraction device. After the cleaning brush 701 sweeps away the dust and small particles attached to the surface of the workpiece, they are collected in a concentrated manner, which greatly reduces the negative impact on workers in a fine dust working environment. At the same time, the intelligent nozzle 6 at the bottom of the second pressing block 5 can spray a protective layer on the cleaned workpiece surface. The type of protective layer can be prepared in advance as needed.

[0047] For heavy workpieces, the placement posture and position are equally important. When the workpiece needs to be placed on its side, the two second pressure blocks 5 are adjusted to move to the appropriate position. Then, the electric slider 3 is controlled to be in the position inside the slide 103. The winding device inside the protective shell 102 appropriately winds up or releases the control cable 301, which works in conjunction with the first motor 101 to control the base 1 to rotate. After the surface of the workpiece is cleaned, the unloading equipment can be freely controlled to adjust the posture of the workpiece.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A material unloading device for a crane, comprising a first motor (101), the first motor (101) being slidably mounted below the working end of an indoor crane, the output end of the first motor (101) facing downwards and fixedly connected to a base (1), characterized in that, It also includes: The first adjustment mechanism is installed on the base (1) and its lower end is connected to two control soft cables (301). The lower end of the control soft cable (301) is fixedly connected to a connector (16), and the lower end of the connector (16) is fixedly connected to a second pressure block (5). The second adjustment mechanism is installed at the lower end of the base (1), and the lower end of the second adjustment mechanism is connected to another connector (16). The lower end of this connector (16) is fixedly connected to the first pressure block (4). Two sets of the second pressure blocks (5) are located on both sides of the first pressure block (4), and a self-locking device is provided between the first pressure block (4) and the second pressure block (5). Two sets of second push rods (802) are fixedly installed at the front and rear ends of the first pressure block (4) and the second pressure block (5). A clamping block (8) is rotatably installed at the extended end of the second push rod (802). A third adjustment mechanism is installed inside the clamping block (8). A small pressure block (12) is rotatably installed at the lower end of the third adjustment mechanism. Two sets of second electromagnets (15) are fixedly installed at the end of the small pressure block (12) near the side of the workpiece. A third motor (131) is fixedly installed at the end of the small pressure block (12) away from the workpiece. A roller (13) is keyed to the output end of the third motor (131). A plurality of first electromagnets (14) are evenly distributed on the outer side of the roller (13) near the workpiece. The cleaning mechanism is fixedly installed on the side of the second pressure block (5) away from the first pressure block (4), and the working end of the cleaning mechanism faces the workpiece side.

2. The unloading device for a crane according to claim 1, characterized in that, The side of the first pressing block (4) and the second pressing block (5) that contacts the surface of the workpiece is adapted to the shape of the workpiece.

3. The unloading device for a crane according to claim 1, characterized in that, The first adjustment mechanism includes two sets of protective shells (102) fixedly installed at the front end of the base (1) and arranged symmetrically, and two sets of sliding grooves (103) opened at the lower end of the base (1) and arranged symmetrically. A winding device is fixedly installed inside the protective shell (102), and an electric slider (3) is slidably installed inside the sliding groove (103). The upper end of the control cable (301) is connected to the winding device after sliding through the electric slider (3) and the side wall of the base (1) in sequence.

4. The unloading device for a crane according to claim 1, characterized in that, The second adjustment mechanism includes a first push rod (201) fixedly installed at the middle position of the lower end of the base (1). The output end of the first push rod (201) is downward and fixedly connected to a snap-fit ​​cover (2). The lower end of the snap-fit ​​cover (2) is fixedly connected to another connector (16) by a rope.

5. The unloading device for a crane according to claim 1, characterized in that, The third adjustment mechanism includes a second motor (10) fixedly installed inside the clamping block (8). The output end of the second motor (10) is fixedly connected to a rotating frame (9). The clamping block (8) has a rotating groove (801) for the rotating frame (9) to rotate. The rotating frame (9) has a vertically arranged third push rod (11) fixedly installed inside. The extended end of the third push rod (11) is rotatably connected to the small pressure block (12).

6. The unloading device for a crane according to claim 5, characterized in that, The side of the small pressure block (12) that contacts the workpiece is adapted to the shape of the workpiece.

7. The unloading device for a crane according to claim 1, characterized in that, The cleaning mechanism includes a cleaning shell (7) fixedly installed on the first pressure block (4). A cleaning brush (701) is fixedly installed on the side of the cleaning shell (7) near the surface of the workpiece. The working end of the cleaning brush (701) is in contact with the surface of the workpiece.

8. The unloading device for a crane according to claim 7, characterized in that, A suction pipe (702) is connected to one side of the cleaning shell (7), and the suction pipe (702) is connected to an external suction device.

9. The unloading device for a crane according to claim 1, characterized in that, The second pressure block (5) has a row of intelligent nozzles (6) fixedly installed on the side near the workpiece. The intelligent nozzles (6) are connected to an external supply device and can spray a protective layer onto the surface of the cleaned workpiece.

10. The unloading device for a crane according to claim 9, characterized in that, The protective layer is a magnetron sputtered aluminum thin film, a nanocrystalline coating, or a WC-10Co-4Cr coating.

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