Telescopic ship unloader hopper counterweight structure

Abstract

This invention provides a telescopic counterweight structure for a ship unloader hopper, comprising a ship unloader unit and a receiving device. The receiving device includes a welded steel frame and an installation platform. A stabilizing device is fixedly installed on the installation platform, and a receiving mechanism and a counterweight device slide within the stabilizing device. This application assembles the receiving device on the ship unloader using an installation platform, allowing the receiving device to move on the platform to perform the receiving operation. Simultaneously, the receiving device and the counterweight device extend and retract synchronously, maintaining the ship unloader's center of gravity during unloading, thus improving the ship unloader's stability. The retraction of the receiving device and the counterweight device does not affect the ship unloader's space occupancy, improving its usability. Furthermore, a limiting mechanism provides further support for the extended counterweight device, ensuring the stability of the moving counterweight. Sufficient stability is maintained even when the receiving device and the counterweight device extend synchronously, thereby shortening the unloading distance of the grab hopper and improving unloading efficiency.

Description

Technical Field

[0001] This invention relates to a counterweight structure for a telescopic ship unloader hopper, belonging to the technical field of ship unloaders. Background Technology

[0002] Ship unloaders are large mechanical devices used in ports and docks to unload bulk or packaged cargo from ships. The different materials transported (such as coal, ore, cement, grain, and fertilizer) have led to increasingly specialized designs for ship loading equipment, with requirements for explosion-proof, corrosion-proof, dust-proof, and pollution-proof features, and design standards becoming increasingly sophisticated. Bridge-type grab unloaders use grabs to extract bulk cargo (such as coal and ore) from the ship's hold, transferring it to the storage yard via a conveyor system. They are highly efficient and suitable for large quantities of bulk cargo. Ship unloaders utilize continuous conveying machinery to create a machine head that can lift bulk materials, or have self-loading capabilities, or be equipped with material handling and feeding devices. They continuously lift bulk materials from the ship's hold, unload them onto a boom or frame, and transport them to the main conveyor system on shore. Using ship unloaders can greatly improve unloading efficiency, minimize dust pollution, maintain environmental cleanliness, and are highly efficient and environmentally friendly.

[0003] A ship unloader is a large piece of equipment used for unloading cargo from ships. It uses a grab bucket to grab and transport materials, and is often equipped with a receiving device to shorten the unloading distance. It can work in conjunction with the grab bucket to greatly improve unloading efficiency. However, because the receiving bucket needs to extend out of the ship unloader when receiving materials, it causes the center of gravity to shift. The impact force generated when the material is dropped will further reduce the stability of the ship unloader. Long-term use will reduce the stability of the ship unloader and the receiving device, thereby reducing the safety performance of the ship unloader. Furthermore, when a counterweight is set to balance the center of gravity, the stability of the counterweight will also decrease. When the ship unloader vibrates, the counterweight will shake, which will also affect the ship unloader and reduce its performance. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, the present invention provides a counterweight structure for a telescopic unloader hopper.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions: This invention provides a telescopic ship unloader hopper counterweight structure, including a ship unloader device and a receiving device. The ship unloader device includes a gantry steel frame and a ship unloader boom. The ship unloader boom is fixedly installed to the top of the gantry steel frame. The receiving device includes a welded steel frame and an installation platform. The installation platform is fixedly installed to the top of the welded steel frame, and a stabilizing device is fixedly installed on the installation platform. The stabilizing device has a receiving mechanism and a counterweight device that slide inside it. The receiving mechanism and the counterweight device are respectively located on both sides of the stabilizing device. The bottom of the mounting platform is fixedly installed with a limiting mechanism, which includes a first limiting mechanism or a second limiting mechanism. The limiting mechanism is located on both sides of the counterweight device.

[0006] In this technical solution, the unloader boom is equipped with a grab bucket, the side wall of the gantry steel frame is fixedly connected to the welded steel frame, and the mounting platform on the welded steel frame is located below the grab bucket. A horizontal chute located below the grab bucket assembly is fixedly installed inside the gantry steel frame. The horizontal chute is composed of a transverse belt conveyor, and a ground belt conveyor located on the wharf shoreline is provided below the horizontal chute. Independent traveling devices are fixedly installed at the bottom of both the gantry steel frame and the welded steel frame, and the traveling devices on the same side are set on the same track.

[0007] In this technical solution, the stabilizing device includes a stabilizing plate with an E-shaped cross-section, which is installed on the top of the installation platform. There are two stabilizing plates, which are symmetrically arranged on both sides of the installation platform. Two grooves are formed on the inner side of the stabilizing plate, and a material receiving mechanism and a counterweight device are respectively provided in the two grooves.

[0008] In this technical solution, the receiving mechanism includes a first toothed rod, a hopper assembly, and a conveying assembly. The first toothed rod is slidably connected to the groove of the stabilizing plate. The hopper assembly is fixedly connected to the end of the first toothed rod. The conveying assembly is installed inside the hopper assembly. The conveying assembly consists of a drive device with a conveyor belt. The conveying assembly is provided with a receiving hopper, and the receiving hopper is fixedly connected to the top surface of the conveyor belt.

[0009] In this technical solution, the counterweight device includes a second toothed rod and a support plate. The second toothed rod is slidably connected to one of the grooves of the stabilizing plate. The end of the second toothed rod is fixedly connected to the support plate, and a housing is fixedly installed on the top of the support plate.

[0010] In this technical solution, multiple drive motors are fixedly installed on the outer wall of the stabilizing plate. The output end of each drive motor is fixedly connected to a gear. The gear is set inside the stabilizing plate between two grooves, and each gear is meshed with the first and second gears. A limiting plate is fixedly connected to the inner wall of the stabilizing plate near the hopper assembly. The limiting plate has an L-shaped cross-section, and the top of the limiting plate is engaged and slides inside the slot opened by the first gear.

[0011] In this technical solution, a limiting groove is formed inside the second rack, and a first limiting mechanism is slidably connected in the limiting groove. The first limiting mechanism includes a first cylinder, which is fixedly installed at the bottom of the installation platform. The telescopic end of the first cylinder is fixedly connected to a first connecting rod, and the end of the first connecting rod is fixedly connected to a first support block of a T-shaped structure. The first support block is slidably connected in the limiting groove, and a first connecting block is fixedly connected to one side of the bottom of the installation platform. The first connecting rod is inserted through the first support block.

[0012] In this technical solution, the second limiting mechanism includes a second cylinder, which is fixedly installed on the top of the installation platform. The telescopic end of the second cylinder is fixedly connected to the second connecting rod, and the end of the second connecting rod is fixedly connected to the second support block of the T-shaped structure. The second support block is slidably connected to the limiting groove. The top of the stabilizing plate is fixedly connected to the second connecting block, and the second connecting rod is inserted through the second support block.

[0013] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0014] The positive and progressive effects of this invention are as follows: The aforementioned telescopic unloader hopper counterweight structure involves assembling a receiving device on an installation platform on the unloader. This allows the receiving device to move on the platform to receive materials. Simultaneously, the receiving device and the counterweight extend and retract synchronously, maintaining the unloader's center of gravity during unloading and improving its stability. The retraction of the receiving device and counterweight does not affect the unloader's space requirements, further enhancing its usability. Furthermore, the limiting mechanism provides additional support for the extended counterweight, ensuring its stability during movement. Sufficient stability is maintained even when the receiving device and counterweight extend synchronously, thus minimizing the unloading distance of the grab bucket and improving unloading efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front view structure of one embodiment of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the ship unloading machine device of the present invention.

[0017] Figure 3 This is a cross-sectional view of the drive motor of the present invention.

[0018] Figure 4 This is a cross-sectional perspective view of the three-dimensional structure of the second toothed part of the present invention.

[0019] Figure 5 This is a cross-sectional view of the hopper assembly of the present invention.

[0020] Figure 6 This is a front view of the structure of the first limiting mechanism according to an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the external side view structure of the present invention.

[0022] Figure 8 This is a partial structural diagram of the second limiting mechanism according to another embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures 100. Ship unloader assembly; 101. Gantry steel frame; 102. Ship unloader boom; 103. Grab hopper; 200. Receiving device; 201. Welded steel frame; 202. Installation platform; 300. Stabilizing device; 301. Stabilizing plate; 302. Groove; 303. First toothed rod; 304. Hopper assembly; 305. Conveying assembly; 306. Receiving hopper; 307. Limiting plate; 308. Drive motor; 309. Gear; 400. Counterweight device; 401. Second rack; 402. Support plate; 403. Housing; 404. Limiting groove; 500, First limiting mechanism; 501, First cylinder; 502, First connecting rod; 503, First support block; 504, First connecting block; 600. Second limiting mechanism; 601. Second cylinder; 602. Second connecting rod; 603. Second support block; 604. Second connecting block. Detailed Implementation

[0024] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0025] like Figure 1-7 As shown, the telescopic ship unloader hopper counterweight structure includes a ship unloader device 100 and a receiving device 200. The ship unloader device 100 includes a gantry steel frame 101 and a ship unloader boom 102. The ship unloader boom 102 is fixedly installed to the top of the gantry steel frame 101. The receiving device 200 includes a welded steel frame 201 and an installation platform 202. The installation platform 202 is fixedly installed to the top of the welded steel frame 201. A stabilizing device 300 is fixedly installed on the installation platform 202. The stabilizing device 300 has a receiving mechanism and a counterweight device 400 sliding inside it. The receiving mechanism and the counterweight device 400 are respectively arranged on both sides of the stabilizing device 300. The bottom of the mounting platform 202 is fixedly installed with a limiting mechanism. The limiting mechanism includes a first limiting mechanism 500 or a second limiting mechanism 600. The limiting mechanism is located on both sides of the counterweight device 400.

[0026] The unloader boom 102 is equipped with a grab bucket 103. The side wall of the gantry steel frame 101 is fixedly connected to the welded steel frame 201, and the mounting platform 202 on the welded steel frame 201 is located below the grab bucket 103. A horizontal chute located below the bucket assembly 304 is fixedly installed inside the gantry steel frame 101. The horizontal chute is composed of a transverse belt conveyor, and a ground belt conveyor located on the wharf shoreline is provided below the horizontal chute. Independent traveling devices are fixedly installed at the bottom of both the gantry steel frame 101 and the welded steel frame 201, and the traveling devices on the same side are set on the same track.

[0027] In this technical solution, the grab bucket on the boom 102 of the ship unloader can perform material grabbing operations by moving back and forth and lifting up and down. After grabbing the material, it can be put into the receiving hopper 306 to realize the unloading of the material. The grab bucket 103 returns to continue grabbing the material, shortening the grabbing time. Compared with directly putting the material into the feeding belt along the coastline through the grab bucket 103, the unloading efficiency can be greatly improved.

[0028] The stabilizing device 300 includes a stabilizing plate 301 with an E-shaped cross-section, mounted on the top of the mounting platform 202. Two stabilizing plates 301 are symmetrically arranged on both sides of the mounting platform 202. Two grooves 302 are formed inside each stabilizing plate 301, and a receiving mechanism and a counterweight device 400 are respectively installed in each groove 302. The receiving mechanism includes a first toothed rod 303, a hopper assembly 304, and a conveying assembly 305. The first toothed rod 303 is slidably connected to the groove 302 of the stabilizing plate 301. The end of the first toothed rod 303 is fixedly connected to the hopper assembly 304, which houses the conveying assembly 305. The conveying assembly 305 consists of a drive device with a conveyor belt, and a receiving hopper 306 is provided on the conveying assembly 305. The receiving hopper 306 is fixedly connected to the top surface of the conveyor belt. A side door driven by a hydraulic device is hinged to the right side of the receiving hopper 306. The hydraulic device is preferably a hydraulic cylinder, which is rotatably mounted on the side wall of the receiving hopper 306. The telescopic end of the hydraulic cylinder is rotatably connected to the side plate. When the receiving hopper 306 moves from the left side to the right side of the conveyor belt, the hydraulic device works to open the side door. The bottom of the receiving hopper 306 has an inclined structure, which allows the material to fall and fall from the right side of the conveyor belt into the hopper assembly, and then be conveyed to the horizontal chute. The counterweight device 400 includes a second toothed rod 401 and a support plate 402. The second toothed rod 401 is slidably connected to one of the grooves 302 of the stabilizing plate 301. The end of the second toothed rod 401 is fixedly connected to the support plate 402, and a housing 403 is fixedly installed on the top of the support plate 402.

[0029] In this technical solution, the stabilizing plate 301 enables the stable movement of the first toothed rod 303 and the second toothed rod 401. The first toothed rod 303 can drive the hopper assembly 304 to move forward as far as possible, so that the receiving hopper 306 on the hopper assembly 304 can receive the material from the grab hopper 103. After receiving the material, the first toothed rod 303 retracts, and at the same time, the conveyor belt on the conveying assembly 305 drives the receiving hopper 306 to move, thereby achieving rapid feeding. Meanwhile, the second toothed rod 401 retracts, which can form a gravitational balance with the hopper assembly 304, so that the center of gravity is always kept at the gantry steel frame 101 to improve the structural stability.

[0030] Furthermore, the conveying assembly 305 is composed of a telescopic belt conveyor, which drives the upper front conveying roller to move through a horizontal drive device, and its belt drives the receiving hopper 306 to move horizontally, so as to realize the horizontal extension and retraction of the receiving hopper 306 on the conveying assembly 305.

[0031] Multiple drive motors 308 are fixedly installed on the outer wall of the stabilizing plate 301. The output end of each drive motor 308 is fixedly connected to a gear 309. The gear 309 is located inside the stabilizing plate 301 between two grooves 302, and each gear 309 is meshed with a first rack 303 and a second rack 401. A limiting plate 307 is fixedly connected to the inner wall of the stabilizing plate 301 near the hopper assembly 304. The limiting plate 307 has an L-shaped cross-section, and the top of the limiting plate 307 is engaged and slides inside the slot opened in the first rack 303.

[0032] In this technical solution, during material receiving, multiple drive motors 308 drive gears 309 to rotate. When gears 309 rotate, they can drive the first rack 303 and the second rack 401 to move inside the stabilizing plate 301. The first rack 303 and the second rack 401 can move synchronously in opposite directions inside the groove 302, thereby driving the receiving hopper 306 and the housing 403 to extend or retract simultaneously. When extended, the receiving hopper 306 performs the material receiving operation. After the material receiving is completed, the receiving hopper 306 moves to the unloading machine device 100 to perform the unloading operation.

[0033] Example 1: The second toothed rod 401 has a limiting groove 404 inside, the opening of the limiting groove 404 faces downward, and a first limiting mechanism 500 is slidably connected in the limiting groove 404. The first limiting mechanism 500 is installed at the bottom of the installation platform 202. The first limiting mechanism 500 includes a first cylinder 501, which is fixedly installed at the bottom of the installation platform 202. The telescopic end of the first cylinder 501 is fixedly connected to a first connecting rod 502. The end of the first connecting rod 502 is fixedly connected to a first support block 503 of a T-shaped structure, and the first support block 503 is slidably connected in the limiting groove 404. A first connecting block 504 is fixedly connected to one side of the bottom of the installation platform 202, and the first connecting rod 502 is inserted through the first support block 503.

[0034] In this technical solution, during the movement of the second rack 401, a limiting groove 404 is provided to allow the first connecting block 504 to slide inside it. When the second rack 401 extends, the first cylinder 501 drives the first connecting rod 502 to extend. The first connecting rod 502 drives the first connecting block 504 to translate and support the second rack 401. The first connecting rod 502 is limited by the first connecting block 504 to ensure its support stability. At this time, the first connecting block 504 overcomes the downward bending gravity of the second rack 401, thereby increasing the support force of the housing 403 and ensuring support stability.

[0035] Example 2: like Figure 8 As shown, a limiting groove 404 is formed inside the second toothed rod 401. The opening of the limiting groove 404 faces upward, and a second limiting mechanism 600 is slidably connected inside the limiting groove 404. The second limiting mechanism 600 is installed on the top of the stabilizing plate 301. The second limiting mechanism 600 includes a second cylinder 601, which is fixedly installed on the top of the mounting platform 202. The telescopic end of the second cylinder 601 is fixedly connected to the second connecting rod 602. The end of the second connecting rod 602 is fixedly connected to the second support block 603 of the T-shaped structure, and the second support block 603 is slidably connected inside the limiting groove 404. The top of the stabilizing plate 301 is fixedly connected to the second connecting block 604, and the second connecting rod 602 is inserted through the second support block 603.

[0036] In this technical solution, the second limiting mechanism 600 is set on the top of the stabilizing plate 301. The second connecting block 604 can bear the weight of the pulled-out second toothed rod 401 and the housing 403, ensuring the stability of the second toothed rod 401 after it moves.

[0037] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A telescopic ship unloader hopper counterweight structure, comprising a ship unloader device (100) and a receiving device (200), wherein the ship unloader device (100) comprises a gantry steel frame (101) and a ship unloader boom (102), the ship unloader boom (102) being fixedly installed to the top of the gantry steel frame (101), and the receiving device (200) comprising a welded steel frame (201) and an installation platform (202), the installation platform (202) being fixedly installed to the top of the welded steel frame (201), characterized in that, A stabilizing device (300) is fixedly installed on the installation platform (202); The stabilizing device (300) has a receiving mechanism and a counterweight device (400) sliding inside it respectively. The receiving mechanism and the counterweight device (400) are respectively arranged on both sides of the stabilizing device (300). The mounting platform (202) is fixedly installed with a limiting mechanism. The limiting mechanism includes a first limiting mechanism (500) or a second limiting mechanism (600). The limiting mechanism is located on both sides of the counterweight device (400). The stabilizing device (300) includes a stabilizing plate (301), the stabilizing plate (301) has an E-shaped cross-section and is installed on the top of the mounting platform (202). There are two stabilizing plates (301) and they are symmetrically arranged on both sides of the mounting platform (202). Two grooves (302) are formed on the inner side of the stabilizing plate (301). A receiving mechanism and a counterweight device (400) are respectively provided in the two grooves (302). The counterweight device (400) includes a second rack (401) and a support plate (402). The second rack (401) is slidably connected to one of the grooves (302) of the stabilizing plate (301). The end of the second rack (401) is fixedly connected to the support plate (402), and a housing (403) is fixedly installed on the top of the support plate (402). Multiple drive motors (308) are fixedly installed on the outer wall of the stabilizing plate (301). The output end of each drive motor (308) is fixedly connected to a gear (309). The gear (309) is set inside the stabilizing plate (301) between two grooves (302), and each gear (309) is meshed with the first rack (303) and the second rack (401). A limiting plate (307) is fixedly connected to the inner wall of the stabilizing plate (301) near the hopper assembly (304). The limiting plate (307) has an L-shaped cross-section, and the top of the limiting plate (307) is engaged and slides inside the slot opened by the first rack (303).

2. The counterweight structure of the telescopic unloader hopper as described in claim 1, characterized in that: The unloader boom (102) is equipped with a grab bucket (103). The side wall of the gantry steel frame (101) is fixedly connected to the welded steel frame (201), and the installation platform (202) on the welded steel frame (201) is located below the grab bucket (103). A horizontal chute located below the bucket assembly (304) is fixedly installed inside the gantry steel frame (101). The horizontal chute is composed of a transverse belt conveyor, and a longitudinal ground belt conveyor located on the wharf shoreline is provided below the horizontal chute. Independent walking devices are fixedly installed at the bottom of the gantry steel frame (101) and the welded steel frame (201), and the walking devices located on the same side are set on the same track.

3. The counterweight structure of the telescopic unloader hopper as described in claim 1, characterized in that: The receiving mechanism includes a first toothed rod (303), a hopper assembly (304), and a conveying assembly (305). The first toothed rod (303) is slidably connected to the groove (302) of the stabilizing plate (301). The hopper assembly (304) is fixedly connected to the end of the first toothed rod (303). The conveying assembly (305) is installed inside the hopper assembly (304). The conveying assembly (305) is composed of a drive device with a conveyor belt. The conveying assembly (305) is provided with a receiving hopper (306), which is fixedly connected to the top surface of the conveyor belt.

4. The counterweight structure of the telescopic unloader hopper as described in claim 1, characterized in that: The second rack (401) has a limiting groove (404) inside. A first limiting mechanism (500) is slidably connected in the limiting groove (404). The first limiting mechanism (500) is installed at the bottom of the installation platform (202). The first limiting mechanism (500) includes a first cylinder (501). The first cylinder (501) is fixedly installed at the bottom of the installation platform (202). The telescopic end of the first cylinder (501) is fixedly connected to the first connecting rod (502). The end of the first connecting rod (502) is fixedly connected to the first support block (503) of the T-shaped structure. The first support block (503) is slidably connected in the limiting groove (404). A first connecting block (504) is fixedly connected to one side of the bottom of the installation platform (202). The first connecting rod (502) and the first support block (503) are inserted through each other.

5. The counterweight structure of the telescopic unloader hopper as described in claim 1, characterized in that: The second limiting mechanism (600) includes a second cylinder (601). The second limiting mechanism (600) is installed on the top of the stabilizing plate (301). The second cylinder (601) is fixedly installed on the top of the stabilizing plate (301). The telescopic end of the second cylinder (601) is fixedly connected to the second connecting rod (602). The end of the second connecting rod (602) is fixedly connected to the second support block (603) of the T-shaped structure. The second support block (603) is slidably connected to the limiting groove (404). The top of the stabilizing plate (301) is fixedly connected to the second connecting block (604). The second connecting rod (602) is inserted through the second support block (603).

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