A wharf conveyor discharging device with pressure detection function
Patent Information
- Application Number
- CN202522558503.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-02
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-02
AI Technical Summary
During the unloading process, the unloading device of the dock conveyor is prone to blockage by bulk cargo such as coal and ore, which can lead to equipment damage and operation interruption.
A dock conveyor unloading device with pressure detection function was designed, which includes a blockage clearing mechanism and an anti-blockage mechanism. The device uses a pressure sensor to detect blockage, removes blockage through an electric telescopic rod and an expansion block, and prevents blockage through a guide plate and a vibrating ball.
It effectively solved the blockage problem during the conveying process, ensured the continuous operation of the equipment, avoided equipment damage, and improved conveying efficiency.
Smart Images
Figure CN224929749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of conveyor unloading technology, and in particular to a dock conveyor unloading device with pressure detection function. Background Technology
[0002] Dock conveyors are key equipment used for loading, unloading, handling, and transshipment of cargo at port terminals. They enable rapid and efficient transport of goods, employing a continuous conveying principle with a conveying capacity of thousands of tons per hour, suitable for loading and unloading bulk cargo such as coal, ore, and grain. By selecting conveyor belts of different materials and structures, they can adapt to various material characteristics.
[0003] In the existing technology, the unloading device of the dock conveyor uses a telescopic unloading cylinder, the length of which can be adjusted as needed. It is commonly used in scenarios where materials need to be unloaded at different heights or positions, such as during ship loading and unloading, and can adapt to changes in the height of materials in the ship's hold.
[0004] However, during the feeding process, bulk commodities such as coal and ore can clog the feeding hopper, causing interruptions in dock transportation operations and potentially damaging the equipment. Utility Model Content
[0005] The purpose of this invention is to address the issue of continuous conveying, with a conveying capacity of several thousand tons per hour, suitable for loading and unloading bulk cargo such as coal, ore, and grain. By selecting conveyor belts of different materials and structures, it can adapt to the problem of silt deposition on riverbanks due to various material characteristics. This invention proposes a dock conveyor unloading device with pressure detection function.
[0006] The technical solution of this utility model is as follows: a dock conveyor unloading device with pressure detection function, applied to an unloading conveyor, wherein a telescopic unloading cylinder is fixedly installed at the end of the unloading conveyor, and a guide block is fixedly installed at the end of the unloading conveyor; characterized in that it further includes:
[0007] A blockage clearing mechanism includes a circular frame fixedly installed at the bottom of a telescopic discharge cylinder, a guide plate with a built-in pressure sensor rotatably connected to the circular frame, an electric telescopic rod fixedly installed on the outer wall of the guide plate, the electric telescopic rod being electrically connected to the pressure sensor, an expansion block being slidably connected to the inner wall of the telescopic discharge cylinder, and a transmission component being provided between the bottom of the electric telescopic rod and the expansion block.
[0008] The top of the guide plate is equipped with an anti-blocking mechanism.
[0009] Optionally, the transmission component includes a pressure rod, the top of which is fixedly connected to an electric telescopic rod, and a pressing block is fixedly installed at the bottom of the pressure rod, with the outer arc surface of the pressing block contacting the expanding block.
[0010] Optionally, the top of the expanding block is provided with a groove with a trapezoidal cross-section, the cross-section of the extrusion block is trapezoidal, there is a gap between the inner arc surface of the extrusion block and the expanding block, and a reset spring is elastically connected between the outer arc surface of the expanding block and the telescopic feeding cylinder.
[0011] Optionally, the top of the expanding block is slidably connected to the telescopic feeding cylinder, and multiple expanding blocks are provided and distributed in a ring at equal angles inside the telescopic feeding cylinder.
[0012] Optionally, the anti-clogging mechanism includes an extension rod fixedly installed on the top of the guide plate, and a counterweight is fixedly installed on the outer wall of the extension rod. The weight of the counterweight is greater than the weight of the guide plate. In the initial state, the guide plate closes the bottom opening of the telescopic feed cylinder.
[0013] Optionally, an elastic impact block is fixedly installed on the side of the counterweight facing the telescopic feed cylinder, and the telescopic feed cylinder is located on the moving path of the elastic impact block.
[0014] Optionally, the inner wall of the telescopic feed cylinder is provided with a cavity, and a vibrating ball is slidably connected inside the cavity.
[0015] Optionally, the unloading conveyor is inclined, and the top of the unloading conveyor conveys coal and ore.
[0016] Compared with the prior art, the present invention has the following beneficial technical effects:
[0017] In this invention, when the telescopic feeding cylinder is blocked, the coal inside the telescopic feeding cylinder no longer flows, the pressure sensor no longer bears force, the electric telescopic rod extends and pushes the extrusion block with the pressure rod, and the extrusion block uses its outer arc surface to extrude the expanding block. At this time, the expanding block moves, thereby increasing the volume inside the telescopic feeding cylinder and increasing the internal cross-sectional area of the telescopic feeding cylinder. Due to the increase in cross-sectional area, the extrusion pressure between the coal inside the telescopic feeding cylinder decreases, causing it to loosen and flow normally, thus solving the blockage problem in the conveying process.
[0018] In this invention, the amount of coal flowing inside the telescopic feed cylinder fluctuates, so the guide plate will rotate continuously. The guide plate uses a counterweight and an elastic impact block to strike the telescopic feed cylinder, thereby generating vibration, which shakes off the coal adhering to the inner wall of the telescopic feed cylinder to avoid blockage. After the elastic impact block strikes the counterweight, the vibrating ball vibrates to increase the vibration frequency of the telescopic feed cylinder and improve the vibration effect. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2This is a schematic diagram of the telescopic feed cylinder structure;
[0021] Figure 3 This is a cross-sectional view of the hole-reducing block structure;
[0022] Figure 4 This is a cross-sectional view of the telescopic feed cylinder structure;
[0023] Figure 5 for Figure 4 A magnified schematic diagram of the vibrating sphere structure in part A.
[0024] Reference numerals: 1. Unloading conveyor; 2. Telescopic discharge cylinder; 3. Guide block; 4. Blockage clearing mechanism; 41. Ring frame; 42. Guide plate; 43. Electric telescopic rod; 44. Pressure rod; 45. Extrusion block; 46. Hole expansion block; 47. Return spring plate; 5. Anti-blocking mechanism; 51. Extension rod; 52. Counterweight block; 53. Elastic impact block; 54. Cavity; 55. Vibrating ball. Detailed Implementation
[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0026] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0027] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Example: A dock conveyor unloading device with pressure detection function, such as... Figure 1 As shown, it is applied to the unloading conveyor 1. A telescopic discharge cylinder 2 is fixedly installed at the end of the unloading conveyor 1, and a guide block 3 is fixedly installed at the end of the unloading conveyor 1. The unloading conveyor 1 is set at an inclination. Coal and ore are conveyed at the top of the unloading conveyor 1, and the guide block 3 guides the coal and ore.
[0031] like Figures 2 to 4 As shown, a blockage-clearing mechanism 4 is provided at the bottom of the telescopic feed cylinder 2. The blockage-clearing mechanism 4 includes a circular frame 41 fixedly installed at the bottom of the telescopic feed cylinder 2, and a guide plate 42 with a built-in pressure sensor is rotatably connected to the circular frame 41. An electric telescopic rod 43 is fixedly installed on the outer wall of the guide block 3, and the electric telescopic rod 43 is electrically connected to the pressure sensor.
[0032] When coal flows normally inside the telescopic feed cylinder 2, the coal will impact the guide plate 42, and the pressure sensor inside the guide plate 42 will be impacted. When the telescopic feed cylinder 2 is blocked, the coal inside the telescopic feed cylinder 2 will no longer flow, and the pressure sensor will no longer be subjected to force. At this time, the pressure sensor will transmit a signal to the controller, and the controller will control the electric telescopic rod 43 to extend. The cooperation between the pressure sensor and the electric telescopic rod 43 is a conventional technology in the prior art.
[0033] An expanding block 46 is slidably connected to the inner wall of the telescopic feeding cylinder 2. A transmission component is provided between the bottom of the electric telescopic rod 43 and the expanding block 46. The transmission component includes a pressure rod 44, the top of which is fixedly connected to the electric telescopic rod 43. An extrusion block 45 is fixedly installed at the bottom of the pressure rod 44, and the outer arc surface of the extrusion block 45 contacts the expanding block 46. The top of the expanding block 46 has a groove with a trapezoidal cross-section. The extrusion block 45 has a trapezoidal cross-section. There is a gap between the inner arc surface of the extrusion block 45 and the expanding block 46. A return spring plate 47 is elastically connected between the outer arc surface of the expanding block 46 and the telescopic feeding cylinder 2.
[0034] The electric telescopic rod 43 extends and pushes the extrusion block 45 with the pressure rod 44. The extrusion block 45 uses its outer arc surface to extrude the hole-expanding block 46. At this time, the hole-expanding block 46 moves, thereby increasing the internal volume of the telescopic feed cylinder 2 and increasing the internal cross-sectional area of the telescopic feed cylinder 2.
[0035] The top of the expanding block 46 is slidably connected to the telescopic feeding cylinder 2. Multiple expanding blocks 46 are provided and are distributed in a ring at equal angles inside the telescopic feeding cylinder 2. Multiple expanding blocks 46 are used in combination to increase the expandable area.
[0036] In this invention, when the telescopic feeding cylinder 2 is blocked, the coal inside the telescopic feeding cylinder 2 no longer flows, the pressure sensor no longer bears force, the electric telescopic rod 43 extends and pushes the extrusion block 45 with the pressure rod 44, and the extrusion block 45 uses its outer arc surface to extrude the expanding block 46. At this time, the expanding block 46 moves, thereby increasing the volume inside the telescopic feeding cylinder 2 and increasing the cross-sectional area inside the telescopic feeding cylinder 2. Due to the increase in cross-sectional area, the extrusion pressure between the coal inside the telescopic feeding cylinder 2 decreases, causing it to loosen and flow normally, thus solving the blockage problem in the conveying process.
[0037] like Figure 2 , Figure 4 and Figure 5 As shown, an anti-blocking mechanism 5 is provided on the top of the guide plate 42. The anti-blocking mechanism 5 includes an extension rod 51 fixedly installed on the top of the guide plate 42. A counterweight 52 is fixedly installed on the outer wall of the extension rod 51. The weight of the counterweight 52 is greater than the weight of the guide plate 42. In the initial state, the guide plate 42 closes the bottom opening of the telescopic feed cylinder 2. When the guide plate 42 and the counterweight 52 are only subjected to gravity, the guide plate 42 closes the telescopic feed cylinder 2, so the coal inside the telescopic feed cylinder 2 will collide with the guide plate 42.
[0038] An elastic impact block 53 is fixedly installed on the side of the counterweight 52 facing the telescopic feed cylinder 2, and the telescopic feed cylinder 2 is located on the moving path of the elastic impact block 53. Since the amount of coal flowing inside the telescopic feed cylinder 2 fluctuates, the guide plate 42 will rotate continuously, and the guide plate 42 will impact the telescopic feed cylinder 2 using the counterweight 52 and the elastic impact block 53.
[0039] The inner wall of the telescopic feed cylinder 2 has a cavity 54, and a vibrating ball 55 is slidably connected inside the cavity 54. After the elastic impact block 53 impacts the counterweight block 52, the vibrating ball 55 vibrates, increasing the vibration frequency of the telescopic feed cylinder 2 and improving the vibration effect.
[0040] In this invention, the amount of coal flowing inside the telescopic feed cylinder 2 fluctuates, so the guide plate 42 will rotate continuously. The guide plate 42 uses the counterweight block 52 and the elastic impact block 53 to impact the telescopic feed cylinder 2, thereby generating vibration, shaking off the coal attached to the inner wall of the telescopic feed cylinder 2 to avoid blockage. After the elastic impact block 53 impacts the counterweight block 52, the vibrating ball 55 vibrates to increase the vibration frequency of the telescopic feed cylinder 2 and improve the vibration effect.
[0041] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A dock conveyor unloading device with pressure detection function, applied to an unloading conveyor (1), wherein a telescopic unloading cylinder (2) is fixedly installed at the end of the unloading conveyor (1), and a guide block (3) is fixedly installed at the end of the unloading conveyor (1), characterized in that, Also includes: The blockage clearing mechanism (4) includes a ring frame (41) fixedly installed at the bottom of the telescopic discharge cylinder (2), a guide plate (42) with a built-in pressure sensor is rotatably connected to the ring frame (41), an electric telescopic rod (43) is fixedly installed on the outer wall of the guide block (3), the electric telescopic rod (43) is electrically connected to the pressure sensor, an expansion block (46) is slidably connected to the inner wall of the telescopic discharge cylinder (2), and a transmission component is provided between the bottom of the electric telescopic rod (43) and the expansion block (46); The top of the guide plate (42) is provided with an anti-blocking mechanism (5).
2. The dock conveyor unloading device with pressure detection function according to claim 1, characterized in that: The transmission component includes a pressure rod (44), the top of which is fixedly connected to an electric telescopic rod (43), and a pressing block (45) is fixedly installed at the bottom of the pressure rod (44), with the outer arc surface of the pressing block (45) contacting the expanding block (46).
3. The dock conveyor unloading device with pressure detection function according to claim 2, characterized in that: The top of the expanding block (46) has a groove with a trapezoidal cross section. The cross section of the extrusion block (45) is trapezoidal. There is a gap between the inner arc surface of the extrusion block (45) and the expanding block (46). The outer arc surface of the expanding block (46) is elastically connected to the telescopic feeding cylinder (2) with a reset spring plate (47).
4. The dock conveyor unloading device with pressure detection function according to claim 3, characterized in that: The top of the enlarged hole block (46) is slidably connected to the telescopic feed cylinder (2). Multiple enlarged hole blocks (46) are provided and are distributed in a ring at equal angles inside the telescopic feed cylinder (2).
5. A dock conveyor unloading device with pressure detection function according to claim 4, characterized in that: The anti-blocking mechanism (5) includes an extension rod (51) fixedly installed on the top of the guide plate (42). A counterweight (52) is fixedly installed on the outer wall of the extension rod (51). The weight of the counterweight (52) is greater than the weight of the guide plate (42). In the initial state, the guide plate (42) closes the bottom opening of the telescopic feed cylinder (2).
6. A dock conveyor unloading device with pressure detection function according to claim 5, characterized in that: An elastic impact block (53) is fixedly installed on the side of the counterweight (52) facing the telescopic feed cylinder (2), and the telescopic feed cylinder (2) is located on the moving path of the elastic impact block (53).
7. A dock conveyor unloading device with pressure detection function according to claim 6, characterized in that: The inner wall of the telescopic feeding cylinder (2) is provided with a cavity (54), and a vibrating ball (55) is slidably connected inside the cavity (54).
8. A dock conveyor unloading device with pressure detection function according to claim 7, characterized in that: The unloading conveyor (1) is inclined and the top of the unloading conveyor (1) conveys coal and ore.