A port engineering riprap leveling device
The adjustable buffer locking mechanism and motor-driven opening and closing plate solve the problem of the inability to adjust the damping of the buffer components of the stone slab leveling machine, achieving precise buffering and stable discharge of different stones, reducing maintenance costs, and improving equipment availability and operating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC SECOND HARBOR ENGINEERING CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-10
AI Technical Summary
The existing rock-throwing leveling machine's buffer components cannot dynamically adjust the damping parameters, which makes it easy for hard rocks to break when impacted, resulting in high maintenance costs and easy displacement of the screen plate, leading to long maintenance time.
An adjustable buffer locking mechanism is adopted, and the damping parameters of the second buffer component are adjusted by rotating the positioning shaft. Combined with self-aligning roller bearings and motor-driven opening and closing plates, precise buffering and stable discharge of stone materials are achieved.
It effectively adapts to the impact conditions of stones of different densities, reduces maintenance time, improves equipment availability, lowers maintenance costs, and ensures the efficiency and reliability of stone paving and leveling operations.
Smart Images
Figure CN224478460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leveling equipment technology, specifically to a riprap leveling device for wharf engineering. Background Technology
[0002] In modern port engineering construction, the wharf, as a core facility, directly affects the port's operational efficiency, service life, and safety through its construction quality. Rockfill leveling, a crucial step in wharf foundation construction, plays a decisive role in the wharf's stability. With the booming development of global trade and the increasing trend towards larger ships, the water depth at the wharf's entrance is constantly increasing, placing more stringent demands on the wharf's load-bearing capacity and stability.
[0003] Publication No. CN220450865U3 discloses a stone-throwing and leveling machine, including a leveling machine frame, a leveling frame, multiple feed hoppers, multiple discharge pipes, an opening and closing assembly, and an opening and closing plate; multiple grid plates are horizontally arranged inside the multiple feed hoppers, each grid plate is located close to the corresponding discharge pipe, and the side of each grid plate is connected to the inner wall of the corresponding feed hopper; multiple buffer plates are arranged inside the multiple discharge pipes, each buffer plate is close to the corresponding opening and closing plate, and each buffer plate is connected to the corresponding opening and closing plate through a reset assembly. This invention allows the crushed stone entering each feed hopper to be buffered by the corresponding grid plates and buffer plates, slowing down the falling speed of the crushed stone and preventing it from falling directly onto the opening and closing plate, thus reducing the deformation rate of the opening and closing plate, increasing its service life, and ensuring that the opening and closing plate can be opened normally, thereby ensuring the normal operation of the stone-throwing operation of the leveling machine.
[0004] The aforementioned equipment, although the second buffer component guides the falling gravel to both sides for buffering by changing the direction of the gravel's fall, and works with the first buffer component to form a multi-angle impact dispersion, can theoretically significantly reduce the velocity of the gravel particles. However, the sharp edges of the triangular prism-shaped second buffer component directly bear the concentrated impact of the gravel, especially when processing hard rocks (such as granite), where the edges are prone to cracking or plastic deformation. The second buffer component is horizontally fixed on the inner wall opposite to the feed pipe and is located below the first buffer component. When replacing or repairing it, all the first buffer components above it and even part of the feed pipe structure must be completely disassembled to reach it, resulting in high downtime maintenance costs. Utility Model Content
[0005] To solve the above-mentioned technical problems, a riprap leveling device for wharf engineering is provided. This technical solution solves the problem of the inability to dynamically adjust the damping parameters mentioned in the background technology.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A riprap leveling device for wharf engineering includes: a mounting frame, a plurality of sets of feeding pipes are clamped to the top of the outer surface of the mounting frame, a feeding hopper is fixedly installed at the top of the outer surface of the feeding pipe, a coarse filter plate is fixedly installed inside the feeding hopper, a fine filter plate is installed at the bottom of the coarse filter plate inside the feeding pipe, a plurality of sets of clamping plates are installed on the left and right sides inside the feeding pipe, a second buffer is inserted into the outer surface of the clamping plate, a positioning hole is opened in the middle section of the outer surface of the second buffer, a rotating plate is installed on the outer surface of the feeding pipe at the front end of the second buffer, a positioning shaft is fixedly installed on the outer surface of the rotating plate near the second buffer, and a positioning hole is inserted into the shaft surface of the positioning shaft.
[0008] Preferably, a number of self-aligning roller bearings are installed at the rear central axis of the inner part of the feeding tube, a mounting shaft is inserted into the front end of the outer surface of the self-aligning roller bearing, a first buffer is inserted into the front end of the shaft surface of the mounting shaft, and a protective box is inserted into the rear side of the bottom end of the outer surface of the feeding tube.
[0009] Preferably, a rotating shaft is installed at the top front end of the outer surface of the protective box, and a motor is installed inside the protective box directly opposite the rotating shaft. A connecting rod is inserted into the front end of the shaft surface of the rotating shaft.
[0010] Preferably, a shaft is inserted into the bottom of the outer surface of the connecting rod, a slider is inserted into the shaft surface of the shaft, an opening and closing plate is inserted into the outer surface of the slider, and a groove is formed inside the opening and closing plate.
[0011] Preferably, a plurality of buffer springs are installed on the top of the outer surface of the opening and closing plate, and the top of the buffer springs abuts against the buffer plate.
[0012] Preferably, a limiting slide rod is installed on one end of the outer surface of the opening and closing plate, a limiting component is installed on the bottom end of one side of the inner side of the feeding tube, and a limiting groove is opened inside the limiting component, and the outer surface of the limiting slide rod is slidably installed in the limiting groove of the limiting component.
[0013] Preferably, a reset spring is installed in the internal limiting groove of the limiting member, and a limiting slide rod is installed at the bottom of the outer surface of the reset spring, and a slanted protective plate is installed at the top of the outer surface of the limiting member.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This solution proposes a riprap leveling device for wharf engineering. By rotating a plate to drive the positioning shaft to move within the positioning hole, the damping parameters of the second buffer are adjusted in real time to adapt to the impact conditions of stones of different densities, such as granite and limestone. The second buffer is rigidly anchored by a clamping plate and axially elastically locked, effectively suppressing the micro-displacement of the fine filter plate under high-frequency vibration. The second buffer can be quickly replaced by disassembling a single rotating plate, greatly reducing maintenance time and improving equipment availability. This solution solves the problems of "non-adjustable buffer, easy displacement of screen plate, and long maintenance time". Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the second buffer component in this utility model;
[0018] Figure 3 This is a schematic diagram of the buffer component in this utility model;
[0019] Figure 4 This is a schematic diagram of the reset component in this utility model;
[0020] Figure 5 This is a schematic diagram of the opening and closing plate in this utility model.
[0021] The numbers on the map are:
[0022] 1. Mounting frame; 2. Feed pipe; 3. Coarse filter plate; 4. Feed hopper; 5. Rotating plate; 6. Second buffer component; 61. Positioning hole; 7. Clamping plate; 8. Positioning shaft; 9. Fine filter plate; 10. Self-aligning roller bearing; 11. Mounting shaft; 12. First buffer component; 13. Protective box; 14. Rotating shaft; 15. Connecting rod; 16. Sliding block; 17. Buffer plate; 18. Insert shaft; 19. Buffer spring; 20. Opening and closing plate; 21. Slanted protective plate; 22. Return spring; 23. Limiting slide rod; 24. Limiting component. Detailed Implementation
[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0024] Reference Figure 1-5As shown, a riprap leveling device for a wharf project includes: a mounting frame 1, with several sets of feeding pipes 2 clamped to the top of the outer surface of the mounting frame 1, a feeding hopper 4 fixedly installed at the top of the outer surface of the feeding pipe 2, a coarse filter plate 3 fixedly installed inside the feeding hopper 4, a fine filter plate 9 installed at the bottom of the coarse filter plate 3 inside the feeding pipe 2, several sets of clamping plates 7 installed on the left and right sides inside the feeding pipe 2, a second buffer 6 inserted into the outer surface of the clamping plate 7, a positioning hole 61 opened in the middle section of the outer surface of the second buffer 6, a rotating plate 5 installed at the front end of the second buffer 6 on the outer surface of the feeding pipe 2, a positioning shaft 8 fixedly installed at one end of the outer surface of the rotating plate 5 near the second buffer 6, and a positioning hole 61 inserted into the shaft surface of the positioning shaft 8.
[0025] According to the above scheme, the core frame of the device is the mounting frame 1, which has multiple feed pipes 2 fixed to its top by snap-fit, forming the main flow channel for the stone. The top of each feed pipe 2 is connected to a feed hopper 4 to receive the stone. The feed hopper 4 is equipped with a coarse filter plate 3 to perform initial screening of the poured stone and intercept oversized stones. Inside the feed pipe 2, a fine filter plate 9 is installed immediately below the coarse filter plate 3 for secondary fine screening to ensure that the particle size of the stone entering the lower part of the feed pipe 2 meets the leveling requirements. In order to buffer the impact of falling stone and stabilize the filter plate, multiple sets of clamping plates 7 are installed on both sides inside the feed pipe 2. The second buffer 6 is an elastic damping element inserted into the clamping plate 7, with a positioning hole 61 in its middle. On the outside of the feed pipe 2, corresponding to the position of the second buffer 6, a rotatable rotating plate 5 is installed. A positioning shaft 8 is fixed to one end of the rotating plate 5 near the second buffer 6, and the positioning shaft 8 is inserted into the positioning hole 61 of the second buffer 6. This design constitutes a key, adjustable buffer locking mechanism. By rotating the rotating plate 5, the positioning shaft 8 can be moved or pressure applied within the positioning hole 61, thereby adjusting the tension or fixation state of the second buffer 6, enabling it to more effectively buffer stones while adapting to stones of different sizes or impact forces.
[0026] Reference Figure 2-3 As shown, several sets of self-aligning roller bearings 10 are installed at the central axis of the rear part of the inner part of the feed tube 2. The front end of the outer surface of the self-aligning roller bearing 10 is inserted with a mounting shaft 11. The front end of the shaft surface of the mounting shaft 11 is inserted with a first buffer 12. The rear side of the bottom end of the outer surface of the feed tube 2 is inserted with a protective box 13. The front end of the top of the outer surface of the protective box 13 is installed with a rotating shaft 14. A motor is installed inside the protective box 13 directly opposite the rotating shaft 14. The front end of the shaft surface of the rotating shaft 14 is inserted with a connecting rod 15. The bottom end of the outer surface of the connecting rod 15 is inserted with a plug shaft 18. The shaft surface of the plug shaft 18 is inserted with a slider 16. The outer surface of the slider 16 is inserted with an opening and closing plate 20. The opening and closing plate 20 has a sliding groove inside.
[0027] With the above scheme, several self-aligning roller bearings 10 are installed on the rear centerline inside each feed pipe 2. These bearings have an automatic self-aligning function and can compensate for certain installation errors or deformations. The front end of the self-aligning roller bearing 10 is inserted into the mounting shaft 11, which can rotate freely. The part of the mounting shaft 11 that extends into the feed pipe 2 is connected to a first buffer 12, which may be an elastic element, to further absorb and reduce the vibration or impact force generated by the flow of stone inside the feed pipe 2. A protective box 13 is fixed on the outer side of the rear bottom of the feed pipe 2, and a drive motor is installed inside. The rotating shaft 14 is connected from the inside. The motor is directly driven by the output end coaxially connected. The front end of the rotating shaft 14 extends downward or forward and is connected to the connecting rod 15 to transmit the rotational motion of the motor. The bottom end of the connecting rod 15 is connected to a slider 16 through the insert shaft 18. This slider 16 is inserted into the slide groove opened inside the opening and closing plate 20. The function of the entire transmission chain motor -> rotating shaft 14 -> connecting rod 15 -> insert shaft 18 -> slider 16 is to convert the rotational motion of the motor into the power source to drive the opening and closing plate 20 to reciprocate linear motion through the movement of the slider 16 in the slide groove of the opening and closing plate 20, thereby controlling the opening and closing state of the opening and closing plate 20.
[0028] Reference Figure 3-5 As shown, several sets of buffer springs 19 are installed on the top of the outer surface of the opening and closing plate 20. The top of the buffer springs 19 abuts against the buffer plate 17. A limiting slide rod 23 is installed on one end of the outer surface of the opening and closing plate 20. A limiting component 24 is installed on the bottom of one side of the inner side of the feeding tube 2. A limiting groove is opened inside the limiting component 24. The outer surface of the limiting slide rod 23 is slidably installed in the limiting groove of the limiting component 24. A return spring 22 is installed in the limiting groove inside the limiting component 24. A limiting slide rod 23 is installed on the bottom of the outer surface of the return spring 22. A slanted protective plate 21 is installed on the top of the outer surface of the limiting component 24.
[0029] Through the above scheme, the opening and closing plate 20 is the key moving component controlling the final discharge of the stone. Multiple sets of buffer springs 19 are installed on its top surface. When the stone falls onto the opening and closing plate 20 to be discharged, the buffer plate 17 and the buffer springs 19 below it work together to buffer the impact force of the falling stone, protect the opening and closing plate 20 mechanism and reduce noise. In order to achieve stable and guided linear movement of the opening and closing plate 20, one end of it is connected to a limiting slide rod 23. At the bottom end of one side inside the feeding pipe 2, a limiting component 24 is fixedly installed, which has precise limiting functions machined inside. The limiting slide rod 23 is slidably installed in the limiting groove to ensure that the opening and closing plate 20 can only move along a predetermined trajectory, usually horizontally. In order to automatically reset the opening and closing plate 20 to the closed position and prevent stone leakage when the driving mechanism connecting rod 15 stops applying thrust, a return spring 22 is also installed in the limiting groove of the limiting member 24. The bottom end of the return spring 22 acts on the limiting slide rod 23, usually as a compression spring. The preload force makes the limiting slide rod 23 tend to move in the closing direction. Finally, a sloping protective plate 21 is installed on the top of the limiting member 24. The design of this sloping surface is crucial. It can effectively guide stones that may roll or splash into the area, prevent stones from getting stuck in the movement gap between the limiting slide rod 23 and the limiting member 24, ensure smooth and reliable opening and closing action, and improve the durability of the equipment.
[0030] Working principle and implementation: The stone is first fed into the feed hopper 4 and preliminarily screened by the coarse filter plate 3 inside, intercepting oversized stones. The stones that meet the preliminary requirements fall into the discharge pipe 2 and are then screened a second time by the fine filter plate 9 to ensure that the particle size meets the standard. During the screening process, the impact force of the falling stones is effectively absorbed and stabilized by the first buffer 12 and the adjustable buffer locking mechanism composed of the clamping plate 7, the second buffer 6, the rotating plate 5 and the positioning shaft 8, preventing the filter plate from shifting and adapting to different working conditions. The qualified stones finally reach the bottom of the discharge pipe 2 and fall on the opening and closing plate 20 supported by the buffer spring 19 and the buffer plate 17 for further cushioning. The impact is controlled by a motor-driven rotating shaft 14 inside the protective box 13. Through the movement of the connecting rod 15, the insert shaft 18, and the slider 16 in the groove of the opening and closing plate 20, the rotation is converted into the horizontal reciprocating motion of the opening and closing plate 20, realizing the precise and controllable discharge of stones. The movement of the opening and closing plate 20 is precisely guided by the sliding guide rod 23 in the groove of the limiting member 24. When the motor stops pushing, the reset spring 22 automatically resets the opening and closing plate 20 to the closed state to prevent material leakage. The inclined protective plate 21 effectively guides the scattered stones, protects the limiting mechanism from jamming, ensures the reliability of the operation and the durability of the equipment, and ultimately realizes the efficient and uniform stone throwing and leveling operation of the wharf foundation.
[0031] 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 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A riprap leveling device for wharf engineering, comprising: The mounting frame (1) is characterized in that: a number of sets of feeding pipes (2) are snapped onto the top of the outer surface of the mounting frame (1), a feeding hopper (4) is fixedly installed on the top of the outer surface of the feeding pipe (2), a coarse filter plate (3) is fixedly installed inside the feeding hopper (4), a fine filter plate (9) is installed at the bottom of the coarse filter plate (3) inside the feeding pipe (2), a number of sets of clamping plates (7) are installed on the left and right sides inside the feeding pipe (2), a second buffer (6) is inserted into the outer surface of the clamping plate (7), a positioning hole (61) is opened in the middle section of the outer surface of the second buffer (6), a rotating plate (5) is installed on the outer surface of the feeding pipe (2) at the front end of the second buffer (6), a positioning shaft (8) is fixedly installed on the outer surface of the rotating plate (5) near the second buffer (6), and a positioning hole (61) is inserted into the shaft surface of the positioning shaft (8).
2. The riprap leveling device for wharf engineering according to claim 1, characterized in that: Several sets of self-aligning roller bearings (10) are installed at the rear center axis of the inner part of the feed tube (2). An installation shaft (11) is inserted into the front end of the outer surface of the self-aligning roller bearing (10). A first buffer (12) is inserted into the front end of the shaft surface of the installation shaft (11). A protective box (13) is inserted into the rear side of the bottom end of the outer surface of the feed tube (2).
3. The riprap leveling device for wharf engineering according to claim 2, characterized in that: A rotating shaft (14) is installed on the top front end of the outer surface of the protective box (13), and a motor is installed inside the protective box (13) directly opposite the rotating shaft (14). A connecting rod (15) is inserted into the front end of the shaft surface of the rotating shaft (14).
4. A riprap leveling device for wharf engineering according to claim 3, characterized in that: The bottom of the outer surface of the connecting rod (15) is inserted with a shaft (18), and a slider (16) is inserted into the shaft surface of the shaft (18). A sliding plate (20) is inserted into the outer surface of the slider (16), and a groove is provided inside the sliding plate (20).
5. A riprap leveling device for wharf engineering according to claim 4, characterized in that: Several sets of buffer springs (19) are installed on the top of the outer surface of the opening and closing plate (20), and the top of the buffer springs (19) abuts against the buffer plate (17).
6. A riprap leveling device for wharf engineering according to claim 4, characterized in that: A limiting slide rod (23) is installed on one end of the outer surface of the opening and closing plate (20), and a limiting component (24) is installed on the bottom of one side of the inner side of the feeding tube (2). A limiting groove is opened inside the limiting component (24), and the outer surface of the limiting slide rod (23) is slidably installed in the limiting groove of the limiting component (24).
7. A riprap leveling device for wharf engineering according to claim 6, characterized in that: The inner limiting groove of the limiting member (24) is equipped with a reset spring (22), and the bottom of the outer surface of the reset spring (22) is equipped with a limiting slide rod (23), and the top of the outer surface of the limiting member (24) is equipped with a slanted protective plate (21).