Novel self-opening and closing pile tip door of overwater gravel pile machine
By designing a new self-opening and closing pile tip door, using the structure of the rotating shaft seat, door panel and pin shaft, the problems of complex manual operation and high failure rate of traditional pile tip doors are solved, and automated operation and efficient construction are achieved.
Patent Information
- Application Number
- CN202421798618.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Traditional petal pile tip doors have problems such as large amount of manual labor, complex design, high production difficulty and high failure rate in water stone crushers, which affect construction efficiency and quality.
A new self-opening and closing pile tip door is designed, adopting a structure of a rotating shaft seat, a rotating door panel, a rotating pin shaft and a shaft end baffle to achieve automatic closing and opening, simplifying the design and production of pile tips.
It realizes automated operations without manual fixation and operation, reduces failure rate and maintenance costs, and improves construction efficiency and quality.
Smart Images
Figure CN222796370U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of gravel pile foundation engineering, and more specifically to a novel self-opening and closing pile tip door of an above-water gravel pile driver. Background Art
[0002] Gravel pile is a composite foundation reinforcement pile, which is made of gravel without bonding strength as the main material. During the construction process, holes are formed in the soft foundation by vibration, impact or water flushing, and then the gravel is squeezed into the soil holes to form a dense pile body composed of large-diameter gravel. This pile body is composed of gravel piles and soil between piles, which plays a role in reinforcing the foundation; Gravel piles can be divided into two categories according to their pile making process: vibratory crushed stone piles and dry crushed stone piles. Vibratory crushed stone piles are made by vibration and water flushing, while dry crushed stone piles are made by various water-free flushing processes, such as dry vibration, vibration extrusion, and hammering; Gravel pile method is a method of reinforcing the foundation when building structures such as embankments on soft foundations. This method has been widely used in areas lacking well-graded sand. Gravel piles are simple and easy to use, have excellent stress resistance and economic benefits, and are widely used in non-buildings, earthwork projects, road and bridge projects and other fields.
[0003] At present, a dedicated pile tip door is required for the operation of a water rock breaker. However, traditional petal-type pile tip door rock breakers are mostly constructed on land, which requires a large amount of manual labor, and has problems such as complex pile tip design, high manufacturing difficulty, and a high failure rate of the pile tip door, which affects the overall operation efficiency and quality.
[0004] In order to solve the above problems, the present application provides a novel self-opening and closing pile tip door of an above-water stone pile crusher. Utility Model Content
[0005] The present application provides a novel self-opening and closing pile tip door of an above-water stone pile crusher, which adopts the following technical solution:
[0006] A new type of self-opening and closing pile tip door of an above-water stone crushing pile machine comprises a pile tip cylinder, a rotating shaft seat is arranged on the left and right sides of the lower end of the pile tip cylinder, a rotating door panel is arranged on the front and rear sides between the two rotating shaft seats, and a rotating pin is movably installed at the connection between the bottom ends of the two rotating door panels, the rotating pin is arranged at the connection between the inner cavities of the two rotating shaft seats, a bottom pile tip is arranged between the lower ends of the two rotating shaft seats, and the front and rear side surfaces of the middle part of the bottom pile tip are connected with door panel limiters, and the door panel limiters are located below the horizontal plane position where the bottom of the rotating shaft seat is located.
[0007] Furthermore, shaft end baffles are provided at both end positions of the rotating pin shaft, and the two shaft end baffles are respectively provided on the side faces of the two rotating shaft seats which are away from each other.
[0008] Through the above technical solution, the two shaft end baffles realize the limiting effect on the two ends of the rotating pin shaft.
[0009] Furthermore, the two rotating door panels are symmetrically distributed on the front and rear sides of the position between the two rotating shaft seats, and the two rotating door panels themselves are both designed with arc-shaped plate structures.
[0010] Furthermore, an extension ear block is fixedly connected to one end surface of the upper side of the two rotating door panels, and a through hole is penetrated through each of the extension ear blocks.
[0011] Furthermore, the two door panel limits are symmetrically distributed on the front and rear sides of the middle part of the bottom pile tip, and the cut surface on one side of the upper end of the door panel limit is abutted and adapted with the end surface of the rotating door panel at the maximum downward rotational activity position.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] In this application, water construction is carried out by relying on a gravel pile ship and an automated gravel adding system. Compared with the traditional multi-petal pile tip door, it is possible to achieve the effect of not requiring manual fixing and operation of the petal pile tip door, while having the advantages of simple pile tip design, low manufacturing difficulty, and low failure rate of the pile tip door, and improving the overall operation efficiency and quality. In addition, the pile tip door automatically closes during vibration sinking, which can prevent soil outside the submerged tube from entering the tube. When the submerged tube is driven downward into the soil, the pile tip door plate with a 45-degree inclination is subject to little soil resistance. When the submerged tube is pulled up, the pile tip door automatically opens, allowing the gravel in the tube to fall under its own weight. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic elevation view of the present application;
[0015] Figure 2 This is a closed side view of the pile tip of this application.
[0016] Figure 3 Open side view for the pile tip of this application.
[0017] Description of the numbers in the figure:
[0018] 1. Pile tip cylinder; 2. Rotating shaft seat; 3. Rotating door panel; 4. Rotating pin shaft; 5. Bottom pile tip; 6. Door panel limiter; 7. Shaft end baffle. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.
[0020] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0021] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0022] Example:
[0023] The present application discloses a novel self-opening and closing pile tip door of a water-based stone pile crusher. Figure 1 , Figure 2 and Figure 3 , including a pile tip cylinder 1, a rotating shaft seat 2 is provided on the left and right sides of the lower end of the pile tip cylinder 1, a rotating door panel 3 is provided on the front and rear sides between the two rotating shaft seats 2, and a rotating pin 4 is movably installed at the connection between the bottom ends of the two rotating door panels 3, and the rotating pin 4 is arranged at the connection between the inner cavities of the two rotating shaft seats 2, a bottom pile tip 5 is provided between the lower ends of the two rotating shaft seats 2, and the front and rear side surfaces of the middle of the bottom pile tip 5 are connected with a door panel limit 6, and the door panel limit 6 is located below the horizontal plane position of the bottom of the rotating shaft seat 2, and the two end positions of the rotating pin 4 are provided with shaft end baffles 7, and the two shaft end baffles 7 are respectively arranged on the side opposite to each other of the two rotating shaft seats 2.
[0024] See also Figure 1 , Figure 2 and Figure 3The two rotating door panels 3 are symmetrically distributed on the front and rear sides of the position between the two rotating shaft seats 2, and the two rotating door panels 3 themselves are designed with an arc-shaped plate structure. The upper end faces of the two rotating door panels 3 are fixedly connected with extended ear blocks, and each extended ear block is penetrated with a through hole. The two door panel limiters 6 are symmetrically distributed on the front and rear side faces of the middle of the bottom pile tip 5, and the cross-section of one side of the upper end of the door panel limiter 6 is abutted and adapted to the end face of the rotating door panel 3 at the downward maximum rotation activity position.
[0025] The implementation principle of this embodiment is as follows: when in use, the prepared self-opening and closing pile tip door is welded to the bottom of the immersed tube. The diameter of the gravel pile is 1m. The immersed tube is transported to the target water area by a gravel pile ship. The tip of the immersed tube pile is aligned with the center of the gravel pile through the gravel pile ship sand pile frame system. After the gravel pile hole position is checked and confirmed, the immersed tube is operated to sink under its own weight to a position 1m above the mud surface. Since the construction on the water is affected by waves and currents, it is necessary to check and adjust the verticality of the equipment. After confirming the verticality, the immersed tube is slowly driven into the mud surface. The pile tip is gradually closed under the top pushing action of the soil pressure, and pressurized drainage is performed. The vibration equipment on the gravel pile is started to sink the tube to the designed elevation, and then the pile is lowered to the designed elevation through the gravel pile ship. The automatic gravel adding system adds gravel into the pipe casing. After the two buckets of gravel are added, the vibrating hammer is turned on to vibrate and sink. Gravel is continuously added into the pipe during the vibration and sinking. After all the gravel is added, the feed door is closed, and the pipe is vibrated and sinked to the elevation position with pressure. The winch is turned on to slowly lift the steel pipe. When the pipe is lifted, the door plate of the pile tip opens, and the gravel falls. Then the steel pipe is reversed and inserted into the soil 20cm. The door plate of the pile tip closes. The steel pipe impacts to reduce the gap between the gravel and make the gravel pile more compact. Then the above steps are repeated, gravel is added to vibrate and sink, the pipe is lifted to make the gravel fall, and then the pipe is reversed to squeeze the gravel to make the gravel pile compact until the pile length reaches the designed length. Finally, the pipe is pulled out. When the pile tip is pulled out, the gravel pile is completed.
[0026] When the integral self-opening and closing pile tip door is vibrated and sunk into the soil, the pile tip door plate (i.e., the rotating door plate 3) rotates upward under the action of the passive earth pressure of the soil, and the pile tip door plate fits with the wall of the immersed tube to prevent the soil outside the immersed tube from pouring into the tube. In addition, the greater the soil pressure during the sinking process, the tighter the fit between the pile tip door plate and the wall of the immersed tube. When the immersed tube is pulled up after the vibration sinking is completed, the pile tip door plate opens downward under the action of the gravity of the gravel in the tube, and the gravel and soil in the immersed tube fall freely. When the fallen gravel accumulates to a certain depth, the immersed tube is reversed. During the reverse insertion, the force on the pile tip door plate is the same as that during the sinking process, and the pile tip door plate is closed, thereby squeezing the gravel to reduce its gap and improve its strength.
[0027] The self-opening and closing pile tip door design of the present application is simple and practical. The pile tip door can automatically close when vibrating and sinking into the soil to drive the immersed tube into the specified elevation, and can also automatically open when pulling up to sink the gravel to the target position. When reversing, the closed pile tip door can also be used to hammer the gravel downward to form a gravel pile with stable strength. Compared with the multi-petal pile tip door, the self-opening and closing pile tip door has a lower probability of structural failure and lower maintenance cost due to the reduction of petals.
[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A novel self-opening and closing pile tip door of an underwater stone pile crusher, comprising a pile tip cylinder (1), characterized in that: The left and right sides of the lower end of the pile tip cylinder (1) are both provided with a rotating shaft seat (2), the front and rear sides of the position between the two rotating shaft seats (2) are both provided with a rotating door panel (3), and the connection between the bottom ends of the two rotating door panels (3) is movably mounted with a rotating pin (4), the rotating pin (4) is arranged at the connection between the inner cavities of the two rotating shaft seats (2), a bottom pile tip (5) is arranged between the lower ends of the two rotating shaft seats (2), and the front and rear side surfaces of the middle part of the bottom pile tip (5) are both connected with a door panel stopper (6), and the door panel stopper (6) is located below the horizontal plane position where the bottom of the rotating shaft seat (2) is located.
2. The novel self-opening and closing pile tip door of a water-based stone pile crusher according to claim 1 is characterized by: Axle end baffles (7) are provided at both end positions of the rotating pin shaft (4), and the two shaft end baffles (7) are respectively provided on opposite sides of the two rotating shaft seats (2).
3. The novel self-opening and closing pile tip door of a water-based stone pile crusher according to claim 1 is characterized by: The two rotating door panels (3) are symmetrically distributed on the front and rear sides of the position between the two rotating shaft seats (2), and the two rotating door panels (3) themselves are both designed as arc-shaped plate structures.
4. The novel self-opening and closing pile tip door of a water-based stone pile crusher according to claim 3 is characterized by: An extension ear block is fixedly connected to one end surface of the upper side of the two rotating door panels (3), and a through hole is provided through each extension ear block.
5. The novel self-opening and closing pile tip door of the water-based stone pile crusher according to claim 1 is characterized by: The two door panel limiters (6) are symmetrically distributed on the front and rear sides of the middle of the bottom pile tip (5), and the cut surface on one side of the upper end of the door panel limiter (6) is abutted and matched with the end surface of the rotating door panel (3) at the maximum downward rotation activity position.