High-stability hydraulic device for pile driver
By designing a hydraulic device that combines a support frame, a limiting column, and spring steel in the pile driver, the stability problem caused by different diameters of the hidden piles was solved, achieving high stability and safety for the pile driver.
Patent Information
- Application Number
- CN202423295103.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing pile drivers, the hydraulic system has poor stability when the diameter of the pile is different, which leads to deviation in the pile driving direction and affects the construction quality.
A hydraulic device comprising a support, a limiting post, a sliding rod, a hydraulic tank, and spring steel was designed. By matching the arc-shaped spring steel with the buried pile, and cooperating with the sliding rod and the limiting post, the stability of the device on the buried pile is ensured, and the impact force is buffered by the spring to avoid damage to the equipment.
It improves the stability of the pile driver, ensures accurate pile driving direction, reduces equipment damage, and enhances construction safety and efficiency.
Smart Images
Figure CN223937150U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile driver technology, specifically a high-stability hydraulic device for pile drivers. Background Technology
[0002] A pile driver consists of a pile hammer, a pile frame, and auxiliary equipment. The pile hammer is attached to two parallel vertical guide rods (commonly known as a gantry) at the front of the pile frame and is lifted by a hoisting hook. The pile frame is a steel tower structure with a winch at the rear for lifting the pile and pile hammer. A guide frame composed of two guide rods at the front of the pile frame controls the driving direction, ensuring the pile penetrates the ground accurately according to the designed orientation. The basic technical parameters of a pile driver are the weight of the impact component, impact kinetic energy, and impact frequency. Pile hammers can be classified according to their power source, such as drop hammers, steam hammers, diesel hammers, and hydraulic hammers.
[0003] In typical pile drivers, hydraulic equipment is used to control the cyclical up-and-down movement of the impact hammer. The impact equipment is usually installed on top of the submerged pile, and when the impact hammer moves downward, it applies an impact force to the submerged pile, which drives the pile into the foundation. However, submerged piles vary in size. After controlling the pile driver to be installed on top of the submerged pile, the contact area between the submerged pile and the pile driver will decrease because the diameter of the submerged pile is too small. This will cause the force direction to deviate during pile driving, resulting in unstable pile driving. Therefore, we propose a high-stability hydraulic device for pile drivers. Utility Model Content
[0004] To address the shortcomings of existing high-stability hydraulic devices for pile drivers, this utility model provides a high-stability hydraulic device for pile drivers. This device features the advantage of being able to be fitted onto the upper part of a submerged pile by an installation sleeve. Depending on the type of submerged pile, the device can drive the arc-shaped spring steel to contract, thereby enabling the device to be fitted onto the upper part of the submerged pile. This solves the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a high-stability hydraulic device for a pile driver, comprising a support, a first limiting post installed at the front end of the support, a sliding rod movably sleeved on the outside of the first limiting post, a second limiting post fixedly connected to the front end of the sliding rod, an installation block movably sleeved on the outside of the second limiting post, a hydraulic tank fixedly connected to the front end of the installation block, a punching hammer installed inside the hydraulic tank, a hydraulic control system installed on both sides of the hydraulic tank, and an installation seat movably sleeved on the lower end of the hydraulic tank.
[0006] Preferably, the mounting base includes a threaded sleeve, which is threadedly installed at the lower end of the hydraulic tank. At the same time, a disc is fixedly connected to the lower end of the threaded sleeve, and an arc-shaped spring steel is fixedly connected inside the disc. The disc is movably sleeved on the wooden pile to be processed.
[0007] Preferably, the bracket has a sliding groove inside, and a positioning plate is installed at the rear end of the sliding rod by fastening bolts. The positioning plate passes through the sliding groove and is installed at the rear end of the bracket.
[0008] Preferably, the slide bar is fitted to the front end of the bracket, while the hydraulic tank remains parallel to the bracket.
[0009] Preferably, the top of the hydraulic tank is equipped with a cover, and a traction rope is fixedly connected to the upper part of the cover, with a traction device installed at the other end of the traction rope.
[0010] Preferably, the lower end of the stamping hammer is fixedly connected to an installation sleeve, a buffer sleeve is sleeved on the outside of the installation sleeve, and a second spring is installed between the installation sleeve and the buffer sleeve.
[0011] Preferably, a first spring is sleeved on the outside of the second limiting post, and the first spring is installed between the slide rod and the mounting block.
[0012] Compared with existing high-stability hydraulic devices for pile drivers, this utility model has the following advantages:
[0013] 1. This pile driver uses a highly stable hydraulic device. An installation seat is installed at the lower end of the hydraulic tank. When the installation seat is fitted onto the wooden pile, the arc-shaped spring steel is controlled to contract inward according to the different diameters of the wooden pile to ensure stability when fitted onto the upper part of the wooden pile. At the same time, a positioning plate is installed at the rear end of the slide rod, which extends to the rear end of the support, thereby improving the stability of the equipment during installation and use.
[0014] 2. The pile driver uses a highly stable hydraulic device. The hydraulic tank is limited by a mounting block and a second limiting post to ensure its stability. At the same time, a first spring is installed on the outside of the second limiting post. When the hydraulic tank is driving the pile, it will move downward instantly. The first spring will buffer the instantaneous impact force to avoid excessive impact force, which could cause damage between components. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0017] Figure 3 This is a schematic cross-sectional view of the main body of this utility model;
[0018] Figure 4 This is a schematic diagram of the mounting sleeve structure of this utility model;
[0019] Figure 5 This is an enlarged structural diagram of point A in this utility model.
[0020] In the diagram: 1. Bracket; 2. First limiting post; 3. Sliding rod; 4. Sliding groove; 5. Positioning plate; 6. Fastening bolt; 7. Mounting block; 8. Second limiting post; 9. Hydraulic tank; 10. First spring; 11. Stamping hammer; 12. Hydraulic control system; 13. Mounting sleeve; 14. Buffer sleeve; 15. Second spring; 16. Top cover; 17. Traction rope; 18. Mounting seat; 181. Threaded sleeve; 182. Disc; 183. Curved spring steel. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A high-stability hydraulic device for a pile driver includes a support 1. A first limiting post 2 is installed at the front end of the support 1, which limits the movement trajectory of a sliding rod 3. The sliding rod 3 is movably sleeved on the outside of the first limiting post 2, and the sliding rod 3 is adjusted at the front end of the support 1. A second limiting post 8 is fixedly connected to the front end of the sliding rod 3, which limits the position of a mounting block 7. The mounting block 7 is movably sleeved on the outside of the second limiting post 8. A hydraulic tank 9 is fixedly connected to the front end of the mounting block 7. A punching hammer 11 is installed inside the hydraulic tank 9. A hydraulic control system 12 is installed on both sides of the hydraulic tank 9, and the hydraulic control system 12 drives the punching hammer 11 to adjust its position inside the hydraulic tank 9. A mounting seat 18 is movably sleeved at the lower end of the hydraulic tank 9.
[0023] Please see Figure 4The mounting base 18 includes a threaded sleeve 181, which is threaded onto the lower end of the hydraulic tank 9. A disc 182 is fixedly connected to the lower end of the threaded sleeve 181. An arc-shaped spring steel 183 is fixedly connected inside the disc 182, and the disc 182 is movably fitted onto the wooden pile to be processed. By controlling the mounting sleeve 18 to fit onto the upper part of the wooden pile, and depending on the diameter of the wooden pile, an arc-shaped spring steel 183 is installed on the inner side of the disc 182. After the arc-shaped spring steel 183 contacts the wooden pile, it compresses inward, ensuring that the arc-shaped spring steel 183 can compress and limit wooden piles of different shapes. This ensures the stability of the position between the wooden pile and the hydraulic tank 9, preventing loosening between the hydraulic tank 9 and the wooden pile during pressing, which could lead to safety hazards and thus improve the stability of the hydraulic equipment.
[0024] Please see Figure 5 The bracket 1 has a groove 4 inside. The rear end of the slide rod 3 is equipped with a positioning plate 5 by fastening bolts 6. The positioning plate 5 passes through the groove 4 and is installed at the rear end of the bracket 1. The positioning plate 5 extends to the rear end of the bracket 1, which means that the positioning plate 5 limits the position of the slide rod 3 at the front end of the bracket 1, reduces the positional deviation of the hydraulic box 9, and improves its stability.
[0025] Please see Figure 3 The slide bar 3 is fitted to the front end of the bracket 1, while the hydraulic tank 9 remains parallel to the bracket 1. By fitting the slide bar 3 to the front end of the bracket 1 and keeping the hydraulic tank 9 parallel to the bracket 1, the stability of the hydraulic tank 9 during use is ensured.
[0026] Please see Figure 1 The top of the hydraulic tank 9 is equipped with a cover 16, and a traction rope 17 is fixedly connected to the upper part of the cover 16. A traction device is installed at the other end of the traction rope 17. The traction device can drive the hydraulic tank 9 to adjust its height at the front end of the bracket 1 through the traction device installed on the outside of the traction rope 17.
[0027] Please see Figure 3 The lower end of the punching hammer 11 is fixedly connected to the mounting sleeve 13. The outer side of the mounting sleeve 13 is fitted with a buffer sleeve 14. A second spring 15 is installed between the mounting sleeve 13 and the buffer sleeve 14. By starting the hydraulic control system 12, the hydraulic control system 12 drives the punching hammer 11 to move up and down inside the hydraulic tank 9. When the punching hammer 11 is controlled to move downward, the buffer sleeve 14 is controlled to punch the bottom end of the hydraulic tank 9, thus completing the piling operation. At the same time, the second spring 15 is installed inside the buffer sleeve 14, and the second spring 15 buffers the punching hammer 11 during the punching process.
[0028] Please see Figure 5The second limiting post 8 is externally fitted with a first spring 10. The first spring 10 is installed between the slide rod 3 and the mounting block 7. When the hydraulic box 9 presses the equipment, the hydraulic box 9 will move downward instantaneously. At the same time, the slide rod 3 is fitted inside the first limiting post 2. The first spring 10 buffers the impact force to avoid excessive instantaneous pressure, which could damage the equipment.
[0029] Working principle: During use, a positioning plate 5 is installed at the rear end of the slide bar 3. The positioning plate 5 helps to limit the movement trajectory of the slide bar 3 and ensure its stability during movement. The hydraulic box 9 is driven to move upward by the traction rope 17. The control installation sleeve 18 is fitted onto the upper part of the wooden pile. The hydraulic control system 12 is started. The hydraulic control system 12 drives the punching hammer 11 to move upward inside the hydraulic box 9. At the same time, when the punching hammer 11 moves downward, the punching hammer 11 performs punching treatment on the inside of the hydraulic box 9. That is, the hydraulic box 9 drives the installation sleeve 18 to perform pile driving treatment on the wooden pile. The first spring 10 buffers the hydraulic box 9 when it descends instantaneously.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-stability hydraulic device for a pile driver, comprising a support (1), wherein a first limiting post (2) is installed at the front end of the support (1), and a sliding rod (3) is movably sleeved on the outside of the first limiting post (2), characterized in that: The front end of the slide bar (3) is fixedly connected to a second limiting post (8), and the outside of the second limiting post (8) is movably sleeved with an installation block (7). The front end of the installation block (7) is fixedly connected to a hydraulic box (9), and a punching hammer (11) is installed inside the hydraulic box (9). A hydraulic control system (12) is installed on both sides of the hydraulic box (9), and an installation seat (18) is movably sleeved at the lower end of the hydraulic box (9).
2. The high-stability hydraulic device for a pile driver according to claim 1, characterized in that: The mounting base (18) includes a threaded sleeve (181), which is threadedly installed at the lower end of the hydraulic tank (9). At the same time, a disc (182) is fixedly connected to the lower end of the threaded sleeve (181). An arc-shaped spring steel (183) is fixedly connected inside the disc (182), and the disc (182) is movably sleeved on the wooden pile to be processed.
3. The high-stability hydraulic device for a pile driver according to claim 1, characterized in that: The bracket (1) has a sliding groove (4) inside. The rear end of the sliding rod (3) is fitted with a positioning plate (5) by fastening bolts (6). The positioning plate (5) passes through the sliding groove (4) and is installed at the rear end of the bracket (1).
4. The high-stability hydraulic device for a pile driver according to claim 1, characterized in that: The slide bar (3) is fitted to the front end of the bracket (1), while the hydraulic tank (9) remains parallel to the bracket (1).
5. A high-stability hydraulic device for a pile driver according to claim 1, characterized in that: The top of the hydraulic tank (9) is fitted with a cover (16), and a traction rope (17) is fixedly connected to the upper part of the cover (16). A traction device is installed at the other end of the traction rope (17).
6. A high-stability hydraulic device for a pile driver according to claim 1, characterized in that: The lower end of the stamping hammer (11) is fixedly connected to an installation sleeve (13), and a buffer sleeve (14) is sleeved on the outside of the installation sleeve (13). A second spring (15) is installed between the installation sleeve (13) and the buffer sleeve (14).
7. A high-stability hydraulic device for a pile driver according to claim 1, characterized in that: The second limiting post (8) is externally fitted with a first spring (10), which is installed between the slide rod (3) and the mounting block (7).