Wear-resistant cylinder hammer of diesel pile hammer
By installing buffer springs and shock absorbers in the diesel pile hammer, the problem of cylinder hammer wear was solved, the service life of mechanical parts was extended, maintenance costs were reduced, and applicability was improved.
Patent Information
- Application Number
- CN202423174082.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Traditional diesel pile hammers lack shock absorption structures when the cylinder hammer moves up and down, resulting in severe wear of mechanical parts, shortening service life and increasing maintenance costs.
A buffer spring is installed at the connection between the limit bracket and the slide rod, and a shock-absorbing column of the ring plate is used to buffer the impact when the cylinder hammer and piston rod approach the end, reducing collision wear. At the same time, multiple sets of mounting holes are set at the bottom of the impact seat to accommodate hammer parts of different sizes.
It effectively reduces wear on mechanical parts, extends service life, lowers maintenance and replacement costs, and improves the applicability of the device.
Smart Images
Figure CN223548562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diesel pile driving hammer technology, and in particular to a wear-resistant cylinder hammer for diesel pile driving. Background Technology
[0002] Diesel-powered piling hammers are used in large-scale infrastructure projects such as bridges, roads, ports, and airports to drive piles to enhance the bearing capacity of the foundation. They were developed to address the problem of insufficient power supply. Utilizing a mechanical structure based on the working principle of a diesel engine as a power source, they can perform piling operations in locations without electricity.
[0003] When the cylinder hammer of a traditional diesel pile driver moves up and down, the end of the cylinder hammer's vertical movement range usually lacks a shock-absorbing structure. This may cause the cylinder hammer to move beyond its limit range, damaging the limiting components. This increases friction and wear between mechanical parts, shortens the service life of mechanical parts, and increases the cost of maintenance and replacement parts.
[0004] Therefore, those skilled in the art have provided a wear-resistant cylinder hammer for diesel pile driving to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wear-resistant cylinder hammer for diesel pile driving. By fixing buffer springs at the connection points between the bottom of the limiting frame and the two sliding rods, the contact and collision between the cylinder hammer and the limiting plate can be avoided when the cylinder hammer moves too high, thus protecting the limiting plate and reducing its wear. When the cylinder hammer body and piston column are close to the end of their engagement, the bottom end of the piston column contacts the annular plate. Multiple shock-absorbing columns at the bottom of the annular plate dampen the cylinder hammer body, reducing collision and wear between the bottom end of the cylinder hammer and the top end of the piston column. This improves the service life of the mechanical components and reduces the cost of maintenance and replacement parts.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A wear-resistant cylinder hammer for diesel pile driving includes a cylinder hammer body. An upper hammer seat is installed at the top of the cylinder hammer body, and a lower hammer seat is designed below the cylinder hammer body. Slide rods are fixedly installed on both sides of the top of the lower hammer seat. The upper hammer seat is slidably connected to the two slide rods. A piston rod is installed at the top of the lower hammer seat. A shock absorber seat is installed at one outer end of the piston rod. Multiple shock absorber columns are installed at the top of the shock absorber seat. A ring plate is installed at the top of the multiple shock absorber columns. A limit frame is installed at one end of the two slide rods. A buffer spring is fixedly installed at the connection between the bottom end of the limit frame and the two slide rods.
[0008] Through the above technical solution, buffer springs are fixedly installed at the connection between the bottom of the limit frame and the two sliding rods. This prevents the cylinder hammer from colliding with the limit plate when it moves too high, thus protecting the limit plate and reducing its wear. When the cylinder hammer body and piston column are close to the end of their connection, the bottom of the piston column contacts the annular plate. Multiple shock-absorbing columns at the bottom of the annular plate can dampen and buffer the cylinder hammer body, reducing the collision and wear between the bottom of the cylinder hammer and the top of the piston column. This improves the service life of mechanical components and reduces the cost of maintenance and replacement parts.
[0009] Furthermore, a strike-bearing seat is integrally provided at the bottom end of the lower hammer base, and multiple sets of mounting holes are sequentially opened at the bottom end of the strike-bearing seat from small to large. A retainer is installed below the strike-bearing seat.
[0010] Through the above technical solution, a bearing seat is integrally provided at the bottom end of the lower hammer seat to bear the reaction force of the hammered workpiece. Multiple sets of mounting holes are opened in sequence from small to large at the bottom end of the bearing seat, so that different sizes of brackets can be installed at the bottom end of the bearing seat, which facilitates the fixing of hammering parts of various sizes and greatly improves the applicability of the device.
[0011] Furthermore, when the cylinder hammer body and piston rod are nearing the end of their connection, the bottom end of the piston rod is in contact with the annular plate.
[0012] With the above technical solution, when the cylinder hammer body and piston rod are close to the end of the connection, the bottom end of the piston rod is in contact with the annular plate, which can reduce the collision and wear between the bottom end of the cylinder hammer and the top end of the piston rod.
[0013] Furthermore, a plurality of connecting bolts are installed at the top of the card holder, and the plurality of connecting bolts are connected to a set of mounting holes;
[0014] The above technical solution involves installing multiple connecting bolts at the top of the card holder, which are connected to a set of mounting holes to allow for the installation and removal of the card holder.
[0015] Furthermore, multiple fixing bolts are installed at the contact point between the cylinder hammer body and the upper hammer seat;
[0016] The above technical solution involves installing multiple fixing bolts at the contact point between the cylinder hammer body and the upper hammer seat, which facilitates the later repair and replacement of damaged cylinder hammer bodies.
[0017] Furthermore, mounting bolts are installed at all four corners of the connection between the shock absorber seat and the lower hammer seat;
[0018] With the above technical solution, mounting bolts are installed at the four corners of the connection between the shock absorber seat and the lower hammer seat, which facilitates the installation and disassembly of the shock absorber seat and makes it convenient for future maintenance and replacement.
[0019] Furthermore, the bottom end of the inner wall of the cylinder hammer body is designed with rounded corners, and a diesel injector is installed at the top of the lower hammer seat;
[0020] Through the above technical solution, the bottom of the inner wall of the cylinder hammer body is designed with rounded corners to reduce the contact wear between the cylinder hammer body and the piston rod. A diesel injector is installed at the top of the lower hammer seat to facilitate the supply of diesel fuel to the cylinder hammer body and piston rod that are moving with the piston.
[0021] This utility model has the following beneficial effects:
[0022] 1. This utility model proposes a wear-resistant cylinder hammer for diesel pile driving. By fixing buffer springs at the connection between the bottom of the limiting frame and the two sliding rods, the contact and collision between the cylinder hammer and the limiting plate can be avoided when the cylinder hammer moves too high, thus protecting the limiting plate and reducing its wear. When the cylinder hammer body and piston column are close to the end of their connection, the bottom end of the piston column contacts the annular plate. Multiple shock-absorbing columns at the bottom of the annular plate can dampen and buffer the cylinder hammer body, reducing the collision and wear between the bottom end of the cylinder hammer and the top end of the piston column. This improves the service life of mechanical components and reduces the cost of maintenance and replacement parts.
[0023] 2. The wear-resistant cylinder hammer of the diesel pile driving hammer proposed in this utility model has multiple sets of mounting holes opened in ascending order at the bottom of the bearing seat, so that different sizes of brackets can be installed at the bottom of the bearing seat, which is convenient for fixing hammer parts of various sizes, greatly improving the applicability of the device. In addition, the bottom of the inner wall of the cylinder hammer body is designed with rounded corners to reduce the contact wear between the cylinder hammer body and the piston column. The cylinder hammer body is designed to be detachable, which facilitates the repair and replacement of damaged cylinder hammer body in the future. Attached Figure Description
[0024] Figure 1 This is an orthographic view of a wear-resistant cylinder hammer for a diesel pile driver proposed in this utility model.
[0025] Figure 2 This is an isometric view of a wear-resistant cylinder hammer for a diesel pile driver proposed in this utility model.
[0026] Figure 3 This is a cross-sectional view of a wear-resistant cylinder hammer for a diesel pile driver proposed in this utility model.
[0027] Figure 4 This is an isometric view of the shock absorber seat in the wear-resistant cylinder hammer of a diesel pile driver proposed in this utility model.
[0028] Figure 5 This is a front view of a wear-resistant cylinder hammer for diesel pile driving proposed in this utility model.
[0029] Legend:
[0030] 1. Upper hammer seat; 2. Cylinder hammer body; 3. Lower hammer seat; 4. Piston column; 5. Sliding rod; 6. Impact seat; 7. Mounting hole; 8. Clip seat; 9. Connecting bolt; 10. Fixing bolt; 11. Limiting bracket; 12. Buffer spring; 13. Shock absorber seat; 14. Shock absorber column; 15. Circular ring plate; 16. Mounting bolt. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1-5 This utility model provides an embodiment of a wear-resistant cylinder hammer for diesel pile driving, comprising a cylinder hammer body 2, an upper hammer seat 1 mounted on the top of the cylinder hammer body 2, a lower hammer seat 3 designed below the cylinder hammer body 2, and sliding rods 5 fixedly mounted on both sides of the top of the lower hammer seat 3. The upper hammer seat 1 is slidably connected to the two sliding rods 5. A piston rod 4 is mounted on the top of the lower hammer seat 3, a shock absorber seat 13 is mounted on one outer end of the piston rod 4, a plurality of shock absorber columns 14 are mounted on the top of the shock absorber seat 13, and a ring plate 15 is mounted on the top of the plurality of shock absorber columns 14. A limit frame 11 is mounted on one end of the two sliding rods 5, and the bottom end of the limit frame 11 is fixed at the connection point between it and the two sliding rods 5. A buffer spring 12 is installed. By fixing the buffer spring 12 at the connection between the bottom end of the limit frame 11 and the two slide rods 5, the contact and collision between the cylinder hammer and the limit plate can be avoided when the cylinder hammer moves too high. This can protect the limit plate and reduce its wear. When the cylinder hammer body 2 and the piston column 4 are close to the end of their connection, the bottom end of the piston column 4 contacts the annular plate 15. The multiple shock-absorbing columns 14 at the bottom end of the annular plate 15 can dampen and buffer the cylinder hammer body 2, reducing the collision and wear between the bottom end of the cylinder hammer and the top end of the piston column 4. This improves the service life of the mechanical parts and reduces the cost of maintenance and replacement of parts.
[0033] The bottom end of the lower hammer base 3 is integrally provided with a bearing seat 6. Multiple sets of mounting holes 7 are sequentially formed at the bottom end of the bearing seat 6, from smallest to largest. A retaining seat 8 is installed below the bearing seat 6. The bearing seat 6 integrally provided at the bottom end of the lower hammer base 3 is used to bear the reaction force of the hammered workpiece. Multiple sets of mounting holes 7 are sequentially formed at the bottom end of the bearing seat 6, from smallest to largest, allowing retaining seats 8 of different sizes to be installed at the bottom end of the bearing seat 6. This facilitates the fixing of hammering parts of various sizes, greatly improving the applicability of the device. When the connection between the cylinder hammer body 2 and the piston column 4 is nearing its end, the bottom end of the piston column 4 is in contact with the annular plate 15, thus reducing the collision and wear between the bottom end of the cylinder hammer and the top end of the piston column 4. Multiple connecting bolts 9 are installed at the top end of the retaining seat 8, and these connecting bolts 9 are connected to a set of mounting holes 7. Multiple connecting bolts 9 are installed at the top end of the retaining seat 8. Bolt 9, multiple connecting bolts 9 are connected to a set of mounting holes 7 to install and remove the clamping seat 8. Multiple fixing bolts 10 are installed at the contact point between the cylinder hammer body 2 and the upper hammer seat 1 to facilitate the later repair and replacement of the damaged cylinder hammer body 2. Mounting bolts 16 are installed at the four corners of the connection between the shock absorber seat 13 and the lower hammer seat 3 to facilitate the installation and removal of the shock absorber seat 13 and facilitate its later repair and replacement. The bottom of the inner wall of the cylinder hammer body 2 is designed with rounded corners. A diesel injector is installed at the top of the lower hammer seat 3. The rounded corners of the bottom of the inner wall of the cylinder hammer body 2 can reduce the contact wear between the cylinder hammer body 2 and the piston column 4. The diesel injector is installed at the top of the lower hammer seat 3 to facilitate the supply of diesel fuel to the piston moving cylinder hammer body 2 and piston column 4.
[0034] Working principle: By fixing buffer springs 12 at the connection points between the bottom of the limit frame 11 and the two slide rods 5, the contact and collision between the cylinder hammer and the limit plate can be avoided when the cylinder hammer moves too high, thus protecting the limit plate and reducing its wear. When the cylinder hammer body 2 and the piston column 4 are close to the end of their connection, the bottom end of the piston column 4 contacts the annular plate 15. The multiple shock-absorbing columns 14 at the bottom of the annular plate 15 can dampen and buffer the cylinder hammer body 2, reducing the collision and wear between the bottom end of the cylinder hammer and the top end of the piston column 4. This improves the service life of mechanical parts and reduces the cost of maintenance and replacement parts. Multiple sets of mounting holes 7 are opened at the bottom of the impact seat 6 in ascending order of size, so that different sizes of retainers 8 can be installed at the bottom of the impact seat 6, which is convenient for fixing hammers of various sizes and greatly improves the applicability of the device. In addition, the bottom of the inner wall of the cylinder hammer body 2 is designed with rounded corners to reduce the contact wear between the cylinder hammer body 2 and the piston column 4. The cylinder hammer body 2 is designed to be detachable, which facilitates the repair and replacement of damaged cylinder hammer body 2 in the future.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A wear-resistant cylinder hammer for diesel pile driving, comprising a cylinder hammer body (2), characterized in that: The top of the cylinder hammer body (2) is equipped with an upper hammer seat (1), and the bottom of the cylinder hammer body (2) is designed with a lower hammer seat (3). The two sides of the top of the lower hammer seat (3) are fixedly provided with sliding rods (5). The upper hammer seat (1) is slidably connected to the two sliding rods (5). The top of the lower hammer seat (3) is provided with a piston column (4). A shock absorber seat (13) is installed on one side of the piston column (4). Multiple shock absorber columns (14) are installed on the top of the shock absorber seat (13). A ring plate (15) is installed on the top of the multiple shock absorber columns (14). A limit frame (11) is installed on one end of the two sliding rods (5). A buffer spring (12) is fixedly installed at the connection between the bottom end of the limit frame (11) and the two sliding rods (5).
2. The wear-resistant cylinder hammer for diesel pile driving according to claim 1, characterized in that: The bottom end of the lower hammer seat (3) is integrally provided with a strike seat (6), and the bottom end of the strike seat (6) has multiple sets of mounting holes (7) arranged from small to large. A card seat (8) is installed below the strike seat (6).
3. The wear-resistant cylinder hammer for diesel pile driving according to claim 1, characterized in that: When the cylinder hammer body (2) and piston rod (4) are close to the end of their connection, the bottom end of the piston rod (4) is in contact with the annular plate (15).
4. The wear-resistant cylinder hammer for diesel pile driving according to claim 2, characterized in that: The top of the card holder (8) is equipped with a plurality of connecting bolts (9), which are connected to a set of mounting holes (7).
5. The wear-resistant cylinder hammer for diesel pile driving according to claim 1, characterized in that: Multiple fixing bolts (10) are installed at the contact point between the cylinder hammer body (2) and the upper hammer seat (1).
6. The wear-resistant cylinder hammer for diesel pile driving according to claim 1, characterized in that: Mounting bolts (16) are installed at the four corners of the connection between the shock absorber seat (13) and the lower hammer seat (3).
7. The wear-resistant cylinder hammer for diesel pile driving according to claim 1, characterized in that: The bottom of the inner wall of the cylinder hammer body (2) is designed with rounded corners, and a diesel injector is installed on the top of the lower hammer seat (3).