Auxiliary arm for small pile driver
By designing the secondary arm structure of the front arm and the fixed seat, the problem of easy wear of the oil circuit adapter of the bent secondary arm of the small pile driver is solved, and the durability of the stable connection and oil pipe is achieved, which improves the service life and stability of the connection.
Patent Information
- Application Number
- CN202422413419.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The bent secondary arm oil circuit adapter of existing small pile drivers is prone to wear and leak oil, resulting in unstable connection.
A secondary arm structure including a front arm, a fixing seat and an oil circuit adapter is designed. The oil circuit adapter is fixed to the front arm by connecting the shaft sleeve to the pile driver, which avoids wear of the oil pipe and increases stability through reinforcement ribs.
It realizes a stable connection between a small pile driver and an excavator, avoids wear of the oil pipe, extends service life, and improves the stability of the structure and the convenience of connection.
Smart Images
Figure CN223088525U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pile drivers, and more specifically to a sub-arm used for a small pile driver. Background Technique
[0002] A pile driver is a pile driving machine that uses impact force to drive piles into the ground. A pile driver consists of a pile hammer, a pile frame, and auxiliary equipment. The basic technical parameters of a pile driver are the weight of the impact part, the impact kinetic energy, and the impact frequency.
[0003] The existing sub-arm used for connecting a small pile driver to an excavator is a bent sub-arm. The oil circuit adapter plate of the bent sub-arm hangs vertically, and problems such as easy wear and oil leakage of the oil pipe are likely to occur.
[0004] Therefore, there is an urgent need for a sub-arm used for a small pile driver. Summary of the Invention
[0005] The technical problem that the utility model needs to solve is to provide a sub-arm used for a small pile driver to solve the problems in the background technique.
[0006] To solve the above technical problems, the following technical solutions are adopted in the utility model.
[0007] A sub-arm used for a small pile driver, which is connected between an excavator and a pile driver, includes a front arm connected to the pile driver and having an inner cavity. The other end of the front arm is connected with a fixed seat; an oil circuit block valve group is arranged in the upper part of the inner cavity of the front arm, and the oil circuit block valve group is connected with an oil circuit adapter plate arranged in the lower part of the inner cavity of the front arm; the oil circuit adapter plate is connected with a cooperating oil pipe, and the oil pipe is fixed on the front arm; a bucket shaft is connected to the fixed seat, and the bucket shaft is connected with the excavator.
[0008] Further optimizing the technical solution, the front arm includes a pair of side plates that are bent from the upper right to the lower left and whose width gradually becomes smaller. The two side plates are arranged relatively parallel; an upper cover plate is connected between the upper edges of the side plates, and a lower cover plate is connected between the lower edges of the sides; connection shaft sleeves are respectively arranged at the bottom ends of the side plates, and the two connection shaft sleeves cooperate with each other; lifting lugs are arranged at the higher parts of the upper cover plate and the lower cover plate.
[0009] Further optimizing the technical solution, a plurality of inner reinforcing ribs are connected between the side plates.
[0010] Further optimizing the technical solution, impact plates are arranged at the lower ends of the upper cover plate and the lower cover plate, and the lowest end of the impact plate is located above the highest end of the connection shaft sleeve.
[0011] Further optimize the technical solution. The fixed seat includes a middle partition plate connected to the right side of the front end of the front arm. A pair of fixing plates arranged in the same direction as the side plates are connected to the middle partition plate. A bucket shaft is connected between the fixing plates. A seamless pipe is arranged at the connection between the fixing plate and the bucket shaft, and retaining rings are respectively arranged at both ends of the bucket shaft.
[0012] Further optimize the technical solution. A number of fixing and strengthening ribs are arranged between the fixing plate and the middle partition plate, and a number of strengthening plates are arranged between the middle partition plate and the side plate.
[0013] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model is as follows.
[0014] A sub-arm used for a small pile driver provided by the present utility model is connected to the pile driver through the connecting shaft sleeve of the front arm and connected to the excavator's forearm through the fixed seat, realizing a stable connection between the small pile driver and the excavator. By arranging the oil circuit adapter plate and the connected oil pipes on the front arm, the oil pipes are prevented from being worn and the service life is increased. The present utility model has the advantages of simple structure, high stability, convenient connection and long service life. Description of the Drawings
[0015] Figure 1 is a structural schematic diagram of the present utility model;
[0016] Figure 2 is a side view of the present utility model;
[0017] Figure 3 is a top view of the present utility model.
[0018] Wherein: 1. Front arm, 11. Side plate, 12. Upper cover plate, 13. Lower cover plate, 14. Inner strengthening rib, 15. Impact plate, 16. Connecting shaft sleeve, 17. Lifting lug, 2. Oil circuit block valve group, 3. Fixed seat, 31. Middle partition plate, 32. Fixing plate, 33. Seamless pipe, 34. Fixing and strengthening rib, 4. Oil circuit adapter plate, 5. Bucket shaft, 6. Retaining ring, 7. Strengthening plate. Detailed Embodiment
[0019] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.
[0020] A sub-arm used for a small pile driver is connected between the excavator and the pile driver. As shown in Figures 1 to 3 , it includes a front arm 1, an oil circuit block valve group 2, a fixed seat 3, an oil circuit adapter plate 4, a bucket shaft 5, a retaining ring 6, and a strengthening plate 7. The front arm 1 includes a side plate 11, an upper cover plate 12, a lower cover plate 13, an inner strengthening rib 14, an impact plate 15, a connecting shaft sleeve 16, and a lifting lug 17; the fixed seat 3 includes a middle partition plate 31, a fixing plate 32, a seamless pipe 33, and a fixing and strengthening rib 34.
[0021] The front arm 1 is located at the lower end and is connected to the pile driver, and the interior of the front arm 1 has a cavity.
[0022] The front arm 1 includes a pair of side plates 11 that are bent from the upper right to the lower left. The two side plates 11 are arranged relatively parallel, and the width of the side plates 11 gradually decreases. A number of internal reinforcing ribs 14 are connected between the side plates 11. The setting direction of the internal reinforcing ribs 14 is perpendicular to the midline of the side plates to increase the connection stability. An upper cover plate 12 is connected between the upper edges of the two side plates 11, and a lower cover plate 13 is connected between the lower edges of the two side edges. Lifting lugs 17 are provided at the higher parts of the upper cover plate 12 and the lower cover plate 13 to facilitate hoisting during the installation of the auxiliary arm. Connecting shaft sleeves 16 are provided at the bottom ends of the side plates 11, and the two connecting shaft sleeves 16 are in the same position and are used in cooperation.
[0023] Impact plates 15 are provided at the lower ends of the upper cover plate 12 and the lower cover plate 13, and the lowest end of the impact plate 15 is located above the highest end of the connecting shaft sleeve 16.
[0024] The higher end of the front arm 1 is connected to a fixed seat 3; the fixed seat 3 includes a middle partition plate 31 connected to the right side edge of the front arm 1, and a pair of fixing plates 32 arranged in the same direction as the side plates 11 are connected to the middle partition plate 31. A bucket shaft is connected between the fixing plates on the fixed seat 3, and the bucket shaft 5 is connected to the excavator. A seamless pipe 33 is provided at the connection between the fixing plate 32 and the bucket shaft 5, and retaining rings 6 are provided at both ends of the bucket shaft 5.
[0025] A number of fixing and strengthening ribs 34 are provided between the fixing plate 32 and the middle partition plate 31, and a number of strengthening plates 7 are provided between the middle partition plate 31 and the side plates 11 to increase the connection stability.
[0026] An oil circuit block valve group 2 is provided in the upper part of the cavity of the front arm 1. The oil circuit block valve group 2 is connected to an oil circuit adapter plate 4 provided in the lower part of the cavity of the front arm 1. The oil circuit adapter plate 4 is connected to cooperating oil pipes, and the oil pipes are fixed on the front arm 1 to prevent oil leakage caused by wear of the oil pipes and increase the service life of the entire oil circuit.
[0027] When the utility model is actually used, the fixed seat is connected to the excavator's forearm through the bucket shaft, and the auxiliary arm is connected to the pile driver through the connecting shaft sleeve. When operating the excavator, the auxiliary arm and the pile driver move along with the excavator's forearm, and pile driving and extraction operations at different heights and positions can be realized.
Claims
1. An auxiliary arm for a small pile driver, which is connected between an excavator and a pile driver, and is characterized in that: It includes a front-end arm (1) connected to a pile driver and having an inner cavity, and a fixed seat (3) is connected to the other end of the front-end arm (1); an oil circuit block valve group (2) is arranged in the upper part of the inner cavity of the front-end arm (1), and an oil circuit transfer board (4) arranged in the lower part of the inner cavity of the front-end arm (1) is connected to the oil circuit block valve group (2); the oil circuit transfer board (4) is connected to a cooperating oil pipe, and the oil pipe is fixed on the front-end arm (1); a bucket shaft (5) is connected to the fixed seat (3), and the bucket shaft (5) is connected to an excavator.
2. The auxiliary arm used in a small pile driver according to claim 1, characterized in that: The front-end arm (1) includes a pair of side plates (11) that are bent from the upper right to the lower left and gradually decrease in width, and the two side plates (11) are arranged relatively parallel; an upper cover plate (12) is connected between the upper edges of the side plates (11), and a lower cover plate (13) is connected between the lower edges of the sides; connecting shaft sleeves (16) are respectively opened at the bottom ends of the side plates (11), and the two connecting shaft sleeves (16) cooperate with each other; lifting lugs (17) are arranged at the higher parts of the upper cover plate (12) and the lower cover plate (13).
3. The auxiliary arm used in a small pile driver according to claim 2, characterized in that: A number of inner reinforcing ribs (14) are connected between the side plates (11).
4. The auxiliary arm used in the small pile driver according to claim 2, characterized in that: Impact plates (15) are arranged at the low ends of the upper cover plate (12) and the lower cover plate (13), and the lowest end of the impact plate (15) is located above the highest end of the connecting shaft sleeve (16).
5. The auxiliary arm for a small pile driver according to claim 2, characterized in that: The fixed seat (3) includes a middle partition board (31) connected to the right-side edge of the front-end arm (1), and a pair of fixing plates (32) arranged in the same direction as the side plates (11) are connected to the middle partition board (31); a bucket shaft is connected between the fixing plates (32), a seamless pipe (33) is arranged at the connection part of the fixing plate and the bucket shaft (5), and retaining rings (6) are respectively arranged at both ends of the bucket shaft (5).
6. The auxiliary arm used in the small pile driver according to claim 5, characterized in that: A number of fixing reinforcing ribs (34) are arranged between the fixing plate (32) and the middle partition board (31), and a number of reinforcing plates (7) are arranged between the middle partition board (31) and the side plates (11).