Earthwork backfill tamping device

Abstract

The utility model belongs to the technical field of building construction equipment, concretely relates to a earthwork backfill tamping device. The specific technical scheme is: including the frame main part of inside hollow, the hydraulic cylinder is arranged in the top of frame main part, the hydraulic cylinder is connected with the hydraulic system of excavator or loader, the working end of hydraulic cylinder is connected with piston rod, the other end of piston rod is connected with the hammer body through the elastic component away from the hydraulic cylinder, the lower part of frame main part is fixedly provided with the hammer head, the lower part of hammer head is fixedly provided with the rammer board. Through setting the flow through -hole of smaller size, the impact force is converted to overcome the buffer solution flow resistance work, can avoid the direct rigid impact force between the hammer body and piston rod, thereby protects the piston rod and hydraulic cylinder, prolongs the service life of piston rod.

Description

Technical Field

[0001] This utility model belongs to the field of construction equipment technology, specifically relating to an earthwork backfilling and compaction device. Background Technology

[0002] Hydraulically driven compaction devices are a type of professional compaction equipment that has been widely developed and applied in recent years. By directly installing the compaction device on a loader or excavator, the hydraulic power output of the loader or excavator is used to drive the compaction device. No other power source is required. The connection is simple, fast, and reliable, and it has good mobility, controllability, and high efficiency.

[0003] Hydraulic compaction devices can be categorized into free-fall and forced-fall types based on their operating mechanism. Free-fall compaction uses a hydraulic power source to lift the hammer to a certain height before releasing it, allowing it to fall freely and strike the compaction plate, thus compacting the ground. Forced-fall compaction uses a hydraulic power source to lift the hammer to a certain height and then rapidly apply a reverse force, causing the hammer to accelerate downwards under its own weight and hydraulic power, striking the compaction plate and compacting the ground. Existing hydraulic compactors suffer from issues with piston rods and hammers, leading to frequent and costly replacements, which is detrimental to the long-term use of the machine. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this application provides an earthwork backfilling and compaction device.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: an earthwork backfilling and compaction device, comprising a hollow frame body, a hydraulic cylinder being installed at the top of the frame body, the hydraulic cylinder being connected to the hydraulic system of an excavator or loader; a piston rod being connected to the working end of the hydraulic cylinder, and a hammer being connected to the other end of the piston rod away from the hydraulic cylinder via an elastic component; a hammer head being fixedly installed at the lower part of the frame body, and a tamping plate being fixedly installed at the lower part of the hammer head.

[0006] Preferably, the elastic component includes a flow through-hole and a buffer solution. A T-shaped connector is provided at the end of the piston rod away from the hydraulic cylinder. A mounting groove adapted to the T-shaped connector is provided on the upper surface of the hammer body. The T-shaped connector is slidably disposed in the mounting groove. The flow through-hole is disposed on the T-shaped connector. The opening at one end of the flow through-hole is located on the lower surface of the T-shaped connector, and the opening at the other end of the flow through-hole is located on the upper surface of the transverse portion of the T-shaped connector. The buffer solution is filled in the mounting groove.

[0007] Preferably, the buffer solution is hydraulic oil.

[0008] Preferably, the flow through-hole includes a zigzag through-hole, a straight through-hole, and a curved through-hole.

[0009] Preferably, a sealing ring is provided on the inner side wall of the vertical part of the mounting groove near the opening of the mounting groove.

[0010] Preferably, the lower part of the hammer body is provided with a first inclined surface, and the upper surface of the hammer head is provided with a second inclined surface corresponding to the first inclined surface, so that the upper surface of the hammer head forms a groove that fits the bottom of the hammer body.

[0011] Preferably, a connecting frame is provided at the middle position of the outer side wall of the frame body, and the connecting frame is used to connect with the working arm of the excavator or loader.

[0012] Preferably, the outer side wall of the frame body is provided with a number of vertical reinforcing ribs and horizontal reinforcing ribs, and a number of mechanical reinforcing ribs are provided between the frame body and the connecting frame.

[0013] This utility model has the following beneficial effects:

[0014] By connecting the piston rod and the hammer body with an elastic component, which includes a flow through-hole and a buffer solution, a T-shaped connector is provided at the end of the piston rod away from the hydraulic cylinder, and an inverted T-shaped mounting groove is provided on the upper surface of the hammer body. The T-shaped connector is slidably disposed in the mounting groove. The flow through-hole is located on the T-shaped connector, and the buffer solution is filled in the mounting groove. When the hydraulic cylinder drives the piston rod to move the hammer body to impact the hammer head, and when the hydraulic cylinder drives the piston cylinder to move the hammer body away from the hammer head, the lateral part of the T-shaped connector needs to squeeze the buffer solution to do work. By setting a small flow through-hole, the impact force is converted into work to overcome the flow resistance of the buffer solution, which can avoid direct rigid impact force between the hammer body and the piston rod, thereby protecting the piston rod and the hydraulic cylinder and extending the service life of the piston rod. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the compaction device of this utility model;

[0016] Figure 2 This is a cross-sectional view of the compaction device of this utility model (the compaction plate is not shown in the cross-section).

[0017] Figure 3 for Figure 2 Enlarged view of a portion of structure A in the middle;

[0018] Figure 4 for Figure 2 Another state of the A structure.

[0019] The following are labeled in the attached diagram: 1. Main frame; 2. Horizontal reinforcing rib; 3. Vertical reinforcing rib; 4. Mechanical reinforcing rib; 5. Connecting frame; 6. Ramming plate; 7. Hammer head; 8. Second inclined surface; 9. Groove; 10. First inclined surface; 11. Piston rod; 12. Hydraulic cylinder; 13. T-shaped connector; 14. Hammer body; 15. Sealing ring; 16. Flow through hole; 17. Buffer solution; 18. Mounting groove. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0021] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] like Figures 1-4 As shown, this application discloses an earthwork backfilling and compaction device, including a hollow frame body 1. The frame body 1 is a square column, and its internal structure is used to accommodate hydraulic cylinder 12, piston rod 11, hammer body 14, hammer head 7 and other structures, so as to avoid these structures being directly exposed to the external environment, reduce erosion from wind and rain, and extend the service life of each component.

[0023] A hydraulic cylinder 12 is fixedly installed at the top inside the main frame 1. The hydraulic cylinder 12 is connected to the hydraulic system of the excavator or loader through an oil pipeline. The hydraulic system of the excavator or loader provides working power for the compaction action of the compaction device, eliminating the need for an additional power source. At the same time, a connecting frame 5 is fixedly installed at the middle position of the outer side wall of the main frame 1. The working arm of the excavator or loader is detachably connected to the connecting frame 5, allowing the excavator or loader to move the compaction device to the location to be compacted.

[0024] The working end of the hydraulic cylinder 12 is connected to a piston rod 11, and the other end of the piston rod 11 away from the hydraulic cylinder 12 is connected to a hammer body 14 through an elastic component. A hammer head 7 is fixedly installed at the lower part of the frame body 1, and a tamping plate 6 is fixedly installed at the lower part of the hammer head 7.

[0025] By incorporating an elastic component, when the hydraulic cylinder 12 drives the piston rod 11 to move the hammer body 14 to impact the hammer head 7, and when the hydraulic cylinder 12 drives the piston cylinder to move the hammer body 14 away from the hammer head 7, a direct rigid impact force between the hammer body 14 and the piston rod 11 can be avoided, thereby protecting the piston rod 11 and the hydraulic cylinder 12 and extending the service life of the piston rod 11. The elastic component can be a buffer spring, a buffer elastic block, or other similar structure.

[0026] In a further embodiment, the elastic component includes a flow through-hole 16 and a buffer solution 17. A T-shaped connector 13 is provided at the end of the piston rod 11 away from the hydraulic cylinder 12. An inverted T-shaped mounting groove 18, adapted to the T-shaped connector 13, is provided on the upper surface of the hammer body 14. The T-shaped connector 13 is slidably disposed within the mounting groove 18. The flow through-hole 16 is disposed on the T-shaped connector 13, with one end opening on the lower surface of the T-shaped connector 13 and the other end opening on the upper surface of the transverse portion of the T-shaped connector 13. The buffer solution 17 fills the mounting groove 18. It should be noted that the sum of the volumes of the buffer solution 17 and the transverse portion of the T-shaped connector 13 is approximately equal to the internal space size of the transverse portion of the mounting groove 18, so that the buffer solution 17 and the transverse portion of the T-shaped connector 13 just completely fill the transverse portion of the mounting groove 18. The flow through-hole 16 has a small cross-sectional size, for example, a circular hole with a diameter of 2-5mm. The smaller the number of flow through-holes 16, the better the shock absorption effect.

[0027] like Figure 3 As shown, when the hammer body 14 is away from the hammer head 7 and the lateral part of the T-shaped connector 13 is located at the upper end of the lateral part of the mounting groove 18, the buffer solution 17 is located at the lower end of the lateral part of the mounting groove 18. When the hydraulic cylinder 12 drives the piston rod 11 to drive the hammer body 14 to strike the hammer head 7, after the lower part of the hammer body 14 contacts the upper part of the hammer head 7, the lateral part of the T-shaped connector 13 continues to move downward in the mounting groove 18. The lateral part of the T-shaped connector 13 squeezes the buffer solution 17. The buffer solution 17 at the bottom can only enter the upper part of the lateral part of the mounting groove 18 through the flow through hole 16, converting the impact force between the hammer body 14 and the piston rod 11 into work done by squeezing the buffer solution 17, thereby realizing the elastic connection between the piston rod 11 and the hammer body 14.

[0028] like Figure 4As shown, when the hammer body 14 contacts the hammer head 7 and the lateral portion of the T-shaped connector 13 is located at the lower end of the lateral portion of the mounting groove 18, the buffer solution 17 is located at the upper end of the lateral portion of the mounting groove 18. When the hydraulic cylinder 12 drives the piston rod 11 to move the hammer body 14 away from the hammer head 7, the lateral portion of the T-shaped connector 13 continues to move upward within the mounting groove 18. The lateral portion of the T-shaped connector 13 squeezes the buffer solution 17, and the upper buffer solution 17 can only enter the lower part of the lateral portion of the mounting groove 18 through the flow through hole 16. This converts the impact force between the hammer body 14 and the piston rod 11 into work done by squeezing the buffer solution 17, thereby achieving an elastic connection between the piston rod 11 and the hammer body 14. Compared with methods such as buffer springs, the elastic component of this application has a longer service life and is less prone to damage and failure by squeezing the buffer solution 17 and overcoming the flow resistance of the buffer solution 17 to reduce the impact force.

[0029] The buffer solution 17 can be a fluid medium such as water or oil. Preferably, the buffer solution 17 is hydraulic oil.

[0030] The flow through-hole 16 can be in the form of a broken line through-hole, a straight line through-hole, or a curved through-hole. Preferably, the flow through-hole 16 is in the form of a broken line through-hole or a curved through-hole to increase the flow resistance of the buffer solution 17 from top to bottom or from bottom to top and improve the damping effect.

[0031] In a preferred embodiment, to prevent the buffer solution 17 in the mounting groove 18 from flowing out, a sealing ring 15 is provided on the inner side wall of the vertical part of the mounting groove 18 near the opening of the mounting groove 18.

[0032] In a preferred embodiment, to reduce the sudden rigid impact force between the hammer body 14 and the hammer head 7, a first inclined surface 10 is provided at the lower part of the hammer body 14, and a second inclined surface 8 corresponding to the first inclined surface 10 is provided on the upper surface of the hammer head 7, so that the upper surface of the hammer head 7 forms a groove 9 that fits the bottom of the hammer body 14. When the hammer body 14 contacts the hammer head 7, the first inclined surface 10 contacts the second inclined surface 8 first, and then the horizontal lower surface of the hammer body 14 contacts the horizontal upper surface of the hammer head 7, thus avoiding a sudden increase in impact force.

[0033] In a preferred embodiment, a plurality of vertical reinforcing ribs 3 and horizontal reinforcing ribs 2 are provided on the outer side wall of the frame body 1, and a plurality of mechanical reinforcing ribs 4 are provided between the frame body 1 and the connecting frame 5. By providing vertical reinforcing ribs 3, horizontal reinforcing ribs 2, and mechanical reinforcing ribs 4, the mechanical strength of the frame body 1 and the connecting frame 5 can be improved.

[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. An earthwork backfilling and compaction device, characterized in that: The machine includes a hollow frame body (1), a hydraulic cylinder (12) is installed at the top inside the frame body (1), the hydraulic cylinder (12) is connected to the hydraulic system of the excavator or loader; the working end of the hydraulic cylinder (12) is connected to a piston rod (11), the other end of the piston rod (11) away from the hydraulic cylinder (12) is connected to a hammer body (14) through an elastic component, a hammer head (7) is fixedly installed at the lower part of the frame body (1), and a tamping plate (6) is fixedly installed at the lower part of the hammer head (7).

2. The earthwork backfilling and compaction device according to claim 1, characterized in that: The elastic component includes a flow through hole (16) and a buffer solution (17). A T-shaped connector (13) is provided at the end of the piston rod (11) away from the hydraulic cylinder (12). An installation groove (18) adapted to the T-shaped connector (13) is provided on the upper surface of the hammer body (14). The T-shaped connector (13) is slidably disposed in the installation groove (18). The flow through hole (16) is disposed on the T-shaped connector (13). The opening at one end of the flow through hole (16) is disposed on the lower surface of the T-shaped connector (13). The opening at the other end of the flow through hole (16) is disposed on the upper surface of the transverse portion of the T-shaped connector (13). The buffer solution (17) is filled in the installation groove (18).

3. The earthwork backfilling and compaction device according to claim 2, characterized in that: The buffer solution (17) is made of hydraulic oil.

4. The earthwork backfilling and compaction device according to claim 2, characterized in that: The flow through-hole (16) includes a broken line through-hole, a straight line through-hole, and a curved through-hole.

5. The earthwork backfilling and compaction device according to claim 2, characterized in that: A sealing ring (15) is provided on the inner side wall of the vertical part of the mounting groove (18) near the opening of the mounting groove (18).

6. The earthwork backfilling and compaction device according to claim 5, characterized in that: The lower part of the hammer body (14) is provided with a first inclined surface (10), and the upper surface of the hammer head (7) is provided with a second inclined surface (8) corresponding to the first inclined surface (10), so that the upper surface of the hammer head (7) forms a groove (9) that is adapted to the bottom of the hammer body (14).

7. The earthwork backfilling and compaction device according to claim 6, characterized in that: A connecting frame (5) is provided at the middle position of the outer side wall of the frame body (1), and the connecting frame (5) is used to connect with the working arm of the excavator or loader.

8. The earthwork backfilling and compaction device according to claim 7, characterized in that: The outer side wall of the frame body (1) is provided with several vertical reinforcing ribs (3) and horizontal reinforcing ribs (2), and several mechanical reinforcing ribs (4) are provided between the frame body (1) and the connecting frame (5).

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