Adjustable breaking hammer for earthwork excavation

Abstract

The adjustable breaking hammer comprises a hammer body, a connecting base is installed on one side of the hammer body, connecting openings are symmetrically formed in the connecting base, an adjusting assembly is arranged on the outer side of the connecting base, the adjusting assembly comprises a supporting plate fixed to the hammer body, and the supporting plate is connected with the hammer body. An adjusting lead screw is arranged in the middle of the supporting plate and penetrates through the supporting plate. By arranging the adjusting assembly, when an oil conveying pipe is installed, the oil conveying pipe penetrates through an adjusting plate and a supporting plate through a through hole, then a worker rotates an adjusting lead screw, and the adjusting lead screw drives the adjusting plate and a guide rod to move along the supporting plate while rotating along the supporting plate; the bending position of the oil conveying pipe can be adjusted through movement of the adjusting plate, meanwhile, the oil conveying pipe can be limited, the situation that the connecting position of the oil conveying pipe and the breaking hammer is loosened due to vibration and angle adjustment of the breaking hammer in the using process is avoided, and stability is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic breakers for earthwork excavation, and in particular to an adjustable hydraulic breaker for earthwork excavation. Background Technology

[0002] During earthwork excavation, it is necessary to select the appropriate excavation method according to the specific situation, such as drill and blast excavation, direct mechanical excavation, or static crushing method. Among them, static crushing method requires the use of a hydraulic breaker to crush the rock.

[0003] In existing rock breakers, the tilt angle is adjusted by the cylinders on the excavator. The operation of the rock breaker requires hydraulic oil to be supplied through the oil pipeline to drive the piston rod and the chisel to break the rock. During use, the tilt angle of the rock breaker needs to be adjusted to meet the usage requirements. During the adjustment process, the oil pipeline will swing with the rock breaker. Over time, this can easily lead to loosening at the connection between the oil pipeline and the rock breaker, reducing stability. Utility Model Content

[0004] The main purpose of this utility model is to provide an adjustable breaker for earthwork excavation.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] An adjustable breaker for earthwork excavation includes a hammer body, a connecting seat mounted on one side of the hammer body, symmetrically arranged connecting ports on the connecting seat, an adjustment assembly on the outer side of the connecting seat, the adjustment assembly including a support plate fixed to the hammer body, an adjustment screw rod disposed in the middle of the support plate and passing through the support plate, an adjustment plate connected above the adjustment screw rod, and guide rods mounted on both sides of the bottom end of the adjustment plate and passing through the support plate, with corresponding through holes on the adjustment plate and the support plate.

[0007] Preferably, the support plate has a threaded hole that matches the adjusting screw.

[0008] Preferably, a bearing is mounted on the adjusting plate outside the adjusting screw, and the adjusting screw is connected to the adjusting plate through the bearing.

[0009] Preferably, a turntable is fixed to the top of the adjusting screw, and an eccentric rod is installed on one side of the top of the turntable.

[0010] Preferably, a chisel is movably connected to the lower part of the hammer body, and a piston rod for driving the chisel is movably connected to the hammer body.

[0011] Preferably, the hammer body has viewing ports on both sides of the connecting seat.

[0012] Preferably, a first connecting shaft is installed on one side of the hammer body, and a second connecting shaft is provided on one side of the first connecting shaft.

[0013] Preferably, a limiting plate is fixed to the bottom end of the adjusting screw, and the diameter of the limiting plate is larger than the diameter of the adjusting screw.

[0014] The beneficial effects of this technology are:

[0015] By setting up an adjustment component, the oil pipeline can pass through the through hole into the adjustment plate and support plate during installation. Then, the operator rotates the adjustment screw, which, while rotating along the support plate, drives the adjustment plate and guide rod to move along the support plate. The movement of the adjustment plate can adjust the bending position of the oil pipeline and limit its movement, preventing loosening at the connection between the oil pipeline and the breaker hammer due to vibration and the angle adjustment of the breaker hammer during use, thus improving stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of an adjustable hydraulic breaker for earthwork excavation according to the present invention;

[0017] Figure 2 This is a bottom view of a preferred embodiment of an adjustable breaker for earthwork excavation according to the present invention;

[0018] Figure 3 This is a schematic diagram showing the connection relationship between the adjusting component, threaded hole, and bearing in a preferred embodiment of an adjustable breaker for earthwork excavation according to the present invention.

[0019] The annotations in the attached figures are explained as follows:

[0020] 1. Hammer body; 2. Connecting seat; 3. Connecting port; 4. Adjusting assembly; 401. Support plate; 402. Adjusting screw; 403. Guide rod; 404. Through hole; 405. Adjusting plate; 5. Threaded hole; 6. Bearing; 7. Turntable; 8. Eccentric rod; 9. Chisel; 10. Viewing port; 11. First connecting shaft; 12. Second connecting shaft; 13. Limiting plate. Detailed Implementation

[0021] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0022] like Figures 1-3As shown in the figure, this embodiment provides an adjustable breaker for earthwork excavation, including a hammer body 1. A connecting seat 2 is installed on one side of the hammer body 1. The connecting seat 2 is used to install a connecting port 3. The connecting seats 2 are symmetrically arranged with connecting ports 3 for connecting oil pipes. An adjustment assembly 4 is provided on the outside of the connecting seat 2. The adjustment assembly 4 includes a support plate 401 fixed on the hammer body 1. The support plate 401 can support the adjusting screw 402 and the guide rod 403. The adjusting screw 402 is provided in the upper middle part of the support plate 401. The adjusting screw 402 can drive the adjusting plate 405 to move, and the adjusting screw 402 passes through the support plate 401. The adjusting plate 405 is connected above the adjusting screw 402. The adjusting plate 405 can adjust the bending angle of the oil pipeline and limit its movement. Guide rods 403 are installed on both sides of the bottom end of the adjusting plate 405. The guide rods 403 can guide the adjusting plate 405 and pass through the support plate 401. Through holes 404 are opened on the adjusting plate 405 and the support plate 401 respectively.

[0023] like Figure 3 As shown, a threaded hole 5 is provided on the support plate 401 corresponding to the adjusting screw 402, so that the adjusting screw 402 can rotate and rise along the support plate 401 through the threaded hole 5.

[0024] like Figure 3 As shown, a bearing 6 is installed on the adjusting plate 405 outside the adjusting screw 402, and the adjusting screw 402 is connected to the adjusting plate 405 through the bearing 6, so that the adjusting screw 402 can rotate along the adjusting plate 405 through the bearing 6.

[0025] like Figure 3 As shown, a turntable 7 is fixed at the top of the adjusting screw 402, and an eccentric rod 8 is installed on one side of the top of the turntable 7, so that the operator can use the eccentric rod 8 to drive the adjusting screw 402 to rotate through the turntable 7.

[0026] like Figures 1-2 As shown, a chisel 9 is movably connected to the lower part of the hammer body 1, and a piston rod for driving the chisel 9 is movably connected inside the hammer body 1. The piston rod can drive the chisel 9 to work and crush the rock through the chisel 9.

[0027] like Figures 1-2 As shown, the hammer body 1 has viewing ports 10 on both sides of the connecting seat 2, which allows the staff to check the connection status of the oil pipeline and the connecting port 3 through the viewing ports 10 and to tighten it through the viewing ports 10.

[0028] like Figures 1-2As shown, a first connecting shaft 11 is installed on one side of the hammer body 1, and a second connecting shaft 12 is provided on one side of the first connecting shaft 11, so as to connect to the cylinder on the excavator through the first connecting shaft 11, thereby adjusting the tilt angle of the hammer body 1. The hammer body 1 is connected to the excavator through the second connecting port 3.

[0029] like Figure 3 As shown, a limiting plate 13 is fixed at the bottom of the adjusting screw 402, and the diameter of the limiting plate 13 is larger than the diameter of the adjusting screw 402, so that the adjusting screw 402 can be prevented from separating from the support plate 401 by the limiting plate 13.

[0030] The working principle of this device is as follows: In actual use, this device is connected to the cylinder on the excavator through the first connecting shaft 11, thereby adjusting the tilt angle of the hammer body 1. The hammer body 1 is connected to the excavator through the second connecting port 3. After installation, the oil supply pipe is installed to the connecting port 3 on the connecting seat 2 at the visible port 10. During the installation process, the oil supply pipe passes through the through hole 404, through the adjusting plate 405 and the support plate 401. Then, the operator rotates the adjusting screw 402, which rotates along the threaded hole 5 on the support plate 401. At the same time, the rotation will drive the adjusting plate 405 and the guide rod 403 to move along the support plate 401. The movement of the adjusting plate 405 can adjust the bending position of the oil supply pipe and limit the oil supply pipe to prevent loosening at the connection between the oil supply pipe and the breaker hammer due to vibration and the angle adjustment of the breaker hammer during use, thus improving stability.

[0031] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

Claims

1. An adjustable hydraulic breaker for earthwork excavation, characterized in that: The device includes a hammer body (1), a connecting seat (2) is installed on one side of the hammer body (1), and connecting ports (3) are symmetrically arranged on the connecting seat (2). An adjustment component (4) is arranged on the outside of the connecting seat (2). The adjustment component (4) includes a support plate (401) fixed on the hammer body (1). An adjustment screw (402) is arranged in the middle of the support plate (401) and the adjustment screw (402) passes through the support plate (401). An adjustment plate (405) is connected above the adjustment screw (402), and guide rods (403) are installed on both sides of the bottom end of the adjustment plate (405). The guide rods (403) pass through the support plate (401). Through holes (404) are correspondingly opened on the adjustment plate (405) and the support plate (401).

2. The adjustable breaker for earthwork excavation according to claim 1, characterized in that: The support plate (401) has a threaded hole (5) that matches the adjusting screw (402).

3. The adjustable breaker for earthwork excavation according to claim 1, characterized in that: A bearing (6) is installed on the adjusting plate (405) outside the adjusting screw (402), and the adjusting screw (402) is connected to the adjusting plate (405) through the bearing (6).

4. The adjustable breaker for earthwork excavation according to claim 2, characterized in that: The top of the adjusting screw (402) is fixed with a turntable (7), and an eccentric rod (8) is installed on one side of the top of the turntable (7).

5. An adjustable hydraulic breaker for earthwork excavation according to claim 1, characterized in that: A chisel (9) is movably connected to the lower part of the hammer body (1), and a piston rod for driving the chisel (9) is movably connected inside the hammer body (1).

6. The adjustable breaker for earthwork excavation according to claim 5, characterized in that: The hammer body (1) has viewing ports (10) on both sides of the connecting seat (2).

7. The adjustable breaker for earthwork excavation according to claim 1, characterized in that: A first connecting shaft (11) is installed on one side of the hammer body (1), and a second connecting shaft (12) is provided on one side of the first connecting shaft (11).

8. The adjustable breaker for earthwork excavation according to claim 1, characterized in that: The bottom end of the adjusting screw (402) is fixed with a limiting plate (13), and the diameter of the limiting plate (13) is larger than the diameter of the adjusting screw (402).

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