A foot control boom swing mechanism for an excavator

Abstract

The utility model relates to excavator equipment technical field especially relates to a foot control swing mechanism of boom side for excavator, including the swing steering seat that is set up on the frame through the main pivot, the hydraulic cylinder that is hingedly set up on the frame and is used for adjusting the horizontal deflection of swing steering seat, wherein excavator boom lower end hingedly set up on swing steering seat, the utility model discloses through the hydraulic valve of using footboard to adjust the hydraulic cylinder, thereby control adjustment swing steering seat's deflection, thereby still can adopt foot control swing of boom under the condition that both hands do not leave operating handle state, additionally still through the deflection angle sensor to the deflection angle of swing steering seat is detected, and the deflection angle is transmitted to the display screen to the operator carries out accurate adjustment in order to assist, thereby make the working process more coherent smooth, significantly improved operating efficiency and precision.

Description

Technical Field

[0001] This utility model relates to the field of excavator equipment technology, and in particular to a foot pedal controlled boom side swing mechanism for excavators. Background Technology

[0002] In this era of mechanization, users are increasingly adopting mechanized production to replace manual labor, significantly reducing the workload of construction workers. Mini excavators, with their compact size, are suitable for various applications such as indoors, orchards, and construction projects. Workers can change different attachments to achieve different operating methods, including rotary drilling, breaking, and log grabbing. When working in confined spaces or very close to walls, mini excavators cannot fully unload and load soil using only the rotating control panel. Therefore, some mini excavators have booms with a side-swing function; this side-swing function requires adjustment via a handle.

[0003] However, when operating an excavator, it is difficult to effectively coordinate these actions using only the handle when it is necessary to simultaneously move the stick forward and backward, open the bucket, and swing the boom to the side. This results in reduced operating efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a foot-operated boom side-swing mechanism for excavators, which solves the problem that conventional excavators cannot simultaneously operate the stick forward and backward movement, bucket extension, and boom side-swing.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model provides a foot-operated boom side-swing mechanism for an excavator, including a side-swing steering seat mounted on the frame via a main shaft, and a hydraulic cylinder hinged to the frame for adjusting the horizontal deflection of the side-swing steering seat; wherein the lower end of the excavator boom is hinged to the side-swing steering seat. The high-pressure oil line of the hydraulic cylinder is connected to the main oil pump, and a hydraulic valve is installed on the high-pressure oil line; a carriage base is also installed on the frame, and a foot pedal is installed on the carriage base, and the foot pedal controls the hydraulic valve. A deflection angle sensor is also installed on the side-swing steering seat, and a display screen is installed above the base of the carriage. The detection signal of the deflection angle sensor is transmitted to the display screen through an encoder controller.

[0006] In this embodiment, hinge seats are symmetrically arranged on both sides of the side-swing steering seat. One end of the hydraulic cylinder is hinged to the frame via a first deflection adjustment shaft, and the other end is connected to the hinge seat on the side-swing steering seat via a second deflection adjustment shaft.

[0007] Furthermore in this embodiment, a limiting bracket is also hinged to the frame via a second limiting hinge shaft, and the other end of the limiting bracket is coaxially hinged to the second deflection adjustment shaft via a first limiting hinge shaft.

[0008] Furthermore in this embodiment, the hydraulic cylinder is provided with an inlet and a return port. The inlet is connected to the hydraulic valve through a high-pressure oil line, and the return port is connected to the hydraulic station through a high-pressure oil line.

[0009] Furthermore in this embodiment, the hydraulic valve is located below the foot pedal, the upper end of the foot pedal is hinged to the base of the carriage, the lower part of the foot pedal is connected to the hydraulic valve via a valve stem, and a spring for adjusting the reset of the foot pedal is sleeved on the valve stem.

[0010] Furthermore, in this embodiment, the deflection angle sensor is a magnetic angle sensor.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows: In this invention, the hydraulic valve of the hydraulic cylinder is adjusted by using a foot pedal, thereby controlling the deflection of the side-swing steering seat. This allows the boom to be controlled by foot pedal without removing the hands from the operating handle. In addition, a deflection angle sensor detects the deflection angle of the side-swing steering seat and transmits the deflection angle to the display screen to assist the operator in making accurate adjustments. This makes the working process more smooth and continuous, and significantly improves operating efficiency and accuracy. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings. Figure 1 This is a schematic diagram of the adjustment structure of the foot-operated boom side-swing mechanism of this utility model used in excavators; Figure 2 This is a schematic diagram of the adjustment section of the foot-operated boom side-swing mechanism for excavators according to the present invention; Figure 3 This is a top view schematic diagram of the hydraulic cylinder installation in the foot-operated boom side-swing mechanism of this utility model for use on an excavator; Figure 4 This is a schematic diagram illustrating the adjustment principle of the foot-operated boom side-swing mechanism used in excavators according to this utility model; Figure 5 This is a schematic diagram of the pedal structure in the foot-operated boom side-swing mechanism of the present invention used on an excavator.

[0013] Explanation of reference numerals in the attached drawings: 1. Chassis; 2. Side-swing steering seat; 21. Main shaft; 3. Limiting bracket; 31. First limiting hinge shaft; 32. Second limiting hinge shaft; 4. Hydraulic cylinder; 41. First deflection adjustment shaft; 42. Inlet; 43. Outlet; 44. Second deflection adjustment shaft; 5. Chassis base; 6. Foot pedal; 61. Hydraulic valve; 7. Deflection angle sensor; 8. Display screen. Detailed Implementation

[0014] This embodiment discloses a foot-operated boom side-swing mechanism for an excavator, including a side-swing steering seat 2 mounted on a frame 1 via a main shaft 21, and a hydraulic cylinder 4 hinged to the frame 1 for adjusting the horizontal deflection of the side-swing steering seat 2; wherein the lower end of the excavator boom is hinged to the side-swing steering seat 2.

[0015] refer to Figure 2 and Figure 3 The side-swing steering seat 2 has symmetrically mounted hinge seats on both sides. One end of the hydraulic cylinder 4 is hinged to the frame 1 via a first deflection adjustment shaft 41, and the other end is connected to the hinge seat on the side-swing steering seat 2 via a second deflection adjustment shaft 44. A limiting bracket 3 is also hinged to the frame 1 via a second limiting hinge shaft 32. The other end of the limiting bracket 3 is coaxially hinged to the second deflection adjustment shaft 44 via the first limiting hinge shaft 31.

[0016] When the side-swing steering seat 2 is adjusted by the hydraulic cylinder 4, the side-swing steering seat 2 can be prevented from over-deflection by the limiting bracket 3, so that the deflection range of the side-swing steering seat 2 is 0-80°. Specifically, the limiting bracket 3 is located between the hydraulic cylinder 4 and the side-swing steering seat 2.

[0017] refer to Figure 1 and Figure 3 The high-pressure oil line of the hydraulic cylinder 4 is connected to the main oil pump, and a hydraulic valve 61 is installed on the high-pressure oil line. A carriage base 5 is also installed on the frame 1, and a foot pedal 6 is installed on the carriage base 5. The foot pedal 6 controls the connection of the hydraulic valve 61. The hydraulic cylinder 4 is designed with an inlet 42 and a return port 43. The inlet 42 is connected to the hydraulic valve 61 through the high-pressure oil line, and the return port 43 is connected to the hydraulic station through the high-pressure oil line.

[0018] refer to Figure 5The hydraulic valve 61 is located below the foot pedal 6. The upper end of the foot pedal 6 is hinged to the base of the carriage 5. The lower part of the foot pedal 6 is connected to the hydraulic valve 61 via a valve stem. A spring is sleeved on the valve stem to adjust the reset of the foot pedal 6. Thus, the opening and closing of the hydraulic valve 61 can be controlled by the foot pedal 6, thereby adjusting the extension and retraction of the hydraulic cylinder 4. At the same time, the angle of the boom side swing can also be adjusted by foot-assisted operation.

[0019] In this embodiment, a deflection angle sensor 7 is also installed on the side-swing steering seat 2, and a display screen 8 is installed above the chassis base 5. The detection signal of the deflection angle sensor 7 is transmitted to the display screen 8 through an encoding controller. Specifically, the encoding controller is used to collect the original signal of the sensor, and after analog-to-digital conversion, filtering and calibration calculation, the actual deflection angle value of the side-swing steering seat 2 is obtained. The angle data is then transmitted to the display screen 8 for real-time display via a CAN bus (or other communication protocol) to assist the operator in precise control. The deflection angle sensor is a magnetic angle sensor. The deflection angle sensor 7 adjusts the side-swing steering seat 2 in real time to assist the operator in adjusting and controlling the deflection angle.

[0020] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A foot-operated boom sway mechanism for an excavator, comprising a sway steering seat (2) mounted on a frame (1) via a main shaft (21), and a hydraulic cylinder (4) hinged to the frame (1) and used to adjust the horizontal deflection of the sway steering seat (2); wherein the lower end of the excavator boom is hinged to the sway steering seat (2); characterized in that: The high-pressure oil line of the hydraulic cylinder (4) is connected to the main oil pump, and a hydraulic valve (61) is provided on the high-pressure oil line; a car body base (5) is also provided on the frame (1), and a foot pedal (6) is provided on the car body base (5), and the foot pedal (6) controls the connection of the hydraulic valve (61). A deflection angle sensor (7) is also provided on the side-swing steering seat (2), and a display screen (8) is also provided above the car body base (5). The detection signal of the deflection angle sensor (7) is transmitted to the display screen (8) through the encoder controller.

2. The foot-operated boom side-swing mechanism for an excavator according to claim 1, characterized in that: The lateral steering seat (2) is symmetrically provided with hinge seats on both sides. One end of the hydraulic cylinder (4) is hinged to the frame (1) through the first deflection adjustment shaft (41), and the other end is connected to the hinge seat on the lateral steering seat (2) through the second deflection adjustment shaft (44).

3. The foot-operated boom side-swing mechanism for an excavator according to claim 2, characterized in that: A limiting bracket (3) is also hinged to the frame (1) via a second limiting hinge shaft (32). The other end of the limiting bracket (3) is coaxially connected to the second deflection adjustment shaft (44) via a first limiting hinge shaft (31).

4. The foot-operated boom side-swing mechanism for an excavator according to claim 1, characterized in that: The hydraulic cylinder (4) is provided with an inlet (42) and a return port (43). The inlet (42) is connected to the hydraulic valve (61) through a high-pressure oil pipe, and the return port (43) is connected to the hydraulic station through a high-pressure oil pipe.

5. The foot-operated boom side-swing mechanism for an excavator according to claim 4, characterized in that: The hydraulic valve (61) is located below the foot pedal (6). The upper end of the foot pedal (6) is hinged to the car body base (5). The lower part of the foot pedal (6) is connected to the hydraulic valve (61) through a valve stem, and a spring for adjusting the reset of the foot pedal (6) is sleeved on the valve stem.

6. The foot-operated boom side-swing mechanism for an excavator according to claim 1, characterized in that: The deflection angle sensor is a magnetic angle sensor.

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