A mobile grounding device applied to a backhoe dredger

Abstract

The utility model discloses a movable type grounding device for backhoe dredger, by main part structure, moving mechanism, height adjusting mechanism, top buffer mechanism and power station constitute, the top of main part structure is linked with top buffer mechanism, and the lower part is connected moving mechanism and height adjusting mechanism, moving mechanism is used for driving grounding device to move, and height adjusting mechanism is used for adjusting the height of grounding device, makes grounding device to be in by moving mechanism and drives its moving state or in by height adjusting mechanism and supports the state, both by power station provides power, top buffer mechanism includes shelf, spring and displacement sensor, and the shelf is located above main part structure, and spring is installed between shelf and main part structure, and displacement sensor is installed on main part structure, is used for detecting the position of shelf, the utility model speeds up grounding and moves the speed and prolongs grounding service life, improves construction efficiency and security as a whole.

Description

Technical Field

[0001] This utility model relates to the field of dredging engineering technology, and in particular to a mobile pier device for use on a backhoe dredger. Background Technology

[0002] Backhoe dredgers undertake numerous dredging projects; however, these projects vary in size and have significantly different dredging depth requirements, with some projects differing by as much as ten meters in depth. Therefore, backhoe dredgers are typically equipped with multiple booms of varying lengths to allow for frequent boom changes depending on the working conditions.

[0003] After completing its work, the backhoe dredger returns to the deck for maintenance or to be permanently deployed. During this process, its components need to be securely supported and fixed. Currently, backhoe dredgers use two iron blocks to support the boom, with wooden blocks placed on top. When switching between different booms for different projects, the existing blocks are often unsuitable in height and position, requiring replacement. However, due to the significant weight of the blocks, manual handling is extremely difficult, usually requiring multiple people, and there is a risk of the blocks collapsing and injuring people during transport.

[0004] Furthermore, the cab is far from the support platform, obstructing the driver's view and preventing them from seeing the platform's exact location. Therefore, on-site personnel are required to remotely direct the driver to lower the boom each time. This not only wastes manpower but also, due to time errors in command transmission and feedback, frequently causes the wooden blocks supporting the support platform to be deformed and damaged by the heavy boom, requiring frequent replacements – a time-consuming and labor-intensive process. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a safe and efficient mobile berth device for backhoe dredgers. After the boom is replaced, the mobile berth device can be quickly moved to a new position using a hydraulic motor-driven roller. The height is then adjusted to a suitable height using a height adjustment mechanism, and finally, a top buffer mechanism supports the boom. This utility model accelerates the berth movement speed and extends the berth's service life, thereby improving overall construction efficiency and safety.

[0006] This utility model is implemented as follows: a mobile pier device applied to a backhoe dredger, wherein the backhoe of the backhoe dredger is composed of a boom, a boom pier, a forearm, and a forearm pier. This movable support structure comprises a main structure, a moving mechanism, a height adjustment mechanism, a top buffer mechanism, and a power station. The top of the main structure is connected to the top buffer mechanism, the lower part connects to the moving mechanism and the height adjustment mechanism, and the side is connected to the power station. The moving mechanism, powered by the power station, moves the entire support structure. The height adjustment mechanism, also powered by the power station, adjusts the height of the support structure, allowing it to move either driven by the moving mechanism or supported by the height adjustment mechanism. The top buffer mechanism includes a shelf, a spring, and a displacement sensor. The shelf is located above the main structure, the spring is installed between the shelf and the main structure, and the displacement sensor is installed on the main structure to detect the shelf's position. The power station provides kinetic energy to both the moving mechanism and the height adjustment mechanism.

[0007] In the above technical solution, preferably, the main structure is a cuboid structure and is made of steel plates spliced ​​together.

[0008] In the above technical solution, preferably, the moving mechanism includes a column, a hydraulic motor, and rollers. The column is mounted on the main structure, the rollers are rotatably mounted on the bottom of the column, and the hydraulic motor is powered by a power station to drive the rollers to rotate.

[0009] In the above technical solution, preferably, the height adjustment mechanism includes a hydraulic cylinder and a base. The hydraulic cylinder is mounted on the main structure, and the base is mounted on the end of the telescopic rod of the hydraulic cylinder. The hydraulic cylinder is powered by a power station and is used to drive the base to retract above the bottom end of the moving mechanism or extend below the bottom end of the moving mechanism.

[0010] In the above technical solution, preferably, the top buffer mechanism further includes a spring seat, which is respectively installed on the main structure and the shelf, and the spring is installed between the two spring seats for limiting and guiding the spring.

[0011] In the above technical solution, preferably, the power station is a hydraulic power station, which includes a motor pump unit, an oil tank, and a hydraulic control valve. The suction port of the motor pump unit is connected to the outlet of the oil tank, and the outlet of the motor pump unit is connected to the hydraulic motor of the moving mechanism and the hydraulic cylinder of the height adjustment mechanism through the hydraulic control valve. The return port of the hydraulic control valve is connected to the return port of the oil tank.

[0012] After replacing the forearm, the original support position and height often fail to meet the support requirements. In this case, the hydraulic power station of the support device is activated. The hydraulic power station provides hydraulic energy, causing the hydraulic cylinders in the height adjustment mechanism to retract to the base, and the rollers of the moving mechanism to touch the ground. Then, the hydraulic power station continues to provide hydraulic energy, driving the hydraulic motor to rotate the rollers, thereby moving the entire support device until it reaches the optimal support point for the new forearm.

[0013] Upon reaching the designated position, the hydraulic power station provides hydraulic energy again, causing the hydraulic cylinder of the height adjustment mechanism to extend, the base to touch the ground, and simultaneously the rollers of the moving mechanism to lift off the ground, adjusting the pier device to the appropriate height. Subsequently, the operator lowers the backhoe boom, the lower part of which contacts the shelf of the top buffer mechanism. As the boom continues to descend, the shelf compresses the spring and gradually moves closer to the displacement sensor.

[0014] When the new forearm presses further against the shelf, bringing it close enough to the displacement sensor, the sensor detects the shelf and sends a signal to the operator. Upon receiving the signal, the operator stops the lowering motion of the new forearm, at which point it is positioned correctly.

[0015] This utility model has the following advantages and beneficial effects: (1) The mobile shelf device of this utility model can be quickly moved to a new position without manual handling, which greatly improves work efficiency and reduces the risk of injury to workers.

[0016] (2) The mobile support device of this utility model has a top buffer function, which reduces the risk of the top position being crushed by the forearm, improves construction efficiency, and extends service life.

[0017] (3) The mobile support device of this utility model has a position feedback function. Each time the forearm is lowered to the support, the position of the top shelf of the support changes, triggering the displacement sensor to automatically send a signal to the driver in the control room. The driver immediately stops the lowering action of the forearm. No on-site personnel are required to cooperate, saving labor and transmitting signals more quickly with less error. Attached Figure Description

[0018] Figure 1 This is a diagram showing the position of the movable support device when the backhoe is equipped with a long boom, according to an embodiment of this utility model. Figure 2 This is a diagram showing the position of the movable support device when the backhoe is equipped with a boom, according to an embodiment of this utility model. Figure 3 This is a diagram showing the position of the movable support device when the backhoe is equipped with a short boom, according to an embodiment of this utility model. Figure 4This is a perspective view of the movable support device provided in an embodiment of the present invention when it is not compressed by the forearm. Figure 5 This is a front view of the movable support device provided in an embodiment of the present invention when it is not squeezed by the forearm; Figure 6 This is a perspective view of the movable support device provided in an embodiment of the present invention when it is squeezed by a forearm. Figure 7 This is a perspective view of the movable support device provided in an embodiment of the present invention during movement.

[0019] In the diagram: A. Boom; B. Boom support; C. Forearm; C1. Long forearm; C2. Medium forearm; C3. Short forearm; D. Forearm support; D1. Support state with long forearm; D2. Support state with medium forearm; D3. Support state with short forearm; 1. Shelf; 2. Spring; 3. Spring seat; 4. Main structure; 5. Column; 6. Roller; 7. Motor pump set; 8. Oil tank; 9. Hydraulic motor; 10. Hydraulic control valve; 11. Displacement sensor; 12. Hydraulic cylinder; 13. Base. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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. In addition, the terms "one," "two," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example Please see Figures 1 to 7 This embodiment provides a mobile pier device for a backhoe dredger. The backhoe dredger consists of a boom A, a boom pier B, a forearm C, and a forearm pier D.

[0024] The movable support device consists of a main structure 4, a moving mechanism, a height adjustment mechanism, a top buffer mechanism, and a power station. The top of the main structure 4 is connected to the top buffer mechanism, the lower part is connected to both the moving mechanism and the height adjustment mechanism, and the side is connected to the power station. The moving mechanism is powered by the power station to move the entire support device. The height adjustment mechanism is powered by the power station to adjust the height of the entire support device, so that the device is either moved by the moving mechanism or supported by the height adjustment mechanism. The top buffer mechanism includes a shelf 1, a spring 2, and a displacement sensor 11. The shelf 1 is located above the main structure 4, the spring 2 is installed between the shelf 1 and the main structure 4, and the displacement sensor 11 is installed on the main structure 4 to detect the position of the shelf 1. The power station provides kinetic energy to the moving mechanism and the height adjustment mechanism, respectively.

[0025] In one preferred embodiment, the main structure 4 is the support body of the entire support device, and is a long rectangular parallelepiped structure made of steel plates.

[0026] In a preferred embodiment, the moving mechanism includes a column 5, a hydraulic motor 9, and rollers 6. The column 5 is mounted on the main structure 4, and the rollers 6 are rotatably mounted on the bottom of the column 5. The hydraulic motor 9 is powered by a power station and drives the rollers 6 to rotate. When it is necessary to move the support device, the hydraulic motor 9 starts and drives the rollers 6 to rotate, thereby moving the support device and changing its position.

[0027] In a preferred embodiment, the height adjustment mechanism includes a hydraulic cylinder 12 and a base 13. The hydraulic cylinder 12 is mounted on the main structure 4, and the base 13 is mounted on the end of the telescopic rod of the hydraulic cylinder 12. The hydraulic cylinder 12 is powered by a power station and is used to drive the base 13 to retract above or below the bottom roller 6 of the moving mechanism. When the height of the support device needs to be adjusted, the hydraulic cylinder 12 will extend or retract. The height of the support device is adjusted by changing the length of the hydraulic cylinder 12 (extending or retracting its telescopic rod), so that the entire support device is either moved by the moving mechanism or supported by the height adjustment mechanism, thereby meeting the actual usage requirements.

[0028] In a preferred embodiment, the top buffer mechanism further includes spring seats 3, which are respectively mounted on the main structure 4 and the shelf 1. A spring 2 is mounted between the two spring seats 3 for limiting and guiding its movement. When the shelf 1 is pressed down by the forearm C, it compresses the spring 2, which then generates a certain reaction force acting on the shelf 1. Furthermore, as the downward stroke of the shelf 1 increases, i.e., the pressure on the spring 2 increases, the reaction force generated by the spring 2 also increases. When the distance between the shelf 1 and the displacement sensor 11 reaches a suitable range, the displacement sensor 11 sends a signal, transmitting the information to the driver in the control room.

[0029] In a preferred embodiment, the power station is a hydraulic power station, comprising a motor-pump assembly 7, an oil tank 8, and a hydraulic control valve 10. The suction port of the motor-pump assembly 7 is connected to the outlet of the oil tank 8. The outlet of the motor-pump assembly 7 is connected via the hydraulic control valve 10 to the hydraulic motor 9 of the moving mechanism and the hydraulic cylinder 12 of the height adjustment mechanism, respectively. The return port of the hydraulic control valve 10 is connected to the return port of the oil tank 8. The motor-pump assembly 7 draws oil from the oil tank 8 and then outputs it through the hydraulic control valve 10 to provide power to the hydraulic cylinder 12 or the hydraulic motor 9, thereby controlling the extension and retraction of the hydraulic cylinder 12 and the forward and reverse rotation of the hydraulic motor 9.

[0030] The specific implementation process of this utility model is as follows: First, after replacing the forearm C, when it is necessary to move the forearm support pedestal D, the hydraulic power station of the support device is activated. The motor pump unit 7 of the hydraulic power station provides hydraulic energy to retract the hydraulic cylinder 12 of the height adjustment mechanism to the base 13, while gradually bringing the roller 6 of the moving mechanism to the ground. Then, the hydraulic power station provides hydraulic energy to drive the hydraulic motor 9 to rotate the roller 6, moving the entire support device until it reaches the optimal support point of the new forearm C. At this time, the motor pump unit 7 of the hydraulic power station provides hydraulic energy to extend the hydraulic cylinder 12 of the height adjustment mechanism, allowing the base to... 13. The machine touches the ground, and simultaneously, the rollers 6 of the moving mechanism are gradually lifted off the ground, eventually adjusting the support block to the appropriate height. Then, the operator lowers the new boom C, causing its lower part to contact the shelf 1 of the top buffer mechanism. The shelf 1 then compresses the spring 2, and simultaneously, the shelf 1 gradually approaches the displacement sensor 11. When the new boom C further presses against the shelf 1, bringing it close enough to the displacement sensor 11, the displacement sensor 11 senses the shelf 1 and sends a signal back to the operator. The operator then stops the lowering of the new boom C, and it is now in place. When replacing the boom C again, the above connection process is repeated.

[0031] This utility model, when applied to actual construction and production, will bring huge economic benefits and has good promotional value.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mobile pier device for use on a backhoe dredger, characterized in that: It consists of a main structure, a moving mechanism, a height adjustment mechanism, a top buffer mechanism, and a power station. The top of the main structure is connected to the top buffer mechanism, the lower part is connected to the moving mechanism and the height adjustment mechanism, and the side is connected to the power station. The moving mechanism is powered by the power station to move the entire support structure. The height adjustment mechanism is powered by the power station to adjust the height of the entire support structure, so that the support structure is either moved by the moving mechanism or supported by the height adjustment mechanism. The top buffer mechanism includes a shelf, a spring, and a displacement sensor. The shelf is located above the main structure, the spring is installed between the shelf and the main structure, and the displacement sensor is installed on the main structure to detect the position of the shelf. The power station provides kinetic energy to the moving mechanism and the height adjustment mechanism, respectively.

2. The mobile pier device for a backhoe dredger according to claim 1, characterized in that, The main structure is a cuboid structure, assembled from steel plates.

3. The mobile pier device for a backhoe dredger according to claim 1, characterized in that, The moving mechanism includes a column, a hydraulic motor, and rollers. The column is mounted on the main structure, and the rollers are rotatably mounted on the bottom of the column. The hydraulic motor is powered by a power station and is used to drive the rollers to rotate.

4. The mobile pier device for a backhoe dredger according to claim 1, characterized in that, The height adjustment mechanism includes a hydraulic cylinder and a base. The hydraulic cylinder is mounted on the main structure, and the base is mounted on the end of the telescopic rod of the hydraulic cylinder. The hydraulic cylinder is powered by a power station and is used to drive the base to retract above the bottom end of the moving mechanism or extend below the bottom end of the moving mechanism.

5. The mobile pier device for a backhoe dredger according to claim 1, characterized in that, The top buffer mechanism also includes spring seats, which are respectively installed on the main structure and the shelf. The spring is installed between the two spring seats for limiting and guiding the spring.

6. The mobile pier device for a backhoe dredger according to claim 1, characterized in that, The power station is a hydraulic power station, which includes a motor pump unit, an oil tank, and a hydraulic control valve. The suction port of the motor pump unit is connected to the outlet of the oil tank. The outlet of the motor pump unit is connected to the hydraulic motor of the moving mechanism and the hydraulic cylinder of the height adjustment mechanism through the hydraulic control valve. The return port of the hydraulic control valve is connected to the return port of the oil tank.

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