Adjustable drag head device and drag suction dredger
By designing an adjustable rake head device, which connects the main body, movable cover, support beam, and cutting rake teeth via a rotating shaft, and combining drive components and control components, the problem of the rake head's inability to independently adjust the cutting depth and angle has been solved. This enables flexible and precise adjustment of the cutting depth and angle, improving the efficiency and quality of dredging operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-27
AI Technical Summary
The existing rake head device cannot independently adjust the cutting depth and cutting angle, resulting in poor adaptability and failure to achieve the best construction conditions.
Design an adjustable rake head device, which is connected to the rotating shaft of the cutting rake teeth through the main body, movable cover, support beam and cutting rake teeth. The cutting depth and cutting angle are adjusted by the first and second driving components respectively, and intelligent control is achieved by combining with the control components.
It enables flexible and precise adjustment of cutting depth and cutting angle, improving the efficiency and quality of dredging operations and adapting to different soil conditions.
Smart Images
Figure CN224048258U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to dredging engineering technical field especially, relates to adjustable harrow head device and drag suction dredger. BACKGROUND
[0002] As important equipment in dredging engineering, drag suction dredger mainly functions through harrow head to cut and dig underwater soil, and sucks the dug soil into the ship to store or directly transports to the designated place to reach the purpose of widening the channel, deepening the harbor basin and maintaining the water depth. In the operation process, the drag suction dredger controls the harrow head to drop to the appropriate depth, and relies on the movement of the ship to drive the harrow head to move for cutting operation.
[0003] The structure of the harrow head in the prior art (such as Figure 1 The harrow head is mainly composed of a fixed body 100 and a support cover 200, which are hinged through a rotating shaft hole 300 and driven by a single driving oil cylinder 500 to rotate the support cover 200 as a whole. The support cover 200 is welded with a harrow tooth structure 400, and when the driving oil cylinder 500 extends and retracts, the support cover 200 drives the harrow tooth structure 400 to change the inclination angle synchronously to adjust the cutting posture.
[0004] However, since the harrow tooth structure 400 is rigidly connected with the support cover 200, the cutting posture of the harrow tooth structure 400 to the ground changes synchronously with the support cover 200, and independent adjustment of the cutting depth and the cutting angle cannot be realized, so that the space for adjusting the support cover 200 and the fixed harrow tooth structure 400 according to the actual construction environment is very limited, and therefore the optimal efficiency of the construction state cannot be realized. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of adjustable harrow head device and drag suction dredger to solve the technical problems that harrow head cannot independently adjust cutting depth and cutting angle in prior art, and poor adaptability.
[0006] As conceived above, the technical scheme adopted by the utility model is as follows:
[0007] On the one hand, the utility model provides a kind of adjustable harrow head device, comprising:
[0008] A main body;
[0009] A movable cover is rotatably connected with the main body by a first rotating shaft;
[0010] A cutting assembly comprising a support beam and a cutting harrow tooth, the support beam is provided with a plurality of cutting harrow teeth along the extension direction of the support beam, and the support beam is rotatably connected with the movable cover by a second rotating shaft;
[0011] a first driving member configured to drive the movable cover to rotate around the first rotating shaft to adjust a cutting depth of the cutting tines;
[0012] a second driving member configured to drive the support beam to rotate around the second rotating shaft to adjust a cutting angle of the cutting tines.
[0013] Preferably, the first driving member is a first adjusting oil cylinder, which comprises a first body and a first telescopic rod. The first body is arranged on the main body, and the first telescopic rod is coaxially arranged with the first body and can extend and retract along its own axis. The telescopic end of the first telescopic rod is connected with the movable cover.
[0014] Preferably, the movable cover is fixedly connected with a first spherical hinge seat, and the telescopic end of the first telescopic rod is hinged with the first spherical hinge seat.
[0015] Preferably, the second driving member is a second adjusting oil cylinder, which comprises a second body and a second telescopic rod. The second body is arranged on the movable cover, and the second telescopic rod is coaxially arranged with the second body and can extend and retract along its own axis. The telescopic end of the second telescopic rod is connected with the support beam.
[0016] Preferably, the support beam is fixedly connected with a second spherical hinge seat, and the telescopic end of the second telescopic rod is hinged with the second spherical hinge seat.
[0017] Preferably, the first driving member is provided with at least two, and a plurality of the first driving members are arranged in intervals along the extension direction of the movable cover; and / or, the second driving member is provided with at least two, and a plurality of the second driving members are arranged in intervals along the extension direction of the support beam.
[0018] Preferably, the two ends of the support beam are respectively fixedly connected with support end plates, and the support end plates and the movable cover are rotationally connected through the first rotating shaft; and / or, the main body has two oppositely arranged auxiliary end plates, and the two ends of the movable cover are rotationally connected with the auxiliary end plates through the second rotating shaft.
[0019] Preferably, the adjustable harrow head device further comprises a control assembly, which comprises an input device, an operation device and a controller. The input device is used to obtain soil condition parameters, the operation device can generate target cutting depth and target cutting angle based on the soil condition parameters, and the controller is used to control the operation of the first driving member and the second driving member.
[0020] Preferably, the control assembly further comprises a detector, which can be inserted into the soil to be measured to detect the soil condition parameters of the soil to be measured and transmit the soil condition parameters to the input device.
[0021] In another aspect, the utility model provides a drag suction dredger too, including the ship body, the ship body is equipped with adjustable rake head device above mentioned.
[0022] The utility model discloses the beneficial effects of:
[0023] The adjustable rake head device provided by the utility model, the main body as the basic support structure provides firm support for the whole device. The design that the movable cover is rotatably connected with the main body through the first pivot, and the support beam is rotatably connected with the movable cover through the second pivot, makes each component can realize relative rotation, and also ensures the structural stability. In actual dredging operation, under the action of complex external force, the first pivot and the second pivot can effectively disperse stress, avoid loosening or damage due to uneven force at the connection part. The first driving part drives the movable cover to rotate around the first pivot to adjust the cutting depth of the cutting rake tooth, and the principle is to directly control the vertical cutting amount of the cutting rake tooth by changing the inclination angle of the movable cover, to realize flexible and accurate adjustment of the cutting depth. Similarly, the second driving part drives the support beam to rotate around the second pivot to adjust the cutting angle, so that the multiple cutting rake teeth arranged along the extension direction of the support beam can change the contact angle with the cutting surface synchronously, and then independently adjust the attack angle of the cutting rake tooth, to realize flexible and accurate adjustment of the cutting angle of the cutting rake tooth. In summary, the adjustable rake head device is supported by the main body, and the pivot connection between the movable cover and the main body and the support beam and the movable cover ensures the structural stability. And the first driving part and the second driving part accurately and flexibly adjust the cutting depth and the cutting angle respectively, so that the drag suction dredger can adapt to different soil, effectively improve the efficiency and quality of dredging operation. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is the structural schematic diagram of the rake head provided in the background art;
[0025] Figure 2 It is the structural schematic diagram of the adjustable rake head device provided by the utility model embodiment one.
[0026] In the drawing:
[0027] 100, fixed body;200, support cover;300, rotating shaft hole;400, rake tooth structure;500, driving oil cylinder;
[0028] 1, main body;11, auxiliary end plate;2, movable cover;21, first ball hinge seat;3, cutting assembly;31, support beam;32, cutting rake tooth;33, second ball hinge seat;34, support end plate;4, first adjusting oil cylinder;5, second adjusting oil cylinder;6, first pivot;7, second pivot. DETAILED DESCRIPTION
[0029]
[0029] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.
[0030] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0031] In the present application, unless explicitly defined and limited otherwise, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0032] The technical scheme of the present application is further illustrated below by combining the drawings and through specific embodiments.
[0033] The cutter suction dredger is an important equipment in dredging engineering, which mainly functions to cut and dig underwater soil through the cutter head, and to suck the dug soil into the ship for storage or directly transport to the designated place, so as to achieve the purpose of widening the channel, deepening the harbor basin and maintaining the depth of the water area. In the operation process, the cutter suction dredger controls the cutter head to be lowered to the appropriate depth, and relies on the movement of the ship to drive the cutter head to move for cutting operation.
[0034] The structure of the cutter head in the prior art (as shown in Figure 1 The structure of the cutter head in the prior art (as shown in
[0035] However, since the rake tooth structure 400 is rigidly connected with the support cover 200, the cutting posture of the rake tooth structure 400 to the ground changes synchronously with the support cover 200, and independent adjustment of the cutting depth and the cutting angle cannot be realized, so that the space for adjusting the support cover 200 and the fixed rake tooth structure 400 according to the actual construction environment is very limited, and therefore the optimal efficiency of the construction state cannot be realized.
[0036] Embodiment one
[0037] The adjustable rake head device can realize adjustment of the cutting depth and the cutting angle of the rake head, so that the optimal construction state can be achieved.
[0038] Referring to Figure 2 The adjustable rake head device provided by the embodiment of the utility model includes a main body 1, a movable cover 2, a cutting assembly 3, a first driving part and a second driving part. The movable cover 2 is rotatably connected with the main body 1 through a first rotating shaft 6. The cutting assembly 3 includes a support beam 31 and cutting rake teeth 32. The support beam 31 is provided with a plurality of cutting rake teeth 32 along the extending direction of the support beam 31. The support beam 31 is rotatably connected with the movable cover 2 through a second rotating shaft 7. The first driving part is used for driving the movable cover 2 to rotate around the first rotating shaft 6, so as to adjust the cutting depth. The second driving part is used for driving the support beam 31 to rotate around the second rotating shaft 7, so as to adjust the cutting angle.
[0039] The utility model discloses an adjustable harrow head device, the host body 1 is as basic support structure, provides stable support for whole device. The movable cover 2 is rotatably connected with the host body 1 through the first pivot 6, and the support beam 31 is rotatably connected with the movable cover 2 through the second pivot 7, which makes the relative rotation between the components, and ensures the structural stability. In actual dredging operation, under the action of complex external force, the first pivot 6 and the second pivot 7 can effectively disperse stress, avoid loosening or damage due to uneven stress at the connecting part. The first driving part drives the movable cover 2 to rotate around the first pivot 6 to adjust the cutting depth, and the principle is to directly control the vertical cutting amount of the cutting harrow tooth 32 by changing the inclination angle of the movable cover 2, to realize flexible and accurate adjustment of the cutting depth of the cutting harrow tooth 32. Similarly, the second driving part drives the support beam 31 to rotate around the second pivot 7 to adjust the cutting angle, so that the plurality of cutting harrow teeth 32 arranged along the extension direction of the support beam 31 can synchronously change the contact angle with the surface to be cut, and then independently adjust the attack angle of the cutting harrow tooth 32, to realize flexible and accurate adjustment of the cutting angle of the cutting harrow tooth 32. In summary, the adjustable harrow head device is supported by the host body 1, and the structure is stable through the pivot connection between the movable cover 2 and the host body 1 and the support beam 31 and the movable cover 2. And the first driving part and the second driving part accurately and flexibly adjust the cutting depth and the cutting angle respectively, so that the drag suction dredger can adapt to different soil, effectively improve the efficiency and quality of dredging operation.
[0040] The specific structure of the adjustable harrow head device will be described below.
[0041] The host body 1 is the basic bearing structure of the whole adjustable harrow head device, and provides an installation and support platform for other components. The host body 1 is made of high-strength metal material, which has sufficient strength and rigidity to withstand various forces generated during dredging operation, including cutting force, water flow impact force and gravity of the equipment itself. The shape and structure design of the host body 1 is determined according to the actual application scene and the cooperation requirements with other components. The host body 1 is provided with mounting interfaces and positioning structures to accurately connect and assemble with the movable cover 2, the first driving part and other components, so that the components can stably operate cooperatively during work.
[0042] The two ends of the support beam 31 are respectively fixedly connected with support end plates 34, and the support end plates 34 and the movable cover 2 are rotatably connected through the first pivot 6. Alternatively, the host body 1 has two oppositely arranged auxiliary end plates 11, and the two ends of the movable cover 2 are rotatably connected with the auxiliary end plates 11 through the second pivot 7. The support end plates 34 and the auxiliary end plates 11 increase the strength and stability of the connecting parts of the support beam 31 and the movable cover 2, and the movable cover 2 and the host body 1, to avoid loosening or damage of the connection during frequent rotation and cutting force bearing.
[0043] The first driving member is a first adjusting oil cylinder 4. The first adjusting oil cylinder 4 comprises a first main body and a first telescopic rod. The first main body is arranged on the main body 1. The first telescopic rod is coaxially arranged with the first main body and can extend and retract along the axis of itself. The telescopic end of the first telescopic rod is connected with the movable cover 2. When the cutting depth needs to be adjusted, the first telescopic rod of the first adjusting oil cylinder 4 extends and retracts along the axis of itself relative to the first main body under the action of hydraulic pressure. Since the telescopic end of the first telescopic rod is connected with the movable cover 2, the extension and retraction of the first telescopic rod drives the movable cover 2 to rotate around the second rotation shaft 7, thereby changing the inclination angle of the movable cover 2 and realizing the adjustment of the cutting depth.
[0044] When the adjustable cutter head device is in operation, the external force acting on the movable cover 2 is not completely regular due to the complex actual working conditions. When the first telescopic rod drives the movable cover 2 to rotate to adjust the cutting depth, if a rigid connection is adopted, the connection part is prone to damage due to stress concentration when the movable cover 2 changes the angle, twists or deviates unexpectedly due to uneven soil, which may even cause the device to stop running. Therefore, the first ball hinge seat 21 is fixedly connected to the movable cover 2, and the telescopic end of the first telescopic rod is hinged to the first ball hinge seat 21. The first ball hinge seat 21 allows a certain angle of rotation in multiple directions and can adaptively adjust the connection angle. Thus, in the complex stress environment of dredging operation, the structural damage and jamming caused by rigid connection can be effectively avoided. At the same time, the first ball hinge seat 21 helps to more evenly distribute the force transmitted by the first telescopic rod, reduces the situation of excessive local stress, and thus prolongs the service life of the connection part.
[0045] The second driving member is a second adjusting oil cylinder 5. The second adjusting oil cylinder 5 comprises a second main body and a second telescopic rod. The second main body is arranged on the movable cover 2. The second telescopic rod is coaxially arranged with the second main body and can extend and retract along the axis of itself. The telescopic end of the second telescopic rod is connected with the support beam 31. When the cutting angle needs to be adjusted, the second telescopic rod of the second adjusting oil cylinder 5 extends and retracts along the axis of itself relative to the second main body. Since the telescopic end of the second telescopic rod is connected with the support beam 31, the extension and retraction of the second telescopic rod drives the support beam 31 to rotate around the first rotation shaft 6, thereby changing the cutting angle of the cutting teeth 32.
[0046] Preferably, the second ball hinge seat 33 is fixedly connected to the support beam 31, and the telescopic end of the second telescopic rod is hinged to the second ball hinge seat 33. When the support beam 31 changes the angle, twists or deviates unexpectedly due to uneven soil stress, the connection angle can be adaptively adjusted through the second ball hinge seat 33 to avoid structural damage and jamming caused by rigid connection. At the same time, the second ball hinge seat 33 helps to disperse stress, making the force transmitted by the second telescopic rod more evenly distributed, thereby prolonging the service life of the connection part.
[0047] It should be understood that the above-mentioned adjustment mode of the first adjusting oil cylinder 4 and the second adjusting oil cylinder 5 is only an exemplary embodiment, and those skilled in the art can select other equivalent driving forms according to actual working condition requirements. For example, the first driving member can adopt an electric push rod cooperating with a gear and rack mechanism, the gear is driven to rotate by the motor, and the rack is driven to move linearly, thereby driving the movable cover 2 to rotate around the hinge shaft; the second driving member can also be replaced by a worm gear transmission mechanism, the rotational motion of the worm input shaft is converted into the angular displacement output of the worm gear and the supporting beam 31, thereby realizing the accurate adjustment of the cutting angle. In addition, the driving schemes such as the combination of the pneumatic actuator and the lever arm, the linear motor cooperating with the crank slider mechanism, etc. can also realize the independent rotation control of the movable cover 2 and the supporting beam 31. Although the above-mentioned alternative schemes differ in power source or transmission form, their essence is to independently control the motion output of the two groups of execution mechanisms to realize the decoupled adjustment of the inclination angle of the movable cover 2 and the angle of the supporting beam 31, respectively, and therefore they all belong to the equivalent replacement category of the technical concept of the utility model.
[0048] The first driving member is provided with at least two, and a plurality of first driving members are arranged at intervals along the extension direction of the movable cover 2; and / or, the second driving member is provided with at least two, and a plurality of second driving members are arranged at intervals along the extension direction of the supporting beam 31. By respectively arranging a plurality of first driving members and second driving members, the movable cover 2 and the supporting beam 31 can be more uniformly stressed during adjustment, preventing the movable cover 2 and the supporting beam 31 from being twisted and deformed due to uneven local stress, and ensuring the accuracy and stability of the cutting depth and angle adjustment. In addition, the plurality of driving members provide a redundant design, when part of the first or second driving members fails, the remaining driving members can still maintain certain driving and adjusting ability, ensuring the continuous operation of the harrow head device and improving the reliability of the system.
[0049] In the embodiment, the first driving member and the second driving member are respectively provided with two, in other embodiments, the number can be adaptively adjusted according to actual working conditions, such as one, three or four first driving members or second driving members, which will not be repeated here.
[0050] In order to realize the intelligent control effect of the first driving member and the second driving member, the adjustable harrow head device further comprises a control assembly, the control assembly comprises an input device, an operation device and a controller, the input device is used to obtain soil condition parameters, the operation device can generate target cutting depth and target cutting angle based on the soil condition parameters, and the controller is used to control the operation of the first driving member and the second driving member.
[0051] Wherein, the target cutting depth refers to the optimal depth value of the cutting harrow tooth 32 tip vertically cutting into the working surface, representing the penetration amount of the cutting harrow tooth 32 in the vertical direction to the soil layer; the target cutting angle refers to the optimal angle value formed by the cutting harrow tooth 32 blade plane and the tangent direction of the contact point of the working surface, reflecting the mechanical action direction of the cutting harrow tooth 32 when cutting into the soil layer. In actual operation, the specific values of the above parameters need to be dynamically adapted according to the real-time geological characteristics, ship speed and construction target, which are not limited here.
[0052] In use, first, according to the properties of the target dredged soil, the soil condition parameters are obtained through the input device, and then the target cutting depth and the target cutting angle are generated based on the obtained soil condition parameters through the operation device. Then, the controller controls the first driving member to drive the movable cover 2 to rotate, so as to change the relative inclination angle of the movable cover 2 as a whole to the bottom surface, directly control the vertical cutting amount of the cutting harrow tooth 32, and thus realize the accurate adjustment of the cutting depth, until the cutting depth reaches the target cutting depth; and the second driving member is driven to rotate the support beam 31, so that the plurality of cutting harrow teeth 32 arranged along the extension direction of the support beam 31 can synchronously change the contact angle with the surface to be cut, and thus independently adjust the attack angle of the cutting harrow tooth 32, until the cutting angle reaches the target cutting angle, so as to reach the best construction state.
[0053] Specifically, the controller includes a cutting depth unit and a cutting angle unit, both of which are signal connected with the operation device for receiving data from the operation device. The cutting depth unit is connected with the first driving member for controlling the first driving member to drive the movable cover 2 to rotate and monitoring the cutting depth in real time; the cutting angle unit is connected with the second driving member for controlling the second driving member to drive the support beam 31 to rotate and monitoring the cutting angle in real time.
[0054] In addition, the control assembly further includes a detector which can be inserted into the soil to be measured to detect the soil condition parameters of the soil to be measured and transmit them to the input device. The soil condition parameters include the compactness, humidity and composition of the soil.
[0055] More specifically, the detector includes a pressure sensor, a humidity sensor and a composition analysis sensor. The pressure sensor can measure the compactness of the soil to be measured by detecting the reaction force of the soil to be measured on the probe of the pressure sensor and converting it into a corresponding electrical signal or digital signal to reflect the hardness of the soil to be measured. The humidity sensor is used to accurately measure the water content in the soil. The composition analysis sensor determines the composition of the soil, such as clay, sandy soil or mixed soil, through spectral analysis, chemical detection and other technical means. The pressure sensor, the humidity sensor and the composition analysis sensor collect soil condition parameters in all directions and convert them into signal forms that can be recognized and processed by the operation device, providing accurate data basis for subsequent operation and decision-making.
[0056] In addition, in actual work, some special situations or unconventional geological data may be encountered, which may not be input into the control assembly through the automatic acquisition mode of the detector; or in some cases, when the detector is damaged, the operator is also allowed to manually input the soil layer type, water content and other parameters in the geological survey report through the human-computer interaction interface, thereby improving the adaptability and versatility of the control assembly.
[0057] Further, the control assembly further comprises a cutting resistance predictor, which can predict the cutting resistance faced by the cutting rake tooth 32 when working at the current cutting depth and cutting angle according to the soil condition parameters obtained by the inputter. Since different soil conditions have different effects on cutting resistance, the current cutting depth and cutting angle can be judged by accurately predicting the cutting resistance. If the predicted cutting resistance exceeds a reasonable range, it means that the current cutting parameters may not be conducive to efficient operation or may cause excessive wear to the equipment. At this time, the cutting resistance predictor automatically calculates the cutting depth and cutting angle that need to be adjusted to make the cutting resistance return to a reasonable range based on its internal algorithm. And these new parameter values are transmitted to the controller, which controls the first drive and the second drive to move accordingly, to realize the dynamic adjustment of the cutting depth and angle to adapt to different soil condition parameters.
[0058] Preferably, the control assembly further comprises a display component for displaying the cutting depth and cutting angle. So that the operator can intuitively understand whether the cutting depth and cutting angle meet the expectations, so as to adjust in time. Moreover, the display component can be configured with a human-computer interaction interface to facilitate the operator to manually input the system parameters. The display component can be a liquid crystal display, a touch screen display, etc., which will not be described here.
[0059] In addition, the control assembly further comprises an accumulator for increasing a certain value based on the existing cutting angle and cutting depth. For example, in some special dredging scenarios, when it is necessary to change the cutting depth or cutting angle in a certain area multiple times to achieve a specific excavation effect. Assuming that the cutting depth adjusted by the operator through the operator and the controller is h1, and the cutting angle is θ1, the operator inputs the cutting depth value Δh and the cutting angle value Δθ that need to be increased into the accumulator through the human-computer interaction interface according to the actual demand. After receiving the instruction, the accumulator increases the existing cutting depth h1 by Δh to obtain a new cutting depth h2 = h1 + Δh; increases the existing cutting angle θ1 by Δθ to obtain a new cutting angle θ2 = θ1 + Δθ. Then, the accumulator transmits the new cutting depth h2 and the cutting angle θ2 to the controller, and the controller controls the first drive and the second drive to operate again according to the new parameters, drives the movable cover 2 and the support beam 31 to rotate, and adjusts the cutting depth and the cutting angle to the new values to meet the special operation requirements.
[0060] It should be noted that the operation device, the controller, the cutting resistance predictor and the accumulator involved in the utility model are specific implementation principles that belong to the conventional technical means that can be understood and implemented by those skilled in the art. The core innovation point of the technical scheme of the utility model is that the technical effect of adjusting the cutting depth and the cutting angle is realized through the cooperative matching of the specific structure design and the above-mentioned control assembly, so the conventional technical contents such as the bottom operation details of the operation device, the controller, the cutting resistance predictor and the accumulator are not expanded and described in detail here.
[0061] The use steps of the adjustable harrow head device provided by the utility model embodiment are as follows:
[0062] Firstly, the detector is inserted into the soil to be measured, the soil quality condition parameters of the soil to be measured are detected and generated, and are transmitted to the input module, and the soil quality condition parameters are manually input by the operator through the man-machine interactive interface.
[0063] Then, the input module transmits the acquired soil quality condition parameters to the operation module, the operation module analyzes based on the soil quality condition parameters through an algorithm, and generates the corresponding target cutting depth and target cutting angle according to the actual working condition.
[0064] Then, the control module adjusts the hydraulic system, so that the first telescopic rod performs telescopic movement along the axial direction of the first telescopic rod relative to the first main body under the action of the hydraulic pressure. Since the first telescopic rod is connected with the movable cover 2, the telescopic movement of the first telescopic rod drives the movable cover 2 to rotate around the second rotating shaft 7, thereby changing the inclination angle of the movable cover 2 and directly controlling the vertical cutting amount of the cutting harrow tooth 32. In this process, the control module continuously monitors the cutting depth and compares it with the target cutting depth, and when the cutting depth does not reach the target value, the telescopic amount of the first telescopic rod is continuously adjusted until the cutting depth reaches the target cutting depth. Similarly, the control module controls the hydraulic system, so that the second telescopic rod performs telescopic movement along the axial direction of the second telescopic rod relative to the second main body under the action of the hydraulic pressure. Since the second telescopic rod is connected with the supporting beam 31, the telescopic movement of the second telescopic rod drives the supporting beam 31 to rotate around the first rotating shaft 6, thereby changing the contact angle of the plurality of cutting harrow teeth 32 arranged along the extension direction of the supporting beam 31 and the surface to be cut. The control module continuously monitors the cutting angle and compares it with the target cutting angle, and when the cutting angle does not reach the target value, the telescopic amount of the second telescopic rod is adjusted in time until the cutting angle reaches the target cutting angle, and until the best construction state is reached.
[0065] Embodiment two
[0066] The utility model embodiment further provides a drag suction dredger, including ship body, the ship body is provided with adjustable formula rake head device in the embodiment one. Adjustable formula rake head device can be according to actual soil condition flexible adjustment cutting depth and cutting angle, make drag suction dredger no matter face soft silt, hard sandy soil or all kinds of mixed soil, can effectively carry out dredging work, expand the scope of application, can execute the task in more complex water area environment, speed up the overall dredging engineering progress.
[0067] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited to the above embodiments. Without departing from the spirit and scope of the present application, various changes and modifications can be made to the present application. These changes and modifications fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. An adjustable rake head device, characterized in that, include: Main body (1); The movable cover (2) is rotatably connected to the main body (1) via the first rotating shaft (6); The cutting assembly (3) includes a support beam (31) and cutting rake teeth (32). The support beam (31) is provided with a plurality of cutting rake teeth (32) along its own extension direction. The support beam (31) and the movable cover (2) are rotatably connected by a second rotating shaft (7). The first driving component is used to drive the movable cover (2) to rotate around the first rotating shaft (6) to adjust the cutting depth of the cutting rake teeth (32); The second driving member is used to drive the support beam (31) to rotate around the second rotating shaft (7) to adjust the cutting angle of the cutting rake teeth (32).
2. The adjustable rake head device according to claim 1, characterized in that, The first driving component is selected as the first adjusting cylinder (4). The first adjusting cylinder (4) includes a first body and a first telescopic rod. The first body is disposed on the main body (1). The first telescopic rod is coaxially disposed with the first body and can extend and retract along its own axis. The telescopic end of the first telescopic rod is connected to the movable cover (2).
3. The adjustable rake head device according to claim 2, characterized in that, The movable cover (2) is fixedly connected to a first ball joint seat (21), and the telescopic end of the first telescopic rod is hinged to the first ball joint seat (21).
4. The adjustable rake head device according to claim 1, characterized in that, The second driving component is a second adjusting cylinder (5). The second adjusting cylinder (5) includes a second body and a second telescopic rod. The second body is mounted on the movable cover (2). The second telescopic rod is coaxially mounted with the second body and can extend and retract along its own axis. The telescopic end of the second telescopic rod is connected to the support beam (31).
5. The adjustable rake head device according to claim 4, characterized in that, A second ball joint seat (33) is fixedly connected to the support beam (31), and the telescopic end of the second telescopic rod is hinged to the second ball joint seat (33).
6. The adjustable rake head device according to claim 1, characterized in that, At least two first driving members are provided, and multiple first driving members are arranged at intervals along the extension direction of the movable cover (2); And / or, at least two of the second drive members are provided, and a plurality of the second drive members are arranged at intervals along the extension direction of the support beam (31).
7. The adjustable rake head device according to claim 1, characterized in that, The two ends of the support beam (31) are respectively fixedly connected to support end plates (34), and the support end plates (34) and the movable cover (2) are rotatably connected through the first rotating shaft (6); And / or, the main body (1) has two oppositely arranged auxiliary end plates (11), and the two ends of the movable cover (2) are rotatably connected to the auxiliary end plates (11) through the second rotating shaft (7).
8. The adjustable rake head device according to claim 1, characterized in that, The adjustable rake head device also includes a control component, which includes an input device, a calculator, and a controller. The input device is used to acquire soil condition parameters, the calculator is able to generate a target cutting depth and a target cutting angle based on the soil condition parameters, and the controller is used to control the operation of the first drive component and the second drive component.
9. The adjustable rake head device according to claim 8, characterized in that, The control component also includes a detector that can be inserted into the soil to be tested, detect the soil condition parameters that generate the soil to be tested, and transmit the soil condition parameters to the input device.
10. A trailing suction hopper dredger, characterized in that, Includes a hull, the hull being equipped with an adjustable rake head device as described in any one of claims 1-9.