Multi-section type vehicle system integrating soil cutting and continuous soil conveying functions

Abstract

The invention discloses a multi-section vehicle system integrating soil cutting and continuous soil conveying functions, and belongs to the technical field of building construction. Comprising an earth cutting vehicle which is provided with a rotary digging head and an earth cutting vehicle conveying mechanism, and the rotary digging head is in butt joint with the earth cutting vehicle conveying mechanism; a first machine table conveying mechanism and a second machine table conveying mechanism are arranged at the front end and the rear end of the transition conveying vehicle correspondingly; the telescopic conveying vehicle is provided with a telescopic conveying mechanism and is used for earthwork conveying and unloading; the earth cutting vehicle conveying mechanism, the first machine table conveying mechanism, the second machine table conveying mechanism and the telescopic conveying mechanism are in butt joint in sequence, so that the earth cutting vehicle, the transition conveying vehicle and the telescopic conveying vehicle form a vehicle system integrating earth excavation, conveying and discharging. A transporter does not need to be arranged on an excavation site to carry earthwork independently, only the earth cutting vehicle carries out excavation work, the problems of time waste and low efficiency caused by the fact that the transporter enters and exits the construction site independently in traditional construction are solved, and the overall construction efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a multi-stage vehicle system integrating the functions of digging and continuously delivering soil. Background Art

[0002] When excavating underground spaces such as basements, parking lots, and subway stations, traditional construction methods rely on the coordinated work of excavators and transporters. However, existing excavators and transporters are independent equipment, and there are the following main problems in actual operation:

[0003] 1. Space limitation: In order for the transporter to enter and exit the construction site smoothly, sufficient operating space must be reserved. This not only occupies valuable construction space, but also may limit the effective implementation of other operations.

[0004] 2. Low efficiency: When multiple transporters are involved in earthwork transportation at the same time, due to limited space on site, traffic congestion is likely to occur, forcing the excavator to stop working and wait for the transporters to complete loading and leave. This stoppage phenomenon seriously affects the overall construction progress and reduces work efficiency.

[0005] 3. Increased costs: Due to the inefficiency caused by the above reasons, the project time is extended, which in turn increases the cost of manpower, machinery rental, etc. In addition, frequent shutdowns also increase additional management costs. Summary of the invention

[0006] The present invention aims at the above-mentioned problems existing in the prior art and proposes a multi-stage vehicle system integrating the functions of digging and continuously delivering soil.

[0007] The present invention can be achieved through the following technical solutions:

[0008] A multi-stage vehicle system integrating the functions of digging and continuously delivering soil, comprising:

[0009] An excavator, comprising a rotary excavator head and an excavator conveying mechanism, wherein the rotary excavator head is docked with the excavator conveying mechanism;

[0010] The transition transport vehicle has a first machine transport mechanism and a second machine transport mechanism at its front and rear ends respectively;

[0011] A telescopic transport vehicle having a telescopic transport mechanism, which is used for earthwork transport and unloading;

[0012] The excavator conveying mechanism, the first machine conveying mechanism, the second machine conveying mechanism, and the telescopic conveying mechanism are connected in sequence, so that the excavator, the transition conveying vehicle, and the telescopic conveying vehicle form a vehicle system integrating earth excavation, conveying, and unloading.

[0013] As a further improvement of the present invention, the excavator comprises:

[0014] A support frame, which is arranged at the front end of the excavator;

[0015] The rotating arm and the first hydraulic rod, the rotary excavator head is connected to the rotating arm, the rotating arm and the first hydraulic rod are hinged to form a first rotating joint, and the first hydraulic rod and the supporting frame are hinged to form a second rotating joint.

[0016] As a further improvement of the present invention, the excavator conveying mechanism comprises:

[0017] a first excavator conveyor belt, which is disposed on the rotating arm and located at the head of the excavator;

[0018] A front conveying frame of the excavator and a front conveying belt of the excavator, wherein the front conveying frame of the excavator is arranged at the bottom of the support frame, and the front conveying belt of the excavator is arranged in the front conveying frame of the excavator;

[0019] A rear conveying frame of an excavator and a rear conveying belt of the excavator, wherein the rear conveying frame of the excavator is arranged at the rear of the excavator, and the rear conveying belt of the excavator is arranged in the rear conveying frame of the excavator;

[0020] A transition conveying frame of an excavator and a transition conveying belt of an excavator, wherein the transition conveying frame of the excavator is arranged on the excavator, and the transition conveying belt of the excavator is arranged in the transition conveying frame of the excavator, wherein:

[0021] The feed end of the excavator transition conveyor belt is located at the bottom of the excavator front conveyor belt, and the discharge end of the excavator transition conveyor belt is located at the top of the excavator rear conveyor belt.

[0022] As a further improvement of the present invention, a first active rotating member is provided at the bottom of the rear conveying frame of the excavator, and the first active rotating member is driven to rotate by a motor, thereby driving the rear conveying frame of the excavator to rotate.

[0023] As a further improvement of the present invention, the first machine conveying mechanism and the second machine conveying mechanism are both configured as multi-section conveyor belt assemblies, and the single-section conveyor belt assembly includes a machine conveying frame and a machine conveyor belt, and the machine conveyor belt is arranged in the machine conveying frame.

[0024] As a further improvement of the present invention, a machine transition conveyor belt is also provided on the transition conveyor vehicle. The machine transition conveyor belt is inclined, with its feed end located at the bottom of the first machine conveying mechanism and its discharge end located at the top of the second machine conveying mechanism.

[0025] As a further improvement of the present invention, two adjacent machine conveying frames are butted end to end and are provided with a first follower rotating member, and a second active rotating member is provided between the transition conveying vehicle and the machine conveying frame.

[0026] As a further improvement of the present invention, the earthwork receiving mechanism comprises:

[0027] An earthwork receiving frame, at least one of which is used to connect with the telescopic transport vehicle, and a second follower rotating member is provided between adjacent earthwork receiving frames;

[0028] The earthwork receiving frame is provided with an earthwork receiving conveyor belt.

[0029] As a further improvement of the present invention, the telescopic conveying mechanism comprises:

[0030] An outer conveying frame, an inner conveying frame and a telescopic conveyor belt, wherein the outer conveying frame is rotatably connected to the telescopic conveying vehicle via a third active rotating member, the inner conveying frame is axially movable in the outer conveying frame, and the telescopic conveyor belt is located in the outer conveying frame and the inner conveying frame;

[0031] The telescopic conveyor vehicle is also provided with a telescopic conveyor vehicle transition conveyor belt, which is inclined, with its feed end located at the bottom of the earthwork receiving frame and its discharge end located at the top of the outer conveying frame.

[0032] As a further improvement of the present invention, a rack is provided on the surface of the inner conveying frame, and the rack is arranged along the axial direction of the inner conveying frame;

[0033] The outer conveying frame is provided with a rotating shaft and a gear. The gear is arranged on the rotating shaft and meshes with the rack. The rotating shaft is driven to rotate by a hydraulic motor to drive the gear to rotate. As the inner conveying frame moves, the effective conveying length of the telescopic conveyor belt is dynamically adjusted.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The excavator, transitional transporter and telescopic transporter form a vehicle system that integrates earthwork excavation, transportation and unloading. Therefore, there is no need to arrange a transporter to carry out the earthwork transportation work at the construction site. Only the excavator is used for the excavation work at the entire excavation site, which avoids the time waste and low efficiency caused by the separate transporter entering and exiting the construction site in traditional construction, and greatly improves the overall construction efficiency;

[0036] 2. The driving arm assembly of the excavator is a double-joint structure. The connection between the first hydraulic rod and the support frame is the first rotating joint, and the connection between the rotating arm and the first hydraulic rod is the second rotating joint. This double-joint structure design gives the driving arm assembly a larger range of motion, especially the extension ability in the vertical direction has been greatly enhanced, which can achieve effective excavation in deeper locations. This is especially important for projects that require deep excavation, such as basements and subway stations. On the other hand, it also improves the flexibility of machine operation and more accurately controls the position and posture of the rotary excavator head;

[0037] 3. The current depth of the rotary excavator can be automatically calculated through the receiver installed on the excavator and the sensor installed on the rotary excavator. This real-time depth monitoring system significantly improves the operating accuracy and safety of the excavator, especially in underground space excavation projects, such as basements, subway stations and other construction projects. Accurate depth monitoring can help avoid over-excavation or under-excavation, ensuring the quality of the project while reducing the cost of repair;

[0038] 4. The conveyor belt behind the excavator can adjust its conveying direction through the first active rotating part, and the conveyor belts of each machine of the transition conveyor vehicle are automatically adjusted through the first follower rotating part, that is, the first active rotating part is responsible for adjusting the overall angle, and the first follower rotating part allows the relative rotation between the conveying frames of each section of the machine. The two work together to improve the flexibility of the entire vehicle system when adjusting the position;

[0039] 5. Both the first machine conveying mechanism and the second machine conveying mechanism are configured as multi-section conveyor belt components. The two adjacent machine conveying frames are butted end to end and a first follower rotating member is provided at the connection between the two. This design enables the entire conveying system to move freely within a larger range while working, dynamically adjust its posture to adapt to the changing working environment, expand its effective working area, and greatly improve the flexibility of the entire conveying system;

[0040] 6. The telescopic conveyor vehicle can flexibly adjust the effective length of the telescopic conveyor belt according to the actual working conditions through the design of the telescopic conveying mechanism. It is suitable for earthwork handling tasks of various distances, expands the unloading range of the conveyor body, and can be transported to the designated unloading point within a certain range, reducing the intermediate transfer links and time costs, and significantly improving the efficiency of earthwork handling;

[0041] 7. Each vehicle is equipped with a counterweight mechanism and a gyroscope. Through real-time monitoring by the gyroscope, the control system can accurately grasp the tilt and rotation of each vehicle, thereby achieving fine-tuning of the position of the counterweight block to ensure that the equipment can maintain optimal balance under various working conditions. The automated control system reduces dependence on operators, reduces the possibility of human operating errors, and reduces the workload of operators, which not only ensures the smooth transportation of earthwork, but also ensures the safety of operators and construction sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of a multi-stage vehicle system with integrated earth-digging and continuous earth-delivering functions of the present invention;

[0043] Figure 2 It is a schematic structural diagram of the earthmoving vehicle of the present invention;

[0044] Figure 3 It is a structural schematic diagram of the transition transport vehicle of the present invention;

[0045] Figure 4 The present invention Figure 3 A partial enlarged view of the middle A;

[0046] Figure 5 The present invention Figure 3 A partial enlarged view of point B in the middle;

[0047] Figure 6 It is a structural schematic diagram of the telescopic transport vehicle of the present invention;

[0048] Figure 7 The present invention Figure 6 A partial enlarged view of point C in the middle;

[0049] Figure 8 It is a structural schematic diagram of the telescopic transport vehicle of the present invention from another perspective;

[0050] Fig. 9 The present invention Figure 8 A partial enlarged view of point D in the middle.

[0051] In the figure, 100, excavator; 110, rotary excavator head; 111, rotary crawler; 112, excavation plate; 113, baffle plate; 120, support frame; 121, third hydraulic rod; 130, rotating arm; 150, first conveyor belt of excavator; 151, material baffle plate; 160, front conveyor belt of excavator; 170, rear conveyor belt of excavator; 180, transition conveyor belt of excavator; 190, adjustment frame of excavator; 191, first active rotating member; 192, second hydraulic rod; 193, third hydraulic rod;

[0052] 200, transition conveyor; 210, first machine conveying mechanism; 220, second machine conveying mechanism; 230, machine transition conveyor belt; 240, machine conveying frame; 241, first follower rotating member; 242, second active rotating member; 250, machine conveyor belt; 260, transition conveyor adjustment frame; 261, fourth hydraulic rod; 262, fifth hydraulic rod;

[0053] 300, telescopic conveyor; 310, earthwork receiving frame; 311, second follower rotating member; 312, earthwork receiving conveyor belt; 320, outer conveyor frame; 321, third active rotating member; 330, inner conveyor frame; 331, rack; 340, telescopic conveyor belt; 341, upper conveying section; 342, lower conveyor belt; 350, rotating shaft; 351, gear; 352, hydraulic motor; 353, fixed plate; 360, transition conveyor belt of telescopic conveyor; 370, adjustment frame of telescopic conveyor; 371, sixth hydraulic rod; 372, seventh hydraulic rod;

[0054] 400, counterweight mechanism; 410, fixed frame; 420, rotating frame; 430, fourth active rotating member; 440, counterweight block. DETAILED DESCRIPTION

[0055] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0056] like Figure 1-9 As shown, the present invention provides a multi-stage vehicle system integrating the functions of digging and continuously delivering soil, comprising:

[0057] The excavator 100 has a rotary excavating head 110 and an excavator conveying mechanism, and the rotary excavating head 110 is connected to the excavator conveying mechanism;

[0058] The transition transport vehicle 200 has a first machine transport mechanism 210 and a second machine transport mechanism 220 at its front and rear ends respectively;

[0059] A telescopic transport vehicle 300, which has an earthwork receiving structure and a telescopic transport mechanism and is used for earthwork transport and unloading;

[0060] The excavator conveying mechanism, the first machine conveying mechanism 210, the second machine conveying mechanism 220, the earth receiving mechanism, and the telescopic conveying mechanism are connected in sequence. The excavator 100 delivers the excavated earth into the excavator conveying mechanism through the rotating digging head 110, and then transports it to the designated unloading point for unloading through the first machine conveying mechanism 210, the second machine conveying mechanism 220, and the telescopic conveying mechanism in sequence.

[0061] It should be noted that in the prior art, since the excavator 100 performs excavation work alone and the transportation of earth needs to be carried out by a separate transport vehicle, in the actual construction process, when the excavator 100 is excavating at the construction site, a loading point will be set up near the construction site, and the excavated earth will be uniformly placed at the loading point, waiting for the transport vehicle to transport it. However, since the excavation range of the construction site is large, when the excavator 100 is excavating at a location far away from the loading point at the construction site, another excavator 100 is required to transport the earth excavated by the first excavator 100 to the loading point, and then the transport vehicle can transport the earth at the loading point to the outside, which leads to low overall efficiency.

[0062] In addition, multiple transporters also need to be arranged for back and forth transportation. Due to the narrow space on the construction site, when multiple transporters are involved in earth transportation at the same time, traffic congestion is easily caused due to the limited space on site, forcing the excavator to suspend operations and wait for the transporters to complete loading and leave. This shutdown phenomenon seriously affects the overall construction progress and further reduces work efficiency.

[0063] In comparison, in the present embodiment, the excavator 100, the transition transport vehicle 200, and the telescopic transport vehicle 300 form a vehicle system that integrates earth excavation, transportation, and unloading. Therefore, there is no need to arrange a transporter to carry out the earth transportation work at the construction site, so that only the excavator 100 is used for excavation work at the entire excavation site. Therefore, the time waste and inefficiency caused by the single transporter entering and exiting the construction site in traditional construction are avoided, and there is no need to arrange another excavator 100 to transport the earth to the loading point at the construction site, which greatly improves the overall construction efficiency (about 4-5 times).

[0064] Specifically, Figure 2 As shown, the description of the excavator 100 is as follows:

[0065] Preferably, the excavator 100 comprises:

[0066] A support frame 120 disposed at the front end of the excavator 100;

[0067] The driving arm assembly consists of a rotating arm 130 and a first hydraulic rod 140. The rotary excavator head 110 is connected to the rotating arm 130. The rotating arm 130 and the first hydraulic rod 140 are hinged to form a first rotating joint. The first hydraulic rod 140 and the supporting frame 120 are hinged to form a second rotating joint.

[0068] This double-joint structure design gives the drive arm assembly a larger range of motion, especially the extension capability in the vertical direction has been greatly enhanced, which can achieve effective excavation in deeper locations. This is especially important for projects that require deep excavation, such as basements and subway stations. During the actual excavation process, the excavation depth of the rotary excavator head 110 can reach 20 meters. On the other hand, it also improves the flexibility of the machine operation and more accurately controls the position and posture of the rotary excavator head 110.

[0069] Preferably, the excavator conveying mechanism comprises:

[0070] A first excavator conveyor belt 150 , which is disposed on the rotating arm 130 and is located at the head of the excavator 100 ;

[0071] The front conveying frame of the excavator and the front conveying belt 160 of the excavator, the front conveying frame of the excavator is arranged at the bottom of the support frame 120, and the front conveying belt 160 of the excavator is arranged in the front conveying frame of the excavator;

[0072] The excavator rear conveying frame and the excavator rear conveying belt 170, the excavator rear conveying frame is arranged at the rear of the excavator 100, and the excavator rear conveying belt 170 is arranged in the excavator rear conveying frame;

[0073] The excavator transition conveying frame and the excavator transition conveying belt 180, the excavator transition conveying frame is arranged on the excavator 100, and the excavator transition conveying belt 180 is arranged in the excavator transition conveying frame, wherein,

[0074] The feed end of the excavator transition conveyor belt 180 is located at the bottom of the excavator front conveyor belt 160 , and the discharge end of the excavator transition conveyor belt 180 is located at the top of the excavator rear conveyor belt 170 .

[0075] In the actual working process, the transportation process of earth on the excavator 100 is as follows:

[0076] 1. Initial transportation of earth: When the rotary excavator head 110 completes excavation and lifts the earth, the earth will automatically fall onto the first excavator conveyor belt 150. As the first excavator conveyor belt 150 moves, the earth is further transported to the excavator front conveyor belt 160;

[0077] 2. Earthwork transition and lifting: The front conveyor belt 160 of the excavator delivers the earthwork to its end, and then the earthwork naturally falls to the feeding end of the transition conveyor belt 180 of the excavator. Since the middle conveyor belt is inclined, it can effectively lift the earthwork upward and overcome the height difference, ensuring that the earthwork smoothly reaches the higher rear conveyor belt 170 of the excavator;

[0078] 3. Final transportation and unloading of earth: After being lifted by the transition conveyor belt 180 of the excavator, the earth reaches the top of the rear conveyor belt 170 of the excavator, and then is transported outward through the rear conveyor belt 170 of the excavator, and is finally unloaded onto the transition conveyor vehicle 200.

[0079] Among them, a number of baffle plates 151 are arranged at intervals on the first excavator conveyor belt 150. The arrangement of the baffle plates 151 ensures that no matter what angle the rotating arm 130 is in, the earth can be transported along the first conveyor belt without falling.

[0080] Preferably, a first active rotating member 191 is provided at the bottom of the rear conveying frame of the excavator, and the first active rotating member 191 is driven by a motor to rotate, thereby driving the rear conveying frame of the excavator to rotate. In other words, the provision of the first active rotating member 191 allows the rear conveyor belt 170 of the excavator to adjust its direction according to actual needs, while the excavator 100 itself does not need to rotate or move, thereby better adapting to the layout of different construction sites.

[0081] Preferably, a rotary track 111 is provided on the surface of the rotary excavator head 110, and a plurality of digging plates 112 are arranged at intervals on the rotary track 111. The outer edge of the digging plate 112 is arranged in a tooth-shaped structure. The tooth-shaped digging plate 112 can cut into the ground more easily during the rotation of the rotary track 111, thereby reducing the excavation resistance and improving the excavation efficiency. The excavated soil is also lifted upward along the rotary track 111 by the digging plate 112 until it finally falls into the first excavator conveyor belt 150.

[0082] Among them, a baffle 113 is also provided at the front end of the rotary excavator head 110. The setting of the baffle 113 prevents the earth from falling and ensures that the rotary excavator head 110 can smoothly lift the excavated earth upwards. The lower edge of the baffle 113 is set to an arc surface and bends toward the direction of the rotary excavator head 110. Such a design helps to guide the flow path of the earth.

[0083] In addition, the excavator 100 is also equipped with a real-time depth monitoring system, which is described as follows:

[0084] 1. System composition

[0085] Distance measuring sensor: installed on the rotary excavating head 110, used for accurately measuring the distance between the rotary excavating head 110 and the ground or other reference objects.

[0086] Data transmission module: responsible for transmitting the data collected by the ranging sensor to the receiver on the vehicle body wirelessly or by wire.

[0087] Receiver: Located inside the vehicle, it receives data from the ranging sensor and converts it into visual depth information through an internal processing unit.

[0088] Display screen: It is set in the control room and is used to display the current depth of the rotary excavator 110 and other relevant information in real time.

[0089] 2. Distance sensor layout

[0090] Multi-point distance measurement: multiple distance measurement sensors (e.g., 3 or more) are arranged on the rotary excavator head 110, distributed at different positions, to ensure that the depth at different angles can be accurately measured. These sensors can be ultrasonic sensors, laser rangefinders, or infrared rangefinders, etc., and the specific selection depends on the application scenario and accuracy requirements.

[0091] 3. Data processing and transmission

[0092] Signal processing: Each ranging sensor is equipped with its own microprocessor for preliminary processing of the raw ranging data, such as filtering, calibration, etc.

[0093] Wireless / wired communication: Send the processed data to the receiver in the vehicle body via wireless (such as Wi-Fi, Bluetooth, Zigbee) or wired (such as CAN bus, Ethernet). Choose the appropriate communication protocol to ensure the stability and real-time performance of data transmission.

[0094] 4. Receiving and displaying

[0095] Receiving and decoding: After receiving the distance measurement data, the receiver in the vehicle body decodes and further processes it to calculate the specific depth of the rotary excavator 110.

[0096] Visual interface: On the screen of the control room, the depth information of the rotary excavator head 110 is presented in an intuitive manner. Digital display, graphic representation (such as analog instrument panel), color coding and other forms can be used to help the operator quickly understand the current working status.

[0097] Workflow

[0098] Initialization: After powering on, all distance measuring sensors perform self-checks to confirm that they are in good working condition; at the same time, the control room screen is initialized and ready to receive and display depth information.

[0099] Real-time monitoring: When the rotary excavator 110 starts working, each distance measuring sensor continuously collects depth data and sends it to the receiver through the data transmission module. The receiver processes the received data and updates the depth information displayed on the screen of the control room in real time.

[0100] Feedback control: The operator adjusts the digging action based on the depth information displayed on the screen to ensure that the operation meets the design requirements.

[0101] This real-time depth monitoring system significantly improves the operational accuracy and safety of the excavator 100, especially in underground space excavation projects, such as the construction of basements, subway stations and other construction projects. Accurate depth monitoring can help avoid problems such as over-excavation or under-excavation, ensuring project quality while reducing repair costs.

[0102] like Figure 3-5 As shown, the description of the transition transport vehicle 200 is as follows:

[0103] The transition transport vehicle 200 is used to construct a transition bridge between the excavator 100 and the telescopic transport vehicle 300, which includes a first machine conveying mechanism 210, a machine transition conveyor belt 230 and a second machine conveying mechanism 220. The earth transported by the excavator 100 passes through the first machine conveying mechanism 210, the machine transition conveyor belt 230 and the second machine conveying mechanism 220 in sequence, and is smoothly transported to the telescopic transport vehicle 300, and finally the earth is transported to a designated unloading point for unloading by the telescopic transport vehicle 300.

[0104] Preferably, the first machine conveying mechanism 210 and the second machine conveying mechanism 220 are both configured as multi-section conveyor belt assemblies. The single-section conveyor belt assembly includes a machine conveying frame 240 and a machine conveyor belt 250. The machine conveyor belt 250 is arranged in the machine conveying frame 240. The purpose of transporting earth is achieved through the continuous operation of the machine conveyor belt 250.

[0105] Among them, two adjacent machine conveying frames 240 are butted end to end, and a first follower rotating member 241 is provided at the connection between the two. The setting of the first follower rotating member 241 allows the adjacent conveying sections to rotate relative to each other, and a second active rotating member 242 is provided between the transition conveying vehicle 200 and the machine conveying frame 240. The second active rotating member 242 is driven by a motor to rotate, which can drive the machine conveying frame 240 to rotate, thereby improving the flexibility during adjustment;

[0106] Thus, during the excavation process of the external excavator 100, the transition transport vehicle 200 can move freely within a range with the excavator 100 as the center and the first machine transport mechanism 210 as the radius;

[0107] At the same time, the telescopic transport vehicle 300 can also move freely within a range with the transition transport vehicle 200 as the center and the second machine transport mechanism 220 as the radius.

[0108] This design allows the entire conveying system to move freely within a larger range while working, dynamically adjust its posture to adapt to the ever-changing working environment, expand its effective working area, and greatly improve the flexibility of the entire conveying system.

[0109] Preferably, the machine transition conveyor belt 230 is arranged at an angle, with its feed end located at the bottom of the first machine conveying mechanism 210 and its discharge end located at the top of the second machine conveying mechanism 220. The machine transition conveyor belt 230 is used for transitional conveyance of earth between the first machine conveying mechanism 210 and the second machine conveying mechanism 220.

[0110] It is worth mentioning that in the first machine conveying mechanism 210, the height of each section of the machine conveyor belt 250 decreases step by step from far to near, and in the second machine conveying mechanism 220, the height of each section of the machine conveyor belt 250 decreases step by step from near to far. This design of gradually decreasing height allows the earthwork to be transported smoothly, maintains the continuity of material transmission, and avoids interruption of intermediate links.

[0111] It should also be noted that since the rear conveyor belt 170 of the excavator can adjust its conveying direction through the first active rotating member 191, and each machine conveyor belt 250 is automatically adjusted through the first follower rotating member 241, that is, the first active rotating member 191 is responsible for adjusting the overall angle, and the first follower rotating member 241 allows relative rotation between each section of the machine conveying frame 240, the two work together to improve the flexibility of the entire vehicle system when adjusting the position.

[0112] like Figure 6-9 As shown, the description of the telescopic transport vehicle 300 is as follows:

[0113] Preferably, the earthwork receiving mechanism comprises:

[0114] There is at least one earthwork receiving frame 310 and it is used to connect with the telescopic transport vehicle 300 . A second follower rotating member 311 is provided between adjacent earthwork receiving frames 300 , and an earthwork receiving conveyor belt 312 is provided on the earthwork receiving frame 300 .

[0115] Preferably, the telescopic conveying mechanism comprises:

[0116] An outer conveying frame 320, an inner conveying frame 330 and a telescopic conveyor belt 340, wherein the outer conveying frame 320 is rotatably connected to the telescopic conveying vehicle 300 via a third active rotating member 321, the inner conveying frame 330 is axially movable in the outer conveying frame 320, and the telescopic conveyor belt 340 is located in the outer conveying frame 320 and the inner conveying frame 330;

[0117] That is, by moving the axis of the inner conveying frame 330, the effective conveying length of the telescopic conveyor belt 340 can be dynamically adjusted. This means that when the conveying distance needs to be increased or decreased, the working length of the conveyor belt can be easily adjusted by simply stretching or contracting the conveying frame accordingly, without the need to re-lay or disassemble the conveyor belt. This expands the unloading range of the telescopic conveyor vehicle 300, and it can transport to the designated unloading point within a certain range, reducing intermediate transfer links and time costs, and significantly improving the efficiency of earthwork handling.

[0118] Through the design of the telescopic conveying mechanism, the effective length of the conveyor belt can be flexibly adjusted according to the actual working conditions. It is suitable for earthwork handling tasks of various distances, especially for the needs of long-distance unloading in underground space excavation projects such as basements, parking lots, and subway stations. It provides an effective solution.

[0119] Preferably, the design of the telescopic structure is as follows:

[0120] A rack 331 is provided on the surface of the inner conveying frame 330 , and the rack 331 is arranged along the axial direction of the inner conveying frame 330 ;

[0121] A rotating shaft 350 and a gear 351 are provided on the outer conveying frame 320. The gear 351 is arranged on the rotating shaft 350 and meshes with the rack 331. The rotating shaft 350 is driven to rotate by the hydraulic motor 352 to drive the gear 351 to rotate, thereby finally realizing the movement of the inner conveying frame 330. This transmission mechanism is compactly and efficiently designed to ensure the directness and response speed of power transmission.

[0122] It is worth mentioning that the transmission system driven by the hydraulic motor 352 provides efficient and fast power transmission, so that the inner conveying frame 330 can complete the telescopic action in a short time, thereby improving work efficiency. The matching design of the rack 331 and the gear 351, and the precise power transmission provided by the hydraulic motor 352 ensure the movement accuracy of the inner conveying frame 330 and realize accurate adjustment of the conveyor belt length.

[0123] Preferably, it also includes fixed plates 353 arranged on both sides of the outer conveying frame 320, and both ends of the rotating shaft 350 are installed on the fixed plates 353 through bearing assemblies. The setting of the fixed plates 353 ensures that the rotating shaft 350 always rotates at a fixed position, that is, the gear 351 always rotates in place, thereby driving the inner conveying frame 330 to move, and the high-precision bearing assembly ensures the rotation accuracy of the rotating shaft 350, so that the meshing between the gear 351 and the rack 331 is tighter and smoother, avoiding the problem of inaccurate movement of the inner conveying frame 330 due to transmission errors, and realizing precise adjustment of the conveyor belt length. At the same time, it also reduces friction and wear between mechanical parts, reduces the need for daily maintenance, extends the service life of the equipment, and reduces the cost of long-term use.

[0124] This stable transmission system reduces potential safety hazards caused by mechanical failures and ensures the stability and reliability of the entire conveying frame during adjustment and extension.

[0125] Preferably, the outer conveying frame 320 has an upper space and a lower space, and the inner conveying frame 330 is located in the lower space, that is, the inner conveying frame 330 always moves in the lower space of the outer conveying frame 320 without affecting the layout of the upper space.

[0126] Furthermore, the telescopic conveyor belt 340 includes an upper conveying section 341 and a lower conveying section 332. The upper conveying section 341 is located in the upper space, and the lower conveying section 332 is located in the inner conveying frame 330. With the axial movement of the inner conveying frame 330, the effective conveying length of the lower conveying section 332 is adjusted to adapt to the unloading requirements of different distances.

[0127] That is to say, the upper conveying section 341 of the telescopic conveyor belt 340 is located in the upper space of the outer conveying frame 320, and the lower conveying section 332 of the telescopic conveyor belt 340 is located in the lower space of the outer conveying frame 320. In the actual feeding process, the earth is first transported along the upper telescopic conveyor belt 340, and then automatically falls onto the lower telescopic conveyor belt 340 for transportation. Therefore, after adjusting the effective conveying length of the lower telescopic conveyor belt 340, it is only necessary to transport the earth to the upper telescopic conveyor belt 340 to automatically complete the work of feeding and unloading to the designated unloading point.

[0128] Preferably, the telescopic conveyor 300 is provided with a telescopic conveyor transition conveyor belt 360 , which is tilted, with its feed end located at the bottom of the earthwork conveying frame 310 and its discharge end located at the top of the outer conveying frame 320 .

[0129] In addition, it should be noted that the excavator 100, the transition transport vehicle 200, and the telescopic transport vehicle 300 are all equipped with a counterweight mechanism 400, which includes a fixed frame 410, a rotating frame 420, and a driving motor (not shown in the figure). One end of the rotating frame 420 is connected to the fixed frame 410 through a fourth active rotating member 430, and a counterweight block 440 is provided at the other end of the rotating frame 420. The fourth active rotating member 430 is driven to rotate by the driving motor, thereby driving the rotating frame 420 to rotate.

[0130] The setting of the counterweight mechanism 400 can be dynamically adjusted according to the actual working conditions to ensure that the center of gravity is always in a good position during the operation of the vehicle and to prevent tilting or instability caused by material transmission. Especially when operating on uneven ground or under high load conditions, the counterweight mechanism 400 can effectively offset the influence of external torque and improve the stability and safety of the entire system.

[0131] Preferably, the excavator 100, the transition transport vehicle 200, and the telescopic transport vehicle 300 are all provided with a gyroscope (not shown in the figure) in the direction of their center of gravity. The gyroscope monitors the inclination angle and rotation rate of the vehicle body relative to the horizontal plane in real time and transmits them to the control system. The control system automatically controls the operation of the drive motor to adjust the position of the counterweight block 440.

[0132] Through real-time monitoring by the gyroscope, the control system can accurately grasp the tilt and rotation of the vehicle body, thereby achieving fine-tuning of the position of the counterweight block 440 to ensure that the vehicle can maintain optimal balance under various working conditions. The automated control system reduces dependence on operators, reduces the possibility of human operational errors, and reduces the workload of operators, which not only ensures the smooth transportation of earth, but also ensures the safety of operators and construction sites.

[0133] In order to ensure that the excavator 100, the transition transport vehicle 200, and the telescopic transport vehicle 300 can be smoothly docked under different terrains, the excavator rear transport frame, the platform transport frame 240, the earthwork receiving frame 310, and the outer transport frame 320 are all configured to be able to rotate up and down. Specifically:

[0134] The excavator 100 is provided with an excavator adjusting frame 190, and the excavator rear transport frame is connected to the excavator adjusting frame 190 via a first active rotating member 191. The other end of the excavator adjusting frame 190 is hinged to the vehicle body. At the same time, the excavator 100 is also provided with a second hydraulic rod 192, and the telescopic end of the second hydraulic rod 192 is connected to the excavator adjusting frame 190. As the telescopic end of the second hydraulic rod 192 is lifted, the connecting end of the excavator adjusting frame 190 and the rear transport frame of the excavator can be driven to rotate upward, thereby adjusting the height of the rear transport frame of the excavator.

[0135] At the same time, a third hydraulic rod 193 is provided between the support frame 120 of the excavator 100 and the excavator adjustment frame 190, and the support frame 120 is hinged to the excavator adjustment frame 190. With the movement of the third hydraulic rod 193, the support frame 120 is pushed to rotate, and the position of the rotary excavating head 110 is further adjusted.

[0136] Similarly, the transition transport vehicle 200 is provided with a transition transport vehicle adjustment frame 260, and is also equipped with a fourth hydraulic rod 261 and a fifth hydraulic rod 262. The telescopic end of the fourth hydraulic rod 261 is connected to the second machine conveying mechanism 220, and the telescopic end of the fifth hydraulic rod 262 is connected to the first machine conveying mechanism 210, which are used to adjust the height of the first machine conveying mechanism 210 and the second machine conveying mechanism 220 respectively.

[0137] Similarly, the telescopic transport vehicle 300 is provided with a telescopic transport vehicle adjustment frame 370, and is also equipped with a sixth hydraulic rod 371 and a seventh hydraulic rod 372. The telescopic end of the sixth hydraulic rod 371 is connected to the outer transport frame 320, and the telescopic end of the seventh hydraulic rod 372 is connected to the earthwork receiving frame 310, which are used to adjust the height of the outer transport frame 320 and the earthwork receiving frame 310 respectively.

[0138] In addition to facilitating smooth docking between the excavator 100, the transition transport vehicle 200, and the telescopic transport vehicle 300 under various terrain conditions, in actual working conditions, the transport height of the telescopic transport vehicle 300 can reach 15 meters.

[0139] It should also be noted that the excavator 100, the transition transport vehicle 200, and the telescopic transport vehicle 300 are all equipped with engines and electric motors. When the vehicles are on the way to the construction site, the engines are used as the power system. After arriving at the construction site, the electric motors can be used as the power system to save costs.

[0140] In addition, the vehicle system provided in this embodiment can be used not only for excavating and transporting earth (mud, sand, and stone), but also for transporting concrete, and has a wider range of applications.

[0141] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical schemes composed of any combination of the above technical features. The above is a specific implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

[0142] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0143] In addition, in the present invention, descriptions such as ",","one", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined with "," may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0144] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0145] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A multi-stage vehicle system integrating the functions of digging and continuous soil delivery, characterized in that: include: An excavator, comprising a rotary excavator head and an excavator conveying mechanism, wherein the rotary excavator head is docked with the excavator conveying mechanism; The transition transport vehicle has a first machine transport mechanism and a second machine transport mechanism at its front and rear ends respectively; A telescopic transport vehicle, which has an earthwork receiving mechanism and a telescopic transport mechanism and is used for earthwork transport and unloading; The excavator conveying mechanism, the first machine conveying mechanism, the second machine conveying mechanism, the earth receiving mechanism, and the telescopic conveying mechanism are connected in sequence, so that the excavator, the transition conveying vehicle, and the telescopic conveying vehicle form a vehicle system integrating earth excavation, conveying, and unloading.

2. A multi-stage vehicle system with integrated earth-digging and continuous earth-delivery functions according to claim 1, characterized in that: The excavator comprises: A support frame, which is arranged at the front end of the excavator; The rotating arm and the first hydraulic rod, the rotary excavator head is connected to the rotating arm, the rotating arm and the first hydraulic rod are hinged to form a first rotating joint, and the first hydraulic rod and the supporting frame are hinged to form a second rotating joint.

3. A multi-stage vehicle system integrating the functions of digging and continuously delivering soil according to claim 2, characterized in that: The excavator conveying mechanism comprises: a first excavator conveyor belt, which is disposed on the rotating arm and located at the head of the excavator; A front conveying frame of the excavator and a front conveying belt of the excavator, wherein the front conveying frame of the excavator is arranged at the bottom of the support frame, and the front conveying belt of the excavator is arranged in the front conveying frame of the excavator; A rear conveying frame of an excavator and a rear conveying belt of the excavator, wherein the rear conveying frame of the excavator is arranged at the rear of the excavator, and the rear conveying belt of the excavator is arranged in the rear conveying frame of the excavator; A transition conveying frame of an excavator and a transition conveying belt of an excavator, wherein the transition conveying frame of the excavator is arranged on the excavator, and the transition conveying belt of the excavator is arranged in the transition conveying frame of the excavator, wherein: The feed end of the excavator transition conveyor belt is located at the bottom of the excavator front conveyor belt, and the discharge end of the excavator transition conveyor belt is located at the top of the excavator rear conveyor belt.

4. The multi-stage vehicle system with integrated earth-digging and continuous earth-delivery functions according to claim 3, characterized in that: A first active rotating member is provided at the bottom of the rear conveying frame of the excavator. The first active rotating member is driven to rotate by a motor, thereby driving the rear conveying frame of the excavator to rotate.

5. The multi-stage vehicle system with integrated earth-digging and continuous earth-delivery functions according to claim 1, characterized in that: The first machine conveying mechanism and the second machine conveying mechanism are both configured as multi-segment conveyor belt assemblies. The single-segment conveyor belt assembly includes a machine conveying frame and a machine conveyor belt. The machine conveyor belt is disposed in the machine conveying frame.

6. A multi-stage vehicle system integrating the functions of digging and continuously delivering soil according to claim 5, characterized in that: The transition conveyor vehicle is also provided with a machine transition conveyor belt, which is inclined, with its feed end located at the bottom of the first machine conveying mechanism and its discharge end located at the top of the second machine conveying mechanism.

7. The multi-stage vehicle system with integrated earth-digging and continuous earth-delivery functions according to claim 5, characterized in that: Two adjacent machine conveying frames are butted end to end and are provided with a first follower rotating member, and a second active rotating member is provided between the transition conveying vehicle and the machine conveying frame.

8. The multi-stage vehicle system with integrated earth-digging and continuous earth-delivery functions according to claim 1, characterized in that: The earthwork receiving mechanism comprises: An earthwork receiving frame, at least one of which is used to connect with the telescopic transport vehicle, and a second follower rotating member is provided between adjacent earthwork receiving frames; The earthwork receiving frame is provided with an earthwork receiving conveyor belt.

9. The multi-stage vehicle system with integrated earth-digging and continuous earth-delivery functions according to claim 8, characterized in that: The telescopic conveying mechanism comprises: An outer conveying frame, an inner conveying frame and a telescopic conveyor belt, wherein the outer conveying frame is rotatably connected to the telescopic conveying vehicle via a third active rotating member, the inner conveying frame is axially movable in the outer conveying frame, and the telescopic conveyor belt is located in the outer conveying frame and the inner conveying frame; The telescopic conveyor vehicle is also provided with a telescopic conveyor vehicle transition conveyor belt, which is inclined, with its feed end located at the bottom of the earthwork receiving frame and its discharge end located at the top of the outer conveying frame.

10. A multi-stage vehicle system with integrated earth-digging and continuous earth-delivery functions according to claim 9, characterized in that: A rack is provided on the surface of the inner conveying frame, and the rack is arranged along the axial direction of the inner conveying frame; The outer conveying frame is provided with a rotating shaft and a gear. The gear is arranged on the rotating shaft and meshes with the rack. The rotating shaft is driven to rotate by a hydraulic motor to drive the gear to rotate. As the inner conveying frame moves, the effective conveying length of the telescopic conveyor belt is dynamically adjusted.

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