A rollover dump truck drive structure and mounting apparatus thereof

Abstract

The application discloses a side-turning self-unloading vehicle driving structure and mounting equipment and belongs to the technical field of self-unloading vehicles. The device comprises a self-unloading vehicle body, two hoppers are mounted on the self-unloading vehicle body, the lower side of the hopper is provided with a driving mechanism for driving the hopper to overturn, the driving mechanism is two groups of hydraulic cylinders, the two groups of hydraulic cylinders are arranged below the two hoppers, and the fixed ends of the hydraulic cylinders are hinged to a vehicle frame. In the application, two groups of independent hoppers are arranged on the self-unloading vehicle body in left-right symmetry, and a hydraulic cylinder is matched for each group of hoppers to drive independently, so that the two hoppers can be stably driven to complete the overturning and unloading action simultaneously to the two sides of the vehicle body. Relying on the characteristics of stable driving operation and continuous power output of the hydraulic cylinder, the overturning process of the hopper can be effectively ensured to be smooth and smooth, and the action has high reliability. Through the synchronous unloading operation mode of the double-side hoppers, the double-side synchronous paving operation of bulk materials can be realized, the overall unloading operation efficiency is effectively improved, and the application range of the equipment is wider.

Description

Technical Field

[0001] This invention relates to the field of dump truck technology, specifically to a side-tipping dump truck drive structure and its installation equipment. Background Technology

[0002] Dump trucks, also known as tipper trucks, are freight vehicles with automatic unloading capabilities, widely used in engineering construction, sand and gravel transportation, and slag removal. The core of this vehicle relies on a hydraulic lifting system to tilt the cargo box for unloading. It is easy to operate and has high unloading efficiency. Common types include rear-tipping and side-tipping dump trucks. Side-tipping dump trucks can tilt to the left and right sides of the vehicle for unloading, suitable for narrow spaces and flat, loose material operations. The cargo box installation structure, the core installation equipment, includes a lifting bracket, fixed hinges, side-tipping limit pins, locking buckles, and side support components. The bracket connects the cargo box to the chassis, the hinges control the side-tipping angle, and the limit pins and buckles secure the cargo box, ensuring driving and unloading safety. Unloading requires no manual handling, significantly reducing labor intensity and improving material transfer efficiency.

[0003] In the existing technology field, the body structure of dump trucks usually adopts a single truck bed design. This type of truck bed can realize the function of tipping and unloading. Its tipping method is mainly divided into two categories: one is unidirectional side tipping, which includes two independent operation modes: left side tipping and right side tipping; the other is bidirectional side tipping, which can flexibly choose to tip to the left or right according to the operation requirements, adapting to the unloading needs of different sites.

[0004] However, the above-mentioned dump trucks still have the following defects: regardless of whether they adopt a one-way or two-way side-tipping design, they cannot achieve simultaneous side-tipping and unloading in both directions, which limits the unloading efficiency and makes them difficult to adapt to special operation scenarios such as those that require rapid flattening of bulk materials. Summary of the Invention

[0005] The purpose of this invention is to provide a drive structure for a side-tipping dump truck and its installation equipment to solve the problem that dump trucks in the prior art cannot unload materials synchronously in both directions.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solution: a side-tipping dump truck drive structure and its installation equipment, comprising: a dump truck body, wherein two truck beds are installed on the dump truck body; The lower side of the truck bed is provided with a drive mechanism for driving the truck bed to tilt. The drive mechanism consists of two sets of hydraulic cylinders, which are respectively located below the two truck beds. The fixed end of the hydraulic cylinder is hinged to the frame, and the movable end of the hydraulic cylinder is hinged to the bottom of the truck bed. The hydraulic cylinder is used to push the two truck beds upward at the same time, so that the two truck beds tilt to the sides respectively.

[0007] Preferably, the drive mechanism is replaced by a tilting mechanism, which includes a mounting plate on which two drive shafts are rotatably mounted. A driven wheel is fixedly mounted on each of the two drive shafts, and an upper lifting assembly is mounted on each of the two drive shafts. A drive assembly is provided on the lower side of the two driven wheels. The drive assembly drives the two driven wheels to rotate in opposite directions, thereby causing the upper lifting assembly to push the two carts upward and tilt them synchronously in opposite directions.

[0008] Preferably, the upper assembly includes a transverse connecting rod, which is fixedly sleeved on the drive shaft. A vertical connecting rod is rotatably mounted on the end of the transverse connecting rod away from the drive shaft. A limiting block is sleeved on the surface of the vertical connecting rod, and the other end of the limiting block is rotatably mounted on the mounting plate.

[0009] Preferably, the upper assembly further includes a slide groove, and a slider is hinged to the end of the vertical link away from the horizontal link, the slider being slidably mounted inside the slide groove.

[0010] Preferably, the drive assembly includes two drive wheels and a servo motor, the two drive wheels meshing with each other, and the output end of the servo motor being fixedly connected to one of the drive wheels.

[0011] Preferably, the mounting plate is further equipped with a disengagement mechanism, which includes a connecting plate, a cylinder, and two limiting rings. The cylinder is fixedly mounted on the side of the mounting plate near the driven wheel, and the connecting plate is rotatably mounted on the side of the driven wheel near the mounting plate. The output end of the cylinder is fixedly connected to the connecting plate, and the two limiting rings are both sleeved on the drive shaft. The connecting plate and the driven wheel are positioned between the two limiting rings.

[0012] Preferably, a scraping mechanism is provided on each of the two opposing sides of the cart. The scraping mechanism includes an inner side plate rotatably mounted on the cart, and a telescopic scraper is slidably mounted inside the inner side plate.

[0013] Preferably, the inner side plate has multiple upper receiving grooves, and the telescopic scraper has a lower receiving groove at a position opposite to the upper receiving grooves. A spring is installed inside both the upper and lower receiving grooves, and the two ends of the spring are respectively fixed inside the upper and lower receiving grooves.

[0014] Preferably, doors are rotatably installed on the opposite sides of the two truck beds, and the truck beds and doors are fixed by locking hooks.

[0015] Preferably, the vehicle includes a frame, which is located at the rear of the dump truck body. The frame has hinge plates on both sides, and the two truck beds have hinge shafts on the lower ends near the hinge plates. The hinge shafts are rotatably mounted inside the hinge plates.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: 1. In this invention, by setting two sets of independent symmetrical buckets on the left and right sides of the dump truck body, and equipping each set of buckets with a hydraulic cylinder for independent drive, the two buckets can be stably driven to simultaneously complete the tipping and unloading action to both sides of the truck body. Relying on the characteristics of smooth operation and continuous power output of hydraulic cylinder drive, the tipping process of the buckets can be effectively guaranteed to be smooth and stable, and the operation is highly reliable. Through the operation mode of simultaneous unloading of the buckets on both sides, the simultaneous flat laying of bulk materials on both sides can be realized, which can effectively improve the overall unloading operation efficiency. It can be well adapted to various complex working conditions such as construction in narrow spaces and rapid material laying, and the equipment has a wider range of applications.

[0017] 2. In this invention, two sets of truck beds are set on the body of the dump truck, and the mounting plate of the tipping mechanism is used as the mounting base. At the same time, two drive shafts, driven wheels and top components are symmetrically arranged. The drive mechanism outputs power to drive the two sets of driven wheels to rotate in opposite directions, which drives the drive shafts and top components to operate synchronously. This pushes the two sets of truck beds to tilt in opposite directions to the left and right sides of the vehicle body. This structure can complete the double-sided bulk material laying operation at the same time, improve the unloading efficiency, and can be adapted to various complex working conditions such as narrow space and rapid material laying.

[0018] 3. In this invention, a cylinder is used to push the driven wheel on one side, causing the driven wheel to disengage from the driving wheel on the other side, thus cutting off the power transmission on one side and enabling independent unloading of a single bucket. The limiting ring effectively restricts the axial movement of components, ensuring the engagement and disengagement accuracy of the equipment. The overall structure is adaptable to various working conditions, with stable operation and enhanced versatility and practicality.

[0019] 4. In this invention, by installing a telescopic scraper at the lower end of the inner side plate, the telescopic scraper can adaptively extend and retract with the rotation of the inner side plate. During the operation, it can always fit the bottom surface of the truck bed without gaps, and can thoroughly scrape and clean the residual materials adhering to and retained on the inner wall of the truck bed. It can cooperate with the rotation of the inner side plate to complete the automated material cleaning operation, effectively solving the technical problems of material residue and incomplete unloading after the truck bed is tipped over for unloading, and eliminating the need for manual secondary cleaning operations. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a side-tipping dump truck drive structure and its installation equipment provided by the present invention; Figure 2 This is a schematic diagram of the overall structure of the side-tipping dump truck drive structure and its installation equipment provided by the present invention from another perspective. Figure 3 This is a schematic diagram of the side-tipping dump truck drive structure and its installation equipment, and the truck bed reversing structure provided by the present invention. Figure 4This is a schematic diagram of the frame structure in the side-tipping dump truck drive structure and its installation equipment provided by the present invention; Figure 5 This is a schematic diagram of the chute structure in the drive structure and installation equipment of a side-tipping dump truck provided by the present invention; Figure 6 This invention provides a side-tipping dump truck drive structure and its installation equipment. Figure 5 Enlarged schematic diagram of the structure at point A in the middle; Figure 7 This is a schematic diagram of the reversing mechanism in the drive structure and installation equipment of a side-tipping dump truck provided by the present invention. Figure 8 This is a schematic diagram of the disengagement mechanism in the drive structure and installation equipment of a side-tipping dump truck provided by the present invention. Figure 9 This is a schematic diagram of the swinging of the inner side plate of a side-tipping dump truck drive structure and its installation equipment provided by the present invention; Figure 10 This is a schematic diagram of the side section structure of the truck bed in the side-tipping dump truck drive structure and its installation equipment provided by the present invention.

[0021] Explanation of reference numerals in the attached figures: 1. Dump truck body; 11. Frame; 12. Articulated plate; 2. Cargo bed; 21. Cargo door; 22. Lock hook; 23. Hinge shaft; 3. Tilting mechanism; 31. Mounting plate; 32. Drive shaft; 33. Driven wheel; 34. Horizontal connecting rod; 35. Vertical connecting rod; 36. Limit block; 37. Slider; 38. Slide groove; 4. Drive components; 41. Drive wheel; 42. Servo motor; 5. Disengagement mechanism; 51. Connecting plate; 52. Cylinder; 53. Limiting ring; 6. Scraping mechanism; 61. Inner side plate; 611. Upper receiving groove; 62. Telescopic scraper; 622. Lower receiving groove; 63. Spring. Detailed Implementation

[0022] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0023] Example 1 Existing dump trucks, whether designed for one-way or two-way side-tipping, cannot achieve simultaneous side-tipping and unloading in both directions, resulting in limited unloading efficiency and making them unsuitable for special operating scenarios requiring rapid flattening of bulk materials.

[0024] like Figures 1 to 10 In this embodiment, there is a dump truck body 1, and two truck beds 2 are installed on the dump truck body 1; The lower side of the truck bed 2 is provided with a drive mechanism for driving the truck bed 2 to flip. The drive mechanism consists of two sets of hydraulic cylinders, which are respectively located below the two truck beds 2. The fixed end of the hydraulic cylinder is hinged to the frame 11, and the movable end of the hydraulic cylinder is hinged to the bottom of the truck bed 2. The hydraulic cylinder is used to push the two truck beds 2 upward at the same time, so that the two truck beds 2 flip to the sides respectively.

[0025] Working principle: Two sets of hydraulic cylinders can be activated synchronously for telescopic movement. With the frame 11 as a fixed support base, the hydraulic cylinders apply a tilting driving force to the two buckets 2 through the pushing action of the moving end, driving the two buckets 2 to tilt synchronously to both sides of the vehicle body, thus realizing synchronous unloading on both sides. At the same time, the two sets of hydraulic cylinders can be controlled independently and started and stopped separately. They can drive one side of the bucket 2 to tilt outward according to actual operation needs, thus completing the unloading operation on one side. The hydraulic cylinders adopt a hinged installation method, which can adapt to the angle changes during the tilting process of the buckets 2, ensuring that the buckets 2 can operate smoothly under both synchronous unloading and independent unloading conditions on one side.

[0026] It should be emphasized that the core improvement of this embodiment is that the truck bed 2 is divided into two groups, left and right, and the two groups of truck beds 2 are symmetrically installed along the left and right sides of the vehicle body. Each group of truck beds 2 is equipped with an independent hydraulic cylinder as a power component. The hydraulic cylinder outputs power to drive the corresponding truck bed 2 to complete the flipping action. During operation, the two groups of hydraulic cylinders can act synchronously, driving the truck beds 2 on both sides to flip and unload material to the outside of the vehicle body at the same time, realizing the double-sided bulk material spreading operation. Alternatively, the hydraulic cylinder on one side can be started and stopped independently according to the on-site operation requirements, driving the corresponding truck bed 2 to flip and unload material independently. The hydraulic cylinder power output is stable and reliable, which can ensure that the flipping operation of the truck bed 2 is more stable, effectively improving the overall unloading efficiency, and can be adapted to various complex working conditions such as narrow space and rapid material spreading.

[0027] Example 2 like Figures 1 to 10 In this embodiment, the drive mechanism is replaced by a flipping mechanism 3. The flipping mechanism 3 includes a mounting plate 31, on which two drive shafts 32 are rotatably mounted. Driven wheels 33 are fixedly mounted on each of the two drive shafts 32. An upper lifting assembly is mounted on each of the two drive shafts 32. A drive assembly 4 is provided on the lower side of the two driven wheels 33. The drive assembly 4 drives the two driven wheels 33 to rotate in opposite directions, thereby causing the upper lifting assembly to push the two carts 2 upward and flip them synchronously in opposite directions.

[0028] Working principle: such as Figure 3 , Figure 7 and Figure 8The dump truck body 1 serves as the overall load-bearing foundation, used to install and fix two sets of truck beds 2 and various transmission and drive components. The mounting plate 31 of the tipping mechanism 3 serves as the load-bearing base, and the two drive shafts 32 are rotated and limited. Each drive shaft 32 is fixed with a driven wheel 33 and equipped with a top assembly. During operation, the drive assembly 4 outputs power and drives the two driven wheels 33 to rotate in opposite directions. The driven wheels 33 drive the corresponding drive shafts 32 to rotate synchronously. The drive shafts 32 drive the matching top assemblies to run. The two sets of top assemblies push the corresponding truck beds 2 upwards, so that the two truck beds 2 are synchronously tilted to the left and right in opposite directions under the driving action, thereby completing the bidirectional synchronous unloading operation.

[0029] It should be emphasized that the core improvement of this embodiment is that by setting two sets of truck beds 2 on the body 1 of the dump truck and using the mounting plate 31 of the tipping mechanism 3 as the mounting base, and symmetrically arranging two drive shafts 32, driven wheels 33 and top assembly, the two sets of driven wheels 33 are driven to rotate in opposite directions by the output power of the drive assembly 4, which drives the drive shafts 32 and top assembly to operate synchronously, thereby pushing the two sets of truck beds 2 to tilt in opposite directions to the left and right sides of the vehicle body. This structure can simultaneously complete the double-sided bulk material laying operation, improve the unloading efficiency, and can be adapted to various complex working conditions such as narrow spaces and rapid material laying.

[0030] like Figures 5-7 In this embodiment, the upper lifting assembly includes a transverse connecting rod 34, which is fixedly sleeved on the transmission shaft 32. A vertical connecting rod 35 is rotatably mounted on one end of the transverse connecting rod 34 away from the transmission shaft 32. A limiting block 36 is sleeved on the surface of the vertical connecting rod 35, and the other end of the limiting block 36 is rotatably mounted on the mounting plate 31. The upper lifting assembly also includes a sliding groove 38. A slider 37 is hinged to one end of the vertical connecting rod 35 away from the transverse connecting rod 34, and the slider 37 is slidably mounted inside the sliding groove 38.

[0031] It should be noted that the transverse connecting rod 34 is fixedly sleeved on the drive shaft 32 and can rotate synchronously with the drive shaft 32. The end of the transverse connecting rod 34 away from the drive shaft 32 is rotatably connected to the vertical connecting rod 35. A limiting block 36 is sleeved on the outside of the vertical connecting rod 35, and the limiting block 36 is slidably sleeved on the vertical connecting rod 35. The other end is rotatably mounted on the mounting plate 31, thereby limiting the swing trajectory and range of motion of the vertical connecting rod 35. The top end of the vertical connecting rod 35 is hinged to a slider 37, which is slidably assembled on the truck bed. Inside the groove 38 on the lower side; when the drive shaft 32 rotates, it drives the transverse connecting rod 34 to rotate and swing. The transverse connecting rod 34 pushes the vertical connecting rod 35 to slide upward inside the limiting block 36, making telescopic swinging motion. The limiting block 36 positions and constrains the vertical connecting rod 35 to prevent the vertical connecting rod 35 from deviating. While the vertical connecting rod 35 moves, it drives the slider 37 to slide directionally along the inside of the groove 38, thereby realizing the lifting action of the vertical connecting rod 35, thus pushing the hopper 2 to complete the lateral overturning and unloading.

[0032] like Figure 7 and Figure 8 In this embodiment, the drive assembly 4 includes two drive wheels 41 and a servo motor 42. The two drive wheels 41 mesh with each other, and the output end of the servo motor 42 is fixedly connected to one of the drive wheels 41.

[0033] It should be noted that the output end of the servo motor 42 is fixedly connected to one of the drive wheels 41. After the servo motor 42 starts, it outputs rotational power, which drives the drive wheel 41 connected to it to rotate synchronously. The drive wheel 41 drives the other drive wheel 41 to rotate synchronously through meshing transmission. Since the two sets of drive wheels 41 adopt a meshing assembly method, the two drive wheels 41 can form a rotation state with opposite directions. The two drive wheels 41 respectively cooperate with the two sets of driven wheels 33 above to provide reverse power input for the two sets of tilting mechanisms 3, thereby meeting the operation drive requirements of the two side truck beds 2 to tilt synchronously in opposite directions.

[0034] Furthermore, this drive structure is more suitable for small-tonnage trucks. Trucks have strict industry and vehicle specifications regarding load capacity, and loading must strictly adhere to the rated standard during operation. Overloading is strictly prohibited, and the total load weight of the entire vehicle remains constant. This structure, without altering the truck's rated load capacity, splits the original integral cargo box into two independent truck beds 2. The load capacity of the entire vehicle is evenly distributed between the two truck beds 2, significantly reducing the load weight of each truck bed 2, far below the original rated load capacity of the integral truck bed 2. The significantly reduced load on each truck bed 2 not only lowers the load pressure on the gear set, keeping it within a safe load range, but also significantly reduces the drive load on the servo motor 42, lowering the motor's operating torque and workload. Simultaneously, relying on the mechanical transmission of the gear set, the linkage accuracy of the tilting action of both truck beds 2 can be effectively guaranteed. Compared to pure hydraulic control, the synchronization is higher, effectively avoiding deviations in tilting speed and angle on both sides, further ensuring the stability of the overall transmission and unloading operation.

[0035] like Figures 1-5 In this embodiment, doors 21 are rotatably installed on the opposite sides of the two truck beds 2, and the truck beds 2 and doors 21 are fixed by locking hooks 22.

[0036] It should be noted that during the material transfer process, the locking hook 22 is in a locked state, which can stably fix the door 21 at the end of the truck bed 2, close the discharge port of the truck bed 2, prevent the material from spilling or falling during transportation, and ensure the integrity of the material transportation. When the truck bed 2 needs to be tilted to unload, the locking hook 22 is released, and the door 21 can be opened freely relative to the truck bed 2 by relying on the rotating installation structure, fully opening the discharge port of the truck bed 2, ensuring that the material can be smoothly unloaded from the inside of the truck bed 2. After unloading, the door 21 can be rotated back to its original position and locked again by the locking hook 22 to restore the closed loading state of the truck bed 2, thereby realizing the opening and closing control and stable locking function of the door 21.

[0037] Example 3 It is understandable that in Embodiment 2 or 3, by setting two buckets 2 and by setting a tipping mechanism 3 and a drive component 4, the two buckets 2 are driven to tip to both sides simultaneously, which improves the unloading efficiency. However, in actual use, it is not possible to control the two buckets 2 to tip to the side separately. In some scenarios where only a single bucket 2 needs to unload or can only unload to one side, the adaptability of this design is insufficient, which limits the operational flexibility and scenario applicability of the equipment.

[0038] like Figure 8 To solve the above problems, a disengagement mechanism 5 is also installed on the mounting plate 31. The disengagement mechanism 5 includes a connecting plate 51, a cylinder 52 and two limiting rings 53. The cylinder 52 is fixedly installed on the side of the mounting plate 31 near the driven wheel 33. The connecting plate 51 is rotatably installed on the side of the driven wheel 33 near the mounting plate 31. The output end of the cylinder 52 is fixedly connected to the connecting plate 51. The two limiting rings 53 are both sleeved on the transmission shaft 32. The connecting plate 51 and the driven wheel 33 are placed between the two limiting rings 53.

[0039] Working principle: such as Figure 8 When a side-tipping unloading operation is required for one side of the truck bed 2, the cylinder 52 on the corresponding side is activated. The cylinder 52 outputs linear thrust and pushes the connecting plate 51 to move as a whole. The connecting plate 51 drives the driven wheel 33 at the corresponding position to move axially along the transmission shaft 32, so that the driven wheel 33 on this side separates from the corresponding driving wheel 41 on the lower side, and the two disengage from the transmission relationship. The driven wheel 33 on this side can no longer receive power from the driving wheel 41 and stops rotating. The driven wheel 33 on the other side maintains normal engagement with the driving wheel 41, can continue to receive power and rotate normally, and then drive the upper lifting component on the corresponding side to move, completing the side-tipping unloading operation of one side of the truck bed 2, realizing the working mode of independent unloading on one side of the equipment.

[0040] It should be noted that the connecting plate 51 and the driven wheel 33 adopt a rotating connection structure to adapt to different motion forms of the components. The connecting plate 51 only moves axially linearly with the cylinder 52, while the driven wheel 33 needs to rotate at high speed with the transmission shaft 32 when working. The rotating connection can eliminate the rotational constraint of the connecting plate 51 on the driven wheel 33, avoid the connecting plate 51 rotating synchronously with the driven wheel 33, and prevent interference in component movement and structural jamming. At the same time, this connection method can ensure that the connecting plate 51 can stably drive the driven wheel 33 to slide axially along the transmission shaft 32, smoothly complete the gear meshing and disengagement action, and realize unilateral power on / off control without affecting the normal rotational transmission of the driven wheel 33. Two limiting rings 53 can bidirectionally limit the axial movement of the connecting plate 51 and the driven wheel 33, restricting the sliding range of the connecting plate 51 and the driven wheel 33 on the transmission shaft 32 and preventing them from overtravel. One limiting ring 53 restricts the component from getting too close to the mounting plate 31, and the other limiting ring 53 restricts the component from moving too far outward, accurately constraining the sliding position of the component, ensuring the accuracy of the engagement and disengagement position of the driven wheel 33 and the driving wheel 41, preventing the component displacement from causing gear meshing misalignment, transmission jamming, and component loosening and shaking, and ensuring the stability of the disengagement mechanism 5 and the transmission structure.

[0041] It should be emphasized that the core improvement of this embodiment lies in: by setting up cylinder 52, one of the driven wheels 33 is pushed, causing the driven wheel 33 to disengage from the driving wheel 41 on one side, thus cutting off the power transmission on one side and realizing independent unloading of the single bucket 2. The limiting ring 53 can effectively limit the axial movement of the components, ensuring the engagement and disengagement accuracy of the equipment. The overall structure is adaptable to various working conditions, with stable operation and stronger versatility and practicality.

[0042] Example 4 It is understandable that in embodiments one, two or three, the truck bed 2 achieves synchronous double-sided tilting and unloading operations of the two sets of truck beds 2 through the cooperative transmission structure of the tilting mechanism 3 and the drive component 4. At the same time, it can achieve independent tilting and unloading operations of one side of the truck bed 2 by relying on the power on / off control function of the disengagement mechanism 5, so as to meet the unloading needs of different working conditions. However, in actual use, after the truck bed 2 completes the tilting and unloading action, some material is easily adhered to the inner wall surface of the truck bed 2, which cannot be completely discharged by its own weight, resulting in material residue problems of varying degrees. This leads to incomplete unloading and requires manual secondary cleaning, which is time-consuming and labor-intensive.

[0043] like Figures 9 to 10 To solve the above problems, a scraping mechanism 6 is provided on each of the two truck beds 2 on opposite sides. The scraping mechanism 6 includes an inner side plate 61 rotatably mounted on the truck bed 2, and a telescopic scraper 62 is slidably installed inside the inner side plate 61.

[0044] Working principle: such as Figure 9 An inner side plate 61 is rotatably installed inside the truck bed 2. A retractable scraper 62 is fitted at the bottom of the inner side plate 61. The inner side plate 61 is driven by an independent motor and can be controlled to complete the rotation. When the truck bed 2 has finished unloading and there is material residue, the motor drives the inner side plate 61 to rotate in a specific direction. During the rotation of the inner side plate 61, the retractable scraper 62 automatically extends with the movement. Under the extension and retraction action, the retractable scraper 62 always maintains close contact with the bottom surface of the truck bed 2 without any gaps. As the inner side plate 61 continues to rotate, it drives the retractable scraper 62, which is completely in contact with the bottom surface of the truck bed 2, to move synchronously. Through the scraping action of the retractable scraper 62, the material adhering to and remaining on the bottom surface of the truck bed 2 is scraped off and pushed out completely, thus removing the residual material from the inside of the truck bed 2 and solving the problem of incomplete unloading.

[0045] It should be emphasized that the core improvement of this embodiment lies in the following: by installing a telescopic scraper 62 at the lower end of the inner side plate 61, the telescopic scraper 62 can adaptively extend and retract with the rotation of the inner side plate 61. During the operation, it can always fit the bottom surface of the truck bed 2 without gaps, and can thoroughly scrape and clean the residual materials adhering to and retained on the inner wall of the truck bed 2. It can cooperate with the rotation of the inner side plate 61 to complete the automated material cleaning operation, effectively solving the technical problems of material residue and incomplete unloading after the truck bed 2 is overturned and unloaded, without the need for manual secondary cleaning.

[0046] like Figure 10 In this embodiment, the inner side plate 61 has multiple upper receiving grooves 611 inside, and the telescopic scraper 62 has a lower receiving groove 622 opposite to the upper receiving grooves 611. A spring 63 is installed inside the upper receiving grooves 611 and the lower receiving groove 622, and the two ends of the spring 63 are respectively fixed inside the upper receiving grooves 611 and the lower receiving groove 622.

[0047] It should be noted that the inner side plate 61 has several upper receiving grooves 611 inside, and the telescopic scraper 62 has a lower receiving groove 622 corresponding to the position of the upper receiving grooves 611. A spring 63 is assembled inside both the upper receiving grooves 611 and the lower receiving groove 622, with both ends of the spring 63 fixedly installed inside the grooves of the upper receiving groove 611 and the lower receiving groove 622, respectively. The upper receiving grooves 611 and the lower receiving groove 622 cooperate with each other, providing a fixed installation space and limiting constraint for the spring 63, preventing the spring 63 from shifting, falling off, or deforming during the telescopic operation. When the inner side plate 61 rotates, the contact resistance on the bottom surface of the truck bed 2 will generate reverse pressure on the telescopic scraper 62. Under the action of pressure, the telescopic scraper 62 can compress the spring 63 to achieve a slight retraction. When there is no protruding resistance or gap change on the contact surface, the spring 63 releases elastic potential energy and pushes the telescopic scraper 62 outward in the opposite direction. Through the elastic extension and contraction characteristics of the spring 63, the telescopic scraper 62 can adapt to the subtle structural changes of the bottom surface of the truck bed 2 and maintain a continuous contact state, thereby realizing the adaptive extension and contraction function of the telescopic scraper 62 and ensuring the stability of continuous scraping operation.

[0048] Example 4 The present invention also provides an installation device for the drive structure of a side-tipping dump truck, such as... Figures 1 to 10 In this embodiment, a hinge shaft 23 is provided on the side of the lower end of each of the two truck beds 2 near the hinge plate 12.

[0049] It should be noted that: such as Figure 1 and Figure 2 Both buckets 2 have a hinge shaft 23 on the side of the lower end near the hinge plate 12. The hinge shaft 23 serves as the hinge fulcrum for the flipping of the bucket 2 and is used to realize the rotational connection assembly between the bucket 2 and the hinge plate 12. When the upper push assembly of the flipping mechanism 3 pushes the bucket 2 upward, the bucket 2 rotates and swings around the hinge shaft 23 as a fixed point, so that the bucket 2 can stably complete the lateral flipping action.

[0050] like Figure 1 and Figure 2 In this embodiment, a frame 11 is included, which is located on the rear side of the dump truck body 1. A hinge plate 12 is provided on both sides of the frame 11, and a hinge shaft 23 is rotatably installed inside the hinge plate 12.

[0051] It should be noted that: the frame 11 is fixedly installed at the rear of the dump truck body 1 as a rear load-bearing structure. The frame 11 is symmetrically equipped with hinge plates 12 on the left and right sides, and the hinge shaft 23 is rotatably installed inside the corresponding hinge plate 12. The frame 11 provides a stable mounting base for the hinge plates 12 on both sides, ensuring that the installation position of the hinge plates 12 is fixed and the structural stress is uniform. The hinge plates 12 provide a rotation mounting point for the hinge shaft 23, allowing the hinge shaft 23 to rotate freely inside the hinge plate 12. When the truck bed 2 is performing a side-tilting unloading operation, the hinge shaft 23 forms a stable rotation fulcrum based on the hinge plate 12. Combined with the overall load-bearing function of the frame 11, it can constrain the tilting trajectory of the truck bed 2, ensuring that the truck bed 2 is under stable force and rotates smoothly during the tilting process, avoiding structural displacement, shaking and deformation, and ensuring the smooth progress of single-sided and double-sided tilting unloading operations.

[0052] Working principle: In use, the door 21 is first locked and fixed to the outside of the truck bed 2 by the locking hook 22, sealing the discharge port and preventing spillage of materials during vehicle transfer, thus ensuring transportation stability. When simultaneous unloading from both sides is required, the locking hooks 22 on both sides are released, and the door 21 is rotated to fully open the discharge port of the truck bed 2.

[0053] Then the servo motor 42 of the drive assembly 4 is started. The servo motor 42 drives the connected drive wheel 41 to rotate. The two meshing drive wheels 41 rotate in opposite directions and provide reverse power to the two sets of driven wheels 33. The equipment can switch the unloading mode through the disengagement mechanism 5. When unloading from both sides, the cylinders 52 on both sides press against the connecting plate 51, so that the driven wheel 33 and the driving wheel 41 maintain meshing transmission. The driven wheel 33 drives the transmission shaft 32 to rotate synchronously, driving the horizontal connecting rod 34 to swing, which in turn pushes the vertical connecting rod 35 to move. The vertical connecting rod 35 extends and retracts in a directional manner under the constraint of the limit block 36. The top slider 37 slides along the slide groove 38, which lifts the two side buckets 2 in a linkage, so that the two buckets 2 flip synchronously to the left and right, completing the double-sided flat unloading. When unloading from one side, the corresponding side cylinder 52 is activated, pushing the connecting plate 51 to drive the driven wheel 33 to slide axially, disengaging from the drive wheel 41, cutting off the power on one side, and only the one-sided truck bed 2 is tilted for operation; the two limit rings 53 limit in both directions to ensure the accuracy of gear meshing and disengagement; After the normal unloading is completed, the motor drives the inner side plate 61 to rotate. The telescopic scraper 62 extends adaptively and fits the bottom surface of the truck bed 2 under the elastic force of the spring 63. As it rotates, it scrapes off the residual material on the inner wall to achieve thorough cleaning. After the operation is completed, all structures are reset, the door 21 is closed and locked by the locking hook 22, and the equipment is restored to its initial state.

[0054] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed application.

Claims

1. A drive structure for a side-tipping dump truck, characterized in that, Includes a dump truck body (1), on which two truck beds (2) are installed; The lower side of the truck bed (2) is provided with a drive mechanism for driving the truck bed (2) to flip. The drive mechanism consists of two sets of hydraulic cylinders. The two sets of hydraulic cylinders are respectively located below the two truck beds (2). The fixed end of the hydraulic cylinder is hinged to the frame (11), and the movable end of the hydraulic cylinder is hinged to the bottom of the truck bed (2). The hydraulic cylinder is used to push the two truck beds (2) upward at the same time, so that the two truck beds (2) flip to the sides respectively.

2. The side-tipping dump truck drive structure as described in claim 1, characterized in that, The drive mechanism is replaced by a flipping mechanism (3), which includes a mounting plate (31). Two drive shafts (32) are rotatably mounted on the mounting plate (31). Driven wheels (33) are fixedly mounted on both drive shafts (32). A top-mounting assembly is mounted on both drive shafts (32). A drive assembly (4) is provided on the lower side of the two driven wheels (33). The drive assembly (4) drives the two driven wheels (33) to rotate in opposite directions, thereby causing the top-mounting assembly to push the two carts (2) upward and flip them synchronously in opposite directions.

3. The side-tipping dump truck drive structure as described in claim 2, characterized in that, The top assembly includes a horizontal connecting rod (34), which is fixedly sleeved on the drive shaft (32). A vertical connecting rod (35) is rotatably mounted on one end of the horizontal connecting rod (34) away from the drive shaft (32). A limiting block (36) is sleeved on the surface of the vertical connecting rod (35), and the other end of the limiting block (36) is rotatably mounted on the mounting plate (31).

4. The side-tipping dump truck drive structure as described in claim 3, characterized in that, The top assembly also includes a groove (38), and a slider (37) is hinged to one end of the vertical link (35) away from the horizontal link (34), the slider (37) being slidably mounted inside the groove (38).

5. The side-tipping dump truck drive structure as described in claim 2, characterized in that, The drive assembly (4) includes two drive wheels (41) and a servo motor (42). The two drive wheels (41) mesh with each other, and the output end of the servo motor (42) is fixedly connected to one of the drive wheels (41).

6. The side-tipping dump truck drive structure as described in claim 2, characterized in that, The mounting plate (31) is also equipped with a disengagement mechanism (5). The disengagement mechanism (5) includes a connecting plate (51), a cylinder (52) and two limiting rings (53). The cylinder (52) is fixedly installed on the side of the mounting plate (31) near the driven wheel (33). The connecting plate (51) is rotatably installed on the side of the driven wheel (33) near the mounting plate (31). The output end of the cylinder (52) is fixedly connected to the connecting plate (51). The two limiting rings (53) are both sleeved on the transmission shaft (32). The connecting plate (51) and the driven wheel (33) are placed between the two limiting rings (53).

7. The side-tipping dump truck drive structure as described in claim 1, characterized in that, Each of the two carts (2) is provided with a scraping mechanism (6) on one side opposite to the other. The scraping mechanism (6) includes an inner side plate (61) rotatably mounted on the cart (2). A telescopic scraper (62) is slidably mounted inside the inner side plate (61).

8. The side-tipping dump truck drive structure as described in claim 7, characterized in that, The inner side plate (61) has multiple upper receiving grooves (611) inside. The telescopic scraper (62) has a lower receiving groove (622) opposite to the upper receiving grooves (611). A spring (63) is installed inside both the upper receiving groove (611) and the lower receiving groove (622). The two ends of the spring (63) are fixed inside the upper receiving groove (611) and the lower receiving groove (622), respectively.

9. The side-tipping dump truck drive structure as described in claim 1, characterized in that, Each of the two truck beds (2) has a door (21) rotatably mounted on one side facing away from each other, and the truck beds (2) and the doors (21) are fixed by a locking hook (22).

10. An installation device for the drive structure of a side-tipping dump truck as described in any one of claims 1-9, characterized in that, Includes a frame (11), which is located on the rear side of the dump truck body (1). Both sides of the frame (11) are provided with hinge plates (12). The lower ends of the two truck beds (2) are provided with hinge shafts (23) on the side near the hinge plates (12). The hinge shafts (23) are rotatably installed inside the hinge plates (12).

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