Three-turning type agricultural four-wheel dump trailer

Abstract

The three-turning type agricultural four-wheel dump trailer comprises a frame, a carriage, a traction frame, a front axle and a rear axle, and wheels are fixed to the two ends of the front axle and the two ends of the rear axle; the front end and the rear end of the frame are respectively fixed with a front support shaft and a rear support shaft, and two ends of the front support shaft and the rear support shaft are respectively fixed with a universal ball joint; cylindrical sleeves are fixed to the four corners of the lower surface of the carriage chassis, the lower ends of the cylindrical sleeves are open, cylindrical cavities matched with the universal ball joints are formed in the cylindrical sleeves, U-shaped notches with downward openings are formed in the cylindrical sleeves, aligned pin shaft holes are formed in the lower ends of the cylindrical sleeves, and pin shafts are inserted into the pin shaft holes. And a driving mechanism is arranged on the frame. According to the three-turning type agricultural four-wheel dump trailer, the carriage can be selectively set among backward turning, leftward turning and rightward turning, so that bulk materials can be dumped into a field on a narrow farmland road, the application range is wide, manual unloading is not needed, the labor intensity is reduced, the working efficiency is improved, and the beneficial effect is remarkable.

Description

Technical Field

[0001] This invention relates to a dump trailer, and more specifically, to a three-tipping agricultural four-wheel dump trailer. Background Technology

[0002] Trailers have the advantages of large cargo capacity and low manufacturing cost, and are widely used in transportation and agriculture. For agricultural trailers, after loading freshly harvested grain crops such as corn and wheat, they need to be transported to the appropriate site for drying, which requires convenient unloading. Therefore, self-unloading trailers equipped with self-unloading devices have emerged. After transporting the goods to the destination, the self-unloading device lifts the trailer to automatically unload the crops, saving energy and improving work efficiency.

[0003] Agricultural dump trailers are used not only for transporting harvested materials but also frequently for transporting bulk materials such as farmyard manure to fields. However, farm roads are usually very narrow, making it impossible to drive them laterally. If a dump trailer only has a rear-tipping and self-unloading function, it cannot dump bulk materials onto field edges in narrow paths, limiting its use. Current agricultural trailers only have rear-tipping or side-tipping capabilities, lacking the ability to tip both rear-tipping and side-tipping. Therefore, this paper proposes a three-tipping four-wheeled agricultural dump trailer with rear-tipping, left-tipping, and right-tipping functions, suitable for transportation and self-unloading operations on relatively narrow field roads. Summary of the Invention

[0004] In order to overcome the shortcomings of the above-mentioned technical problems, the present invention provides a three-fold agricultural four-wheel self-unloading trailer.

[0005] The present invention relates to a three-tumbler agricultural four-wheel self-unloading trailer, comprising a frame, a cargo box, a towing frame, a front axle, and a rear axle. The cargo box is located above the frame, and the bottom of the cargo box is a cargo box base fixed to the frame. The rear axle is fixed to the lower rear side of the frame by leaf springs, and the front axle is located below the front side of the frame. Wheels are fixed to both ends of the front and rear axles. The towing frame is located at the front of the frame and is used to connect to a towing machine. The invention is characterized in that: a transverse front support axle and a rear support axle are respectively fixed to the front and rear ends of the frame. Both ends of the rear support shaft are fixed with spherical universal joints; cylindrical sleeves are fixed at the four corners of the lower surface of the carriage frame. The lower end of the cylindrical sleeve is open, and the inside is a cylindrical cavity that mates with the spherical universal joint. The cylindrical sleeve has a U-shaped groove with the opening facing downward. The spherical universal joint is inserted into the cylindrical cavity of the cylindrical sleeve through the U-shaped groove; the lower end of the cylindrical sleeve has a corresponding pin hole. A detachable pin is inserted into the pin hole to limit the movement of the spherical universal joint; a drive mechanism for lifting the carriage frame is set at the center of the frame.

[0006] The three-fold agricultural four-wheel self-unloading trailer of the present invention has a drive mechanism consisting of a lifting cylinder, a front crossbeam, a rear crossbeam, and a square bracket. The front and rear crossbeams are arranged in parallel, and their ends are fixed to the longitudinal beams of the vehicle frame. The square bracket is located between the front and rear crossbeams, and its front and rear ends are respectively hinged to the front and rear crossbeams via longitudinal pivots. Ear plates are fixed on the left and right sides below the square bracket. A transverse pivot is fixed on the cylinder body of the lifting cylinder and hinged to the ear plates. The telescopic rod of the lifting cylinder passes through the central cavity of the square bracket, and the end of the telescopic rod of the lifting cylinder is hinged to the center of the lower surface of the vehicle chassis.

[0007] The present invention relates to a three-fold agricultural four-wheel self-unloading trailer, wherein a turntable bracket is provided below the front end of the vehicle frame, the upper end of the turntable bracket is connected to the front end of the vehicle frame via a turntable, the front axle is fixedly connected to the turntable bracket via a leaf spring, and the rear end of the towing frame is hinged to the turntable bracket.

[0008] The three-fold agricultural four-wheel self-unloading trailer of the present invention has openable and closable doors on the left, right and rear sides of the cargo box.

[0009] The present invention relates to a three-fold agricultural four-wheel self-unloading trailer, wherein a spare tire bracket is fixed on the outer side of the front wall of the trailer body, and a spare tire is fixed on the spare tire bracket.

[0010] The present invention relates to a three-fold agricultural four-wheel self-unloading trailer, wherein a ladder is fixed to the outer side of the front wall of the trailer.

[0011] The present invention relates to a three-fold agricultural four-wheel self-unloading trailer, wherein side guardrails are fixed on both the left and right sides of the chassis, and the side guardrails are located between the front axle and the rear axle.

[0012] The beneficial effects of this invention are as follows: The three-tipping agricultural four-wheel self-unloading trailer of this invention is equipped with a frame, a cargo box, a cargo box floor, a front axle, a rear axle, and a towing frame. Front and rear support axles are fixed to the frame, and spherical universal joints are fixed to both ends of the front and rear support axles. Cylindrical sleeves are fixed to the four corners of the lower surface of the cargo box floor. The interior of the cylindrical sleeves is a cylindrical cavity that mates with the spherical universal joints. The cylindrical sleeves have U-shaped slots and pin holes at their lower ends. Thus, when transporting materials, the cylindrical cavities of the four cylindrical sleeves on the cargo box floor engage with the four spherical universal joints, achieving a fixed connection between the cargo box and the frame, thereby enabling the transport of goods. When tipping over is required, the pins on the two front cylindrical sleeves are removed, while the pins on the two rear cylindrical sleeves are retained. When the mechanism lifts the middle of the truck bed frame, the truck bed can be tilted backward. When the truck bed needs to be tilted to the left, the pins on the two cylindrical sleeves on the right side are removed, while the pins on the two cylindrical sleeves on the left side are retained. Under the upward action of the drive mechanism, the truck bed can be tilted to the left. Correspondingly, when the truck bed needs to be tilted to the right, the pins on the two cylindrical sleeves on the left side are removed, while the pins on the two cylindrical sleeves on the right side are retained. Under the upward action of the drive mechanism, the truck bed can be tilted to the right. It can be seen that the three-tilt agricultural four-wheel self-unloading trailer of the present invention can be set to tilt backward, left, and right, so that bulk materials can be dumped in the fields on narrow farm roads. It has a wide range of applications, eliminates the need for manual unloading, reduces labor intensity, improves work efficiency, and has significant beneficial effects.

[0013] Furthermore, a drive mechanism consisting of a front crossbeam, a rear crossbeam, a square bracket, and a lifting cylinder is provided. The two ends of the front and rear crossbeams are fixed to the frame. The front and rear ends of the square bracket are hinged (rotatably fixed) to the front and rear crossbeams respectively via a longitudinal pivot. Ear plates are fixed on the left and right sides of the square bracket. The cylinder body of the lifting cylinder is hinged (rotatably fixed) to the ear plates via a transverse pivot. The telescopic rod of the lifting cylinder passes through the inner cavity of the square bracket and is hinged and fixed to the lower surface of the carriage underframe. Thus, when the lifting cylinder drives the carriage to tip backward, the lifting cylinder tilts forward and downward around the transverse pivot to lift the carriage backward. When the carriage needs to tip left or right, the lifting cylinder rotates around the longitudinal pivot, rotating to the lower right and lower left respectively, so as to drive the carriage to tip left and right, achieving automatic unloading. Attached Figure Description

[0014] Figure 1 This is a front view of the three-tumble agricultural four-wheel self-dumping trailer of the present invention; Figure 2 This is a rear view of the three-tipping agricultural four-wheel self-unloading trailer of the present invention; Figure 3 This is a top view of the three-tumble agricultural four-wheel self-unloading trailer of the present invention; Figure 4This is a bottom view of the three-tumble agricultural four-wheel self-unloading trailer of the present invention; Figure 5 This is a left view of the three-tipping agricultural four-wheel self-dumping trailer of the present invention; Figure 6 This is a right view of the three-tipping agricultural four-wheel self-unloading trailer of the present invention; Figure 7 This is a perspective view of the three-tumble agricultural four-wheel self-unloading trailer of the present invention; Figure 8 , Figure 9 These are perspective views of the three-fold agricultural four-wheeled self-unloading trailer of the present invention with part of the cargo box removed and with the entire cargo box removed, respectively. Figure 10 , Figure 11 These are all schematic diagrams of the structure of the front support shaft or rear support shaft and the cylindrical sleeve in this invention; Figure 12 This is a perspective view of the driving structure in this invention; Figure 13 This is a schematic diagram of the structure of the turntable support in this invention; Figure 14 This is a schematic diagram of the rear tipping of the three-tilting agricultural four-wheeled self-unloading trailer of the present invention; Figure 15 This is a schematic diagram of the right-side overturning of the three-tipping agricultural four-wheel self-dumping trailer of the present invention.

[0015] In the diagram: 1. Frame, 2. Carriage, 3. Carriage underframe, 4. Front axle, 5. Rear axle, 6. Leaf spring, 7. Traction frame, 8. Wheel, 9. Carriage door, 10. Front support axle, 11. Rear support axle, 12. Cylindrical sleeve, 13. Spherical universal joint, 14. Cylindrical cavity, 15. U-shaped groove, 16. Pin hole, 17. Turntable bracket, 18. Turntable, 19. Spare tire bracket, 20. Spare tire, 21. Ladder, 22. Drive mechanism, 23. Lifting cylinder, 24. Front crossbeam, 25. Rear crossbeam, 26. Square bracket, 27. Ear plate, 28. Longitudinal pivot, 29. Transverse pivot, 30. Side guardrail. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] like Figures 1 to 7As shown, the front view, rear view, top view, bottom view, left view, right view, and perspective view of the three-tumble agricultural four-wheel self-dumping trailer of the present invention are given respectively. The three-tumble agricultural four-wheel self-dumping trailer shown consists of a frame 1, a cargo box 2, a front axle 4, a rear axle 5, wheels 8, leaf springs 6, a turntable 18, a turntable bracket 17, and a drive mechanism 22. The frame 1 is a rectangular frame structure, which serves to fix and support the vehicle. The rear axle 5 is fixed to the lower rear end of the frame 1 via the leaf springs 6. The turntable bracket 17 is located below the front end of the frame 1 and is connected to the front end of the frame 1 via the turntable 18. The rear end of the towing frame 7 is hinged to the front end of the turntable bracket 17 and is used to connect with the towing machinery. In this way, under the dragging action of the towing machinery, the turntable bracket 17 can both pull the frame 1 and rotate relative to the front end of the frame 1, making it convenient for the towing machinery and the frame 1 to travel on relatively narrow field roads.

[0018] like Figure 8 and Figure 9 The figures show perspective views of the three-fold agricultural four-wheeled self-dumping trailer of the present invention with part of the cargo box removed and with the entire cargo box removed. The front axle 4 is fixed to the bottom of the turntable bracket 17 by leaf springs 6. Wheels 8 are provided at both ends of the front axle 4 and the rear axle 5. The cargo box 2 is located above the frame 1, and the bottom of the cargo box 2 is the cargo box base 3. A front support axle 10 and a rear support axle 11 are fixed to the front and rear ends of the frame 1, respectively. Both the front support axle 10 and the rear support axle 11 are arranged laterally, providing support for the cargo box 2. Spherical universal joints 13 are fixed to both ends of the front support axle 10 and the rear support axle 11. The ball joint 13 is fixed by being inserted into the inner cavity of the front support shaft 10 and the rear support shaft 11, so that the ball joint 13 cannot move in the axial direction of the front support shaft 10 and the rear support shaft 11, but can rotate around the axis of the front support shaft 10 and the rear support shaft 11 to cooperate with the rearward tilting action of the carriage 1.

[0019] like Figure 10 and 11 As shown, a schematic diagram of the structure of the front support shaft or rear support shaft and the cylindrical sleeve in this invention is given. The cylindrical sleeve 12 that mates with the ball joint 13 is fixed at the four corners of the bottom of the carriage frame 3. The lower end of the cylindrical sleeve 12 is open and the upper end is fixed to the lower surface of the carriage frame 3. The interior of the cylindrical sleeve 12 is a cylindrical cavity 14 that accommodates the ball joint 13. When the carriage 2 is in the process of transporting goods, the four ball joints 13 are inserted into the cylindrical cavity 14 of the cylindrical sleeve 12 to realize the fixed connection between the carriage 2 and the frame 1.

[0020] In order to allow the ball joint 13 to engage with the cylindrical cavity 14 during the descent of the carriage 2, the cylindrical sleeve 12 shown is provided with a U-shaped groove 15 with the opening facing downwards; in order to limit the ball joint 13 engaged with the cylindrical cavity 14 and prevent the ball joint 13 from dislodging from the cylindrical cavity 14, the lower end of the cylindrical sleeve 12 shown has two aligned pin holes 16. Inserting a pin into the pin hole 16 can limit the ball joint 13. When the carriage 1 needs to tip over, tilt to the left or right, the corresponding pin on the cylindrical sleeve 12 needs to be removed.

[0021] A drive mechanism 22 is located at the center of the frame 1. The drive mechanism 22 is used to lift the center of the carriage base 3 upwards. During normal material transport in the carriage 2, the four cylindrical sleeves 12 are fixed to the four spherical universal joints 13, achieving a fixed connection between the carriage 2 and the frame 1 for transporting goods. When the carriage 2 needs to tilt backwards, the pins on the two front cylindrical sleeves 12 are removed, while the pins on the two rear cylindrical sleeves 12 remain. Thus, during the process of the drive mechanism 22 lifting the center of the frame 1, since the two rear spherical universal joints 13 cannot detach from the cylindrical sleeves 12, while the two front spherical universal joints 13 can detach, the carriage 2 will tilt backwards when lifted by the drive mechanism 22. Figure 14 The diagram shows a three-tipping agricultural four-wheel self-dumping trailer of the present invention tipping over.

[0022] When the vehicle needs to tilt to the right, the pins on the two cylindrical sleeves 12 on the left are removed, while the pins on the two cylindrical sleeves 12 on the right are retained. Thus, during the process of the lifting cylinder 23 in the drive mechanism 22 pushing the center position of the chassis 3 upwards, the two cylindrical sleeves 12 on the right cannot disengage from the spherical universal joint 13, while the two cylindrical sleeves 12 on the left can disengage from the spherical universal joint 13, allowing the vehicle body 2 to tilt to the right. Figure 15 As shown, a schematic diagram of the right-side tipping of the three-tilting agricultural four-wheeled self-dumping trailer of the present invention is provided.

[0023] Accordingly, when the vehicle needs to be overturned to the left, the pins on the two cylindrical sleeves 12 on the right side are removed, while the pins on the two cylindrical sleeves 12 on the left side are retained. In this way, when the lifting cylinder 23 on the drive mechanism 22 drives the middle part of the underframe 3 of the carriage to rise, since the two ball joints 13 on the left side cannot be disengaged from the cylindrical sleeves 12, while the two ball joints 13 on the right side can be disengaged from the cylindrical sleeves 12, the carriage 2 can be overturned to the left.

[0024] To accommodate the rearward, leftward, and rightward tilting of carriage 2, the lifting cylinder 23 on the drive mechanism 22 cannot be fixed; it needs to tilt and rotate accordingly to match the tilting angle of carriage 2. For example... Figure 12The diagram shows a perspective view of the drive structure of this invention. The drive mechanism 22 consists of a front crossbeam 24, a rear crossbeam 25, a square bracket 26, and a lifting cylinder 23. The front crossbeam 24 and the rear crossbeam 25 are arranged parallel to each other, and their ends are fixed to the two longitudinal beams of the frame 1. The square bracket 26 is located between the front crossbeam 24 and the rear crossbeam 25. The front end and the rear end of the square bracket 26 are rotatably fixed to the front crossbeam 24 and the rear crossbeam 25 respectively via a longitudinal pivot 28. This allows the square bracket 26 to rotate around the longitudinal pivot 28, thereby enabling the lifting cylinder 23 to tilt left and right.

[0025] The telescopic rod of the lifting cylinder 23 is located in the central cavity of the square bracket 26. Ear plates 27 are fixed to both the left and right sides below the square bracket 26. The cylinder body of the lifting cylinder 23 is rotatably fixed to the ear plates 27 via a transverse pivot 29. The end of the telescopic rod of the lifting cylinder 23 is hinged to the center of the carriage underframe 3. The lifting cylinder 23 rotates around the transverse pivot 29 to facilitate the rearward tilting of the carriage 2.

[0026] Thus, when the carriage 2 tilts backward, as the carriage underframe 3 rises, the lower end of the lifting cylinder 23 tilts towards the front of the frame 1 due to the rotation of the transverse pivot 29, ensuring the carriage 2 tilts backward normally. When the carriage 2 tilts to the right, the lower end of the lifting cylinder 23 tilts to the left due to the rotation of the square bracket 26 around the longitudinal pivot 28, ensuring the carriage 2 tilts to the right normally; correspondingly, when the carriage 2 tilts to the left, the lower end of the lifting cylinder 23 tilts to the right due to the rotation of the square bracket 26 around the longitudinal pivot 28, achieving the carriage 2 tilting to the left normally.

[0027] To unload the bulk materials from carriage 2, carriage 2 is equipped with openable and closable doors 9 on its left, right, and rear sides. A spare tire bracket 19 and a ladder 21 are fixed to the outer surface of the front wall of carriage 2. A spare tire is fixed to the spare tire bracket 19, and users can enter carriage 2 by climbing the ladder 21. Side guardrails 30 are fixed to both sides of the frame 1, located between the front axle 4 and the rear axle 5. The guardrails 30 prevent people and animals from entering the underside of the vehicle, thus providing protection.

Claims

1. A three-tumbler agricultural four-wheel self-unloading trailer, comprising a frame (1), a cargo box (2), a towing frame (7), a front axle (4), and a rear axle (5), wherein the cargo box is located above the frame, and the bottom of the cargo box is a cargo box underframe (3) fixed to the frame; the rear axle is fixed to the lower rear side of the frame by leaf springs, and the front axle is located below the front side of the frame, with wheels (9) fixed at both ends of the front and rear axles; the towing frame is located at the front of the frame and is used to connect with towing machinery; characterized in that: The front and rear ends of the frame are respectively fixed with a transverse front support shaft (10) and a rear support shaft (11), and both ends of the front and rear support shafts are fixed with ball joints (13); cylindrical sleeves (12) are fixed at the four corners of the lower surface of the car body frame, the lower end of the cylindrical sleeve is open and the inside is a cylindrical cavity (14) that cooperates with the ball joint, and a U-shaped groove (15) with the opening facing downward is opened on the cylindrical sleeve, and the ball joint is inserted into the cylindrical cavity of the cylindrical sleeve through the U-shaped groove; the lower end of the cylindrical sleeve is provided with a corresponding pin hole (16), and a detachable pin for limiting the ball joint is inserted into the pin hole; a drive mechanism (22) for lifting the car body frame is provided at the center of the frame.

2. The three-tipping agricultural four-wheeled self-unloading trailer according to claim 1, characterized in that: The drive mechanism consists of a lifting cylinder (23), a front crossbeam (24), a rear crossbeam (25), and a square bracket (26). The front and rear crossbeams are arranged in parallel. The two ends of the front and rear crossbeams are fixed to the longitudinal beams of the frame (1). The square bracket is located between the front and rear crossbeams. The front and rear ends of the square bracket are respectively hinged to the front and rear crossbeams via longitudinal pivots (28). Ear plates (27) are fixed on the left and right sides below the square bracket. A transverse pivot (29) is fixed on the cylinder body of the lifting cylinder and hinged to the ear plates. The telescopic rod of the lifting cylinder passes through the central cavity of the square bracket. The end of the telescopic rod of the lifting cylinder is hinged to the center of the lower surface of the car body frame (3).

3. The three-tumbler agricultural four-wheeled self-unloading trailer according to claim 1 or 2, characterized in that: A turntable bracket (17) is provided below the front end of the vehicle frame (1). The upper end of the turntable bracket is connected to the front end of the vehicle frame via a turntable (18). The front axle (4) is fixedly connected to the turntable bracket via a leaf spring (6). The rear end of the traction frame (7) is hinged to the turntable bracket.

4. The three-tumbler agricultural four-wheeled self-unloading trailer according to claim 1 or 2, characterized in that: The carriage (2) is provided with carriage doors (9) that can be opened and closed on the left, right and rear sides.

5. The three-tumbler agricultural four-wheeled self-unloading trailer according to claim 1 or 2, characterized in that: A spare tire bracket (19) is fixed to the outer side of the front wall of the carriage (2), and a spare tire (20) is fixed on the spare tire bracket.

6. The three-tumbler agricultural four-wheeled self-unloading trailer according to claim 1 or 2, characterized in that: An escalator (21) is fixed to the outer side of the front wall of the carriage (2).

7. The three-tumbler agricultural four-wheeled self-unloading trailer according to claim 1 or 2, characterized in that: The underframe (3) of the carriage is fixed with side guardrails (30) on both the left and right sides, and the side guardrails are located between the front axle (4) and the rear axle (5).

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