Dumper frame assembly

Abstract

The utility model relates to the field of electro-tricycles, and discloses a dumper frame assembly which comprises a frame component, the frame component comprises a front axle and a rear axle, the rear axle comprises longitudinal beams and at least two cross beams, the longitudinal beams comprise side beams and mounting beams, hopper mounting holes are formed in the ends, away from the front axle, of the side beams, and the cross beams are fixedly arranged between the side beams and are perpendicular to the side beams. The installation beams are fixedly arranged between the adjacent cross beams, hydraulic cylinder hinge positions are arranged on the installation beams, and the distance between the hydraulic cylinder hinge positions and the cross beams is 0.8-1.0 time of the stroke of hydraulic cylinders hinged to the hydraulic cylinder hinge positions. In order to solve the problem that when the automatic unloading function is achieved, frame structure limitation and battery installation space conflict exist, interference between a hydraulic cylinder and a battery installation area is successfully avoided through the unique frame assembly structure, the elaborately-calculated hydraulic cylinder hinge position and the scientifically-arranged installation beams, and the automatic unloading function is achieved. The automatic unloading system can be safely and efficiently installed in a compact space, and the unloading efficiency and the overall stability of a vehicle are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of electric tricycles, in particular to a dump truck frame assembly. Background Art

[0002] In small cargo delivery scenarios, three-wheeled cargo motorcycles are often used to transport small batches of goods due to their small and flexible characteristics. Although the loading and unloading of whole boxes or parcels can be handled conveniently, conventional unloading methods are often inefficient when faced with bulk and granular goods such as sand. In contrast, large trucks are generally equipped with automatic unloading systems, which achieve smooth unloading of goods through hydraulic or mechanical structures. Although existing tricycles already have hydraulic unloading systems, such as the Chinese patent, publication number: CN205417290U discloses a brick stack self-loading and unloading tricycle, which uses the main and auxiliary hydraulic lifting systems and the sliding system to slide the dump truck bucket to the rear of the vehicle to complete the unloading operation, but there is a problem that the structure of the lifting system is too complicated, which is not conducive to subsequent repair and maintenance. Utility Model Content

[0003] The utility model aims to provide a dump truck frame assembly to simplify the hydraulic structure of a tricycle and realize smooth unloading of goods.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dump truck frame assembly, including a frame component, the frame component includes a front axle and a rear axle, the rear axle includes a longitudinal beam and at least two cross beams, the longitudinal beam includes a side beam and a mounting beam, the side beam is provided with a bucket mounting hole away from the front axle end, the cross beam is fixedly arranged between the side beams and is perpendicular to the side beams, the mounting beam is fixedly arranged between adjacent cross beams, a hydraulic cylinder articulation position is arranged on the mounting beam, and the spacing between the hydraulic cylinder articulation position and the cross beam is 0.8-1.0 times the stroke of the hydraulic cylinder articulated at the hydraulic cylinder articulation position.

[0005] In truck design, hydraulic systems are usually used to achieve automatic unloading. The hydraulic cylinder is hinged to the bottom of the bucket with its output shaft, and the upper part is hinged to the frame to form a suspension-like structure. When not unloading, the bucket remains horizontally placed on the frame; when unloading is required, the hydraulic cylinder drives the bucket to rotate around the rear pivot to an inclined state through telescopic movement, so that the goods can be unloaded smoothly. However, on three-wheeled cargo motorcycles, especially electric three-wheeled ones, due to the small size of the frame and the need to reserve a battery installation position, the hydraulic cylinder will rotate while pushing the bucket to rotate, which may cause interference between the hydraulic cylinder and the battery installation area.

[0006] The beneficial effects of this solution are: 1. Compared with the background technology that uses the main and auxiliary hydraulic lifting systems and the sliding system to slide the dump truck bucket to the rear of the vehicle to complete the dump operation, the utility model only needs to install a hydraulic cylinder on the axis of the frame to complete the dump operation, which greatly simplifies the dump hydraulic system and reduces the difficulty of subsequent repair and maintenance.

[0007] 2. The frame assembly has a unique structure, consisting of a front axle and a rear axle. The rear axle includes a longitudinal beam and at least two cross beams. The longitudinal beam is divided into a side beam and a mounting beam. A truck bed mounting hole is provided at the end of the side beam, and the cross beam is vertically fixed between the side beams to ensure the strength of the frame.

[0008] 3. The mounting beam is cleverly arranged between adjacent beams, on which a hinge position for the hydraulic cylinder is preset. The distance between the hinge position and the beam is carefully calculated, which is approximately 0.8 to 1.0 times the stroke of the hydraulic cylinder, ensuring that during the extension and retraction of the hydraulic cylinder, the truck bed can smoothly transform from a horizontal state to an inclined state to achieve automatic unloading of the cargo.

[0009] 4. In view of the current situation that tricycles, especially electric tricycles, have narrow frame space and need to be compatible with battery installation, this solution accurately plans the hinge position of the hydraulic cylinder through scientific layout and adjustment of the installation beam length, successfully avoiding the potential interference problem between the hydraulic cylinder and the battery installation area during operation, and realizing the safe and efficient installation of the hydraulic unloading system in a compact space, overcoming the structural limitations of tricycle cargo motorcycles in realizing the automatic unloading function, which not only improves the unloading efficiency, but also ensures the overall structural stability of the vehicle, providing a very practical and innovative solution for the tricycle industry.

[0010] Furthermore, the front axle includes a faucet mounting position and a curved beam, a first connecting member is fixedly arranged between the faucet mounting position and the curved beam, the first connecting member is vertically arranged on the curved beam, and the angle between the axis of the faucet mounting position and the center line of the first connecting member is 20±2°.

[0011] Beneficial effects: This angle design helps to disperse the force from the handlebar direction, so that the force distribution of the front axle is more uniform during steering, thereby improving the stability of the vehicle during driving; by adjusting the relative position of the handlebar installation position and the connecting parts, the vehicle's handling performance can be effectively improved, allowing the driver to control the vehicle more accurately and flexibly during driving; this angle design fully considers the coordination between the front axle and other frame components, making the overall frame structure more compact and reasonable, which is conducive to integrating more functional components in a limited space, such as storage boxes, brake and accelerator pedals, etc.

[0012] Furthermore, the curved beam also includes a connecting portion fixedly connected to the side beam, and the angle between the center line of the connecting portion and the center line of the side beam is 60±3°.

[0013] Beneficial effects: The 60° angle design formed by the connection part and the side beam can effectively disperse the stress from the junction of the curved beam and the side beam, and improve the overall structural stability of the frame, especially when the load changes or driving on complex road conditions, it can ensure the rigidity and strength of the frame and avoid deformation or damage of the frame due to stress concentration; reasonable angle design helps to improve the center of gravity distribution and driving posture of the vehicle, reduce the bumps and vibrations caused by unreasonable frame structure, thereby improving the driver's comfort and driving safety; this design improvement not only enhances the overall stability of the tricycle frame and optimizes the spatial layout, but also indirectly improves driving comfort and maintenance convenience, further highlighting the superiority of the utility model dump truck frame assembly in the field of tricycle cargo motorcycles.

[0014] Furthermore, a second connecting member is provided on the side beam, and a battery mounting plate is fixed on the second connecting member.

[0015] Beneficial effects: By arranging the second connecting piece on the side beam, the longitudinal space of the frame can be fully utilized to find a suitable installation position for the battery, avoiding occupying valuable compartment space, while also avoiding interference with key components such as the hydraulic cylinder, thereby ensuring the rationality of the overall structural layout; the second connecting piece plays a role in stabilizing the support of the battery mounting plate, ensuring the safety and stability of the battery during driving, avoiding battery displacement or damage due to factors such as bumps and vibrations, thereby effectively ensuring the normal operation of the vehicle and the battery life; the battery installation position is reasonably arranged to make the battery weight distribution more balanced, which helps to reduce the pressure on a specific area of ​​the frame, and further improves the bearing capacity and service life of the entire frame structure.

[0016] Furthermore, it also includes a safety component, which includes a guide rod, one end of which is fixedly connected to the curved beam, and the other end of which extends toward the rear axle and away from the frame, and the vertical line of the farthest end of the guide rod coincides with the sideline of the truck bed.

[0017] Beneficial effects: 1. When the vehicle encounters a frontal eccentric collision, the guide rod can play a buffering and guiding role, disperse the impact force, reduce the direct impact on the vehicle body, especially the frame, thereby reducing the degree of damage to the vehicle and protecting the driver and cargo; 2. The guide rod is used as a measuring tool, and the part extending to the edge of the truck bed can help the driver more accurately judge the lateral distance between the vehicle body and surrounding obstacles in narrow alleys, parking spaces or other restricted spaces, effectively prevent scratches on the side of the vehicle body, and improve the driving safety and operating convenience of the vehicle in a small space.

[0018] Furthermore, a third connecting member is fixedly arranged between the guide rod and the curved beam.

[0019] Beneficial effects: The guide rod and the curved beam are tightly combined through the third connecting piece, which effectively disperses the load on the guide rod caused by collision or other external forces, enhances the stability and strength of the entire frame structure, and improves the ability of the frame to resist deformation and fracture; the addition of the third connecting piece ensures the firmness and durability of the connection between the guide rod and the curved beam, avoids loosening or detachment of the connection between the guide rod and the curved beam due to long-term use or impact, and improves the reliability and service life of the entire safety component; through the reasonable design of the third connecting piece, the force exerted on the guide rod can be more effectively transmitted to the frame body, thereby forming effective stress dispersion and force transmission in the entire frame structure, and further improving the frame's ability to absorb and resolve impact forces.

[0020] Furthermore, the safety component also includes a leaf spring, which is fixedly arranged on the first connecting member.

[0021] Beneficial effects: When a vehicle collides, the leaf spring can effectively absorb and disperse the impact energy with its excellent elastic properties, greatly reducing the direct impact of the collision on the frame and car body structure, thereby reducing the possibility of damage to the car body and improving the safety of the vehicle; the leaf spring can not only resist sudden collisions, but also play a good buffering role against bumps and vibrations of the road during vehicle driving, thereby improving the vehicle's driving stability and ride comfort.

[0022] Furthermore, it also includes a truck bucket and a widening member. The truck bucket is hingedly mounted on the truck bucket mounting hole, the widening member is fixed on the first connecting member, and the length of the widening member is ≤ the width of the truck bucket.

[0023] Beneficial effects: 1. Since the length of the widening part does not exceed the width of the truck bed, the front and rear widths of the truck body can be effectively kept relatively stable when loading goods or raising or lowering the truck bed, thereby reducing the driver's misjudgment of the lateral width during driving and operation, and improving the accuracy and safety of driving control; 2. The layout of the traditional tricycle cab, which is narrow in front and wide in the back, is changed, and the usable area of ​​the tricycle cab is increased, so that the space of the cab can be retained and utilized to the greatest extent, increasing the actual area of ​​the cab, thereby providing a more spacious and comfortable riding environment for the driver and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of Example 1 of the utility model;

[0025] Figure 2 It is a front view of embodiment 1 of the utility model;

[0026] Figure 3 It is a top view of embodiment 1 of the utility model;

[0027] Figure 4It is a top view of embodiment 2 of the utility model. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] The figure marks in the drawings of the specification include: faucet mounting position 11, first connecting member 111, reinforcement member 112, curved beam 12, connecting portion 121, side beam 13, second connecting member 131, truck bed mounting hole 132, seat box cover mounting hole 133, cross beam 14, battery mounting plate 15, widening member 16, mounting beam 2, hydraulic cylinder hinge position 21, guide rod 31, third connecting member 311, leaf spring 32, rotating shaft 4.

[0030] Example 1

[0031] Embodiment 1 is basically as attached Figure 1-3 As shown, Figure 1-3 The dump truck frame assembly shown in the figure includes a seat box, a truck bed and a frame assembly as well as a safety assembly. The seat box includes a storage box and a seat box cover. Figure 1 As shown, the frame assembly includes a rear axle and a front axle, the rear axle includes a longitudinal beam and two cross beams 14, the longitudinal beam includes a side beam 13 and a mounting beam 2, the cross beam 14 is welded between the side beams 13 and is perpendicular to the side beams 13, the mounting beam 2 is welded between adjacent cross beams 14, a second connecting member 131 is welded to the side beam 13, and a battery mounting plate 15 is welded or bolted to the second connecting member 131, as shown in FIG. Figure 2 As shown, the side beam 13 is provided with a seat box cover mounting hole 133 and a bucket mounting hole 132, referring to Figure 4 The seat box cover mounting hole 133 is fixed with a rotating shaft 4 by bolts, and the seat box cover is rotatably arranged on the rotating shaft 4 of the seat box cover mounting hole 133. When in use, the seat box cover can be hinged to the frame through the seat box mounting hole 133, so that the user can open the seat box and place or take out the items stored in the storage box. The right end of the side beam 13 is provided with a bucket mounting hole 132, and the bucket is hingedly mounted on the bucket mounting hole 132. A hydraulic cylinder is arranged under the bucket, such as Figure 3 As shown, a hydraulic cylinder hinge position 21 is provided on the mounting beam 2, and the spacing between the hydraulic cylinder hinge position 21 and the left cross beam 14 is 0.8-1.0 times, preferably 0.9 times, of the stroke of the hydraulic cylinder hinged at the hinge position, so as to avoid interference with the battery mounting position when the hydraulic cylinder is in operation. During installation, the output shaft of the hydraulic cylinder is hinged to the bottom of the truck bucket, and the front end of the cylinder body of the hydraulic cylinder is hinged to the mounting beam 2 through the hydraulic cylinder hinge position 21. During unloading, the output shaft of the hydraulic cylinder is extended to push the truck bucket to rotate around the truck bucket mounting hole 132, so that the truck bucket is tilted and unloading is completed. After unloading, the output shaft of the hydraulic cylinder contracts and the truck bucket returns to normal.

[0032] The front axle includes a handlebar installation position 11, a first connecting member 111 and a curved beam 12. The handlebar installation position 11 is a hollow cylindrical structure for installing the steering handlebar of the tricycle. Figure 2 As shown, the faucet mounting position 11 is welded obliquely at the top of the first connecting member 111, and the lower end of the first connecting member 111 is vertically welded to the curved beam 12. The angle between the axis of the faucet mounting position 11 and the center line of the first connecting member 111 is α, α is 18-25°, preferably 20°±2°, and the curved beam 12 includes a connecting portion 121, and the connecting portion 121 is welded to the side beam 13. The angle θ between the center line of the connecting portion 121 and the center line of the side beam 13 is 60±3°. A reinforcement member 112 is also welded between the first connecting member 111 and the curved beam 12, thereby enhancing the connection strength between the first connecting member and the curved beam 12.

[0033] The safety assembly includes a guide rod 31 and a leaf spring 32. Figure 1 , Figure 3 As shown, one end of the guide rod 31 is welded to the curved beam 12 on both sides of the frame, and the other end extends toward the rear axle and away from the frame. The farthest vertical line of the guide rod 31 coincides with the edge line of the dump truck bucket. A third connecting member 311 is also welded between the guide rod 31 and the curved beam 12 to enhance the connection strength of the guide rod 31. The leaf spring 32 is welded to the first connecting member 111. When the driver drives the tricycle into a narrow lane, the guide rod 31 can be used to judge the width of the lane and the width of the vehicle body to avoid the vehicle body from scratching the lane. In addition, when the tricycle collides eccentrically, the guide rod 31 can push the vehicle body to deviate and reduce the damage to the vehicle body. In the case of a head-on collision, the energy of the collision is transmitted to the leaf spring 32, which can vibrate and rub against each other, thereby reducing the damage to the frame caused by the collision.

[0034] Example 2

[0035] Reference Figure 4 Embodiment 2 is basically the same as embodiment 1, except that a widening member 16 is further welded to the first connecting member 111, and the width of the widening member 16 is less than or equal to the width of the truck bed, thereby reducing the driver's misjudgment of the lateral width during driving and operation, improving the accuracy and safety of driving control, and at the same time, changing the layout of the traditional tricycle cab, which is narrow in front and wide in the back, increasing the usable area of ​​the tricycle cab, so that the space in the cab can be retained and utilized to the greatest extent, increasing the actual area of ​​the cab.

[0036] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that the technical means for solving the problems in the above-mentioned embodiments of the utility model can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, several deformations and improvements can be made without departing from the technical solution of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Dump truck frame assembly, characterized by: The vehicle comprises a frame assembly, which comprises a front axle and a rear axle, wherein the rear axle comprises a longitudinal beam and at least two cross beams, wherein the longitudinal beam comprises a side beam and a mounting beam, wherein the side beam is provided with a bucket mounting hole away from the front axle end, wherein the cross beam is fixedly arranged between the side beams and is perpendicular to the side beams, wherein the mounting beam is fixedly arranged between adjacent cross beams, wherein a hydraulic cylinder hinge position is arranged on the mounting beam, and the spacing between the hinge position and the cross beam is 0.8-1.0 times of the stroke of the hydraulic cylinder hinged at the hinge position.

2. The dump truck frame assembly according to claim 1, characterized in that: The front bridge includes a faucet installation position and a curved beam, a first connecting member is fixedly arranged between the faucet installation position and the curved beam, the first connecting member is vertically arranged on the curved beam, and the angle between the axis of the faucet installation position and the center line of the first connecting member is 18-25°.

3. The dump truck frame assembly according to claim 2, characterized in that: The curved beam also includes a connection portion fixedly connected to the side beam, and the angle between the center line of the connection portion and the center line of the side beam is 60±3°.

4. The dump truck frame assembly according to claim 3, characterized in that: A second connecting member is also provided on the side beam, and a battery mounting plate is fixed on the second connecting member.

5. The dump truck frame assembly according to claim 2, characterized in that: It also includes a safety component, which includes a guide rod, one end of which is fixedly connected to the curved beam, and the other end of which extends toward the rear axle and away from the frame, and the vertical line of the farthest end of the guide rod coincides with the sideline of the truck bed.

6. The dump truck frame assembly according to claim 5, characterized in that: A third connecting member is fixedly arranged between the guide rod and the curved beam.

7. The dump truck frame assembly according to claim 6, characterized in that: The safety component also includes a leaf spring, which is fixedly arranged on the first connecting member.

8. The dump truck frame assembly according to claim 7, characterized in that: It also includes a truck bucket and a widening member. The truck bucket is hingedly mounted on the truck bucket mounting hole. The widening member is fixed on the first connecting member. The length of the widening member is ≤ the width of the truck bucket.

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