Lateral turning slag discharging vehicle

Abstract

The utility model relates to the technical field of dump trucks, in particular to a side-turning slag discharging truck. The side-turning slag discharging vehicle comprises a chassis and a slag hopper, the slag hopper is provided with a top opening for loading and unloading slag, turning supporting seats are arranged on the chassis and located on the front side and the rear side of the slag hopper respectively, rotating shafts are arranged on the front side face and the rear side face of the slag hopper respectively and rotatably supported at the top ends of the corresponding turning supporting seats, and a turning driving device used for driving the slag hopper to turn is arranged on the chassis. The slag hopper is provided with a slag loading position with an upward top opening and a slag unloading position with a downward top opening in the overturning stroke of the slag hopper, the overturning supporting seat has a set height relative to the upper surface of the chassis and supports the middle of the slag hopper in the height direction, and wheels of the chassis provide support in the overturning process of the slag hopper so as to prevent the side overturning slag catching vehicle from overturning. Extra telescopic supporting legs are not needed for supporting, operation is convenient, and slag conveying operation efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of dump truck technology, specifically to a side-tipping dump truck. Background Technology

[0002] During tunnel excavation, a large amount of excavated soil is generated that needs to be transported outside the tunnel. Excavated soil transportation is mainly carried out by locomotives pulling excavator trucks to transport the excavated soil from inside the tunnel to outside.

[0003] Chinese utility model patent CN221166588U discloses a side-tipping slag tanker truck, including a rear frame. A slag tank is installed on the top of the rear frame. During transportation, the slag tank needs to be placed on the rear frame. Side-tipping devices are installed on the front and rear sides of the slag tank. The side-tipping devices are installed on the top of the rear frame and are driven by hydraulic cylinders to flip the slag tank to a certain angle to realize the slag dumping function. Telescopic outriggers are installed at the bottom of the rear frame. The telescopic outriggers retract when the vehicle is moving and extend when dumping the tank. The hydraulic cylinders support the ground to provide stable support for the slag tanker truck and prevent the vehicle from overturning.

[0004] The aforementioned slag truck's slag bin, or slag hopper, rotates around a corner at its bottom. When the top opening of the slag hopper faces downwards, the entire slag hopper is suspended on one side of the chassis frame. At this point, the chassis provides minimal support for the slag hopper. Therefore, the aforementioned slag truck is also equipped with telescopic outriggers. These outriggers extend from one side of the chassis width and support the slag hopper on the ground to balance its weight and prevent the vehicle from tipping over. However, this type of slag truck requires extending and retracting the outriggers during unloading, which is cumbersome and affects slag transportation efficiency. Furthermore, the telescopic outriggers occupy some side space of the slag truck, making them unsuitable for situations where space is limited on one side of the tunnel track. Utility Model Content

[0005] The purpose of this utility model is to provide a side-tipping slag truck to solve the problem that the current slag truck structure, which uses one corner of the bottom as a fulcrum for tipping over, requires telescopic outriggers for support, making operation cumbersome.

[0006] The technical solution of this utility model for the side-tipping slag truck is:

[0007] A side-tipping slag car includes a chassis and a slag hopper. The slag hopper has a top opening for loading and unloading slag. The chassis is provided with tilting support seats on the front and rear sides of the slag hopper. The front and rear sides of the slag hopper are provided with rotating shafts, which are rotatably supported on the top of the corresponding tilting support seats. The chassis is equipped with a tilting drive device for driving the slag hopper to tilt. The slag hopper has a loading position with the top opening facing upward and a unloading position with the top opening tilted downward during its tilting stroke. The tilting support seats have a set height relative to the upper surface of the chassis and provide support for the middle part of the slag hopper in the height direction. During the tilting process of the slag hopper, the wheels of the chassis provide support to prevent the side-tipping slag car from overturning.

[0008] Furthermore, the position of the pivot is such that the center of gravity of the slag hopper is always directly above the area between the left and right wheels of the chassis during the slag hopper's tilting process.

[0009] Furthermore, the rotating shaft is positioned to one side of the centerline in the width direction of the slag hopper.

[0010] Furthermore, the bottom of the slag hopper is provided with a narrowing section whose width gradually decreases along the top-to-bottom direction.

[0011] Furthermore, when the slag hopper is in the slag loading position, the bottom surface of the slag hopper is directly opposite the upper surface of the chassis, and after the slag material is loaded, the bottom surface of the slag hopper is supported on the chassis.

[0012] Furthermore, the chassis is equipped with a wheel set for rolling support on the tunnel track, and the chassis has an upward arch platform. The wheel set is located below the arch platform, and the slag bucket is spaced apart from the arch platform so that the slag bucket can rotate relative to the chassis.

[0013] Furthermore, when the slag hopper is in the slag discharge position, the side where the top opening is located is the slag discharge side, and the tilting drive device is set on the side of the tilting support opposite to the slag discharge side.

[0014] Furthermore, the tilting drive device is a multi-stage hydraulic cylinder, with both ends of the multi-stage hydraulic cylinder hinged to the slag hopper and the chassis, respectively.

[0015] Furthermore, when the slag hopper is in the slag discharge position, the height of the rotating shaft is greater than the height of the multi-stage hydraulic cylinder at the hinge position with the slag hopper.

[0016] Furthermore, the tilting drive device includes a power source and a gear set. The slag hopper is provided with a gear ring that meshes with the output gear of the gear set, so that the slag hopper can be tilted by the gear set meshing with the gear ring under the drive of the power source.

[0017] Beneficial effects: This utility model modifies the elements of the existing slag truck by installing a tilting support seat with a set height on the chassis and a rotating shaft on the front and rear sides of the slag hopper. The rotating shaft is rotatably supported on the tilting support seat and is located in the middle of the height direction of the slag hopper. This allows the tilting support seat to provide support for the middle of the height direction of the slag hopper. When the slag hopper is tilted relative to the chassis by the tilting drive device, the slag hopper tilts from the loading position with the top opening facing upwards to the unloading position with the top opening tilted downwards around the rotating shaft, thereby realizing the unloading of slag to one side of the width direction of the slag truck. During this process, part of the slag hopper is always above the chassis, which is beneficial to the chassis bearing the force. The chassis wheels provide support during the tilting of the slag hopper to prevent the slag truck from tipping over. No additional telescopic outriggers are needed for support, which is convenient to operate and helps to improve the efficiency of slag transportation. Moreover, it does not require additional ground on the side of the slag truck, saving working space. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the side-tipping slag-catching truck of this utility model;

[0019] Figure 2 for Figure 1 A side view of a slag truck in the slag hopper when it is in the slag loading position;

[0020] Figure 3 for Figure 1 A schematic diagram of a slag truck in the slag hopper position when it is unloading slag.

[0021] Figure 4 This is a schematic diagram of the slag hopper in the slag loading position in Embodiment 2 of the side-tipping slag truck of this utility model;

[0022] Figure 5 for Figure 4 A schematic diagram showing the slag hopper in the slag discharge position.

[0023] In the diagram: 1. Chassis; 11. Wheel assembly; 12. Arch platform; 2. Slag hopper; 21. Top opening; 22. Bottom angle; 3. Tilting support base; 4. Shaft; 5. Tilting cylinder; 6. Quick coupling;

[0024] 201. Gear ring; 202. Gear one; 203. Gear two; 204. Gear three; 300. Track. Detailed Implementation

[0025] The basic concept of this utility model of a side-tipping slag truck is to raise the rotational support height of the slag bucket relative to the chassis, forming support for the middle part of the slag bucket in the height direction, so that a part of the slag bucket is always above the chassis during the tilting process, improving the center of gravity position of the slag bucket, so that the chassis wheels can provide support force, eliminating the need for additional telescopic outriggers, facilitating operation, and improving the efficiency of slag transportation.

[0026] The technical solution of this utility model will be described in detail below with reference to specific embodiments.

[0027] Example 1 of the side-tipping slag truck of this utility model:

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, the side-tipping slag car includes a chassis 1 and a slag hopper 2. The width of the slag car is horizontal, the height is vertical, and the length is front-to-back. The slag hopper 2 has a top opening 21 for loading and unloading slag. The four sides (front, back, left, right) and the bottom of the slag hopper 2 are closed. The chassis 1 has tilting support seats 3 on the front and rear sides of the slag hopper 2. The bottom of the tilting support seats 3 is fixed to the upper surface of the chassis 1. The front and rear sides of the slag hopper 2 are respectively equipped with rotating shafts 4. The two rotating shafts 4 are rotatably supported on the top of the two tilting support seats 3. The chassis 1 is equipped with a tilting drive device for tilting the slag hopper 2. During its tilting stroke, the slag hopper 2 has a loading position with the top opening 21 facing upward and a unloading position with the top opening 21 tilted downward. The tilting support seats 3 have a set height relative to the upper surface of the chassis 1 and provide support for the middle part of the slag hopper 2 in the height direction. During the tilting process, the wheels of the chassis 1 provide support to prevent the side-tipping slag car from overturning.

[0029] When the slag hopper 2 is rotated relative to the chassis 1 by the tilting drive device, the slag hopper 2 rotates from the loading position with the top opening 21 facing upwards to the unloading position with the top opening 21 tilted downwards around the pivot 4, thereby realizing the unloading of slag to one side in the width direction of the slag car. During this process, part of the slag hopper 2 is always above the chassis 1, which is beneficial for the chassis 1 to bear the force. During the tilting process, the wheels of the chassis 1 provide support to prevent the slag hopper 2 from tipping over and causing the slag car to overturn. No additional telescopic outriggers are needed for support, which is convenient to operate and helps to improve the efficiency of slag transportation. Moreover, it does not require additional ground on the side of the slag car, saving working space.

[0030] The height direction of the slag hopper 2 is consistent with its top and bottom directions. The rotating shaft 4 is located in the middle area of ​​the side of the slag hopper 2 in the front and rear directions. The rotating shaft 4 is at a distance from the side of the slag hopper 2 in the width direction, and also at a distance from the top opening 21 and the bottom surface of the slag hopper 2. The axes of the two rotating shafts 4 extend in the front and rear directions and are collinear. When the slag hopper 2 is flipped, it flips towards the width direction of the slag car with the rotating shaft 4 as the flipping center, changing from the state where the top opening 21 faces upward to the state where the top opening 21 is tilted downward. The flipping angle of the slag hopper 2 is greater than 90° and less than 180°, so that the slag hopper 2 tilts downward towards the width direction of the slag car for unloading.

[0031] The width of the slag hopper 2 is basically the same as the width of the chassis 1. The wheel track of the wheel set 11 of the chassis 1 is less than the maximum width of the chassis 1. The wheel set 11 includes the wheels. The chassis has four wheel sets, namely two wheel sets spaced apart on the front and two wheel sets spaced apart on the rear. The distance between the two wheel sets on the left and right is the wheel track of the left and right wheels of the chassis. The position of the pivot 4 ensures that the center of gravity of the slag hopper 2 is always directly above the chassis 1 during the tilting process, and is directly above the area between the left and right wheels of the chassis. During the tilting process, the projection of the center of gravity of the slag hopper in the vertical direction is always between the projections of the left and right wheels in the vertical direction, so that the center of gravity of the whole vehicle is vertically located between the left and right wheels, maintaining the relative position of the center of gravity of the slag hopper 2 and the chassis 1, so as to effectively support the slag hopper 2 using the existing width of the wheels of the chassis 1, and prevent the slag car from overturning. In other embodiments, when the slag hopper is flipped to the unloading position, the center of gravity of the slag hopper is slightly offset from the chassis. At this time, the material in the slag hopper has been basically unloaded and the load is relatively small. Under the condition that the load is mainly supported by the wheel set on one side of the chassis, the leverage force caused by the lateral deviation of the center of gravity of the slag hopper can be balanced by the weight of the chassis itself, so as to prevent the slag car from overturning.

[0032] The rotating shaft 4 is offset towards one side of the centerline in the width direction of the slag hopper 2. The rotating shaft 4 is spaced apart from the centerline in the width direction of the front and rear sides of the slag hopper 2. With the side where the top opening 21 of the slag hopper 2 is located in the unloading position as the unloading side, the rotating shaft 4 is offset towards the unloading side to facilitate unloading when the top opening 21 is tilted downwards, extending to the side of the base plate 1. In other embodiments, the rotating shaft can also be located at the center of the width direction of the front and rear sides of the slag hopper. The bottom of the slag hopper 2 has a narrowing section whose width gradually decreases along the top-to-bottom direction. There are narrowing sections at both the left and right corners of the bottom of the slag hopper 2. In this embodiment, the narrowing section is a bottom bevel 22; in other embodiments, it can also be a rounded corner structure. The narrowing section gradually narrows from the side to the bottom surface in the width direction of the slag hopper 2, which reduces the area of ​​the bottom plane of the slag hopper 2, preventing interference between the bottom plane of the slag hopper 2 and the base plate 1 when the slag hopper 2 is tilted. It also lowers the center of gravity of the slag hopper 2, allowing the slag hopper 2 to be as close as possible to the upper surface of the base plate 1. In other embodiments, if the gap between the slag hopper and the base plate is large enough, the bottom bevel may not be provided.

[0033] When slag hopper 2 is in the slag loading position, the top opening 21 faces horizontally upwards, and the bottom surface of slag hopper 2 is vertically aligned with the upper surface of the base plate 1. After slag is loaded, the bottom surface of slag hopper 2 rests on the base plate 1. The gap between the bottom surface of slag hopper 2 and the upper surface of base plate 1 is relatively small, so when slag hopper 2 tilts, the bottom surface of slag hopper 2 will directly leave the base plate 1 without interference. After the slag is loaded, slag hopper 2 will undergo slight deformation due to the load of the slag. Because the gap between slag hopper 2 and base plate 1 is very small, it can be directly supported downwards on base plate 1. Base plate 1 can bear the load, avoiding the risk of easy damage to the tilt support 3 and the rotating shaft 4 bearing the load alone, thus ensuring reliable use.

[0034] This muck truck is used for transporting tunnel excavated soil, which is transported from inside the tunnel to outside by a locomotive. Tracks are laid inside the tunnel. The chassis 1 of the muck truck is equipped with wheel sets 11 for rolling support on the tunnel tracks. The chassis 1 has an upward-arched platform 12, with the wheel sets 11 located below the platform 12. The platform 12 provides installation space for the wheel sets 11 and allows for a lower ground clearance in areas of the chassis 1 other than the platform 12. The bottom of the hopper 2 has a recessed space to avoid the platform 12, and the hopper 2 is spaced apart from the platform 12, ensuring that the hopper 2 can rotate relative to the chassis 1. The gap between the area of ​​the bottom of the hopper 2 outside the recessed space and the corresponding upper surface of the chassis 1 is very small, so that after the excavated soil is loaded, the relatively large upper surface of the chassis 1 directly supports the hopper 2.

[0035] In this embodiment, the tilting drive device is a tilting cylinder 5, which is a multi-stage hydraulic cylinder. Both ends of the tilting cylinder 5 are hinged to the slag hopper 2 and the chassis 1, respectively, so that the tilting cylinder 5 adjusts the posture of the slag hopper 2 as it extends and retracts to tilt it. The tilting support 3 is located on the upper surface of the chassis 1, biased towards the slag discharge side. The tilting drive device is located on the side of the tilting support 3 opposite to the slag discharge side. The tilting cylinder 5 is located on one side of the slag hopper 2 in the front-rear direction. The end of the piston rod of the tilting cylinder 5 forms a hinge structure with the corresponding part of the side of the slag hopper 2 in the front-rear direction. The bottom of the cylinder body of the tilting cylinder 5 forms a hinge structure with the side edge of the chassis 1 away from the tilting support 3. The hinge position between the tilting cylinder 5 and the slag hopper 2 is located on the side opposite to the rotating shaft 4, which is the center line of the width direction of the slag hopper 2. The hinge position between the tilting cylinder 5 and the slag hopper 2 is lower than the rotating shaft 4. When the slag hopper is in the slag discharge position, the height of the rotating shaft is greater than the height of the hinge position between the multi-stage hydraulic cylinder and the slag hopper, so as to adapt to the support height of the slag hopper and the installation position of the multi-stage hydraulic cylinder, and ensure that the extension and retraction stroke of the multi-stage hydraulic cylinder meets the tilting stroke of the slag hopper.

[0036] The tilting cylinder 5 is arranged at an angle so that when the slag hopper 2 tilts to the slag discharge position, the tilting cylinder 5 will not interfere with the rotating shaft 4 and the tilting support 3. The tilting cylinder 5 is located on the side of the rotating shaft 4 facing away from the top opening 21. Using a multi-stage hydraulic cylinder as the tilting drive device can save the space required to arrange the tilting cylinder 5 and adapt to the tilting stroke of the slag hopper 2. In other embodiments, a single-stage or two-stage hydraulic cylinder can also be used while meeting the tilting stroke requirements of the slag hopper.

[0037] The tilting cylinder 5 lifts the slag hopper 2 around the top of the tilting support 3 to tilt and dump the slag. A balance valve is installed on the tilting cylinder 5 to ensure stable operation of the slag hopper 2 during the tilting process. The tilting cylinder 5 is supplied with oil and controlled by a hydraulic pump station placed on the ground. The ground hydraulic pump station is connected to the chassis frame via a quick connector 6, and the chassis has corresponding hydraulic lines connected to the hydraulic cylinder. Multiple slag cars can share one hydraulic pump station. The slag car tilting can be achieved by operating the reversing valve on the pump station, saving costs, and the multi-stage cylinder tilting speed is relatively fast and efficient.

[0038] To ensure no leakage of excavated soil during transportation, the slag hopper of the slag truck is constructed from a single welded steel plate, with the opening facing upwards and no side or bottom doors. Because the hopper is a single, seamless unit, no leakage of excavated soil is guaranteed during transport, preventing soil contamination of the tunnel lining segments. This slag truck features top-discharge, leak-proof operation, high efficiency, small footprint, low cost, and promising application prospects.

[0039] Embodiment 2 of the side-tipping slag truck of this utility model:

[0040] The difference between the side-tipping muck car in this embodiment and the side-tipping muck car in the above embodiments lies in the tilting drive device, such as... Figure 4 , Figure 5 As shown, the tilting drive device includes a power source and a gear set. The slag hopper 2 is provided with a gear ring 201 that meshes with the output gear of the gear set, so that the slag hopper 2 can be tilted by the gear set meshing with the gear ring 201 under the drive of the power source.

[0041] The slag hopper 2 is rotatably supported on the tilting support seat 3, which is fixed to the chassis 1. The wheel set 11 of the chassis 1 is rolled on the track 300. The power source can be a hydraulic motor or an electric motor, which is fixed to the chassis 1. The gear set includes gear one 202, gear two 203, and gear three 204. The gear ring 201 is fixed to the slag hopper 2. Gear rings 201 are provided on both the front and rear sides of the slag hopper 2. Correspondingly, tilting drive devices are provided on both the front and rear sides of the slag hopper 2. Gear one 202, gear two 203, and gear three 204 are combined into a reducer and fixed to the chassis 1. The figure is only schematic, and the corresponding fixed installation structure is a conventional structure. The diameter of gear one 202 is smaller than that of gear two 203, the diameter of gear two 203 is larger than that of gear three 204, and the diameter of gear three 204 is smaller than the diameter of the circle containing the gear ring 201. Gear three 204 is the output gear. Gear 1 202 is driven by a hydraulic motor or electric motor, and then through gear 2 203 and gear 3 204, after two-stage reduction, it drives the gear ring 201 to rotate the slag hopper 2 for side-tipping and slag dumping.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A side-tipping dump truck, characterized in that, The system includes a chassis and a slag hopper. The slag hopper has a top opening for loading and unloading slag. The chassis has tilting support seats on the front and rear sides of the slag hopper. The front and rear sides of the slag hopper are each equipped with a rotating shaft. The rotating shaft is supported on the top of the corresponding tilting support seat. The chassis is equipped with a tilting drive device for tilting the slag hopper. During its tilting stroke, the slag hopper has a loading position with the top opening facing upwards and a unloading position with the top opening tilted downwards. The tilting support seat has a set height relative to the upper surface of the chassis and provides support for the middle of the slag hopper in the height direction. During the tilting process, the chassis wheels provide support to prevent the slag hopper from tipping over.

2. The side-tipping muck truck according to claim 1, characterized in that, The position of the pivot is such that the center of gravity of the slag hopper is always directly above the area between the left and right wheels of the chassis during the slag hopper's tilting process.

3. The side-tipping muck truck according to claim 1 or 2, characterized in that, The rotating shaft is positioned to one side of the centerline in the width direction of the slag hopper.

4. The side-tipping muck truck according to claim 1 or 2, characterized in that, The bottom of the slag hopper has a narrowing section whose width gradually decreases along the top-to-bottom direction.

5. The side-tipping muck truck according to claim 1 or 2, characterized in that, When the slag hopper is in the slag loading position, the bottom surface of the slag hopper is aligned with the upper surface of the chassis, and the bottom surface of the slag hopper is supported on the chassis after the slag material is loaded.

6. The side-tipping muck truck according to claim 1 or 2, characterized in that, The chassis is equipped with a wheel set for rolling support on the tunnel track. The chassis has an upward arch platform, the wheel set is located below the arch platform, and the slag bucket is spaced apart from the arch platform so that the slag bucket can rotate relative to the chassis.

7. The side-tipping muck truck according to claim 1 or 2, characterized in that, When the slag hopper is in the slag discharge position, the side with the top opening is the slag discharge side, and the tilting drive device is set on the side of the tilting support opposite to the slag discharge side.

8. The side-tipping muck truck according to claim 1 or 2, characterized in that, The tilting drive device is a multi-stage hydraulic cylinder, with its two ends hinged to the slag hopper and the chassis, respectively.

9. The side-tipping muck truck according to claim 8, characterized in that, When the slag hopper is in the slag discharge position, the height of the rotating shaft is greater than the height of the multi-stage hydraulic cylinder at the hinge position with the slag hopper.

10. The side-tipping muck truck according to claim 1 or 2, characterized in that it tilts... The drive unit includes a power source and a gear set. The slag hopper is equipped with a gear ring that meshes with the output gear of the gear set, so that the slag hopper can be rotated by the gear set meshing with the gear ring under the drive of the power source.

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