Hydraulic lifting electric device of new energy dump trailer

Abstract

The invention discloses a hydraulic lifting electric device of a new energy dump trailer, and relates to the technical field of new energy dump trailers. When the hydraulic lifting electric device works, a jacking hydraulic rod is started to jack up a dump truck box, the dump truck box rotates at the hinged position of the dump truck box and a truck box underframe, and the dump truck box drives a supporting hydraulic rod to move while rotating; the angle between the supporting hydraulic rod and the bottom end face of the dumper box changes from zero degree in the moving process, when the angle changes, the first induction module is powered on, the push-pull hydraulic rod pushes one end of the supporting hydraulic rod to the tail end of the bottom frame of the dumper box, and when the angle is 90 degrees, the first induction module is powered off, and the push-pull hydraulic rod stops working; when the angle is larger than 90 degrees, the second induction module is powered on, the push-pull hydraulic rod pulls one end of the supporting hydraulic rod back to the top end of the carriage bottom frame till the angle between the supporting hydraulic rod and the bottom end face of the dumper box is 90 degrees in the movement process, the second induction module is powered off, and the push-pull hydraulic rod stops working.

Description

Technical Field

[0001] The invention relates to the technical field of new energy dump trailers, in particular to a hydraulic lifting electric device for a new energy dump trailer. Background Art

[0002] As the country's requirements for energy conservation and emission reduction continue to increase, more and more new energy vehicles are beginning to appear in cities. As a vital means of transportation in urban construction, the demand for new energy dump trucks is also growing. At present, most of the new energy dump trucks on the market use multiple hydraulic rods to lift the dump truck box during the unloading process. During the lifting process, the axis of the force direction of most hydraulic rods does not coincide with the output axis of the hydraulic rod, and there is an angle deviation, which greatly reduces the service life of the hydraulic rod and increases the maintenance cost of the equipment. For this reason, we need a new energy dump trailer hydraulic lifting electric device to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a new energy dump trailer hydraulic lifting electric device to solve the problems raised in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions: The hydraulic lifting electric device is arranged on a dump trailer, which includes a dump truck box and a truck box chassis. The hydraulic lifting electric device includes a lifting hydraulic rod, a push-pull hydraulic rod, a supporting hydraulic rod, a first sensing module and a second sensing module. One end of the dump truck box is hinged to the tail end of the truck box chassis, the other end of the dump truck box is hinged to the output end of the lifting hydraulic rod, the other end of the lifting hydraulic rod is hinged to the front end of the truck box chassis, an axial symmetry plane of the dump truck box, the truck box chassis and the lifting hydraulic rod coincides, the push-pull hydraulic rod is arranged in the truck box chassis, the output end of the push-pull hydraulic rod is hinged to one end of the supporting hydraulic rod, the output direction of the push-pull hydraulic rod is from the top of the truck box chassis to the tail end, the output end of the supporting hydraulic rod is hinged to the bottom end of the dump truck box, the first sensing module is fixedly connected to the bottom end of the dump truck box, the first sensing module is electrically connected to the push-pull hydraulic rod, the second sensing module is fixedly connected to the bottom end of the dump truck box, and the second sensing module is electrically connected to the push-pull hydraulic rod.

[0005] When the hydraulic lifting electric device is working, the jacking hydraulic rod is started to jack up the dump truck box, and the dump truck box rotates at the hinge with the truck box chassis. The rotation of the dump truck box drives the supporting hydraulic rod to move. The angle between the supporting hydraulic rod and the bottom end face of the dump truck box changes from zero degrees during the movement. When the angle changes, the first sensing module is energized, and the push-pull hydraulic rod pushes one end of the supporting hydraulic rod toward the tail end of the truck box chassis until the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is ninety degrees during the movement. The first sensing module is powered off and the push-pull hydraulic rod stops working; when the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is greater than ninety degrees during the movement of the supporting hydraulic rod, the second sensing module is energized, and the push-pull hydraulic rod pulls one end of the supporting hydraulic rod back to the top of the truck box chassis until the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is ninety degrees during the movement. The second sensing module is powered off and the push-pull hydraulic rod stops working.

[0006] Furthermore, when the angle between the supporting hydraulic rod and the bottom end surface of the dump truck box is greater than or equal to zero degrees and less than ninety degrees, part of the supporting hydraulic rod is inserted into the first sensing module.

[0007] When the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is greater than or equal to zero degrees and less than ninety degrees, part of the supporting hydraulic rod is inserted into the first sensing module, current is generated in the first sensing module, and the first sensing module sends a working signal to the push-pull hydraulic rod. The push-pull hydraulic rod pushes one end of the supporting hydraulic rod toward the tail end of the truck box frame until the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is ninety degrees during movement. The first sensing module is powered off and the push-pull hydraulic rod stops working.

[0008] Furthermore, when the angle between the supporting hydraulic rod and the bottom end surface of the dump truck box is greater than ninety degrees and less than one hundred and eighty degrees, part of the supporting hydraulic rod is inserted into the second sensing module.

[0009] When the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is greater than ninety degrees and less than one hundred and eighty degrees, part of the supporting hydraulic rod is inserted into the second sensing module, current is generated in the second sensing module, and the second sensing module sends a working signal to the push-pull hydraulic rod. The push-pull hydraulic rod pulls one end of the supporting hydraulic rod back to the top of the truck box frame until the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is ninety degrees during the movement. The second sensing module is powered off and the push-pull hydraulic rod stops working, so that when the dump truck box reaches a preset angle, the supporting hydraulic rod is always perpendicular to the bottom end face of the dump truck box, so that the axis of the direction of force on the supporting hydraulic rod coincides with the output path of the output end of the supporting hydraulic rod, thereby improving the service life of the supporting hydraulic rod.

[0010] Furthermore, a hinged protrusion is provided at the bottom end of the dump truck box, the hinged protrusion is hinged to the output end of the supporting hydraulic rod, a first sensing module is provided on one side of the hinged protrusion, and a second sensing module is provided on the other side of the hinged protrusion, and the hinged protrusion is fixedly connected to both the first sensing module and the second sensing module.

[0011] The first sensing module and the second sensing module are staggered to avoid the support hydraulic rod, the first sensing module and the second sensing module being stuck and unable to rotate during the overall operation of the device.

[0012] Furthermore, a groove is provided on the vehicle bottom frame, and two grooves are provided. The two grooves are symmetrical about the axial symmetry plane of the vehicle bottom frame, and the output end of the push-pull hydraulic rod penetrates into the groove.

[0013] The two grooves facilitate the retraction and extension of the push-pull hydraulic rod and the supporting hydraulic rod, and after being symmetrically arranged, the push-pull hydraulic rod and the supporting hydraulic rod provide more stable support to the dump truck box, avoiding rollover due to center of gravity shift.

[0014] Furthermore, a first magnetic block and a second magnetic block are respectively arranged on both sides of one end where the supporting hydraulic rod and the articulated protrusion are hinged, and the first magnetic block and the second magnetic block are both arc segments. The central axes of the first magnetic block and the second magnetic block coincide with the rotation axes of the supporting hydraulic rod and the articulated protrusion at the hinge point, and when the angle between the supporting hydraulic rod and the bottom end surface of the dump truck box is greater than or equal to zero degrees and less than ninety degrees, the first magnetic block is inserted into the first sensing module, and when the angle between the supporting hydraulic rod and the bottom end surface of the dump truck box is greater than ninety degrees and less than one hundred and eighty degrees, the second magnetic block is inserted into the second sensing module.

[0015] When the lifting hydraulic rod lifts the dump truck box, the dump truck box drives the supporting hydraulic rod to move, and the angle between the supporting hydraulic rod and the bottom end face of the dump truck box begins to gradually increase from zero. While the angle increases, the first magnetic block is inserted into the first sensing module, and current is generated in the first sensing module. The first sensing module sends a working signal to the push-pull hydraulic rod, and the output end of the push-pull hydraulic rod is pushed forward, pushing one end of the supporting hydraulic rod to approach the tail end of the truck box chassis until the angle is greater than or equal to ninety degrees, at which time the first magnetic block is pulled out of the first sensing module; when the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is greater than ninety degrees, the second magnetic block is inserted into the second sensing module, and current is generated in the second sensing module. The second sensing module sends a working signal to the push-pull hydraulic rod, and the output end of the push-pull hydraulic rod contracts, driving one end of the supporting hydraulic rod to approach the top end of the truck box chassis until the angle is less than or equal to ninety degrees, at which time the second magnetic block is pulled out of the second sensing module, realizing the adaptive adjustment of the angle between the supporting hydraulic rod and the bottom end face of the dump truck box.

[0016] Furthermore, the first induction module includes a first induction coil and a first actuator, the first induction coil is fixedly connected to one side of the hinged protrusion, the first actuator is electrically connected to the first induction coil, the first actuator and the first induction coil constitute a complete loop, the first actuator is fixedly connected to one side of the hinged protrusion, when the angle between the supporting hydraulic rod and the bottom end surface of the dump truck box is greater than or equal to zero degrees and less than ninety degrees, the first magnetic block is inserted into the first induction coil, the first actuator is electrically connected to the push-pull hydraulic rod, and the output end of the push-pull hydraulic rod is pushed forward when the first actuator is energized.

[0017] When the lifting hydraulic rod lifts the dump truck box, the dump truck box drives the supporting hydraulic rod to move, and the angle between the supporting hydraulic rod and the bottom end surface of the dump truck box begins to gradually increase from zero. As the angle increases, the first magnetic block is inserted into the first induction coil. Due to electromagnetic induction, current is generated in the first induction coil, the first actuator is energized, and the output end of the push-pull hydraulic rod is pushed forward, pushing one end of the supporting hydraulic rod toward the tail end of the truck box frame until the angle is greater than or equal to ninety degrees. At this time, the first magnetic block is pulled out of the first induction coil, the first actuator is powered off, and the push-pull hydraulic rod stops working.

[0018] Furthermore, the second induction module includes a second induction coil and a second actuator, the second induction coil is fixedly connected to the other side of the hinged protrusion, the second actuator is electrically connected to the second induction coil, the second actuator and the second induction coil form a complete loop, the second actuator is fixedly connected to the other side of the hinged protrusion, when the angle between the supporting hydraulic rod and the bottom end surface of the dump truck box is greater than ninety degrees and less than one hundred and eighty degrees, the second magnetic block is inserted into the second induction coil, the second actuator is electrically connected to the push-pull hydraulic rod, and the output end of the push-pull hydraulic rod contracts when the second actuator is energized.

[0019] When the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is greater than ninety degrees, the second magnetic block is inserted into the second induction coil. Due to electromagnetic induction, current is generated in the second induction coil, the second actuator is energized, and the output end of the push-pull hydraulic rod contracts, driving one end of the supporting hydraulic rod to approach the top of the truck box frame until the angle is less than or equal to ninety degrees. At this time, the second magnetic block is pulled out of the second induction coil, realizing adaptive adjustment of the angle between the supporting hydraulic rod and the bottom end face of the dump truck box.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. After the dump truck box reaches a preset angle, the supporting hydraulic rod is always perpendicular to the bottom end surface of the dump truck box, so that the axis of the supporting hydraulic rod force direction coincides with the output path of the output end of the supporting hydraulic rod, thereby increasing the service life of the supporting hydraulic rod; 2. When the lifting hydraulic rod of the present invention lifts the dump truck, the dump truck drives the supporting hydraulic rod to move, and the angle between the supporting hydraulic rod and the bottom end surface of the dump truck gradually increases from zero. When the angle increases, the first magnetic block is inserted into the first induction coil. Due to electromagnetic induction, current is generated in the first induction coil, the first actuator is energized, and the output end of the push-pull hydraulic rod is pushed forward, pushing one end of the supporting hydraulic rod to approach the tail end of the truck chassis until the angle is greater than or equal to ninety degrees, at which time the first magnetic block is pulled out of the first induction coil; 3. In the present invention, when the angle between the supporting hydraulic rod and the bottom end face of the dump truck box is greater than ninety degrees, the second magnetic block is inserted into the second induction coil. Due to electromagnetic induction, current is generated in the second induction coil, the second actuator is energized, the output end of the push-pull hydraulic rod contracts, and one end of the supporting hydraulic rod is driven to approach the top of the truck box frame until the angle is less than or equal to ninety degrees. At this time, the second magnetic block is pulled out of the second induction coil, thereby realizing adaptive adjustment of the angle between the supporting hydraulic rod and the bottom end face of the dump truck box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of the overall appearance of a new energy dump trailer hydraulic lifting electric device of the present invention; Figure 2 This is a structural schematic diagram of a new energy dump trailer hydraulic lifting electric device of the present invention without the dump trailer box; Figure 3 It is a structural schematic diagram of a new energy dump trailer hydraulic lifting electric device of the present invention when the included angle between the supporting hydraulic rod and the bottom end surface of the dump truck box is 90 degrees; Figure 4 It is a structural schematic diagram of a first sensing module and a second sensing module of a hydraulic lifting electric device for a new energy dump trailer of the present invention; Figure 5 for Figure 1 A partial enlarged schematic diagram of B; Figure 6 for Figure 2 A schematic diagram of a local A enlargement; Figure 7 for Figure 3 A local C enlarged schematic diagram; Figure 8 This is a partial structural schematic diagram of a new energy dump trailer hydraulic lifting electric device of the present invention when the angle between the supporting hydraulic rod and the bottom end surface of the dump trailer box is greater than ninety degrees.

[0022] In the figure: 1. dump truck box; 2. truck box chassis; 3. lifting hydraulic rod; 4. push-pull hydraulic rod; 5. supporting hydraulic rod; 6. first sensing module; 7. second sensing module; 11. hinged protrusion; 21. groove; 51. first magnetic block; 52. second magnetic block; 61. first induction coil; 62. first actuator; 71. second induction coil; 72. second actuator. DETAILED DESCRIPTION

[0023] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0024] Example: Figure 1 - Figure 8 As shown, the present invention provides a technical solution for a hydraulic lifting electric device for a new energy dump trailer: like Figure 1 to Figure 4 As shown, the hydraulic lifting electric device is arranged on a dump trailer, the dump trailer comprises a dump truck box 1 and a truck box chassis 2, the hydraulic lifting electric device comprises a lifting hydraulic rod 3, a push-pull hydraulic rod 4, a support hydraulic rod 5, a first sensing module 6 and a second sensing module 7, one end of the dump truck box 1 is hinged to the rear end of the truck box chassis 2, the other end of the dump truck box 1 is hinged to the output end of the lifting hydraulic rod 3, the other end of the lifting hydraulic rod 3 is hinged to the front end of the truck box chassis 2, and one axis of the dump truck box 1, the truck box chassis 2 and the lifting hydraulic rod 3 is hinged. The weighing surfaces coincide, the push-pull hydraulic rod 4 is arranged in the car body bottom frame 2, the output end of the push-pull hydraulic rod 4 is hinged to one end of the supporting hydraulic rod 5, the output direction of the push-pull hydraulic rod 4 is from the top end of the car body bottom frame 2 to the tail end, the output end of the supporting hydraulic rod 5 is hinged to the bottom end of the dump truck body 1, the first sensing module 6 is fixedly connected to the bottom end of the dump truck body 1, the first sensing module 6 is electrically connected to the push-pull hydraulic rod 4, the second sensing module 7 is fixedly connected to the bottom end of the dump truck body 1, and the second sensing module 7 is electrically connected to the push-pull hydraulic rod 4.

[0025] When the hydraulic lifting electric device is working, the lifting hydraulic rod 3 is started to lift the dump truck box 1, and the dump truck box 1 rotates at the hinge with the truck box bottom frame 2. The dump truck box 1 rotates while driving the supporting hydraulic rod 5 to move. During the movement of the supporting hydraulic rod 5, the angle with the bottom end face of the dump truck box 1 starts to change from zero degrees. When the angle changes, the first sensing module 6 is energized, and the push-pull hydraulic rod 4 pushes one end of the supporting hydraulic rod 5 toward the tail end of the truck box bottom frame 2 until the angle with the bottom end face of the dump truck box 1 during the movement is ninety degrees. The first sensing module 6 is powered off, and the push-pull hydraulic rod 4 stops working; when the angle with the bottom end face of the dump truck box 1 during the movement of the supporting hydraulic rod 5 is greater than ninety degrees, the second sensing module 7 is energized, and the push-pull hydraulic rod 4 pulls one end of the supporting hydraulic rod 5 back to the top of the truck box bottom frame 2 until the angle with the bottom end face of the dump truck box 1 during the movement is ninety degrees. The second sensing module 7 is powered off, and the push-pull hydraulic rod 4 stops working.

[0026] like Figure 5 As shown, when the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than or equal to zero and less than ninety degrees, part of the supporting hydraulic rod 5 is inserted into the first sensing module 6 .

[0027] When the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than or equal to zero degrees and less than ninety degrees, part of the supporting hydraulic rod 5 is inserted into the first sensing module 6, and current is generated in the first sensing module 6. The first sensing module 6 sends a working signal to the push-pull hydraulic rod 4, and the push-pull hydraulic rod 4 pushes one end of the supporting hydraulic rod 5 toward the tail end of the truck box frame 2 until the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is ninety degrees during the movement. The first sensing module 6 is powered off and the push-pull hydraulic rod 4 stops working.

[0028] like Figure 8 As shown, when the included angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than ninety degrees and less than one hundred and eighty degrees, part of the supporting hydraulic rod 5 is inserted into the second sensing module 7 .

[0029] When the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than ninety degrees and less than one hundred and eighty degrees, part of the supporting hydraulic rod 5 is inserted into the second sensing module 7, and current is generated in the second sensing module 7. The second sensing module 7 sends a working signal to the push-pull hydraulic rod 4, and the push-pull hydraulic rod 4 pulls one end of the supporting hydraulic rod 5 back to the top of the truck box bottom frame 2 until the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is ninety degrees during the movement. The second sensing module 7 is powered off and the push-pull hydraulic rod 4 stops working, so that when the dump truck box 1 reaches a preset angle, the supporting hydraulic rod 5 is always perpendicular to the bottom end surface of the dump truck box 1, so that the axis of the direction of force on the supporting hydraulic rod 5 coincides with the output path of the output end of the supporting hydraulic rod 5, thereby improving the service life of the supporting hydraulic rod 5.

[0030] like Figure 4 As shown, a hinged protrusion 11 is provided at the bottom end of the dump truck box 1, and the hinged protrusion 11 is hinged to the output end of the supporting hydraulic rod 5. A first sensing module 6 is provided on one side of the hinged protrusion 11, and a second sensing module 7 is provided on the other side of the hinged protrusion 11. The hinged protrusion 11 is fixedly connected to both the first sensing module 6 and the second sensing module 7.

[0031] The first sensing module 6 and the second sensing module 7 are staggered to avoid the supporting hydraulic rod 5 , the first sensing module 6 and the second sensing module 7 being stuck and unable to rotate during the overall operation of the device.

[0032] like Figure 2 and Figure 3 As shown, a groove 21 is provided on the vehicle bottom frame 2 , and two grooves 21 are provided. The two grooves 21 are symmetrical about the axial symmetry plane of the vehicle bottom frame 2 , and the output end of the push-pull hydraulic rod 4 penetrates into the groove 21 .

[0033] The two grooves 21 facilitate the retraction and extension of the push-pull hydraulic rod 4 and the supporting hydraulic rod 5. After being symmetrically arranged, the push-pull hydraulic rod 4 and the supporting hydraulic rod 5 provide more stable support to the dump truck box 1, thus avoiding the overturning caused by the deviation of the center of gravity.

[0034] like Figure 6 As shown, a first magnetic block 51 and a second magnetic block 52 are respectively arranged on both sides of one end where the supporting hydraulic rod 5 and the hinged protrusion 11 are hinged, and the first magnetic block 51 and the second magnetic block 52 are both arc segments. The central axes of the first magnetic block 51 and the second magnetic block 52 coincide with the rotation axis of the hinged portion of the supporting hydraulic rod 5 and the hinged protrusion 11. When the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than or equal to zero degrees and less than ninety degrees, the first magnetic block 51 is inserted into the first sensing module 6. When the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than ninety degrees and less than one hundred and eighty degrees, the second magnetic block 52 is inserted into the second sensing module 7.

[0035] When the lifting hydraulic rod 3 lifts the dump truck box 1, the dump truck box 1 drives the supporting hydraulic rod 5 to move, and the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 gradually increases from zero. As the angle increases, the first magnetic block 51 is inserted into the first sensing module 6, and current is generated in the first sensing module 6. The first sensing module 6 sends a working signal to the push-pull hydraulic rod 4, and the output end of the push-pull hydraulic rod 4 is pushed forward, pushing one end of the supporting hydraulic rod 5 to approach the tail end of the truck box bottom frame 2 until the angle is greater than or equal to ninety degrees. At this time, the first magnetic block 51 is inserted from the first sensing module 6. Module 6 is pulled out; when the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than ninety degrees, the second magnetic block 52 is inserted into the second sensing module 7, and current is generated in the second sensing module 7. The second sensing module 7 sends a working signal to the push-pull hydraulic rod 4, and the output end of the push-pull hydraulic rod 4 contracts, driving one end of the supporting hydraulic rod 5 to approach the top of the car box bottom frame 2 until the angle is less than or equal to ninety degrees. At this time, the second magnetic block 52 is pulled out from the second sensing module 7, realizing the adaptive adjustment of the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1.

[0036] like Figure 5 and Figure 7 As shown, the first induction module 6 includes a first induction coil 61 and a first actuator 62, the first induction coil 61 is fixedly connected to one side of the hinged protrusion 11, the first actuator 62 is electrically connected to the first induction coil 61, the first actuator 62 and the first induction coil 61 constitute a complete loop, the first actuator 62 is fixedly connected to one side of the hinged protrusion 11, when the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than or equal to zero degrees and less than ninety degrees, the first magnetic block 51 is inserted into the first induction coil 61, the first actuator 62 is electrically connected to the push-pull hydraulic rod 4, and the output end of the push-pull hydraulic rod 4 is pushed forward after the first actuator 62 is energized.

[0037] When the lifting hydraulic rod 3 lifts the dump truck box 1, the dump truck box 1 drives the supporting hydraulic rod 5 to move, and the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 begins to gradually increase from zero degrees. As the angle increases, the first magnetic block 51 is inserted into the first induction coil 61. Due to electromagnetic induction, current is generated in the first induction coil 61, and the first actuator 62 is energized. The output end of the push-pull hydraulic rod 4 is pushed forward, pushing one end of the supporting hydraulic rod 5 toward the rear end of the truck box frame 2 until the angle is greater than or equal to ninety degrees. At this time, the first magnetic block 51 is pulled out of the first induction coil 61, the first actuator 62 is powered off, and the push-pull hydraulic rod 4 stops working.

[0038] like Figure 7 and Figure 8As shown, the second induction module 7 includes a second induction coil 71 and a second actuator 72, the second induction coil 71 is fixedly connected to the other side of the hinged protrusion 11, the second actuator 72 is electrically connected to the second induction coil 71, the second actuator 72 and the second induction coil 71 form a complete loop, the second actuator 72 is fixedly connected to the other side of the hinged protrusion 11, when the angle between the supporting hydraulic rod 5 and the bottom end surface of the dump truck box 1 is greater than ninety degrees and less than one hundred and eighty degrees, the second magnetic block 52 is inserted into the second induction coil 71, the second actuator 72 is electrically connected to the push-pull hydraulic rod 4, and the output end of the push-pull hydraulic rod 4 contracts when the second actuator 72 is energized.

[0039] When the angle between the supporting hydraulic rod 5 and the bottom end face of the dump truck box 1 is greater than ninety degrees, the second magnetic block 52 is inserted into the second induction coil 71. Due to electromagnetic induction, current is generated in the second induction coil 71, the second actuator 72 is energized, and the output end of the push-pull hydraulic rod 4 contracts, driving one end of the supporting hydraulic rod 5 to approach the top of the truck box bottom frame 2 until the angle is less than or equal to ninety degrees. At this time, the second magnetic block 52 is pulled out of the second induction coil 71, realizing the adaptive adjustment of the angle between the supporting hydraulic rod 5 and the bottom end face of the dump truck box 1.

[0040] The working principle of the present invention is as follows: when the hydraulic lifting electric device is working, the lifting hydraulic rod 3 is started to lift the dump truck box 1, and the dump truck box 1 rotates at the hinge with the truck box bottom frame 2. The dump truck box 1 rotates while driving the supporting hydraulic rod 5 to move. During the movement of the supporting hydraulic rod 5, the angle with the bottom end face of the dump truck box 1 starts to change from zero degrees. When the angle changes, the first magnetic block 51 is inserted into the first induction coil 61. Due to electromagnetic induction, current is generated in the first induction coil 61, and the first actuator 62 is energized, pushing the output end of the push-pull hydraulic rod 4 forward, pushing one end of the supporting hydraulic rod 5 close to the tail end of the truck box bottom frame 2 until the angle is greater than or equal to ninety degrees. degrees, at this time, the first magnetic block 51 is pulled out of the first induction coil 61, the first actuator 62 is powered off, and the push-pull hydraulic rod 4 stops working; when the angle between the supporting hydraulic rod 5 and the bottom end face of the dump truck box 1 is greater than ninety degrees during movement, the second magnetic block 52 is inserted into the second induction coil 71, and due to electromagnetic induction, current is generated in the second induction coil 71, the second actuator 72 is energized, and the output end of the push-pull hydraulic rod 4 contracts, driving one end of the supporting hydraulic rod 5 to approach the top of the truck box bottom frame 2 until the angle is less than or equal to ninety degrees. At this time, the second magnetic block 52 is pulled out of the second induction coil 71, the second actuator 72 is powered off, and the push-pull hydraulic rod 4 stops working.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new energy dump trailer hydraulic lifting electric device, characterized by: The hydraulic lifting electric device is arranged on a dump trailer, the dump trailer comprises a dump truck box (1) and a truck box frame (2), the hydraulic lifting electric device comprises a lifting hydraulic rod (3), a push-pull hydraulic rod (4), a support hydraulic rod (5), a first sensing module (6) and a second sensing module (7), one end of the dump truck box (1) is hinged to the rear end of the truck box frame (2), the other end of the dump truck box (1) is hinged to the output end of the lifting hydraulic rod (3), the other end of the lifting hydraulic rod (3) is hinged to the front end of the truck box frame (2), and an axis of the dump truck box (1), the truck box frame (2) and the lifting hydraulic rod (3) is hinged. The weighing surfaces overlap, the push-pull hydraulic rod (4) is arranged in the vehicle box bottom frame (2), the output end of the push-pull hydraulic rod (4) is hinged to one end of the support hydraulic rod (5), the output direction of the push-pull hydraulic rod (4) is directed from the top end of the vehicle box bottom frame (2) to the rear end, the output end of the support hydraulic rod (5) is hinged to the bottom end of the dump truck box (1), the first sensing module (6) is fixedly connected to the bottom end of the dump truck box (1), the first sensing module (6) is electrically connected to the push-pull hydraulic rod (4), the second sensing module (7) is fixedly connected to the bottom end of the dump truck box (1), and the second sensing module (7) is electrically connected to the push-pull hydraulic rod (4).

2. According to claim 1, a new energy dump trailer hydraulic lifting electric device is characterized in that: When the angle between the supporting hydraulic rod (5) and the bottom end surface of the dump truck box (1) is greater than or equal to zero degrees and less than ninety degrees, part of the supporting hydraulic rod (5) is inserted into the first sensing module (6).

3. According to claim 2, a new energy dump trailer hydraulic lifting electric device is characterized in that: When the angle between the supporting hydraulic rod (5) and the bottom end surface of the dump truck box (1) is greater than ninety degrees and less than one hundred and eighty degrees, part of the supporting hydraulic rod (5) is inserted into the second sensing module (7).

4. According to claim 3, a new energy dump trailer hydraulic lifting electric device is characterized in that: A hinged protrusion (11) is provided at the bottom end of the dump truck box (1); the hinged protrusion (11) is hinged to the output end of the supporting hydraulic rod (5); a first sensing module (6) is provided on one side of the hinged protrusion (11); a second sensing module (7) is provided on the other side of the hinged protrusion (11); and the hinged protrusion (11) is fixedly connected to both the first sensing module (6) and the second sensing module (7).

5. According to claim 4, a new energy dump trailer hydraulic lifting electric device is characterized in that: The vehicle box bottom frame (2) is provided with a groove (21), and two grooves (21) are provided. The two grooves (21) are symmetrical about the axial symmetry plane of the vehicle box bottom frame (2), and the output end of the push-pull hydraulic rod (4) penetrates into the groove (21).

6. The hydraulic lifting electric device for a new energy dump trailer according to claim 5 is characterized in that: A first magnetic block (51) and a second magnetic block (52) are respectively arranged on both sides of one end where the supporting hydraulic rod (5) and the hinged protrusion (11) are hinged, the first magnetic block (51) and the second magnetic block (52) are both arc segments, the central axes of the first magnetic block (51) and the second magnetic block (52) coincide with the rotation axis of the hinged portion of the supporting hydraulic rod (5) and the hinged protrusion (11), when the angle between the supporting hydraulic rod (5) and the bottom end surface of the dump truck box (1) is greater than or equal to zero degrees and less than ninety degrees, the first magnetic block (51) is inserted into the first sensing module (6), and when the angle between the supporting hydraulic rod (5) and the bottom end surface of the dump truck box (1) is greater than ninety degrees and less than one hundred and eighty degrees, the second magnetic block (52) is inserted into the second sensing module (7).

7. The hydraulic lifting electric device for a new energy dump trailer according to claim 6 is characterized in that: The first induction module (6) comprises a first induction coil (61) and a first actuator (62); the first induction coil (61) is fixedly connected to one side of the hinged protrusion (11); the first actuator (62) is electrically connected to the first induction coil (61); the first actuator (62) and the first induction coil (61) form a complete loop; the first actuator (62) is fixedly connected to one side of the hinged protrusion (11); when the angle between the supporting hydraulic rod (5) and the bottom end surface of the dump truck box (1) is greater than or equal to zero degrees and less than ninety degrees, the first magnetic block (51) is inserted into the first induction coil (61); the first actuator (62) is electrically connected to the push-pull hydraulic rod (4); and when the first actuator (62) is energized, the output end of the push-pull hydraulic rod (4) is pushed forward.

8. The hydraulic lifting electric device for a new energy dump trailer according to claim 7 is characterized in that: The second induction module (7) comprises a second induction coil (71) and a second actuator (72); the second induction coil (71) is fixedly connected to the other side of the hinged protrusion (11); the second actuator (72) is electrically connected to the second induction coil (71); the second actuator (72) and the second induction coil (71) form a complete circuit; the second actuator (72) is fixedly connected to the other side of the hinged protrusion (11); when the angle between the supporting hydraulic rod (5) and the bottom end surface of the dump truck box (1) is greater than ninety degrees and less than one hundred and eighty degrees, the second magnetic block (52) is inserted into the second induction coil (71); the second actuator (72) is electrically connected to the push-pull hydraulic rod (4); and when the second actuator (72) is energized, the output end of the push-pull hydraulic rod (4) contracts.

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