Frame structure of self-discharging type framework semitrailer

Abstract

The invention discloses a frame structure of a self-unloading skeleton semitrailer, which mainly relates to the technical field of new energy whole vehicle manufacturing, and comprises a base, a vehicle frame is hinged on the base through a hydraulic cylinder assembly, a new energy battery is mounted at the bottom of the vehicle frame, the vehicle frame is fixedly connected with an outer frame, and an inner frame plate is rotatably arranged at the bottom of the outer frame; a connecting rod assembly is further arranged between the inner frame plate and the base, and a left trolley plate, a right trolley plate and a trolley rear plate are arranged in the three directions of the trolley frame respectively. The frame mechanism is combined with new energy, the function of unloading in multiple directions is achieved, and using is more convenient.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of new energy vehicle manufacturing, and in particular to a frame structure of a dump-type skeleton semi-trailer. Background Art

[0002] Nowadays, most semi-trailer loading and unloading trucks also use new energy for energy supply. This function reduces pollution while meeting the transportation needs. As a result, various new energy vehicles are emerging in an endless stream, and new energy vehicle manufacturing has become a hot industry. However, the current new energy loading trucks are still relatively traditional and have certain defects. For example, in terms of truck unloading, manual unloading and automatic unloading are generally used, and the general structure of automatic unloading is divided into two situations: side unloading and tail unloading, which are used separately. When faced with unloading needs at different positions, the driver needs to reverse repeatedly to adjust the position, which invisibly increases the processing time and thus reduces the unloading efficiency. In addition, the angle of the truck bed cannot be adjusted during unloading. Therefore, an overall frame structure is needed to solve the above problems. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the above-mentioned problems, the present invention needs to provide a self-unloading skeleton semi-trailer frame structure, which can have the function of unloading in multiple directions to meet different needs.

[0005] (II) Technical solution

[0006] In view of the above technical problems, the present invention provides a frame structure of a dump-type skeletal semi-trailer, including a base, a vehicle frame hinged on the base by a hydraulic cylinder assembly, a new energy battery installed at the bottom of the vehicle frame, an outer frame fixedly connected to the vehicle frame, an inner frame plate rotatably connected to the outer frame, the inner frame plate and the base are rotatably connected by a connecting rod assembly, a left vehicle plate and a right vehicle plate rotatably installed on the vehicle frame, and a rear vehicle plate rotatably arranged between the left vehicle plate and the right vehicle plate.

[0007] Furthermore, an articulated seat is arranged between the vehicle frame and the hydraulic cylinder assembly, and the articulated seat includes a first flat foot seat and a first spherical foot seat, the first flat foot seat is fixedly mounted on the vehicle frame, and a first one-way adapter is rotatably connected to the first flat foot seat; the first spherical foot seat is fixedly mounted on the vehicle frame, and a first round head adapter is rotatably connected to the first spherical foot seat, and the first spherical foot seat is axially symmetrical with the first flat foot seat; the articulated seat also includes a second spherical foot seat and a second flat foot seat, the second spherical foot seat is fixedly mounted on the vehicle frame, and a second round head adapter is rotatably arranged on the second spherical foot seat, the second flat foot seat is fixedly mounted on the vehicle frame, and a second one-way adapter is rotatably arranged on the second flat foot seat, and the second flat foot seat is axially symmetrical with the second spherical foot seat.

[0008] Further, the hydraulic cylinder assembly includes a first left - end hydraulic cylinder and a second right - end hydraulic cylinder. One end of the first left - end hydraulic cylinder is hinged to the base, and the movable end is hinged to the first round - head adapter. One end of the second right - end hydraulic cylinder is hinged to the base, and the movable end is hinged to the second round - head adapter. The hydraulic cylinder assembly also includes a third left - end hydraulic cylinder and a fourth right - end hydraulic cylinder. One end of the third left - end hydraulic cylinder is hinged to the base, and the movable end is hinged to the first one - way adapter. One end of the fourth right - end hydraulic cylinder is hinged to the base, and the movable end is hinged to the second one - way adapter. The first left - end hydraulic cylinder, the second right - end hydraulic cylinder, the third left - end hydraulic cylinder, and the fourth right - end hydraulic cylinder are powered by a new - energy battery.

[0009] Further, one end of the inner frame plate close to the first one - way adapter is rotatably installed on the outer frame, at one end of the hinge point of the outer frame, and the end in contact with the inner frame plate is an arc - shaped surface. The link assembly is arranged on the side of the inner frame plate close to the base.

[0010] Further, the link assembly includes a first auxiliary lower link and a side link. One end of the first auxiliary lower link is rotatably connected to the base, and the other end is rotatably connected to the auxiliary cross - bar. One end of the second auxiliary lower link is rotatably connected to the base, and the other end is rotatably connected to the auxiliary cross - bar. The auxiliary cross - bar is respectively rotatably connected with a first auxiliary upper link and a second auxiliary upper link. The first auxiliary upper link and the second auxiliary upper link are respectively rotatably connected to the inner frame plate. One end of the side link is rotatably connected to the base, and the other end is rotatably connected to the inner frame plate.

[0011] Further, the rear car plate is magnetically connected to the output shaft of the electromagnetic brake. A limiting component is also arranged between the rear car plate and the car frame. The limiting component includes a right - angled chute arranged on the car frame. An L - shaped rod is slidably arranged in the right - angled chute, and the L - shaped rod slides in the sliding frame. The sliding frame is fixedly installed on the rear car plate. The electromagnetic brake is electrically connected to the new - energy battery.

[0012] Further, the left car plate and the right car plate have the same structure. Each includes a rectangular plate. On both sides of the top of the rectangular plate, convex plates are fixedly installed respectively. On both sides of the rectangular plate, a circular shaft is fixedly installed respectively.

[0013] Further, the left car plate and the right car plate are both rotatably installed on the car frame. A middle link is rotatably connected between the convex plates on the same side of the left car plate and the right car plate. The circular shaft at the end of the left car plate far from the electromagnetic brake is fixedly connected to the output shaft of the driving motor. The driving motor is fixedly installed on the car frame. The driving motor is electrically connected to the new - energy battery.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: 1. The present invention is an overall frame mechanism in new energy vehicle manufacturing, directly installed on new energy vehicles. The required power supply is provided by the power supply system on the new energy vehicle. It has the function of unloading goods in different directions. All three unloading directions can unload according to the conditions of the unloading site without having to reverse multiple times to adjust the position. At the same time, the process is also designed with a method of automatically adjusting the angle. According to different internal loaded goods, the adjusted angle and position can also be different. 2. Specifically, the present invention is provided with a base, a hydraulic cylinder assembly, a vehicle frame, a new energy battery, and a connecting rod assembly to form an overall frame model. The base is used to be installed on the new energy vehicle, and the vehicle frame is used to load goods. The hydraulic cylinder assembly is used to adjust the vehicle frame to different angles to meet the needs of the unloading direction. 3. The vehicle frame of the present invention is provided with a left vehicle board, a right vehicle board, a rear vehicle board, and an electromagnetic brake. It is powered by the new energy battery, enabling the three vehicle boards to be opened according to specific needs to achieve the function of unloading goods in different directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the first angle structure at the bottom of the present invention.

[0017] Figure 3 It is a schematic diagram of the second angle structure at the bottom of the present invention.

[0018] Figure 4 It is a schematic diagram of the first angle of a partial view of the frame mechanism of the present invention.

[0019] Figure 5 It is a schematic diagram of the second angle of a partial view of the frame mechanism of the present invention.

[0020] Figure 6 It is a schematic diagram of the third angle of a partial view of the frame mechanism of the present invention.

[0021] Figure 7 It is a schematic diagram of the fourth angle of a partial view of the frame mechanism of the present invention.

[0022] Figure 8 It is a schematic diagram of the installation positions of the round shaft and the protruding plate of the present invention.

[0023] Figure 9 It is a schematic diagram of the base of the present invention.

[0024] Figure 10 It is a schematic diagram of the inner frame plate of the present invention.

[0025] Figure 11 It is a schematic diagram of the right-angle chute of the present invention.

[0026] Reference numerals: 1 - Frame mechanism; 101 - Base; 102 - Vehicle frame; 103 - New energy battery; 104 - First left - end hydraulic cylinder; 105 - Second right - end hydraulic cylinder; 106 - Third left - end hydraulic cylinder; 107 - Fourth right - end hydraulic cylinder; 108 - Auxiliary lower first connecting rod; 109 - Auxiliary upper first connecting rod; 110 - Auxiliary cross bar; 111 - Auxiliary lower second connecting rod; 112 - Auxiliary upper second connecting rod; 113 - Inner frame plate; 114 - Side connecting rod; 115 - First one - way swivel joint; 116 - First flat foot seat; 117 - Upper hinged fixed seat; 118 - Lower hinged fixed seat; 119 - Side hinged fixed seat; 120 - First round - head swivel joint; 121 - First spherical foot seat; 122 - Outer frame; 123 - Second round - head swivel joint; 124 - Second spherical foot seat; 125 - Second flat foot seat; 126 - Second one - way swivel joint; 127 - Electromagnetic brake; 128 - Rear vehicle plate; 129 - Right - angled chute; 130 - L - shaped rod; 131 - Sliding frame; 132 - Left vehicle plate; 133 - Circular groove; 134 - Intermediate connecting rod; 135 - Right vehicle plate; 136 - Driving motor; 137 - Circular shaft; 138 - Protruding plate; 139 - Rectangular groove; 140 - Bottom first hinge seat; 141 - Bottom second hinge seat; 142 - Bottom side hinge rod. Detailed implementation mode

[0027] The present invention will be further described below in conjunction with specific embodiments. Here, the present invention is explained through illustrative embodiments of the present invention, but it is not intended to limit the present invention.

[0028] Embodiment: As Figures 1 - 11 shown, a frame structure of a self - unloading skeleton semi - trailer includes a frame mechanism 1, which includes a base 101. The base 101 includes a flat plate. At the bottom of the flat plate, a new energy battery 103 is fixedly arranged. There is a protruding plate in the middle of the flat plate, and a large groove is opened in the middle of the protruding plate. The large groove is used for arranging a connecting rod assembly. On both sides of the large groove, a rectangular groove 139 is opened respectively. Four round rods are evenly arranged in a circular pattern in the rectangular groove 139. The round rods are for the hinge connection of the hydraulic cylinder assembly, as can be seen from the attached drawings.

[0029] Two groups of inner hinge points are also provided in the large groove of the base 101. Each group of inner hinge points includes a bottom first hinge seat 140 and a bottom second hinge seat 141. On both sides of the large groove, a bottom side hinge rod 142 is fixedly installed respectively.

[0030] There is a hinge seat arranged between the vehicle frame 102 and the hydraulic cylinder assembly. The hinge seat includes a first flat foot seat 116 and a first spherical foot seat 121. The first flat foot seat 116 is fixedly installed on the vehicle frame 102, and a first one-way adapter 115 is rotatably connected to the first flat foot seat 116; the first spherical foot seat 121 is fixedly installed on the vehicle frame 102, and a first round head adapter 120 is rotatably connected to the first spherical foot seat 121. The first spherical foot seat 121 and the first flat foot seat 116 are axially symmetric in position; the hinge seat further includes a second spherical foot seat 124 and a second flat foot seat 125. The second spherical foot seat 124 is fixedly installed on the vehicle frame 102, and a second round head adapter 123 is rotatably arranged on the second spherical foot seat 124. The second flat foot seat 125 is fixedly installed on the vehicle frame 102, and a second one-way adapter 126 is rotatably arranged on the second flat foot seat 125. The second flat foot seat 125 and the second spherical foot seat 124 are axially symmetric in position.

[0031] The hydraulic cylinder assembly includes a first left-end hydraulic cylinder 104 and a second right-end hydraulic cylinder 105. One end of the first left-end hydraulic cylinder 104 is hinged to the first of the four round rods of the base 101, and the movable end is hinged to the first round head adapter 120. One end of the second right-end hydraulic cylinder 105 is hinged to the second of the four round rods of the base 101, and the movable end is hinged to the second round head adapter 123; the hydraulic cylinder assembly further includes a third left-end hydraulic cylinder 106 and a fourth right-end hydraulic cylinder 107. One end of the third left-end hydraulic cylinder 106 is hinged to the third of the four round rods of the base 101, and the movable end is hinged to the first one-way adapter 115. One end of the fourth right-end hydraulic cylinder 107 is hinged to the fourth of the four round rods of the base 101, and the movable end is hinged to the second one-way adapter 126.

[0032] One end of the inner frame plate 113 close to the first one-way adapter 115 is rotatably installed on the outer frame 122. One end of the hinge point of the outer frame 122 and the end in contact with the inner frame plate 113 is an arc surface, which is convenient for the rotation of the inner frame plate 113. The link assembly is arranged on the side of the inner frame plate 113 close to the base 101.

[0033] A plurality of flat plate hinge seats are arranged on the side of the inner frame plate 113 close to the base 101. The flat plate hinge seats are all fixedly installed on the inner frame plate 113 and mainly include two side hinge fixed seats 119 arranged axially symmetrically, and two groups of outer hinge seats. Each group of outer hinge seats includes an upper hinge fixed seat 117 and a lower hinge fixed seat 118.

[0034] There are two sets of connecting rod assemblies. The two sets have the same structure, play the same role, and are axisymmetric. The connecting rod assembly includes the first lower auxiliary connecting rod 108 and the side connecting rod 114. One end of the first lower auxiliary connecting rod 108 is rotatably connected to the first bottom hinge seat 140 provided on the base 101, and the other end is rotatably connected to the auxiliary cross bar 110. One end of the second lower auxiliary connecting rod 111 is rotatably connected to the second bottom hinge seat 141 provided on the base 101, and the other end is rotatably connected to the auxiliary cross bar 110. The auxiliary upper first connecting rod 109 and the auxiliary upper second connecting rod 112 are respectively rotatably connected to the auxiliary cross bar 110. The auxiliary upper first connecting rod 109 is rotatably connected to the upper hinge fixed seat 117, and the auxiliary upper second connecting rod 112 is rotatably connected to the lower hinge fixed seat 118. One end of the side connecting rod 114 is rotatably connected to the bottom side hinge rod 142 provided on the base 101, and the other end is rotatably connected to the side hinge fixed seat 119 provided on the inner frame plate 113.

[0035] The rear car plate 128 is magnetically connected to the output end of the electromagnetic brake 127. The rear car plate 128 is rotatably installed on the car frame 102 by a rotating shaft. The rotating rod is similar to the round shaft 137, but the rotating rod connected to the output end of the electromagnetic brake 127 is made of metal, which is convenient for magnetic connection with the electromagnetic brake 127. A limiting component is also provided between the rear car plate 128 and the car frame 102. The limiting component includes a right-angle sliding groove 129 provided on the car frame 102. An L-shaped rod 130 is slidably arranged in the right-angle sliding groove 129. Small sliding columns are provided on the long section of the L-shaped rod 130, and the small sliding columns slide in the right-angle sliding groove 129. The short section of the L-shaped rod 130 slides in the sliding frame 131, and the sliding frame 131 is fixedly installed on the rear car plate 128.

[0036] The left car plate 132 and the right car plate 135 have the same structure. Both include a rectangular plate. Convex plates 138 are fixedly installed at the top ends on both sides of the rectangular plate. The function of the convex plates 138 is to form a connecting rod structure for the left car plate 132 and the right car plate 135 on both sides under the action of the middle connecting rod 134. A round shaft 137 is fixedly installed on each side of the rectangular plate, and the round shaft 137 is used for rotatably setting on the car frame 102.

[0037] Four round grooves 133 are provided on the car frame 102 for installing the round shafts 137 respectively.

[0038] Both the left car plate 132 and the right car plate 135 are rotatably installed on the car frame 102. A middle connecting rod 134 is rotatably connected between the convex plates 138 on the same side of the left car plate 132 and the right car plate 135. The round shaft 137 at the end of the left car plate 132 far from the electromagnetic brake 127 is fixedly connected to the output shaft of the driving motor 136, and the driving motor 136 is fixedly installed on the car frame 102.

[0039] The new energy battery 103 is electrically connected to the electromagnetic brake 127 and the drive motor 136 to supply power to the electromagnetic brake 127 and the drive motor 136; the new energy battery 103 is also used to supply power to the first left hydraulic cylinder 104, the second right hydraulic cylinder 105, the third left hydraulic cylinder 106, and the fourth right hydraulic cylinder 107.

[0040] The working principle of the present invention: The present invention is used to load small-sized items, such as granular items, such as sand, soybeans, rice, or other small-sized bulk items, or goods suitable for dumping and unloading in various forms such as small parcels. The base 101 is fixedly installed on the semi-trailer body at the tail of the new energy vehicle. In the initial state, the vehicle frame 102 is in a horizontal state, and the left vehicle board 132, the right vehicle board 135, and the rear vehicle board 128 are all in the closed state for loading goods. When unloading is required, any one of the three directions of the vehicle frame 102 can be selected according to the direction of the unloading site for unloading.

[0041] During operation, the new energy battery 103 supplies power to the first left hydraulic cylinder 104 and the second right hydraulic cylinder 105. According to the remote control or button press, the movable ends of the above hydraulic cylinders extend, driving the vehicle frame 102 to lift, and the angle of the vehicle frame 102 tilts. At this time, the inner frame plate 113 remains stationary, and the direction where the rear vehicle board 128 is located drops. At the same time, the new energy battery 103 supplies power to the electromagnetic brake 127 to disconnect the magnetic connection with the rear vehicle board 128. Under the action of gravity and inertia, the rear vehicle board 128 rotates, and the L-shaped rod 130 will slide in the right-angle chute 129 and also slide in the sliding frame 131 to limit the position of the rear vehicle board 128 and turn the rear vehicle board 128 upward to open. At this time, the goods can be unloaded by gravity. After the unloading is completed, the vehicle frame 102 resets, and at the same time, the L-shaped rod 130 slides reversely in the right-angle chute 129 to play a role in clamping and restricting.

[0042] If unloading is required from the right vehicle board 135, the new energy battery 103 is also used to supply power to the drive motor 136. The drive motor 136 starts to drive the left vehicle board 132 to rotate. The left vehicle board 132 drives the right vehicle board 135 to rotate upward under the action of the intermediate connecting rod 134. Before this, the new energy battery 103 is used to supply power to the third left hydraulic cylinder 106, the first left hydraulic cylinder 104, the fourth right hydraulic cylinder 107, and the second right hydraulic cylinder 105. The extended lengths of the movable ends of the third left hydraulic cylinder 106 and the first left hydraulic cylinder 104 are greater than the extended lengths of the movable ends of the second right hydraulic cylinder 105 and the fourth right hydraulic cylinder 107, making the vehicle frame 102 tilt, and the side where the right vehicle board 135 is located is lower, and the goods are unloaded by gravity.

[0043] When it is necessary to unload goods from the direction of the left car body panel 132, only need to start the driving motor 136 to reverse, so that the left car body panel 132 rotates upward and opens, and then cooperate with adjusting the extending lengths of the movable ends of the second right-end hydraulic cylinder 105, the fourth right-end hydraulic cylinder 107, the first left-end hydraulic cylinder 104, and the third left-end hydraulic cylinder 106 to achieve it.

[0044] When unloading goods from both sides of the car frame 102, whether unloading from the left car body panel 132 or the right car body panel 135, the other side can play a role in pushing the goods to slide down, so that the goods can be unloaded more smoothly. And when unloading from both sides, it will also drive the auxiliary lower first connecting rod 108, the auxiliary lower second connecting rod 111, and the auxiliary cross bar 110 to rotate. At the same time, under the action of the auxiliary upper first connecting rod 109, the auxiliary upper second connecting rod 112, and the side connecting rod 114, and in cooperation with the rotation of the inner frame plate 113, it can make the car frame 102 more stable. According to the adjustment of the extending lengths of the movable ends of the four hydraulic cylinders to be different, the inclination angle can be adjusted according to different goods to adapt to various requirements.

[0045] Those not described in the present invention are applicable to the prior art.

Claims

1. A frame structure of a self-dumping skeletal semi-trailer, comprising a base (101), characterized in that, A vehicle frame (102) is hinged on a base (101) by means of a hydraulic cylinder assembly. A new energy battery (103) is installed at the bottom of the vehicle frame (102). An outer frame (122) is fixedly connected to the vehicle frame (102). An inner frame plate (113) is rotatably connected to the outer frame (122). The inner frame plate (113) is rotatably connected to the base (101) by means of a connecting rod assembly. A left vehicle plate (132) and a right vehicle plate (135) are rotatably installed on the vehicle frame (102). A vehicle rear plate (128) is rotatably arranged between the left vehicle plate (132) and the right vehicle plate (135).

2. The frame structure of a self-tipping skeletal semi-trailer according to claim 1, characterized in that, A hinge seat is arranged between the vehicle frame (102) and the hydraulic cylinder assembly. The hinge seat includes a first flat foot seat (116) and a first spherical foot seat (121). The first flat foot seat (116) is fixedly installed on the vehicle frame (102). A first one-way adapter (115) is rotatably connected to the first flat foot seat (116). The first spherical foot seat (121) is fixedly installed on the vehicle frame (102). A first round head adapter (120) is rotatably connected to the first spherical foot seat (121). The first spherical foot seat (121) and the first flat foot seat (116) are axially symmetric in position. The hinge seat further includes a second spherical foot seat (124) and a second flat foot seat (125). The second spherical foot seat (124) is fixedly installed on the vehicle frame (102). A second round head adapter (123) is rotatably arranged on the second spherical foot seat (124). The second flat foot seat (125) is fixedly installed on the vehicle frame (102). A second one-way adapter (126) is rotatably arranged on the second flat foot seat (125). The second flat foot seat (125) and the second spherical foot seat (124) are axially symmetric in position.

3. The frame structure of a self-tipping skeletal semi-trailer according to claim 2, characterized in that, The hydraulic cylinder assembly includes a first left end hydraulic cylinder (104) and a second right end hydraulic cylinder (105). One end of the first left end hydraulic cylinder (104) is hinged to the base (101), and the movable end is hinged to the first round head adapter (120). One end of the second right end hydraulic cylinder (105) is hinged to the base (101), and the movable end is hinged to the second round head adapter (123). The hydraulic cylinder assembly further includes a third left end hydraulic cylinder (106) and a fourth right end hydraulic cylinder (107). One end of the third left end hydraulic cylinder (106) is hinged to the base (101), and the movable end is hinged to the first one-way adapter (115). One end of the fourth right end hydraulic cylinder (107) is hinged to the base (101), and the movable end is hinged to the second one-way adapter (126). The first left end hydraulic cylinder (104), the second right end hydraulic cylinder (105), the third left end hydraulic cylinder (106), and the fourth right end hydraulic cylinder (107) are powered by the new energy battery (103).

4. A frame structure of a self-tipping skeletal semi-trailer according to claim 1, characterized in that, One end of the inner frame plate (113) close to the first one-way adapter (115) is rotatably installed on the outer frame (122), at one end of the hinge point of the outer frame (122), and the end in contact with the inner frame plate (113) is an arc surface. The connecting rod assembly is arranged on the side of the inner frame plate (113) close to the base (101).

5. A frame structure of a self-tipping skeletal semi-trailer according to claim 4, characterized in that, The described connecting rod assembly includes a first lower auxiliary connecting rod (108) and a side connecting rod (114). One end of the first lower auxiliary connecting rod (108) is rotatably connected to the base (101), and the other end is rotatably connected to the auxiliary cross bar (110). One end of the second lower auxiliary connecting rod (111) is rotatably connected to the base (101), and the other end is rotatably connected to the auxiliary cross bar (110). A first upper auxiliary connecting rod (109) and a second upper auxiliary connecting rod (112) are respectively rotatably connected to the auxiliary cross bar (110). The first upper auxiliary connecting rod (109) and the second upper auxiliary connecting rod (112) are respectively rotatably connected to the inner frame plate (113). One end of the side connecting rod (114) is rotatably connected to the base (101), and the other end is rotatably connected to the inner frame plate (113).

6. The frame structure of a self-tipping skeletal semi-trailer according to claim 1, characterized in that, The rear car plate (128) is magnetically connected to the output end of the electromagnetic brake (127). A limiting assembly is further provided between the rear car plate (128) and the car frame (102). The limiting assembly includes a right-angled chute (129) provided on the car frame (102). An L-shaped rod (130) is slidably arranged in the right-angled chute (129). The L-shaped rod (130) slides in the sliding frame (131). The sliding frame (131) is fixedly installed on the rear car plate (128). The electromagnetic brake (127) is electrically connected to the new energy battery (103).

7. A frame structure of a self-unloading skeletal semi-trailer according to claim 1, characterized in that, The left car plate (132) and the right car plate (135) have the same structure, both including a rectangular plate. Convex plates (138) are fixedly installed on both sides of the top of the rectangular plate. A circular shaft (137) is fixedly installed on each side of the rectangular plate.

8. A frame structure of a self-tipping skeletal semi-trailer according to claim 7, characterized in that, The left car plate (132) and the right car plate (135) are both rotatably installed on the vehicle frame. An intermediate connecting rod (134) is rotatably connected between the convex plates (138) on the same side of the left car plate (132) and the right car plate (135). The circular shaft (137) at the end of the left car plate (132) away from the electromagnetic brake (127) is fixedly connected to the output shaft of the drive motor (136). The drive motor (136) is fixedly installed on the car frame (102). The drive motor (136) is electrically connected to the new energy battery (103).

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