Closed bulk cargo transportation semitrailer capable of remotely controlling automatic unloading

Abstract

The invention discloses a closed bulk cargo transportation semitrailer capable of remotely controlling automatic unloading. The closed bulk cargo transportation semitrailer is composed of a frame, a box body and a hydraulic control system of the box body. A top cover and a rear door of the box body are of an openable structure, a flat-pushing unloading movable floor is arranged on the bottom face of the box body, and a movable push plate is arranged on the front end face. According to the transportation semitrailer, automatic opening and closing of the movable top cover and the rear door can be achieved through the remote control system, automatic unloading of the horizontal pushing floor is controlled, the intelligent degree and the automation degree are high, and the requirement for vehicle loading and unloading is met; sealing rubber strips are arranged at the joint of the movable top cover and the box body, the joint of the rear door and the box body and the joint of the left top cover plate and the right top cover plate, pressing sealing is achieved through locking between the top cover and the box body and locking between the rear door and the box body, and meanwhile sealing rubber is arranged between the top cover plates and the box side cover plates, so that the overall sealing performance of the box body is guaranteed. According to the transportation semitrailer, closed transportation of bulk goods is achieved, and automatic unloading can be remotely controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of transport vehicle design, in particular to the technical field of semitrailer design, and specifically relates to a closed bulk cargo transport semitrailer capable of remotely controlling automatic unloading. Background Art

[0002] Bulk cargo transport semitrailer is a common bulk cargo transport equipment, widely used in the transportation of bulk cargo such as coal, ore, as well as pallets, ton bags and other goods.

[0003] Traditional bulk cargo transport vehicles have poor sealing performance on the roof and rear doors. Rainwater easily enters the box during transportation, and cargo often spills due to poor sealing, causing environmental pollution. They cannot meet the transportation requirements of coal and ton-bag cargo. At the same time, existing bulk cargo transport vehicles mostly use on-site operation to control unloading, which cannot achieve the purpose of remote monitoring of vehicle status and remote control of vehicles to complete loading and unloading. Summary of the invention

[0004] The present invention discloses a closed bulk cargo transport semitrailer capable of remotely controlling automatic unloading in view of the deficiencies of the prior art. The present invention aims to provide a bulk cargo transport semitrailer capable of remotely controlling automatic unloading, having better sealing performance, and having a top cover and a rear door that can be opened and closed automatically.

[0005] The present invention is achieved through the following technical solutions:

[0006] A closed bulk cargo transport semitrailer capable of remote controlled automatic unloading, characterized in that it is composed of a frame, a box body and a hydraulic control system; the top cover and rear door of the box body are openable and closable structures, a horizontal push unloading movable floor is arranged on the bottom surface of the box body, and a movable push plate is arranged on the front surface;

[0007] The horizontal push unloading movable floor is composed of a movable floor, wear-resistant blocks, end caps and a driving mechanism; the movable floor is composed of a number of floor strips arranged in parallel along the longitudinal direction of the frame, and each group of two floor strips forms a synchronous movable floor strip group, forming three groups of movable floor strip groups that move independently and synchronously; the wear-resistant blocks are evenly arranged on the frame floor supporting longitudinal beams to support the movable floor; the driving mechanism is a plurality of groups of cylinder driving mechanisms, which are supported and fixed on the sunken structure reserved in the middle of the frame, and the driving mechanism is composed of a connecting crossbeam, a connecting longitudinal beam, a movable connecting beam, a connecting plate, a bidirectional oil cylinder, and a cylinder fixing bracket; three groups of movable connecting beams and bidirectional oil cylinders are independently arranged, and each movable floor strip group is independently driven and connected to one of the three groups of movable connecting beams of the driving mechanism to realize independent and synchronous movement;

[0008] The movable push plate is composed of a flat push plate and a push plate driving mechanism; the flat push plate is arranged on the inner side of the front wall of the box, side rubbers are set on the edges of the two sides of the flat push plate, floor rubbers are set on the bottom edge, and pulleys are set on the top corners on both sides, and the two pulleys move along the two guide rails arranged longitudinally of the box respectively; the push plate driving mechanism is composed of a hydraulic winch, a guide wheel, and a traction rope. The hydraulic winch is fixedly arranged on the outer end face of the front wall of the frame, and the hydraulic winch is connected to the flat push plate through a steel wire rope to drive the flat push plate to move in the box to push the goods.

[0009] The closing joints of the top cover and the rear door of the present invention are both provided with waterproof sealing rubber strips which are sealed by compression.

[0010] Further, the frame includes a frame longitudinal beam, a front cross beam, a rear cross beam, a front cross beam, a rear cross beam, a side bottom connecting beam, a floor supporting cross beam, a floor supporting longitudinal beam, a running system and a leg;

[0011] Specifically, the frame includes an underframe supported on the running system and a floor support frame laid on the underframe; the underframe is composed of two frame longitudinal beams arranged parallel to each other, side bottom connecting beams on the outer sides of the two frame longitudinal beams, a front cross beam connecting the frame longitudinal beams and the side bottom connecting beams at the front end, a rear cross beam connecting the frame longitudinal beams and the side bottom connecting beams at the rear end, a plurality of front cross beams arranged in parallel at the front and vertically connected and fixed to the two frame longitudinal beams, a plurality of rear cross beams arranged in parallel at the rear and vertically connected and fixed to the two frame longitudinal beams, and a wing cross beam connecting the frame longitudinal beams and the side bottom connecting beams; the rear support of the underframe is installed on the running system, and two groups of legs are respectively arranged on both sides of the middle of the underframe; the floor support frame is respectively arranged in two parts along the longitudinal direction of the frame, and the middle part is the installation position of the driving mechanism of the horizontal push unloading movable floor of the sinking structure supported by the underframe; the horizontal push unloading movable floor is arranged above the floor support frame.

[0012] Furthermore, the driving mechanism of the push-unloading movable floor is fixed by welding the connecting crossbeam to the frame and the side wall, and the connecting longitudinal beam is welded to the connecting crossbeam to provide a supporting structure for the entire driving mechanism; three cylinder fixing brackets are installed and fixed on the connecting crossbeam, and three movable connecting beams are arranged in parallel, namely movable connecting beam one, movable connecting beam two, and movable connecting beam three; the three movable connecting beams are respectively fixedly installed on three two-way cylinders, and the three two-way cylinders are respectively two-way cylinder one, two-way cylinder two, and two-way cylinder three, and each movable connecting beam corresponds to the corresponding two-way cylinder position one by one, movable connecting beam one is installed on two-way cylinder one, movable connecting beam two is installed on two-way cylinder two, and movable connecting beam three is installed on two-way cylinder three; connecting plates are respectively installed above each movable connecting beam for connecting with the movable floor drive.

[0013] Furthermore, the box body is composed of a front wall, side walls, a top cover, a rear door, a pull rod, a front baffle, a rear baffle, a guide rail, and an upper crossbeam to form a box-shaped structure; the front wall of the box body is welded to the front crossbeam of the frame, and the side walls are welded to the front crossbeam, rear crossbeam, and floor support crossbeam of the frame.

[0014] Further, the top cover includes a left top cover plate, a left box side cover plate, a right top cover plate, a right box side cover plate, a rotating shaft, a lifting arm, a hinge, a hydraulic opening and closing mechanism, a side sealing rubber, a top sealing strip, a box sealing rubber and a sealing angle steel; the left top cover plate and the right top cover plate are symmetrically arranged along the longitudinal direction of the frame, and the left box side cover plate and the side box side cover plate are symmetrically arranged along the longitudinal direction of the frame; the top cover plates and the box side cover plates on both sides are connected by hinges.

[0015] Furthermore, the hydraulic opening and closing mechanism of the top cover includes a power unit, a hydraulic pipeline, two sets of hydraulic cylinders arranged in parallel, a chain, a diverter and collector valve and a component installation box; wherein, the rotating shaft is connected to the chain drive through the shaft end gear, and the two ends of the chain are respectively connected to the upper hydraulic cylinder one piston and the lower hydraulic cylinder two pistons of a set of hydraulic cylinders.

[0016] Furthermore, side sealing rubbers are installed between the left top cover plate and the left compartment side cover plate, and between the right top cover plate and the right compartment side cover plate; a top sealing strip is installed at the connection between the left top cover plate and the right top cover plate, and is compressed and sealed by a sealing angle steel arranged on one side; a box sealing rubber is installed between the front baffle plate and the rear baffle plate at the front and rear connection of the top cover and the box body, and the top cover and the box body are compressed and sealed by the sealing rubber.

[0017] The rear door further comprises a planar frame structure consisting of rear door horizontal ribs, rear door vertical ribs, rear door middle horizontal ribs, and rear door middle vertical ribs; the rear door panel is laid and fixed on the surface of the frame structure, and ears, ear mounting seats, cylinders, cylinder mounting seats, and rear door lock hooks are arranged on both sides of the rear door to realize opening, closing, and locking of the rear door.

[0018] Furthermore, the inner surfaces of the rear door vertical ribs on both sides of the rear door and the upper rear door horizontal ribs are provided with installation channels; the rear door sealing strips are embedded in the installation channels, and the sealing strips, the rear columns of the side walls and the upper cross beams of the box body form a rear door compression seal.

[0019] The invention discloses an automatic opening and closing method for a movable top cover of a transport semitrailer: the top cover is symmetrically composed of movable top covers on both sides. The single-side top cover is composed of a rotating shaft, a lifting arm, a top cover plate and a compartment side cover plate. The hydraulic cylinder drives the chain to move by telescoping, the gear of the rotating shaft drives the rotating shaft to rotate under the action of the chain, the rotating shaft drives the lifting arm to rotate the lifting arm around the rotating shaft, the top cover plate is opened under the drive of the lifting arm, the compartment side cover plate is movably connected with the top cover plate through a hinge, and the compartment side cover plate rotates around the follower arm under the drive of the top cover plate, thereby realizing automatic opening or closing of the top cover.

[0020] The automatic opening and closing method of the rear door of a transport semi-trailer of the present invention: the rear door hydraulic cylinder is controlled to extend through a hydraulic control system, the hydraulic cylinder pushes the lifting lug to move upward along the oblong hole of the lifting lug mounting seat to release the lock between the rear door and the rear door lock hook, the cylinder continues to extend, the lifting lug rotates around the lifting lug mounting seat under the push of the hydraulic cylinder, and drives the rear door to open automatically. The rear door hydraulic cylinder is controlled to retract through a hydraulic control system, the lifting lug rotates around the lifting lug mounting seat under the pull of the hydraulic cylinder, and drives the rear door to rotate until it contacts the box body, the hydraulic cylinder continues to retract, the lifting lug descends under the pull of the cylinder, and the rear door is automatically closed and the locking function is realized.

[0021] The method for unloading cargo on a movable floor of a transport semi-trailer by push unloading of cargo in the present invention: the driving mechanism of the push system is composed of a connecting crossbeam, a connecting longitudinal beam, a movable connecting beam, a connecting plate, a two-way oil cylinder, and an oil cylinder fixing bracket. The connecting crossbeam is welded to the frame and the side wall to fix the driving mechanism, and the connecting longitudinal beam is welded to the connecting crossbeam to fix the entire driving mechanism as a whole. Three oil cylinder fixing brackets are installed on both sides of the connecting crossbeam, and three movable connecting beams are fixedly installed on three two-way oil cylinders respectively. During installation, the position of the movable connecting beam must correspond to the position of the two-way oil cylinder one by one, and the connecting plate is installed above the movable connecting beam to fix the movable floor. When unloading begins, the first two-way oil cylinder extends to the front of the box body to drive the movable connecting beam installed on the two-way oil cylinder to move forward. At this time, the movable floor connected to the movable connecting beam moves forward together, and other movable floors remain stationary; when the first two-way oil cylinder drives the movable floor forward to the position, the second two-way oil cylinder moves forward to drive the movable floor on the movable connecting beam where the two-way oil cylinder is located to move forward, and other movable floors remain stationary; when the second two-way oil cylinder drives the movable floor forward to the position, the third two-way oil cylinder moves forward to drive the movable floor on the movable connecting beam where the two-way oil cylinder is located to move forward, and other movable floors remain stationary; when the three two-way oil cylinders move forward to the position, the goods inside the box body do not move; then the three two-way oil cylinders simultaneously extend to the rear of the box body to drive the three movable connecting beams to move backward. At this time, all movable floors move backward as a whole under the drive of the movable connecting beams, and the goods move backward as a whole under the drive of the movable floors. The movable floor can realize self-unloading of goods through repeated operations of the above steps. At the same time, a movable push plate is provided at the front of the box body. When unloading, the movable push plate slides forward along the guide rail. When unloading is completed, the movable push plate returns to the front of the box body along the guide rail under the pull of the hydraulic winch.

[0022] The remote control method of the transport semi-trailer of the present invention: the vehicle is equipped with a signal receiving device connected to the remote control system, the operator sends a control signal through the control system in the control room, and the vehicle receives the corresponding control signal through the signal receiving device to realize the remote control of the top cover, rear door, movable push plate, and horizontal push movable top cover, thereby realizing the needs of vehicle loading and unloading.

[0023] The transport semitrailer of the present invention adopts hydraulically driven automatic opening and closing of the top cover and the rear door, and the opening, closing and locking of the top cover and the rear door are realized through hydraulic drive.

[0024] The cargo transport semitrailer of the present invention is provided with sealing strips at the joints between the movable top cover and the box body, at the joints between the rear door and the box body, and at the joints between the left and right top cover plates. A compression seal is achieved by locking the top cover and the box body, and the rear door and the box body. At the same time, a sealing rubber is also provided between the top cover plate and the side cover plate of the compartment, thereby ensuring the overall sealing performance of the box body.

[0025] The transport semitrailer of the present invention can realize automatic opening and closing of a movable top cover and a rear door through a remote control system, and can control a flat push floor for automatic unloading, and has a high degree of intelligence and automation.

[0026] The transport semitrailer of the present invention realizes the closed transport of bulk cargo and can be remotely controlled to automatically unload cargo. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the front end of the transport semi-trailer of the present invention;

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the rear end of the transport semi-trailer of the present invention;

[0029] Figure 3 It is a schematic diagram of the internal structure of the transport semi-trailer box body of the present invention;

[0030] Figure 4 It is a schematic diagram of the frame floor support structure of the transport semi-trailer of the present invention;

[0031] Figure 5 It is a schematic diagram of the frame and underframe structure of the transport semi-trailer of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the movable floor for flat-push unloading of a transport semi-trailer of the present invention;

[0033] Figure 7 It is a schematic diagram for explaining the disassembly of the movable floor for flat-push unloading of a transport semi-trailer of the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the driving mechanism of the movable floor of the present invention;

[0035] Fig. 9 It is a schematic diagram of the position of the movable connecting beam of the movable floor of the present invention;

[0036] Fig.10 It is a schematic diagram of the box structure of the transport semi-trailer of the present invention;

[0037] Fig.11 It is a schematic diagram of the disassembly structure of the transport semi-trailer box body of the present invention;

[0038] Fig.12 It is a schematic diagram of the planar structure of the front wall of the transport semi-trailer of the present invention;

[0039] Fig.13 It is a schematic diagram of the side structure of the front wall of the transport semi-trailer of the present invention;

[0040] Fig.14 It is a schematic diagram of the side wall structure of the transport semi-trailer of the present invention;

[0041] Fig.15 It is a schematic diagram of the side structure of the side wall of the transport semi-trailer of the present invention;

[0042] Fig.16 It is a schematic diagram of the roof opening and closing mechanism of the transport semitrailer of the present invention;

[0043] Fig.17 This is a schematic diagram of the top cover of the transport semitrailer of the present invention when viewed from above;

[0044] Fig.18 It is a schematic diagram of the structure of the top cover plate of the transport semi-trailer roof of the present invention;

[0045] Fig.19 It is a schematic diagram of the structure of the side cover plate of the top cover box of the transport semi-trailer of the present invention;

[0046] Fig. 20 It is a schematic diagram of the structure of the top cover lifting arm of the transport semitrailer of the present invention;

[0047] Fig.21 It is a schematic diagram of the hydraulic opening and closing mechanism of the top cover of the transport semitrailer of the present invention;

[0048] Fig. 22 It is a schematic diagram of the sealing structure between the top cover and the box body of the transport semi-trailer of the present invention;

[0049] Fig.23 It is a schematic diagram of the sealing structure between the left and right cover plates of the transport semi-trailer of the present invention;

[0050] Fig.24 It is a schematic diagram of the plan structure of the rear door of the transport semi-trailer of the present invention;

[0051] Fig.25 It is a schematic diagram of the side structure of the rear door of the transport semi-trailer of the present invention;

[0052] Fig.26 It is a schematic diagram of the sealing structure of the rear door of the transport semi-trailer of the present invention;

[0053] Fig. 27 It is a schematic diagram of the front end structure of the movable push plate of the transport semi-trailer of the present invention;

[0054] Fig.28 It is a schematic diagram of the inner side structure of the movable push plate of the transport semi-trailer of the present invention;

[0055] Fig.29 It is a schematic diagram of the connection of the driving mechanism of the transport movable push plate of the present invention;

[0056] Fig.30 It is a schematic diagram of the rear door of the transport semi-trailer of the present invention in an open state;

[0057] Fig.31 It is a schematic diagram of the top cover of the transport semi-trailer of the present invention in an open state;

[0058] Fig.32 It is a control principle diagram of the top cover, rear door, movable push plate and horizontal push unloading movable floor of the transport semi-trailer of the present invention;

[0059] Fig.33 The invention discloses a remote control logic diagram of a top cover, a rear door, a movable push plate and a movable floor for horizontal push unloading of a transport semitrailer. DETAILED DESCRIPTION

[0060] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies that are the same or similar to the present invention do not exceed the scope of protection of the present invention.

[0061] Combined with the attached pictures.

[0062] like Figure 1 , Figure 2 , Figure 3 As shown, Figure 1 This is a schematic diagram of the three-dimensional structure of the front end of the transport semi-trailer of the present invention. Figure 2 This is a schematic diagram of the three-dimensional structure of the rear end of the transport semi-trailer of the present invention. Figure 3 The enclosed bulk cargo transport semitrailer capable of remotely controlling automatic unloading is composed of a frame 1, a push unloading movable floor 2, a box 3, a movable push plate 4, and a hydraulic control system.

[0063] like Figure 4 , Figure 5 As shown, Figure 4 This is a schematic diagram of the frame floor support structure of the transport semi-trailer of the present invention. Figure 5 The frame 1 is composed of a frame longitudinal beam 1-1, a front cross beam 1-2, a rear cross beam 1-3, a front cross beam 1-4, a rear cross beam 1-5, a side bottom connecting beam 1-6, a floor supporting cross beam 1-7, a floor supporting longitudinal beam 1-8, a running system 1-9, a leg 1-10 and other accessories.

[0064] The frame 1 includes an underframe supported on a running system 1-9 and a floor support frame laid on the underframe; the underframe is composed of two frame longitudinal beams 1-1 arranged in parallel to each other, side beams on the outer sides of the two frame longitudinal beams 1-1, a front cross beam 1-2 connecting the frame longitudinal beams 1-1 and the side beams at the front end, a rear cross beam 1-3 connecting the frame longitudinal beams 1-1 and the side beams at the rear end, a plurality of front cross beams 1-4 arranged in parallel at the front and vertically connected and fixed to the two frame longitudinal beams 1-1, a plurality of rear cross beams 1-5 arranged in parallel at the rear and vertically connected and fixed to the two frame longitudinal beams 1-1, and a wing cross beam 1-11 connecting the frame longitudinal beams 1-1 and the side beams; the rear support of the underframe is arranged Installed on the running system 1-9, two groups of legs 1-10 are respectively arranged on both sides of the middle of the chassis; the floor support frame is respectively arranged in two parts along the longitudinal direction of the frame, the front part and the rear part, and the middle part is the installation position of the driving mechanism 2-4 of the horizontal push unloading movable floor 2 of the sinking structure supported by the chassis; the floor support frames of the front and rear parts are composed of multiple floor support cross beams 1-7 that are parallel and spaced and horizontally fixed on the longitudinal beams 1-1 and side beams of the frame, floor support longitudinal beams 1-8 that are parallel and spaced and longitudinally fixed on the floor support cross beams 1-7, and longitudinally arranged side bottom connecting beams 1-6 that are respectively fixed at both ends of all floor support cross beams 1-7. The horizontal push unloading movable floor 2 is arranged above the floor support frame.

[0065] like Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, Figure 6 This is a schematic diagram of the movable floor structure of the transport semi-trailer for flat push unloading of the present invention. Figure 7 This is a schematic diagram for explaining the disassembly of the movable floor for flat-push unloading of a transport semi-trailer of the present invention. Figure 8 is a schematic diagram of the structure of the driving mechanism of the movable floor of the present invention, Fig. 9 The horizontal push unloading movable floor 2 is composed of a moving floor 2-1, wear-resistant blocks 2-2, end caps 2-3 and a driving mechanism 2-4.

[0066] The movable floor 2-1 is arranged longitudinally along the frame 1, and every three independently movable movable floors 2-1 are laid continuously as a group; the first strip of each group of movable floors 2-1 is driven and connected to the movable connecting beam 1 2-4-3-1 of the driving mechanism 2-4 and moves synchronously, the second strip of each group of movable floors 2-1 is driven and connected to the movable connecting beam 2-4-3-2 of the driving mechanism 2-4 and moves synchronously, and the third strip of each group of movable floors 2-1 is driven and connected to the movable connecting beam 3 2-4-3-3 of the driving mechanism 2-4 and moves synchronously.

[0067] The wear-resistant blocks 2-2 are evenly spaced and arranged on the floor supporting longitudinal beams 1-8 to support the movable floor 2-1.

[0068] The end cap 2 - 3 is provided at the end of the movable floor 2 - 1 at the longitudinal rear of the frame 1 .

[0069] The driving mechanism 2-4 is a multi-group oil cylinder driving mechanism, which is supported and fixedly arranged on a sinking structure reserved in the middle of the frame 1. The driving mechanism 2-4 is composed of a connecting cross beam 2-4-1, a connecting longitudinal beam 2-4-2, a movable connecting beam, a connecting plate 2-4-4, a bidirectional oil cylinder, and an oil cylinder fixing bracket 2-4-6.

[0070] The connecting crossbeam 2-4-1 is welded to the frame 1 and the side wall 3-2 to fix the drive mechanism. The connecting longitudinal beam 2-4-2 is welded to the connecting crossbeam 2-4-1 to provide a support structure for the entire drive mechanism 2-4. Three oil cylinder fixed brackets 2-4-6 are installed and fixed on a connecting crossbeam 2-4-1. Three movable connecting beams are arranged in parallel, namely movable connecting beam 1 2-4-3-1, movable connecting beam 2 2-4-3-2, and movable connecting beam 3 2-4-3-3; the three movable connecting beams are fixedly installed on three two-way oil cylinders, namely two-way oil cylinder 1 2-4-5-1, two-way oil cylinder 2 2-4-5-2, and two-way oil cylinder 3 2-4-5- 3. During installation, the positions of the movable connecting beams must correspond one to one with the positions of the corresponding two-way cylinders. The movable connecting beam 1 2-4-3-1 is installed on the two-way cylinder 1 2-4-5-1, the movable connecting beam 2 2-4-3-2 is installed on the two-way cylinder 2-4-5-2, and the movable connecting beam 3 2-4-3-3 is installed on the two-way cylinder 3 2-4-5-3; the connecting plates 2-4-4 are respectively installed above each movable connecting beam for driving connection with the fixed movable floor 2-1.

[0071] When unloading begins, the two-way cylinder 1 2-4-5-1 extends toward the front of the box body, driving the movable connecting beam 1 2-4-3-1 installed on the cylinder to move forward. At this time, a group of movable floors 2-1 connected to the top of the movable connecting beam move forward synchronously, and other movable floors remain stationary. When the two-way cylinder 1 2-4-5-1 drives a group of movable floors 2-1 to move forward to the right position, the two-way cylinder 2 2-4-5-2 extends toward the front of the box body, driving a group of movable floors 2-1 on the movable connecting beam 2 2-4-3-2 where the cylinder is located to move forward synchronously, and other movable floors remain stationary. When the cylinder 2-4-5-2 drives a group of movable floors 2-1 to move forward to the position, the two-way oil cylinder 3 2-4-5-3 extends to the front of the box to drive a group of movable floors 2-1 on the movable connecting beam 3 2-4-3-3 where the oil cylinder is located to move forward synchronously, and other movable floors remain stationary; when all three two-way oil cylinders move forward to the position, the goods inside the box do not move; then the three two-way oil cylinders simultaneously extend to the rear of the box to drive the three movable connecting beams to move backward, at this time all the movable floors 2-1 move backward as a whole driven by the movable connecting beams, and the goods move backward as a whole driven by the movable floors 2-1. The movable floor 2-1 can realize the self-unloading of goods by repeating the above steps.

[0072] When the goods are loaded from the rear, the two-way cylinder 3 2-4-5-3 extends toward the rear of the box 3 to drive the movable connecting beam 3 2-4-3-3 installed on the cylinder to move backwards. At this time, a group of movable floors 2-1 connected to the top of the movable connecting beam move backwards together, and other movable floors remain stationary; when the two-way cylinder 3 2-4-5-3 drives a group of movable floors 2-1 to move backwards into place, the two-way cylinder 2 2-4-5-2 extends toward the rear of the box to drive a group of movable floors 2-1 on the movable connecting beam 2 2-4-3-2 where the cylinder is located to move backwards, and other movable floors remain stationary ; When the two-way oil cylinder 2-4-5-2 drives a group of movable floors 2-1 to move backward to the right position, the two-way oil cylinder 1 2-4-5-1 extends to the rear of the box to drive a group of movable floors 2-1 on the movable connecting beam 1 2-4-3-1 where the oil cylinder is located to move backward, and the other movable floors remain stationary; when all three oil cylinders move backward to the right position, the goods at the rear do not move; then the three oil cylinders simultaneously extend to the front of the box to drive the three movable connecting beams forward, at this time all the movable floors 2-1 move forward as a whole driven by the movable connecting beams, and the goods move forward as a whole driven by the movable floors 2-1. The movable floor 2-1 can realize the loading of goods from the rear of the box by repeating the above steps.

[0073] like Fig.10 , Fig.11 As shown, Fig.10 This is a schematic diagram of the box structure of the transport semi-trailer of the present invention. Fig.11 The present invention is a schematic diagram of the disassembly structure of the transport semi-trailer box. The box 3 is composed of a front wall 3-1, a side wall 3-2, a top cover 3-3, a rear door 3-4, a pull rod 3-5, a front baffle 3-6, a rear baffle 3-7, a guide rail 3-8, and an upper crossbeam 3-9 to form a box-shaped structure. The front wall 3-1 in the box 3 is welded to the front crossbeam 1-2 of the frame 1, the side wall 3-2 is welded to the front crossbeam 1-2 of the frame 1, the rear crossbeam, and the floor support crossbeam 1-7, and the top cover 3-3 and the rear door 3-4 can be opened.

[0074] like Fig.12 , Fig.13 As shown, Fig.12 This is a schematic diagram of the planar structure of the front wall of the transport semi-trailer of the present invention. Fig.13It is a schematic diagram of the side structure of the front wall of the transport semi-trailer of the present invention. The front wall 3-1 is welded by a front wall plate 3-1-1, a front wall transverse rib 3-1-2, a front wall vertical rib 3-1-3, a middle transverse rib 3-1-4, and a front baffle assembly 3-1-5. Both sides of the front wall 3-1 are fixed by the front columns 3-2-2 of the side walls 3-2, a front baffle 3-6 is arranged above the front wall 3-1, and the front baffle assembly 3-1-5 is welded and connected to the side bottom connecting beam 1-6 of the frame 1. The front baffle assembly 3-1-5 is located above the movable floor 2-1, and a movable space is reserved for the movable floor 2-1 to extend to the front of the box body when loading and unloading goods.

[0075] like Fig.14 , Fig.15 As shown, Fig.14 It is a schematic diagram of the side wall structure of the transport semi-trailer of the present invention, Fig.15 The side wall structure schematic diagram of the transport semi-trailer of the present invention. The side wall 3-2 is symmetrically arranged by the left and right side walls 3-2 of the same structure, and the side wall 3-2 is composed of a side plate 3-2-1, a front column 3-2-2, a rear column 3-2-3, an upper crossbeam 3-2-4, a lower crossbeam 3-2-5, a middle reinforced middle vertical rib 3-2-7, a plurality of side wall vertical ribs 3-2-6 arranged between the middle vertical rib 3-2-7 and the front column 3-2-2 and the rear column 3-2-3, and a compartment side sealing plate 3-2-8. The compartment side sealing plate 3-2-8 is an inclined sealing plate, which can prevent the accumulation of goods at the connection between the side wall and the floor.

[0076] like Fig.16 , Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21 As shown, Fig.16 This is a schematic diagram of the roof opening and closing mechanism of the transport semitrailer of the present invention. Fig.17 This is a schematic diagram of the top cover of the transport semitrailer of the present invention when viewed from above. Fig.18 This is a schematic diagram of the top cover structure of the transport semi-trailer roof of the present invention. Fig.19 This is a schematic diagram of the side cover structure of the top cover of the transport semi-trailer of the present invention. Fig. 20 This is a schematic diagram of the roof lifting arm structure of the transport semitrailer of the present invention. Fig.21 It is a schematic diagram of the hydraulic opening and closing mechanism of the top cover of the transport semi-trailer of the present invention. The top cover 3-3 is composed of a left top cover plate 3-3-1, a left compartment side cover plate 3-3-2, a right top cover plate 3-3-3, a right compartment side cover plate 3-3-4, a rotating shaft 3-3-5, a lifting arm 3-3-6, a hinge 3-3-7, a hydraulic opening and closing mechanism 3-3-8, a side sealing rubber 3-3-9, a top sealing strip 3-3-10, a box sealing rubber 3-3-11, and a sealing angle steel 3-3-12.

[0077] like Fig.16As shown, the left top cover plate 3-3-1 and the right top cover plate 3-3-2 are symmetrically arranged along the longitudinal direction of the frame 1, and the left compartment side cover plate 3-3-3 and the side compartment side cover plate 3-3-4 are symmetrically arranged along the longitudinal direction of the frame 1.

[0078] like Fig.17 , Fig.18 As shown, the left / right side top cover plates 3-3-1 / 3-3-3 are welded by side longitudinal beams 3-3-1-2, side cross beams 3-3-1-3, lifting arm support beams 3-3-1-4, lifting arm mounting seats 3-3-1-5, middle longitudinal beams 3-3-1-6 and middle cross beams 3-3-1-7 to form a plane frame structure, the top plate 3-3-1-1 is fixedly laid on the surface of the frame, and a driving support structure matching the position of the driving mechanism is arranged in the frame through the lifting arm support beams 3-3-1-4 and the lifting arm mounting seats 3-3-1-5, and the driving support structures are installed on the side walls 3-2 of the box body through the lifting arms 3-3-6 and the rotating shaft 3-3-5.

[0079] like Fig.19 As shown, the left / right side compartment cover plate 3-3-2 / 3-3-4 is welded by the side cross beam 3-3-2-2, the side longitudinal beam 3-3-2-3 and the middle longitudinal beam 3-3-2-4 to form a plane frame structure, the cover plate 3-3-2-1 is laid and fixed on the frame surface, and the follower arm 3-3-2-5 for driving is arranged according to the position of the driving mechanism.

[0080] like Fig. 20 As shown, the lifting arm 3-3-6 is composed of a lifting arm shaft seat 3-3-6-1, a boom 3-3-6-2, a boom connecting plate 3-3-6-3, and a boom shaft 3-3-6-4.

[0081] like Fig.16 As shown, the top cover plates on both sides are connected to the compartment side cover plates via hinges 3-3-7.

[0082] like Fig.21As shown, the automatic opening and closing of the top cover 3-3 is controlled and driven by the hydraulic opening and closing mechanism 3-3-8. The hydraulic opening and closing mechanism is composed of a power unit 3-3-8-1, a hydraulic pipeline 3-3-8-2, two sets of hydraulic cylinders 3-3-8-3 arranged in parallel, a chain 3-3-8-4, a flow dividing and collecting valve 3-3-8-5, and a component installation box 3-3-8-6. Among them, the rotating shaft 3-3-5 is driven and connected to the chain 3-3-8-4 through the shaft end gear, and the two ends of the chain are respectively driven and connected to the upper hydraulic cylinder 1 3-3-8-3-1 piston and the lower hydraulic cylinder 2 3-3-8-3-2 piston of a set of hydraulic cylinders 3-3-8-3. When the hydraulic system controls the upper hydraulic cylinder 1 3-3-8-3-1 of the left and right sets of hydraulic cylinders 3-3-8-3 in parallel to extend, the lower hydraulic cylinder 2 3-3-8-3-2 of the two sets of hydraulic cylinders 3-3-8-3 are retracted, and the chain 3-3-8-4 drives the shaft 3-3-5 to rotate outward. Under the action of the shaft 3-3-5, the lifting arm 3-3-6 rotates around the shaft 3-3-5 to drive the left / right top cover 3-3-1 / 3-3-3 to flip to the outside of the box body. Since the top cover and the compartment side cover are movably connected by the hinge 3-3-7, the left / right compartment side cover 3-3-2 / 3-3-4 are on the left / right top cover 3-3-1 / 3 -3-3, driven by the following arm 3-3-2-5, rotates toward the outside of the box body, and the left / right side top covers are automatically opened to both sides; when the hydraulic system controls the left and right upper hydraulic cylinders 1 3-3-8-3-1 to retract, the lower hydraulic cylinder 2 3-3-8-3-2 extends, and the chain 3-3-8-4 drives the rotating shaft 3-3-5 to rotate inward, and the lifting arm 3-3-6 rotates around the rotating shaft under the action of the rotating shaft 3-3-5, driving the left / right side top cover 3-3-1 / 3-3-3 to flip toward the inside of the box body. At this time, the left / right side compartment cover rotates toward the inside of the box body around the following arm 3-3-2-5 driven by the left / right side top cover, and the left and right side top covers are automatically closed.

[0083] like Fig.16 As shown, Fig.16 The side sealing rubber 3-3-9 is installed between the left top cover plate 3-3-1 and the left side cover plate 3-3-2, and between the right top cover plate 3-3-3 and the right side cover plate 3-3-4.

[0084] like Fig.23 As shown, Fig.23 The diagram is a schematic diagram of the sealing structure between the left and right cover plates of the transport semi-trailer of the present invention. A top sealing strip 3-3-10 is installed at the connection between the left top cover plate 3-3-1 and the right top cover plate 3-3-3, and is compressed and sealed by a sealing angle steel 3-3-12 arranged on one side.

[0085] like Fig. 22 As shown, Fig. 22The schematic diagram of the sealing structure between the top cover and the box body of the transport semi-trailer of the present invention is shown. Box body sealing rubber 3-3-11 is installed between the front baffle 3-6 and the rear baffle 3-7 at the front and rear connection of the top cover 3-3 and the box body 3, and the top cover 3-3 and the box body 3 are tightly sealed by the sealing rubber.

[0086] like Fig.24 , Fig.25 , Fig.26 As shown, Fig.24 It is a schematic diagram of the plan structure of the rear door of the transport semi-trailer of the present invention. Fig.25 It is a schematic diagram of the side structure of the rear door of the transport semi-trailer of the present invention. Fig.26 The rear door 3-4 is composed of rear door transverse ribs 3-4-2, rear door vertical ribs 3-4-3, rear door middle transverse ribs 3-4-4, and rear door middle vertical ribs 3-4-5 to form a plane frame structure. The rear door panel 3-4-1 is laid and fixed on the surface of the frame structure. The rear door 3-4 is provided with lifting ears 3-4-6, lifting ear mounting seats 3-4-7, oil cylinders 3-4-8, oil cylinder mounting seats 3-4-9, and rear door lock hooks 3-4-10 on both sides to realize the rear door 3-4 opening. The rear door 3-4 is locked, and the rear door cylinder 3-4-8 is extended through the hydraulic control system. The cylinder 3-4-8 pushes the lifting lug 3-4-6 to move upward along the oblong hole of the lifting lug mounting seat 3-4-7 to release the lock between the rear door 3-4 and the rear door lock hook 3-4-10. The cylinder continues to extend 3-4-8, and the lifting lug 3-4-6 rotates around the lifting lug mounting seat 3-4-7 under the push of the cylinder 3-4-8, driving the rear door 3-4 to open automatically. The rear door 3-4 is retracted through the hydraulic control system to control the rear door cylinder 3-4-8. The lifting lug 3-4-6 rotates around the lifting lug mounting seat 3-4-7 under the pull of the cylinder 3-4-8, driving the rear door 3-4 to rotate until it contacts the box body 3. The cylinder 3-4-8 continues to retract, and the lifting lug 3-4-6 drops under the pull of the cylinder 3-4-8, realizing the automatic closing of the rear door 3-4 and the locking function.

[0087] like Fig.26 As shown, the rear door vertical ribs 3-4-3 on both sides of the rear door 3-4 and the inner surfaces of the upper rear door transverse ribs 3-4-2 are provided with mounting channel steels 3-4-12; Fig.26 It shows the cross-sectional structural relationship between the rear door vertical ribs 3-4-3 and the rear pillars 3-2-3 on both sides of the rear door 3-4; the rear door sealing strip 3-4-11 is embedded in the installation channel steel 3-4-12, and the sealing strip 3-4-11, the rear pillars 3-2-3 of the side wall 3-2 and the upper cross beam 3-9 of the box body 3 form a rear door compression seal; Fig.11 As shown, the cross beam 3-9 on the box body 3 is covered by the rear door, and the figure shows the schematic position.

[0088] like Fig. 27 , Fig.28 , Fig.29 As shown, Fig. 27 It is a schematic diagram of the front end structure of the movable push plate of the transport semi-trailer of the present invention. Fig.28 This is a schematic diagram of the inner side structure of the movable push plate of the transport semi-trailer of the present invention. Fig.29 The movable push plate 4 is composed of a push plate 4-1, an upper transverse rib 4-2, a middle transverse rib 4-3, a lower transverse rib 4-4, a lower vertical rib 4-5, an upper vertical rib 4-6, a middle vertical rib 4-7, a bottom rubber 4-8, a side rubber 4-9 and a movable push plate driving mechanism 4-10.

[0089] like Fig.29 As shown, the movable push plate driving mechanism 4-10 is composed of a hydraulic winch 4-10-1, a guide wheel 4-10-2, a connecting seat 4-10-3, and a traction rope 4-10-4. The reset movement of the movable push plate 4 is driven by the movable push plate driving mechanism 4-10. The movable push plate 4 is located inside the box body 3 and is connected to the connecting seat 4-10-3 installed on the movable push plate 4 through the traction rope 4-10-4. The traction rope 4-10-4 passes around the guide wheel 4-10-2, and the other end is connected through the hydraulic winch 4-10-1; the side rubbers 4-9 are fixedly installed on both sides of the movable push plate 4, and the bottom rubber 4-8 is fixedly installed on the bottom side. When the vehicle starts to unload, since the cargo is loaded on the bottom rubber 4-8 of the movable push plate 4, the cargo presses the bottom rubber 4-8 and the side rubber 4-9 against the horizontal push unloading movable floor 2 and the side wall 3-2 respectively. The cargo is unloaded backward under the action of the horizontal push unloading movable floor 2. The movable push plate 4 is pressed from the side and bottom by the cargo, so it moves backward along the guide rail 3-8 with the cargo. When the movable push plate 4 moves to the rear of the box body 3, the unloading is completed. After the unloading is completed, the traction rope 4-10-4, driven by the hydraulic winch 4-10-1, pulls the movable push plate 4 along the guide rail 3-8 to move to the front of the vehicle and reset. The movable push plate 4 can prevent the cargo from tipping over to the front of the vehicle during the loading and unloading process, ensuring that the cargo is completely unloaded and the loading and unloading of the cargo is safe.

[0090] like Fig.32 , Fig.33 As shown, Fig.32 This is a schematic diagram of the control principle of the top cover, rear door, movable push plate, and movable floor for horizontal push unloading of the transport semi-trailer of the present invention. Fig.33It is a remote control logic diagram of the top cover, rear door, movable push plate, and push-to-unload movable floor of the transport semi-trailer of the present invention. The control system of the present invention is composed of a power unit, an electric control box, a 24VDC battery, a drive unit valve, a fuse, a travel switch, a hydraulic oil pipe, an electric wire, etc. The electric control box is connected to the 24VDC battery through a power line to take power, and the power unit is connected to the 24VDC battery through a power line to take power by electricity. The electric control box is connected to the power unit through a control wire to transmit the control signal to the power unit and the drive unit. After receiving the control signal transmitted by the electric control box, the power unit and the drive unit send out a control instruction to control the top cover, the rear door, the movable push plate, and the push-to-unload movable floor respectively. The vehicle is equipped with a signal receiving device connected to the remote control system. The operator sends a control signal through the control system in the control room, and the vehicle receives the corresponding control signal through the signal receiving device to realize remote control of the top cover, the rear door, the movable push plate, and the push-to-unload movable top cover. Thereby, the need for loading and unloading of vehicles is met.

Claims

1. A closed bulk cargo transport semitrailer capable of remotely controlled automatic unloading, characterized in that: It consists of a frame, a box and its hydraulic control system; the top cover and rear door of the box are openable and closable structures, the bottom of the box is provided with a movable floor for pushing and unloading, and the front end is provided with a movable push plate; The horizontal push unloading movable floor is composed of a movable floor, wear-resistant blocks, end caps and a driving mechanism; the movable floor is composed of a number of floor strips arranged in parallel along the longitudinal direction of the frame, and each group of two floor strips forms a synchronous movable floor strip group, forming three groups of movable floor strip groups that move independently and synchronously; the wear-resistant blocks are evenly arranged on the frame floor supporting longitudinal beams to support the movable floor; the driving mechanism is a plurality of groups of cylinder driving mechanisms, which are supported and fixed on the sunken structure reserved in the middle of the frame, and the driving mechanism is composed of a connecting crossbeam, a connecting longitudinal beam, a movable connecting beam, a connecting plate, a bidirectional oil cylinder, and a cylinder fixing bracket; three groups of movable connecting beams and bidirectional oil cylinders are independently arranged, and each movable floor strip group is independently driven and connected to one of the three groups of movable connecting beams of the driving mechanism to realize independent and synchronous movement; The movable push plate is composed of a flat push plate and a push plate driving mechanism; the flat push plate is arranged on the inner side of the front wall of the box, side rubbers are set on the edges of the two sides of the flat push plate, floor rubbers are set on the bottom edge, and pulleys are set on the top corners on both sides, and the two pulleys move along the two guide rails arranged longitudinally of the box respectively; the push plate driving mechanism is composed of a hydraulic winch, a guide wheel, and a traction rope. The hydraulic winch is fixedly arranged on the outer end face of the front wall of the frame, and the hydraulic winch is connected to the flat push plate through a steel wire rope to drive the flat push plate to move in the box to push the goods.

2. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 1, characterized in that: The closing joints of the top cover and the rear door are both provided with waterproof sealing rubber strips which are sealed by compression.

3. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 2, characterized in that: The frame includes an underframe supported on the running system and a floor support frame laid on the underframe; the underframe is composed of two frame longitudinal beams arranged in parallel to each other, side bottom connecting beams on the outer sides of the two frame longitudinal beams, a front cross beam connecting the frame longitudinal beams and the side bottom connecting beams at the front end, a rear cross beam connecting the frame longitudinal beams and the side bottom connecting beams at the rear end, a plurality of front cross beams arranged in parallel at the front and vertically connected and fixed to the two frame longitudinal beams, a plurality of rear cross beams arranged in parallel at the rear and vertically connected and fixed to the two frame longitudinal beams, and a wing cross beam connecting the frame longitudinal beams and the side bottom connecting beams; the rear support of the underframe is installed on the running system, and two groups of legs are respectively arranged on both sides of the middle of the underframe; the floor support frame is respectively arranged in two parts along the longitudinal direction of the frame, and the middle part is the installation position of the driving mechanism of the horizontal push unloading movable floor of the sinking structure supported by the underframe; The horizontal push unloading movable floor is arranged above the floor support frame.

4. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 2, characterized in that: The driving mechanism of the push-unloading movable floor is fixed by welding the connecting crossbeam to the frame and the side wall, and the connecting longitudinal beam is welded to the connecting crossbeam to provide a supporting structure for the entire driving mechanism; three cylinder fixing brackets are installed and fixed on the connecting crossbeam, and three movable connecting beams are arranged in parallel, namely movable connecting beam one, movable connecting beam two, and movable connecting beam three; the three movable connecting beams are respectively fixedly installed on three two-way cylinders, and the three two-way cylinders are respectively two-way cylinder one, two-way cylinder two, and two-way cylinder three, and each movable connecting beam corresponds to the position of the corresponding two-way cylinder one by one, movable connecting beam one is installed on two-way cylinder one, movable connecting beam two is installed on two-way cylinder two, and movable connecting beam three is installed on two-way cylinder three; connecting plates are respectively installed above each movable connecting beam for connecting with the movable floor drive.

5. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 2, characterized in that: The box body is a box-shaped structure consisting of a front wall, side walls, a top cover, a rear door, a pull rod, a front baffle, a rear baffle, a guide rail, and an upper crossbeam; the front wall of the box body is welded to the front crossbeam of the frame, and the side walls are welded to the front crossbeam, rear crossbeam, and floor support crossbeam of the frame.

6. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 5, characterized in that: The top cover includes a left top cover plate, a left compartment side cover plate, a right top cover plate, a right compartment side cover plate, a rotating shaft, a lifting arm, a hinge, a hydraulic opening and closing mechanism, a side sealing rubber, a top sealing strip, a box sealing rubber and a sealing angle steel; the left top cover plate and the right top cover plate are symmetrically arranged along the longitudinal direction of the frame, and the left compartment side cover plate and the side compartment side cover plate are symmetrically arranged along the longitudinal direction of the frame; the top cover plates and the compartment side cover plates on both sides are connected by hinges.

7. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 6, characterized in that: The hydraulic opening and closing mechanism of the top cover includes a power unit, a hydraulic pipeline, two sets of hydraulic cylinders arranged in parallel, a chain, a diverter and collector valve and a component installation box; wherein the rotating shaft is connected to the chain drive through the shaft end gear, and the two ends of the chain are respectively connected to the upper hydraulic cylinder one piston and the lower hydraulic cylinder two pistons of a set of hydraulic cylinders.

8. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 6, characterized in that: Side sealing rubbers are installed between the left top cover plate and the left compartment side cover plate, and between the right top cover plate and the right compartment side cover plate; a top sealing strip is installed at the connection between the left top cover plate and the right top cover plate, and is compressed and sealed by a sealing angle steel arranged on one side; a box sealing rubber is installed between the front baffle plate and the rear baffle plate at the front and rear connection of the top cover and the box body, and the top cover and the box body are compressed and sealed by the sealing rubber.

9. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 5, characterized in that: The rear door comprises a planar frame structure consisting of rear door horizontal ribs, rear door vertical ribs, rear door middle horizontal ribs, and rear door middle vertical ribs; a rear door panel is laid and fixed on the surface of the frame structure, and lifting ears, lifting ear mounting seats, oil cylinders, oil cylinder mounting seats, and rear door lock hooks are arranged on both sides of the rear door to realize opening, closing, and locking of the rear door.

10. The enclosed bulk cargo transport semitrailer capable of remote controlled automatic unloading according to claim 9, characterized in that: The inner surfaces of the rear door vertical ribs on both sides of the rear door and the upper rear door transverse ribs are provided with installation channels; the rear door sealing strips are embedded in the installation channels, and the sealing strips, the rear columns of the side walls and the upper cross beams of the box body form a rear door compression seal.

Images