CN115742913A

CN115742913A - Good back of stability turns over self-discharging semitrailer

Info

Publication number: CN115742913A
Application number: CN202211603552.2A
Authority: CN
Inventors: 王秋童; 沈伟; 唐迪; 钱雨禾
Original assignee: Beijing Huahe Internet Of Vehicles Technology Co ltd
Current assignee: Beijing Huahe Internet Of Vehicles Technology Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-03-07

Abstract

The invention discloses a backward-turning self-discharging semitrailer with good stability, and belongs to the field of semitrailers. The single-point suspension lifting device comprises a traction assembly, a container, a rear overturning support assembly, a single-point suspension, a traveling system and a lifting oil cylinder, wherein the bottom of the rear end of the container is connected with the rear overturning support assembly, the rear overturning support assembly is rotatably arranged on the single-point suspension, the single-point suspension is connected with the traveling system, one end of the lifting oil cylinder is arranged above the traction assembly through a pin shaft, and the other end of the lifting oil cylinder is connected to the front end of the container. Compared with the prior art: the backward-turning self-discharging semitrailer can save longitudinal beams, reduce the self weight of the frame, reduce the gravity center of goods when the semitrailer turns and discharges goods and improve the stability. The backward tipping self-unloading semitrailer is provided with the tripod, has a supporting function, prevents side tipping, and can indirectly pull the traveling system to slowly move forwards when the lifting oil cylinder extends out, so that the embarrassment that the semitrailer cannot get rid of the vehicle due to the fact that unloaded goods bury the tires of the semitrailer is avoided.

Description

Good back of stability turns over self-discharging semitrailer

Technical Field

The invention belongs to the field of semitrailer operation economy and use safety, and particularly relates to a backward-turning self-discharging semitrailer with good stability.

Background

The back-tipping self-unloading semitrailer comprises a container and a frame assembly, wherein the frame assembly comprises a longitudinal beam assembly, a traction assembly, a mechanical series connection/air suspension system, a traveling system, a lifting oil cylinder and the like, and the container is connected with the frame assembly through a turnover shaft arranged at the tail part of the longitudinal beam. The cargo containers are usually rectangular or U-shaped structures, and the rear door of the cargo container has a tail door which is opened by the self-gravity or the impact force of the cargo during unloading.

During the operation process of the backward-turning self-discharging semitrailer, goods sequentially pass through the box body and the left and right longitudinal beams to transfer loads to the traction assembly and the suspension system. When unloading, the frame assembly is fixed relative to the ground, one end of the lifting oil cylinder acts on the left longitudinal beam and the right longitudinal beam of the frame assembly, the other end of the lifting oil cylinder acts on the front part or the belly part of the box body of the packing box, and the packing box is jacked up by utilizing the rotation function of the turnover shaft, so that the function of dumping the goods is achieved.

Referring to the attached drawings 1-2, the conventional back-tipping self-unloading semitrailer is provided with longitudinal beams, so that the frame is heavy in weight. And because the longitudinal beam is arranged above the axle, and the overturning shaft is arranged on the longitudinal beam, the center of gravity of the goods is high when the goods is unloaded in running and overturning, the stability is poor, and the container is easy to swing left and right and even turn over.

For example, the prior patent with the application number of CN200920178225.0 discloses a light-duty rear-turning semitrailer, which comprises an oil cylinder, a front beam, wheels, a stabilizing device and manganese plate short shafts, wherein the short shafts are fixed on a crossbeam, the stabilizing device is arranged on two corresponding sides of the rear end of a carriage, the upper part and the lower part of the stabilizing device are spaced by three centimeters, and a plate spring with an axle is arranged below the stabilizing device. The leaf spring in this patent is installed on the girder, and when unloading, the leaf spring that front axle and axis are located has left the ground along with the girder lifting, and whole lean on the rear axle to bear, and such structure very easily produces the tire burst or the broken axle condition, and stability is poor.

If the application number is CN202121465104.1 a formula of turning over backward self-discharging semitrailer again, including frame and push pedal mechanism, the top of frame is equipped with the railway carriage or compartment body and hydraulic cylinder, the bottom of the railway carriage or compartment body is equipped with the bottom plate, the below fixedly connected with girder of bottom plate, the left and right sides of the railway carriage or compartment body is equipped with the curb plate respectively, and the rear end of curb plate is equipped with the bellying, the front end of the railway carriage or compartment body is equipped with preceding sealing frame, the rear end of the railway carriage or compartment body is equipped with the back plate, hydraulic cylinder's hydro-cylinder seat fixed mounting is on preceding sealing frame, hydraulic cylinder's piston rod articulates on the frame. As can be seen from the attached drawings, the overturning shaft is arranged on the main beam and is positioned above the suspension axle, so that the problem of poor stability exists when the unloading is lifted.

Disclosure of Invention

In order to solve the problems, the invention mainly aims to provide a backward-turning self-unloading semitrailer with good stability, which can save longitudinal beams, reduce the self weight of a frame, reduce the gravity center of goods when the semitrailer turns over for unloading and improve the stability;

the invention also aims to provide a backward-turning self-discharging semitrailer with good stability, which is provided with a tripod, has a supporting function, prevents a container from deviating to one side due to uneven ground or gravity center shift of goods, damages an oil cylinder and even causes normal side turning, and can indirectly pull a traveling system to slowly move forward, so that the dilemma that the vehicle cannot get out of the way due to the fact that unloaded goods bury the tires of the semitrailer is avoided;

still another object of the present invention is to provide a tip-back dump semi trailer with good stability, which can obtain a large opening angle in a state of opening the rear door, and is convenient for full unloading.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the invention provides a backward turning self-discharging semitrailer with good stability, which comprises a traction assembly, a cargo box, a backward turning support assembly, a single-point suspension, a traveling system and a lifting oil cylinder, wherein the bottom of the rear end of the cargo box is connected with the backward turning support assembly, the backward turning support assembly is rotatably arranged on the single-point suspension, the single-point suspension is connected with the traveling system, one end of the lifting oil cylinder is arranged above the traction assembly through a pin shaft, and the other end of the lifting oil cylinder is connected with the front end of the cargo box. The utility model provides a back tip self-discharging semitrailer realizes the support rotation function of packing box through back tip support assembly, can save the longeron, reduces the dead weight of frame. And the rear overturning bracket assembly is arranged on the single-point suspension and is at the same height with the axle on the single-point suspension, so that the center of gravity of goods can be reduced when the semitrailer overturns for unloading, and the stability is improved.

Furthermore, a central shaft is arranged on the single-point suspension, axles are further arranged on the front side and the rear side of the central shaft, and the rear overturning support assembly is connected to the central shaft in a rotating mode. In this application, the center pin that hangs the single point is as the trip shaft, replaces original trip shaft, realizes a dual-purpose, both can balance the atress of fore-and-aft axle in the traveling system, plays the effect of bearing, buffering (the fore-and-aft axle theoretically loads the same during the upset), can realize the upset function of packing box again. When the lifting oil cylinder stretches out, the container rotates around the central shaft hung at a single point and is unloaded, the central shaft hung at the single point plays a role of an independent overturning shaft on the longitudinal beam of the existing self-discharging semitrailer, and the central shaft hung at the single point is very low from the ground, so that the gravity center of the container in a lifting state is greatly reduced, and the stability can be greatly improved.

Furthermore, this back tip self-discharging semitrailer is still including the tripod assembly, the tripod assembly is including connecting rod and telescopic supporting legs, the middle part at the connecting rod is connected to the supporting legs, connecting rod one end with pull the assembly and pass through the round pin hub connection, the other end and the bottom both sides of packing box pass through the round pin hub connection. When the vehicle runs normally, the tripod is equivalent to a girder and drags the vehicle to move forward. During unloading, the tripod plays the effect of stabilizer bar, prevents that uneven ground or goods focus skew from causing the packing box to incline to one side, damages the hydro-cylinder and even causes normal side-turning on one's side. In addition, because the tripod is connected with the middle position of the container, the container is connected with the rear overturning support assembly and the travelling system, when the lifting oil cylinder extends out, one end of the tripod assembly connected with the container can rise along with the increase of the lifting angle of the container, the included angle between the tripod and the bottom plate of the container changes, the travelling system can be indirectly pulled to slowly move forwards according to the balance of force, and the dilemma that the vehicle cannot get rid of the trouble caused by the fact that the unloaded goods bury the tire of the semi-trailer is avoided.

Furthermore, the tail of the container is provided with a rear door, the lower end of the rear door is provided with a pneumatic control door lock, and the left side and the right side of the upper end of the rear door are respectively provided with an oil cylinder. In the application, the pneumatic control device is responsible for locking or unlocking, the oil cylinder is responsible for pushing or closing the back door, and the two devices work independently. When the cargo box is in operation, the door lock is automatically opened or locked through the air control device, and the rear door of the cargo box can be slowly opened or closed through the oil cylinder. Different from current semi-mounted tipper only rely on self gravity to open the back door, the structure of this application can obtain a great opening angle under the state of opening the back door, is convenient for fully unload. Meanwhile, in the operation process of the self-discharging semitrailer, the container plays a role in bearing besides loading, the left longitudinal beam and the right longitudinal beam of the existing self-discharging semitrailer are replaced, and the weight of the self-discharging semitrailer is greatly reduced.

The invention has the advantages that compared with the prior art:

firstly, the rear overturning self-discharging semitrailer realizes the supporting and rotating functions of a container by arranging the rear overturning bracket assembly, can save longitudinal beams and reduce the dead weight of a frame, and the rear overturning bracket assembly is arranged on a single-point suspension and is at the same height with an axle on the single-point suspension, so that the center of gravity of goods can be reduced when the semitrailer overturns and discharges, and the stability is improved;

secondly, the center shaft hung at a single point of the rear dump semi-trailer is used as a turnover shaft to replace the original turnover shaft, so that one-shaft dual-purpose is realized, the stress of the front shaft and the rear shaft in a walking system can be balanced, the effects of bearing and buffering are achieved, the turnover function of a container can be realized, the gravity center of the container in a lifting state is reduced, and the stability is improved;

thirdly, the backward turning self-discharging semitrailer is provided with the tripod, so that the semitrailer has a supporting function, prevents the situation that a container is deflected to one side due to uneven ground or the gravity center shift of goods, damages an oil cylinder and even causes normal lateral turning, and can indirectly pull a traveling system to slowly move forwards when a lifting oil cylinder extends out, thereby avoiding the embarrassment that the vehicle cannot get rid of the trouble because the unloaded goods bury the tires of the semitrailer;

finally, the cargo box of the back-tipping self-unloading semitrailer is provided with the pneumatic control door lock and the oil cylinder, and a larger opening angle can be obtained when the back door is opened, so that the semitrailer can be conveniently and fully unloaded.

Drawings

Fig. 1 is a schematic structural view of a conventional tip-back dump semitrailer in the background art.

Fig. 2 is a schematic structural view of a dump state of a prior art dump semi-trailer in the background art.

Fig. 3 is a schematic structural view of the dump truck semitrailer of this embodiment.

Fig. 4 is a schematic structural view of the dump state of the backhoe semitrailer of this embodiment.

Fig. 5 is a schematic structural view of the rear roll-over stand assembly and the single-point suspension in the present embodiment.

Figure 6 is a side view of the tripod assembly of the present embodiment.

Figure 7 is a top plan view of the tripod assembly of the present embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

referring to fig. 3-7, the present embodiment provides a back-tipping self-unloading semitrailer with good stability, which includes a traction assembly 1, a cargo box 2, a back-tipping support assembly 3, a single-point suspension 4, a traveling system 5, and a lift cylinder 6, wherein the bottom of the back end of the cargo box 2 is connected to the back-tipping support assembly 3, the back-tipping support assembly 3 is rotatably installed on the single-point suspension 4, the single-point suspension 4 is connected to the traveling system 5, one end of the lift cylinder 6 is installed above the traction assembly 1 through a pin, and the other end is connected to the front end of the cargo box 2. The utility model provides a back tip self-discharging semitrailer realizes the support rotation function of packing box 2 through back tip support assembly 3, can save the longeron, reduces the dead weight of frame. And the rear overturning bracket assembly 3 is arranged on the single-point suspension 4 and is at the same height with the axle on the single-point suspension 4, so that the center of gravity of goods can be reduced when the semitrailer is overturned for unloading, and the stability is improved.

Furthermore, a central shaft 41 is arranged on the single-point suspension 4, axles 42 are further arranged on the front side and the rear side of the central shaft 41, and the rear overturning bracket assembly 3 is rotatably connected to the central shaft 41. In the application, the central shaft 41 of the single-point suspension 4 is used as a turning shaft to replace the original turning shaft, so that one shaft has two purposes, the stress of the front shaft and the rear shaft in the traveling system 5 can be balanced, the effects of bearing and buffering are achieved (the loads of the front shaft and the rear shaft are the same theoretically during turning), and the turning function of the container 2 can be realized. When the lifting oil cylinder 6 extends out, the container 2 rotates around the central shaft 41 of the single-point suspension 4 and realizes unloading, the central shaft 41 of the single-point suspension 4 simultaneously plays a role of an independent overturning shaft on the longitudinal beam of the existing self-discharging semitrailer, and because the central shaft 41 of the single-point suspension 4 is very low from the ground, the gravity center of the container 2 in a lifting state is greatly reduced, and the stability can be greatly improved.

Further, the back-tipping self-discharging semitrailer further comprises a tripod assembly 7, the tripod assembly 7 comprises a connecting rod 71 and telescopic supporting feet 72, the supporting feet 72 are connected to the middle of the connecting rod 71, one end of the connecting rod 71 is connected with the traction assembly 1 through a pin shaft, and the other end of the connecting rod 71 is connected with two sides of the bottom of the container 2 through pin shafts. When the vehicle runs normally, the tripod is equivalent to a girder and drags the vehicle to move forward. When unloading, the tripod plays the effect of stabilizer bar, prevents that uneven ground or goods focus skew from causing packing box 2 erroneous tendency one side, damages the hydro-cylinder and even causes normal side to turn on one's side. In addition, because the tripod is connected with 2 intermediate positions of packing box, and packing box 2 links to each other with back upset support assembly 3, traveling system 5, when lifting cylinder 6 stretches out, the one end that tripod assembly 7 is connected with packing box 2 can rise along with 2 lifting angle's of packing box increase, the contained angle of tripod and 2 bottom plates of packing box changes, according to the balance of force, can indirectly stimulate traveling system 5 and slowly move forward, has avoided the goods of unloading to bury the semitrailer tire like this and has leaded to the embarrassing situation that the vehicle can't get rid of.

Further, the tail part of the cargo box 2 is provided with a rear door 21, the lower end of the rear door 21 is provided with an air control door lock 22, and the left side and the right side of the upper end of the rear door 21 are respectively provided with an oil cylinder 23. In the application, the air control device is responsible for locking or unlocking, the oil cylinder 23 is responsible for pushing or closing the rear door 21, and the two devices work independently. In operation, the door lock is automatically opened or locked through an air control device, and the rear door 21 of the container 2 can be slowly opened or closed through the oil cylinder 23. Different from current semitrailer tipper only rely on self gravity to open back door 21, the structure of this application can obtain a great opening angle under the state of opening back door 21, is convenient for fully unload. Meanwhile, in the operation process of the self-discharging semitrailer, the container 2 plays a role in bearing besides loading, replaces the left and right longitudinal beams of the existing self-discharging semitrailer, and greatly lightens the weight of the self-discharging semitrailer.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a tip-back self-discharging semitrailer that stability is good, its characterized in that is including drawing assembly, packing box, tip-back support assembly, single-point and hang, traveling system, lift hydro-cylinder, and the rear end bottom of packing box is connected with tip-back support assembly, and tip-back support assembly is rotatory to be installed on the single-point hangs, and the single-point hangs and is connected with traveling system, and lift hydro-cylinder one end is installed in drawing the assembly top through the round pin axle, and the other end is connected the front end at the packing box.

2. The rear dump semi-trailer with good stability as claimed in claim 1, wherein a central shaft is arranged on the single-point suspension, axles are further arranged on the front and rear sides of the central shaft, and the rear dump truck assembly is rotatably connected to the central shaft.

3. The semi-trailer with the function of backward dumping and the function of self-dumping as per claim 1, characterized in that it further comprises a tripod assembly, said tripod assembly comprises a connecting rod and a telescopic supporting foot, said supporting foot is connected to the middle of the connecting rod, one end of the connecting rod is connected to the traction assembly by a pin, and the other end is connected to the two sides of the bottom of the cargo box by pins.

4. The back-tipping self-discharging semitrailer with good stability as claimed in claim 1, is characterized in that a back door is arranged at the tail of the container, a pneumatic door lock is arranged at the lower end of the back door, and oil cylinders are respectively arranged at the left side and the right side of the upper end of the back door.