CN201321099Y - Tipping freight trailer - Google Patents

Abstract

The utility model provides a freight self-unloading trailer, which comprises a trailer chassis and a box body installed on the trailer chassis, wherein the box body includes several front side turning boxes arranged sequentially along the longitudinal direction of the trailer and capable of independently unloading and a rear compartment. The volume of the plurality of compartments in the utility model is equivalent to the volume of an integral compartment in the prior art, so the volume of each compartment is relatively small, and the weight of the goods in the compartment is relatively light. When dumping a single The risk of overturning is greatly reduced when the goods in the compartment are removed. In addition, when unloading, the goods in one of the compartments are dumped first. At this time, the weight of the other compartment and the goods in it play the role of counterweight. When the goods in the last compartment are dumped, The dumping box also acts as a counterweight, which further reduces the risk of rollover. Therefore, since the cargo dump trailer of the utility model is provided with a plurality of compartments, it can be unloaded in multiple order, and its unloading safety is very high.

Description

Freight dump trailer

technical field

The utility model relates to a cargo dump trailer.

Background technique

Existing freight dump trailers include two basic structural forms: side-turning freight dump trailers and rear-turning freight dump trailers.

As shown in Fig. 1A, Fig. 1B and Fig. 1C, the structure of the existing rollover freight dump trailer includes a trailer chassis 1, a walking system installed under the trailer chassis 1 and a side rail mounted on the trailer chassis 1. Turnover body 2. Wherein the rollover car body 2 includes a car body frame 21, a car roof plate, a car floor plate, a front end plate 23, a rear end plate, a car side plate and a side door 22 installed on the frame. One side below the box body frame 21 is rotatably connected to the trailer chassis 1 . The top end of the side compartment door 22 is hingedly connected to the upper end of the compartment frame 21 by a hinge 3 , and a door opening mechanism 4 is arranged between the side compartment door 22 and the compartment frame 21 . A power element 24 for lifting the rollover car body 2 is installed between the bottom of the car body frame 21 and the trailer chassis 1 . When this kind of rollover freight dump trailer is unloading, the power element 24 is activated, the rollover body 2 rotates, and the rollover body 2 is dumped to one side as a whole. Because the weight of the cargo is too heavy, if it is not properly controlled, it is easy to cause Risk of vehicle tipping over on the tipping side.

As shown in FIG. 1D , the existing structure of a rear-turning freight dump trailer includes a trailer chassis 1 , a running system installed under the trailer chassis 1 and a rear dump box body 5 installed on the trailer chassis 1 . Wherein the rollover car body 5 includes a car body frame 51 , a car roof plate, a car floor plate, a front end plate, a side car plate and a rear door 52 installed on the frame. The lower rear end of the box body frame 51 is rotatably connected to the trailer chassis 1 through a rotating shaft 53 . A rear door hinge seat 54 is installed on the rear end of the car body frame 51 , and the hinged clamping arm 55 of the rear door hinge seat 54 is fixedly connected on the rear door 52 for opening the rear door 52 . A power element 56 is installed between the front end of the box frame 51 and the trailer chassis 1 . When this kind of back-turning freight dump trailer is unloading, the power element 56, the back-turning box body 5 rotates around the rotating shaft 53, and the rear end of the back-turning box body 5 is lifted from the ground to a very high height, The traction main engine is light in weight and does not have a large counterweight effect on the rear body. If the operation is slightly improper or encounters unexpected conditions such as strong winds, it is easy to turn over backwards. Therefore, there is a potential safety hazard of easy rollover when unloading existing dump trailers. Therefore, avoiding the potential safety hazard of the existing dump trailer in the unloading process and improving its unloading safety are urgent problems to be solved.

Utility model content

The purpose of the utility model is to provide a cargo dump trailer with high unloading safety in view of the above-mentioned deficiencies in the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

The freight dump trailer described in the utility model includes a trailer chassis and a box body installed on the trailer chassis, wherein the box body includes several front rollover boxes arranged in sequence along the longitudinal direction of the trailer and capable of independently unloading cargo and A rear body.

One side of the bottom of the front rollover body is rotatably connected to one side above the trailer chassis, and a rollover lifting mechanism is installed between the other side and the trailer chassis.

One side of the bottom of the rear compartment is rotatably connected to one side above the trailer chassis, and a rollover lifting mechanism is installed between the other side and the trailer chassis.

The tail end of the bottom of the rear box body is rotatably connected to the rear end of the trailer chassis, and a rear turning and lifting mechanism is installed between the rear box body and the trailer chassis).

One of the side surfaces or both sides of the front rollover body is provided with a reinforced horizontal plate, and a side flip door is installed under the reinforced horizontal plate.

One side or both sides of the rear compartment body are equipped with spare side flip doors.

The advantages and positive effects of the freight dump trailer described in the utility model are: since the utility model is longitudinally provided with a plurality of front compartments and a rear compartment that can independently unload cargo, the volume of these compartments is equivalent to The volume of an entire box in the prior art, so the volume of each box is relatively small, the goods in the box are relatively small, and the weight is relatively light. When dumping the goods in a single box, the risk of overturning greatly reduced. In addition, when unloading, the goods in one of the compartments are dumped first. At this time, the weight of the other compartment and the goods in it play the role of counterweight. When the goods in the last compartment are dumped, The dumping box also acts as a counterweight, which further reduces the risk of rollover. Therefore, since the cargo dump trailer of the utility model is provided with a plurality of compartments, it can be unloaded in multiple order, and its unloading safety is very high.

The above and other objects, features and advantages of the present utility model will be more apparent through the following description of preferred embodiments with reference to the accompanying drawings.

Description of drawings

Fig. 1A is a structural schematic diagram of an existing rollover freight dump trailer;

Figure 1B is a left side view of Figure 1, showing a normal loading state;

Fig. 1C is the left side view of Fig. 1, represents unloading state;

Fig. 1D is a structural schematic diagram of an existing rear-turning freight dump trailer;

Fig. 2 is the structural representation of the freight dump trailer of the present utility model;

Fig. 3 is a structural schematic view of the unloading state of the rear compartment of the freight dump trailer of the present invention.

Detailed ways

Specific embodiments of the present invention will be described in detail below. It should be noted that the embodiments described here are only used for illustration, not for limiting the present utility model.

As shown in FIG. 2 , the freight dump trailer of the present invention includes a trailer chassis 1 and a car body installed on the trailer chassis 1 . The car body includes several front rollover car bodies and a rear car body that can be independently unloaded and arranged in sequence along the longitudinal direction of the trailer. In this embodiment, there is only one front rollover box body, and according to the length of the trailer, two, three, and other equal numbers of front rollover box bodies can be provided. The dumping directions of several compartments can be the same or different, and can be designed according to the sound of the cargo. The rear compartment can be a rollover compartment. The preferred structural form of the rear box body is a rear-turning type that dumps cargo to the rear of the box body, so that the stress situation can be balanced as much as possible during the unloading process.

As shown in Fig. 2 and Fig. 3, the rear-turning rear box body 9 includes a rear-turning box frame 91 whose bottom rear end is connected to the rear end of the trailer chassis 1 through a rotating shaft 96, and a front-end plate installed at the front end of the frame. , the rear flap door 92 installed at the rear end of the frame and some side panels installed on both sides of the frame. A rear flap door opening mechanism 94 is installed between the rear flap door 92 and the rear flap body frame 91 . The rear flap door opening mechanism 94 can be the same hinge seat as the prior art, and the hinge arm 97 wherein is fixedly connected on the rear flap door 92, and the rear flap door opening mechanism 94 also can be other structural forms. Between the front end of the rear body frame 91 and the trailer chassis 1, a rear lift cylinder 93 for lifting the rear body 9 is installed. In the utility model, a spare side turning door 95 can be installed on one of the side surfaces or both sides of the back turning box body frame 91, and a door opening mechanism is installed between the back turning side turning door 95 and the back turning box body frame 91. When turning over and unloading, the standby side turning door 95 can be directly opened for unloading.

As shown in Figure 2, the front rollover box body 8 includes a rollover box body frame 81 that is rotatably connected to the upper side of the trailer chassis 1 at one side of the bottom, and several pieces that are installed on one side of the rollover box body frame 81. Side panels, some fan side-turn doors 82 on the other side of the side-turning box body frame 81 and end plates installed on the front and rear sides of the side-turning box body frame 81. Between the bottom of the rollover body frame 81 and the trailer chassis 1, several rollover lift cylinders 83 for lifting the rollover type box body 8 are installed. In the present utility model, side-turning doors 82 may also be arranged on both sides without side panels. A side-turning door mechanism 84 is installed between the side-turning door 82 and the side-turning box body frame 81 . The door opening mechanism 84 can be a mobile phone mechanism or an automatic mechanism. In the present utility model, a reinforcement horizontal plate 86 is arranged on the upper side of the side surface of the side-turning door 82 and the side-turning box body frame 81 , and the side-turning door 82 is installed below the reinforcement horizontal plate 86 . This structure reduces the opening of the side-turning door 82 without affecting the unloading situation, and can enhance the strength of the car body when it contains goods, making it stronger and more durable, which is beneficial to prolonging the service life of the car body.

As shown in Figure 3, when using the freight dump trailer of the present utility model to unload, the front box body adopts the mode of side unloading, and the rear box body adopts the mode of rear unloading. First dump the goods in the rear compartment, start the back turning lifting oil cylinder 93, and the back turning lifting oil cylinder 93 acts on the rear end of the back turning rear compartment body 9 to make it rotate around the rotating shaft 96. When turning to a certain angle, The rear end of the rear compartment body 9 is lifted to a certain height, and the rear flap door opening mechanism 94 opens the rear flap door 92 to dump goods. During the lifting process of the rear box body 9, since the length of the rear box body 9 is relatively short, the maximum height lifted is also relatively low, that is, the center of gravity of the goods in the box body is relatively low, so it is not easy to overturn; The side-turning box body 8 at the front part of the trailer underframe 1 and the weight of the goods and the tractor in it play the role of counterweight in the lifting process of the rear box body 9, thereby further reducing the possibility of rear overturning. Since the cargo is unloaded to the rear of the vehicle, the tires will not be buried. After the cargo of the rear compartment 9 at the rear is dumped, the piston rod of the lifting cylinder 93 is retracted, and the rear compartment 9 gets back to the original position. Then start to unload the goods in the rollover car body 8 at the front, start the rollover lift cylinder 83 to make the rollover car body frame 81 rotate to the side of the car body, when turning over a certain angle, the sideways door mechanism 84 Open the side turning door 82 to dump goods, if the side turning door opening mechanism 84 is a manual mechanism, then the side turning door needs to be opened in advance. During the rotation process of the side-turning box body frame 81, since the box body volume is small, the weight of the cargo is correspondingly small, and the weight of the rear box body 9 at the rear and the tractor is added during the lateral unloading process of the front box body. It plays a certain role of counterweight, so the risk of overturning during side unloading is further reduced.

While the invention has been described with reference to a few exemplary embodiments, it is understood that the words which have been used are words of description and illustration, rather than of limitation. Since the invention can be embodied in various forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly defined within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (6)

1. freight dump trailer, comprise trailer underframe (1) and be installed in envelope above the trailer underframe (1), it is characterized in that described envelope comprises envelope (9) behind turn on one's side before several of can independently unloading of vertically being disposed in order of trailer envelope (8) and.

2. freight dump trailer according to claim 1 is characterized in that a side of described preceding rollover envelope bottom is rotatably connected on a side above the described trailer underframe (1), and rollover lifting mechanism (83) is installed between opposite side and the trailer underframe (1).

3. freight dump trailer according to claim 2 is characterized in that envelope bottom, described back one side is rotatably connected on a side above the described trailer underframe (1), is equipped with the rollover lifting mechanism between opposite side and the trailer underframe (1).

4. freight dump trailer according to claim 2 is characterized in that envelope bottom, described back tail end is rotatably connected on described trailer underframe (1) rearward end, turns over lifting mechanism (93) after being equipped with between back envelope and the trailer underframe (1).

5. freight dump trailer according to claim 2 is characterized in that a wherein side of described preceding rollover envelope (8) or top, two sides are provided with reinforcing transverse slat (86), are equipped with rollover door (82) below this reinforcing transverse slat (86).

6. freight dump trailer according to claim 4 is characterized in that a wherein side or the two sides of described back envelope (9) are equipped with prepped side overhead door (95).

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