CN107298134B - A self-loading and unloading crawler transport vehicle - Google Patents

Abstract

The invention discloses a self-loading and unloading crawler carrier, which comprises a crawler beam, a frame, a rotary platform, a suspension arm, a power box, a pitching oil cylinder, a crawler beam bracket and a transport box, wherein the transport box is a split transport box, the left and right independent transport boxes are respectively arranged on the crawler beam, the crawler beam bracket is arranged on the crawler beam, and the two transport boxes are respectively arranged on the left and right crawler beam brackets; one end of the frame is connected with the power box, the other end of the frame is overlapped with the crawler beams, and the telescopic rail transfer of the crawler chassis is realized by changing the overlapping length of the frame and the crawler beams and changing the distance between the two crawler beams; the rotary platform is arranged on the power box, the suspension arm and the pitching oil cylinder are arranged on the rotary platform, the telescopic end of the pitching oil cylinder is hinged with the middle part of the suspension arm, pitching of the suspension arm is achieved, and the rotary platform drives the suspension arm to achieve a rotary function. The requirements of the whole machine for the stability of the whole machine for transportation and different transportation widths are met, the gravity center position of the whole machine can be adjusted through rail transformation in the hoisting process, and the stability of the whole machine is improved.

Description

A self-loading and unloading crawler transport vehicle

technical field

The invention relates to a self-loading and unloading crawler transport vehicle, in particular to a self-loading and unloading crawler transport vehicle for hoisting and transportation on special terrain.

Background technique

The crawler transport vehicle belongs to the large-scale transportation equipment relying on the crawler walking device under special terrain. At present, there are mainly crawler pipe transport machines, crawler transport vehicles and other equipment. The crawler pipe conveyor is an important auxiliary construction equipment in the construction of oil and gas pipelines. It is mainly used for long-distance transportation of steel pipes in the construction of large-diameter oil and gas pipelines. Crawler transport vehicles have high off-road performance, adapt to harsh road conditions such as ditches, steep slopes, and steps, and are widely used in agriculture, exploration, deep forest, fire protection, military and other fields. According to the different maximum speed, the function of the whole machine and the structural form of the crawler chassis are also very different.

At present, most of the water conservancy and hydropower, oil pipeline, and wind power construction projects are carried out in complex terrain such as mountains, hills, deserts, and Gobi Desert. Ordinary wheeled transport vehicles have poor adaptability and high transportation risks. Most of them use tracked engineering vehicles such as loaders, pipe layerers, pipe transporters, and crawler transport vehicles. Loaders and pipelayers can only transport small-diameter steel pipes due to the limited space of the host machine, and can only transport up to 2 pipes for large-diameter equipment, and the walking speed is slow and the transportation efficiency is low. In the field of pipeline transportation, there are many pipe transportation machines, which can only transport two large-diameter steel pipes at most, and have a single function.

Disadvantages of the prior art: At present, crawler pipe transportation machines are mainly used in the field of oil pipeline laying, which can only meet two steel pipes with a diameter greater than 1m, and cannot meet the transportation of four large-diameter steel pipes. The crawler transport vehicle mainly adopts a crawler chassis with a suspension, which has a small transport weight and a high driving speed, and does not have the self-disassembly function. Crawler conveyors are mainly high-speed crawler chassis with low carrying capacity, which is not suitable for heavy equipment mountain transportation.

Contents of the invention

Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a self-loading and unloading crawler transport vehicle, which has multiple functions such as wireless control, telescopic track change, and self-loading. The use of container-type transport platforms can meet other cargo transport requirements, with strong adaptability and high transport efficiency.

Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is:

A self-loading and unloading crawler transport vehicle is characterized in that it includes a crawler beam, a vehicle frame, a slewing platform, a boom, a power box, a pitching oil cylinder, a crawler beam bracket, and a transport box,

The transport box is a split transport box, with an independent transport box on the left and right sides, the track beam bracket is installed on the track beam, and the two transport boxes are respectively installed on the left and right track beam brackets;

One end of the frame is connected to the power box, and the other end of the frame is lapped with the track beam. By changing the lap length of the frame and the track beam, the track beam is pushed outward, and the distance between the two track beams is changed to perform the crawler chassis. telescopic rail change;

The slewing platform is set on the power box, the boom and the pitching cylinder are installed on the slewing platform, the telescoping end of the pitching cylinder is hinged with the middle part of the boom, and the boom is pitched, and the boom is driven by the slewing platform to realize the slewing function.

As a preferred solution, the self-loading and unloading crawler transport vehicle is characterized in that: it also includes a wireless remote controller, the crawler transport vehicle has no cab, a controller and a wireless signal receiver are installed on the crawler transport vehicle, and the wireless signal receiver and the control The wireless signal receiver is connected with the wireless remote control signal, receives the signal transmitted by the wireless remote control, and the controller controls the power box to make corresponding actions; rely on the wireless remote control to control various actions of the vehicle, realizing wireless Human driving, and realize long-distance wireless monitoring and operation through wireless remote sensing technology.

As a preferred solution, the self-loading and unloading crawler transport vehicle is characterized in that it further includes a traction saddle connected to the power box for performing the function of a crawler tractor.

As a preferred solution, the self-loading and unloading crawler transport vehicle is characterized in that: the crawler beam bracket is fixedly welded on the crawler beam.

As a preferred solution, the self-loading and unloading crawler transport vehicle is characterized in that: the track beam bracket is an assembled bracket, and the assembled bracket can be rotated forward and backward relative to the track beam to adjust the height of the bracket, and rotated left and right to adjust Left and right inclination, so as to timely adjust the front and rear center of gravity positions of the transport box of the whole machine according to the longitudinal and transverse slopes of the mountain.

As a preferred solution, the self-loading and unloading crawler transport vehicle is characterized in that: the crawler beam bracket is a lifting structure, thereby changing the front and rear heights of the crawler beam bracket, adjusting the angle between the transport box and the crawler beam, and performing angle conversion according to different climbing gradients. Change the position of the center of gravity of the machine.

As a preferred solution, the self-loading and unloading crawler transport vehicle is characterized in that: a push cylinder and a swing cylinder are arranged between the transport box and the crawler beam bracket to move the transport box back and forth, left and right, and adjust the front and rear, left and right positions of the transport box In this way, the position of the center of gravity of the whole machine can be changed to meet the requirements of the vertical and horizontal slope of the mountain.

As a preferred solution, the self-loading and unloading crawler transport vehicle is characterized in that: the transport boxes are double transport platforms, and each transport box has a double-layer structure for placing goods.

Beneficial effects: The self-loading and unloading crawler transport vehicle provided by the present invention has the following advantages: (1) It can solve the transportation capacity of large-diameter steel pipes, and can meet the transportation needs of four 1.4-meter steel pipes at most, with strong transportation capacity and greatly improved transportation efficiency . (2) The weight of the transport box is directly transmitted to the rollers and track shoes through the track beam bracket, so as to avoid the uneven force on the four wheels and the belt caused by the traditional crawler traveling device passing the weight to the track beam through the frame, resulting in abnormalities in the four wheels and the belt wear and reduce service life. (3) The telescopic chassis rail change device is used to meet the stability requirements of the whole machine transportation and different transportation widths, and the position of the center of gravity of the whole machine can be adjusted by changing the rail during the hoisting process to improve the stability of the whole machine. (4) The transport box or track beam bracket can move left and right, forward and backward, improve the climbing performance of the whole machine, and meet the stability requirements of the whole machine during longitudinal and transverse slope transportation. (5) With more expansion functions, it is not only used for container transportation, but also can add tools such as traction saddles and bulldozer blades to realize one machine with multiple functions; it is a multi-functional transport machine that can meet functions such as hoisting, transportation, and traction Integration, equipment utilization is very high. (6) The present invention adopts unmanned control, which can realize long-distance remote control operation, and improves the safety of construction personnel in dangerous areas.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the telescopic track change of the crawler chassis of the present invention;

Fig. 3 is a schematic diagram of the transportation state of the whole machine of the present invention;

Fig. 4 is the schematic diagram of climbing state of the present invention;

Fig. 5 is a schematic diagram of changing the position of the left and right center of gravity of the transport box in the present invention;

Fig. 6 is a schematic diagram of forward and backward movement of the transport box in the present invention;

In the figure: crawler beam 1, vehicle frame 5, slewing platform 2, power box 3, pitch cylinder 4, crawler beam bracket 6, transport box 7, steel pipe 8, boom 9, first bracket support rod 10, swing cylinder 11. The second bracket support rod 12 and the push cylinder 13.

Detailed ways

The present invention will be further described below in conjunction with specific examples.

As shown in Figures 1 to 4, it is a self-loading and unloading crawler transport vehicle of the present invention, including a crawler beam 1, a vehicle frame 5, a slewing platform 2, a boom 9, a power box 3, a pitch cylinder 4, and a crawler beam bracket 6. The transport box 7 and the wireless remote control, the track beam bracket 6 is connected to the track beam 1, the two transport boxes 7 are respectively installed on the left and right track beam brackets 6, and one end of the vehicle frame 5 is connected to the power box 3, The other end of the vehicle frame 5 is overlapped with the crawler beam 1, the slewing platform 2 is arranged on the power box 3, the slewing platform 2 is provided with a boom 9 and a pitch cylinder 4, and the telescopic end of the pitch cylinder 4 is hinged with the middle part of the boom 9, The pitching of the boom is realized through the expansion and contraction of the pitching cylinder 4, and the boom is driven by the slewing platform 2 to realize the slewing function.

The boom of the invention not only has the function of assisting self-loading and unloading, but also can adjust the center of gravity of the whole machine through the rotation and pitch of the boom during transportation, thereby improving the stability of the whole machine. During the transportation of the crawler transport vehicle, the boom can be rotated to the rear, the track beam can be changed to a narrow gauge, and the boom can be adjusted downward to control the height of the whole machine, so as to meet the transportation regulations. The transportation status of the whole machine is shown in Figure 3.

1. Transport box platform; the form of the transport box of the present invention is a split transport box, with an independent transport box on the left and right sides. In the present invention, the transport box 7 is installed on the track beam bracket 6, and the load of transported goods is directly transmitted to the track beam 1. Compared with the existing track transport vehicle, the transport weight is transmitted to the frame, and then transmitted to the track beam through the frame. , has the following advantages: First, it can reduce the weight of the vehicle frame, reduce the section height of the vehicle frame, and reduce the height of the center of gravity of the whole machine. Second, the transport box can change the left and right positions of the center of gravity along with the telescopic track change of the crawler beam. Third, the load of the transported goods is directly transmitted to the track frame, so that the track beam rollers are evenly stressed, which is different from the conventional crawler conveyor that transmits the load to the track beam through the frame, thereby avoiding the large force on the inside of the track beam and the external force on the track beam. The small force will cause severe wear on the inner side of the rollers and track shoes, which will affect the service life and smoothness of the four wheels. The structure of the transport box can be changed to a container, a pipe rack, a self-disassembling trailer, or other fixtures according to actual transport needs. Meet the needs of different transportation conditions. It can solve the transportation capacity of large-diameter steel pipes, and can meet the transportation needs of four 1.4-meter steel pipes at most. The transportation capacity is strong and the transportation efficiency is greatly improved.

2. As shown in Figure 2, the crawler transport vehicle of the present invention can realize track beam unilateral or bilateral track change. One end of the vehicle frame 5 is connected to the power box 3, and the other end of the vehicle frame 5 is overlapped with the track beam 1. By changing The overlapping length of the frame 5 and the track beam 1, the oil cylinder pushes the track beam outward, changes the distance between the two track beams, realizes the telescopic track change of the track chassis, adapts to different road transportation widths, and can increase the overall machine Lateral stability, adapting to larger cross slopes. During the transportation process, the gauge can be reduced to meet the width requirements of road transportation. During the working process, the gauge of the crawler chassis can be increased by changing the track to improve the stability of the whole machine. The position of the center of gravity of the whole machine improves the stability against rollover. The track changing of the chassis of the present invention can carry out unilateral or bilateral track changing. According to the distribution of the center of gravity of the whole machine when hoisting goods in the process of self-disassembly and assembly, the change of track girder gauge is adjusted to meet the stability requirements of the whole machine.

3. As shown in Figure 4, the track beam bracket 6 can move left and right through the oil cylinder, change the center of gravity position of the whole machine, and improve climbing and adaptability; the transport box and the track beam bracket of the present invention can realize front and rear, left and right movement , by adjusting the front, rear, left and right positions of the transport box to change the position of the center of gravity of the whole machine to meet the requirements of the longitudinal and lateral slope of the mountain.

In the present invention, the front and rear brackets of the track can be changed into a lifting structure, thereby changing the height of the front and rear of the track beam bracket, adjusting the angle between the transport box and the track beam, and changing the angle according to the different climbing degrees to change the position of the center of gravity of the whole machine.

The present invention can also fix the transport box and the track beam bracket, move back and forth between the track beam bracket and the track beam, or move left and right to change the position of the center of gravity of the whole machine to meet the requirements of the longitudinal and transverse slopes of the mountain.

As shown in FIG. 5 , the first bracket support rod 10 , the crawler beam bracket 9 , and the second bracket support rod 12 form a parallelogram four-bar linkage mechanism, and the swing cylinder 11 provides swing power. The swing cylinder pushes the first bracket support rod 10 to swing by an angle α, and the track beam bracket moves a distance L, thereby changing the position of the center of gravity of the transport box left and right. According to the specific structural form, the drive mode of the swing cylinder can be changed to other power devices such as a rotary motor.

As shown in Figure 6, the forward and backward movement of the transport box can be realized by adding a push cylinder 13 between the transport box 7 and the track beam bracket 6, and the push cylinder 13 forms a certain angle with the horizontal, which can bear the vertical load of the transport box and reduce the forward and backward movement Frictional resistance between the transport box and the track beam bracket during the process. Moving back and forth can also adopt the rack and pinion structure according to the specific structure.

The crawler beam bracket of the present invention can be fixedly welded on the crawler beam, or can be assembled, which is convenient for disassembly and assembly, and can reduce the transport width of the main engine after dismantling to meet road transport regulations. There are many types of track beam brackets. The assembled bracket can rotate forward and backward relative to the track beam to adjust the height of the bracket, and rotate left and right to adjust the left and right inclinations, so as to adjust the front and rear center of gravity of the whole machine transport box in time according to the longitudinal slope and transverse slope of the mountain. .

4. The crawler transport vehicle of the present invention has no cab, and a controller and a wireless signal receiver are installed on the crawler transport vehicle. The wireless signal receiver communicates with the wireless remote control signal to receive the signal transmitted by the wireless remote control. The controller is connected, and the controller controls the power box 3 to make corresponding actions; relying on the wireless remote control to realize the whole vehicle walking, lifting, turning, luffing, pushing and other actions, the whole machine is walking, turning, lifting, luffing, and turning , track change, and braking are all operated by wireless remote control to realize unmanned driving, and realize long-distance wireless monitoring and operation through wireless remote sensing technology.

5. The present invention adopts modular integration technology, and has various functions. The boom form can be a single-section forehead arm, which meets the requirements for the lifting capacity and working range of the self-disassembly and assembly of the transportation pipe. At the same time, according to different construction objects, the form of the boom can be changed to a telescopic boom or a folding boom. Also can boom 9, slewing platform 2 be pulled down, be changed into traction saddle on power box, also can increase traction saddle at main engine rear, realize crawler tractor function.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also possible. It should be regarded as the protection scope of the present invention.

Claims (7)

1. A self-loading and unloading crawler carrier vehicle, characterized in that: comprises a track beam, a frame, a rotary platform, a suspension arm, a power box, a pitching oil cylinder, a track beam bracket and a transportation box,

the conveying boxes are split conveying boxes, the left conveying box and the right conveying box are independent conveying boxes, the track beam brackets are arranged on the track beams, and the two conveying boxes are respectively arranged on the left track beam bracket and the right track beam bracket;

one end of the frame is connected with the power box, the other end of the frame is overlapped with the track beams, the track beams are pushed outwards by changing the overlapping length of the frame and the track beams, the distance between the two track beams is changed, and the telescopic rail transfer of the track chassis is carried out;

the rotary platform is arranged on the power box, the suspension arm and the pitching oil cylinder are arranged on the rotary platform, the telescopic end of the pitching oil cylinder is hinged with the middle part of the suspension arm, pitching of the suspension arm is carried out, and the rotary platform drives the suspension arm to realize a rotary function;

the pushing oil cylinder and the swinging oil cylinder are arranged between the transportation box and the crawler beam bracket to move the transportation box back and forth and left and right, and the gravity center position of the whole machine is changed by adjusting the back and forth and left and right positions of the transportation box, so that the requirements on longitudinal and transverse gradients of mountain bodies are met.

2. The self-loading and unloading crawler as in claim 1 wherein: the crawler belt conveyor is provided with a controller and a wireless signal receiver, the wireless signal receiver is connected with the controller, the wireless signal receiver is in signal communication with the wireless remote controller, signals transmitted by the wireless remote controller are received, and the controller controls the power box to perform corresponding actions; the wireless remote controller is used for controlling various actions of the whole vehicle, unmanned operation is achieved, and long-distance wireless monitoring and operation are achieved through a wireless remote sensing technology.

3. The self-loading and unloading crawler as in claim 1 wherein: the crawler tractor further comprises a traction saddle, wherein the traction saddle is connected to the power box and used for performing the function of the crawler tractor.

4. The self-loading and unloading crawler as in claim 1 wherein: the track beam bracket is fixedly welded on the track beam.

5. The self-loading and unloading crawler as in claim 1 wherein: the track beam bracket is an assembled bracket, the height of the bracket can be adjusted relative to the track beam in a front-back rotating way, the left-right inclination can be adjusted in a left-right rotating way, and accordingly the front-back gravity center position of the whole transportation box can be timely adjusted according to mountain longitudinal slopes and transverse slopes.

6. The self-loading and unloading crawler as in claim 1 wherein: the track beam bracket is of a lifting structure, so that the front-back height of the track beam bracket is changed, the angle between the transport case and the track beam is adjusted, the angle change is carried out according to different climbing slopes, and the gravity center position of the whole machine is changed.

7. The self-loading and unloading crawler as in claim 1 wherein: the transport case is two transport platforms, and every transport case has the structure of bilayer placing goods.

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