CN207579990U - It may span across the engineering vehicle walking device of obstacle - Google Patents

Abstract

The utility model provides an engineering vehicle walking device capable of crossing obstacles, which includes a chassis, front legs, rear legs, front wheels and rear wheels, and the front legs or The rear legs rotate the front legs through the rotating telescopic mechanism, the propulsion mechanism drives the telescopic legs to stretch, adjust the angle of the rear legs through the rear telescopic mechanism, and drive the rear wheels through the motor to push the front wheels. It overcomes the problems of low efficiency and high cost that the original engineering vehicles cannot cross larger obstacles and need to be transported by hoisting or hauling. The utility model adopts the front connection seat connected with the chassis to make the front legs rotate, the front legs can be stretched and grasp the ground, the rear connection seat can adjust the angle of the rear legs, and the rear wheels are driven independently, which is suitable for auxiliary engineering vehicles to cross in harsh environments characteristics of obstacles.

Description

Construction vehicle walking device capable of crossing obstacles

technical field

The utility model belongs to the technical field of engineering vehicles and relates to a walking device for engineering vehicles capable of crossing obstacles.

Background technique

Engineering vehicles are used by people for excavation, transportation, rock breaking, etc., involving wheeled and tracked vehicles. Wheeled vehicles have the characteristics of fast driving speed and convenient driving. However, it needs a better road surface and cannot drive across some obstacle areas; tracked vehicles make up for some of the shortcomings of wheeled vehicles, and can pass through some muddy roads with good adhesion to the ground and will not slip. When mounding soil, because the crawler is connected to the entire car body, the contact area with the ground is large, and it is easy to cross, but it cannot pass through large vertical obstacles. It needs to be lifted by a crane or towed by a trailer, which is inefficient and expensive. Loaded multiple times, not safe.

Contents of the invention

The technical problem to be solved by the utility model is to provide a walking device for engineering vehicles that can cross obstacles. The front connecting seat connected to the chassis is used to rotate the front legs, the front legs can be stretched and grasp the ground, and the rear connecting seat can make the angle of the rear legs Adjustable, independent rear wheel drive, suitable for assisting engineering vehicles to cross obstacles in harsh environments, efficient and fast transfer, low cost, safe and reliable.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a walking device for engineering vehicles capable of crossing obstacles, which includes a chassis, front legs, rear legs, front wheels and rear wheels; The front connecting seats on both sides and the rear connecting seats on both sides of the back; the front legs include telescopic legs connected with the rotating legs; the front legs are connected with the front connecting seats by pin shafts, the rear legs are connected with the rear connecting seats, and the front wheels and the rear wheel are respectively connected with the front leg and the rear leg.

The front connecting seat includes a rotating telescopic mechanism connected with the seat body by a pin shaft.

The rotating leg includes a fixed propulsion mechanism located in the cavity and a lower fixed axle seat.

The telescopic leg includes a claw connected with one end thereof and capable of gripping the ground.

The telescoping end of the rotating telescopic mechanism is connected with the rotating leg, and the telescopic leg cooperates with the hollow cavity of the rotating leg, the propelling end of the propulsion mechanism is connected with the telescopic leg, and the hub on the front wheel cooperates with the axle on the axle seat.

The rear connection seat includes a rear telescopic mechanism connected with the seat body.

The rear legs include motors connected thereto.

The rear connecting seat is connected with the chassis by a pin shaft, the fixed end of the rear telescopic mechanism is connected with the chassis, and the wheel hub on the rear wheel cooperates with the wheel shaft on the motor.

The said rotary telescopic mechanism or propulsion mechanism or rear telescopic mechanism is a hydraulic oil cylinder or an air cylinder or a worm gear.

The chassis is provided with a rotatable jacking device that contacts the ground, and the jacking device can jack up the front wheel and the rear wheel after contacting the ground.

A walking device for an engineering vehicle capable of crossing obstacles includes a chassis, front legs, rear legs, front wheels and rear wheels; the chassis includes front connecting seats on both sides of the front and rear connecting seats on both sides of the back; The telescopic leg connected by the rotating leg; the front leg is connected with the front connecting seat by a pin shaft, the rear leg is connected with the rear connecting seat, and the front wheel and the rear wheel are respectively connected with the front leg and the rear leg. The front legs or rear legs are jacked up by the jacking device or the bucket of the engineering vehicle on the chassis, the front legs are rotated by the rotating telescopic mechanism, the propulsion mechanism drives the telescopic legs to expand and contract, the angle of the rear legs is adjusted by the rear telescopic mechanism, and the rear leg is driven by the motor The front wheel is driven by the front wheel, which is suitable for assisting engineering vehicles to cross obstacles in harsh environments.

In a preferred solution, the front connecting seat includes a rotating telescopic mechanism connected to the seat body by a pin shaft. The connection seat is a block structure, the upper pin shaft is coordinated with the fixed end of the rotary telescopic mechanism to rotate, the lower pin shaft is connected with the rotating leg, and the telescopic end of the rotary telescopic mechanism is connected with the rotary leg.

In a preferred solution, the rotating leg includes a fixed propulsion mechanism located in the cavity thereof and a lower fixed wheel axle seat. The rotating leg is a hollow polygonal profile with a chute on the inner wall. The propulsion mechanism is located in the hollow cavity. The telescopic legs cooperate with the hollow cavity. The fixed end of the propulsion mechanism is fixed to the rotating leg, and the propelling end is connected to the telescopic leg.

In a preferred solution, the telescopic legs include claws connected to one end thereof with gripping ability. The telescopic legs are hollow polygonal profiles with slide rails on the outside, and the claws are claw-like structures similar to multiple fingers, on which a connecting shaft is connected to the telescopic legs, and the claws are located outside the hollow cavity of the rotating legs.

In a preferred solution, the telescopic end of the rotating telescopic mechanism is connected to the rotating leg, and the telescopic leg cooperates with the hollow cavity of the rotating leg, the propelling end of the propulsion mechanism is connected to the telescopic leg, and the hub on the front wheel cooperates with the axle on the axle seat. The structure is simple and compact. The fixing of the rotating telescopic mechanism is connected with the front connecting seat through the pin shaft, and the other end is connected with the rotating leg through the pin shaft seat. When the rotating telescopic mechanism stretches, the rotating leg is pulled or pushed around the connecting seat (11). The lower pin shaft rotates up and down, the sliding rail on the telescopic leg cooperates with the chute in the cavity of the rotating leg, the propelling end of the propulsion mechanism is connected with the telescopic leg, and the telescopic leg is pushed out or retracted, and the axle seat is a triangular structure, on which There is a wheel shaft matched with the bearing seat, the wheel shaft is matched with the hub on the front wheel, it can support the ground by contacting with the ground, and rolls forward through the drive of the rear wheel, the action is flexible and reliable.

In a preferred solution, the rear connecting seat includes a rear telescopic mechanism connected with the seat body. The rear connection seat is similar to a special-shaped "Z"-shaped structure. The front end of the bottom is provided with a pin shaft to connect with the chassis, and the front end of the top is provided with a pin shaft to connect with the telescopic end of the rear telescopic mechanism. The fixed end of the rear telescopic mechanism is connected to the The chassis is connected, and the rear telescopic mechanism promotes the rear connecting seat to rotate around the pin shaft at the bottom of the front end during the telescopic process, and adjusts the angle of the rear leg connected with the rear connecting seat.

In a preferred aspect, the rear leg includes a motor connected thereto. One end of the rear legs of the rod-shaped structure is connected to the rear connecting seat, and the other end is connected to the barrel-shaped motor seat. The motor is located in the motor seat. The rear legs and the rear connecting seat can be connected by fasteners, which is convenient for disassembly and assembly.

In a preferred solution, the rear connecting seat is connected with the chassis by a pin shaft, the fixed end of the rear telescopic mechanism is connected with the chassis, and the hub on the rear wheel cooperates with the wheel shaft on the motor. The structure is simple and compact, and the rear telescopic mechanism is stretched to make the rear connecting seat rotate to adjust the angle of the rear legs, so that the rear wheels are in contact with the ground, and the motor drives the rear wheels to rotate to push the chassis forward.

In a preferred solution, the rotary telescopic mechanism or the propulsion mechanism or the rear telescopic mechanism is a hydraulic oil cylinder or an air cylinder or a worm gear. According to different types of engineering vehicles connected to the chassis, different mechanisms can be selected to drive different loads. The torque transmission of the hydraulic cylinder is fast and the torque is large. The pneumatic cylinder has a large buffer during work, sensitive action, large worm gear ratio, and self-locking performance. Well, the rotary telescopic mechanism adopts a cylinder, the propulsion mechanism adopts a hydraulic cylinder, and the rear telescopic mechanism adopts a worm gear, which has the advantages of fast rotation, large telescopic force, good self-locking performance, and the chassis runs more stably when the load is heavy, and is not easy to slip.

In a preferred solution, a rotatable jacking device in contact with the ground is provided on the chassis, and the jacking device can jack up the front wheel and the rear wheel after contacting the ground. The jacking device includes a lifting seat connected with the chassis, and a rotating arm connected with the lifting seat. The rotating arm can rotate and cooperate with the lifting seat to contact the ground. The front wheel and the rear wheel of the chassis can be lifted by the jacking device. Without the cooperation of engineering vehicles, it can cross obstacles by itself.

The utility model provides an engineering vehicle walking device capable of crossing obstacles, which includes a chassis, front legs, rear legs, front wheels and rear wheels, and the front legs or The rear legs rotate the front legs through the rotating telescopic mechanism, the propulsion mechanism drives the telescopic legs to stretch, adjust the angle of the rear legs through the rear telescopic mechanism, and drive the rear wheels through the motor to push the front wheels. It overcomes the problems of low efficiency and high cost that the original engineering vehicles cannot cross larger obstacles and need to be transported by hoisting or hauling. The utility model adopts the front connection seat connected with the chassis to rotate the front legs, the front legs can be stretched and grasp the ground, the rear connection seat can adjust the angle of the rear legs, and the rear wheels are driven independently, which is suitable for auxiliary engineering vehicles to cross in harsh environments characteristics of obstacles.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is a schematic front view of the utility model.

Fig. 2 is a schematic top view of the utility model.

FIG. 3 is a schematic cross-sectional view at A-A of FIG. 1 .

FIG. 4 is an enlarged schematic diagram of B in FIG. 2 .

Fig. 5 is a structural schematic diagram of the front leg of the utility model.

Among the figure: chassis 1, front connecting seat 11, rotating telescopic mechanism 111, rear connecting seat 12, rear telescopic mechanism 121, front leg 2, rotating leg 21, propulsion mechanism 211, axle seat 212, telescopic leg 22, claw 221, rear Leg 3, motor 31, front wheel 4, rear wheel 5.

Detailed ways

As shown in Fig. 1 to Fig. 5, a kind of engineering vehicle walking device that can cross obstacles, it includes chassis 1, front leg 2, rear leg 3, front wheel 4 and rear wheel 5; The front connecting seat 11 and the rear connecting seat 12 on both sides of the back; the front leg 2 includes a telescopic leg 22 connected with the rotating leg 21; the front leg 2 is connected with the front connecting seat 11 by a pin shaft, and the rear leg 3 is connected with the rear Connecting seat 12 is connected, and front wheel 4 and rear wheel 5 are connected with front leg 2 and rear leg 3 respectively. The front leg 2 or the rear leg 3 is jacked up by the jacking device or the bucket of the engineering vehicle on the chassis 1, the front leg 2 is rotated by the rotating telescopic mechanism 111, and the propulsion mechanism 211 drives the telescopic leg 22 to expand and contract, and after being adjusted by the rear telescopic mechanism 121 The angle of the leg 3 drives the rear wheel 5 to push the front wheel through the motor 31, which is suitable for assisting engineering vehicles to cross obstacles in harsh environments.

In a preferred solution, the front connecting seat 11 includes a rotating telescopic mechanism 111 connected to the seat body by a pin shaft. The connection seat is a block structure, the upper pin shaft is rotated with the fixed end of the rotating telescopic mechanism 111, the lower pin shaft is connected with the rotating leg 21, and the telescopic end of the rotating telescopic mechanism 111 is connected with the rotating leg 21.

In a preferred solution, the rotating leg 21 includes a propulsion mechanism 211 fixed in the cavity thereof and a wheel axle seat 212 fixed at the lower part. The rotating leg 21 is a hollow polygonal profile with a chute on the inner wall. The propulsion mechanism 211 is located in the hollow cavity. The telescopic leg 22 cooperates with the hollow cavity. 22 connections.

In a preferred solution, the telescopic leg 22 includes a claw 221 connected to one end thereof and capable of gripping the ground. The telescopic leg 22 is a hollow polygonal profile with a slide rail on the outside. The claw 221 is a claw-like structure similar to a plurality of fingers, and a connecting shaft is provided on it to connect with the telescopic leg 22. The claw 221 is located in the hollow cavity of the rotating leg 21. in vitro.

In a preferred solution, the telescopic end of the rotating telescopic mechanism 111 is connected to the rotating leg 21, the telescopic leg 22 cooperates with the hollow cavity of the rotating leg 21, the propelling end of the propulsion mechanism 211 is connected to the telescopic leg 22, and the hub on the front wheel 4 Cooperate with the axle on the axle seat 212. The structure is simple and compact, the fixed rotating telescopic mechanism 111 is connected with the front connecting seat 11 through the pin shaft, and the other end is connected with the rotating leg 21 through the pin shaft seat, when the rotating telescopic mechanism 111 stretches, the rotating leg 21 is pulled or pushed around the connecting seat (11) The lower pin shaft on the top rotates up and down, the sliding rail on the telescopic leg 22 cooperates with the chute in the cavity of the rotating leg 21, and the propelling end of the propulsion mechanism 211 is connected with the telescopic leg 22, pushing the telescopic leg 22 to extend or retract , the wheel shaft seat 212 is a triangular structure, on which is provided with a wheel shaft that matches the bearing seat, and the wheel shaft is matched with the hub on the front wheel 4, and can support the ground by contacting with the ground, and rolls forward through the drive of the rear wheel 5, with flexible movements reliable.

In a preferred solution, the rear connecting seat 12 includes a rear telescopic mechanism 121 connected with the seat body. The rear connection seat 12 is similar to a special-shaped "Z"-shaped structure. The front end of the bottom is provided with a pin shaft to connect with the chassis 1, and the front end of the top is provided with a pin shaft to connect with the telescopic end of the rear telescopic mechanism 121. The fixed end of the rear telescopic mechanism 121 Connected with the chassis 1 through the pin shaft, the rear telescopic mechanism 121 pushes the rear connecting seat 12 to rotate around the pin shaft at the bottom of the front end during the telescopic process, and adjusts the angle of the rear leg 3 connected with the rear connecting seat 12 .

In a preferred solution, the rear leg 3 includes a motor 31 connected thereto. One end of the rear leg 3 of the rod-shaped structure is connected to the rear connecting seat 12, and the other end is connected to the barrel-shaped motor seat. The motor 31 is located in the motor seat, and the rear leg 3 and the connecting seat (12) can be connected by fasteners Easy to connect and disassemble.

In a preferred solution, the rear connecting seat 12 is connected to the chassis 1 by a pin shaft, the fixed end of the rear telescopic mechanism 121 is connected to the chassis 1, and the hub on the rear wheel 5 cooperates with the wheel shaft on the motor 31 . The structure is simple and compact, and the rear telescopic mechanism 121 stretches to make the rear connecting seat 12 rotate to adjust the angle of the rear leg 3, so that the rear wheel 5 is in contact with the ground, and the motor 31 drives the rear wheel 5 to rotate and push the chassis 1 to move forward.

In a preferred solution, the rotary telescopic mechanism 111 or the propulsion mechanism 211 or the rear telescopic mechanism 121 is a hydraulic cylinder or an air cylinder or a worm gear. According to the different types of engineering vehicles connected to the chassis 1, different mechanisms can be selected to drive different loads. The torque transmission of the hydraulic cylinder is fast and the torque is large. The pneumatic cylinder has a large buffer during work, and the action is sensitive. The transmission ratio of the worm gear is large and self-locking. Good performance, the rotary telescopic mechanism 111 adopts a cylinder, the propulsion mechanism 211 adopts a hydraulic cylinder, and the rear telescopic mechanism 121 adopts a worm gear, which has the advantages of fast rotation, large telescopic force, and good self-locking performance. skidding.

In a preferred solution, the chassis 1 is provided with a rotatable jacking device in contact with the ground, and the jacking device can jack up the front wheel 4 and the rear wheel 5 after contacting the ground. The jacking device includes a lifting seat connected with the chassis 1, a rotating arm connected with the lifting seat, the rotating arm can rotate and cooperate with the lifting seat to contact the ground, and the front wheel 4 and the rear wheel of the chassis 1 can be lifted by the jacking device. Wheel 5, without cooperation with the engineering vehicle, can cross obstacles by itself.

The above-mentioned engineering vehicle running device that can cross obstacles, when working, the chassis 1 is connected with the engineering vehicle, such as a forklift is connected with the chassis 1, the bucket of the forklift lifts the front leg 2 connected with the chassis 1, and the rotating telescopic mechanism 111 and the propulsion mechanism 211 work to push the front leg 2 to rotate and raise, the telescopic leg 22 stretches forward, the claw 221 grasps the ground, the bucket of the forklift rotates to the back of the chassis 1 to lift the rear leg 3 to make it suspended, and the propulsion mechanism 211 works to make the chassis 1. The forklift and the rear legs 3 on the chassis 1 move forward, or the rear telescopic mechanism 121 telescopically drives the rear connecting seat 12 to rotate so that the rear legs 3 rotate at a certain angle to contact the ground, and the propulsion mechanism 211 and the motor 31 work simultaneously, When the propulsion mechanism 211 works, the chassis 1 is pulled forward, the motor 31 drives the rear wheel 5 to rotate, the rear wheel 5 drives the front wheel 4 to roll forward, and the chassis 1 also moves forward accordingly, and the chassis 1 can assist the engineering vehicle to cross obstacles.

Or, when the chassis 1 is not used in connection with the engineering vehicle, the jacking device on the chassis 1 can be rotated arbitrarily to jack up the front leg 2 or the rear leg 3, so that the front leg 2 or the rear leg 3 is suspended in the air. When working, the rotating arm of the jacking device jacks up the front leg 2 connected to the chassis 1, the rotating telescopic mechanism 111 and the propulsion mechanism 211 work to push the front leg 2 to rotate and lift, the telescopic leg 22 stretches forward, the claw 221 grasps the ground, and jacks up The rotating arm of the device rotates to the back of the chassis 1 to jack up the rear legs 3 to make it suspended, and the propulsion mechanism 211 works to make the chassis 1, the forklift positioned on the chassis 1 and the rear legs 3 move forward, or after the rear telescopic mechanism 121 telescopically drives The connecting seat 12 rotates to make the rear leg 3 rotate at a certain angle to contact the ground, the propulsion mechanism 211 and the motor 31 work at the same time, when the propulsion mechanism 211 works, the chassis 1 is pulled forward, the motor 31 drives the rear wheel 5 to rotate, and the rear wheel 5 drives the front wheel 4 Rolling forward, the chassis 1 also moves forward correspondingly, and can cross obstacles by itself.

Alternatively, when the chassis 1 is connected to the engineering vehicle, the jacking device is used to jack up the front leg 2 or the rear leg 3, so that the front leg 2 or the rear leg 3 is suspended in the air. When working, the bucket of the forklift and the rotating arm of the jacking device jack up the front leg 2 connected to the chassis 1, the rotating telescopic mechanism 111 and the propulsion mechanism 211 work to push the front leg 2 to rotate and lift, and the telescopic leg 22 is stretched forward. 221 grasps the ground, the bucket of the forklift and the rotating arm of the jacking device rotate to the back of the chassis 1 to jack up the rear legs 3 to make it suspended, and the propulsion mechanism 211 works to make the chassis 1, the forklift on the chassis 1 and the rear legs 3 directions Forward movement, or, the rear telescopic mechanism 121 telescopically drives the rear connecting seat 12 to rotate so that the rear leg 3 rotates at a certain angle to contact the ground, the propulsion mechanism 211 and the motor 31 work at the same time, and when the propulsion mechanism 211 works, the chassis 1 is pulled forward, and the motor 31 drives The rear wheel 5 rotates, the rear wheel 5 drives the front wheel 4 to roll forward, and the chassis 1 also moves forward correspondingly, which is more stable when crossing obstacles.

The above-mentioned embodiments are only preferred technical solutions of the present utility model, and should not be regarded as limitations on the present utility model. The embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other if there is no conflict. The scope of protection of the utility model shall be the technical solution described in the claims, including the equivalent replacements of the technical features in the technical solution described in the claims. That is, equivalent replacement and improvement within this scope are also within the protection scope of the present utility model.

Claims (10)

1. a kind of engineering vehicle walking device that may span across obstacle, it is characterized in that：It includes chassis（1）, foreleg（2）, back leg （3）, front-wheel（4）And trailing wheel（5）；The chassis（1）Preceding connecting seat including being located at front both sides（11）With two sides behind Connecting seat afterwards（12）；The foreleg（2）Including with rotation of leg（21）The Retractive leg of connection（22）；Foreleg（2）By axis pin with before Connecting seat（11）Connection, back leg（3）With rear connecting seat（12）Connection, front-wheel（4）And trailing wheel（5）Respectively with foreleg（2）And back leg （3）Connection.

2. the engineering vehicle walking device according to claim 1 that may span across obstacle, it is characterized in that：The preceding connecting seat （11）Including the rotatory and extending device being connect by axis pin with pedestal（111）.

3. the engineering vehicle walking device according to claim 1 that may span across obstacle, it is characterized in that：The rotation of leg （21）Including being located therein fixed propulsive mechanism in cavity body（211）With the fixed axle block in lower part（212）.

4. the engineering vehicle walking device according to claim 1 that may span across obstacle, it is characterized in that：The Retractive leg （22）There is the pawl of grabs ground ability including being connect with one end（221）.

5. the engineering vehicle walking device according to claim 2 that may span across obstacle, it is characterized in that：The rotary extension Mechanism（111）Telescopic end and rotation of leg（21）Connection, Retractive leg（22）With rotation of leg（21）Hollow cavity cooperation, propulsive mechanism （211）Promote end and Retractive leg（22）Connection, front-wheel（4）On wheel hub and axle block（212）On wheel shaft cooperation.

6. the engineering vehicle walking device according to claim 1 that may span across obstacle, it is characterized in that：The rear connecting seat （12）Including the rear telescoping mechanism being connect with pedestal（121）.

7. the engineering vehicle walking device according to claim 1 that may span across obstacle, it is characterized in that：The back leg（3） Including motor connected to it（31）.

8. the engineering vehicle walking device according to claim 6 that may span across obstacle, it is characterized in that：The rear connecting seat （12）By axis pin and chassis（1）Connection, rear telescoping mechanism（121）Fixing end and chassis（1）Connection, trailing wheel（5）On wheel hub with Motor（31）On wheel shaft cooperation.

9. the engineering vehicle walking device that may span across obstacle according to Claims 2 or 3 or 6, it is characterized in that：The rotation Turn telescoping mechanism（111）Or propulsive mechanism（211）Or rear telescoping mechanism（121）For hydraulic cylinder or cylinder or turbine and worm.

10. the engineering vehicle walking device according to claim 1 that may span across obstacle, it is characterized in that：The chassis（1）On Equipped with the rotatable jacking system contacted with ground, which can jack up front-wheel after being contacted with ground（4）And trailing wheel （5）.