CN215621912U - Landing leg device and engineering machinery - Google Patents
Landing leg device and engineering machinery Download PDFInfo
- Publication number
- CN215621912U CN215621912U CN202120904968.2U CN202120904968U CN215621912U CN 215621912 U CN215621912 U CN 215621912U CN 202120904968 U CN202120904968 U CN 202120904968U CN 215621912 U CN215621912 U CN 215621912U
- Authority
- CN
- China
- Prior art keywords
- wheel
- leg
- support
- crawler
- vehicle body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The utility model relates to the technical field of engineering machinery, and provides a supporting leg device and engineering machinery. The supporting leg device is arranged on a vehicle body of the engineering machinery and comprises a support, a crawler traveling mechanism and a mounting frame, one end of the support is arranged on the vehicle body, the mounting frame is arranged at the other end of the support, and the crawler traveling mechanism is arranged on the mounting frame. According to the support leg device provided by the utility model, the crawler belt walking mechanisms are arranged on the supports, so that the engineering machinery can be supported on the plurality of crawler belt walking mechanisms in the operation process when the support leg device on the existing engineering machinery is replaced by the support leg device provided by the utility model, when the whole engineering machinery needs to be moved, the support legs do not need to be retracted, the engineering machinery can be moved in the operation process in a short time by directly driving the crawler belt walking mechanisms to move, and the working efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to a supporting leg device and engineering machinery.
Background
At present, more engineering machines are provided with supporting leg devices so as to obtain stable support for the whole vehicle through supporting legs in the operation process, prevent the vehicle body from overturning and ensure the operation and installation.
After the supporting legs of the existing engineering machinery are stretched and positioned, the whole engineering machinery cannot move, operation can be performed only through the movement of the working device, and the work application range is limited. For example, when the forcible entry fire truck carries out sudden emergency rescue and forcible entry rescue, dangerous articles or obstacles need to be cleaned quickly, if the rescue operation area is larger than the maximum operation range of the forcible entry fire truck, the supporting legs need to be retracted, and after the forcible entry fire truck travels to the target operation area, the supporting legs are extended again for fixation, so that the working efficiency is seriously affected, and the smooth operation of rescue operation is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model provides a supporting leg device and engineering machinery, which are used for solving the problem that the working efficiency is influenced because the working range is limited after a supporting leg of the engineering machinery in the prior art is stretched and fixed.
The utility model provides a supporting leg device which is arranged on a vehicle body of engineering machinery and comprises a support, a crawler travelling mechanism and an installation frame, wherein one end of the support is arranged on the vehicle body, the installation frame is arranged at the other end of the support, and the crawler travelling mechanism is arranged on the installation frame.
According to the support leg device provided by the utility model, the crawler traveling mechanism comprises crawler wheels, wheel edge driving controllers and wheel edge driving devices, the wheel edge driving controllers are in communication connection with the wheel edge driving devices, and the wheel edge driving devices are in driving connection with the crawler wheels.
According to the supporting leg device provided by the utility model, the mounting frame comprises a web plate and an adapter plate, the crawler traveling mechanism comprises a driving wheel and a driven wheel, the driving wheel and the driven wheel are respectively installed on the web plate through a first rotating shaft, the web plate is installed on the adapter plate through a second rotating shaft, and the adapter plate is installed at the other end of the support.
According to the supporting leg device provided by the utility model, the mounting frame can be horizontally and rotatably arranged at the other end of the bracket.
According to the supporting leg device provided by the utility model, the mounting frame is connected with the other end of the support through the bearing.
According to the supporting leg device provided by the utility model, the support comprises a supporting leg arm and a telescopic supporting mechanism, one end of the supporting leg arm is arranged on the vehicle body, the fixed end of the telescopic supporting mechanism is fixedly arranged at the other end of the supporting leg arm, and the mounting frame is rotatably arranged at the telescopic end of the telescopic supporting mechanism.
According to the supporting leg device provided by the utility model, the telescopic supporting mechanism is a linear driving oil cylinder.
The utility model also provides engineering machinery which comprises a vehicle body and a plurality of any one of the supporting leg devices, wherein one end of the support is telescopically arranged on the vehicle body.
The engineering machine further comprises an upper controller, and the upper controller is in communication connection with the wheel side driving controller.
According to the engineering machinery provided by the utility model, two support leg devices are respectively installed on two sides of the vehicle body, and under the extending state of the four support leg devices, the four crawler travelling mechanisms are arranged in a rectangular or trapezoidal shape.
According to the support leg device and the engineering machinery provided by the utility model, the crawler belt walking mechanisms are arranged on the supports, when the support leg device on the existing engineering machinery is replaced by the support leg device provided by the utility model, the engineering machinery can be supported on the plurality of crawler belt walking mechanisms in the operation process, when the whole vehicle needs to be moved, the support legs do not need to be retracted, the movement of the engineering machinery in the operation process can be realized in a short time by directly driving the crawler belt walking mechanisms to move, and the working efficiency of the engineering machinery is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic illustration of a construction machine according to the present disclosure;
FIG. 2 is a schematic view of a portion of the leg assembly provided by the present invention;
reference numerals:
1. a support; 11. A leg arm; 12. A telescopic support mechanism;
2. a crawler travel mechanism; 21. A drive wheel; 22. A driven wheel;
23. a crawler belt; 24. A first rotating shaft; 25. second rotating shaft
3. A mounting frame; 31. A web; 32. An adapter plate;
33. a bearing; 100. A vehicle body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes the leg device and the construction machine provided by the utility model with reference to fig. 1 to 2.
As shown in fig. 1, which is a schematic structural diagram of a construction machine provided by the present invention, a leg device provided in an embodiment of the present invention is configured to be mounted on a vehicle body 100 of the construction machine, and the leg device includes a bracket 1, a crawler 2, and a mounting bracket 3. One end of the bracket 1 is mounted to the vehicle body 100, the mounting bracket 3 is mounted to the other end of the bracket 1, and the crawler traveling mechanism 2 is mounted to the mounting bracket 3. The crawler belt 2 includes crawler wheels including a driving wheel 21, a driven wheel 22, and a crawler belt 23 connecting the driving wheel 21 and the driven wheel 22. The driving wheel 21 and the driven wheel 22 are rotatably mounted to the mounting frame 3, respectively.
According to the support leg device provided by the utility model, the crawler belt walking mechanisms are arranged on the supports, so that the engineering machinery can be supported on the plurality of crawler belt walking mechanisms in the operation process when the support leg device on the existing engineering machinery is replaced by the support leg device provided by the utility model, when the whole engineering machinery needs to be moved, the support legs do not need to be retracted, the movement of the engineering machinery in the operation process can be realized in a short time by directly driving the crawler belt walking mechanisms to move, and the working efficiency of the engineering machinery is improved.
Further, the mounting frame 3 can be horizontally and rotatably mounted at the other end of the bracket 1. For example, the mounting frame 3 is rotatably coupled to the other end of the support 1 by a bearing 33. Wherein, the installation state of the mounting frame 3 in the supporting state when the supporting leg device is used is defined as the installation state that the mounting frame 3 can be horizontally and rotatably installed on the support 1. The leg devices are installed on both sides of the vehicle body 100, and steering of the vehicle body 100 can be achieved by performing differential control on the crawler traveling mechanisms 2 on the left and right sides of the vehicle body 100. The crawler traveling mechanisms 2 can be horizontally and rotatably arranged on the support 1 through the mounting frame 3, so that any crawler traveling mechanism 2 can be used as a rotating center to steer, and the steering radius is greatly reduced.
Fig. 2 is a schematic partial structural view of the leg device provided by the present invention. In an embodiment of the utility model, the mounting frame 3 comprises a web 31 and an adapter plate 32. The driving wheel 21 and the driven wheel 22 of the crawler belt unit 2 are respectively mounted on a web 31 via a first rotating shaft 24, the web 31 is mounted on an adapter plate 32 via a second rotating shaft 25, and the adapter plate 32 is mounted on the other end of the frame 1.
Specifically, the web 31 includes two webs 31, the two webs 31 are respectively located at two sides of the track wheel, and the driving wheel 21 and the driven wheel 22 are respectively rotatably mounted at two ends of the web 31 through the first rotating shaft 24. The adapter plate 32 is an inverted U-shaped structural plate, one side of which is connected to one web 31 and the other side of which is connected to the other web 31.
In the embodiment of the present invention, the adapter plate 32 is fixedly connected to the other end of the bracket 1, or the adapter plate 32 is rotatably connected to the other end of the bracket 1. For example, the adapter plate 32 is rotatably connected to the other end of the bracket 1 via a bearing 33, the adapter plate 32 is fixedly connected to an outer ring of the bearing 33, and the bracket 1 is fixedly connected to an inner ring of the bearing 33.
In the present invention, the stand 1 includes a leg arm 11 and a telescopic support mechanism 12. One end of the leg arm 11 is telescopically mounted to the vehicle body 100, and a fixed end of the telescopic support mechanism 12 is fixedly mounted to the other end of the leg arm 11. The mounting frame 3 is rotatably mounted on the telescopic end of the telescopic support mechanism 12. In the operation process, the support leg device bears the dead weight of the whole vehicle and the bending moment generated by the weight of the arm support system, so that overturning is prevented. When the vehicle body 100 needs to be moved during operation, the vehicle body 100 can be lifted to the position where the whole vehicle body is separated from the ground through the telescopic supporting mechanism 12, and then the crawler belt walking mechanism 2 is driven to move.
The embodiment can also stop the crawler belt walking mechanism 2 at any height through the telescopic supporting mechanism 12 so as to adapt to different terrain working conditions. The telescopic supporting mechanism 12 may be a linear driving oil cylinder or an air cylinder.
Specifically, the leg arm 11 extends and retracts the leg unit by extending and retracting to the outside of the vehicle body. The telescopic support mechanism 12 is attached to the telescopic end of the leg arm 11 with its driving direction being vertical. After the support leg arm 11 is extended to a set position, the telescopic end of the telescopic support mechanism 12 is extended toward the ground, so that the crawler belt 2 is supported on the ground.
The following embodiments all take a fire fighting truck equipped with the leg device provided by the utility model as an example to illustrate the use process of the fire fighting truck on a construction machine. During the fire fighting operation, the plurality of leg units are extended and deployed from the vehicle body 100, and the vehicle body 100 is supported on the crawler travel mechanisms 2 of the plurality of leg units. When the fire truck needs to be moved, the whole truck is driven to move by driving the plurality of crawler traveling mechanisms 2. After the work is completed, the leg unit is retracted into the vehicle body 100.
In the embodiment of the utility model, the crawler belt walking mechanism 2 further comprises a wheel edge driving controller and a wheel edge driving device. The wheel edge driving controller is in communication connection with the wheel edge driving device, and the wheel edge driving device is in driving connection with the crawler wheel. Wherein, wheel limit drive controller still with the upper controller communication connection of fire engine. The wheel driving device is a hydraulic motor or a pneumatic motor. The driving end of the wheel edge driving device is fixedly connected with the rotating shaft of the driving wheel 21, so as to drive the driving wheel 21 to rotate.
In the embodiment, the wheel-side driving controller and the wheel-side driving device are installed on the crawler traveling mechanism 2, and when a plurality of leg devices are installed on the body 100 of the fire fighting truck, the crawler traveling mechanism 2 of each leg device can be driven independently, so that the steering of the truck can be realized through differential control. Wherein, through the horizontal rotation of mounting bracket 3 with support 1 is connected, can reduce the turning radius of vehicle when carrying out differential steering greatly, realizes that automobile body 100 removes in the minizone, improves the flexibility of operation.
In the fire-fighting operation process, when the fire engine moves through the crawler traveling mechanisms 2, the upper controller sends control instructions corresponding to the crawler traveling mechanisms 2 to the corresponding wheel side driving controllers, and the wheel side driving controllers respectively control the wheel side driving devices to move so as to respectively and independently drive the crawler traveling mechanisms 2 to move.
Specifically, the support leg device provided by the embodiment of the utility model further comprises an angle encoder, wherein the angle encoder is mounted on the crawler traveling mechanism 2 and is in communication connection with the upper controller, and is used for detecting the relative angle between the crawler traveling mechanism 2 and the vehicle axis. When the fire fighting truck moves through the crawler belt travelling mechanism 2, the current relative angle between the crawler belt travelling mechanism 2 and the axis of the truck is transmitted back in real time through the angle encoder. When the steering is needed, the upper controller receives a steering signal of a steering wheel, generates speed control instructions corresponding to the crawler belt traveling mechanisms 2 according to the steering signal and the current relative angle, and sends the speed control instructions to corresponding wheel side driving controllers, and the wheel side driving controllers adjust the rotating speed of the driving wheels 21 through corresponding wheel side driving devices so as to realize the steering of the fire fighting truck through differential control.
Further, still be provided with proximity switch on crawler travel mechanism 2, at parking or the straight line in-process of traveling, carry on spacingly to crawler travel mechanism 2 for the relative angle of car axis through proximity switch, guarantee that crawler travel mechanism 2 is zero degree with the relative angle of car axis, realize the automatic centering of vehicle.
The utility model also provides engineering machinery which can be a fire truck, a concrete pump truck, a crane and the like. The engineering machinery provided by the embodiment of the utility model comprises a vehicle body 100 and a plurality of supporting leg devices according to any one of the above embodiments, wherein one end of a support 1 is telescopically arranged on the vehicle body 100, and specifically, one end of a supporting leg arm 11 is telescopically arranged on the vehicle body 100. The installation position of the leg device can be set according to the requirements of the corresponding engineering machine, such as the two sides, the front side or the rear side of the vehicle body 100.
The vehicle body 100 includes a chassis and a fixed traveling mechanism, and the fixed traveling mechanism is mounted on the chassis. After the operation is finished, the supporting leg device is retracted, and the fixed travelling mechanism is used for travelling. During operation, the supporting leg device is extended out, the crawler traveling mechanism 2 is supported on the ground, and the movement in the operation process is met.
The engineering machinery further comprises an upper controller, and the upper controller is in communication connection with the wheel side driving controller. In the operation process, the upper controller sends control instructions corresponding to the supporting leg devices to the corresponding wheel side driving controllers, the wheel side driving controllers of the supporting leg devices control the wheel side driving devices to move, so that the driving wheels 21 of the crawler belt traveling mechanisms 2 are driven to rotate respectively, and the steering of the engineering machinery can be realized through differential control.
In the embodiment of the utility model, the length of the support leg device extending out of the vehicle body is controllable. For example, the leg arm 11 includes a plurality of arm sections that are sequentially coupled, and the extension length of the leg arm 11 is controlled by controlling the extension length of the arm sections.
Further, the leg unit may be horizontally rotatably mounted to the vehicle body 100. Specifically, one end of the leg arm 11 is horizontally rotatably attached to the vehicle body 100, and the relative angle of the leg arm 11 with respect to the vehicle axis is adjusted by rotating the rotational angle of the leg arm 11.
According to the embodiment of the utility model, the crawler traveling mechanism can stay at any extending position by controlling the extending length of the supporting leg arm 11, the relative angle of the supporting leg arm 11 relative to the vehicle axis or the extending length of the telescopic supporting mechanism 12, so that the environmental adaptability of the engineering machinery is greatly improved. For example, two leg devices provided in this embodiment are respectively installed on two sides of the vehicle body 100, and the crawler belt units 2 of the four leg devices may be arranged in a rectangular shape. The crawler belt traveling mechanisms 2 of the four supporting leg devices can be arranged in a trapezoidal shape by adjusting the relative angles or the extending lengths of the front two supporting leg devices or the rear two supporting leg devices relative to the axis of the vehicle.
According to the engineering machinery provided by the utility model, the telescopic supporting leg device with the crawler traveling mechanisms is arranged, so that the vehicle body is supported on the plurality of crawler traveling mechanisms in the operation process, when the whole vehicle needs to be moved, the supporting legs do not need to be retracted, the small-range movement of the vehicle body in the operation process can be realized in a short time by directly driving the crawler traveling mechanisms, and the operation working efficiency is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a landing leg device, installs in engineering machine tool's automobile body, its characterized in that, including support, crawler travel mechanism and mounting bracket, the one end of support install in the automobile body, the mounting bracket install in the other end of support, crawler travel mechanism install in the mounting bracket.
2. The leg assembly of claim 1, wherein the crawler attachment includes a crawler wheel, a wheel-drive controller and a wheel-drive, the wheel-drive controller being in communication with the wheel-drive, the wheel-drive being in driving communication with the crawler wheel.
3. The leg arrangement as claimed in claim 1, wherein the mounting bracket includes a web and an adapter plate, the crawler travel mechanism includes a driving wheel and a driven wheel, the driving wheel and the driven wheel are respectively mounted to the web through a first rotating shaft, the web is mounted to the adapter plate through a second rotating shaft, and the adapter plate is mounted to the other end of the bracket.
4. The leg arrangement as claimed in claim 1, wherein the mounting bracket is horizontally rotatably mounted to the other end of the support frame.
5. The leg arrangement as claimed in claim 4, wherein the mounting bracket is connected to the other end of the support frame by a bearing.
6. The leg device as claimed in claim 1, wherein the support frame includes a leg arm and a telescopic support mechanism, one end of the leg arm is mounted on the vehicle body, a fixed end of the telescopic support mechanism is fixedly mounted on the other end of the leg arm, and the mounting frame is rotatably mounted on the telescopic end of the telescopic support mechanism.
7. The leg arrangement as claimed in claim 6, wherein the telescopic support mechanism is a linear drive cylinder.
8. An engineering machine comprising a vehicle body and a plurality of leg units as claimed in any one of claims 1 to 7, wherein one end of the support is telescopically mounted to the vehicle body.
9. The work machine of claim 8, further comprising an elevation controller communicatively coupled to the wheel drive controller.
10. The construction machine according to claim 8, wherein two of the leg units are mounted on both sides of the vehicle body, and the four crawler traveling mechanisms are arranged in a rectangular or trapezoidal shape in an extended state of the four leg units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120904968.2U CN215621912U (en) | 2021-04-28 | 2021-04-28 | Landing leg device and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120904968.2U CN215621912U (en) | 2021-04-28 | 2021-04-28 | Landing leg device and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215621912U true CN215621912U (en) | 2022-01-25 |
Family
ID=79937058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120904968.2U Active CN215621912U (en) | 2021-04-28 | 2021-04-28 | Landing leg device and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215621912U (en) |
-
2021
- 2021-04-28 CN CN202120904968.2U patent/CN215621912U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107217892B (en) | Novel stereo garage AGV vehicle carrier | |
| CN206476703U (en) | Underbody raising mobile platform | |
| CN110005451B (en) | Foldable arch frame type tunnel waterproof board installation vehicle | |
| CN101890983B (en) | Mortar trolley provided with automatic travelling hydraulic chassis | |
| CN111661764B (en) | High wheeled hoist of security | |
| CN204690756U (en) | A kind of vehicular Expansion belt conveyor | |
| CN215621912U (en) | Landing leg device and engineering machinery | |
| CN111022089A (en) | Waterproof board platform truck | |
| CN112249188A (en) | Miniature multipurpose spider formula caterpillar base plate | |
| CN113119674A (en) | Liftable chassis and high altitude construction car | |
| CN211692516U (en) | Waterproof board platform truck | |
| CN105151636A (en) | Vehicle-mounted extensible belt conveyor | |
| CN207875733U (en) | Trolley driving running gear | |
| CN107264265A (en) | A kind of crops monitor carrier device | |
| CN112938855B (en) | Chassis cross lifting type aerial working vehicle with adjustable platform angle | |
| CN213892712U (en) | Miniature multipurpose spider formula caterpillar base plate | |
| CN108939559B (en) | Vehicle-mounted ground net collision ground | |
| CN210971053U (en) | Track working vehicle | |
| CN218088692U (en) | Multifunctional narrow-gauge crane for railway | |
| CN214141308U (en) | Single-beam door type tire crane | |
| KR102548619B1 (en) | Apparatus for rear rail unit of the road-rail vehicles | |
| CN219361193U (en) | All-terrain carrying trolley capable of leveling in real time | |
| CN219217302U (en) | Crane cart travelling mechanism | |
| CN112320609B (en) | Hoist and mount conveyer in class absorption formula tunnel | |
| JP2012001104A (en) | Water supply drainage vehicle for aircraft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |