Laser land leveler frame
By adopting the design and connecting rod structure of four wheels in contact with the ground on the laser floor frame, bumps are reduced, and the raised cylinder and short rod structure are used to facilitate the calibration of the shovel plate, the cumbersome problems of bumps and calibration operations of traditional laser floor machines are solved, and a more efficient ground flat and simple structure is achieved.
Patent Information
- Application Number
- CN202421926672.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-08-09
AI Technical Summary
Traditional laser graders are prone to bumps when passing through the undulating ground, affecting the flatness of the ground. The calibration operation of the shovel plates is cumbersome and the external structure is complex.
A laser flat motorcycle frame is designed, using four wheels to contact the ground, reducing bumps through the connecting rod structure, and a triangular structure composed of a high-pressure cylinder and a short rod is used to facilitate calibration of the shovel plate. At the same time, the traction rack has built-in oil storage cavity, which cancels the external oil tank and simplifies the structure.
It effectively reduces bumps in the car body, makes it easier to level the shovel board, simplifies the calibration process of the shovel board, simplifies the external structure, and improves the overall operation convenience and structural simplicity.
Smart Images
Figure CN222885108U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an agricultural machine, specifically to a frame of a laser land leveler. Background Art
[0002] A laser land leveler consists of components such as a towing frame, a body, and a blade plate. The towing frame is used to connect walking equipment such as a tractor. A cutter is arranged at the bottom of the blade plate, and side plates are arranged on both sides. During operation, the towing frame drags the blade plate forward through the body. The cutter levels the ground, and the side plates gather the shoveled soil in the middle and push it forward together with the body. As a high-precision ground leveling device, the laser land leveler determines the levelness of the ground by emitting and receiving laser, and then adjusts the height and tilt angle of the blade plate through a control system to ensure that the levelness and slope of the ground meet the predetermined requirements, and the error can usually be controlled within a few millimeters.
[0003] Traditional laser land levelers have the following disadvantages: (1) There are two wheels, one on the left and one on the right, at the bottom of the body. When it passes through a position with large undulations, the body will experience severe bumps, greatly increasing the difficulty for the control system to level the blade plate in time and affecting the final levelness of the ground at this place; (2) After long-term use of the blade plate, wear will occur at the bottom. When the wear is severe, it is necessary to calibrate and level the initial position of the blade plate. The traditional calibration method is to adjust through mutually cooperating adjusting long holes and bolts, and the operation is relatively troublesome; (3) The traditional fuel tank is arranged on the towing frame, occupying part of the top space, and the external structure is relatively complex.
[0004] In order to solve the above existing problems, people have been seeking an ideal technical solution. Summary of the Invention
[0005] The purpose of the utility model is to aim at the deficiencies of the prior art, and thus provide a frame of a laser land leveler with scientific design, which can reduce bumps, is more convenient for calibrating the blade plate, and has a more concise structure.
[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a frame of a laser land leveler, including a towing frame and a body. The body includes a blade plate mounting frame and a chassis located behind the blade plate mounting frame. The chassis includes a wheel axle, a first connecting rod, and a second connecting rod. One end of the wheel axle is hinged to the middle of the first connecting rod, and the other end of the wheel axle is hinged to the middle of the second connecting rod. Wheels are respectively installed at both ends of the first connecting rod and both ends of the second connecting rod.
[0007] Beneficial Effects: By respectively arranging the wheels at both ends of the first connecting rod and both ends of the second connecting rod, four contact points are formed with the ground, which can reduce the bumps of the body when it passes through a position with large undulations, making it easier for the control system to level the blade plate in time.
[0008] Based on the above, the first connecting rod includes a height adjustment cylinder and two short rods hinged together, and the two ends of the height adjustment cylinder are respectively hinged on the two short rods; by extending and retracting the height adjustment cylinder, the angle between the two short rods is changed, thereby adjusting the height of one end of the wheel axle from the ground.
[0009] Beneficial effect: The height adjustment cylinder and the two short rods form a triangular structure with a changeable side length. After the angle between the two short rods changes, the two tires can drive one end of the wheel axle to rise and fall, which can be used to calibrate the initial position of the shovel.
[0010] Based on the above, hinged ear plates are provided on the two short rods respectively corresponding to the height adjustment cylinders.
[0011] Based on the above, the wheel at the front end of the first connecting rod is installed on the outside, and the wheel at the rear end is installed on the inside, and the wheel at the front end of the second connecting rod is also installed on the outside, and the wheel at the rear end is also installed on the inside.
[0012] Beneficial effect: The front and rear wheels are arranged on the inner and outer sides respectively. When one wheel passes through a large pothole, the other three wheels can still remain stable, which is conducive to further reducing the bumps of the car body.
[0013] Based on the above, the traction frame includes a traction shaft extending in the front-rear direction, and a cavity for storing oil is provided in the traction shaft.
[0014] Beneficial effect: The cavity can eliminate the external fuel tank and simplify the external structure. Brief Description of the Figures
[0015] Figure 1 This is a three-dimensional diagram of the frame of the laser land leveler in the utility model.
[0016] Figure 2 This is a top view of the frame of the laser land leveler in the utility model.
[0017] Figure 3 This is a schematic diagram of the structure of the first connecting rod in the utility model.
[0018] In the figure: 1. Traction frame; 2. Blade mounting frame; 3. Chassis; 4. Wheel axle; 5. First connecting rod; 6. Second connecting rod; 7. Wheel; 51. Heightening cylinder; 52. Short rod; 53. Articulated ear plate. Specific implementation method
[0019] The following is a further detailed description of the technical solution of the utility model through specific implementation methods.
[0020] If Figures 1 - 3As shown, a laser leveler frame, a traction frame 1 and a body, the body includes a shovel mounting frame 2 and a chassis 3 located behind the shovel mounting frame 2, the chassis includes a wheel axle 4, a first connecting rod 5 and a second connecting rod 6, one end of the wheel axle 4 is hinged to the middle of the first connecting rod 5, and the other end of the wheel axle 4 is hinged to the middle of the second connecting rod 6, and wheels 7 are installed at both ends of the first connecting rod 5 and the second connecting rod 6, respectively, wherein the wheel 7 at the front end of the first connecting rod 5 is installed on the outside and the wheel 7 at the rear end is installed on the inside, and the wheel 7 at the front end of the second connecting rod 6 is also installed on the outside and the wheel 7 at the rear end is also installed on the inside.
[0021] When in use, the traction frame 1 is used to connect the tractor, the front side of the shovel mounting frame 2 is used to install the shovel, and the four wheels 7 form four contact points with the ground, and the four wheels 7 are staggered. When one of the wheels 7 passes through a large pit or a long ditch, the other three wheels 7 can still keep the body stable, which is conducive to reducing the bumps of the body and making it easier for the control system to level the shovel in time.
[0022] In order to facilitate the calibration and leveling of the shovel board, the first connecting rod 5 includes a height adjustment cylinder 51 and two short rods 52 hinged together. The two ends of the height adjustment cylinder 51 are respectively hinged on the two short rods 52, and the two short rods 52 are respectively provided with hinged ear plates 53 corresponding to the height adjustment cylinder 51. The height adjustment cylinder 51 and the two short rods 52 form a triangular structure with a changeable side length. When the bottom of the shovel board is worn and needs to be leveled, the height adjustment cylinder 51 is extended and retracted to change the angle between the two short rods 52, and the two wheels 7 are gathered inward or opened outward, thereby adjusting the height of one end of the wheel shaft 4 from the ground and calibrating the initial position of the shovel board.
[0023] In order to simplify the external structure, the traction frame 1 includes a traction shaft 11 extending in the front-rear direction, and a cavity for storing oil is provided in the traction shaft 11, eliminating the external oil tank.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for protection of the utility model.
Claims
1. A laser leveler frame, traction frame and body, characterized in that: The vehicle body includes a shovel board mounting frame and a chassis located behind the shovel board mounting frame, the chassis includes a wheel axle, a first connecting rod and a second connecting rod, one end of the wheel axle is hinged to the middle part of the first connecting rod, and the other end of the wheel axle is hinged to the middle part of the second connecting rod, and wheels are respectively installed at both ends of the first connecting rod and both ends of the second connecting rod.
2. The laser leveling machine frame according to claim 1, characterized in that: The first connecting rod includes a height-adjusting cylinder and two short rods hinged together, and the two ends of the height-adjusting cylinder are respectively hinged on the two short rods; by extending and retracting the height-adjusting cylinder, the angle between the two short rods is changed, thereby adjusting the height from the ground of one end of the wheel axle.
3. The laser leveling machine frame according to claim 2, characterized in that: The two short rods are respectively provided with hinged ear plates corresponding to the height-adjusting oil cylinders.
4. The laser leveling machine frame according to any one of claims 1 to 3, characterized in that: The wheel at the front end of the first connecting rod is installed on the outer side, and the wheel at the rear end is installed on the inner side. The wheel at the front end of the second connecting rod is also installed on the outer side, and the wheel at the rear end is also installed on the inner side.
5. The laser leveling machine frame according to claim 4, characterized in that: The traction frame comprises a traction shaft extending in the front-rear direction, and a cavity for storing oil is arranged in the traction shaft.