Damping mechanism for electric land leveler

Abstract

The utility model relates to a damping mechanism for an electric land leveler, which is characterized in that one end of an opening of a U-shaped frame of a damping swing frame faces a swing frame mounting beam, a vertical sliding rod is arranged at the opening of the U-shaped frame and penetrates through the swing frame mounting beam, and elastic damping bags are respectively mounted above and below the swing frame mounting beam through the sliding rod; the upper end and the lower end of the sliding rod are fixedly connected with the inner side of the U-shaped frame, the outer side of the U-shaped frame is provided with a lifting oil cylinder connecting joint through a connecting joint mounting arm, the lifting oil cylinder connecting joint is hinged to a scraper lifting oil cylinder, and the scraper lifting oil cylinder is hinged to a rotary disc gear ring. The elastic damping bag, the concave frame matched with the elastic damping bag and the sliding rod are additionally arranged on the swing frame of the land leveler, so that the scraper can be kept stable under the action of self weight, vibration is filtered through the elastic damping bag when the front rack of the land leveler vibrates, the vibration can be effectively filtered, and the service life of the scraper is prolonged. And the leveling effect of the scraper can be effectively prevented from being influenced by vibration of the rack.

Description

Technical Field

[0001] The utility model relates to a shock absorbing device for a motor grader, in particular to a shock absorbing mechanism for an electric motor grader. Background Art

[0002] A motor grader, also known as a scraper or bulldozer, is a common type of construction machinery. When the motor grader is operating, road bumps are transmitted to the body through the wheels and shock absorbers, causing vibrations. These vibrations are then directly transmitted through the front frame to the rigidly connected scraper, causing the scraper to vibrate up and down, affecting the leveling effect.

[0003] Currently, a utility model patent with patent publication number CN203939920U discloses a shovel frame vibration damping device for a motor grader. The device comprises a hoof-shaped vibration damping bump with a through-hole extending through the bottom of the bump, a snap-fitting notch at the front, and a pair of connecting flanges on the sidewalls of the bump. This device utilizes a vibration damping bump made of hard rubber. Users can simply snap the snap-fitting notch onto the edge of the shovel frame and secure it using the connecting flanges, significantly reducing harmful vibrations and improving the stability of the motor grader's shovel frame. The device features a simple structure, ease of use, and high practicality.

[0004] From the above disclosed technical content, it can be seen that as a prior art, the utility model with announcement number CN203939920U directly fixes the hoof-shaped shock-absorbing protrusions on the edge of the shovel frame. However, due to the overall lack of necessary connection to the front frame, it cannot completely filter out the vibration transmitted from the front frame to the scraper. Summary of the Invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides a shock absorbing mechanism for an electric motor grader, which can effectively filter vibrations and effectively prevent the vibration of the frame from affecting the leveling effect of the scraper.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a shock absorbing mechanism for an electric motor grader, comprising a motor grader front frame, a traction frame connecting end, a swing frame mounting beam, a shock absorbing swing frame, a concave-shaped frame, a sliding rod, an elastic shock absorbing bag, a lifting cylinder connecting joint, and a connecting joint mounting arm. The traction frame connecting end is respectively mounted on both sides of the front of the motor grader front frame, the front end of the motor grader front frame is mounted with wheels through shock absorbers, and the rear end is connected to the rear axle. The swing frame mounting beam is fixedly mounted at the rear middle of the motor grader front frame, and the shock absorbing swing frame is movably mounted at the end of the swing frame mounting beam. The concave portion of the shock absorbing swing frame is provided with a plurality of springs. One end of the U-shaped frame opening faces the swing frame mounting beam, and a vertical sliding rod is provided at the opening of the concave frame. The sliding rod passes through the swing frame mounting beam, and elastic shock-absorbing bags are respectively installed on the upper and lower parts of the swing frame mounting beam through the sliding rod. The upper and lower ends of the sliding rod are fixedly connected to the inner side of the concave frame, and the lifting cylinder connecting section is installed on the outer side of the concave frame through the connecting section mounting arm. The lifting cylinder connecting section is articulated to the scraper lifting cylinder, and the scraper lifting cylinder is articulated to the turntable gear ring. The traction frame connecting end is movably connected to the turntable gear ring through a hydraulic rod; the end of the swing frame mounting beam is flat and fits the concave frame.

[0007] In addition, the shock absorbing mechanism for the electric motor grader according to the above embodiment of the present invention may also have the following additional technical features:

[0008] As a further improvement of the present invention, the elastic shock-absorbing bag is composed of a nylon net wrapping a soft rubber ball, and a rubber sleeve is provided on the outside of the nylon net.

[0009] As a further improvement of the present invention, a reinforcement plate is provided at the connection between the front frame of the grader and the swing frame mounting beam.

[0010] As a further improvement of the present invention, in the elastic shock-absorbing bags above and below the swing frame mounting beam, the height of the upper elastic shock-absorbing bag is greater than that of the lower elastic shock-absorbing bag.

[0011] As a further improvement of the present invention, the elastic shock-absorbing bag is composed of a nylon mesh wrapped around a soft rubber ball, the interior of which is hollow and filled with high-pressure air.

[0012] Through the above scheme, the utility model has at least the following advantages: compared with conventional graders, by adding an elastic shock-absorbing bag to the swing frame of the grader, and its matching concave frame and sliding rod, the scraper can remain stable under the action of its own weight, and when the front frame of the grader vibrates, the elastic shock-absorbing bag filters the vibration, which can effectively filter the vibration and effectively prevent the frame from affecting the leveling effect of the scraper due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the shock absorbing mechanism used in an electric motor grader;

[0014] Figure 2This is a partial perspective view of a shock-absorbing swing frame of a shock-absorbing mechanism for an electric motor grader;

[0015] Figure: 1. Front frame of the grader, 2. Connecting end of the traction frame, 3. Mounting beam for the swing frame, 4. Shock-absorbing swing frame, 4-1. Concave-shaped frame, 4-2. Sliding rod, 4-3. Elastic shock-absorbing bag, 4-4. Connecting joint of the lifting cylinder, 4-5. Mounting arm for the connecting joint. DETAILED DESCRIPTION

[0016] The shock absorbing mechanism for an electric motor grader of the present invention will be described below with reference to the accompanying drawings.

[0017] In Example 1 of the present application, Figure 1 and Figure 2 As shown, the shock absorbing mechanism for the electric grader (hereinafter referred to as "the present invention") comprises a grader front frame 1, a traction frame connecting end 2, a swing frame mounting beam 3 and a shock absorbing swing frame 4. The traction frame connecting end 2 is respectively installed on both sides of the front of the grader front frame 1. The front end of the grader front frame 1 is equipped with wheels through shock absorbers, and the rear is connected to the rear axle. The swing frame mounting beam 3 is fixedly installed at the rear middle of the grader front frame 1, and the shock absorbing swing frame 4 is movably installed at the end of the swing frame mounting beam 3; one end of the opening of the concave frame 4-1 of the shock absorbing swing frame 4 faces the swing frame mounting beam 3, and the concave frame 4-1 opening A vertical sliding rod 4-2 is provided, which passes through the swing frame mounting beam 3. The swing frame mounting beam 3 is respectively installed with elastic shock-absorbing bags 4-3 through the sliding rod 4-2 on the upper and lower ends. The upper and lower ends of the sliding rod 4-2 are fixedly connected to the inner side of the concave frame 4-1, and the outer side of the concave frame 4-1 is installed with a lifting cylinder connecting section 4-4 through a connecting section mounting arm 4-5. The lifting cylinder connecting section 4-4 is articulated to the scraper lifting cylinder, and the scraper lifting cylinder is articulated to the turntable gear ring. The traction frame connecting end 2 is movably connected to the turntable gear ring through a hydraulic rod; the end of the swing frame mounting beam 3 is flat and fits the concave frame 4-1.

[0018] The utility model announcement number CN203939920U is a shovel frame shock-absorbing device for a grader (hereinafter referred to as "the patent"). The patent directly fixes a hoof-shaped shock-absorbing bump to the edge of the shovel frame. However, due to the lack of the necessary connection to the front frame, it cannot completely filter out the vibration transmitted from the front frame to the scraper. The present invention uses an elastic shock-absorbing bag 4-3 and its matching concave frame 4-1 and sliding rod 4-2 to enable the scraper to remain stable under the action of its own weight. When the front frame 1 of the grader vibrates, the elastic shock-absorbing bag 4-3 filters the vibration, effectively preventing the road vibration from being transmitted to the scraper through the frame.

[0019] This second embodiment is essentially the same as the first embodiment, differing in that the elastic shock-absorbing bag 4-3 comprises a nylon mesh surrounding a soft rubber ball, with a rubber sleeve positioned outside the mesh. The elastic shock-absorbing bag 4-3, consisting of a nylon mesh surrounding a soft rubber ball, is hollow and filled with high-pressure air. The specially designed structure of the elastic shock-absorbing bag 4-3 effectively filters vibrations.

[0020] To further optimize the performance of this application and enhance the connection strength between the motor grader's front frame 1 and the swing frame mounting beam 3, a reinforcement plate is provided at the connection between the motor grader's front frame 1 and the swing frame mounting beam 3. To ensure support for the scraper and its associated components, the upper elastic shock-absorbing bumps 4-3 on the upper and lower sides of the swing frame mounting beam 3 are taller than the lower elastic shock-absorbing bumps 4-3.

[0021] When in use, the shock absorbing mechanism for the electric motor grader is installed and connected with corresponding pipeline equipment, and the motor grader can be put into practical use.

[0022] When the utility model is in use, the specific operations are as follows:

[0023] During use, the front frame 1 of the grader is affected by the bumpy road surface and vibrates, and the vibration is transmitted to the swing frame mounting beam 3. The swing frame mounting beam 3 rises and falls with the front frame 1 of the grader. Since the sliding rod 4-2 slides up and down in the vertical through hole of the swing frame mounting beam 3, the swing frame mounting beam 3 squeezes the elastic shock-absorbing bag 4-3 of the shock-absorbing swing frame 4 during lifting and lowering, causing it to deform and absorb the vibration, thereby filtering the vibration, so that the scraper and its accessories can remain stable under the action of their own weight, thereby ensuring the normal development of the leveling work.

[0024] In summary, the shock absorbing mechanism for the electric grader of the embodiment of the utility model enables the scraper to remain stable under the action of its own weight by adding an elastic shock absorbing bag 4-3 to the swing frame of the grader, and its matching concave-shaped frame 4-1 and sliding rod 4-2, and when the front frame 1 of the grader vibrates, the elastic shock absorbing bag 4-3 filters the vibration, which can effectively filter the vibration and effectively prevent the frame from affecting the leveling effect of the scraper due to vibration.

[0025] Those skilled in the art will understand that the discussion of any of the above embodiments is merely illustrative and is not intended to limit the scope of the present invention to these examples. Within the spirit and principles of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and many other variations exist for the various aspects of the present invention described above, which are not provided in detail for the sake of clarity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A shock absorbing mechanism for an electric motor grader, comprising a motor grader front frame (1) and a traction frame connecting end (2), wherein the traction frame connecting end (2) is respectively installed on both sides of the front portion of the motor grader front frame (1), a wheel is installed at the front end of the motor grader front frame (1) through a shock absorber, and the rear end is connected to a rear axle, wherein the shock absorbing mechanism comprises: The front frame (1) of the grader is fixedly installed with a swing frame mounting beam (3) at the rear middle part, and a shock-absorbing swing frame (4) is movably installed at the end of the swing frame mounting beam (3); one end of the concave frame (4-1) of the shock-absorbing swing frame (4) faces the swing frame mounting beam (3), and a vertical sliding rod (4-2) is provided at the opening of the concave frame (4-1), and the sliding rod (4-2) passes through the swing frame mounting beam (3), and the swing frame mounting beam (3) is respectively installed with elastic damping rods at the top and bottom through the sliding rod (4-2). The upper and lower ends of the vibration pack (4-3) and the sliding rod (4-2) are fixedly connected to the inner side of the concave frame (4-1); the outer side of the concave frame (4-1) is installed with a lifting cylinder connecting section (4-4) through a connecting section mounting arm (4-5); the lifting cylinder connecting section (4-4) is hinged to the scraper lifting cylinder, the scraper lifting cylinder is hinged to the turntable gear ring, and the traction frame connecting end (2) is movably connected to the turntable gear ring through a hydraulic rod; the end of the swing frame mounting beam (3) is flat and fits the concave frame (4-1).

2. The shock absorbing mechanism for an electric motor grader according to claim 1, characterized in that: The elastic shock-absorbing bag (4-3) is composed of a nylon net wrapping a soft rubber ball, and a rubber sleeve is arranged outside the nylon net.

3. The shock absorbing mechanism for an electric motor grader according to claim 2, wherein: A reinforcing plate is provided at the connection between the front frame (1) of the grader and the swing frame mounting beam (3).

4. The shock absorbing mechanism for an electric motor grader according to claim 1, wherein: In the elastic shock-absorbing bags (4-3) above and below the swing frame mounting beam (3), the upper elastic shock-absorbing bag (4-3) is taller than the lower elastic shock-absorbing bag (4-3).

5. The shock absorbing mechanism for an electric motor grader according to claim 2, wherein: The elastic shock-absorbing bag (4-3) is composed of a soft rubber ball wrapped in a nylon net, and the interior thereof is hollow and filled with high-pressure air.

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