Lifting device for maintenance of electric land leveler

Abstract

The utility model relates to a lifting device for maintenance of an electric land leveler, which comprises a land leveler main frame and a rear bridge frame, one end of a traction hook is connected with a traction host, the other end of the traction hook is connected with the land leveler main frame, and a land leveling shovel plate is mounted on the lower portion of the land leveler main frame through a hydraulic rod and a connecting support. The rear portion of the land leveler main frame is provided with a rear bridge frame through a dragging frame and a supporting frame, the lower portion of the rear bridge frame is provided with a plurality of wheels, and the land leveler is characterized in that two or three lifting devices are installed on the rear bridge frame, and lifting large arms are fixed to the rear bridge frame through rear bridge frame clamping parts of the lifting devices. A telescopic rod is installed at the rear end of the large lifting arm through a rotating shaft of a lifting rod installation base, a supporting foot is movably installed at the lower end of the telescopic rod, a through hole is formed in the side edge of the large lifting arm to install a control connector, and stable lifting of the land leveler is achieved through the lifting device which can be installed on a rear bridge frame according to needs. And the safety during maintenance can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a maintenance auxiliary device, in particular to a landing device for repairing an electric motor grader. Background Art

[0002] After long-term use, graders may experience component damage and require maintenance. The current solution is to use a jack to lift the part that needs maintenance. However, since other components of the grader are high off the ground, the single-column jack is likely to tilt forward or backward, resulting in support failure and causing danger. Therefore, it can only support the wheel frame located at the bottom of the rear bridge frame. However, the wheel frame itself is hinged to the bottom of the rear bridge frame through a rotating shaft, and the support point is very unstable. If you are not careful, the wheel frame may change position, which in turn causes the jack support to fail, bringing danger to the maintenance work. Summary of the Invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention provides a lifting and lowering device for repairing an electric motor grader, which can stably lift the motor grader and effectively improve the safety during maintenance.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a landing device for repairing an electric grader, comprising a grader main frame, a towing hook, a grader shovel, a rear bridge frame and a landing device, wherein one end of the towing hook is connected to the traction main machine and the other end is connected to the grader main frame, the grader shovel is installed on the lower part of the grader main frame through a hydraulic rod and a connecting bracket, the rear of the grader main frame is installed with a rear bridge frame through a towing frame and a supporting frame, a plurality of wheels are installed on the lower part of the rear bridge frame, two or three landing devices are installed on the rear bridge frame, the rear bridge frame clamping part of the landing device fixes the lifting arm to the rear bridge frame, the rear end of the lifting arm is installed with a telescopic rod through the rotating shaft of the lifting rod mounting seat, the lower end of the telescopic rod is movably installed with a support foot, and a through hole is opened on the side of the lifting arm to install a control interface.

[0005] In addition, the landing device for repairing an electric grader according to the above embodiment of the present invention may also have the following additional technical features:

[0006] As a further improvement of the present invention, a screw hole is provided on one side of the rear axle frame clamping portion to be screwed to a screw controlled by a tightening control disk, and a rubber pad is installed on the other side.

[0007] As a further improvement of the present invention, the telescopic rod is electrically driven, and the control interface has a built-in power interface and a control switch, and the control switch controls the extension and retraction of the electrically driven telescopic rod through wires.

[0008] As a further improvement of the present invention, the lower surface of the support foot is provided with anti-slip corrugations.

[0009] As a further improvement of the present invention, two lifting rings are installed on the upper part of the lifting boom.

[0010] Through the above scheme, the utility model has at least the following advantages: compared with the conventional jack lifting and lowering, the lifting and lowering device can be installed on the rear bridge frame as needed to achieve stable lifting and lowering of the grader, the grader can be lifted stably, and the safety during maintenance can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the installation status of the landing gear used for maintenance of an electric grader;

[0012] Figure 2 This is a perspective view of the landing gear used for maintenance of a motor grader;

[0013] Figure 3 This is a side view of the landing gear used for maintenance on a motor grader;

[0014] Figure: 1. Main frame of the motor grader, 2. Towing hook, 3. Grader blade, 4. Rear axle frame, 5. Lifting and lowering gear, 5-1. Telescopic rod, 5-2. Lifting rod mounting bracket, 5-3. Lifting ring, 5-4. Lifting and lowering boom, 5-5. Clamping part of the rear axle frame, 5-6. Fastening control panel, 5-7. Support leg, 5-8. Control interface. DETAILED DESCRIPTION

[0015] The following describes the landing device for repairing an electric motor grader according to the present invention with reference to the accompanying drawings.

[0016] In Example 1 of the present application, Figures 1 to 3 As shown, the landing device for maintenance of the electric grader (hereinafter referred to as "the present invention") includes a grader main frame 1, a traction hook 2, a grader blade 3, a rear bridge frame 4, a landing device 5, a telescopic rod 5-1, a lifting rod mounting seat 5-2, a lifting ring 5-3, a lifting arm 5-4, a rear bridge frame clamping part 5-5, a fastening control panel 5-6, a support leg 5-7, and a control interface 5-8. One end of the traction hook 2 is connected to the traction host and the other end is connected to the grader main frame 1. The lower part of the grader main frame 1 is mounted on the grader through a hydraulic rod and a connecting bracket. The rear part of the main frame 1 of the motor grader is provided with a rear bridge frame 4 through a dragging frame and a supporting frame, and a plurality of wheels are installed at the lower part of the rear bridge frame 4. Two or three landing devices 5 are installed on the rear bridge frame 4. The rear bridge frame clamping part 5-5 of the landing device 5 fixes the lifting arm 5-4 to the rear bridge frame 4. The rear end of the lifting arm 5-4 is provided with a telescopic rod 5-1 through the rotating shaft of the lifting rod mounting seat 5-2. The lower end of the telescopic rod 5-1 is movably provided with a support leg 5-7. A through hole is opened on the side of the lifting arm 5-4 to install a control interface 5-8.

[0017] The structure of the second embodiment is basically the same as that of the first embodiment, except that Figure 2 As shown, the rear axle frame clamping portion 5-5 has a screw hole on one side for screwing a screw controlled by a tightening control panel 5-6, and a rubber pad is installed on the other side. The rubber pad and the pushing screw ensure that the rear axle frame clamping portion 5-5 is stably clamped to the rear axle frame 4, and provide sufficient stability and torque when the telescopic rod 5-1 is used to lift the grader via the lifting boom 5-4.

[0018] To further optimize the performance of this application and make the equipment easier to control, the telescopic rod 5-1 is electrically driven, and the control interface 5-8 includes a built-in power supply and a control switch. The control switch controls the extension and retraction of the electrically driven telescopic rod 5-1 via wires. If the telescopic rod 5-1 is hydraulically driven, the control interface 5-8 can also include a built-in hydraulic cylinder, a handle, a one-way valve, and an oil return valve. The hydraulically driven telescopic rod 5-1 is controlled by the jack control mechanism. To enhance stability, the lower surface of the support leg 5-7 is provided with anti-slip corrugations. To facilitate lifting, two lifting rings 5-3 are installed on the upper portion of the lifting arm 5-4.

[0019] When in use, install the landing gear for maintenance of the electric grader and connect the corresponding line equipment before putting it into use.

[0020] When the utility model is in use, the specific operations are as follows:

[0021] When the telescopic rod 5-1 is electrically controlled, the lifting arm 5-4 of the landing gear 5 is lifted by the lifting ring 5-3 of the crane, and then the rear bridge frame clamping part 5-5 is aligned with the rear bridge frame 4, and then the rear bridge frame clamping part 5-5 is placed on the rear bridge frame 4, and the screw is controlled by the tightening control panel 5-6 to tighten the rear bridge frame 4. When maintenance is required, the power supply is connected to the power interface in the control interface 5-8, and the telescopic rod 5-1 is extended through the built-in switch, and the support leg 5-7 is grounded, and finally the grader is raised. At this time, the staff can repair the grader. After the maintenance is completed, the telescopic rod 5-1 is reset, the cable is removed, and the grader can continue to work. Finally, it can be decided whether to remove the landing gear 5 as needed.

[0022] In summary, the landing device for repairing an electric grader in the embodiment of the present invention can realize stable lifting and lowering of the grader through the landing device 5 that can be installed on the rear bridge frame 4 as needed, can stably lift the grader, and can effectively improve safety during maintenance.

[0023] 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 lifting and lowering device for maintenance of an electric motor grader, comprising a motor grader main frame (1), a traction hook (2), a leveling blade (3) and a rear bridge frame (4), wherein one end of the traction hook (2) is connected to the traction main machine and the other end is connected to the motor grader main frame (1), the leveling blade (3) is mounted on the lower part of the motor grader main frame (1) through a hydraulic rod and a connecting bracket, the rear bridge frame (4) is mounted on the rear part of the motor grader main frame (1) through a towing frame and a supporting frame, and a plurality of wheels are mounted on the lower part of the rear bridge frame (4), characterized in that: Two or three landing gears (5) are installed on the rear axle frame (4), and the rear axle frame clamping part (5-5) of the landing gear (5) fixes the landing arm (5-4) on the rear axle frame (4). The rear end of the landing arm (5-4) is installed with a telescopic rod (5-1) through the rotating shaft of the lifting rod mounting seat (5-2), and the lower end of the telescopic rod (5-1) is movably installed with a support foot (5-7). The side of the landing arm (5-4) is provided with a through hole for installing a control interface (5-8); a screw hole is provided on one side of the rear axle frame clamping part (5-5) to be screwed with a screw controlled by a tightening control panel (5-6), and a rubber pad is installed on the other side.

2. The landing device for maintenance of an electric grader according to claim 1, characterized in that: The telescopic rod (5-1) is electrically driven, and the control interface (5-8) has a built-in power interface and a control switch. The control switch controls the extension and retraction of the electrically driven telescopic rod (5-1) through electric wires.

3. The landing device for maintenance of an electric grader according to claim 1, characterized in that: The lower surface of the support legs (5-7) is provided with anti-slip corrugations.

4. The landing device for maintenance of an electric grader according to claim 3, characterized in that: Two lifting rings (5-3) are installed on the upper part of the lifting arm (5-4).

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