Lifting mechanism for dumper

Abstract

The utility model provides a lifting mechanism for a dump truck. The turning plate is rotationally mounted at the top of the frame; a hydraulic cylinder is arranged at the bottom of one side of the turning plate; the observation device is fixedly installed on one side of the surface of the frame and comprises an arc-shaped plate, a moving groove and scale values. According to the lifting mechanism for the dumper, the sliding column is installed on the surface of the turning plate, when the turning plate is lifted along with the output shaft of the hydraulic cylinder, the turning plate drives the sliding column to slide in the moving groove, the sliding column drives the indicating plate to slide in the moving groove of the arc-shaped plate, and the indicating plate slides on the surface of the angle scale value; the device is simple in structure and high in practicability, an unloader can give an early warning to a driver in time according to the observation of the overturning angle of the bucket, the overturning angle of the bucket is prevented from being too large, the use safety of the dumper is kept, and the practicability of the lifting mechanism of the dumper is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dump trucks, in particular to a lifting mechanism for dump trucks. Background Art

[0002] In civil engineering, dump trucks often work together with excavators, loaders, belt conveyors and other construction machinery to form a loading, transporting and unloading production line to carry out loading and unloading and transportation of earth, sand, gravel and bulk materials. A dump truck is a special-purpose vehicle that has a lifting mechanism installed on the chassis. The lifting mechanism is used to tilt the car body to a certain angle for unloading, and the car body is reset by its own weight. Therefore, the main mechanism of the dump truck is the lifting mechanism.

[0003] However, the existing lifting mechanism only lifts the carriage, causing the carriage to tilt, and the goods inside the carriage to slide out for unloading. However, the driver of the dump truck only controls the lifting and lowering of the hydraulic cylinder during lifting and unloading, and the driver cannot accurately observe the tilt angle of the carriage. When the tilt angle of the dump truck carriage is too large, it is easy to cause a rollover accident.

[0004] Therefore, it is necessary to provide a lifting mechanism for a dump truck to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model provides a lifting mechanism for a dump truck, which solves the problem that when the dump truck is lifting and unloading, the driver only controls the lifting of the hydraulic cylinder and the driver cannot accurately observe the tilt angle of the car body, which easily causes a rollover accident when the tilt angle of the car body is too large.

[0006] In order to solve the above technical problems, the utility model provides a lifting mechanism for a dump truck, comprising: a frame;

[0007] A flap, the flap is rotatably mounted on the top of the frame, and a hydraulic cylinder is provided at the bottom of one side of the flap;

[0008] An observation device, the observation device is fixedly mounted on one side of the frame surface, the observation device comprises an arc plate, a movable groove and a scale value, the arc plate is fixedly mounted on one side of the frame surface, the movable groove is opened in the middle of the front side of the arc plate, and the scale value is fixedly mounted on one side of the arc plate surface;

[0009] An indicating device is fixedly mounted on one side of the flap surface.

[0010] Preferably, the indicating device comprises a sliding column and an indicating plate, the sliding column is fixedly connected to the surface of the flap, and the indicating plate is fixedly connected to the surface of the sliding column.

[0011] Preferably, a truck bed is fixedly mounted on the top of the flap.

[0012] Preferably, the sliding column and the moving groove are matched, and the scale value is an angle value.

[0013] Preferably, a threaded hole is provided on the surface of the arc-shaped plate, the internal thread of the threaded hole is engaged with a limiting device, and a limiting annular groove is provided on one side of the inner cavity wall of the threaded hole.

[0014] Preferably, the limiting device includes a threaded rod, an adjusting block and a limiting ring block, the threaded rod is threadedly engaged with the inside of the threaded hole, the limiting ring block is fixedly installed on one side of the outer surface of the threaded rod, and the adjusting block is fixedly installed on one end of the threaded rod.

[0015] Preferably, a limiting hole is provided on the surface of the sliding column.

[0016] Compared with the related art, the lifting mechanism for dump truck provided by the utility model has the following beneficial effects:

[0017] The utility model provides a lifting mechanism for a dump truck, by installing a sliding column on the surface of a flap, when the flap is lifted along with the output shaft of a hydraulic cylinder, the flap drives the sliding column to slide inside a moving groove, the sliding column drives an indicating plate to slide inside the moving groove of the arc plate, the indicating plate slides on the surface of an angle scale value, and indicates the rotation angle of the bucket. The device has a simple structure and is highly practical, and the unloading personnel can give a timely warning to the driver based on the observed flipping angle of the bucket, so as to avoid an excessively large flipping angle of the bucket, maintain the use safety of the dump truck, and improve the practicality of the lifting mechanism of the dump truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a first embodiment of a lifting mechanism for a dump truck provided by the utility model;

[0019] Figure 2 for Figure 1 The schematic diagram of the lifting state of the bucket shown;

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of point A is shown;

[0021] Figure 4 A schematic structural diagram of a second embodiment of a lifting mechanism for a dump truck provided by the utility model;

[0022] Figure 5 for Figure 4 An enlarged schematic diagram of point B is shown.

[0023] Numbers in the figure: 1, frame, 2, flap, 3, bucket, 4, hydraulic cylinder, 5, observation device, 51, arc plate, 52, moving groove, 53, scale value, 6, indicating device, 61, sliding column, 62, indicating plate, 7, limiting device, 71, threaded rod, 72, adjusting block, 73, limiting ring block, 8, threaded hole, 9, limiting ring groove, 10, limiting hole. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0025] First embodiment

[0026] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic structural diagram of a first embodiment of a lifting mechanism for a dump truck provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the lifting state of the bucket shown; Figure 3 for Figure 2 The enlarged schematic diagram of point A is shown. A lifting mechanism for a dump truck comprises: a frame 1;

[0027] A flap 2, the flap 2 is rotatably mounted on the top of the frame 1, and a hydraulic cylinder 4 is provided at the bottom of one side of the flap 2;

[0028] An observation device 5, the observation device 5 is fixedly mounted on one side of the surface of the frame 1, the observation device 5 comprises a curved plate 51, a movable groove 52 and a scale value 53, the curved plate 51 is fixedly mounted on one side of the surface of the frame 1, the movable groove 52 is opened in the middle of the front of the curved plate 51, and the scale value 53 is fixedly mounted on one side of the surface of the curved plate 51;

[0029] The indicating device 6 is fixedly mounted on one side of the surface of the flap 2 .

[0030] The indicating device 6 includes a sliding column 61 and an indicating plate 62 . The sliding column 62 is fixedly connected to the surface of the flap 2 , and the indicating plate 62 is fixedly connected to the surface of the sliding column 61 .

[0031] A bucket 3 is fixedly mounted on the top of the flap 2 .

[0032] The sliding column 61 is matched with the moving groove 52, and the scale value is an angle value.

[0033] The arc plate 51 and the movable groove 52 are both arc-shaped. The arc plate 51 is fixed to one side of the front of the frame 1. The arc is set as an angle value, which is forty degrees on the surface of the arc plate 51, so that the sliding column 61 can be turned forty degrees inside the movable groove 52.

[0034] The working principle of a lifting mechanism for a dump truck provided by the utility model is as follows:

[0035] During operation, first, when the flap 2 is lifted along with the output shaft of the hydraulic cylinder 4, the flap 2 drives the sliding column 61 to slide inside the moving groove 52, and the sliding column 61 drives the indicating plate 62 to slide inside the moving groove 52 of the arc plate 51, and the indicating plate 62 slides on the surface of the angle scale value 53 to indicate the rotation angle of the truck bucket 3.

[0036] Compared with the related art, the lifting mechanism for dump truck provided by the utility model has the following beneficial effects:

[0037] The utility model provides a lifting mechanism for a dump truck, wherein a sliding column 61 is installed on the surface of a flap 2. When the flap 2 is lifted along with the output shaft of a hydraulic cylinder 4, the flap 2 drives the sliding column 61 to slide inside a moving groove 52. The sliding column 61 drives an indicating plate 62 to slide inside the moving groove 52 of an arc plate 51. The indicating plate 62 slides on the surface of an angle scale value 53 to indicate the rotation angle of a truck bucket 3. The device has a simple structure and strong practicability. The unloading personnel can timely warn the driver according to the observed flipping angle of the truck bucket 3, thereby preventing the flipping angle of the truck bucket 3 from being too large, maintaining the use safety of the dump truck, and improving the practicability of the lifting mechanism for the dump truck.

[0038] Second embodiment

[0039] Please refer to Figure 4 and Figure 5 Based on the lifting mechanism for dump truck provided by the first embodiment of the present application, the second embodiment of the present application proposes another lifting mechanism for dump truck. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0040] Specifically, the second embodiment of the present application provides a lifting mechanism for a dump truck. The difference is that, in a lifting mechanism for a dump truck, a threaded hole 8 is provided on the surface of the arc plate 51, the internal thread of the threaded hole 8 is engaged with a limiting device 7, and a limiting annular groove 9 is provided on one side of the inner cavity wall of the threaded hole 8.

[0041] The limiting device 7 includes a threaded rod 71, an adjusting block 72 and a limiting ring block 73. The threaded rod 71 is threadedly engaged with the inside of the threaded hole 8, the limiting ring block 73 is fixedly installed on one side of the outer surface of the threaded rod 71, and the adjusting block 72 is fixedly installed on one end of the threaded rod 71.

[0042] A limiting hole 10 is formed on the surface of the sliding post 61 .

[0043] Four limiting devices 7 and four threaded holes 8 are provided. The four threaded holes 8 are equidistantly opened on the surface of the arc plate 51 , and the difference between each threaded hole 8 is ten degrees.

[0044] The threaded rod 71 rotates inside the threaded hole 8 , and the limiting ring block 73 slides inside the limiting ring groove 9 . The limiting ring block 73 cannot escape from the limiting ring groove 9 , so that the threaded rod 71 is not easy to escape from the threaded hole 8 .

[0045] The working principle of a lifting mechanism for a dump truck provided by the utility model is as follows:

[0046] During operation, first, four limit devices 7 are threadedly engaged on the side of the arc plate 51, corresponding to the four large sliding angles of the arc plate 51 surface. When the lifting mechanism is flipped to the four large angles, it can be restricted. The user rotates the adjustment block 72 to drive the threaded rod 71 to rotate, and the threaded rod 71 rotates the threaded engagement threaded hole 8 to insert into the limit hole 10 of the sliding column 61.

[0047] Compared with the related art, the lifting mechanism for dump truck provided by the utility model has the following beneficial effects:

[0048] The utility model provides a lifting mechanism for a dump truck. Four limit devices 7 are threadedly engaged on the side of an arc plate 51. Corresponding to the four large sliding angles of the arc plate 51 surface, the lifting mechanism can be restricted when it is flipped to the four large angles, thereby limiting the lifting of the hydraulic cylinder 4. The device has a simple structure and strong practicality. It can limit the lifting angle when the hydraulic cylinder 4 is lifted. An additional mechanism is used to support the flipping of the bucket 3, thereby preventing the hydraulic cylinder 4 from being damaged by the excessive weight of the bucket 3 and extending the service life of the lifting mechanism.

[0049] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lifting mechanism for a dump truck, characterized in that: include: Frame; A flap, the flap is rotatably mounted on the top of the frame, and a hydraulic cylinder is provided at the bottom of one side of the flap; An observation device, the observation device is fixedly mounted on one side of the frame surface, the observation device comprises an arc plate, a movable groove and a scale value, the arc plate is fixedly mounted on one side of the frame surface, the movable groove is opened in the middle of the front side of the arc plate, and the scale value is fixedly mounted on one side of the arc plate surface; An indicating device is fixedly mounted on one side of the flap surface.

2. A lifting mechanism for a dump truck according to claim 1, characterized in that: The indicating device comprises a sliding column and an indicating plate. The sliding column is fixedly connected to the surface of the flap, and the indicating plate is fixedly connected to the surface of the sliding column.

3. A lifting mechanism for a dump truck according to claim 1, characterized in that: A bucket is fixedly mounted on the top of the flap.

4. A lifting mechanism for a dump truck according to claim 2, characterized in that: The sliding column and the moving groove are matched, and the scale value is an angle value.

5. The lifting mechanism for a dump truck according to claim 1, characterized in that: A threaded hole is provided on the surface of the arc-shaped plate, the internal thread of the threaded hole is engaged with a limiting device, and a limiting annular groove is provided on one side of the inner cavity wall of the threaded hole.

6. A lifting mechanism for a dump truck according to claim 5, characterized in that: The limiting device includes a threaded rod, an adjusting block and a limiting ring block. The threaded rod is threadedly engaged with the inside of the threaded hole. The limiting ring block is fixedly installed on one side of the outer surface of the threaded rod. The adjusting block is fixedly installed on one end of the threaded rod.

7. A lifting mechanism for a dump truck according to claim 2, characterized in that: A limiting hole is provided on the surface of the sliding column.

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