Field vehicle weighing device

Abstract

A field vehicle weighing device comprises a bearing plate, at least four hydraulic oil cylinders are arranged below the bearing plate, the upper ends of the hydraulic oil cylinders are fixedly connected with the bearing plate, the lower portions of the hydraulic oil cylinders are provided with hydraulic oil cylinder bases, a bearing plate parallel to the bearing plate is arranged above the bearing plate, and the bearing plates are fixedly connected through a supporting device. The bearing plate is provided with a plurality of protruding parts, the protruding parts are arranged in guide rails of the guide rail support in a sliding fit mode and can vertically move along the guide rail support, the lower portion of the guide rail support is provided with a guide rail support base, the guide rail support is provided with a graduated scale, and the bearing plate or the bearing plate is provided with a graduated scale pointer used in cooperation with the graduated scale. A wheel load measuring instrument is arranged on the upper surface of the bearing plate, and a bearing plate leveling mechanism is further arranged on the field vehicle weighing device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicle weighing, in particular to a vehicle weighing device for field use. BACKGROUND

[0002] The whole vehicle weight has important influence on the acceleration performance, the maximum climbing ability and the fuel economy and multiple key performance indexes of the vehicle. Therefore, improving the measurement precision of the whole vehicle weight parameter has important role for analyzing and optimizing the whole vehicle dynamic performance, especially the measurement of the vehicle wheel load and the axle load can provide important reference for the whole vehicle performance research. These parameters are very important for the gravity center distribution, stability and driving safety of the vehicle.

[0003] In the research and development process of manned vehicles or small unmanned vehicles, it is usually necessary to test the vehicle performance in the field environment. In order to ensure the accuracy of experimental data, the overall weight of the vehicle must be mastered, especially the wheel load and axle load parameters. At present, the commonly used whole vehicle weighing method is the sling scale method, that is, the whole vehicle is lifted and weighed. However, although the sling scale method can obtain the whole vehicle weight, it cannot provide specific data of the vehicle wheel load and axle load. In addition, this method has high requirements for the test site, needs to have corresponding suspension equipment, and the measurement precision is relatively low.

[0004] Another commonly used method is to use the wheel load measuring instrument disclosed in CN213274516U. The device can measure the wheel load and axle load parameters of the vehicle, but it has high requirements for the flatness of the ground and cannot adapt to the complex terrain conditions in the field. When measuring on uneven support surface, the measurement result will be seriously affected. SUMMARY

[0005] In view of the shortcomings of the prior art, the utility model provides a vehicle weighing device for field use, which is provided with a plurality of hydraulic cylinders, the height of each hydraulic cylinder is changed, and the inclination angle sensor is matched to level the bearing plate. The wheel load measuring instrument is arranged on the upper surface of the bearing plate to provide a support plane for the wheel load measuring instrument, so as to ensure the accuracy of the measurement data of the wheel load measuring instrument. The guide rail support is provided with a scale, which can measure the ground clearance of the bearing plate and judge whether the vehicle to be measured can drive onto the bearing plate.

[0006] The specific technical scheme of the utility model is as follows:

[0007] The utility model provides a kind of field vehicle weighing device, including a load bearing plate, at least four hydraulic cylinders are arranged below the load bearing plate, the upper end of the hydraulic cylinder is fixedly connected with load bearing plate, and the lower part is equipped with hydraulic cylinder base, a load bearing plate is arranged above load bearing plate and parallel with load bearing plate, the load bearing plate and load bearing plate are fixedly connected by support device, the load bearing plate is equipped with multiple protruding parts, the protruding part is slidably fitted in the guide rail of guide rail support, can be vertically moved along guide rail support, guide rail support lower part is equipped with guide rail support base, guide rail support upper part is equipped with scale, scale pointer for cooperating scale is equipped on load bearing plate or load bearing plate, load bearing plate upper surface is equipped with wheel load measuring instrument, the field vehicle weighing device is also equipped with load bearing plate leveling mechanism.

[0008] Preferably, the load bearing plate leveling mechanism is an inclination sensor provided on the load bearing plate or the load bearing plate.

[0009] Preferably, the load bearing plate is rectangular, and the load bearing plate and the load bearing plate are of the same shape.

[0010] Preferably, the hydraulic cylinder is four, arranged at the four corners of the rectangular load bearing plate, and the guide rail support is four, arranged at the four corners of the rectangular load bearing plate.

[0011] Preferably, the rectangular load bearing plate is provided with a first connecting plate at each of the longitudinal ends, and the first connecting plate is provided with a first connecting plate protruding part at each of the transverse ends, which is slidably fitted in the guide rail of the guide rail support.

[0012] Preferably, the rectangular load bearing plate is provided with a second connecting plate at each of the longitudinal ends, and the second connecting plate is provided with a second connecting plate protruding part at each of the transverse ends, which is slidably fitted in the guide rail of the guide rail support.

[0013] Preferably, the load bearing plate is provided with a stop edge at each of the longitudinal sides of the upper surface, or the load bearing plate and the load bearing plate are each provided with a stop edge at each of the longitudinal sides of the upper surface.

[0014] Preferably, the load bearing plate is provided with a support part between the load bearing plate and the hydraulic cylinder, which is used to improve the strength of the load bearing plate and increase the vertical height of the load bearing plate.

[0015] Preferably, the guide rail support is provided with a limiting device.

[0016] The utility model has the beneficial effects that:

[0017] Adopt the above scheme, the hydraulic oil cylinder is arranged below the load bearing plate, the height of each hydraulic oil cylinder is adjusted, and the load bearing plate leveling mechanism is matched, so that the load bearing plate is ensured to be in a horizontal state, the wheel load measuring instrument arranged above the load bearing plate can accurately measure the vehicle weight, wheel load and axle load parameters; compared with the sling scale method commonly used when measuring the whole vehicle weight in the field environment, the weighing result is more accurate, and the wheel load and axle load parameters of the vehicle can be obtained; in the field, the requirement of the wheel load measuring instrument on the flatness is met;

[0018] The load bearing plate and the load bearing plate are horizontally arranged, the two plates are fixedly connected through the support device, and the connecting plate is arranged, so that the structural strength of the vehicle weighing device used in the field is ensured, and the service life of the vehicle weighing device used in the field is enhanced;

[0019] The guide rail support is provided with a scale, and the load bearing plate or the load bearing plate is provided with a scale pointer matched with the scale for the ground clearance of the load bearing plate, so that the height of the vehicle chassis to be measured is compared, and it is judged whether the vehicle can drive onto the load bearing plate;

[0020] The load bearing plate leveling mechanism is arranged on the vehicle weighing device used in the field, and the load bearing plate can be quickly adjusted to a horizontal state through the leveling mechanism, so that the efficiency of the vehicle weighing in the field is improved;

[0021] The guide rail support is provided with a limiting device, the vertical movement of the load bearing plate is limited, the height of the load bearing plate is prevented from being too low, the hydraulic oil cylinder is prevented from being pressed too much, and the load bearing plate is prevented from contacting the protruding part of the ground.

[0022] The upper surface of the load bearing plate is provided with a stop edge on the longitudinal two sides, or the upper surfaces of the load bearing plate and the load bearing plate are provided with stop edges on the longitudinal two sides, so as to prevent the vehicle to be measured from sliding off the load bearing plate.

[0023] The vehicle weighing device used in the field has wide application range and good adaptability, and can be used for testing the weight of various wheeled vehicles such as small unmanned vehicles and manned vehicles in the field.

[0024] In summary, the advantages of the utility model are as follows:

[0025] The height of each hydraulic oil cylinder is adjusted, and the load bearing plate leveling mechanism is matched, so that the load bearing plate is ensured to be in a horizontal state, the wheel load measuring instrument arranged above the load bearing plate can accurately measure the vehicle weight, wheel load and axle load parameters, and the data is accurate;

[0026] The load bearing plate, the load bearing plate, the first connecting plate and the second connecting plate are arranged, the structural strength of the vehicle weighing device used in the field is enhanced, and the vehicle weighing device used in the field can be used for testing the weight of various wheeled vehicles such as small unmanned vehicles and manned vehicles in the field, so that the application range is wide. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 is Figure 1 is an enlarged view of the structure at A in figure 1. DETAILED DESCRIPTION

[0029] Referring to Figures 1 to 2 The field vehicle weighing device comprises a bearing plate 1, at least four hydraulic oil cylinders 2 arranged below the bearing plate 1, the upper end of the hydraulic oil cylinder 2 being fixedly connected with the bearing plate 1, and a hydraulic oil cylinder base 3 arranged at the lower part of the hydraulic oil cylinder 2. A bearing plate 4 is arranged above the bearing plate 1 and parallel to the bearing plate 1. The bearing plate 4 is in the shape of a rectangle. The bearing plate 1 and the bearing plate 4 are of the same shape. In this embodiment, the hydraulic oil cylinder 2 is four in number and arranged at the four corners of the rectangular bearing plate 1. The axial direction of the hydraulic oil cylinder 2 is perpendicular to the rectangular bearing plate 1. The adjustment range of the hydraulic oil cylinder 2 is 0cm to 50cm, and the adjustment accuracy is 1cm. The bearing plate 1 and the bearing plate 4 are fixedly connected through a supporting device 18. The bearing plate 4 is provided with a plurality of protruding parts 5. The protruding parts 5 are slidingly fitted in the guide rails of the guide rail supports 6 and can move vertically along the guide rail supports 6. The circumferential direction of the guide rail supports 6 is arranged perpendicularly to the bearing plate 1. The guide rail supports 6 are four in number and arranged at the four corners of the rectangular bearing plate 4. The lower part of the guide rail supports 6 is provided with a guide rail support base 7. The upper part of the guide rail supports 6 is provided with a scale 9. The bearing plate 1 or the bearing plate 4 is provided with a scale pointer 10 for use with the scale 9. The upper surface of the bearing plate 4 is provided with a wheel load measuring instrument 8. The field vehicle weighing device is further provided with a bearing plate leveling mechanism. The bearing plate leveling mechanism is an inclination sensor arranged on the bearing plate 1 or the bearing plate 4.

[0030] The longitudinal two ends of the rectangular bearing plate 4 are provided with first connecting plates 11. The transverse two ends of the first connecting plates 11 are provided with first connecting plate protruding parts 12. The first connecting plate protruding parts 12 are slidingly fitted in the guide rails of the guide rail supports 6. The longitudinal two ends of the rectangular bearing plate 1 are provided with second connecting plates 13. The transverse two ends of the second connecting plates 13 are provided with second connecting plate protruding parts 14. The second connecting plate protruding parts 14 are slidingly fitted in the guide rails of the guide rail supports 6. The first connecting plates 11 and the second connecting plates 13 are provided with gratings.

[0031] The upper surface of the bearing plate 4 is provided with a stop edge 15 on the longitudinal two sides. Alternatively, the upper surfaces of the bearing plate 4 and the bearing plate 1 are both provided with stop edges 15 on the longitudinal two sides. The bearing plate 4 and the hydraulic oil cylinder 2 are provided with a support 16. The support 16 is used to improve the strength of the bearing plate 1 and to increase the vertical height of the bearing plate 1. The guide rail supports 6 are provided with a limiting device 17.

[0032] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Any modification made by those skilled in the art without departing from the spirit of the present application shall fall within the scope of the present application.

Claims

1. A field vehicle weighing device, characterized in that: The invention comprises a load-bearing plate (1), at least four hydraulic cylinders (2) are arranged below the load-bearing plate (1), the upper ends of the hydraulic cylinders (2) are fixedly connected to the load-bearing plate (1), and the lower parts are provided with hydraulic cylinder bases (3), a bearing plate (4) is arranged above the load-bearing plate (1) and parallel to the load-bearing plate (1), the load-bearing plate (1) and the bearing plate (4) are fixedly connected via a supporting device (18), the bearing plate (4) is provided with a plurality of protrusions (5), the protrusions (5) are slidably fitted in the guide rails of the guide rail bracket (6), and can be vertically moved along the guide rail bracket (6), the lower part of the guide rail bracket (6) is provided with a guide rail bracket base (7), the guide rail bracket (6) is provided with a scale (9), the load-bearing plate (1) or the bearing plate (4) is provided with a scale pointer (10) used in conjunction with the scale (9), the upper surface of the bearing plate (4) is provided with a wheel load measuring instrument (8), and the field vehicle weighing device is also provided with a bearing plate leveling mechanism.

2. The field vehicle weighing device according to claim 1, characterized in that: The load-bearing plate leveling mechanism is an inclination sensor provided on the load-bearing plate (1) or the load-bearing plate (4).

3. The field vehicle weighing device according to claim 1, characterized in that: The bearing plate (4) is rectangular, and the load-bearing plate (1) and the bearing plate (4) have the same shape.

4. The outdoor vehicle weighing device according to claim 3, characterized in that: There are four hydraulic cylinders (2) arranged at the four corners of the rectangular load-bearing plate (1), and there are four guide rail brackets (6) arranged at the four corners of the rectangular load-bearing plate (4).

5. The field vehicle weighing device according to claim 3, characterized in that: A first connecting plate (11) is provided at both longitudinal ends of the rectangular bearing plate (4), and a first connecting plate protrusion (12) is provided at both transverse ends of the first connecting plate (11), and the first connecting plate protrusion (12) is slidably fitted in the guide rail of the guide rail bracket (6).

6. The outdoor vehicle weighing device according to claim 3, characterized in that: A second connecting plate (13) is provided at both longitudinal ends of the rectangular load-bearing plate (1), and a second connecting plate protrusion (14) is provided at both transverse ends of the second connecting plate (13), and the second connecting plate protrusion (14) is slidably fitted in the guide rail of the guide rail bracket (6).

7. The outdoor vehicle weighing device according to claim 3, characterized in that: The upper surface of the load-bearing plate (4) is provided with ribs (15) on both longitudinal sides, or the upper surfaces of the load-bearing plate (4) and the load-bearing plate (1) are both provided with ribs (15) on both longitudinal sides.

8. The field vehicle weighing device according to claim 1, characterized in that: A support (16) is provided between the load-bearing plate (4) and the hydraulic cylinder (2), and the support (16) is used to increase the strength of the load-bearing plate (1) and to raise the vertical height of the load-bearing plate (1).

9. The outdoor vehicle weighing device according to claim 1, characterized in that: A limiting device (17) is provided on the guide rail bracket (6).

Images