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 invention relates to the field of vehicle weighing, in particular to a field vehicle weighing device. Background Art

[0002] The vehicle weight has a significant impact on several key performance indicators such as the vehicle's acceleration performance, maximum gradeability, and fuel economy. Therefore, improving the measurement accuracy of the vehicle weight parameters is important for analyzing and optimizing the vehicle's dynamic performance, especially the measurement of the vehicle's wheel load and axle load, which can provide an important reference for vehicle performance research. These parameters are crucial to the vehicle's center of gravity distribution, stability, and driving safety.

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

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

[0005] In view of the deficiencies in the prior art, the present invention provides a field vehicle weighing device, which is provided with a plurality of hydraulic cylinders. The load-bearing plate is leveled by changing the height of each hydraulic cylinder and cooperating with an inclination sensor. A wheel load measuring instrument is arranged on the upper surface of the load-bearing plate to provide a supporting plane for the wheel load measuring instrument and ensure the accuracy of the measurement data of the wheel load measuring instrument. A scale is provided on the guide rail bracket to measure the height of the load-bearing plate from the ground and determine whether the vehicle to be tested can drive onto the load-bearing plate.

[0006] The specific technical solution of the present invention is achieved as follows: A field vehicle weighing device comprises 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 to the load-bearing plate, and the lower part is provided with a hydraulic cylinder base, a load-bearing plate is arranged above the load-bearing plate and parallel to the load-bearing plate, the load-bearing plate and the load-bearing plate are fixedly connected by a supporting device, the load-bearing plate is provided with a plurality of protrusions, the protrusions are slidably fitted in the guide rails of the guide rail bracket and can move vertically along the guide rail bracket, a guide rail bracket base is arranged at the lower part of the guide rail bracket, a scale is arranged on the guide rail bracket, a scale pointer used in conjunction with the scale is arranged on the load-bearing plate or the load-bearing plate, a wheel load measuring instrument is arranged on the upper surface of the load-bearing plate, and a load-bearing plate leveling mechanism is also provided on the field vehicle weighing device.

[0007] Preferably, the load-bearing plate leveling mechanism is an inclination sensor arranged on the load-bearing plate or the load-bearing plate.

[0008] Preferably, the bearing plate is rectangular, and the load-bearing plate has the same shape as the bearing plate.

[0009] Preferably, there are four hydraulic cylinders disposed at the four corners of the rectangular load-bearing plate, and there are four guide rail brackets disposed at the four corners of the rectangular load-bearing plate.

[0010] Preferably, first connecting plates are provided at both longitudinal ends of the rectangular bearing plate, first connecting plate protrusions are provided at both transverse ends of the first connecting plate, and the first connecting plate protrusions are slidably fitted in the guide rails of the guide rail bracket.

[0011] Preferably, the rectangular load-bearing plate is provided with a second connecting plate at both longitudinal ends, and the second connecting plate is provided with a second connecting plate protrusion at both transverse ends, and the second connecting plate protrusion is slidably fitted in the guide rail of the guide rail bracket.

[0012] Preferably, ribs are provided on both longitudinal sides of the upper surface of the bearing plate, or ribs are provided on both longitudinal sides of the upper surfaces of the bearing plate and the load-bearing plate.

[0013] Preferably, a support portion is provided between the load-bearing plate and the hydraulic cylinder, and the support portion is used to increase the strength of the load-bearing plate and to raise the vertical height of the load-bearing plate.

[0014] Preferably, a limiting device is provided on the guide rail bracket.

[0015] Beneficial effects of the present invention: By adopting the above scheme, hydraulic cylinders are arranged under the load-bearing plate, the height of each hydraulic cylinder is adjusted, and the load-bearing plate leveling mechanism is used to ensure that the load-bearing plate is in a horizontal state. A wheel load measuring instrument is arranged above the load-bearing plate to accurately measure the vehicle weight, wheel load, and axle load parameters. Compared with the hanging scale method often used to measure the weight of the whole vehicle in the field environment, the weighing result is more accurate, and the wheel load and axle load parameters of the vehicle can be obtained; the requirements for flatness when using a wheel load measuring instrument are met in the field; The load-bearing plate and the load-bearing plate are arranged horizontally, and the two plates are fixedly connected by a supporting device, and a connecting plate is arranged, which ensures the structural strength of the field vehicle weighing device and enhances the service life of the field vehicle weighing device; The guide rail bracket is provided with a scale, and the load-bearing plate or the carrying plate is provided with a scale pointer used in conjunction with the scale to measure the height of the carrying plate from the ground, which is compared with the chassis height of the vehicle to be tested to determine whether the vehicle can drive onto the carrying plate; A load-bearing plate leveling mechanism is provided on the field vehicle weighing device, and the load-bearing plate can be quickly adjusted to a horizontal state through the leveling mechanism, thereby increasing the efficiency of field vehicle weighing; A limit device is provided on the guide rail bracket to limit the vertical movement of the load-bearing plate to prevent the load-bearing plate from being too low, which would cause excessive pressure on the hydraulic cylinder and prevent the load-bearing plate from contacting the raised part of the ground.

[0016] The upper surface of the carrying plate is provided with ribs on both sides in the longitudinal direction, or the upper surfaces of the carrying plate and the load-bearing plate are both provided with ribs on both sides in the longitudinal direction, so as to prevent the vehicle to be tested from sliding off the carrying plate.

[0017] The field vehicle weighing device has a wide range of applications and good adaptability. It can be used to test the weight of various wheeled vehicles such as small unmanned vehicles and manned cars in the field.

[0018] In summary, the advantages of the present invention are as follows: Adjust the height of each hydraulic cylinder and cooperate with the load-bearing plate leveling mechanism to ensure that the load-bearing plate is in a horizontal state. The wheel load measuring instrument installed above the load-bearing plate can accurately measure the vehicle weight, wheel load, and axle load parameters with precise data; By arranging a load-bearing plate, a load-bearing plate, a first connecting plate, and a second connecting plate, the structural strength of the field vehicle weighing device is enhanced. The device can be used for field testing of the weight of various wheeled vehicles such as small unmanned vehicles and manned cars, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A magnified view of the structure in the middle. DETAILED DESCRIPTION

[0020] See also Figure 1 to Figure 2 A field vehicle weighing device comprises a load-bearing plate 1, at least four hydraulic cylinders 2 are arranged below the load-bearing plate 1, the upper end of the hydraulic cylinder 2 is fixedly connected to the load-bearing plate 1, and a hydraulic cylinder base 3 is arranged at the lower part, a load-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 load-bearing plate 4 are rectangular, and the load-bearing plate 1 and the load-bearing plate 4 have the same shape. In this embodiment, there are four hydraulic cylinders 2, which are arranged at the four corners of the rectangular load-bearing plate 1, and the axial direction of the hydraulic cylinder 2 is perpendicular to the rectangular load-bearing plate 1. The adjustment range of the hydraulic cylinder 2 is 0cm to 50cm, and the adjustment accuracy is 1cm. The load-bearing plate 1 and the load-bearing plate 4 are fixedly connected by a supporting device 18. The carrier plate 4 is provided with a plurality of protrusions 5, which are slidably fitted in the guide rails of the guide rail bracket 6 and can move vertically along the guide rail bracket 6. The circumference of the guide rail bracket 6 is perpendicularly arranged to the load-bearing plate 1. There are 4 guide rail brackets 6, which are arranged at the four corners of the rectangular carrier plate 4. A guide rail bracket base 7 is provided at the lower part of the guide rail bracket 6. A scale 9 is provided on the guide rail bracket 6. A scale pointer 10 used in conjunction with the scale 9 is provided on the load-bearing plate 1 or the carrier plate 4. A wheel load measuring instrument 8 is provided on the upper surface of the carrier plate 4. The field vehicle weighing device is also provided with a carrier plate leveling mechanism, and the carrier plate leveling mechanism is an inclination sensor arranged on the load-bearing plate 1 or the carrier plate 4.

[0021] The rectangular load-bearing plate 4 is provided with a first connecting plate 11 at both longitudinal ends, and the first connecting plate 11 is provided with a first connecting plate protrusion 12 at both transverse ends, and the first connecting plate protrusion 12 slides in the guide rail of the guide rail bracket 6; the rectangular load-bearing plate 1 is provided with a second connecting plate 13 at both longitudinal ends, and the second connecting plate 13 is provided with a second connecting plate protrusion 14 at both transverse ends, and the second connecting plate protrusion 14 slides in the guide rail of the guide rail bracket 6; the first connecting plate 11 and the second connecting plate 13 are provided with a grille.

[0022] The load-bearing plate 4 is provided with ribs 15 on both longitudinal sides of the upper surface, or the load-bearing plate 4 and the load-bearing plate 1 are both provided with ribs 15 on both longitudinal sides of the upper surface, 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 increase the vertical height of the load-bearing plate 1, and a limiting device 17 is provided on the guide rail bracket 6.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

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 move vertically along the guide rail bracket (6), the lower part of the guide rail bracket (6) is provided with a guide rail bracket base (7), a scale (9) is provided on the guide rail bracket (6), a scale pointer (10) used in conjunction with the scale (9) is provided on the load-bearing plate (1) or the bearing plate (4), a wheel load measuring instrument (8) is provided on the upper surface of the bearing plate (4), and a bearing plate leveling mechanism is also provided on the field vehicle weighing device.

2. The field vehicle weighing device according to claim 1, characterized in that: The load-bearing plate leveling mechanism is an inclination sensor arranged 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 field 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: The rectangular bearing plate (4) is provided with first connecting plates (11) at both longitudinal ends, and first connecting plate protrusions (12) are provided at both transverse ends of the first connecting plate (11), and the first connecting plate protrusions (12) are slidably fitted in the guide rail of the guide rail bracket (6).

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

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

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 field vehicle weighing device according to claim 1, characterized in that: The guide rail bracket (6) is provided with a limiting device (17).

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