阅读说明：本技术 超偏载检测计量量传装置以及检测计量量传方法 (Overload and unbalance load detection metering quantity transmission device and detection metering quantity transmission method ) 是由 姜会增 李世林 李杨 张建 刘晗 朱思平 孔德顺 赵德永 宫兴琦 王前 胡睿翾 于 2020-12-23 设计创作，主要内容包括：本发明公开了一种超偏载检测计量量传装置以及检测计量量传方法,所述超偏载检测计量量传装置包括集装箱本体和质心调整机构,通过质心调整机构带动其上的第一重量体相对于集装箱本体运动,从而改变集装箱本体的质心位置,以模拟实际作业中不同重量、超偏载情况的集装箱吊装,为集装箱的称重、超偏载计量提供溯源性,提高了检定精度,进而为集装箱的安全运输提供技术保障。(The invention discloses an overload and unbalance loading detection metering quantity transmission device and a detection metering quantity transmission method.)

1. An overload and unbalance loading detection measurement transmission device is characterized by comprising:

a container body (1);

the container comprises a container body (1), a center of mass adjusting mechanism (2) arranged on the container body (1), a first weight body (3) arranged on the center of mass adjusting mechanism (2), and the center of mass adjusting mechanism (2) is configured to drive the first weight body (3) to move relative to the container body (1) so as to change the center of mass position of the container body (1).

2. The overload and unbalance loading detection measurement amount transmission device according to claim 1, wherein the container body (1) comprises:

the mass center adjusting mechanism (2) is movably arranged on the bottom frame (11);

the upright post (12) is vertically arranged above the bottom frame (11); and

the top frame (13) is arranged above the upright post (12), and the top frame (13) is used for being matched with a lifting appliance during lifting.

3. The overload and unbalance detection measurement transmission device according to claim 2, wherein the base frame (11) comprises:

at least two first longitudinal beams (112), wherein the first longitudinal beams (112) extend along the longitudinal direction (Y) and the first longitudinal beams (112) are spaced at intervals; and

at least two first cross beams (111) arranged between the first longitudinal beams (112), wherein the first cross beams (111) extend along the transverse direction (X) and a space is formed between the first cross beams (111), and a first inner side space (10) is formed between the first cross beams (111) and the first longitudinal beams (112);

wherein the transverse direction (X) is perpendicular to the longitudinal direction (Y);

the center of mass adjusting mechanism (2) is movably arranged in the first inner space (10) and is configured to drive the first weight body (3) to move along the transverse direction (X) and/or the longitudinal direction (Y).

4. The excessive-unbalance-load detection measurement transmission device according to claim 3, wherein a first sliding rail (1211) is disposed on a side of the first longitudinal beam (112) facing the first inner space (10), the first sliding rail (1211) extends along the longitudinal direction (Y), and the center-of-mass adjustment mechanism (2) is slidably disposed on the first sliding rail (1211) to drive the first weight body (3) to move along the longitudinal direction (Y).

5. The overload and unbalance detection measurement transmission device according to claim 4, wherein the center of mass adjusting mechanism (2) comprises:

two second longitudinal beams (22) arranged at intervals along the transverse direction (X), wherein the second longitudinal beams (22) are arranged on the first sliding rail (1211) in a sliding manner; and

two second cross beams (21) arranged between the second longitudinal beams (22) at intervals along the longitudinal direction (Y), a second inner side space (20) is formed between the second cross beams (21) and the second longitudinal beams (22), a second slide rail (211) is arranged on one side of each second cross beam (21) facing the second inner side space (20), and the second slide rail (211) extends along the transverse direction (X);

the center of mass adjusting mechanism (2) is configured to drive the first weight body (3) to move along the transverse direction (X) through the second slide rail (211).

6. The overload and unbalance load detection measurement transmission device according to claim 5, further comprising:

the tray (31) is arranged on the second sliding rail (211) in a sliding mode and used for bearing the first weight body (3).

7. The overload and unbalance load detection measurement transmission device according to claim 6, further comprising:

the first telescopic push rod (41), one end of the first telescopic push rod (41) abuts against the first cross beam (111), the other end of the first telescopic push rod abuts against the second cross beam (21), and the first telescopic push rod is configured to be controlled to stretch and retract so as to drive the mass center adjusting mechanism (2) to slide along the first sliding rail (1211); and

one end of the second telescopic push rod (42) is abutted to the second longitudinal beam (22), the other end of the second telescopic push rod (42) is abutted to the tray (31), and the second telescopic push rod is configured to be controlled to stretch and retract so as to drive the tray (31) to slide along the second sliding rail (211).

8. The overload and unbalance load detection measurement transmission device according to claim 6, further comprising:

a lateral displacement sensor (51) provided on the second longitudinal beam (22) and configured to detect a displacement of the first weight (3) in the lateral direction (X); and

a longitudinal displacement sensor (52) disposed on the first cross member (111) and configured to detect a displacement of the centroid adjusting mechanism (2) in the longitudinal direction (Y).

9. The overload and unbalance load detection measurement transmission device according to any one of claims 1 to 8, wherein two overload and unbalance load detection measurement transmission devices are provided, and the two overload and unbalance load detection measurement transmission devices are connected in parallel through a connecting plate (7).

10. A detected measurement transmission method based on the excessive unbalance load detected measurement transmission device according to any one of claims 1 to 9, comprising:

adjusting the weight and the position of the mass center of the overload and unbalance loading detection metering transmission device;

respectively measuring unbalance loading values when the overload and unbalance loading detection metering transmission device is hoisted for at least two different total weights and at least two different mass center positions;

and determining the offset load value corresponding to each total weight and the centroid position.

Technical Field

The invention relates to the technical field of transportation safety, in particular to an overload and unbalance load detection metering quantity transmission device and a detection metering quantity transmission method.

Background

With the development of freight and logistics, the existence of container overload and unbalance loading factors often causes the occurrence of transportation safety accidents. The existing container weighing and overload and unbalance loading detection device can detect the weight, overload and unbalance loading conditions of the container when the container is hoisted, but a metering and tracing device of the container weighing, overload and unbalance loading detection device is lacked, so that the verification standards of the container weighing and overload and unbalance loading detection device are not uniform. The container weighing and overload and unbalance loading detection device has poor detection precision, and potential safety hazards of container transportation are easily caused.

Disclosure of Invention

In view of the above, the present invention provides an overload and unbalance load detection measurement amount transmission device and a detection measurement amount transmission method, which improve the precision of container weighing and overload and unbalance load detection and provide technical support for the safe transportation of a container.

In a first aspect, a first embodiment of the present invention provides an overload and unbalance load detection metering device, including:

a container body;

the center of mass adjusting mechanism is arranged on the container body, a first weight body is further arranged on the center of mass adjusting mechanism, and the center of mass adjusting mechanism is configured to drive the first weight body to move relative to the container body so as to change the center of mass position of the container body.

Further, the container body includes:

the mass center adjusting mechanism is movably arranged on the bottom frame;

the upright post is vertically arranged above the underframe; and

the top frame is arranged above the upright post and is used for being matched with a lifting appliance during lifting.

Further, the chassis includes:

the first longitudinal beams extend along the longitudinal direction, and a space is formed between every two first longitudinal beams; and

the first transverse beams extend along the transverse direction, a space is formed between the first transverse beams, and a first inner side space is formed between the first transverse beams and the first longitudinal beams;

wherein the transverse direction is perpendicular to the longitudinal direction;

the mass center adjusting mechanism is movably arranged in the first inner side space and is configured to drive the first weight body to move along the transverse direction and/or the longitudinal direction.

Furthermore, a first slide rail is arranged on one side, facing the first inner side space, of the first longitudinal beam, the first slide rail extends along the longitudinal direction, and the center of mass adjusting mechanism is arranged on the first slide rail in a sliding mode and then drives the first weight body to move along the longitudinal direction.

Further, the center of mass adjustment mechanism includes:

the two second longitudinal beams are arranged at intervals along the transverse direction and are arranged on the first sliding rail in a sliding manner; and

the two second cross beams are arranged between the second longitudinal beams at intervals along the longitudinal direction, a second inner side space is formed between the second cross beams and the second longitudinal beams, a second slide rail is arranged on one side of each second cross beam facing the second inner side space, and the second slide rail extends along the transverse direction;

the center of mass adjusting mechanism is configured to drive the first weight body to move along the transverse direction through the second slide rail.

Further, the overload and unbalance loading detection metering transmission device further comprises:

and the tray is arranged on the second slide rail in a sliding manner and is used for bearing the first weight body.

Further, the overload and unbalance loading detection metering transmission device further comprises:

one end of the first telescopic push rod is abutted against the first cross beam, the other end of the first telescopic push rod is abutted against the second cross beam, and the first telescopic push rod is configured to be controlled to stretch and further drive the mass center adjusting mechanism to slide along the first slide rail; and

and one end of the second telescopic push rod is abutted to the second longitudinal beam, and the other end of the second telescopic push rod is abutted to the tray and is configured to be controlled to stretch and further drive the tray to slide along the second sliding rail.

Further, the overload and unbalance loading detection metering transmission device further comprises:

a lateral displacement sensor provided on the second longitudinal beam and configured to detect a displacement of the first weight body in the lateral direction; and

a longitudinal displacement sensor disposed on the first cross member and configured to detect displacement of the center of mass adjustment mechanism in the longitudinal direction.

Furthermore, the number of the overload and unbalance load detection metering quantity transmission devices is two, and the overload and unbalance load detection metering quantity transmission devices are connected in parallel through a connecting plate.

In a second aspect, a second embodiment of the present invention provides a detected measurement transmission method based on the overload and unbalanced load detected measurement transmission apparatus according to any one of the first aspect, including:

adjusting the weight and the position of the mass center of the overload and unbalance loading detection metering transmission device;

respectively measuring unbalance loading values when the overload and unbalance loading detection metering transmission device is hoisted for at least two different total weights and at least two different mass center positions;

and determining the offset load value corresponding to each total weight and the centroid position.

The overload and unbalance load detection metering transmission device provided by the embodiment of the invention drives the first weight body to move relative to the container body through the mass center adjusting mechanism, so that the mass center position of the container body is changed, container hoisting under different weight and overload and unbalance load conditions in actual operation is simulated, traceability is provided for weighing and overload and unbalance load metering of the container, the verification precision is improved, and further technical guarantee is provided for safe transportation of the container.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

FIG. 1 is an isometric view of an overload detection metrology transfer device in accordance with a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a chassis according to a first embodiment of the present invention;

FIG. 3 is a left side view of the overload and unbalance loading detecting measurement transmission device according to the first embodiment of the present invention;

FIG. 4 is a sectional view taken along the line A-A of the overload detection and measurement device according to the first embodiment of the present invention;

FIG. 5 is a sectional view taken along the line B-B of the overload and unbalance loading detecting and measuring device in accordance with the first embodiment of the present invention;

FIG. 6 is a cross-sectional view taken along the line C-C of the overload and unbalance loading detecting and measuring device according to the first embodiment of the present invention;

FIG. 7 is a schematic connection diagram of a plurality of overload and unbalance loading detecting measurement transmission devices according to a first embodiment of the present invention;

FIG. 8 is a flow chart of a method of detecting a metered dose delivery in accordance with a second embodiment of the present invention;

FIG. 9 is a schematic view of a weighing error of a container after being hoisted when an unbalance loading occurs;

FIG. 10 is a schematic view of the longitudinal stress of a container after the container is hoisted and when the container is subjected to unbalance loading;

fig. 11 is a schematic diagram of the width direction stress of the container when the container is subjected to unbalance loading after being hoisted.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

With the development of logistics technology, the safety of freight transportation such as railways and docks is a key point of attention. The containers are used for loading cargo and are placed on transport vehicles or ships for logistics transportation in cooperation with spreaders, such as gantry cranes or face cranes. In the process, if the load capacity of the container exceeds the bearable load, or the mass center of the container deviates from the geometric center of the whole container too much due to problems such as stacking and the like, safety accidents can be caused. Therefore, the container needs to be detected for overload and unbalance loading to ensure that the weight and the position of the mass center of the container are within a safe range, so that the safety problem cannot occur in the transportation process.

The existing device for weighing and detecting the overload and unbalance loading, which is arranged on a gantry crane hanger or a reach stacker, can detect the weight and unbalance loading condition of a container during hoisting. For example, the apparatus may comprise a control unit for performing data operations; the weighing device is electrically connected to the control unit and used for measuring weight and returning data to the control unit; the angle sensor is electrically connected to the control unit and used for detecting the angle offset and returning data to the control unit; the control unit calculates the unbalance loading value of the container based on the data and compares the unbalance loading value with the safety range of the unbalance loading value specified by the national standard so as to judge whether the container meets the safety requirement and can carry out logistics transportation.

However, there is no unified certification standard. For example, a detection device may have objective systematic errors in that the indicated value (measured value) is in error from the actual value under different detections. Therefore, when different containers are detected, the indication errors of the detection devices are different, and the measured values are also measured based on different system errors, so that the detection precision is very limited.

Therefore, a container weighing and ultra-unbalance-loading detection metering and tracing device is needed to be provided, so that container detection has tracing performance, different detections are performed based on the same set of standards, the detection precision is improved, and the logistics transportation safety is guaranteed.

Fig. 1 to 7 are schematic views of an overload and unbalance loading detection metering device according to a first embodiment of the present invention. As shown in fig. 1, the overload and unbalance loading detection metering transmission device includes a container body 1 and a center of mass adjusting mechanism 2 disposed on the container body 1. Wherein, the mass center adjusting mechanism 2 is also provided with a first weight body 3. The mass center adjusting mechanism 2 can drive the first weight body 3 to move relative to the container body 1 so as to change the mass center position of the container body 1.

The overload and unbalance load detection metering quantity transmission device can be applied to overload and unbalance load detection of the container. In an alternative implementation, as shown in fig. 1, a second weight body 3 'may be provided on the container body 1, the second weight body 3' being used to apply a nominal load to the container body 1 to simulate the weight of the container in actual transportation operations. That is, the first weight body 3 serves as an adjustable weight body to change the position of the center of mass of the container, and the second weight body 3' serves as a fixed weight body (corresponding to the cargo) to apply a load to the container. The position of the first weight body 3 is adjusted by the mass center adjusting mechanism 2, the mass center position of the container body 1 is changed, and the unbalance load value of the overload and unbalance load detection metering transmission device is measured under the hoisting of the portal crane or the reach stacker and is used as the verification standard of the overload and unbalance load detection of the container.

That is to say, the overload and unbalance load detection metering device of the embodiment is used as a container in actual operation, and a spreader is used for lifting to measure the corresponding unbalance load value, so that different containers in actual operation have the uniform verification standard based on the overload and unbalance load detection metering device of the embodiment when overload and unbalance load detection is carried out, and the verification precision is ensured.

Wherein, with respect to the offset value, refer to fig. 9-fig11, the container is usually hoisted by using four corners of the top surface as hoisting points, A, B, C and D respectively, and F is the force detected by each of the four hoisting points₁、F₂、F₃、F₄The length of the container is L, the width of the container is W, the theoretical gravity center point of the container is O, a space coordinate system is established as OXYZ, when the gravity center of the container deflects, the container deflects S in the length direction and H in the width direction, and the actual gravity center point of the container is O'.

Specifically, the offset loading value of the container is calculated as follows:

obtaining by calculation according to the moment balance principle:

from the formula (1) and the formula (2), it can be obtained:

wherein, F₁、F₂、F₃、F₄The weight of each lifting point of the container, W the width of the container, L the length of the container, S the unbalance loading amount of the container in the length direction and H the unbalance loading amount of the container in the width direction.

The unbalance loading condition of the gravity center of the container has great influence on the stability of train transportation, the unbalance loading amount is too large, and the stability of train transportation is seriously influenced, for example, if the container is loaded in a train box, the stability of the train in the running process is influenced if the unbalance loading amount of the container in the length direction is too large. The safety threshold of the unbalance loading quantity of the container is set, the operator is reminded and the safety of the equipment is limited, and the safety performance can be further improved. In connection with the "railway freight loading and consolidation rules", the allowable limit value of the center of gravity of the container shifted from the transverse center line of the vehicle is 100mm, and the allowable limit value of the center of gravity of the container freight shifted from the longitudinal center line of the vehicle is 600mm (20-foot container) or 1200mm (40-foot container). In order to improve the container transportation safety, the container hoisting unbalance loading overrun range is based on an allowable limit value. In other alternatives, the unbalance loading limit value can also be defined according to actual conditions.

The container may be a frame container, a box container or other type of container with various applications, as shown in fig. 1, the frame container is taken as an example in this embodiment, and the frame container body 1 includes a bottom frame 11, a vertical column 12 and a top frame 13. The center of mass adjusting mechanism 2 and the second weight body 3' are provided on the base frame 11. The upright 12 stands above the base frame 11. The top frame 13 is disposed above the vertical column 12 and is used for cooperating with a spreader when the container is hoisted. In the present embodiment, the center of mass adjusting mechanism 2 is located in the middle of the bottom frame 11, and the second weight bodies 3' are located on the bottom frame 11 on both sides of the center of mass adjusting mechanism 2. Four upright posts 12 are arranged and respectively vertically arranged at four corners of the bottom frame 11. The top frame 13 is opposite to the bottom frame 11, and a column 12 is arranged between the top frame and the bottom frame. Therefore, the side surface and the top surface of the container body 1 are hollow, and some goods with large volume and irregular appearance can be placed.

Of course, in some other alternative implementations, the container body 1 may also have side and/or top surfaces, forming a partially or fully closed box. Alternatively, the container body 1 may not have the top frame 13, but only the bottom frame 11 and the upright post 12, wherein the upright post 12 is used to cooperate with a spreader to perform lifting. The logistics transportation of the container loaded with goods can be realized, and the specific situation of whether the container body 1 is provided with a side surface, a top surface or a top frame 13 can be adjusted according to the volume, the shape, the quantity and the like of the loaded goods.

As shown in fig. 2, the underframe 11 comprises at least two first cross members 111 and at least two first longitudinal members 112, so that a frame-like structure can be built up. In the present embodiment, the underframe 11 comprises four first cross members 111 and two first longitudinal members 112. The two first longitudinal beams 112 are arranged in parallel, a space is formed between the two first longitudinal beams, four first cross beams 111 are arranged in the space at intervals, the four first cross beams 111 are also mutually parallel, and two ends of the two outermost first cross beams 111 are respectively connected to the ends of the two first longitudinal beams 112. The extending direction of the first cross beam 111 is a transverse direction X, the extending direction of the first longitudinal beam 112 is a longitudinal direction Y, and the transverse direction X is perpendicular to the longitudinal direction Y. That is, the frame structure of the chassis 11 can be regarded as being formed by three rectangles with the same width, and the sides with the same width are used as the common sides and are arranged adjacently in sequence.

A first inner side space 10 is formed between the first cross beam 111 and the first longitudinal beam 112, and the mass center adjusting mechanism 2 is movably arranged in the first inner side space 10 and can drive the first weight body 3 to move along the transverse direction X and/or the longitudinal direction Y in the first inner side space 10 relative to the container body 1, so as to adjust the mass center of the transverse direction X and/or the longitudinal direction Y. In the present embodiment, the first inside space 10, that is, the space in the middle of the three rectangles, and the space above the middle rectangle, are used to accommodate the centroid adjusting mechanism 2.

As shown in fig. 2, a first sliding rail 1121 is disposed on a side surface of the first longitudinal beam 112 facing the first inner side space 10, the centroid adjusting mechanism 2 is movably disposed on the first sliding rail 1121, and the first sliding rail 1121 is used for supporting the centroid adjusting mechanism 2 and providing a movement basis for the centroid adjusting movement of the centroid adjusting mechanism 2. Since the first longitudinal beams 112 have two, it is preferable that the first sliding rails 1121 be provided on both the first longitudinal beams 112, so that the center of mass adjustment movement of the center of mass adjustment mechanism 2 is more stable. Of course, in some other alternative implementations, the first sliding rail 1121 may be disposed only on the first longitudinal beam 112 on any one side.

The first slide rail 1121 is a linear slide rail, is disposed on the first longitudinal beam 112, extends along the longitudinal direction Y, and guides the longitudinal Y motion of the centroid adjusting mechanism 2. In order to enable the centroid adjusting mechanism 2 to move along the first slide rail 1121, a first slider 1121a (see fig. 5) is slidably disposed on the first slide rail 1121, and the first slider 1121a is fixedly connected to the centroid adjusting mechanism 2, so that the centroid adjusting mechanism 2 can slide along the first slide rail 1121a through the first slider 1121a to drive the first weight body 3 to move in the longitudinal direction Y, and further adjust the centroid position of the container body 1 in the longitudinal direction Y. The first slider 1121a is used for restricting and guiding the movement of the center of mass adjustment mechanism 2, and the slider 1121a and the first slide rail 1121 are used as sliding components matched with each other, so that the frictional damping is smaller, and the sliding is more stable.

The first slide rail 1121 is disposed on the first longitudinal beam 112, and the first slider 1121a and the centroid adjusting mechanism 2 are connected by welding or fastening members, wherein the fastening members are connected by pins, screws, or the like.

As shown in fig. 2 and 5, in the present embodiment, the centroid adjusting mechanism 2 is also a frame-type structure, and includes two second cross beams 21 parallel to each other and two second longitudinal beams 22 parallel to each other. Wherein the second beams 21 extend in the transverse direction X, the second stringers 22 extend in the longitudinal direction Y, and the ends of each second beam 21 and each second stringer 22 are connected in sequence to form a rectangular frame structure. With this structure, the first slider 1121a is fixedly connected to the second longitudinal beam 22.

A second inner space 20 is formed between the second cross member 21 and the second side member 22, and a second slide rail 211 is provided on a surface of the second cross member 21 facing the second inner space 20. Similar to the first slide rail 1121, the second slide rail 211 is also a linear guide rail, which extends along the transverse direction X and is used for driving the first weight body 3 to move along the transverse direction X and further adjusting the position of the mass center of the transverse direction X. The second slide rail 211 may be disposed on the second cross member 21 on both sides to improve the stability of the center of mass adjustment movement, or may be disposed only on the second cross member 21 on either side. The second slide rail 22 and the first slide rail 21 respectively drive the first weight body 3 to move along the longitudinal direction Y and the transverse direction X, so that the first weight body 3 can be adjusted in any direction and at any distance in the horizontal plane, and the position of the mass center of the container body 1 can be flexibly adjusted to meet the verification requirements of containers with different loads and different overload and unbalance loading conditions.

As shown in fig. 5, in the present embodiment, a tray 31 is further disposed on the centroid adjusting mechanism 2, and the tray 31 is used for carrying the first weight body 3. A second sliding block 211a is slidably disposed on the second sliding rail 211, and the second sliding block 211a is fixedly connected to the tray 31, so that the tray 31 can drive the first weight body 3 to slide along the second sliding rail 211 through the second sliding block 211a, and perform center-of-mass adjustment in the transverse direction X. Wherein, the first weight body 3 should be fixed on the tray 31, so that when the overload and unbalance loading detection measurement transmission device is hoisted for detection, the first weight body 3 can not shake by itself to influence the position of the mass center.

The second slide rail 211 is disposed on the second cross beam 21, and the second slider 211a is connected to the tray 31 by welding or fastening, wherein the fastening includes pin connection, screw connection, and the like.

In an alternative implementation, the centroid adjusting mechanism 2 may further include a plurality of third cross beams (not shown) and a plurality of third longitudinal beams (not shown), which are similar to the aforementioned cross beams and longitudinal beams, and which also constitute a frame structure and are disposed in the second inner side space 20. Tray 31 is fixed on the frame of constituteing by third crossbeam and third longeron, and the third crossbeam and the second slider 211a fixed connection in the outside, and then can follow second slider 211a and move along second slide rail 211, drive tray 31 and first weight body 3 along horizontal X motion, and then make the barycenter adjustment of horizontal X. That is, the frame composed of the second cross member 21 and the second longitudinal member 22 is embedded in the frame composed of the first cross member 111 and the first longitudinal member 112, and the frame composed of the third cross member and the third longitudinal member is embedded in the frame composed of the second cross member 21 and the second longitudinal member 22. Because the arrangement is similar, it will not be described in detail herein. In the frame-type structure, a sliding rail may be disposed in a hollow area inside the frame, and a sliding member (in this embodiment, the first weight 3) engaged with the sliding rail is disposed in the hollow area, so that the sliding member slides in the hollow area of the frame, thereby saving space.

As shown in fig. 2 and 4, the overload and unbalance load detection metering amount transmission device of the present embodiment may further include a first telescopic push rod 41 and a second telescopic push rod 42. One end of the first telescopic push rod 41 abuts against the first cross beam 111, and the other end abuts against the second cross beam 21, and can be controlled to be telescopic so as to drive the centroid adjusting mechanism 2 to slide along the first slide rail 1211. One end of the second telescopic push rod 42 abuts against the second longitudinal beam 22, and the other end abuts against the tray 31 or the third longitudinal beam, and can be controlled to be stretched and retracted to drive the tray 31 to slide along the second slide rail 211.

The first telescopic push rod 41 and the second telescopic push rod 42 can be electric push rods and are electrically connected to a control system (not shown), the control system is used for controlling the first telescopic push rod 41 and/or the second telescopic push rod 42 to be telescopic in a preset degree, and then the first weight body 3 is driven to perform mass center adjustment in different degrees on the transverse direction X and/or the longitudinal direction Y, so that the detection requirements under different overload and unbalance loading conditions are met.

As shown in fig. 4 and 6, the overload and unbalance load detection measurement amount transmission device of the present embodiment may further include a lateral displacement sensor 51 and a longitudinal displacement sensor 52. The lateral displacement sensor 51 is provided on the second side member 22, and detects displacement of the first weight body 3 in the lateral direction X. The longitudinal displacement sensor 52 is provided on the first cross member 111 for detecting the displacement of the first weight body 3 in the longitudinal direction Y. Preferably, the lateral displacement sensor 51 and the longitudinal displacement sensor 52 may be provided in plural, and the measurement values are averaged to improve the accuracy of the displacement detection.

The overload and unbalance loading detection metering transmission device can further comprise a control system, wherein the control system is electrically connected with the first telescopic push rod 41 and the second telescopic push rod 42, and is also electrically connected with the transverse displacement sensor 51 and the longitudinal displacement sensor 52, and is used for recording displacement detection data returned by the transverse displacement sensor 51 and the longitudinal displacement sensor 52. In addition, a display screen (not shown) can be arranged on the control system and used for displaying the moving displacement of the telescopic push rod and the position of the mass center of the container.

The overload and unbalance loading detection metering quantity transmission device can also comprise an attitude detection module (not shown in the figure). The attitude detection module is fixedly connected with the container body 1 and used for detecting the unbalance loading angle of the container body 1 in the hoisting process. In order to improve the weighing and unbalance loading precision of the container, the measurement precision of the attitude detection module is 0.01 degrees, so that the weighing and unbalance loading integral precision of the container can be ensured to be 0.2 percent.

The container body 1 can be formed by welding sectional materials, the structural strength of the sectional materials is high, deformation is small when hoisting is conducted, and the position of the center of mass of the container cannot be influenced by deformation of a hoisting structure. For example, the first cross beam 111 and the second cross beam 112 of the underframe 11 may be H-shaped steel, and the upright 12 may be formed by buckling and welding channel steel.

Standard weights can be selected for the first weight body 3, and the precision of the weights is 1kg, so that the weight adjustment is more accurate.

The transverse displacement sensor 51 and the longitudinal displacement sensor 52 can adopt high-precision laser displacement sensors, and the measurement precision is 1mm, so that the displacement measurement data are more accurate.

As shown in fig. 7, in order to meet more different detection requirements, for example, the size of a single overload detection metering device is 20 inches, and the detection requirement is 40 inches of containers, two overload detection metering devices 6 of the present embodiment may be provided. The two overload and unbalance load detection metering quantity transmission devices 6 are connected in parallel through the connecting plate 7, the connecting plate 7 can be provided with a plurality of connecting plates which are respectively arranged at different positions of the overload and unbalance load detection metering quantity transmission devices, partially cover gaps at the contact surfaces of the two devices and are fixed through fasteners. In the gap between the contact surfaces of the two overload and unbalance load detection metering quantity transmission devices, an ear plate (not shown in the figure) can be arranged to eliminate the gap and increase the contact area, so that the connection is more stable. In addition, according to actual requirements, a plurality of overload and unbalance load detection metering devices can be connected in a mode of connecting plates 7 and/or lug plates so as to detect containers with larger sizes.

The overload and unbalance loading detection measurement transmission device of the embodiment drives the first weight body on the overload and unbalance loading detection transmission device to move relative to the container body through the mass center adjusting mechanism, so that the mass center position of the container body is changed, container hoisting under different weight and overload and unbalance loading conditions in actual operation is simulated, traceability is provided for weighing and overload and unbalance loading measurement of the container, the verification precision is improved, and further technical support is provided for safe transportation of the container.

Fig. 8 is a schematic step diagram of a measurement quantity transmission method based on the overload and unbalance-load measurement quantity transmission device in the first embodiment according to a second embodiment of the present invention. As shown in fig. 8, the method for detecting the measurement amount includes:

and S100, adjusting the weight and the mass center position of the overload and unbalance loading detection metering transmission device.

The weight is determined by the total weight of the first weight body 3 and the second weight body 3', and in this embodiment, the number of the weights can be increased or decreased. The position of the mass center is adjusted by driving the first weight body 3 to move by the mass center adjusting mechanism 2.

And S200, measuring an offset load value.

The over-unbalance-load detection measurement transmission device can be hoisted by using a portal crane or a front crane, and after the over-unbalance-load detection measurement transmission device is stable and static, an unbalance-load value is measured. And after the material is put down, the material is lifted again and is repeated for 5 times, and 5 groups of unbalance loading values are recorded and averaged.

Wherein, the height of the overload and unbalance loading detection metering transmission device after each lifting is kept the same. And the angle between the horizontal plane and the horizontal plane is guaranteed to be less than or equal to 0.5 degrees after the suspension is stable, so that the measured data is within a controllable error range.

And S300, judging whether the sample capacity meets the requirement. If not, the process proceeds to step S400. If yes, the process proceeds to step S500.

The sample may include a plurality of overload and unbalance loading detection devices of common hangers, or may be increased or decreased in a targeted manner by a detection device actually used in the operation.

And S400, adjusting the weight and/or the position of the mass center.

The weight of the first weight body 3 and/or the position of the first weight body 3 are/is adjusted to obtain an overload detection metering device with different load capacities and/or different mass center positions. In this embodiment, this can be achieved by changing the number of weights as the first weight body 3 and moving the weights by the center of mass adjusting mechanism 2.

S500, determining a plurality of groups of offset load values.

Namely, for the overload and unbalance load detection metering quantity transmission devices under at least two different total weights and at least two different mass center positions adjusted through the steps, unbalance load values when the overload and unbalance load detection metering quantity transmission devices are hoisted are respectively measured, and unbalance load values corresponding to the total weights and the mass center positions are determined.

It is easy to understand that several groups of data measured by the overload and unbalance load detecting and measuring device of the present embodiment should satisfy the unbalance load amount specified in the aforementioned "railway freight loading and strengthening rules". If not, a re-measurement is required, or a maintenance calibration of the device is performed.

Therefore, for containers with different loading capacities and different unbalance loading degrees, the container overload and unbalance loading detection metering quantity transmission device can be used as a detection standard during detection, and has metering traceability.

In addition, for the weighing of gantry crane hangers or reach cranes and the calibration of overload and unbalance loading detection systems, for example, need to be performed periodically to ensure the detection accuracy of the system.

The detection measurement quantity transmission method of the embodiment provides a feasible method for the measurement traceability of the overload and unbalance-load detection measurement quantity transmission device of the container.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.