A bolster for detecting weight and eccentric load of railway freight cars and a detection method thereof

Abstract

The present invention discloses a bolster for detecting the weight and unbalanced load of railway freight cars, comprising a bolster body and a center plate fixed to the middle of the bolster body, the center plate comprising an upper center plate and a lower center plate, the upper center plate and the lower center plate are respectively provided with an upper weighing sensor and a lower weighing sensor, and the upper end surfaces at both ends of the bolster body are respectively fixed with a first detection side bearing and a second detection side bearing. A bolster for detecting the weight and unbalanced load of railway freight cars using the above structure is used to carry out railway freight car weighing, overload detection and unbalanced load detection, and real-time detection is carried out during the loading process to avoid the departure of freight cars with serious unbalanced loads, with low cost and convenient maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of cooling systems, and in particular to a bolster for detecting the weight and eccentric load of a railway freight car and a detection method thereof. Background Art

[0002] As the main artery of the national economy and an important national infrastructure, the railway plays a vital role in the economic and social development of our country. Railway operation safety is the focus, and safety must be put first. With the increase in railway transportation speed and capacity, it is necessary to further strengthen the overload and unbalanced load detection of freight cars to ensure railway transportation safety.

[0003] At present, the overload and unbalanced load detection of freight cars in railway transportation is mainly completed by installing train overload and unbalanced load devices in the operating line section. When an overloaded or unbalanced vehicle is found, the vehicle will be detained. There are transportation safety hazards between the departure point and the detention site. It takes time to handle the load and rebalance the vehicle after the detention, which affects the vehicle operation efficiency. Overload and unbalanced loads are generally installed on the main line and trunk ballast line. The overbalanced vehicle speed is high, so the detection accuracy is low and the equipment status stability is poor. Because it is installed on the main line and trunk railway, the construction is difficult. The equipment installation line requirements are high, and the straight section of the line is more than 200 meters. It is difficult to select a line that meets the on-site installation conditions.

[0004] Most of the goods transported by rail need to be weighed and measured by track scales, and provide fair data for both parties in trade settlement. Therefore, the measurement accuracy and weighing efficiency of track scales directly affect the economic interests of customers, enterprises and railways.

[0005] At present, the weighing and measurement of freight cars in railway transportation are mainly completed by automatic track scales. According to the technical requirements of automatic track scales, automatic track scales need to be installed on a ballastless track bed of more than 50 meters, which requires a large project investment. The installation line requires a straight section of more than 150 meters, and the selection of a line that meets the on-site installation conditions is difficult and costly. Summary of the invention

[0006] The purpose of the present invention is to provide a bolster for detecting the weight and unbalanced load of railway freight cars for railway freight car weighing, overload detection and unbalanced load detection, real-time detection during the loading process, avoiding the departure of freight cars with serious unbalanced load, with low cost and convenient maintenance.

[0007] To achieve the above-mentioned purpose, the present invention provides a bolster for detecting the weight and unbalanced load of a railway freight car, comprising a bolster body and a center plate fixed to the middle of the bolster body, the center plate comprising an upper center plate and a lower center plate, the upper center plate and the lower center plate are respectively provided with an upper weighing sensor and a lower weighing sensor, and a first detection side bearing and a second detection side bearing are respectively fixed to the upper end surfaces at both ends of the bolster body.

[0008] Preferably, the first detection side bearing includes a first receiving plate and a first weighing sensor arranged up and down; the second detection side bearing includes a second receiving plate and a second weighing sensor arranged up and down.

[0009] Preferably, a mounting plate is fixed at the bottom of each of the first load cell and the second load cell, and the mounting plate is fixed in a mounting groove on the end surface of the bolster body.

[0010] Preferably, a wear-resistant plate is arranged between the upper center plate and the lower center plate, an upper weighing sensor is arranged on the lower end surface of the upper center plate, a lower weighing sensor is fixed on the upper end surface of the lower center plate, the upper weighing sensor and the lower weighing sensor are connected to a controller through wires, and the controller is connected to the first weighing sensor and the second weighing sensor.

[0011] A detection method for detecting the weight and eccentric load of a railway freight car based on the above-mentioned bolster, the specific steps are as follows:

[0012] Step S1: rotate the corresponding weighing sensor to collect data through the communication between the management machine and the controller;

[0013] Step S2: collecting the values ​​obtained by the first weighing sensor and the second weighing sensor;

[0014] Step S3: determining whether the truck is overloaded by using the values ​​obtained by the first weighing sensor and the second weighing sensor;

[0015] Step S4: When the truck is not overloaded, the corresponding weighing sensor indicates the weight of the truck; when the truck is overloaded, the sum of the value of the sensor detecting the overload and the data of the corresponding weighing sensor indicates the weight of the truck;

[0016] Step S5: Compare the truck weight with the set value to determine whether it is overloaded.

[0017] Furthermore, the specific steps of determining the overload are as follows: when the detection value of the first weighing sensor or the second weighing sensor exceeds the set value, the overload is determined.

[0018] Therefore, the present invention adopts a bolster of the above structure for detecting the weight and unbalanced load of railway freight cars to carry out railway freight car weighing, overload detection and unbalanced load detection, and performs real-time detection during the loading process to avoid the departure of freight cars with serious unbalanced loads, with low cost and easy maintenance.

[0019] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a bolster structure for detecting the weight and eccentric load of a railway freight car according to the present invention;

[0021] Reference numerals

[0022] 1. Rocker body; 2. Controller; 3. First detection side bearing; 31. First receiving plate; 32. First weighing sensor; 33. Mounting plate; 4. Upper center plate; 41. Upper weighing sensor; 5. Lower center plate; 51. Lower weighing sensor; 6. Wear-resistant plate; 7. Second detection side bearing; 71. Second receiving plate; 72. Second weighing sensor. DETAILED DESCRIPTION

[0023] Example

[0024] Figure 1 The present invention is a schematic diagram of a bolster structure for detecting the weight and eccentric load of a railway freight car. As shown in the figure, a bolster for detecting the weight and eccentric load of a railway freight car comprises a bolster body 1 and a core plate fixed to the middle of the bolster body 1, the core plate comprises an upper core plate 4 and a lower core plate 5, the upper core plate 4 and the lower core plate 5 are respectively provided with an upper weighing sensor 41 and a lower weighing sensor 51, a wear-resistant plate 6 is provided between the upper core plate 4 and the lower core plate 5, an upper weighing sensor 41 is provided on the lower end surface of the upper core plate 4, a lower weighing sensor 51 is fixed on the upper end surface of the lower core plate 5, and the upper weighing sensor 41 and the lower weighing sensor 51 are connected to the controller 2 through wires.

[0025] The first detection side bearing 3 and the second detection side bearing 7 are fixed to the upper end surfaces of both ends of the bolster body 1. The first detection side bearing 3 includes a first receiving plate 31 and a first weighing sensor 32 arranged up and down; the second detection side bearing 7 includes a second receiving plate 71 and a second weighing sensor 72 arranged up and down. The bottoms of the first weighing sensor 32 and the second weighing sensor 72 are both fixed with mounting plates 33, and the mounting plates 33 are fixed in the mounting grooves of the end surfaces of the bolster body 1. The controller 2 is connected to the first weighing sensor 32 and the second weighing sensor 72.

[0026] A detection method for detecting the weight and eccentric load of a railway freight car, the specific steps are as follows:

[0027] Step S1: The corresponding weighing sensor is rotated to collect data through the communication between the management machine and the controller. When the lower weighing sensor 51 is damaged, the upper weighing sensor 41 is selected to facilitate the maintenance and replacement of the lower center plate 5.

[0028] Step S2: Collect the values ​​obtained by the first weighing sensor and the second weighing sensor.

[0029] Step S3: Determine whether the truck is overloaded by using the values ​​obtained by the first weighing sensor and the second weighing sensor. The specific steps for determining overload are as follows: when the value detected by the first weighing sensor or the second weighing sensor exceeds the set value, overload is determined. When there is no overload, the first weighing sensor or the second weighing sensor is zero (or when the overload is small, the value detected by one of the sensors is less than the set value).

[0030] Step S4: When the truck is not overloaded, the corresponding weighing sensor indicates the weight of the truck; when the truck is overloaded, the sum of the value of the sensor detecting the overload and the data of the corresponding weighing sensor indicates the weight of the truck;

[0031] Step S5: Compare the truck weight with the set value to determine whether it is overloaded.

[0032] Therefore, the present invention adopts a bolster of the above structure for detecting the weight and unbalanced load of railway freight cars to carry out railway freight car weighing, overload detection and unbalanced load detection, and performs real-time detection during the loading process to avoid the departure of freight cars with serious unbalanced loads, with low cost and easy maintenance.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A bolster for detecting the weight and eccentric load of a railway freight car, comprising a bolster body and a core plate fixed to the middle of the bolster body, characterized in that: The center plate includes an upper center plate and a lower center plate, and the upper center plate and the lower center plate are respectively provided with an upper weighing sensor and a lower weighing sensor, and the upper end surfaces of both ends of the bolster body are respectively fixed with a first detection side bearing and a second detection side bearing; the first detection side bearing includes a first receiving plate and a first weighing sensor arranged up and down; the second detection side bearing includes a second receiving plate and a second weighing sensor arranged up and down; the bottom of the first weighing sensor and the second weighing sensor are both fixed with a mounting plate, and the mounting plate is fixed in a mounting groove on the end surface of the bolster body; a wear-resistant plate is arranged between the upper center plate and the lower center plate, an upper weighing sensor is arranged on the lower end surface of the upper center plate, and a lower weighing sensor is fixed on the upper end surface of the lower center plate, and the upper weighing sensor and the lower weighing sensor are connected to a controller through wires, and the controller is connected to the first weighing sensor and the second weighing sensor; The specific steps of the detection method are as follows: Step S1: rotate the corresponding weighing sensor to collect data through the communication between the management machine and the controller; Step S2: collecting the values ​​obtained by the first weighing sensor and the second weighing sensor; Step S3: Determine whether the truck is overloaded by using the values ​​obtained by the first weighing sensor and the second weighing sensor; the specific steps for determining overload are as follows: when the value detected by the first weighing sensor or the second weighing sensor exceeds the set value, determine that the truck is overloaded; Step S4: When the truck is not overloaded, the corresponding weighing sensor indicates the weight of the truck; when the truck is overloaded, the sum of the value of the sensor detecting the overload and the data of the corresponding weighing sensor indicates the weight of the truck; Step S5: Compare the truck weight with the set value to determine whether it is overloaded.

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