Real-time measuring device for excavation of screen scarifier
By installing rope sensors and distance sensors on the railway screening machine, the excavation depth and width can be measured in real time, solving the problem of lack of real-time measurement in existing technologies, improving operational accuracy and reducing the labor intensity of operators.
Patent Information
- Application Number
- CN202423244764.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing railway cleaning machines lack devices for real-time measurement of excavation depth and width, causing the quality of work to depend on the operator's experience and increasing labor intensity.
The system employs left and right measuring mechanisms, including a rope sensor and a distance sensor, respectively. By measuring the change in distance between the excavating mechanism and the vehicle body, the system calculates the excavation depth and width using the Pythagorean theorem, and combines laser or ultrasonic sensors for real-time measurement.
It enables real-time measurement of excavation depth and width, reduces errors from manual estimation, improves work quality and operational accuracy, and reduces labor intensity.
Smart Images
Figure CN223646873U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to railway line maintenance technical field, especially railway screen excavating measuring device. BACKGROUND
[0002] The operation mechanism of railway line ballast screen machine is mainly composed of excavating mechanism, screening mechanism and backfilling mechanism. The excavating mechanism excavates the ballast on the line and transports it to the screening mechanism for screening, and the unqualified ballast is removed. The backfilling mechanism distributes the screened ballast to the left and right sides of the rails according to the requirements of the line. The excavating mechanism is generally divided into left and right parts and located on both sides of the vehicle body. The left and right excavating mechanisms can operate independently. The up-down movement of the excavating mechanism can change the excavating depth, and the left-right movement of the excavating mechanism can change the excavating width. According to the super elevation of the line, the lateral drainage slope of the line and the different amount of ballast that needs to be screened, the requirements for excavating depth and width are also different. The excavating width and depth need to be changed dynamically in real time during operation. The currently used railway screen machine does not have a device for real-time measurement of excavating depth and width. The operator needs to estimate by naked eye observation or manually measure after excavating to obtain the excavating depth and width. The quality of the operation depends heavily on the experience and proficiency of the operator, and also increases the labor intensity of the operator. Therefore, there is an urgent need for a device that can measure the excavating depth and width in real time. SUMMARY
[0003] The utility model aims at providing a kind of railway screen machine excavating real-time measuring device, the distance variation quantity of two fixed points on the excavating mechanism relative to railway screen machine vehicle body is measured to calculate the movement distance of excavating mechanism in space vertical direction and horizontal direction, to measure excavating depth and width.
[0004] The technical scheme of the utility model is: including left measuring mechanism and right measuring mechanism;The left measuring mechanism includes left side pull rope sensor installed on the left side of railway screen machine vehicle body, left side distance measuring sensor, left side distance measuring sensor installation plate is installed at the left side of railway screen machine vehicle body below left side pull rope sensor, left side distance measuring sensor is fixed in the installation hole of left side distance measuring sensor installation plate, the left measuring mechanism further includes left side distance measuring sensor plate installed on left side excavating mechanism, the free end of the pull rope of left side pull rope sensor is fixed on left side distance measuring sensor plate, left side distance measuring sensor plate is oppositely arranged with left side distance measuring sensor;Right measuring mechanism and left measuring mechanism are the same in structure.
[0005] The projection line L of the pull rope of the left pull rope sensor on the railway screening vehicle body is perpendicular to the end face of the measuring probe of the left distance sensor, the plate face of the left distance sensor is parallel to the end face of the measuring probe of the left distance sensor, the center line of the outlet of the left pull rope sensor is coincident with the projection line L, and the center line of the mounting hole is perpendicular to the projection line L.
[0006] The end face of the measuring probe is flush with the mounting hole.
[0007] The free end of the pull rope of the left pull rope sensor is fixed at the center position of the upper surface of the left distance sensor.
[0008] The left distance sensor is a laser or ultrasonic sensor.
[0009] The left distance sensor is a laser or ultrasonic sensor.
[0010] The right measuring mechanism comprises a right pull rope sensor, a right distance sensor, a right distance sensor mounting plate and a right distance sensor.
[0011] When working, the left pull rope sensor 1 measures the length of the pull rope in real time as , the left distance sensor measures the distance from the left digging mechanism to the left distance sensor mounting plate in real time as , and the left digging depth is calculated according to the Pythagorean theorem as .
[0012] The right pull rope sensor measures the length of the pull rope in real time as , the right distance sensor measures the distance from the right digging mechanism to the right distance sensor mounting plate in real time as , and the right digging depth is calculated according to the Pythagorean theorem as .
[0013] The total digging width of the left and right digging mechanisms is .
[0014] The installation involves welding and bolting.
[0015] The two side excavating mechanisms each use a measuring rope sensor for measuring the length of the rope and a non-contact distance measuring sensor, such as a laser or ultrasonic sensor, for measuring the distance. The sensors are installed on the vehicle body, and the side-by-side rope sensor and distance measuring sensor are vertically installed. The free end of the rope sensor is fixed to a certain position on the excavating mechanism, and the rope and the vehicle body are perpendicular along the line direction. Therefore, the distance between the excavating mechanism and the fixed point on the vehicle body can be measured by the rope sensor, and the lateral movement distance of the excavating mechanism relative to the vehicle body can be measured by the laser or ultrasonic distance measuring sensor. According to the trigonometric function formula, the depth of the fixed point on the excavating mechanism relative to the fixed point on the vehicle body in the vertical direction can be calculated, and the distance between the two fixed points on the left and right excavating mechanisms in the horizontal direction can also be calculated. The size of the lateral drainage slope is calculated and adjusted according to the measured excavation depth and width values. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 is a sensor installation schematic diagram
[0017] Fig. 2 is a measurement system schematic diagram.
[0018] Fig. 3 is a measurement system calculation schematic diagram.
[0019] In the figure, 1 is a left side rope sensor, 2 is a left side distance measuring sensor installation plate, 3 is a left side distance measuring sensor, 4 is a right side rope sensor, 5 is a right side distance measuring sensor installation plate, 6 is a right side distance measuring sensor, 7 is a left side excavating mechanism, and 8 is a right side excavating mechanism. DETAILED DESCRIPTION
[0020] Figs. 1-3 In the figure, the two side excavating mechanisms of the railway screening machine each use a rope sensor for measuring the distance and a non-contact distance measuring sensor for measuring the lateral distance of the excavating mechanism relative to the vehicle body. The rope sensor and the distance measuring sensor are vertically installed on the vehicle body. The distance between the excavating mechanism and the fixed point on the vehicle body can be measured by the rope sensor, and the lateral distance between the excavating mechanism and the vehicle body can be measured by the non-contact distance measuring sensor. The excavation depth of the excavating mechanism in the vertical direction can be calculated according to the trigonometric function formula, and the distance between the excavating mechanism and the vehicle body in the horizontal direction can be calculated by adding the distance between the two side non-contact sensors and the distance measured by the two sensors.
[0021] The left side pull rope sensor 1 and the left side distance sensor mounting plate 3 are installed on the left side of the railway screening vehicle body, the left side pull rope sensor 1 and the left side distance sensor mounting plate 3 are vertically installed on the vehicle body, the left side distance sensor 4 is fixed in the mounting hole of the left side distance sensor mounting plate 3, and the wire outlet of the left side pull rope sensor 1 is in a vertical line with the left side distance sensor 4. The left side distance sensing plate 2 is installed on the left side digging mechanism 9, and the actual size is determined according to the need of the on-site digging depth. The installation can be achieved by welding, bolting and other feasible ways. The projection line L of the pull rope of the left side pull rope sensor 1 on the railway screening vehicle body is perpendicular to the end face of the measuring probe of the left side distance sensor 4, the plate face of the left side distance sensing plate 2 is parallel to the end face of the measuring probe of the left side distance sensor 4, the center line of the wire outlet of the left side pull rope sensor 1 coincides with the projection line L, and the center line of the mounting hole is perpendicular to the projection line L.
[0022] The right side pull rope sensor 5 and the right side distance sensor mounting plate 7 are installed on the right side of the railway screening vehicle body, the right side pull rope sensor 5 and the right side distance sensor mounting plate 7 are vertically installed on the vehicle body, the right side distance sensor 8 is fixed in the mounting hole of the right side distance sensor mounting plate 7, and the wire outlet of the right side pull rope sensor 5 is in a vertical line with the right side distance sensor 8. The right side distance sensing plate 6 is installed on the right side digging mechanism 10, and the actual size is determined according to the need of the on-site digging depth. The installation can be achieved by welding, bolting and other feasible ways.
[0023] The left side pull rope sensor 1 measures the length of the pull rope in real time , the left side distance sensor 4 measures the distance from the left side digging mechanism to the left side distance sensor mounting plate 3 in real time , and the left side digging depth can be calculated according to the Pythagorean theorem .
[0024] The right side pull rope sensor 5 measures the length of the pull rope in real time , the right side distance sensor 8 measures the distance from the right side digging mechanism to the right side distance sensor mounting plate 7 in real time , and the left side digging depth can be calculated according to the Pythagorean theorem .
[0025] The total digging width of the left and right side digging mechanisms is .
[0026] Taking the drainage slope of 1:30 required at the bottom of the track bed as an example, the left side digging depth is , the right side digging depth is , the digging width is , and the digging width = 3000 mm, the right side digging depth and side digging depth height difference of 100 mm needs to be adjusted.
Claims
1. A screen cleaner digging real-time measuring device, characterized by: The left measuring mechanism comprises a left side rope sensor (1) mounted on the left side of the railway screening vehicle body, a left side distance sensor (4), a left side distance sensor mounting plate (3) mounted on the railway screening vehicle body below the left side rope sensor (1), and a left side distance sensor (4) fixed in the mounting hole of the left side distance sensor mounting plate (3). The left measuring mechanism further comprises a left side distance sensing plate (2) mounted on the left side digging mechanism (9), and the free end of the rope of the left side rope sensor (1) is fixed on the left side distance sensing plate (2). The left side distance sensing plate (2) is arranged opposite to the left side distance sensor (4). The right measuring mechanism has the same structure as the left measuring mechanism.
2. The screen cleaner digging real-time measuring device of claim 1, wherein: The projection line L of the rope of the left side rope sensor (1) on the railway screening vehicle body is perpendicular to the end face of the measuring probe of the left side distance sensor (4), the plate face of the left side distance sensing plate (2) is parallel to the end face of the measuring probe of the left side distance sensor (4), the center line of the outlet of the left side rope sensor (1) coincides with the projection line L, and the center line of the mounting hole is perpendicular to the projection line L.
3. The screen cleaner digging real-time measuring device of claim 1, wherein: The end face of the measuring probe is flush with the mounting hole.
4. The screen cleaner digging real-time measuring device of claim 1, wherein: The free end of the rope of the left side rope sensor (1) is fixed on the center position of the upper surface of the left side distance sensing plate (2).
5. The screen cleaner digging real-time measuring device of claim 1, wherein: The left side distance sensor (4) is a laser or ultrasonic sensor.
6. The screen cleaner digging real-time measuring device of claim 1, wherein: The left side distance sensing plate (2) is a rectangular plate with a height of 200-300 mm and a width of 150-250 mm.
7. The screen cleaner digging real-time measuring device of claim 1, wherein: The right measuring mechanism comprises a right side rope sensor (5), a right side distance sensor (8), a right side distance sensor mounting plate (7), and a right side distance sensing plate (6).
8. The screen cleaner digging real-time measuring device of claim 7, wherein: In operation, the left side pull rope sensor (1) measures the length of the pull rope in real time , the left side distance measuring sensor (4) measures the distance from the left side excavating mechanism to the left side distance measuring sensor mounting plate (3) in real time , and the left side excavating depth is calculated according to the Pythagorean theorem . The right side pull rope sensor (5) measures the length of the pull rope in real time as , the right side distance measuring sensor (8) measures the distance from the right side excavating mechanism to the right side distance measuring sensor mounting plate (7) in real time as , and the right side excavating depth is calculated according to the Pythagorean theorem as ; The total digging width of the left and right digging mechanisms is .
9. The screen cleaner digging real-time measuring device of claim 1, wherein: The installation is achieved by welding or bolting.