CN219706974U - A limit measurement dolly for PRT circuit - Google Patents
A limit measurement dolly for PRT circuit Download PDFInfo
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- CN219706974U CN219706974U CN202320641837.9U CN202320641837U CN219706974U CN 219706974 U CN219706974 U CN 219706974U CN 202320641837 U CN202320641837 U CN 202320641837U CN 219706974 U CN219706974 U CN 219706974U
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- 238000005259 measurement Methods 0.000 title claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 230000005483 Hooke's law Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a limit measuring trolley for a PRT line, which comprises a trolley body, wherein the trolley body can move along the PRT line, four corners of the trolley body are respectively provided with a spring, the ends of the springs are connected with guide rollers, the extending and contracting directions of the springs face to the curbstone of the PRT line, at least two pairs of laser ranging sensors are arranged on the central axis of the trolley body, each pair of laser ranging sensors comprises two curbstone facing to two sides respectively, the laser ranging sensors are arranged at intervals along the direction of the PRT line, the width of the trolley body in a natural state of the springs is larger than the maximum width of the PRT line, and the guide rollers can act on the inner wall of the curbstone. According to the utility model, the vehicle body is corrected to be parallel to the gesture of the line direction by arranging the spring and the guide roller, so that the laser ranging sensor can acquire accurate line width measurement data, and thus the matching degree of the line width and the PRT vehicle is accurately checked.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to a limit measurement trolley for a PRT line.
Background
The PRT (Personal Rapid Transit ) system particularly relates to an automatic small-traffic system consisting of small vehicles and exclusive road rights thereof. PRT is commonly used as a passenger transportation line between airports and wharfs, a transportation line between a large city and a satellite city, and also can be used as a transportation trunk line of a sightseeing tour of urban landscapes. The PRT vehicle adopts an unmanned system, and each vehicle can carry 4-6 persons, so as to provide point-to-point private traffic service for passengers.
The PRT vehicles are intensively dispatched by a central control system, and the distance between the vehicles and the curbstone at two sides of the line is detected by a laser sensor, so that the transverse position and the angle of the vehicles in the line are obtained, and the vehicles are guided to automatically drive. The automatic driving navigation of the PRT vehicle depends on laser detection of curbstone at two sides of the line, so the construction precision requirement of the PRT line is extremely high, and the automatic driving navigation comprises the following steps: curbstone on both sides of the line and roadside equipment must not invade the vehicle confines; the width of the lane of the curve section of the line, namely the relative distance between the curbstone at two sides, meets the widening requirement of the design. The lane width in the curve section boundary, the potential vehicle moving area and the vehicle building boundary are increased by a fixed deviation amount N (i) on the straight line section boundary, and the fixed deviation amount is the lane width widening value of the curve section.
In general, after the construction of the PRT vehicle line is completed, the work load is large by manually checking the line width, and it is difficult to confirm whether the line is matched with the PRT vehicle.
Disclosure of Invention
The utility model aims at: aiming at the problems that after the construction of the PRT vehicle line in the prior art is finished, the line width is checked manually, the workload is large, and whether the line is matched with the PRT vehicle or not is difficult to confirm, the limit measuring trolley for the PRT line is provided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a limit measurement trolley for PRT circuit, includes the automobile body, the automobile body can follow PRT circuit and remove, the four corners of automobile body is equipped with a spring respectively, the end connection of spring has guide roller, the flexible direction of spring is towards the curbstone of PRT circuit, be equipped with two at least pairs of laser rangefinder sensors on the axis of automobile body, every pair laser rangefinder sensors includes two, and respectively towards both sides the curbstone, laser rangefinder sensors follows PRT circuit direction interval setting, the spring under the natural state the automobile body width is greater than the maximum width of PRT circuit, guide roller can act on the curbstone inner wall.
According to the limit measurement trolley for the PRT line, the springs and the guide rollers are arranged, the trolley body is guided along the curb stone, the width of the trolley body in a natural state of the springs is larger than the maximum width of the PRT line, so that the trolley body is ensured to be pressed at any position of the line, the trolley body is kept to walk parallel to the line direction in the traveling process of the trolley body, the compression amount of the springs is in a proportional relation with the compression amount according to Hooke's law, when the trolley body is inclined, the compression amount of the springs closer to the curb stone is relatively larger, so that the compression amount of the springs is larger, the whole trolley body is subjected to a moment opposite to the inclination direction, the trolley body is corrected to an attitude parallel to the line direction, and the laser ranging sensor can acquire accurate line width measurement data, so that the matching degree of the line width and the PRT vehicle can be accurately checked.
As a preferable technical scheme of the utility model, the vehicle body is provided with at least three wheels.
As a further preferable technical scheme of the utility model, four wheels are arranged on the vehicle body, the front two wheels are directional wheels, and the rear two wheels are universal wheels.
By adopting the structure, the effect of longitudinal self-stabilization in the advancing process of the vehicle body can be achieved.
As a further preferable technical scheme of the utility model, the vehicle body is provided with a first driving motor, a second driving motor and a rechargeable battery, the rechargeable battery is respectively connected with the first driving motor and the second driving motor, the first driving motor is used for connecting and driving the directional wheel to rotate, and the second driving motor is used for connecting and driving the universal wheel to turn.
As a preferable embodiment of the present utility model, the vehicle body is an aluminum alloy member.
As a preferable technical scheme of the utility model, at least one spring is arranged between two corners of each side of the vehicle body, and the end part of the spring is connected with the guide roller.
With this structure, the stability of the body over-bending can be improved by providing more springs and guide rollers.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
according to the limit measurement trolley for the PRT line, the springs and the guide rollers are arranged, the trolley body is guided along the curbstone, the width of the trolley body in a natural state of the springs is larger than the maximum width of the PRT line, so that the trolley body is ensured to be pressed at any position of the line, the trolley body is kept to walk parallel to the line direction in the advancing process, the compression amount of the springs is in a proportional relation with the compression amount according to Hooke's law, the compression amount of the springs which are closer to the curbstone is relatively larger when the trolley body is inclined, so that the compression amount of the springs is subjected to larger pressure, the trolley body is subjected to moment opposite to the inclination direction, the trolley body is corrected to be parallel to the posture of the line direction, the laser ranging sensor can acquire accurate line width measurement data, the matching degree of the line width and the PRT vehicle is accurately checked, the limit measurement trolley can automatically run and measure along the line, and has simple structure, convenient use and good effect and high working efficiency.
Drawings
FIG. 1 is a schematic front view of a limit measurement trolley;
FIG. 2 is a schematic left-hand view of a limit measurement trolley;
FIG. 3 is a schematic top view of a boundary-measuring trolley;
FIG. 4 is a schematic front view of a limit measurement trolley traveling normally in a line
FIG. 5 is a schematic top view of a boundary-defined measurement trolley traveling normally in a line;
fig. 6 is a schematic top view of the limit measurement trolley posture self-correction.
The marks in the figure: 1-car body, 2-wheels, 3-guide rollers, 4-springs, 5-laser ranging sensors and 6-curbstone.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1 to 6, a limit measurement trolley for a PRT line according to the present utility model includes a vehicle body 1, wherein at least three wheels 2 are provided on the vehicle body 1, and the vehicle body 1 is capable of moving along the PRT line.
In this embodiment, the function of the vehicle body 1 is to bear various components, which is a rigid structure for limiting the measuring trolley, specifically, the vehicle body 1 is an aluminum alloy member, as shown in fig. 3, 5 and 6, four wheels 2 are symmetrically arranged on the vehicle body 1, the front two wheels 2 are directional wheels, and the rear two wheels 2 are universal wheels, and by adopting this structure, the effect of longitudinal self-stabilization in the running process of the vehicle body 1 can be achieved; the vehicle body 1 is provided with a first driving motor, a second driving motor and a rechargeable battery, the rechargeable battery is respectively connected with the first driving motor and the second driving motor, the first driving motor is used for being connected with and driving the directional wheel to rotate, and the second driving motor is used for being connected with and driving the universal wheel to steer.
As shown in fig. 3, 5 and 6, four corners of the vehicle body 1 are respectively provided with a spring 4, the end parts of the springs 4 are connected with guide rollers 3, the expansion and contraction directions of the springs 4 face the curbstone 6 of the PRT line, the width of the vehicle body 1 in a natural state of the springs 4 is larger than the maximum width of the PRT line, and the guide rollers 3 can act on the inner wall of the curbstone 6.
As shown in fig. 1, 3 to 6, at least two pairs of laser ranging sensors 5 are disposed on a central axis of the vehicle body 1, each pair of laser ranging sensors 5 includes two and faces the curb stone 6 on two sides respectively, and the laser ranging sensors 5 are disposed at intervals along a PRT line direction.
The laser ranging sensor 5 adopts a PRT vehicle same type sensor, and obtains laser data close to PRT vehicle detection in a similar arrangement mode with the PRT vehicle, so that the matching degree of the inspection line width data and the PRT vehicle is improved.
In a specific embodiment, at least one spring 4 is further arranged between two corners of each side of the vehicle body 1, and the end part of the spring 4 is connected with the guide roller 3; with this structure, the stability of the excessive bending of the vehicle body 1 can be improved by providing more springs 4 and guide rollers 3.
In the actual operation process, the vehicle body 1 is inclined relative to the line direction due to uneven pavement, uneven curbstone 6 or uneven push-pull angle, so that accurate line width data cannot be obtained; according to the limit measurement trolley for the PRT line, the spring 4 and the guide roller 3 are arranged, the vehicle body 1 is guided along the road edge stone 6, the width of the vehicle body 1 in a natural state of the spring 4 is larger than the maximum width of the PRT line, so that the spring 4 is pressed at any position of the vehicle body 1, the vehicle body 1 is kept to walk parallel to the line direction in the traveling process, the pressure born by the spring 4 is in a proportional relation with the compression amount according to Hooke's law, the compression amount of the spring 4 which is closer to the road edge stone 6 is relatively larger when the posture of the vehicle body 1 is inclined, so that the whole vehicle body 1 is subjected to moment opposite to the inclination direction, the vehicle body 1 is in a posture parallel to the line direction, the laser ranging sensor 5 can acquire accurate line width measurement data, the matching degree of the line width and the PRT vehicle can be accurately checked, the limit measurement trolley can automatically run along the line, the structure is simple, the use effect is good, and the work effect is convenient.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. The utility model provides a limit measurement trolley for PRT circuit, includes automobile body (1), its characterized in that, automobile body (1) can follow PRT circuit and remove, the four corners of automobile body (1) is equipped with a spring (4) respectively, the end connection of spring (4) has guide roller (3), the flexible direction of spring (4) is towards curbstone (6) of PRT circuit, be equipped with at least two pairs of laser rangefinder sensors (5) on the axis of automobile body (1), every pair laser rangefinder sensors (5) include two, and respectively towards both sides curbstone (6), laser rangefinder sensors (5) set up along PRT circuit direction interval, spring (4) under the natural state automobile body (1) width is greater than the maximum width of PRT circuit, guide roller (3) can act on curbstone (6) inner wall.
2. The limit measurement trolley for PRT lines according to claim 1, characterized in that at least three wheels (2) are provided on the vehicle body (1).
3. The limit measurement trolley for PRT lines according to claim 2, characterized in that four wheels (2) are provided on the body (1), the front two wheels (2) being directional wheels and the rear two wheels (2) being universal wheels.
4. A limit measurement trolley for PRT lines according to claim 3, characterized in that the vehicle body (1) is provided with a first drive motor, a second drive motor and a rechargeable battery, the rechargeable battery is respectively connected with the first drive motor and the second drive motor, the first drive motor is used for connecting and driving the directional wheel to rotate, and the second drive motor is used for connecting and driving the universal wheel to turn.
5. The limit measurement trolley for PRT lines according to claim 1, characterized in that the body (1) is an aluminium alloy member.
6. The limit measurement trolley for PRT lines according to any one of claims 1 to 5, characterized in that at least one spring (4) is further provided between the two corners of each side of the body (1), the ends of the spring (4) being connected to the guide rollers (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320641837.9U CN219706974U (en) | 2023-03-28 | 2023-03-28 | A limit measurement dolly for PRT circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320641837.9U CN219706974U (en) | 2023-03-28 | 2023-03-28 | A limit measurement dolly for PRT circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219706974U true CN219706974U (en) | 2023-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320641837.9U Active CN219706974U (en) | 2023-03-28 | 2023-03-28 | A limit measurement dolly for PRT circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219706974U (en) |
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2023
- 2023-03-28 CN CN202320641837.9U patent/CN219706974U/en active Active
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