Standard gauge coordinate acquisition device

Abstract

A standard gauge coordinate collecting device comprises a base, an elastic piece, a sliding block and a sliding seat, the base and the sliding seat are installed on the lower side of a track measuring vehicle, the sliding block is slidably connected to the inner side of the sliding seat, one end of a supporting rod is connected to one side of the sliding block, the other end of the supporting rod is slidably connected to the base, and the elastic piece is connected between the base and the sliding block. The rolling piece penetrates through the sliding seat, is connected to the lower side of the sliding block and is in rolling connection to the inner side of the track; the lower end of the prism group is connected to the upper side of the sliding block. According to the design, the device is connected with a track detection vehicle, so that synchronous movement measurement can be realized by means of a vehicle body; the rolling piece is connected with the track, and the prism group is placed above the sliding seat and is not contacted with the track, so that the prism group is prevented from being directly contacted with the track to cause abrasion; by arranging the elastic piece, the rolling piece can be continuously and tightly contacted with the track, so that the measurement precision can be improved; and the sliding block and the sliding seat are arranged, and a sliding connection mode is adopted, so that the moving process of the rolling piece and the prism group is more stable.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to a standard gauge coordinate acquisition device. Background Technology

[0002] Currently, rail transit systems commonly use track gauges for track gauge measurement during track construction acceptance and routine maintenance. Existing track gauges typically use linear displacement sensors to measure the rail gauge. However, this method requires the measuring probe to be in close contact with the rail surface being measured. Track gauges, on the other hand, are often measured manually, leading to significant errors in the measurement results. Furthermore, the frequent movement of the sensor probe during use causes excessive wear and reduces the sensor's lifespan. Additionally, during track fine-tuning, because the track inspection vehicle does not measure the three-dimensional coordinates of the standard track gauge at the designated location, the coordinates of the standard track gauge must be calculated from the vehicle's geometric dimensions. Wear or loosening of the vehicle body will affect the accuracy of the calculation, thus impacting the fine-tuning effect. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects and problems of low measurement accuracy and short service life in the existing technology, and to provide a standard gauge coordinate acquisition device with high measurement accuracy and long service life.

[0004] To achieve the above objectives, the technical solution of this utility model is: a standard track gauge coordinate acquisition device, comprising a base, an elastic element, a slider, a slide block, a support rod, a rolling element, and a prism assembly. The base and the slide block are respectively installed on the lower side of a track measuring vehicle. The slider is slidably connected to the inner side of the slide block. One end of the support rod is connected to one side of the slider, and the other end of the support rod is slidably connected to the base. The elastic element is connected between the support rod and the slider. The rolling element passes through the slide block and is connected to the lower side of the slider. The rolling element is slidably connected to the standard track gauge on the inner side of the track. The lower end of the prism assembly passes through the slide block and is connected to the upper side of the slider. The central axis of the prism rod of the prism assembly is located directly above the contact point between the rolling element and the inner track line.

[0005] The prism assembly includes a prism and a prism rod. The lower end of the prism rod is connected to the upper side of the slider. The prism is connected to the upper end of the prism rod. The reflection center of the prism is located directly above the contact point between the rolling element and the inner line of the track. The prism is matched with an automatic total station.

[0006] The slide block is dovetail-shaped, and a groove is provided on the upper side of the slide block along the vertical track direction, with the prism rod located in the groove.

[0007] The slider is dovetail-shaped and is vertically arranged inside the track. The lower side of the slide block has a dovetail groove that matches the slider.

[0008] The rolling element includes a rubber-coated rolling bearing and a connecting rod. The rubber-coated rolling bearing is arranged horizontally and its inner ring is fitted onto the lower end of the connecting rod. The outer ring of the rubber-coated rolling bearing is rolledly connected to the standard gauge section inside the track.

[0009] The support rod includes an inner rod and an outer rod. The outer rod is fixedly connected to the base, and the inner rod is slidably connected inside the outer rod. One end of the inner rod is connected to the slider.

[0010] The base is T-shaped, and a threaded hole is provided on the upper side of the base. A bolt is threaded into the threaded hole and is threaded to the lower side of the track measuring vehicle.

[0011] The base has a mounting groove on its lower side, one end of the outer rod is located in the mounting groove, and a fastening screw is threaded between the two side walls of the mounting groove.

[0012] The elastic element includes a compression spring, which is sleeved on the outside of the inner rod. One end of the compression spring is connected to one side of the slider, and the other end of the compression spring is connected to one end of the outer rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. In this utility model, a standard track gauge coordinate acquisition device connects the device to a track inspection vehicle, enabling synchronous movement and measurement without manual operation. The rolling element connects to the track, while the prism assembly is suspended above the slide block and does not contact the track, thus preventing wear caused by direct contact. The elastic element ensures continuous and close contact between the rolling element and the track, guaranteeing measurement accuracy. The sliding connection between the slider and slide block further stabilizes the rolling element and prism assembly as they move along the track. Therefore, this utility model offers high measurement accuracy and a long service life.

[0015] 2. In this utility model's standard track gauge coordinate acquisition device, the prism assembly uses a prism in conjunction with an automatic total station for tracking measurement. This allows for direct measurement of the continuous three-dimensional coordinates of the track, thus obtaining the overall track alignment changes. Direct comparison with the design values ​​enables fine-tuning of the track without additional calculations, resulting in higher accuracy. Furthermore, the track gauge value can be obtained by inversely calculating the three-dimensional coordinates of the left and right tracks, making it convenient to use. Both the slider and slide block employ a dovetail design, providing high structural stability to ensure measurement accuracy. The tight fit between the groove and tenon allows the connection to withstand significant tensile and compressive forces, effectively preventing loosening and detachment. During installation, simply insert the tenon into the groove and adjust accordingly to achieve a tight connection, making installation and disassembly convenient. Therefore, this utility model boasts high reliability, ease of use, and simple installation and disassembly.

[0016] 3. In this standard gauge coordinate acquisition device, the rolling elements use rubber-coated rolling bearings to contact the track. Because the rubber-coated rolling bearing's internal rubber material has excellent buffering performance and electrical insulation function, it can effectively reduce friction and vibration, lower noise during operation, and improve the comfort and stability of the equipment. The support rod adopts an inner and outer rod design, making its movement more stable. The support rod is installed using mounting slots, facilitating position adjustment. After installation, the tightness of the support rod is adjusted using fastening screws, resulting in good fixation. The base is connected to the track inspection vehicle via a threaded connection, facilitating installation and disassembly. Therefore, this invention offers high stability, ease of use, and convenient installation and disassembly. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the measurement process of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model.

[0019] Figure 3 This is a structural diagram of the base, slider, and support rod in this utility model.

[0020] Figure 4 This is a schematic diagram of the slide block in this utility model.

[0021] In the diagram: 1. Track measuring vehicle; 2. Base; 3. Threaded hole; 31. Mounting groove; 32. Fastening screw; 33. Slide; 4. Slide groove; 41. Dovetail groove; 42. Slider; 5. Prism assembly; 6. Prism; 61. Prism rod; 62. Support rod; 7. Inner rod; 71. Outer rod; 72. Elastic element; 8. Rolling element; 9. Rubber-coated rolling bearing; 91. Connecting rod; 10. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1:

[0024] See Figures 1 to 2 A standard track gauge coordinate acquisition device includes a base 3, an elastic element 8, a slider 5, a slide block 4, a support rod 7, a rolling element 9, and a prism assembly 6. The base 3 and the slide block 4 are respectively installed on the lower side of the track measuring vehicle 2. The slider 5 is slidably connected to the inner side of the slide block 4. One end of the support rod 7 is connected to one side of the slider 5, and the other end of the support rod 7 is slidably connected to the base 3. The elastic element 8 is connected between the base 3 and the slider 5. The rolling element 9 passes through the slide block 4 and is connected to the lower side of the slider 5. The rolling element 9 is slidably connected to the standard track gauge on the inner side of the track 1. The lower end of the prism assembly 6 passes through the slide block 4 and is connected to the upper side of the slider 5. The central axis of the prism rod 62 of the prism assembly 6 is located directly above the contact point between the rolling element 9 and the inner line of the track 1.

[0025] The prism assembly 6 includes a prism 61 and a prism rod 62. The lower end of the prism rod 62 is connected to the upper side of the slider 5. The prism 61 is connected to the upper end of the prism rod 62. The reflection center of the prism 61 is located directly above the contact point between the rolling element 9 and the inner line of the track 1. The prism 61 is matched with the automatic total station.

[0026] In this embodiment, the elastic element 8 is initially in a compressed state. Before measurement, the device is first installed on the lower side of the track measuring vehicle 2. Then, the slider 5 slides in the slide block 5 under the elastic force of the elastic element 8, which drives the rolling element 9 to move and contact the inner side of the track 1. At this time, the prism group 6 is located directly above the contact part between the rolling element 9 and the inner side line of the track 1. Then, the track measuring vehicle 2 starts to move on the track 1. The track gauge value is obtained by obtaining the reading of the prism 61 through the automatic total station.

[0027] Example 2:

[0028] The basic content is the same as in Example 1, except that:

[0029] See Figures 2 to 4 The slide block 4 is dovetail shaped, and a groove 41 is provided on the upper side of the slide block 4 along the direction of the vertical track 1. The prism rod 62 is located in the groove 41.

[0030] The slider 5 is dovetail-shaped and is vertically arranged inside the track 1. The lower side of the slide block 4 is provided with a dovetail groove 42 that matches the slider 5.

[0031] The rolling element 9 includes a rubber-coated rolling bearing 91 and a connecting rod 10. The rubber-coated rolling bearing 91 is arranged horizontally and its inner ring is fitted onto the lower end of the connecting rod 10. The outer ring of the rubber-coated rolling bearing 91 is rolledly connected to the standard gauge section inside the track 1.

[0032] In this embodiment, the rubber material inside the rubber-coated rolling bearing 91 has good buffering performance, which can effectively reduce friction and vibration, reduce noise during operation, and improve the comfort and stability of the equipment. During installation, the slider 5 is aligned with one end of the dovetail groove 42 and then the slider 5 is released. The slider 5 slides laterally in the slide block 4 under the action of the elastic element 8. One end of the slide groove 41 is semi-circular and matches the shape of the prism rod 62.

[0033] Example 3:

[0034] The basic content is the same as in Example 1, except that:

[0035] See Figure 3 The support rod 7 includes an inner rod 71 and an outer rod 72. The outer rod 72 is fixedly connected to the base 3, and the inner rod 71 is slidably connected to the inside of the outer rod 72. One end of the inner rod 71 is connected to the slider 5.

[0036] The base 3 is T-shaped, and a threaded hole 31 is provided on the upper side of the base 3. A bolt is threaded into the threaded hole 31, and the bolt is threaded to the lower side of the track measuring vehicle 2.

[0037] The base 3 has a mounting groove 32 on its lower side, one end of the outer rod 72 is located in the mounting groove 32, and a fastening screw 33 is threaded between the two side walls of the mounting groove 32.

[0038] The elastic element 8 includes a compression spring, which is sleeved on the outside of the inner rod 71. One end of the compression spring is connected to one side of the slider 5, and the other end of the compression spring is connected to one end of the outer rod 72.

[0039] In this embodiment, during installation, the end of the outer rod 72 is first placed into the mounting groove 32, and then the fastening screw 33 is tightened. At the same time, the distance between the inner rod 71 and the outer rod 72 is adjusted. After the adjustment is in place, the compression spring is connected to the outside of the slider 5 and the outer rod 72.

Claims

1. A standard gauge coordinate acquisition device, characterized by: The utility model provides a track measuring vehicle's prism group, including base (3), elastic element (8), sliding block (5), slide (4), support rod (7), rolling element (9) and prism group (6), base (3), slide (4) installs respectively in the downside of track measuring vehicle (2), sliding block (5) is connected in the inside of slide (4) slidingly, one end of support rod (7) is connected in one side of sliding block (5), the other end of support rod (7) is connected in base (3) slidingly, elastic element (8) is connected between support rod (7), sliding block (5), rolling element (9) is connected in the downside of sliding block (5) after passing through slide (4), and rolling element (9) is connected in the standard track pitch of track (1) inside rollingly, the lower end of prism group (6) is connected in the upside of sliding block (5) after passing through slide (4), and the central axis of prism rod (62) of prism group (6) is located just above the line contact part of rolling element (9) and track (1) inside.

2. A standard gauge coordinate acquisition device according to claim 1, characterized in that: Prism group (6) includes prism (61) and prism rod (62), the lower end of prism rod (62) is connected with the upside of sliding block (5), the prism (61) is connected to the upper end of prism rod (62), the reflection center of prism (61) is located just above the line contact part of rolling element (9) and track (1) inside, and the prism (61) is matched with automatic total station.

3. A standard gauge coordinate acquisition device according to claim 2, wherein: The slide (4) is swallow-tailed, and a sliding groove (41) is formed in the upside of the slide (4) along the vertical track (1) direction, and the prism rod (62) is located in the sliding groove (41).

4. A standard gauge coordinate acquisition device according to claim 3, wherein: The sliding block (5) is swallow-tailed, and the sliding block (5) is arranged vertically inside the track (1), and a swallow-tail groove (42) matched with the sliding block (5) is formed in the downside of the slide (4).

5. The standard gauge coordinate acquisition device of claim 1, wherein: The rolling element (9) includes a rubber-coated rolling bearing (91) and a connecting rod (10), the rubber-coated rolling bearing (91) is horizontally arranged, the inner ring of the rubber-coated rolling bearing (91) is sleeved on the lower end of the connecting rod (10), and the outer ring of the rubber-coated rolling bearing (91) is rollingly connected to the standard track pitch inside the track (1).

6. The standard gauge coordinate acquisition device of claim 1, wherein: The support rod (7) includes an inner rod (71) and an outer rod (72), the outer rod (72) is fixedly connected to the base (3), the inner rod (71) is slidingly connected to the inside of the outer rod (72), and one end of the inner rod (71) is connected to the sliding block (5).

7. A standard gauge coordinate acquisition device according to claim 6, wherein: The base (3) is T-shaped, a threaded hole (31) is formed in the upside of the base (3), a bolt is threadedly connected in the threaded hole (31), and the bolt is threadedly connected to the downside of the track measuring vehicle (2).

8. A standard gauge coordinate acquisition device according to claim 7, wherein: A mounting groove (32) is formed in the downside of the base (3), one end of the outer rod (72) is located in the mounting groove (32), and a fastening screw (33) is threadedly connected between the two side walls of the mounting groove (32).

9. A standard gauge coordinate acquisition device according to claim 8, wherein: The elastic member (8) comprises a compression spring sleeved outside the inner rod (71), one end of the compression spring is connected to one side of the sliding block (5), and the other end of the compression spring is connected to one end of the outer rod (72).

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