Rail detection early warning device for rail transit

Abstract

The utility model relates to the technical field of rail transit, and discloses a rail detection early warning device for rail transit, which comprises a bottom plate, a double-end motor is mounted at the top end of the bottom plate, two bearing seats are oppositely arranged at the top ends of the bottom plate at two ends of the double-end motor, and driving shafts are mounted at two ends of the double-end motor. The driving wheel rolls on the rail surface to drive the whole device to advance, and the movable plate drives the cleaning brush to reciprocate leftwards and rightwards by combining the action of the left-right reciprocating mechanism and utilizing the guide action of the guide groove on the linkage rod; therefore, the cleaning effect on the rail surface is achieved, impurities such as soil are prevented from being attached to the rail surface, the rolling smoothness between the left driving wheel and the rail surface and between the right driving wheel and the rail surface is guaranteed, the fitness between the guide rail surface defect detector and the rail is guaranteed, and the detection and early warning effect on the rail is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a track detection and early warning device for rail transportation. Background Art

[0002] Rail transit refers to a type of transportation tool or transportation system in which operating vehicles need to travel on specific tracks. Common rail transit includes traditional railways, subways, light rails and trams. In railway tracks, it is necessary to regularly use the rail surface defect detection system to photograph and inspect the rail surface in order to provide early warning of damaged rail surfaces and then repair and replace them in time.

[0003] Chinese patent authorization announcement number CN220243220U discloses a track detection device for rail transit, including a mobile frame, a mounting plate is fixedly provided at the middle of the upper end of the mobile frame, a driving structure is provided at the upper end of the mounting plate, and the driving structure includes a dual-axis motor, which can realize automatic movement while cleaning the side of the track, to ensure that when the camera equipment is shooting, there will be no unclear shooting due to mud adhering to the track. The above-mentioned prior art scheme has the following shortcomings: the device mainly realizes the horizontal movement of the camera equipment by the rolling of the moving wheels on the track surface, so as to detect and warn the track, but in this structure, only the side of the track is cleaned by the disc brush, and the track surface is not cleaned. When an object appears on the track surface to form a height difference on both sides, the moving wheels on both sides will get stuck with the track, thereby affecting the detection, so there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a track detection and early warning device for rail transit, so as to solve the problem that the existing track detection and early warning device for rail transit mentioned in the above background technology is not easy to ensure the smoothness of the forward movement of the device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a track detection and early warning device for rail transit, comprising a base plate, a double-headed motor is installed on the top of the base plate, and two bearing seats are relatively arranged on the top of the base plate at both ends of the double-headed motor, and driving shafts are installed on both ends of the double-headed motor, and one end of the driving shaft passes through the interior of the bearing seat and is installed with a driving wheel, two first support plates are relatively arranged on both sides of the top of the base plate, and the tops of the two first support plates are connected to a first fixed plate, limiting holes are provided at both ends of the first fixed plate, and a movable plate is passed through the interior of the limiting hole, and a left and right reciprocating movable plate is connected between one side of the movable plate and one side of the driving wheel. Mechanism, balls are evenly embedded on the other side of the movable plate, and a limiting guide groove is provided on the inner wall of the limiting hole on one side of the ball, the outer side of the ball is abutted against the inner side of the limiting guide groove, a cleaning brush is installed at the bottom end of the movable plate, and the bottom end of the cleaning brush is abutted against the rail surface, a connecting plate is installed at the bottom end of the bearing seat close to the driving wheel, and a limiting mechanism is arranged on the outer side of the connecting plate, two second support plates are installed oppositely on the side of the top of the bottom plate away from the first support plate, and the top ends of the two first support plates are connected to the second fixed plate, guide rail surface defect detectors are arranged on both sides of the bottom end of the second fixed plate, and the bottom ends of the guide rail surface defect detectors are abutted against the track.

[0006] Preferably, the length of the movable plate is smaller than the length of the limiting hole, the movable plate moves left and right along the inside of the limiting hole, and the position of the limiting hole corresponds to the front and rear position of the driving wheel.

[0007] Preferably, the left and right reciprocating mechanism includes a guide hole opened on the side of the limiting hole close to the driving wheel, and a linkage rod passes through the inside of the guide hole, one end of the linkage rod is connected to one side of the movable plate, and a guide groove is opened on the outer side of the driving wheel at the other end of the linkage rod, and one end of the linkage rod extends to the inside of the guide groove.

[0008] Preferably, the linkage rod is located on the center line of the movable plate, and the movable plate forms a left-right sliding structure through the cooperation of the linkage rod and the guide hole.

[0009] Preferably, the guide groove is an annular groove, and the annular structure is distributed on the driving wheel in an inclined manner, so that the driving wheel rotates to drive the linkage rod to move horizontally back and forth left and right.

[0010] Preferably, the limiting mechanism includes two sliding holes opened on the connecting plate, and the interiors of the two sliding holes are penetrated by I-shaped pieces, the bottom ends of the I-shaped pieces are installed with L-shaped top rods, the top ends of the two I-shaped pieces are connected to movable blocks, the side close to the movable block is installed with a spring, and one end of the spring is connected to one side of the bearing seat.

[0011] Preferably, the spring is in a compressed state, and the bottom end of the L-shaped top rod abuts against the groove on the side of the track to promote the abutment between the driving wheel and the track surface.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The entire device is driven forward by the rolling of the driving wheel on the rail surface, and combined with the function of the left and right reciprocating mechanism, the guide groove guides the linkage rod, so that the movable plate drives the cleaning brush to move back and forth left and right. Since the friction direction between the cleaning brush and the rail surface is perpendicular to the forward direction of the device, the rail surface is cleaned to prevent dirt and other impurities from adhering to the rail surface, and the rolling smoothness between the left and right driving wheels and the rail surface is ensured, so as to ensure the fit between the guide rail surface defect detector and the rail, and ensure its detection and early warning effect on the rail;

[0014] (2) The elastic action of the spring is used to push the movable block outward, so that the L-shaped top rod fits into the groove on the side of the track. The special structure of the track is used to further limit the driving wheel to prevent the driving wheel from vibrating up and down, thereby further improving the fit between the driving wheel and the track surface and improving the smoothness of its movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the left and right reciprocating mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of ball distribution of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the utility model.

[0020] Explanation of the reference numerals in the figure: 1. Base plate; 2. Double-headed motor; 3. Bearing seat; 4. Driving wheel; 5. Driving shaft; 6. Left and right reciprocating mechanism; 601. Guide hole; 602. Linkage rod; 603. Guide groove; 7. First fixed plate; 8. Limiting hole; 9. Movable plate; 10. Second fixed plate; 11. Guide rail surface defect detector; 12. First support plate; 13. Second support plate; 14. Ball bearing; 15. Limiting guide groove; 16. Connecting plate; 17. Limiting mechanism; 1701. Sliding hole; 1702. I-shaped piece; 1703. Movable block; 1704. Spring; 1705. L-shaped push rod; 18. Cleaning brush. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 , the utility model provides an embodiment: a track detection and early warning device for rail transit, comprising a bottom plate 1, a double-headed motor 2 is installed on the top of the bottom plate 1, and two bearing seats 3 are relatively arranged on the top of the bottom plate 1 at both ends of the double-headed motor 2, and driving shafts 5 are installed on both ends of the double-headed motor 2, and one end of the driving shaft 5 passes through the interior of the bearing seat 3 and is installed with a driving wheel 4, two first support plates 12 are relatively arranged on both sides of the top of the bottom plate 1, and the tops of the two first support plates 12 are connected to the first fixing plate 7, and the two ends of the first fixing plate 7 are provided with limiting holes 8, and the inside of the limiting hole 8 is penetrated by a movable plate 9;

[0023] The length of the movable plate 9 is smaller than the length of the limiting hole 8, and the movable plate 9 moves left and right along the inside of the limiting hole 8. The position of the limiting hole 8 corresponds to the front and rear position of the driving wheel 4.

[0024] Specifically, Figure 1 , Figure 3 As shown, when in use, the limiting guide groove 15 and the left and right of the ball 14 are used to limit the movable plate 9 in the limiting hole 8, so that the movable plate 9 can move horizontally in the limiting hole 8, so as to achieve the friction cleaning effect of the subsequent cleaning brush 18 on the rail surface;

[0025] A left-right reciprocating mechanism 6 is connected between one side of the movable plate 9 and one side of the driving wheel 4;

[0026] The left-right reciprocating mechanism 6 includes a guide hole 601 opened on the side of the limiting hole 8 close to the driving wheel 4, and a linkage rod 602 runs through the inside of the guide hole 601, one end of the linkage rod 602 is connected to one side of the movable plate 9, and a guide groove 603 is opened on the outside of the driving wheel 4 at the other end of the linkage rod 602, and one end of the linkage rod 602 extends to the inside of the guide groove 603;

[0027] The linkage rod 602 is located on the center line of the movable plate 9, and the movable plate 9 forms a left-right sliding structure through the cooperation of the linkage rod 602 and the guide hole 601;

[0028] The guide groove 603 is an annular groove, and the annular structure is distributed in an inclined shape on the driving wheel 4, so that the driving wheel 4 rotates to drive the linkage rod 602 to move horizontally back and forth;

[0029] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, when in use, the guide hole 601 is used to limit the moving direction and moving distance of the linkage rod 602, and then the rotation of the driving wheel 4 is combined with the guiding effect of the guide groove 603 to achieve the left and right reciprocating movement of the movable plate 9;

[0030] The other side of the movable plate 9 is evenly embedded with balls 14, and the inner wall of the limiting hole 8 on one side of the ball 14 is provided with a limiting guide groove 15, the outer side of the ball 14 is against the inner side of the limiting guide groove 15, a cleaning brush 18 is installed at the bottom end of the movable plate 9, and the bottom end of the cleaning brush 18 is against the rail surface, and the bottom end of the bearing seat 3 close to the driving wheel 4 is installed with a connecting plate 16, and the outer side of the connecting plate 16 is provided with a limiting mechanism 17;

[0031] The limiting mechanism 17 includes two sliding holes 1701 opened on the connecting plate 16, and the interiors of the two sliding holes 1701 are penetrated by I-shaped pieces 1702, and the bottom ends of the I-shaped pieces 1702 are installed with L-shaped top rods 1705, and the top ends of the two I-shaped pieces 1702 are connected to the movable block 1703, and the side close to the movable block 1703 is installed with a spring 1704, and one end of the spring 1704 is connected to one side of the bearing seat 3;

[0032] The spring 1704 is in a compressed state, and the bottom end of the L-shaped top rod 1705 abuts against the groove on the side of the track to promote the driving wheel 4 to abut against the track surface;

[0033] Two second support plates 13 are installed on the side of the top of the bottom plate 1 away from the first support plate 12, and the tops of the two first support plates 12 are connected to the second fixing plate 10. Both sides of the bottom of the second fixing plate 10 are provided with guide rail surface defect detectors 11, and the bottom ends of the guide rail surface defect detectors 11 are against the track;

[0034] Specifically, Figure 1 , Figure 4 As shown, when in use, the elasticity of the spring 1704 causes the L-shaped push rod 1705 to squeeze the inner groove of the track, and the structural characteristics of the track are used to achieve the upper and lower limits of the driving wheel 4, thereby further ensuring the rolling stability of the driving wheel 4 on the track surface.

[0035] Working principle: When the utility model is in use, firstly, the movable blocks 1703 on both sides are pulled inwards to place the device above the track, so that the driving wheel 4 fits with the end surface of the track, and then the spring 1704 is released. Under the action of elasticity, the movable block 1703 is pushed to move outwards, and then the I-shaped piece 1702 slides along the sliding hole 1701 to drive the L-shaped top rod 1705 to insert into the groove on the inner side of the track, so as to achieve the upper and lower limit effect of the driving wheel 4, improve the upper and lower fit between the driving wheel 4 and the cabinet surface, reduce slippage, and thus improve the smoothness of the movement of the device;

[0036] Secondly, the double-headed motor 2 is started to make the driving shaft 5 drive the driving wheel 4 to rotate, so that the driving wheel 4 rolls along the end surface of the track to drive the device forward, and the guide rail surface defect detector 11 is started synchronously to use the visual processing system to detect and warn the track surface defects to ensure the maintenance and repair of the track;

[0037] Finally, during the forward movement of the driving wheel 4, the guide groove 603 is rotated synchronously. Since one end of the linkage rod 602 is always located inside the guide groove 603, and the linkage rod 602 is restricted by the movable plate 9 and the guide hole 601, it can only move left and right. Due to the special structure of the guide groove 603, the linkage rod 602 is driven to slide back and forth left and right, so that the movable plate 9 moves synchronously, thereby driving the cleaning brush 18 to sweep the end surface of the track left and right to achieve the cleaning purpose, thereby ensuring the stability of the forward movement of the two driving wheels 4.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A track detection and early warning device for rail transit, comprising a base plate (1), characterized in that: A double-headed motor (2) is installed at the top of the bottom plate (1), and two bearing seats (3) are relatively arranged at the top of the bottom plate (1) at both ends of the double-headed motor (2). A driving shaft (5) is installed at both ends of the double-headed motor (2), and one end of the driving shaft (5) passes through the interior of the bearing seat (3) and is installed with a driving wheel (4). Two first support plates (12) are relatively arranged on both sides of the top of the bottom plate (1), and the tops of the two first support plates (12) are connected to the first fixed plate (7). Limiting holes (8) are provided at both ends of the first fixed plate (7), and a movable plate (9) passes through the interior of the limiting hole (8). A left and right reciprocating mechanism (6) is connected between one side of the movable plate (9) and one side of the driving wheel (4). Balls (14) are evenly embedded on the other side of the movable plate (9), and the balls (14) are arranged on the other side of the movable plate (9). ) is provided with a limiting guide groove (15) on the inner wall of the limiting hole (8) on one side, the outer side of the ball (14) abuts against the inner side of the limiting guide groove (15), a cleaning brush (18) is installed at the bottom end of the movable plate (9), and the bottom end of the cleaning brush (18) abuts against the rail surface, a connecting plate (16) is installed at the bottom end of the bearing seat (3) close to the driving wheel (4), and a limiting mechanism (17) is arranged on the outer side of the connecting plate (16), two second support plates (13) are arranged opposite to each other on the side of the top end of the bottom plate (1) away from the first support plate (12), and the top ends of the two first support plates (12) are connected to the second fixed plate (10), and guide rail surface defect detectors (11) are arranged on both sides of the bottom end of the second fixed plate (10), and the bottom ends of the guide rail surface defect detectors (11) abut against the track.

2. A track detection and early warning device for rail transit according to claim 1, characterized in that: The length of the movable plate (9) is smaller than the length of the limiting hole (8), and the movable plate (9) moves left and right along the inside of the limiting hole (8). The position of the limiting hole (8) corresponds to the front and rear position of the driving wheel (4).

3. A track detection and early warning device for rail transit according to claim 1, characterized in that: The left-right reciprocating mechanism (6) comprises a guide hole (601) provided on the side of the limiting hole (8) close to the driving wheel (4), and a linkage rod (602) passes through the inside of the guide hole (601), one end of the linkage rod (602) is connected to one side of the movable plate (9), and a guide groove (603) is provided on the outside of the driving wheel (4) at the other end of the linkage rod (602), and one end of the linkage rod (602) extends to the inside of the guide groove (603).

4. A track detection and early warning device for rail transit according to claim 3, characterized in that: The linkage rod (602) is located on the center line of the movable plate (9), and the movable plate (9) forms a left-right sliding structure through the cooperation of the linkage rod (602) and the guide hole (601).

5. A track detection and early warning device for rail transit according to claim 3, characterized in that: The guide groove (603) is an annular groove, and the annular structure is distributed in an inclined manner on the driving wheel (4), so that the driving wheel (4) rotates to drive the linkage rod (602) to move horizontally back and forth left and right.

6. A track detection and early warning device for rail transit according to claim 1, characterized in that: The limiting mechanism (17) comprises two sliding holes (1701) formed on the connecting plate (16), and the interiors of the two sliding holes (1701) are penetrated by I-shaped pieces (1702), the bottom ends of the I-shaped pieces (1702) are each installed with an L-shaped push rod (1705), the top ends of the two I-shaped pieces (1702) are connected to a movable block (1703), a spring (1704) is installed on the side close to the movable block (1703), and one end of the spring (1704) is connected to one side of the bearing seat (3).

7. A track detection and early warning device for rail transit according to claim 6, characterized in that: The spring (1704) is in a compressed state, and the bottom end of the L-shaped top rod (1705) abuts against the groove on the side of the track to promote the driving wheel (4) to abut against the track surface.

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