Rail safe driving device

Abstract

The utility model provides a track safety driving device which comprises a guide rail, brake mechanisms and limiting mechanisms, a wheel is arranged at the top end of the guide rail, the limiting mechanisms are arranged on the two sides of the wheel, the brake mechanisms are arranged at the top end of the wheel, and symmetrical limiting tooth grooves are formed in the two sides of the wheel respectively. The limiting mechanism comprises a limiting block, a limiting rod, a spring and an extrusion plate, one end of the limiting rod is fixedly connected with the limiting block, the outer side of the limiting rod is sleeved with the spring, and when the rotating speed of the wheel is reduced through friction of the brake pad, at the moment, the bottom end of the first extrusion frame makes contact with the extrusion plate and moves towards the inner side of the wheel; when the brake pad breaks down, the brake pad drives the limiting block to be inserted into the limiting tooth groove formed in the wheel, the spring is stretched to extend, the limiting rod slides in the mounting frame, stable sliding is provided, rotation between the wheels is stopped, the rail driving safety is improved, when the brake pad breaks down, the device can be used as a secondary brake device, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit, in particular to a rail safety driving device. Background Art

[0002] Rail transit refers to a class of transportation means or transportation systems in which operating vehicles need to run on specific tracks. The most typical rail transit is the railway system composed of traditional trains and standard railways. With the diversified development of train and railway technologies, rail transit presents more and more types, not only covering long-distance land transportation, but also widely used in medium- and short-distance urban public transportation.

[0003] The existing rail braking devices usually only have friction braking. When the brake pads are damaged, there is no secondary braking mechanism, resulting in easy safety hazards. Therefore, it is necessary to improve a rail safety driving device to solve the above problems. Summary of the Utility Model

[0004] In view of this, the utility model provides a rail safety driving device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the embodiment of the utility model is realized as follows: A rail safety driving device includes a guide rail, a braking mechanism and a limiting mechanism. A wheel is arranged at the top of the guide rail, limiting mechanisms are arranged on both sides of the wheel, a braking mechanism is arranged at the top of the wheel, and symmetrical limiting tooth grooves are respectively formed on both sides of the wheel;

[0006] The limiting mechanism includes a limiting block, a limiting rod, a spring and a pressing plate. One end of the limiting rod is fixedly connected to the limiting block, a spring is sleeved on the outer side of the limiting rod, one end of the spring is fixedly connected to the limiting block, and a pressing plate is fixedly connected to one side of the limiting block.

[0007] Further preferably, the braking mechanism includes a mounting frame, a hydraulic push rod, a first pressing frame, a second pressing frame and a brake pad. Mounting frames are arranged on both sides of the wheel, and symmetrical hydraulic push rods are arranged at the bottom of the mounting frame with the wheel as the center.

[0008] Further preferably, the output end of the hydraulic push rod penetrates through the top of the mounting frame, and a first pressing frame and a second pressing frame are fixedly arranged on one side of the output end of the hydraulic push rod from top to bottom.

[0009] Further preferably, a brake pad is fixedly connected to the inner side of the second pressing frame, and the outer wall of the brake pad is arranged on one side of the wheel.

[0010] Further preferably, a limiting rod is slidably connected to the inner wall of the mounting frame, and one end of the spring is fixedly connected to the inner side of the mounting frame.

[0011] Further preferably, the inner side of the first extrusion frame is slidably connected to the outer wall of the extrusion plate, and the top of the extrusion plate is triangular in shape.

[0012] Due to the adoption of the above technical solutions in the embodiments of the present utility model, it has the following advantages: In the present utility model

[0013] First, when the brake pad reduces the rotational speed of the wheel through friction, at this time, the bottom end of the first extrusion frame contacts the extrusion plate and moves towards the inner side of the wheel, driving the limiting block to insert into the limiting tooth groove opened inside the wheel, and stretching the spring to extend. Moreover, the limiting rod slides inside the mounting frame, providing stable sliding, so that the rotation between the wheels stops, improving the safety of rail vehicle operation. And when there is a problem with the brake pad, this device can be used as a secondary braking device to improve safety.

[0014] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is the overall structure diagram of the present utility model;

[0017] Figure 2 It is the overall sectional structure diagram of the present utility model;

[0018] Figure 3 It is the overall schematic diagram of the braking mechanism of the present utility model;

[0019] Figure 4 It is for the present utility model Figure 2 The partial enlarged schematic diagram at A in it.

[0020] Reference numerals: 1, guide rail; 2, wheel; 3, limiting tooth groove; 4, braking mechanism; 41, mounting frame; 42, hydraulic push rod; 43, first extrusion frame; 44, second extrusion frame; 45, brake pad; 5, limiting mechanism; 51, limiting block; 52, limiting rod; 53, spring; 54, extrusion plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In the following text, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0022] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Embodiment

[0023] As Figures 1 - 4 shown, an embodiment of the present utility model provides a track safety driving device, which includes a guide rail 1, a braking mechanism 4 and a limiting mechanism 5. A wheel 2 is provided at the top of the guide rail 1. Limiting mechanisms 5 are provided on both sides of the wheel 2. A braking mechanism 4 is provided at the top of the wheel 2. Symmetric limiting tooth grooves 3 are respectively formed on both sides of the wheel 2;

[0024] The limiting mechanism 5 includes a limiting block 51, a limiting rod 52, a spring 53 and a pressing plate 54. One end of the limiting rod 52 is fixedly connected to the limiting block 51. A spring 53 is sleeved outside the limiting rod 52. One end of the spring 53 is fixedly connected to the limiting block 51. A pressing plate 54 is fixedly connected to one side of the limiting block 51. At this time, the bottom end of the first pressing frame 43 contacts the pressing plate 54 and moves towards the inner side of the wheel 2, driving the limiting block 51 to insert into the limiting tooth groove 3 formed inside the wheel 2 and stretching the spring 53 to extend. And the limiting rod 52 slides inside the mounting frame 41 to provide stable sliding, so that the rotation between the wheels 2 stops, improving the safety of track driving. And when the brake pads have problems, this device can be used as a secondary braking device to improve safety.

[0025] In one embodiment, specifically, the braking mechanism 4 includes a mounting frame 41, a hydraulic push rod 42, a first pressing frame 43, a second pressing frame 44 and a brake pad 45. Mounting frames 41 are provided on both sides of the wheel 2. Symmetric hydraulic push rods 42 are provided at the bottom end of the mounting frame 41 with the wheel 2 as the center.

[0026] In one embodiment, specifically, the output end of the hydraulic push rod 42 penetrates through the top end of the mounting frame 41. A first pressing frame 43 and a second pressing frame 44 are fixedly arranged on one side of the output end of the hydraulic push rod 42 from top to bottom.

[0027] In one embodiment, specifically, a brake pad 45 is fixedly connected to the inner side of the second pressing frame 44. The outer wall of the brake pad 45 is arranged on one side of the wheel 2.

[0028] In one embodiment, specifically, a limiting rod 52 is slidably connected to the inner wall of the mounting frame 41. One end of the spring 53 is fixedly connected to the inner side of the mounting frame 41.

[0029] In one embodiment, specifically, the inner side of the first extrusion frame 43 is slidably connected to the outer wall of the extrusion plate 54. The top end of the extrusion plate 54 is triangular. By moving the wheel 2 on the guide rail 1, when the wheel 2 needs to brake, the hydraulic push rod 42 is activated to push the first extrusion frame 43 and the second extrusion frame 44 downward. And the brake pad 45 fixed to the lower end of the inner side of the second extrusion frame 44 first contacts one side of the wheel 2. When the brake pad 45 reduces the rotational speed of the wheel 2 through friction, at this time, the bottom end of the first extrusion frame 43 contacts the extrusion plate 54 and moves toward the inner side of the wheel 2.

[0030] When the present utility model is in operation: By moving the wheel 2 on the guide rail 1, when the wheel 2 needs to brake, the hydraulic push rod 42 is activated to push the first extrusion frame 43 and the second extrusion frame 44 downward. And the brake pad 45 fixed to the lower end of the inner side of the second extrusion frame 44 first contacts one side of the wheel 2. When the brake pad 45 reduces the rotational speed of the wheel 2 through friction, at this time, the bottom end of the first extrusion frame 43 contacts the extrusion plate 54 and moves toward the inner side of the wheel 2, and drives the limit block 51 to insert into the limit tooth groove 3 opened inside the wheel 2, and stretches the spring 53 to extend. And the limit rod 52 slides inside the mounting frame 41 to provide stable sliding, so that the rotation between the wheels 2 stops, improving the safety of rail vehicle operation. And when there is a problem with the brake pads, this device can be used as a secondary braking device to improve safety.

[0031] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. A rail safety driving device, comprising a guide rail (1), a brake mechanism (4) and a limit mechanism (5), characterized in that: A wheel (2) is arranged at the top of the guide rail (1), and limiting mechanisms (5) are arranged on both sides of the wheel (2). A brake mechanism (4) is arranged at the top of the wheel (2), and symmetrical limiting tooth grooves (3) are respectively provided on both sides of the wheel (2); The limiting mechanism (5) comprises a limiting block (51), a limiting rod (52), a spring (53) and an extrusion plate (54); one end of the limiting rod (52) is fixedly connected to the limiting block (51); a spring (53) is sleeved on the outer side of the limiting rod (52); one end of the spring (53) is fixedly connected to the limiting block (51); and one side of the limiting block (51) is fixedly connected to the extrusion plate (54).

2. A rail safety driving device according to claim 1, characterized in that: The brake mechanism (4) comprises a mounting frame (41), a hydraulic push rod (42), a first extrusion frame (43), a second extrusion frame (44) and a brake pad (45). The mounting frames (41) are arranged on both sides of the wheel (2). The bottom end of the mounting frame (41) is provided with symmetrical hydraulic push rods (42) with the wheel (2) as the center.

3. A rail safety driving device according to claim 2, characterized in that: The output end of the hydraulic push rod (42) passes through the top end of the mounting frame (41), and a first extrusion frame (43) and a second extrusion frame (44) are fixedly arranged on one side of the output end of the hydraulic push rod (42) from top to bottom.

4. A rail safety driving device according to claim 3, characterized in that: A brake pad (45) is fixedly connected to the inner side of the second extrusion frame (44), and the outer wall of the brake pad (45) is arranged on one side of the wheel (2).

5. A rail safety driving device according to claim 2, characterized in that: The inner wall of the mounting frame (41) is slidably connected to a limit rod (52), and one end of the spring (53) is fixedly connected to the inner side of the mounting frame (41).

6. A rail safety driving device according to claim 3, characterized in that: The inner side of the first extrusion frame (43) is slidably connected to the outer wall of the extrusion plate (54), and the top end of the extrusion plate (54) is provided with a triangular shape.

Images