Vehicle body displacement detection device installed on side frame of railway wagon

Abstract

The utility model discloses a vehicle body displacement detection device installed on a side frame of a rail wagon, a supporting frame comprises a top plate, a transverse partition plate and two vertical plates, two ends of the top plate are respectively connected with the tops of the two vertical plates, and the top plate is provided with an installation hole used for installing a displacement sensor; the two ends of the transverse partition plate are connected with the upper portions of the two vertical plates correspondingly so that the supporting frame can be divided into a first installation space and a second installation space in the vertical direction, the displacement sensor is located in the first installation space, and the second installation space is used for being connected with a train side frame. The bottoms of the two vertical plates are provided with a fixed clamping belt and a movable clamping belt respectively, the two clamping belts are detachably connected through a fastener, and after the supporting frame is installed on the train side frame, the fastener is screwed to drive the movable clamping belt to be close to the fixed clamping belt, so that the supporting frame is locked on the train side frame. The utility model has the advantages of compact structure, small volume, convenience in disassembly and assembly and the like, and solves the problem that the railway freight car lacks a sensor installation foundation and is inconvenient to upgrade an intelligent system.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a vehicle body displacement detection device installed on a side frame of a railway freight car. Background Art

[0002] For a long time, the braking system of railway freight cars has been a purely mechanical device. The braking method is that the driver operates the locomotive brake main pressure to discharge to the atmosphere (decompression), and the entire train of vehicles starts to reduce pressure backwards from the first position behind the locomotive (hereinafter referred to as the braking wave speed). When the brake main pressure of a car behind the locomotive is reduced, the pressure balance on both sides of the control valve of the car is broken, and the control valve opens the pressure air brake passage of this car to produce a braking effect.

[0003] In order to improve the braking efficiency of railway vehicles, EMU vehicles and railway passenger cars are equipped with ECP (electronically controlled air brake) systems, which use electrical signals instead of braking wave speed to realize intelligent train braking, reduce the braking time difference between the front and rear vehicles in the train, improve the braking efficiency of the train, and reduce the longitudinal impact of the train.

[0004] Compared with EMUs and passenger cars, railway freight cars not only need to solve the problem of braking wave velocity but also need to solve the difference in braking rate (deceleration) between empty cars and loaded cars. The load information between empty cars and loaded cars is used to control the pressure of the vehicle brake cylinders. That is, the pressure of the brake cylinders of empty cars is smaller, and the pressure of the brake cylinders of heavy cars is larger, thereby ensuring that the difference in braking rates between empty and loaded cars tends to be consistent.

[0005] If the ECP upgrade is carried out, the load information of the heavy vehicle can be obtained through sensor technology, and the vehicle load information can be calculated by measuring the vertical sinking of the vehicle body, that is, a displacement sensor can be installed on each side of the same bogie to measure the vehicle load, and the brake cylinder pressure required by the vehicle can be calculated. In other words, if the intelligent system is to be upgraded, the corresponding sensors must be installed on the vehicle. At present, there is no sensor installation foundation for railway freight cars, and designing a safe and reasonable sensor installation device is one of the problems that the railway freight car industry currently needs to solve. Utility Model Content

[0006] The technical problem to be solved by the utility model is as follows: in view of the problem that existing railway freight cars lack a sensor installation foundation and are inconvenient for intelligent system upgrades, a vehicle body displacement detection device installed on the side frame of a railway freight car is provided, which has a compact structure, a small size and is easy to assemble and disassemble.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A vehicle body displacement detection device installed on a side frame of a railway freight car comprises a displacement sensor and a support frame, wherein the support frame comprises a top plate, a transverse partition and two vertical plates, wherein the two ends of the top plate are respectively connected to the tops of the two vertical plates, and a mounting hole for mounting the displacement sensor is provided on the top plate; the two ends of the transverse partition are respectively connected to the upper parts of the two vertical plates, so that the support frame is divided into a first mounting space and a second mounting space along the vertical direction, the displacement sensor is located in the first mounting space, and the second mounting space is used to connect to the side frame of the train; a fixed clip is provided at the bottom of one of the vertical plates, and an active clip is provided at the bottom of the other vertical plate, and the fixed clip and the active clip are detachably connected by fasteners, and when the support frame is installed to the side frame of the train, the fasteners are screwed to drive the active clip close to the fixed clip, so that the support frame is locked on the side frame of the train.

[0009] As a further improvement of the present invention, the end of the movable cassette is provided with a mounting groove, and the mounting groove is provided with a fastener. When the end of the fixed cassette extends into the mounting groove, the fastener is screwed to drive the movable cassette to approach the fixed cassette.

[0010] As a further improvement of the present invention, the fastener is a fastening bolt.

[0011] As a further improvement of the utility model, elastic claws are symmetrically provided on both sides of the transverse partition. When the second installation space is sleeved on the outside of the train side frame, the elastic claws press the train side frame downward.

[0012] As a further improvement of the present invention, a detachable fastening screw is provided on the side of the displacement sensor. When the displacement sensor is vertically nested into the mounting hole, the fastening screw is locked on the side of the displacement sensor in the first mounting space along the horizontal direction.

[0013] As a further improvement of the present invention, a lead wire is provided at the bottom of the displacement sensor, the lead wire is located in the first installation space, and the lead wire is used for data transmission.

[0014] As a further improvement of the utility model, the support frame, the fixed cassette and the movable cassette are all made of stainless steel.

[0015] Compared with the prior art, the advantages of the utility model are:

[0016] The utility model discloses a vehicle displacement detection device installed on a side frame of a railway freight car. By dividing a support frame into a first installation space and a second installation space in a vertical direction, a displacement sensor is installed in the first installation space, and the second installation space is used to connect the side frame of the train, so that the displacement detection device is connected and fixed to the side frame of the railway freight car. Furthermore, a fixed card belt is provided at the bottom of one of the vertical plates of the support frame, and a movable card belt is provided at the bottom of the other vertical plate. The fixed card belt and the movable card belt are detachably connected by a fastener. When the support frame is installed on the side frame of the train, the fastener is screwed to drive the movable card belt close to the fixed card belt, so that the support frame is locked on the side frame of the train. When the displacement detection device needs to be removed, it only needs to screw the fastener in the reverse direction to drive the movable card belt away from the fixed card belt, so that the displacement detection device can be removed from the side frame of the train. The utility model not only realizes the firm fixation of the displacement sensor, but also realizes the reliable fixation of the displacement sensor at the specified position of the side frame of the train bogie. At the same time, it has the advantages of convenient disassembly and installation, makes the best use of the existing structure of the railway freight car, and reduces the cost of upgrading and transforming the railway freight car into an intelligent system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure principle of a vehicle body displacement detection device installed on a side frame of a railway freight vehicle in a specific embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the structural principle of the support frame in a specific embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection structure principle between the displacement detection device and the side frame of a railway freight car in a specific embodiment of the utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the structural principle at A in the middle.

[0021] Legend: 1. Displacement sensor; 2. Mounting hole; 3. Support frame; 31. Top plate; 32. Vertical plate; 33. Horizontal partition; 34. First installation space; 35. Second installation space; 4. Fastening screw; 5. Lead wire; 6. Elastic claw; 7. Fixed clip; 8. Fastening bolt; 9. Movable clip; 91. Mounting slot; 10. Train side frame. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0023] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] Example

[0026] like Figures 1 to 4 As shown, the vehicle displacement detection device installed on the side frame of a railway freight car of the utility model includes a displacement sensor 1 and a support frame 3. The displacement sensor 1 is used to accurately detect the displacement change of the side frame of the railway freight car during braking. The support frame 3 includes a top plate 31, a transverse partition 33 and two vertical plates 32. The two ends of the top plate 31 are respectively connected to the tops of the two vertical plates 32, and the top plate 31 is provided with mounting holes 2 for installing the displacement sensor 1. The two ends of the transverse partition 33 are respectively connected to the upper parts of the two vertical plates 32, so as to realize that the support frame 3 is divided into a first installation space 34 and a second installation space 35 along the vertical direction. The displacement sensor 1 is located in the first installation space 34, and the second installation space 35 is used to connect to the train side frame 10. As shown Figure 1 and Figure 2 As shown, a fixed clip 7 is provided at the bottom of one of the vertical plates 32, and a movable clip 9 is provided at the bottom of the other vertical plate 32. The fixed clip 7 and the movable clip 9 are detachably connected by fasteners. When the support frame 3 is installed on the train side frame 10, the fasteners are screwed to drive the movable clip 9 to approach the fixed clip 7, so that the support frame 3 is locked on the train side frame 10.

[0027] In this embodiment, the support frame 3 is divided into a first installation space 34 and a second installation space 35 in the vertical direction, and the displacement sensor 1 is installed in the first installation space 34, and the second installation space 35 is used to connect the train side frame 10, that is, the displacement detection device is connected and fixed to the railway freight car side frame; further, a fixed card belt 7 is provided at the bottom of one of the vertical plates 32 of the support frame 3, and an active card belt 9 is provided at the bottom of the other vertical plate 32, and the fixed card belt 7 and the active card belt 9 are detachably connected by fasteners. When the support frame 3 is installed to the train side frame 10, the fasteners are screwed , so as to drive the active cassette 9 to approach the fixed cassette 7, that is, the support frame 3 is locked on the train side frame 10. When the displacement detection device needs to be removed, it is only necessary to reversely screw the fastener to drive the active cassette 9 away from the fixed cassette 7, so that the displacement detection device can be removed from the train side frame 10. This embodiment not only firmly fixes the displacement sensor 1, but also reliably fixes the displacement sensor 1 at the specified position of the train bogie side frame. At the same time, it has the advantages of easy disassembly and installation, maximizes the use of the existing structure of the railway freight car, and reduces the cost of upgrading and transforming the railway freight car into an intelligent system.

[0028] like Figure 2 As shown, the end of the movable cassette 9 is provided with a mounting groove 91, and the mounting groove 91 is provided with a fastener. When the end of the fixed cassette 7 extends into the mounting groove 91, the fastener is screwed to drive the movable cassette 9 close to the fixed cassette 7. Further, the fastener is a fastening bolt 8, and the fastening bolt 8 can drive the movable cassette 9 to move leftward or rightward along the fixed cassette 7, thereby achieving the tightening or loosening of the support frame 3.

[0029] like Figure 1 , Figure 3 and Figure 4 As shown, elastic claws 6 are symmetrically provided on both sides of the transverse partition 33. When the second installation space 35 is sleeved on the outside of the train side frame 10, the elastic claws 6 press the train side frame 10 downward to improve the connection firmness between the support frame 3 and the train side frame 10.

[0030] like Figure 1 As shown, a detachable fastening screw 4 is provided on the side of the displacement sensor 1. When the displacement sensor 1 is vertically nested into the mounting hole 2, the fastening screw 4 is horizontally locked on the side of the displacement sensor 1 in the first mounting space 34 to improve the installation firmness of the displacement sensor 1 and prevent the displacement sensor 1 from being offset.

[0031] like Figure 1 As shown, a lead 5 is provided at the bottom of the displacement sensor 1, and the lead 5 is located in the first installation space 34, and the lead 5 is used for data transmission. By providing a fastening screw 4 on the side of the displacement sensor 1, the installation stability of the displacement sensor 1 can be improved, and the lead 5 can be easily connected.

[0032] In this embodiment, the support frame 3, the fixed cassette 7 and the movable cassette 9 are all made of stainless steel. Further, the support frame 3, the fixed cassette 7 and the movable cassette 9 can all be made of stainless steel sheet materials, and the top plate 31, the transverse partition 33, the two vertical plates 32, the fixed cassette 7 and the movable cassette 9 can be formed in one piece, which has both good structural strength and good elasticity, thereby improving the installation reliability of the displacement sensor 1.

[0033] like Figure 3 and Figure 4 As shown, when installing the displacement detection device of this embodiment, first disassemble the connection between the active cassette 9 and the fixed cassette 7, and set the second installation space 35 at the preset position outside the train side frame 10. After the support frame 3 is connected to the train side frame 10, insert the fixed cassette 7 into the installation groove 91 of the active cassette 9, and tighten the fastening bolt 8 to achieve the active cassette 9 to approach and tighten the fixed cassette 7, so as to drive the support frame 3 to move downward and hold the train side frame 10 tightly, so that the support frame 3 and the displacement sensor 1 will not produce vertical and lateral movement relative to the train side frame 10. At the same time, under the action of the downward pulling force, the elastic claws 6 on both sides of the diaphragm 33 press the train side frame 10 downward. Since the elastic claws 6 have a certain pre-tightening force, the friction between the elastic claws 6 and the train side frame 10 is increased, so that the support frame 3 and the displacement sensor 1 will not produce longitudinal movement relative to the train side frame 10, and the support frame 3 and the displacement sensor 1 are reliably installed. When it is necessary to remove it, just screw the fixing bolt 8 in the opposite direction to separate the movable cassette 9 from the fixed cassette 7, and then the displacement detection device can be removed from the train side frame 10. When it is necessary to replace the displacement sensor 1, just remove the displacement sensor 1 from the mounting hole 2 at the top of the support frame 3 and replace it with a new one, which is simple and reliable.

[0034] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A vehicle displacement detection device installed on a side frame of a railway freight car, characterized in that: The invention comprises a displacement sensor (1) and a support frame (3), wherein the support frame (3) comprises a top plate (31), a transverse partition (33) and two vertical plates (32), wherein two ends of the top plate (31) are respectively connected to the tops of the two vertical plates (32), and a mounting hole (2) for mounting the displacement sensor (1) is provided on the top plate (31); two ends of the transverse partition (33) are respectively connected to the upper parts of the two vertical plates (32), so that the support frame (3) is divided into a first mounting space (34) and a second mounting space (35) in a vertical direction, and the displacement sensor (1) is mounted on the top plate (31). The device (1) is located in a first installation space (34), and a second installation space (35) is used to connect to a train side frame (10); a fixed clip (7) is provided at the bottom of one vertical plate (32), and a movable clip (9) is provided at the bottom of another vertical plate (32); the fixed clip (7) and the movable clip (9) are detachably connected via a fastener; when the support frame (3) is installed on the train side frame (10), the fastener is screwed to drive the movable clip (9) close to the fixed clip (7), so that the support frame (3) is locked on the train side frame (10).

2. The vehicle displacement detection device installed on the side frame of a railway freight car according to claim 1, characterized in that: The end of the movable clip belt (9) is provided with a mounting groove (91), and the mounting groove (91) is provided with a fastener. When the end of the fixed clip belt (7) extends into the mounting groove (91), the fastener is screwed to drive the movable clip belt (9) close to the fixed clip belt (7).

3. The vehicle displacement detection device installed on the side frame of a railway freight car according to claim 2, characterized in that: The fastener is a fastening bolt (8).

4. The vehicle displacement detection device installed on the side frame of a railway freight car according to any one of claims 1 to 3, characterized in that: Elastic claws (6) are symmetrically provided on both sides of the transverse partition (33); when the second installation space (35) is sleeved on the outside of the train side frame (10), the elastic claws (6) press the train side frame (10) downwards.

5. The vehicle body displacement detection device installed on the side frame of a railway freight car according to any one of claims 1 to 3, characterized in that: The side of the displacement sensor (1) is provided with a detachable fastening screw (4); when the displacement sensor (1) is vertically nested in the mounting hole (2), the fastening screw (4) is locked on the side of the displacement sensor (1) in the first mounting space (34) along the horizontal direction.

6. The vehicle displacement detection device installed on the side frame of a railway freight car according to claim 5, characterized in that: A lead wire (5) is provided at the bottom of the displacement sensor (1); the lead wire (5) is located in the first installation space (34); the lead wire (5) is used for data transmission.

7. The vehicle body displacement detection device installed on the side frame of a railway freight car according to any one of claims 1 to 3, characterized in that: The support frame (3), the fixed clip belt (7) and the movable clip belt (9) are all made of stainless steel.

Images