Railway vehicle composite structure speed measuring device

Abstract

The utility model discloses a railway vehicle composite structure speed measuring device which comprises a protection box, a speed sensor is installed at the inner bottom of the protection box, heat dissipation holes are formed in the side wall of the protection box, dustproof nets are embedded in the heat dissipation holes, two symmetrically-arranged fixing blocks are fixedly connected to the side wall of one end of the protection box, and the fixing blocks are fixedly connected to the side wall of the other end of the protection box. And a cleaning mechanism used for cleaning the dust screens on the same side is arranged between the two fixing blocks, the cleaning mechanism comprises a limiting rod fixedly connected between the two fixing blocks, the limiting rod is slidably sleeved with a cleaning brush plate, and a driving mechanism used for driving the cleaning mechanism is arranged between the two fixing blocks. The dust-proof screen is reasonable in structure, dust adsorbed on the dust-proof screen is brushed off by arranging the cleaning mechanism, the driving mechanism and the power mechanism, and the situation that the heat dissipation effect is affected due to blockage caused by too much dust is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit vehicle equipment technical field especially relates to a rail vehicle composite structure speed measuring device. BACKGROUND

[0002] Vehicle speed monitoring is the basic condition of rail transit vehicle traction, brake control. Vehicle controller (VCU) compares the current speed value of the vehicle with the target speed value of the vehicle calculated by the train control and management system (TCMS), and then issues traction or brake control instructions to the traction controller (TCU) and brake controller (BCU), to realize the functions of train traction, control, anti-skid and anti-slip control.

[0003] At present, the speed monitoring of rail transit vehicles is mainly realized by the speed sensor installed on the axle. In order to protect the sensor, a protective box is usually used to set the sensor in the protective box. In order to avoid damage to the sensor due to high temperature, a heat dissipation hole is usually provided on the protective box, and a dust screen is arranged at the heat dissipation hole to prevent dust from entering. However, after a long time of use, dust will accumulate on the dust screen, which will cause blockage after a long time, and will affect heat dissipation. Therefore, the utility model provides a rail vehicle composite structure speed measuring device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a rail vehicle composite structure speed measuring device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A rail vehicle composite structure speed measuring device, comprising a protective box, a speed sensor is installed on the inner bottom of the protective box, a heat dissipation hole is provided on the side wall of the protective box, a dust screen is embedded in the heat dissipation hole, two symmetrically arranged fixing blocks are fixedly connected to the side wall of one end of the protective box, a cleaning mechanism for cleaning the dust screen is arranged between the two fixing blocks, the cleaning mechanism comprises a limiting rod fixedly connected between the two fixing blocks, a cleaning brush plate is slidably sleeved on the limiting rod, a driving mechanism for driving the cleaning mechanism is arranged between the two fixing blocks, a shell is fixedly connected to the side wall of both ends of the protective box, and a power mechanism for providing power for the driving mechanism is arranged in the two shells.

[0007] Preferably, the driving mechanism comprises a reciprocating screw rod rotatably connected between the two fixing blocks, and the reciprocating screw rod penetrates through the cleaning brush plate and cooperates with the cleaning brush plate.

[0008] Preferably, the power mechanism comprises a transmission rod rotatably connected between the inner walls of the two ends of the shell, and a centrifugal fan blade is fixedly sleeved on the two ends of the transmission rod located in the two shells.

[0009] Preferably, the end of the transmission rod and the end of the reciprocating lead screw are fixedly sleeved with synchronous wheels, and the two synchronous wheels are drivingly connected through a synchronous belt.

[0010] Preferably, the upper end and the lower end of the protective box are fixedly connected with mounting plates.

[0011] Preferably, the cleaning brush plate cooperates with the dust screen, and the surface of the cleaning brush plate and the dust screen is in contact.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. By setting the cleaning mechanism, the driving mechanism and the power mechanism, when the vehicle is running, the airflow enters from the air inlet and is discharged from the air outlet, under the action of the airflow, the centrifugal fan blade rotates to drive the transmission rod to rotate, under the action of the synchronous wheel and the synchronous belt, the reciprocating lead screw is driven to rotate, and the cleaning brush plate cooperating with the reciprocating lead screw reciprocates, and the cleaning brush plate reciprocates to repeatedly wipe the surface of the dust screen, so that the dust adsorbed on the dust screen is brushed off, and the problem of blockage caused by too much dust and affecting the heat dissipation effect is avoided.

[0014] 2. By setting the power mechanism, the airflow generated during the running of the vehicle drives the transmission rod to rotate, and the synchronous wheel and the synchronous belt are drivingly connected to provide power for the driving mechanism, so that the power supply is not needed, and the practicability of the device is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective view of a track vehicle composite structure speed measuring device is provided for the utility model;

[0016] Figure 2 A perspective view of a track vehicle composite structure speed measuring device is provided for the utility model;

[0017] Figure 3 A first cross-sectional top view of a track vehicle composite structure speed measuring device is provided for the utility model;

[0018] Figure 4 A second cross-sectional top view of a track vehicle composite structure speed measuring device is provided for the utility model;

[0019] Figure 5 A Figure 1 structure enlarged view of A in the utility model.

[0020] In the figure: 1 mounting plate, 2 protective box, 3 synchronous wheel, 4 fixed block, 5 shell, 6 heat dissipation hole, 7 dust screen, 8 cleaning brush plate, 9 centrifugal fan blade, 10 air inlet, 11 air outlet, 12 reciprocating screw, 13 limit rod, 14 speed sensor, 15 transmission rod, 16 synchronous belt. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0022] Reference Figures 1-5 A track vehicle composite structure speed measuring device, including protective box 2, the inner bottom of protective box 2 is provided with speed sensor 14, the sidewall of protective box 2 is provided with heat dissipation hole 6, heat dissipation hole 6 is embedded with dust screen 7, one end of the sidewall of protective box 2 is fixedly connected with two symmetrical fixed blocks 4, cleaning mechanism for cleaning dust screen 7 is arranged between the two fixed blocks 4, and the cleaning mechanism includes limit rod 13 fixedly connected between the two fixed blocks 4, cleaning brush plate 8 is slidably connected on limit rod 13, the upper end and the lower end of protective box 2 are fixedly connected with mounting plate 1, and mounting plate 1 is used to be connected with the vehicle body.

[0023] In the utility model, driving mechanism for driving cleaning mechanism is arranged between the two fixed blocks 4, and the driving mechanism includes reciprocating screw 12 rotatably connected between the two fixed blocks 4, and reciprocating screw 12 passes through cleaning brush plate 8 and is matched with cleaning brush plate 8.

[0024] In the utility model, the two end sidewalls of protective box 2 are fixedly connected with shell 5, power mechanism for improving the power of driving mechanism is arranged in the two shells 5, the power mechanism includes transmission rod 15 rotatably connected between the inner walls of the two ends of shell 5, centrifugal fan blade 9 is fixedly connected on the two ends of transmission rod 15 in the two shells 5, air inlet 10 is arranged on the one end sidewall of shell 5, and air outlet 11 is arranged on the one end sidewall of shell 5 away from air inlet 10.

[0025] In the utility model, the end of transmission rod 15 and the end of reciprocating screw 12 are fixedly connected with synchronous wheel 3, two synchronous wheels 3 are drivingly connected through synchronous belt 16, cleaning brush plate 8 is matched with dust screen 7, and the surface of cleaning brush plate 8 and dust screen 7 is in contact.

[0026] The utility model discloses a dustproof net cleaning device, including synchronous belt 16, synchronous wheel 3, reciprocating screw rod 12, transmission rod 15, centrifugal fan blade 9, dustproof net 7, cleaning brush plate 8, speed sensor 14, air inlet 10 and air outlet 11.

[0027] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the utility model disclosed technical range, according to the utility model technical scheme and the utility model concept of the utility model are equivalent to replace or change, all should be covered in the protection scope of the utility model.

Claims

1. A speedometer device for a composite structure of a rail vehicle, comprising a protective box (2), characterized in that, The inner bottom of the protective box (2) is provided with a speed sensor (14), the sidewall of the protective box (2) is provided with a heat dissipation hole (6), the heat dissipation hole (6) is embedded with a dust screen (7), one end of the sidewall of the protective box (2) is fixedly connected with two symmetrically arranged fixing blocks (4), a cleaning mechanism for cleaning the dust screen (7) is arranged between the two fixing blocks (4), the cleaning mechanism comprises a limiting rod (13) fixedly connected between the two fixing blocks (4), the limiting rod (13) is slidably sleeved with a cleaning brush plate (8), a driving mechanism for driving the cleaning mechanism is arranged between the two fixing blocks (4), the two end sidewalls of the protective box (2) are fixedly connected with housings (5), and the two housings (5) are provided with power mechanisms for providing power for the driving mechanism.

2. A rail vehicle composite structure speedometer device according to claim 1, characterized in that The driving mechanism comprises a reciprocating screw rod (12) rotatably connected between the two fixing blocks (4), and the reciprocating screw rod (12) penetrates through the cleaning brush plate (8) and is matched with the cleaning brush plate (8).

3. A rail vehicle composite structure speedometer device according to claim 2, characterized in that The power mechanism comprises a transmission rod (15) rotatably connected between the inner walls of the two ends of the housing (5), and the two ends of the transmission rod (15) located in the two housings (5) are fixedly sleeved with centrifugal fan blades (9), one end of the sidewall of the housing (5) is provided with an air inlet (10), and one end of the sidewall of the housing (5) away from the air inlet (10) is provided with an air outlet (11).

4. A rail vehicle composite structure speedometer device according to claim 3, characterized in that The end of the transmission rod (15) and the end of the reciprocating screw rod (12) are fixedly sleeved with synchronous wheels (3), and the two synchronous wheels (3) are drivingly connected through a synchronous belt (16).

5. A rail vehicle composite structure speedometer device according to claim 4, characterized in that The upper end and the lower end of the protective box (2) are fixedly connected with mounting plates (1).

6. A rail vehicle composite structure speedometer device according to claim 5, characterized in that The cleaning brush plate (8) is matched with the dust screen (7), and the surface of the cleaning brush plate (8) is in contact with the dust screen (7). The cleaning brush plate (8) is matched with the dust screen (7), and the surface of the cleaning brush plate (8) is in contact with the dust screen (7).

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