阅读说明：本技术 一种转向架障碍物检测装置 (Bogie barrier detection device ) 是由 晋军辉 潘华 曾倩 廖巧云 陈小龙 于 2020-12-10 设计创作，主要内容包括：本发明提供了一种转向架障碍物检测装置,所述检测装置包括固定架、检测电路和至少一组检测单元,检测单元包括调节机构和拉线；两个固定架相对设置且均设置于转向架上,拉线与检测电路电连接,且拉线的两端分别位于两个固定架上,至少一个所述固定架上设有调节机构,通过调节机构调节拉线的张紧度。当轨道内掉入障碍物时,障碍物会将拉线切断,导致拉线的电信号中断,从而实现检测电路将报警信号输出至列车的牵引制动控制系统实现列车的制动。采用拉线被障碍物切断的形式来实现障碍物的检测,不再受列车速度的影响,可以适用于不同的列车速度,有效解决了现有方式存在误报警特别多,难以调节的短板,降低了检测装置的使用成本。(The invention provides a bogie obstacle detection device, which comprises a fixing frame, a detection circuit and at least one group of detection units, wherein each detection unit comprises an adjusting mechanism and a pull wire; two mounts set up relatively and all set up on the bogie, act as go-between and detection circuit electricity is connected, and the both ends of acting as go-between are located two mounts respectively, at least one be equipped with adjustment mechanism on the mount, adjust the rate of tension of acting as go-between through adjustment mechanism. When the barrier falls into the track, the barrier can cut off the stay wire, so that the electric signal of the stay wire is interrupted, and the detection circuit outputs an alarm signal to a traction brake control system of the train to realize the braking of the train. The obstacle detection is realized by adopting the mode that the stay wire is cut off by the obstacle, the obstacle detection device is not influenced by the speed of the train any more, the obstacle detection device can be suitable for different train speeds, the problems that the number of false alarms is large and the short plate is difficult to adjust in the existing mode are effectively solved, and the use cost of the detection device is reduced.)

1. The bogie obstacle detection device is characterized by comprising a fixing frame (1), a detection circuit and at least one group of detection units, wherein each detection unit comprises an adjusting mechanism (2) and a stay wire (4); two mounts (1) set up relatively and all set up on the bogie, act as go-between (4) are connected with the detection circuitry electricity, and the both ends of acting as go-between (4) are located two mounts (1) respectively, at least one be equipped with adjustment mechanism (2) on mount (1), adjust the rate of tension of acting as go-between (4) through adjustment mechanism (2).

2. The bogie obstacle detection device according to claim 1, wherein an adjustment mechanism (2) is provided on both of the two fixed frames (1), and the stay (4) connects the adjustment mechanisms (2) on both fixed frames (1).

3. The bogie obstacle detection device according to claim 2, wherein the fixed frame (1) is further provided with a guide wheel (3), and the pull wire (4) is connected with the adjusting mechanism (2) by passing through the guide wheel (3) on the fixed frame (1).

4. The bogie obstacle detection device according to claim 3, wherein the adjustment mechanism (2) comprises a wire coil (5) and a locking mechanism, wherein the wire coil (5) is rotatably arranged on the fixed frame (1) and used for winding and unwinding the pull wire (4), and the wire coil (5) is locked by the locking mechanism.

5. Bogie obstacle detection device according to claim 4, characterized in that the locking mechanism comprises a fixed shaft arranged on the fixed frame (1), the wire coil (5) being rotatably arranged on the fixed shaft, the end of the fixed shaft being provided with an external thread, and a locking nut arranged on the fixed shaft for locking the wire coil (5).

6. The bogie obstacle detection device according to claim 5, wherein the stay wire (4) is a wire.

7. The bogie obstacle detection device according to claim 6, wherein the guide wheel (3) and the wire coil (5) are made of an insulator.

8. The bogie obstacle detection device according to claim 1, wherein a cavity is provided on the fixed frame (1), and the detection circuit is provided in the cavity.

9. The bogie obstacle detection device of claim 1, wherein the detection circuit is a relay circuit or an amplifier circuit.

10. The bogie obstacle detection device according to claim 1, wherein the length direction of the wire (4) is perpendicular to the length direction of the rail (6); the pull wires (4) in the multiple groups of detection units are sequentially arranged along the length direction of the track (6).

Technical Field

The invention relates to the technical field of rail transit, in particular to a bogie obstacle detection device.

Background

During operation of urban rail trains, the urban rail trains often touch obstacles and fall into rail intrusion limits, so that serious consequences such as train collision and derailment are caused. To the early warning detection of barrier, prior art adopts the hard connecting rod collision mode more, carries out spacing detection through a collision roof beam promptly, and when the train limit invaded the foreign matter, the foreign matter touched the crossbeam, leads to the crossbeam to take place the displacement, then detects the displacement of crossbeam through limit switch/proximity switch and judges the foreign matter invasion.

However, the mode has a lot of false alarms and short plates which are difficult to adjust, and is mainly characterized in that the stress and the moving displacement of the cross beam are difficult to adjust, for example, when the speed of a train is adjusted well at 30km/h, the train cannot adapt to the speed at 60km/h, when the speed at 60km/h is adjusted well, the train cannot adapt to the speed at 30km/h after returning, the impact force generated by the impact of the same object under different speeds is different, and the mode has low practicability and is complex to use in the actual use process; in addition, the cross beam is required to be as light as possible in the scheme, once the cross beam is overweight, the vibration causes misoperation in the running process of the train, and meanwhile, the cross beam is required to be as high in strength as possible, so that great difficulty is brought to the manufacturing process of the cross beam.

In view of the foregoing, there is a need for a bogie obstacle detection device that solves the problems of the prior art.

Disclosure of Invention

The invention aims to provide a bogie barrier detection device, which aims to solve the problems that the conventional hard connecting rod collision mode has more false alarms and is difficult to adjust short plates, and the specific technical scheme is as follows:

a bogie obstacle detection device comprises a fixed frame, a detection circuit and at least one group of detection units, wherein each detection unit comprises an adjusting mechanism and a pull wire; two mounts set up relatively and all set up on the bogie, act as go-between and detection circuit electricity is connected, and the both ends of acting as go-between are located two mounts respectively, at least one be equipped with adjustment mechanism on the mount, adjust the rate of tension of acting as go-between through adjustment mechanism.

Preferably, in the above technical scheme, two of the fixing frames are both provided with an adjusting mechanism, and the stay wire is connected with the adjusting mechanisms on the two fixing frames.

Preferably, the fixing frame is further provided with a guide wheel, and the pull wire is connected with the adjusting mechanism by bypassing the guide wheel on the fixing frame.

Preferably in the above technical scheme, the adjusting mechanism comprises a wire coil and a locking mechanism, the wire coil is rotatably arranged on the fixing frame and used for winding and unwinding the pull wire, and the wire coil is locked by the locking mechanism.

Preferably in the above technical scheme, the locking mechanism includes a fixed shaft and a locking nut, the fixed shaft is arranged on the fixed frame, the wire coil is rotatably arranged on the fixed shaft, an external thread is arranged at the end of the fixed shaft, and the locking nut is sleeved on the fixed shaft and used for locking the wire coil.

Preferably, in the above technical solution, the stay wire is a metal wire.

Preferably, in the above technical scheme, the guide wheel and the wire coil are made of insulators.

Preferably, a cavity is arranged on the fixing frame, and the detection circuit is arranged in the cavity.

Preferably, in the above technical solution, the detection circuit is a relay circuit or an amplifier circuit.

Preferably, in the above technical solution, the length direction of the stay wire is perpendicular to the length direction of the track; the stay wires in the multiple groups of detection units are sequentially arranged along the length direction of the track.

The technical scheme of the invention has the following beneficial effects:

the detection device is characterized in that stay wires are arranged on the two fixing frames and are tensioned through the adjusting mechanism, and the stay wires are electrically connected with the detection circuit; when the barrier falls into the track, the barrier can cut off the stay wire, so that the electric signal of the stay wire is interrupted, and the detection circuit outputs an alarm signal to a traction brake control system of the train to realize the braking of the train. Because the invention adopts the form that the stay wire is cut off by the barrier to realize the detection of the barrier, the detection is not influenced by the speed of the train any more, namely, the detection device of the invention can be suitable for different speeds of the train, effectively solves the problems of more false alarms and difficult adjustment of short plates in the existing mode, and reduces the use cost (including the labor cost of adjustment and the manufacturing cost of the beam) of the detection device.

Meanwhile, the tension degree of the stay wire is adjusted by arranging the adjusting mechanism, the stay wire is ensured to be in a stretched straight state in the running process of the train, and the stay wire can be cut off more easily by an obstacle in the stretched straight state. In addition, a plurality of groups of detection units are arranged, so that detection leakage caused by failure of the single group of detection units is effectively prevented, and effective detection is ensured.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a front view of the detection device of the present invention;

FIG. 2 is a side view of the test device of the present invention;

FIG. 3 is a schematic diagram of a first form of detection circuit;

FIG. 4 is a schematic diagram of a second form of detection circuit;

the device comprises a fixing frame 1, a fixing frame 2, an adjusting mechanism 3, a guide wheel 4, a stay wire 4.1, a stay wire I, a stay wire II, a stay wire III, a stay wire 5, a wire coil 6 and a track.

Detailed Description

Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Example 1:

referring to fig. 1-4, a bogie obstacle detection device comprises a fixed frame 1, a detection circuit and at least one group of detection units, wherein the detection units comprise an adjusting mechanism 2 and a pull wire 4; two mounts 1 set up relatively and all set up on the bogie of train, act as go-between 4 is connected with detection circuit electricity, and the both ends of acting as go-between 4 are located two mounts 1 respectively, at least one be equipped with adjustment mechanism 2 on the mount 1, adjust the rate of tension of acting as go-between 4 through adjustment mechanism 2.

In this embodiment, the two fixing frames 1 are both provided with the adjusting mechanisms 2, and the stay wires 4 are connected with the adjusting mechanisms 2 on the two fixing frames 1.

Preferably, the length direction of the pulling wire 4 is perpendicular to the length direction of the track 6, and the pulling wire is positioned above the track, see fig. 1; the pull wires 4 in the multiple groups of detection units are sequentially arranged along the length direction of the track 6; in this embodiment, three sets of detection units are provided, and the corresponding pull wires 4 are respectively a pull wire one 4.1, a pull wire two 4.2 and a pull wire three 4.3, as shown in fig. 1 and 2.

Preferably, the fixing frame 1 is further provided with a guide wheel 3, and the pull wire 4 is connected with the adjusting mechanism 2 by bypassing the guide wheel 3 on the fixing frame 1. Referring to fig. 2, three groups of pull wires need to be correspondingly provided with three guide wheels 3 on the fixing frame, and the three guide wheels 3 can be installed through one pin shaft.

In this embodiment, preferably, the adjusting mechanism 2 includes a wire coil 5 and a locking mechanism, the wire coil 5 is rotatably disposed on the fixing frame 1 and used for winding and unwinding the pull wire 4, and the wire coil 5 is locked by the locking mechanism.

The locking mechanism comprises a fixed shaft and a locking nut, the fixed shaft is arranged on the fixed frame 1, the wire coil 5 is rotatably arranged on the fixed shaft, an external thread is arranged at the end part of the fixed shaft, and the locking nut is sleeved on the fixed shaft and used for locking the wire coil 5.

Preferably, the pull wire 4 is a metal wire, and the guide wheel 3 and the wire coil 5 are made of insulators.

Preferably, a cavity is formed in the fixing frame 1, and the detection circuit is disposed in the cavity (the cavity is not shown).

The detection circuit is a relay circuit or an amplifier circuit. Wherein, fig. 3 shows that the detection circuit is a relay circuit, which comprises a power supply, a relay and a controller, three pull wires are respectively and electrically connected with the relay, when one pull wire is cut off by a barrier, a contact corresponding to the relay is closed, and the controller outputs an alarm signal to a train traction braking control system, thereby realizing train braking; fig. 4 shows that the detection circuit is an amplifier circuit, which also outputs an alarm signal when one of the wires is cut off by an obstacle, and the working principle thereof can be seen in the prior art.

The working principle of the detection device in the embodiment is as follows: when a foreign body falls into the track, the pull wire is broken when the foreign body (namely an obstacle) touches the pull wire, and meanwhile, an electric signal corresponding to the conduction of the pull wire is interrupted, the detection circuit sends out an alarm signal after detecting the signal interruption, and the train immediately enters into emergency braking.

The stay wire is tensioned through the adjusting mechanism, the stay wire is ensured to be in a proper tensioning state, the stay wire is ensured to be smoothly cut off when an obstacle is touched, and therefore alarming is achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.