Traction power supply backflow monitoring device

Abstract

The utility model relates to a traction power supply backflow monitoring device which comprises a sensor body and a base rotationally arranged on the sensor body, and an installation bolt is movably arranged on the base. The gear is arranged on the sensor main body, and the gear is arranged in the base; the limiting mechanism is arranged in the base in a sliding manner, and the mounting bolt can be extruded with the limiting mechanism; the arc-shaped plate is arranged on the limiting mechanism, the arc-shaped plate clamps the gear and fixes the angle of the gear, and when a mounting bolt is tightened, through the effect of the limiting mechanism, tooth protrusions on the arc-shaped plate can be embedded into gear teeth of the gear, and the angle of the sensor body relative to the base is fixed; therefore, when the base is fixed, the angle of the sensor main body is fixed synchronously to adapt to different cable directions, the cable direction does not need to be strictly required to be completely consistent with the indication direction of the sensor, the problem of difficulty in installation in the prior art is effectively solved, and the installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rail transit technical field, concretely relates to traction power supply backflow monitoring devices. BACKGROUND

[0002] The working principle of the traction power supply backflow monitoring device is based on current sensor and data processing technology. When the train obtains power from the catenary and drives the motor to run, part of the current will flow back to the rail through the contact point of the wheel and the rail, and then return to the traction substation along the backflow line. The device monitors the size and direction of the backflow current in real time through the current sensor, and transmits the data to the data processing unit for analysis and processing. Once abnormal data is found, the device will immediately issue an alarm to prompt maintenance personnel to check and repair.

[0003] However, the bottom end mounting hole of the current sensor in the prior art is perpendicular to the connecting ears and fixing ears on both sides of the sensor. During installation, the cable direction needs to be consistent with the direction indicated by the sensor according to the requirements. However, in actual installation scenarios, this installation requirement is often difficult to fully meet because the actual situation may be affected by space layout, cable routing and other factors, making it difficult to accurately keep the cable direction consistent with the sensor direction, thereby causing certain difficulties in installation work. UTILITY MODEL CONTENTS

[0004] The utility model aims to solve the above problems and provides a power supply backflow monitoring device suitable for various cable routing.

[0005] The utility model achieves the above-mentioned purposes through the following technical solutions:

[0006] The traction power supply backflow monitoring device comprises a sensor main body and a base rotatingly arranged on the sensor main body, and a mounting bolt movably arranged on the base;

[0007] It also comprises:

[0008] A gear is arranged on the sensor main body and in the base.

[0009] A limiting mechanism is slidingly arranged in the base, and the mounting bolt can be extruded by the limiting mechanism.

[0010] An arc-shaped plate is arranged on the limiting mechanism, and the arc-shaped plate clamps and fixes the angle of the gear.

[0011] As a further optimization scheme of the utility model, mounting holes are formed on both sides of the base, the mounting bolt is embedded in the mounting hole, and a receiving cavity is formed in the base.

[0012] As a further optimization scheme of the utility model, the limiting mechanism comprises a sliding seat, the sliding seat is arranged in the accommodating cavity, a slide rod is arranged on the sliding seat and slides, the slide rod penetrates the side wall of the accommodating cavity and extends into the mounting hole, a spring is sleeved on the slide rod, and one end of the slide rod is provided with a round head.

[0013] As a further optimization scheme of the utility model, the arc-shaped plate is arranged at the other end of the slide rod, the two ends of the spring are connected with the arc-shaped plate and the sliding seat respectively, and a plurality of tooth protrusions are arranged on the inner side of the arc-shaped plate.

[0014] As a further optimization scheme of the utility model, a vertical rod is arranged at the lower end of the sensor main body, the vertical rod penetrates the top wall of the base, and the gear is connected with the sensor main body through the vertical rod.

[0015] As a further optimization scheme of the utility model, the tooth protrusions can be embedded in the gear teeth.

[0016] The utility model has the advantages of:

[0017] Different from the prior art, in the actual use process, when the mounting bolt is tightened, the tooth protrusions on the arc-shaped plate can be embedded in the gear teeth through the action of the limiting mechanism, the angle of the sensor main body relative to the base is fixed, the angle of the sensor main body is fixed at the same time when the base is fixed, different cable directions can be adapted to, the cable direction does not need to be completely consistent with the sensor indicating direction, the existing installation difficulty problem is effectively solved, and the installation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the base local section structure schematic diagram of the utility model;

[0020] Figure 3 It is the utility model Figure 2 It is the enlarged structure schematic diagram of A place in the utility model;

[0021] Figure 4 It is the limiting mechanism structure schematic diagram of the utility model.

[0022] In the drawing: 1, sensor main body; 2, base; 21, mounting hole; 22, accommodating cavity; 3, mounting bolt; 4, limiting mechanism; 41, slide rod; 42, spring; 43, sliding seat; 5, gear; 51, vertical rod; 6, arc-shaped plate; 61, tooth protrusion. DETAILED DESCRIPTION

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example 1

[0025] like Figure 1 - Figure 4 As shown, the traction power supply return current monitoring device includes a sensor body 1 and a base 2 rotatably mounted on the sensor body 1, with mounting bolts 3 movably mounted on the base 2;

[0026] It also includes:

[0027] Gear 5 is mounted on sensor body 1 and inside base 2;

[0028] The limiting mechanism 4 is slidably disposed within the base 2, and the mounting bolt 3 can be pressed against the limiting mechanism 4.

[0029] The arc-shaped plate 6 is mounted on the limiting mechanism 4. The arc-shaped plate 6 clamps the gear 5 and fixes the angle of the gear 5.

[0030] The base 2 has mounting holes 21 on both sides, and mounting bolts 3 are embedded in the mounting holes 21. The base 2 has a receiving cavity 22 inside, and the base 2 is installed by mounting bolts 3 and mounting holes 21.

[0031] The limiting mechanism 4 includes a sliding seat 43, which is disposed in the receiving cavity 22. A sliding rod 41 is slidably disposed on the sliding seat 43. The sliding rod 41 passes through the side wall of the receiving cavity 22 and extends into the mounting hole 21. A spring 42 is sleeved on the sliding rod 41. One end of the sliding rod 41 is rounded, which is convenient to be squeezed by the mounting bolt 3.

[0032] The arc plate 6 is set at the other end of the slide rod 41. The two ends of the spring 42 are connected to the arc plate 6 and the sliding seat 43 respectively. Multiple toothed protrusions 61 are opened on the inner side of the arc plate 6. The spring 42 provides a restoring force for the arc plate 6. After the mounting bolt 3 is separated from the base 2, the arc plate 6 is separated from the gear 5 immediately.

[0033] A support rod 51 is provided at the lower end of the sensor body 1. The support rod 51 passes through the top wall of the base 2. The gear 5 is connected to the sensor body 1 through the support rod 51. The support rod 51 provides a rotating component for the rotation of the sensor body 1 relative to the base 2.

[0034] The tooth protrusions 61 can be embedded in the gear teeth of the gear 5, when the mounting bolt 3 extrudes the slide rod 41, the arc-shaped plate 6 can be moved, the tooth protrusions 61 can be embedded in the gear teeth of the gear 5, thereby clamping the gear 5, and fixing the angle of the gear 5.

[0035] It should be noted that the working principle of the traction power supply backflow monitoring device is as follows: the sensor body 1 is connected with the base 2 through the rotating stand rod 51 arranged on the base 2, the mounting holes 21 are arranged on the two sides of the base 2, the mounting bolt 3 is embedded in the mounting holes 21, the limiting mechanism 4 is arranged in the accommodating cavity 22 in the base 2, the limiting mechanism 4 comprises a sliding seat 43, the slide rod 41 is slidably arranged on the sliding seat 43, the slide rod 41 extends through the side wall of the accommodating cavity 22 to the mounting hole 21, and the spring 42 is sleeved on the slide rod 41, and one end is a round head, when the mounting bolt 3 is installed, the mounting bolt 3 extrudes the round head end of the slide rod 41, so that the slide rod 41 slides on the sliding seat 43, and the arc-shaped plate 6 arranged at the other end of the slide rod 41 is moved, the plurality of tooth protrusions 61 on the inner side of the arc-shaped plate 6 are embedded in the gear teeth of the gear 5 arranged on the sensor body 1 and located in the base 2, thereby clamping the gear 5, fixing the angle of the gear 5, and fixing the angle of the sensor body 1 relative to the base 2; when the mounting bolt 3 is loosened, under the action of the spring 42, the slide rod 41 drives the arc-shaped plate 6 to reset, the tooth protrusions 61 are separated from the gear teeth of the gear 5, and at this time, the gear 5 can rotate, and the sensor body 1 can rotate relative to the base 2 to adjust the angle, so that the sensor body 1 is consistent with the cable.

[0036] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A traction power supply return current monitoring device comprising a sensor body (1) and a base (2) rotatably arranged on the sensor body (1), characterized in that: The base (2) is movably provided with a mounting bolt (3); Further comprising: A gear (5) is arranged on the sensor body (1), and the gear (5) is arranged in the base (2); A limiting mechanism (4) is slidably arranged in the base (2), and the mounting bolt (3) can be pressed with the limiting mechanism (4); An arc-shaped plate (6) is arranged on the limiting mechanism (4), the arc-shaped plate (6) clamps the gear (5) and fixes the angle of the gear (5).

2. A draw-off supply return flow monitoring device according to claim 1, characterised in that: The base (2) is provided with mounting holes (21) on both sides, the mounting bolt (3) is embedded in the mounting hole (21), and the base (2) is provided with a containing cavity (22).

3. A draw-off supply return flow monitoring device according to claim 2, characterised in that: The limiting mechanism (4) comprises a sliding seat (43), the sliding seat (43) is arranged in the containing cavity (22), a sliding rod (41) is slidably arranged on the sliding seat (43), the sliding rod (41) penetrates the side wall of the containing cavity (22) and extends into the mounting hole (21), a spring (42) is sleeved on the sliding rod (41), and one end of the sliding rod (41) is provided as a round head.

4. A draw-out supply back current monitoring device according to claim 3, wherein: The arc-shaped plate (6) is arranged at the other end of the sliding rod (41), the spring (42) is connected with the arc-shaped plate (6) and the sliding seat (43) at both ends, respectively, and a plurality of tooth protrusions (61) are arranged on the inner side of the arc-shaped plate (6).

5. The draw power backflow monitoring device of claim 1, wherein: The sensor body (1) is provided with a vertical rod (51) at the lower end, the vertical rod (51) penetrates the top wall of the base (2), and the gear (5) is connected with the sensor body (1) through the vertical rod (51).

6. The draw supply return flow monitoring device of claim 4, wherein: The tooth protrusions (61) can be embedded in the gear teeth of the gear (5).

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