Cooling fan operation monitoring device

Abstract

The utility model discloses a cooling fan operation monitoring device which comprises a base, and an intermediate relay, a sound-light alarm device, a control terminal and a rotating seat are arranged on the base. And the intermediate relay and the sound-light alarm device are connected with the control terminal. A rotating seat is mounted on the base, a vertical rotating shaft is arranged in the center of the rotating seat, a U-shaped support frame is sleeved on the vertical rotating shaft, the center of the bottom of the U-shaped support frame is matched with the rotating shaft, and a conical air duct is arranged between two long arms of the U-shaped support frame. And the conical air duct is limited by a positioning ring arranged between the two long arms of the U-shaped support frame. Two ends of the cone-type air duct are provided with holes. Tilting trigger units are arranged at the cylinder opening of the large-caliber end of the cone type air cylinder and the cylinder opening of the small-caliber end of the cone type air cylinder. The tilting trigger unit senses the running state of the cooling fan in real time, when the cooling fan stops running due to faults, sound-light alarm is given out in time, and production accidents caused by temperature rise due to the faults of the cooling fan can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cooling fan monitoring technical field, especially in a kind of cooling fan operation monitoring device. BACKGROUND

[0002] The large cooling fan monitoring for coal mine ventilation currently uses old-fashioned analog meter or monitors large cooling fan contactor auxiliary point on-off, to judge the cooling fan operating state.Working personnel must copy meter or check in the field regularly, there is certain security risk, cannot guarantee the safety of coal production. UTILITY MODEL CONTENTS

[0003] To solve the technical problem mentioned in the background art, the utility model provides a kind of cooling fan operation monitoring device.

[0004] The utility model adopts following technical scheme: a kind of cooling fan operation monitoring device, including base;Middle relay, audible and visual alarm device, control terminal and swivel seat are set on the base;The middle relay, audible and visual alarm device are electrically connected with control terminal;Swivel seat is installed on the base;Vertical pivot shaft is set in the center of the swivel seat;U-shaped support frame is set on the vertical pivot shaft;The bottom center of the U-shaped support frame is matched with pivot shaft;Tapered wind pipe is set between the two long arms of the U-shaped support frame;The tapered wind pipe is positioned by the positioning ring between the two long arms of U-shaped support frame;The tapered wind pipe both ends are holed;The barrel mouth of the large-diameter end of the tapered wind pipe is used to face the wind flow direction blown by cooling fan;The barrel mouth of the small-diameter end of the tapered wind pipe is provided with tilt trigger unit;

[0005] The tilt trigger unit includes horizontal pivot shaft;The horizontal pivot shaft both ends are supported in the barrel mouth of small-diameter end by fixed nut;Ball bearing is rotationally arranged in the center of the horizontal pivot shaft;Semicircular trigger plate is set in the bottom of the ball bearing;The plate surface of the semicircular trigger plate is installed tilt microswitch;The tilt microswitch is electrically connected with middle relay, audible and visual alarm device by wire.

[0006] Further, the upper portion of the base is connected to the swivel seat by shock-absorbing spring.

[0007] Further, the bottom of the base is provided with universal wheels.

[0008] Further, one side of the bottom transverse plate of the U-shaped support frame is provided with a horizontal traction arm;The end of the horizontal traction arm away from the U-shaped support frame is provided with a movable bolt;The base is uniformly provided with a plurality of insertion holes for cooperating with the movable bolt.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] The utility model discloses a cooling fan operation monitoring device, through the real -time response of the running state of cooling fan of tilting trigger unit, when cooling fan stops running because of the fault, timely sound -light alarm can be sent, can effectively avoid the production accident caused by the temperature rise of cooling fan fault. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the whole structure schematic diagram of cooling fan operation monitoring device of the utility model;

[0012] Fig. 2 It is the side view of track mine car magnetic force car stopper of the utility model.

[0013] Among them:

[0014] 1 - base, 2 - intermediate relay, 3 - audible and visual alarm device, 4 - control terminal, 5 - transfer seat, 6 - vertical pivot, 7 - U-shaped support frame, 8 - conical air duct, 9 - positioning ring, 10 - horizontal pivot, 11 - fixed nut, 12 - ball bearing, 13 - semicircular trigger plate, 14 - tilting micro switch, 15 - shock absorbing spring, 16 - universal wheel, 17 - horizontal traction arm, 18 - movable bolt. DETAILED DESCRIPTION

[0015] Below, in order to facilitate the person skilled in the art to understand the utility model technical scheme, now refer to the further explanation of attached drawing. It should be understood that these descriptions are only exemplary, and not to limit the scope of the utility model.

[0016] In the following detailed description, for the convenience of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the utility model. However, obviously, one or more embodiments can also be implemented without these specific details. In addition, in the following description, the description of well-known structures and techniques is omitted to avoid unnecessary confusion of the concept of the utility model.

[0017] Please refer to Figs. 1-2The utility model relates to cooling fan operation monitoring devices, including base 1, base 1 is provided with intermediate relay 2, audible -visual alarm device 3, control terminal 4 and rotating seat 5. Intermediate relay 2, audible -visual alarm device 3 are electrically connected with control terminal 4. Base 1 installs rotating seat 5. When the specific implementation, the top of base 1 is connected rotating seat 5 through damping spring 15. Rotating seat 5 is provided with vertical pivot 6 in the center, and U-shaped support frame 7 is set on vertical pivot 6, and the bottom center of U-shaped support frame 7 is matched with vertical pivot 6. The both long arms of U-shaped support frame 7 are provided with conical wind pipe 8, and conical wind pipe 8 is limited by the positioning ring 9 arranged between the both long arms of U-shaped support frame 7. Conical wind pipe 8 both ends are holed, and the barrel mouth of the large aperture end of conical wind pipe 8 is used to face the wind flow direction of the cooling fan blowing out;The barrel mouth of the small aperture of conical wind pipe 8 sets up and inclines the trigger unit.

[0018] Inclination trigger unit includes horizontal pivot 10, and both ends of horizontal pivot 10 are erected in the small aperture barrel mouth of conical wind pipe 8 by fixed nut 11 and are close to the top. Ball bearing 12 is rotatably arranged in the center of horizontal pivot 10, semicircular trigger plate 13 is arranged at the bottom of ball bearing 12, and the plate surface of semicircular trigger plate 13 is installed tilt microswitch 14, and tilt microswitch 14 is electrically connected with intermediate relay 2 and audible -visual alarm device 3 through wire.

[0019] In some embodiments, the bottom of base 1 is provided with universal wheel 16, which facilitates the overall movement of the monitoring device.

[0020] In addition, in some embodiments, one side of the bottom transverse plate of U-shaped support frame 7 is provided with horizontal traction arm 17, and the end of horizontal traction arm 17 away from U-shaped support frame 7 is provided with movable bolt 18, and base 1 is uniformly provided with a plurality of insertion holes for cooperating with movable bolt 18. In specific implementation, the plurality of insertion holes are uniformly distributed on the walking track of movable bolt 18 when horizontal traction arm 17 rotates around vertical pivot 6. When the angle of conical wind pipe 8 needs to be adjusted according to the wind flow direction of cooling fan, adjust horizontal traction arm 17, and align and insert movable bolt 18 with the insertion hole at the corresponding position to complete the angle adjustment once.

[0021] In practical application, the device is fixed in front of a large cooling fan, when the cooling fan is running normally, the air flow through the conical air duct 8 acts on the semicircular trigger plate 13, due to the action of the wind, the semicircular trigger plate 13 rotates around the horizontal rotating shaft 10 through the ball bearing 12, so that the semicircular trigger plate 13 is inclined to the horizontal plane, at this time, the tilt micro switch 14 arranged on the semicircular trigger plate 13 remains in an open state. When the cooling fan stops running, the semicircular trigger plate 13 loses the action of the wind, and finally remains in a state perpendicular to the horizontal plane under the action of gravity, at this time, the tilt micro switch 14 is closed, and the intermediate relay 2 is actuated through electrical connection, and the audible and visual alarm device 9 is started to send an audible and visual alarm signal of the cooling fan stop.

[0022] In summary, the cooling fan operation monitoring device designed by the utility model can timely send an audible and visual alarm when the cooling fan stops running due to failure, and can effectively avoid production accidents caused by temperature rise due to cooling fan failure.

[0023] The above embodiments only describe the preferred embodiments of the utility model, and do not limit the scope of the utility model, and various modifications and improvements of the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A cooling fan operation monitoring device characterized by comprising: It includes base (1), the base (1) is provided with intermediate relay (2), audible and light alarm device (3), control terminal (4) and transfer seat (5), intermediate relay (2), audible and light alarm device (3) and control terminal (4) are electrically connected, the base (1) is installed transfer seat (5), the transfer seat (5) is provided with vertical pivot (6) in the center, the vertical pivot (6) is sleeved with U-shaped support frame (7), the bottom center of U-shaped support frame (7) is matched with vertical pivot (6), the two long arms of U-shaped support frame (7) are provided with conical air duct (8), the conical air duct (8) is limited by the positioning ring (9) between the two long arms of U-shaped support frame (7), the conical air duct (8) is provided with hole in both ends, the barrel mouth of the large-diameter end of conical air duct (8) is used to face the wind flow direction of the cooling fan blowing, the barrel mouth of the small-diameter end of conical air duct (8) is provided with tilt trigger unit, The tilt trigger unit includes horizontal pivot (10), the two ends of horizontal pivot (10) are erected on the small-diameter barrel mouth of conical air duct (8) by fixed nut (11), the horizontal pivot (10) is rotationally provided with ball bearing (12) in the center, the bottom of ball bearing (12) is provided with semicircular trigger plate (13), the board surface of semicircular trigger plate (13) is installed tilt microswitch (14), the tilt microswitch (14) is electrically connected with intermediate relay (2), audible and light alarm device (3) by wire.

2. The cooling fan operation monitoring apparatus according to claim 1, characterized by The top of base (1) is connected with transfer seat (5) through damping spring (15).

3. The cooling fan operation monitoring apparatus according to claim 2, wherein The bottom of base (1) is provided with universal wheel (16).

4. The cooling fan operation monitoring apparatus according to claim 3, wherein One side of the bottom transverse plate of U-shaped support frame (7) is provided with horizontal traction arm (17), the end of horizontal traction arm (17) away from U-shaped support frame (7) is provided with movable bolt (18), the base (1) is uniformly provided with several insertion holes for cooperating with movable bolt (18).

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