Device for automatically alarming and stopping when people exist on travelling crane rail

Abstract

The utility model belongs to the technical field of automatic control, and particularly relates to a driving track manned automatic alarm and parking device, which comprises an air switch, a switching power supply, an intermediate relay, an audible and visual alarm and a radar sensor, the air switch is electrically connected with the switching power supply, one end of the switching power supply is electrically connected with a normally open contact of the intermediate relay, and the other end of the switching power supply is electrically connected with the audible and visual alarm. A normally open contact of the intermediate relay is electrically connected with the audible and visual alarm, the audible and visual alarm is electrically connected with the other end of the switching power supply, one end of the switching power supply is electrically connected with a normally open contact of the radar sensor, and the normally open contact of the radar sensor is electrically connected with a coil of the intermediate relay. A coil of the intermediate relay is electrically connected with the other end of the switching power supply, and two ends of the switching power supply are connected with radar sensors in parallel. According to the utility model, the accident safety condition occurring in the running process of the travelling crane is solved, the personal injury accident of operators is avoided, and the powerful guarantee is provided for safe production and stable running of enterprises.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the automatic control technical field, concretely relates to a travelling crane track automatic alarm and parking device with people. BACKGROUND

[0002] The travelling crane includes the bridge crane, the gantry crane and the electric hoist and so on electromechanical device on the track operation. In the travelling crane trolley operation process, if the person stays or works on the track, the travelling crane driver can not find this unsafe state in time due to the visual blind area influence or negligence and so on. In addition, the personnel on the track can not find the travelling crane operation and avoid in time due to negligence, or because the place is narrow and has no place to hide, thus extremely easily causing the major accident of personnel casualty. Similarly, the extrusion and impact of the crane to the human body in operation are one of the common dangerous factors. In addition, the improper operation of the crane, the brake failure, the track fatigue fracture and so on can all lead to serious accidents. CONTENT

[0003] In view of the above technical problem of the major safety hidden danger of the travelling crane operation, the utility model provides a travelling crane track automatic alarm and parking device with people with high safety, convenient to use and high efficiency.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme that:

[0005] A travelling crane track automatic alarm and parking device with people, including air switch, switch power supply, intermediate relay, sound light alarm, radar sensor, the air switch is electrically connected with switch power supply, one end of the switch power supply is electrically connected with the normally open contact of intermediate relay, the normally open contact of intermediate relay is electrically connected with sound light alarm, sound light alarm is electrically connected with the other end of switch power supply, one end of switch power supply is electrically connected with the normally open contact of radar sensor, the normally open contact of radar sensor is electrically connected with the coil of intermediate relay, the coil of intermediate relay is electrically connected with the other end of switch power supply, the both ends of switch power supply are connected in parallel with radar sensor.

[0006] Still including time relay, the coil of intermediate relay is connected in parallel with the coil of time relay.

[0007] Still including first button switch, second button switch, travelling crane main contactor, auxiliary contact, first limit switch, second limit switch, third limit switch, the first button switch is electrically connected with one end of switch power supply, the auxiliary contact is electrically connected with first button switch, the second button switch is electrically connected with auxiliary contact.

[0008] The first limit switch is electrically connected with the second button switch, the second limit switch is electrically connected with the first limit switch, and the third limit switch is electrically connected with the second limit switch.

[0009] The normally open contact of the time relay is electrically connected with the third limit switch, and the coil of the main contactor of the travel car is electrically connected with the normally open contact of the time relay.

[0010] The coil of the main contactor of the travel car is electrically connected at the other end of the switching power supply, and the normally open contact of the contactor is connected in parallel at two ends of the first button switch.

[0011] The switching power supply is electrically connected on the 220V alternating power supply through the air switch.

[0012] The first button switch is a normally open contact, and the second button switch, the auxiliary contact, the first limit switch, the second limit switch and the third limit switch are normally closed contacts.

[0013] Compared with the prior art, the utility model has the beneficial effect that:

[0014] The utility model will not affect the normal start of the travel car, the stop operation, and will not involve various protection performances of the travel car, and only takes an emergency parking alarm braking system for finding people on the track in the travel car running process, solves the unexpected safety condition in the travel car running process, avoids the occurrence of personal injury accidents of operating personnel, provides powerful guarantee for enterprise safety production and stable operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawings without creating labor.

[0016] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that the utility model can be implemented, so they do not have the substantial meaning of technology, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effect and purpose that the utility model can produce, should still fall within the range that the technical content disclosed by the utility model can cover.

[0017] Figure 1 The circuit diagram of the utility model;

[0018] Figure 2The utility model discloses a circuit diagram of switch.

[0019] Among them, Q1 is air switch, BT is switching power supply, KA1 is intermediate relay, HD is audible and light alarm, RD is radar sensor, KT is time relay, SB1 is first button switch, SB2 is second button switch, KM is main contactor of travelling crane, HA is auxiliary contact, GL1 is first limit switch, GL2 is second limit switch, GL3 is third limit switch. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the application, not all the embodiments, and these descriptions are only for further illustrating the features and advantages of the utility model, not for limiting the claims of the utility model; based on the embodiments in the application, all other embodiments obtained by the person skilled in the art without creative work are within the protection scope of the application.

[0021] The specific embodiments of the utility model will be further described in detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0022] The terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0024] A travelling crane track automatic alarm and parking device, like Figure 1As shown, it includes air switch Q1, switching power supply BT, intermediate relay KA1, sound and light alarm HD, radar sensor RD, time relay KT, first push button switch SB1, second push button switch SB2, contactor KM, auxiliary contact HA, first limit switch GL1, second limit switch GL2, and third limit switch GL3. When the air switch Q1 of the device is energized, it enters the running state. If the driving trolley runs on the track within the set length range of 5-10 meters, when the radar sensor RD detects a person or other object on the track, the normally open contact of the radar sensor RD is closed, the coil of the intermediate relay KA1 is energized, the coil of the time relay KT is energized, and the normally open contact of the intermediate relay KA1 is closed. Closed, HD is energized to send out sound and light alarm signals, attracting the attention of personnel and driving drivers and prompting them to take measures. The time relay KT delays opening and the normally closed contact is disconnected within 1-2S, the coil of the driving main contactor KM loses power, the normally open contact of the driving main contactor KM is disconnected, the driving vehicle stops due to power failure and brakes automatically, the personnel leave the track, and the radar sensor RD does not detect that there are people or objects staying. The normally open contact of the radar sensor RD is disconnected, the coil of the intermediate relay KA1 and the time relay KT loses power, the normally open contact of the intermediate relay KA1 is disconnected, the sound and light alarm HD loses power and no longer alarms, the time relay KT delays opening and the normally closed contact is closed, the driving main contactor KM can be restarted, and the driving vehicle is energized and operates normally.

[0025] Further, if Figure 2 As shown, when the first pushbutton switch SB1 is pressed, the auxiliary contact HA coil is energized, the contacts of the auxiliary contact HA close, the driving main contactor KM coil is energized, and the contacts of the driving main contactor KM close. At this time, the driving main contactor KM coil remains energized through its own auxiliary contacts, achieving a self-locking function. When the second pushbutton switch SB2 is pressed, the auxiliary contact HA coil is de-energized, the contacts of the auxiliary contact HA open, the driving main contactor KM coil is de-energized, and the normally open contacts of the driving main contactor KM open. At the same time, the time relay KT coil begins delay timing. The time relay KT begins delaying when the driving main contactor KM coil is energized. After the delay ends, the time relay KT coil is energized and the contacts of the time relay KT close. When the coil of the time relay KT is energized, the coils of the first limit switch GL1, the second limit switch GL2, and the third limit switch GL3 are energized, the contacts of the first limit switch GL1, the second limit switch GL2, and the third limit switch GL3 are closed, the coil of the driving main contactor KM is energized, and the normally open contacts of the driving main contactor KM are closed.

[0026] Only the preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of the ordinary skill in the art without departing from the purpose of the utility model, and various changes should be included in the protection range of the utility model.

Claims

1. A device for automatic manned alerting and stopping of a vehicle on a track, characterized in that: The utility model relates to an automatic radar sensor control system for vehicle, including air switch (Q1), switching power supply (BT), intermediate relay (KA1), sound light alarm (HD), radar sensor (RD), air switch (Q1) electric connection has switching power supply (BT), one end of switching power supply (BT) and intermediate relay (KA1) always open contact electric connection, intermediate relay (KA1) always open contact and sound light alarm (HD) electric connection, sound light alarm (HD) with switching power supply (BT) the other end electric connection, one end of switching power supply (BT) and radar sensor (RD) always open contact electric connection, radar sensor (RD) always open contact and intermediate relay (KA1) coil electric connection, intermediate relay (KA1) coil and switching power supply (BT) the other end electric connection, switching power supply (BT) both ends are connected in parallel with radar sensor (RD).

2. A device for automatic presence detection, alarm and stopping of a vehicle on a track according to claim 1, characterized in that: Still include time relay (KT), intermediate relay (KA1) coil is connected in parallel with time relay (KT) coil.

3. A device for automatic alarming and stopping a train track with a person according to claim 2, characterized in that: Still include first button switch (SB1), second button switch (SB2), running main contactor (KM), auxiliary contact (HA), first limit switch (GL1), second limit switch (GL2), third limit switch (GL3), first button switch (SB1) with switching power supply (BT) one end electric connection, auxiliary contact (HA) with first button switch (SB1) electric connection, second button switch (SB2) with auxiliary contact (HA) electric connection.

4. A device for automatic presence detection, alarm and stopping of a moving vehicle according to claim 3, characterized in that: First limit switch (GL1) with second button switch (SB2) electric connection, second limit switch (GL2) with first limit switch (GL1) electric connection, third limit switch (GL3) with second limit switch (GL2) electric connection.

5. A device for automatic alarming and stopping a train track with a person according to claim 3, characterized in that: Time relay (KT) always open contact with third limit switch (GL3) electric connection, running main contactor (KM) coil with time relay (KT) always open contact electric connection.

6. A device for automatic presence detection, alarm and stopping of a moving vehicle according to claim 5, characterized in that: Running main contactor (KM) coil electric connection in switching power supply (BT) the other end, contactor (KM) always open contact is connected in parallel in first button switch (SB1) both ends.

7. A device for automatic alarming and stopping of a train track with a person according to claim 1, characterized in that: Switching power supply (BT) is electrically connected on 220V AC power supply through air switch (Q1).

8. A device for automatic alarming and stopping a train track with a person according to claim 3, characterized in that: First button switch (SB1) is always open contact, second button switch (SB2), auxiliary contact (HA), first limit switch (GL1), second limit switch (GL2) and third limit switch (GL3) are normally closed contact.

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