CN208844514U - A kind of gate hoist - Google Patents

Abstract

The utility model discloses a kind of gate hoists, including oil cylinder；The piston rod of oil cylinder is connect with gate；Oil cylinder oil discharge outlet is connected to oil return box；The oil cylinder oil inlet mouth is connected to the hydraulic pump being set in the oil return box；The motor of hydraulic pump is connect by electrothermal relay with the contact of start and stop relay KM；The contact of one end of start and stop relay KM is connected with the contact of one end three of fuse FU, and another tip node of fuse FU is connect with the contact of air switch QS；The contact of the start and stop relay KM other end is connect with AC power source；The coil of start and stop relay connects；Three contacts of air-break circuit-breaker QS meet 380V AC power source three-phase L1, L2, L3.Coil one end of start and stop relay KM connects the end 220V AC power source L after control loop；Another termination 220V AC power source N-terminal of the coil of start and stop relay.The utility model structure is simple, and control is reliable, and the fast opening and closing of gate may be implemented, so as to effectively prevent unit to fly ease.

Description

A kind of gate hoist

Technical field

The utility model relates to a kind of gate hoists.

Background technique

In small hydraulic project or hydroelectric project especially flume, it is typically provided with small-sized gate, this gate is generally adopted It is opened with wheel disc, user is extremely time-consuming and laborious when operating, and easily causes wheel disc operating stick card due to corrosion etc. Dead deformation, can not closed shutter.And the gate of hydraulic engineering, hydroelectric project generally closes the temporal requirement of door, if not It can be before the deadline by closing gate, it will different degrees of damage is generated to power station unit equipment or hydraulic facility, especially It is will to generate substantial spoilage to the unit equipment in power station, even results in unit and flies ease, the serious accidents such as water logging workshop.

Summary of the invention

Technical problem to be solved in the utility model is, in view of the shortcomings of the prior art, a kind of gate hoist is provided, it is real Existing gate opens and closes automatically, and prevents unit from flying ease.

A kind of in order to solve the above technical problems, the technical scheme adopted by the utility model is: gate hoist, including oil Cylinder；The piston rod of the oil cylinder is connect with gate；The oil cylinder oil discharge outlet is connected to oil return box；The oil cylinder oil inlet mouth and setting In the hydraulic pump connection in the oil return box；The motor of the hydraulic pump passes through three main touchings of electrothermal relay and start and stop relay Point connection；Three main contacts of the start and stop relay are connected with three contacts of the one end fuse FU；Fuse FU's is another The contact correspondence of one end three is connect with three contacts of air-break circuit-breaker QS；Three contacts of the air-break circuit-breaker QS meet 380V AC power source three-phase L1, L2, L3.

Oil cylinder oil discharge outlet position is provided with second close to switch J2；Oil cylinder oil inlet mouth position is provided with first and connects Nearly switch J1；Described first close to switch J1, second approach switch J2 respectively with reach a coil of termination of pumping relay K01, Close the coil connection of termination of pumping relay K02 in place.

The hydraulic pump is connected to by shut-off valve with pressure release electromagnetic valve.

The coil contact of the start and stop relay KM pass sequentially through the contact of manual termination of pumping relay K3, reach a termination of pumping after The contact of electric appliance K01, emergency stop switch SB1 are connect with the AC power source L phase (220V AC power source is divided into L phase and N phase)；It is described The coil of start and stop relay KM is in parallel with pump button SB2 is opened manually；The coil and throttle valve relay of the start and stop relay KM A pair of contact of K1 is in parallel；The coil of the throttle valve electric appliance is connect with the first switching switch S1；The first switching switch S1 The contact of connection remote control switch output end barrier gate door relay K2 is connect with the pressure release electromagnetic valve YV1.

Second contact of termination of pumping relay K01 of reaching is connect with two indicator lights in parallel.

Compared with prior art, have the beneficial effect that the utility model structure is simple possessed by the utility model, control can It leans on, the fast opening and closing of gate may be implemented, so as to effectively prevent unit to fly ease.

Detailed description of the invention

Fig. 1 is the utility model embodiment structural schematic diagram；

Fig. 2 is the utility model embodiment gate portion structure chart；

Fig. 3 is the utility model Oil pump electrical machinery circuit connection diagram；

Fig. 4 is the utility model embodiment electric control schematic diagram；Wherein (A) is electric control schematic diagram first part；It (B) is automatically controlled Schematic diagram second part；It (C) is electric control schematic diagram Part III.

Specific embodiment

As shown in Figure 1-Figure 3, the utility model using hydraulic cylinder be vertically moved up or down gate, hydraulic cylinder stroke length according to Actual environment determines that oil cylinder is equipped with open and close in place close to switch, and indicator light is located at field control case simultaneously respectively in place for opening and closing And on control room Wireless remote control case panel.It is a set of that 5000m Two-way Feedback wireless remote controller is equipped in field control case, And one piece of 220V AC adapter output 24V DC voltage supply battery group, pressure release electromagnetic valve, control loop element and instruction Lamp.

Hydraulic power unit is a Men Yizhan, and Electric Machine at Pumping Station is exchange 380V, and pressure release electromagnetic valve is controlled using direct current 24V power supply, Oil return box 100L.Oil pump start-stop is by relay KM(, that is, start and stop relay) control.Oil pump electrical machinery is using electrothermal relay FR, fusing Device FU duplicate protection (as shown in Figure 3).It is at low cost, it is reliable for operation.

This pumping plant is gone up and down equipped with double acting power cylinder, and control mode is field control and Central Control Room wireless remote control.

As shown in figure 4, gate, which rises, presses "ON" S1 or SB2 button, oil pump master at the scene with push-botton operation at control cabinet Relay KM movement in circuit, makes Oil pump electrical machinery work, gate raising, after gate is raised to position, stroke conduit locating piece to lock Door standard-sized sheet is close to after switch J1, the K01 actuating of relay, Oil pump electrical machinery major loop relay KM coil losing electricity, stops Oil pump electrical machinery, Position (gate standard-sized sheet) H1 indicator light is reached to light.

When closing gate, "Off" S2 button, relay K2 movement are pressed, so that pressure release electromagnetic valve YV1 is made to open pressure release, this When Oil pump electrical machinery no power, by gate and the own wt quick closedown gate of clump weight, after door-closing in-place, stroke conduit is fixed Position block is closed to gate close to after switch J2 entirely, the K02 actuating of relay, is closed (gate closes entirely) H2 indicator light in place and is lighted finger.

When Central Control Room wireless remote control mode, wireless remote control, which transmits, gives pumping plant control cabinet receiver, and control cabinet receives distant Same as field control principle plays closing gate after control command signal.

When losing AC power source, by battery group provide closed shutter when control power supply, can distant place Central Control Room it is wireless Remote control opens pressure relief valve, makes gate Rapid door closer.

Closing gate can also be played by the purely manual operation in scene: opening pressure relief valve manually, make gate Rapid door closer.Gate Rise when rising, pressure relief valve be turned off manually, using manual oil pressing rod buy oil pressure, make gate raising, gate raising in place after, stopping It suppresses manually.

Claims (5)

1. a kind of gate hoist, which is characterized in that including oil cylinder；The piston rod of the oil cylinder is connect with gate；The oil cylinder Oil discharge outlet is connected to oil return box；The oil cylinder oil inlet mouth is connected to the hydraulic pump being set in the oil return box；The hydraulic pump Motor connect with three main contacts of start and stop relay by electrothermal relay；Three main contacts of the start and stop relay and molten Three contacts of disconnected one end device FU are connected；Corresponding three touchings with air-break circuit-breaker QS of three contacts of the other end of fuse FU Point connection；Three contacts of the air-break circuit-breaker QS meet 380V AC power source three-phase L1, L2, L3.

2. gate hoist according to claim 1, which is characterized in that oil cylinder oil discharge outlet position is provided with second and connects Nearly switch J2；Oil cylinder oil inlet mouth position is provided with first close to switch J1；Described first close switch J1, second, which approach, to open J2 is closed to connect with the coil for reaching a coil of termination of pumping relay K01, closing termination of pumping relay K02 in place respectively.

3. gate hoist according to claim 2, which is characterized in that the hydraulic pump passes through shut-off valve and pressure release electromagnetism Valve connection.

4. gate hoist according to claim 3, which is characterized in that the coil contact of the start and stop relay KM is successively By the contact of manual termination of pumping relay K3, reach a contact of termination of pumping relay K01, emergency stop switch SB1 and the alternating current Source L is connected；The coil of the start and stop relay KM is in parallel with pump button SB2 is opened manually；The coil of the start and stop relay KM It is in parallel with a pair of contact of throttle valve relay K1；The coil of the throttle valve electric appliance is connect with the first switching switch S1；It is described The contact of first switching switch S1 connection remote control switch output end barrier gate door relay K2 is connect with the pressure release electromagnetic valve YV1.

5. gate hoist according to claim 4, which is characterized in that described to reach the second of a termination of pumping relay K01 Contact is connect with two indicator lights in parallel.