CN109775497A - A kind of elevator counterweight experimental rig and method - Google Patents
A kind of elevator counterweight experimental rig and method Download PDFInfo
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- CN109775497A CN109775497A CN201910149771.XA CN201910149771A CN109775497A CN 109775497 A CN109775497 A CN 109775497A CN 201910149771 A CN201910149771 A CN 201910149771A CN 109775497 A CN109775497 A CN 109775497A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention discloses a kind of elevator counterweight experimental rig and methods, including controller and identical two small handcarts of structure, and one is denoted as test small handcart, and another is denoted as control small handcart；Water tank, water pump, weighing sensor and display screen are provided on small handcart；The water inlet of water pump is connected to water tank, and flow sensor is equipped at pump outlet, and water outlet is connected to one end of water pipe, and the other end can be connected to the water tank of another small handcart；Weighing sensor is arranged in water tank bottom；Water pump, flow sensor, weighing sensor and the display screen of two small handcarts are electrically connected between controller.Test small handcart, which is remotely controlled, by controller carries out related counterweight test.Whole process enters carriage without personnel, elevator burst shearing during test is avoided, the accidents such as ladder is slipped personnel is damaged, carrying counterweight back and forth without personnel can be realized automatic uniform load, shorten test period, labor intensity is reduced, the efficiency and safety of counterweight test are substantially increased.
Description
Technical field
The invention belongs to elevator technology fields, and in particular to a kind of elevator counterweight experimental rig and method.
Background technique
According to the regulation and requirement of relevant laws and regulations of the state, the installation and use of elevator require to test, elevator
It can just come into operation after examining qualification.According to " elevator surveillance inspection and periodic inspection rule-traction and pressure driving electricity
Ladder " (TSG T7001-2009) regulation, coefficient of balance test, limiter of speed-safety tongs linkage test, elevator speed test, under
The inspections projects such as row damped condition traction inspection, static traction inspection, retardation test are required to manual handling counterweight and carry out load
Detection, personnel labor intensity is big, and test period is long, especially 125% rated load downlink retardation test, need to be by manually from electricity
It is terraced outer to realize slow uniform load to counterweight is carried repeatedly in carriage, time and effort consuming, and since lift facility performance is not met
Related request is easy to appear traction steel-cable rope end and (combines) quilt with the rope end of taper sheath, Babbitt Metal during test
It pulls, carriage, counterweight crash into pit, and brake braking force deficiency causes to shear, slip ladder, and lift car metal structure deforms
Etc. accidents, to equipment and testing crew, there is a certain security risk.Secondly, counterweight is directly put together in carriage, it is easy
The surface of carriage will cause damage (such as the trim etc. for scratching elevator), therefore user and maintenance staff try load
Tested resentment, to elevator be difficult carry out load test.How to guarantee that equipment is not damaged and personnel safety
Under the premise of, efficiently, counterweight carrying is rapidly carried out, complete related counterweight test, is the most disaster encountered during current elevator is examined
Topic.
Summary of the invention
The purpose of the present invention is to provide a kind of elevator counterweight experimental rig and methods, solve existing elevator counterweight test and deposit
In equipment and personnel security risk, large labor intensity, the long technical problem of test period.
In order to solve the above-mentioned technical problem the present invention, adopts the following technical scheme that
A kind of elevator counterweight experimental rig, including controller and identical two small handcarts of structure, wherein one is denoted as examination
Small handcart is tested, another is denoted as control small handcart；
Water tank, water pump, weighing sensor and display screen are provided on the small handcart；Wherein, the water inlet and water of water pump
Case connection, flow sensor is equipped at pump outlet, and water outlet is connected to one end of water pipe, and the other end of water pipe can be with
The water-tank-detachable type connection of another small handcart；Weighing sensor is arranged in water tank bottom；Water pump, the flow of two small handcarts
Sensor, weighing sensor and display screen are electrically connected between controller.
Nominal load capacity, load factor, test small handcart and test water tank total weight are inputted by the keyboard on controller,
Automatically the volume for adding water needed for calculating, by water pump from control small handcart water tank to test small handcart water tank with water, water is pumped out
The mouth of a river is equipped with flow sensor, and needed for injection plus after the volume of water, controller controls water pump and stops water filling.It is remotely controlled by controller
Test small handcart enters lift car and carries out related counterweight test, is remotely controlled it after the test and exits elevator.
By that can shorten test period, reduce labor intensity toward the artificial frequently carrying counterweight of water tank fast water injection replacement,
Increase substantially test efficiency.If once carrying outside elevator and needing 5s in 25kg counterweight to lift car, 1250kg weight is carried
Code, needs to carry 50 times, needs 250s in total, counterweight is equally moved out elevator after the test and needs 250s, in total 500s, and
Then faster, selection Japanese fuji heavy industry 800W lift 5m flow 100000L/H diving axis is loaded toward water tank with water by water pump
Stream pump, flow rate conversion be 27.8L/s the second, carry 1250kg counterweight be equivalent to injection 1250L water, required time 45s, examination
Carriage is exited by wireless remotecontrol trolley after testing and needs 5s, in total 50s, time 450s is saved, test efficiency is mentioned
It is nearly 9 times high.In actual operation, test water tank and trolley self weight are 250kg, are equivalent to 250L water, the water body of required injection
Product is 1250-250=1000L, is reduced to 36s toward test water tank water filling required time, efficiency further increases.
This method is remotely controlled test small handcart by controller and enters the related counterweight test of lift car progress, after the test
It is remotely controlled it and exits elevator, compared with traditional artificial carrying counterweight, whole process enters carriage without personnel, avoids elevator during test
Burst shearing is slipped the accidents such as ladder and is damaged to personnel, and carrying counterweight back and forth without personnel can be realized automatic uniform load, adopts
It avoids counterweight from directly contacting friction with carriage with synthetic resin crawler belt, and stability is good, vibrated, impact during test can be prevented
Deng influence, water tank slides and topples from small handcart, damages to lift car bottom, substantially increases the effect of counterweight test
Rate and safety.
It being further improved, the water tank is made of transparent material, graduation mark, such as 10kg, 20kg are indicated on water tank,
30kg…….The tank size is designed as 700mm*1200mm*1200mm, can accommodate 1m3Water, in addition small handcart is self-possessed, always
Weight is 1250kg-1300kg, is the elevator of 800kg (10 people) and 1000kg (13 people) suitable for common nominal load capacity
Counterweight test.
Be further improved, be provided with motor on the small handcart, be arranged with synthetic resin crawler belt on the idler wheel of small handcart, motor with
It is electrically connected between controller, motor is started by controller, drive caterpillar drive, driving small handcart movement.Small handcart self weight
250kg-300kg, lifting capacity 1500kg-2000kg, size are designed using being able to enter lift car as criterion, and motor is logical
Cross the ups power power supply in crawler body rack.
It is further improved, the connector of the water pipe other end is provided with sealing component, the sealing component on the water tank
Including connecting tube, connecting tube is connected to water tank, and is fixed on tank upper cover plate, and connecting tube is located at the end outside water tank in convex
Mesa-shaped is arranged with sealing ring on boss, sealing cover is hinged in connecting tube, spring is provided between connecting tube and sealing cover.Note
When water, sealing cover is opened, the other end insertion test small handcart water inlet of small handcart charging pump water outlet connection water pipe will be controlled
Connecting tube.After water filling, it will control on the other end and test small handcart of the water pipe of small handcart charging pump water outlet connection
The end of water inlet connecting tube is detached from, then unde the action of the restoring force of the spring, sealing cover lid closes on boss, because being provided with sealing
Ring guarantees that water tank during the test will not leak.The water outlet of test water tank water pump is connect with water pipe, by test water tank
Water outlet is placed on the card slot of test water tank lid, and there is sealing screw thread in water pipe end, and being tightened with water pipe cover prevents leak.
It is further improved, is provided with control panel on the controller, be provided on control panel multiple electric with controller
The button and display screen of connection, the button be respectively small handcart the button that travels forward, backward movement buttons, move downward and press
Button moves right button, is pause/operation button, remote controler on/off button, the independent control model button of two small handcarts, two small
It is defeated that cart is uniformly controlled mode button, nominal load capacity input button, load factor input button, small handcart and water tank total weight
Enter button, the volume input button of water filling, flow sensor readings input button, automatic pump button, water pump to control manually
Button, the start button of water pump, the stop button of water pump and numeric keypad button processed；
The button display screen is respectively nominal load capacity LCD liquid crystal display screen, load factor LCD liquid crystal display screen, examination
Test small handcart and test water tank total weight LCD liquid crystal display screen, required plus water volume LCD liquid crystal display screen and pump capacity sensing
Device reads LCD liquid crystal display screen；
Wherein, the button that travels forward of small handcart, backward movement buttons, move downward button, move right button and temporarily
Stop/run the stopping of button and automatic pump button, water pump manual control button, the start button of water pump and water pump
There are two button is respectively provided with, the corresponding button of small handcart button corresponding with control small handcart is respectively tested；
Default small handcart is set as independent control model by controller.When press two small handcarts be uniformly controlled mode by
Button presses other control buttons of small handcart, then can issue the movement instruction to two small handcarts simultaneously.
It is further improved, the weighing sensor uses SWB505MultiMountTMPressure type Weighing module, maximum weighing
5kg-4.4t, water tank bottom are arranged altogether there are four Weighing module, and four Weighing modules are separately mounted to four angles of water tank bottom surface
On, and the lower bracket of Weighing module is bolted to connection with small handcart loading end；The top loading end of Weighing module with
The contact of water tank bottom surface, and be fixedly connected by the fixation otic placode at four angles of water tank with Weighing module top loading end.
It is further improved, the controller includes DSP embedded processor, clock circuit, reset circuit, relay driving
Circuit, button and numeric keypad circuit and LCD display circuit；
Wherein, the model ULN2003 of driving chip, LCD liquid crystal display screen model LCD1602 are character mode lcd
Screen；The chip model of dsp processor is TMS320F28335；
The dsp processor clock circuit generates 150MHz standard time clock, the clock with dsp processor using external crystal-controlled oscillation
Input pin XCLKIN connection, reset circuit generate pulse signal by reset switch, the reset pin XRS with dsp processor
Connection；
The signal input/output pin GPIO0 of dsp processor passes through the IN of photoelectrical coupler and driving chip ULN2003
Mouth connection, when GPIO0 exports high level, the phototriode in photoelectrical coupler is connected, and the IN mouth of ULN2003 receives height
Level, corresponding OUT port are just low level, and relay is attracted, and control water pump is started to work；Conversely, when GPIO0 output is low
When level, relay is disconnected, and control water pump stops working；
Meanwhile ULN2003COM foot being connected to the end VCC of relay, gone bail for using the backward dioded inside ULN2003
Relay is protected, the induced voltage generated when eliminating relay closure can control the biggish water pump of power and work；
Signal input/output pin GPIO1~GPIO4 of the dsp processor respectively with control small handcart fortune forward
Dynamic button, backward movement buttons move downward button, move right button connection, and the signal input/output of dsp processor is drawn
Foot GPIO5 is connect with pause/operation button of control small handcart, and the signal input/output pin GPIO6 of dsp processor~
GPIO9 respectively with test small handcart the button that travels forward, backward movement buttons, move downward button, move right button connect
It connects, the signal input/output pin GPIO10 of dsp processor is connect with pause/operation button of test small handcart, DSP processing
Signal input/output pin GPIO11, GPIO12 of device respectively with the independent control model button of two small handcarts, two small handcarts
Be uniformly controlled mode button connection, signal input/output pin GPIO13~GPIO17 of dsp processor respectively with payload ratings
Measure input button, load factor input button, small handcart and water tank total weight input button, the volume input button of water filling, stream
Quantity sensor read input button connection, signal input/output pin GPIO18~GPIO20 of dsp processor respectively with volume
Determine RS, RW, E foot connection of loading capacity LCD1602 liquid crystal display, the signal input/output pin GPIO21 of dsp processor
~GPIO28 is connect with LCD1602 data terminal D0~D7 respectively；The signal input/output pin GPIO29 of dsp processor~
GPIO39 is connect with RS, RW, E and D0 of load factor LCD liquid crystal display screen~D7 foot, the signal of dsp processor input/defeated
Out pin GPIO40~GPIO50 and test small handcart and test water tank total weight LCD liquid crystal display screen RS, RW, E and D0~
The connection of D7 foot, signal input/output pin GPIO51~GPIO61 of dsp processor and required plus water volume LCD liquid crystal display
RS, RW, E and D0 of screen~D7 foot connection, signal input/output pin GPIO62~GPIO72 pump capacity of dsp processor
RS, RW, E and D0 of sensor reading LCD liquid crystal display screen~D7 foot connection；
The flow sensor model Sai Shenger output of pulse signal water flow sensing unit SEN-HZ21WA, the signal of acquisition
It gives by A/D conversion chip ADS8345 to the multichannel buffer serial line interface (McBSP) of dsp processor；
Signal input/output pin GPIO73~GPIO79 of the dsp processor respectively with numeric keypad (0~9,
AC, 4 rows 3 column) the connection of row, column input terminal, the signal input/output pin GPIO80 of dsp processor and test water tank water pump
The connection of automatic control button, the signal input/output pin GPIO81 of dsp processor and manually controlling for test water tank water pump
Button connection, the signal input/output pin GPIO82 of dsp processor are connect with the start button of test water tank water pump, DSP
The signal input/output pin GPIO83 of processor is connect with the stop button of test water tank water pump, and the signal of dsp processor is defeated
Enter/output pin GPIO84 with control water tank water pump automatic control button connect, the signal input/output of dsp processor is drawn
Foot GPIO85 is connect with the manual control button of control water tank water pump, the signal input/output pin GPIO86 of dsp processor
It is connect with the start button of control water tank water pump, the signal input/output pin GPIO87 and control water tank water pump of dsp processor
Stop button connection.
Based on the method that above-mentioned elevator counterweight experimental rig tests elevator, include the following steps:
Step 1: test small handcart is pushed into elevator to be detected by corresponding button on push-button controller control panel
Carriage in, will control small handcart be placed in outside carriage；Wherein testing in the water tank of small handcart does not have water, controls the water tank of small handcart
In fill water；
Step 2: corresponding button on the control panel for passing through controller, the payload ratings of small handcart are tested in input respectively
Measure m1, load factor p, water tank and test small handcart self weight m2, controller is calculated according to following formula to be needed to push away to test is small
The volume V filled the water in the water tank of vehicle,
p*m1=m2+ρ*V (1)
V=(p*m1-m2)/ρ (2)
In formula, ρ is the density of water；By the volume input button of water filling, calculated V value is inputted；Then test small handcart
Nominal load capacity m1, load factor p, water tank and test small handcart self weight m2It is infused with needs into the water tank of test small handcart
The volume V of water is respectively displayed on corresponding display screen；
Step 3: by the water tank on the other end and test small handcart of the water pipe for controlling the connection of small handcart charging pump water outlet
Connection, by the start button of push-button controller control panel charging pump, the water pump controlled on small handcart is started to work, and will be controlled
In the water tank on water injection testing small handcart in small handcart upper water box, pump outlet is equipped with flow sensor, when reaching
After the volume V that need to be filled the water, controller controls water pump and stops water filling, and the water pipe that small handcart charging pump water outlet processed is connected is another
Water tank on one end and test small handcart is detached from；
Step 4: to test the self weight m of small handcart and water tank2, and the weight substitution counterweight of injection water, the progress of team's elevator
Coefficient of balance test, the test of limiter of speed-safety tongs linkage test, elevator speed, downlink damped condition traction inspection, static state are draged
Draw inspection and retardation test；
Step 5: exiting elevator by controller Control experiment small handcart after the test.
Be further improved, in the step 4, taking load factor p is 30%, 40%, 50% and 60%, i.e., with 30%,
40%, 50% and 60% nominal load capacity successively does coefficient of balance test to elevator, elevator speed is tested, and then loads
125% nominal load capacity does limiter of speed-safety tongs linkage test, downlink damped condition traction inspection, static traction inspection and system
Dynamic test.
It is further improved, in the step 5, our department's elevator after the test, is tested in the water tank of small handcart and filled
Water, controlling does not have water in the water tank of small handcart；When test corresponding to next elevator, test small handcart and control small handcart pair
It adjusts, using control small handcart as test small handcart, the counterweight test of next elevator is directly carried out, when can further save
Between, improve test efficiency.
Compared with prior art, beneficial effects of the present invention are as follows:
1), by replacing manually frequently carrying counterweight toward water tank fast water injection, test period can be shortened, reduce labour by force
Degree, increases substantially test efficiency: setting and once needs 5s in carrying 25kg counterweight to lift car outside elevator, carries 1250kg
Counterweight needs to carry 50 times, needs 250s in total, counterweight is equally moved out elevator after the test and needs 250s, in total 500s,
And then faster, selection Japanese fuji heavy industry 800W lift 5m flow 100000L/H diving is loaded toward water tank with water by water pump
Axial-flow pump, flow rate conversion be 27.8L/s the second, carry 1250kg counterweight be equivalent to injection 1250L water, required time 45s,
Carriage is exited by wireless remotecontrol trolley after the test and needs 5s, in total 50s, saves time 450s, by test efficiency
Improve nearly 9 times.In actual operation, test water tank and small handcart self weight are 250kg, are equivalent to 250L water, required injection
Water volume is 1250-250=1000L, is reduced to 36s toward test water tank water filling required time, efficiency further increases.
2), this method enters the related counterweight test of lift car progress by controller remote control test small handcart, tests knot
It is remotely controlled it after beam and exits elevator, compared with traditional artificial carrying counterweight, whole process enters carriage without personnel, during avoiding test
Elevator burst shearing is slipped the accidents such as ladder and is damaged to personnel, carries counterweight back and forth without personnel automatic uniform can be realized and add
It carries, avoids counterweight from directly contacting friction with carriage using synthetic resin crawler belt, and stability is good, can prevent vibrated during testing
Dynamic, impact etc. influences, and water tank slides and topples from small handcart, damages to lift car bottom, substantially increase counterweight
The efficiency and safety of test.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the invention patent.
Fig. 2 is the structure top view of small handcart.
Fig. 3 is structural schematic diagram of the water tank into (out) mouth of a river sealing component.
Fig. 4 is the control panel figure of controller.
Fig. 5 is controller system conceptual scheme.
Fig. 6 is the relay drive circuit figure of controller.
Fig. 7 is the circuit diagram of the numeric keypad of controller.
Fig. 8 is the LCD display circuit figure of controller.
Specific embodiment
To keep the purpose of the present invention and technical solution clearer, below in conjunction with the embodiment of the present invention to skill of the invention
Art scheme is clearly and completely described.
As shown in figures 1-8, a kind of elevator counterweight experimental rig, including test small handcart 1, control small handcart 2, control small push away
The water tank 3 of vehicle tests the water tank 4 (referred to as test water tank) of small handcart, water pump 5, weighing sensor 6, display screen 7 and control
Device 8.
Small handcart is driven using motor and synthetic resin crawler belt, has weighing sensor 6 on small handcart, complete vehicle weight is shown small
On display screen 7 near cart handrail.Nominal load capacity, load factor, test small handcart are inputted by the keyboard on controller 8
With test water tank total weight, the volume of water is added needed for calculating automatically, by water pump 5 from the water tank 3 of control small handcart to examination
The water filling of water tank 4 is tested, pump outlet is equipped with flow sensor, and needed for injection plus after the volume of water, controller 8, which controls water pump, to be stopped
Water filling.Test small handcart is remotely controlled by controller 8 and enters the related counterweight test of lift car progress, is remotely controlled it after the test and is moved back
Elevator out.
In the present embodiment, by the keyboard of controller 8, loading capacity m is inputted1, load factor p, water tank and test small push away
The self weight m of vehicle2, controller is calculated according to following formula needs the volume V that fills the water into the water tank of test small handcart,
p*m1=m2+ρ*V (1)
V=(p*m1-m2)/ρ (2)
In formula, ρ is that the density of water inputs calculated V value by the volume input button of water filling；Then test small handcart
Nominal load capacity m1, load factor p, water tank and test small handcart self weight m2It is infused with needs into the water tank of test small handcart
The volume V of water is respectively displayed on corresponding display screen.
In the present embodiment, coefficient of balance test, the test of limiter of speed-safety tongs linkage test, elevator speed, descending system
The counterweights tests such as condition of starting building traction inspection, static traction inspection, retardation test are carried out according to the ascending sequence of load factor:
30%, 40%, 50% is first loaded, 60% nominal load capacity does coefficient of balance test, elevator speed test, then loads 125%
Nominal load capacity does limiter of speed-safety tongs linkage test, downlink damped condition traction inspection, static traction inspection, braking examination
It tests.
In the present embodiment, test small handcart and control small handcart are symmetrical structure, and test water tank and the bottom of storage tank are equal
One water pump is set, first presses 30%, 40%, 50%, 60% from water tank toward test water tank, 125% water filling, test water tank fills
After water, next time, test filled the water in turn using water tank as test water tank, using control small handcart as test small handcart, directly
The counterweight test for carrying out next elevator, can further save the time, improve test efficiency.
In the present embodiment, the water pump 5 selects Japanese fuji heavy industry 800W lift 5m flow 100000L/H diving axis
Stream pump, water outlet caliber are 110mm, are powered using ups power to water pump, and ups power is arranged in crawler body rack.
In the present embodiment, the water pump 5 is used to fill the water from water tank 3 to test water tank 4, and from examination when test next time
Water tank 4 to be tested to fill the water to water tank 3, the pump outlet of the bottom of storage tank is connect with water pipe, and water pipe passes through the water outlet of water tank,
Into the water inlet of test water tank, test water tank bottom is extended to；The water outlet of test water tank water pump is connect with water pipe, by examination
The water outlet for testing water tank is placed on the card slot 18 of test water tank lid, and there is sealing screw thread in water pipe end, is tightened with water pipe cover
Prevent leak.
In the present embodiment, the test water tank and water tank use high-strength transparence plastics, can be seen that in case from the outside
Water surface elevation, outside have weight tag line (such as 10kg, 20kg, 30kg ...).
In the present embodiment, as shown in figure 3, being provided with sealing component with the connector of the water pipe other end on the water tank,
The sealing component includes connecting tube, and connecting tube is connected to water tank, and is fixed on tank upper cover plate, and connecting tube is located at outside water tank
The end in portion is in boss-shaped 22, is arranged with sealing ring on boss, is hinged with sealing cover 19 in connecting tube, connecting tube and sealing cover it
Between be provided with spring 20 and telescopic rod 21.When water filling, sealing cover is opened, telescopic rod 21 plays a supporting role to sealing cover 19, so
The connecting tube of the other end insertion test small handcart water inlet of small handcart charging pump water outlet connection water pipe will be controlled afterwards.Water filling knot
Shu Hou will control the end of water inlet connecting tube on the other end and test small handcart of the water pipe of small handcart charging pump water outlet connection
Head is detached from, then unde the action of the restoring force of the spring, sealing cover lid closes on boss, because being provided with sealing ring, guarantees that water tank is trying
It will not leak during testing.The water outlet of test water tank water pump is connect with water pipe, by the water outlet of test water tank, is placed on examination
It tests on the card slot of water tank lid, there is sealing screw thread in water pipe end, and being tightened with water pipe cover prevents leak.In the present embodiment, described
Small handcart is driven using motor and synthetic resin crawler belt, and be self-possessed 250kg-300kg, lifting capacity 1500kg-2000kg, and size is with can
It is designed into lift car for criterion, motor passes through the ups power power supply in crawler body rack.
In the present embodiment, the tank size is designed as 700mm*1200mm*1200mm, can accommodate 1m3 water, in addition
Small handcart self weight, total weight 1250kg-1300kg are 800kg (10 people) and 1000kg suitable for common nominal load capacity
The elevator counterweight of (13 people) is tested.
In the present embodiment, the weighing sensor uses SWB505MultiMountTMPressure type Weighing module, maximum weighing
5kg-4.4t, 4 Weighing modules are mounted on 4 angles of water tank bottom surface, and module lower bracket and small handcart loading end pass through spiral shell
Bolt is fixedly connected, and module top loading end is contacted with four angles of water tank bottom surface, passes through the fixed ear and module at four angles of water tank
Top loading end is fixedly connected, and after Weighing module weighs up the weight of water tank, in addition small handcart is self-possessed, complete vehicle weight is shown small
On LED display near cart handrail.
In the present embodiment, controller panel is as shown in Figure 4, comprising: 23,24,25,26 be respectively control small handcart to
Preceding movement buttons, backward movement buttons move downward button, move right button, and 27 be the pause/operation for controlling small handcart
Button, 28,29,30,31 be respectively test small handcart the button that travels forward, backward movement buttons, move downward button, to the right
Movement buttons, 32 be the pause/operation button for testing small handcart, and 33 be remote controler on/off button, and 34 is independent for two small handcarts
Control model button, system default are independent control model, and 35 are uniformly controlled mode button for two small handcarts, are pressed under this mode
It controls small handcart or tests some movement buttons of small handcart, while issuing the movement instruction to two small handcarts.
36 be nominal load capacity input button, and 37 be load factor input button, and 38 be test small handcart and test water tank
Total weight input button, 39 add the volume input button of water for needed for, and 40 be pump capacity sensor reading input button, and 41 are
Nominal load capacity LCD liquid crystal display screen (unit kg), 42 be load factor LCD liquid crystal display screen (unit %), and 43 be examination
Small handcart and test water tank total weight LCD liquid crystal display screen (unit kg) are tested, 44 be required plus water volume LCD liquid crystal display screen
(unit L), 45 be pump capacity sensor reading LCD liquid crystal display screen (unit L).
46 be the automatic control button of test water tank water pump, and 47 be the manual control button of test water tank water pump, and 48 be examination
Test the start button of water tank water pump, 49 be the stop button of test water tank water pump, and 50 be that the automatic control of control water tank water pump is pressed
Button, 51 be the manual control button for controlling water tank water pump, and 52 be the start button for controlling water tank water pump, and 53 be control water tank water pump
Stop button.
In the present embodiment, the controller is as shown in figure 5, including DSP embedded processor, clock circuit, resetting electricity
Road, relay drive circuit, button and numeric keypad circuit, LCD display circuit, the model ULN2003, LCD of driving chip
Liquid crystal display model LCD1602 is character mode lcd screen, and totally 2 row, every row can show 16 characters.
In the present embodiment, the chip model of the dsp processor is TMS320F28335, and clock circuit is using external brilliant
Vibration generates 150MHz standard time clock, connect with the clock input pin XCLKIN of dsp processor, and reset circuit is opened by resetting
It closes and generates pulse signal, connect with the reset pin XRS of dsp processor；Relay drive circuit is as shown in fig. 6, dsp processor
Signal input and output pin GPIO0 connect with the IN of driving chip ULN2003 mouth by photoelectrical coupler, when GPIO0 output
When high level, the phototriode in photoelectrical coupler is connected, and the IN mouth of ULN2003 receives high level, corresponding OUT
Mouth is just low level, and relay is attracted, control water pump start-up operation；Conversely, relay disconnects when single-chip microcontroller exports low level,
Control water pump stops working.Meanwhile ULN2003COM foot being connected to the end VCC of relay, using reversed inside ULN2003
Diode makees protective relay, the induced voltage generated when eliminating relay closure, can control the biggish water pump of power and carries out
Work.
In the present embodiment, signal input and output pin GPIO1~GPIO4 of dsp processor respectively with control small handcart
Front, rear, left and right movement buttons connection, GPIO5 with control small handcart pause/operation button connect, GPIO6~GPIO9 divide
It is not connect with the front, rear, left and right movement buttons of test small handcart, pause/operation button of GPIO10 and test small handcart connects
Connect, GPIO11, GPIO12 respectively with two small handcarts individually, be uniformly controlled mode button and connect, GPIO13~GPIO17 respectively with
Nominal load capacity, load factor, test small handcart and test water tank total weight, required plus water volume, pump capacity sensor
The input button of reading connects, GPIO18~GPIO20 RS, RW, E with nominal load capacity LCD1602 liquid crystal display respectively
Foot connection, GPIO21~GPIO28 are connect with LCD1602 data terminal D0~D7 respectively, as shown in Figure 7；Similarly GPIO29~
GPIO39 is connect with RS, RW, E and D0 of load factor LCD liquid crystal display screen~D7 foot, and GPIO40~GPIO50 small is pushed away with testing
Vehicle is connected with RS, RW, E and D0 of test water tank total weight LCD liquid crystal display screen~D7 foot, GPIO51~GPIO61 with it is required
Add RS, RW, E and D0~D7 foot connection of water volume LCD liquid crystal display screen, GPIO62~GPIO72 pump capacity sensor reading
RS, RW, E and D0 of LCD liquid crystal display~D7 foot connection, pump capacity sensor model number are Sai Shenger output of pulse signal
Water flow sensing unit SEN-HZ21WA, the signal of acquisition are connected to the multichannel of dsp processor by A/D conversion chip ADS8345
Buffered Serial interface (McBSP), GPIO73~GPIO79 row, column input with numeric keypad (0~9, AC, 4 rows 3 column) respectively
End connection, as shown in Figure 7.GPIO80 is connect with the automatic control button of test water tank water pump, GPIO81 and test water tank water pump
Manual control button connection, GPIO82 connect with the start button of test water tank water pump, GPIO83 and test water tank water pump
Stop button connection, GPIO84 are connect with the automatic control button of control water tank water pump, the hand of GPIO85 and control water tank water pump
Dynamic control button connection, GPIO86 are connect with the start button of control water tank water pump, the stopping of GPIO87 and control water tank water pump
Button connection.
In other embodiments, water pump may be mounted at water tank outside, such as be placed on small handcart front, by water inlet pipe and
Outlet pipe is connect with two water tanks.
In other embodiments, test water tank can use highstrenghtpiston's water bag, be placed on test four pieces of sides of small handcart
Inside the counterweight space that plate cooperates loading end to be formed, water bag storage can be made neat and will not be dispersed everywhere, it can will when transport
Water bag is compressed to reduce volume, convenient transportation.
Do not done in the present invention illustrate be the prior art or can be realized by the prior art, and the present invention
Described in specific implementation case be only preferable case study on implementation of the invention, practical range not for the purpose of limiting the invention.
Equivalent changes and modifications made by i.e. all contents according to scope of the present invention patent all should be used as technology scope of the invention.
Claims (10)
1. a kind of elevator counterweight experimental rig, which is characterized in that including identical two small handcarts of controller and structure, wherein one
It is denoted as test small handcart, another is denoted as control small handcart；
Water tank, water pump, weighing sensor and display screen are provided on the small handcart；Wherein, the water inlet of water pump and water tank connect
It is logical, flow sensor is equipped at pump outlet, and water outlet is connected to one end of water pipe, the other end of water pipe can with it is another
The water-tank-detachable type connection of small handcart；Weighing sensor is arranged in water tank bottom；Water pump, the flow sensing of two small handcarts
Device, weighing sensor and display screen are electrically connected between controller.
2. elevator counterweight experimental rig according to claim 1, which is characterized in that the water tank is made of transparent material,
Graduation mark is indicated on water tank.
3. elevator counterweight experimental rig according to claim 1 or 2, which is characterized in that be provided with electricity on the small handcart
Machine is arranged with synthetic resin crawler belt on the idler wheel of small handcart, is electrically connected between motor and controller, passes through controller and starts motor, band
Dynamic caterpillar drive, driving small handcart movement.
4. elevator counterweight experimental rig according to claim 3, which is characterized in that on the water tank with the water pipe other end
Connector is provided with sealing component, and the sealing component includes connecting tube, and connecting tube is connected to water tank, and is fixed on tank upper cover
On plate, it is in boss-shaped that connector, which is located at the end outside water tank, is arranged with sealing ring on boss, sealing is hinged in connecting tube
Lid, is provided with spring between connecting tube and sealing cover.
5. elevator counterweight experimental rig according to claim 4, which is characterized in that be provided with control plane on the controller
Plate, is provided with multiple buttons and display screen being electrically connected with the controller on control panel, the button be respectively small handcart to
Preceding movement buttons, backward movement buttons, move downward button, move right button, pause/operation button, remote controler ON/OFF are pressed
Button, the independent control model button of two small handcarts, two small handcarts are uniformly controlled mode button, nominal load capacity input button, dress
Volume input button, the flow sensor readings for carrying coefficient input button, small handcart and water tank total weight input button, water filling are defeated
Enter button, automatic pump button, water pump manual control button, the start button of water pump, the stop button of water pump and number
Keyboard button；
The button display screen be respectively nominal load capacity LCD liquid crystal display screen, load factor LCD liquid crystal display screen, test it is small
Cart and test water tank total weight LCD liquid crystal display screen, required plus water volume LCD liquid crystal display screen and pump capacity sensor are read
Number LCD liquid crystal display screen；
Wherein, the button that travels forward of small handcart, backward movement buttons, move downward button, move right button and pause/fortune
Row button and automatic pump button, water pump manual control button, the stop button of the start button of water pump and water pump are equal
There are two settings, respectively the corresponding button of test small handcart button corresponding with control small handcart；
Default small handcart is set as independent control model by controller.
6. elevator counterweight experimental rig according to claim 5, which is characterized in that the weighing sensor uses SWB505
MultiMountTMPressure type Weighing module, maximum weighing 5kg-4.4t, water tank bottom are arranged altogether there are four Weighing module, and four claim
Molality block is separately mounted on four angles of water tank bottom surface, and the lower bracket of Weighing module and small handcart loading end pass through bolt
It is fixedly connected；The top loading end of Weighing module is contacted with water tank bottom surface, and by the fixation otic placode at four angles of water tank and is claimed
Molality block top loading end is fixedly connected.
7. elevator counterweight experimental rig according to claim 6, which is characterized in that the controller includes DSP embedded
Processor, clock circuit, reset circuit, relay drive circuit, button and numeric keypad circuit and LCD display circuit；
Wherein, the model ULN2003 of driving chip, LCD liquid crystal display screen model LCD1602 are character mode lcd screen；
The chip model of dsp processor is TMS320F28335；
The dsp processor clock circuit generates 150MHz standard time clock using external crystal-controlled oscillation, inputs with the clock of dsp processor
Pin XCLKIN connection, reset circuit generate pulse signal by reset switch, connect with the reset pin XRS of dsp processor；
The signal input/output pin GPIO0 of dsp processor passes through the IN mouth company of photoelectrical coupler and driving chip ULN2003
It connects, when GPIO0 exports high level, the phototriode in photoelectrical coupler is connected, and the IN mouth of ULN2003 receives high electricity
Flat, corresponding OUT port is just low level, and relay is attracted, and control water pump is started to work；Conversely, when GPIO0 exports low electricity
Usually, relay disconnects, and control water pump stops working；
Meanwhile ULN2003COM foot is connected to the end VCC of relay, using the backward dioded inside ULN2003 protect after
Electric appliance, the induced voltage generated when eliminating relay closure, can control the biggish water pump of power and works；
Signal input/output pin GPIO1~GPIO4 of the dsp processor respectively with control small handcart travel forward by
Button, backward movement buttons move downward button, move right button connection, the signal input/output pin of dsp processor
GPIO5 is connect with pause/operation button of control small handcart, signal input/output pin GPIO6~GPIO9 of dsp processor
Respectively with the button that travels forward of test small handcart, backward movement buttons, move downward button, move right button and connect, DSP
The signal input/output pin GPIO10 of processor is connect with pause/operation button of test small handcart, the letter of dsp processor
Number input/output pin GPIO11, GPIO12 are uniformly controlled with the independent control model button of two small handcarts, two small handcarts respectively
Mode button connection, signal input/output pin GPIO13~GPIO17 of dsp processor are pressed with nominal load capacity input respectively
Button, load factor input button, small handcart and water tank total weight input button, water filling volume input button, flow sensor
Read input button connection, signal input/output pin GPIO18~GPIO20 of dsp processor respectively with nominal load capacity
RS, RW, E foot of LCD1602 liquid crystal display connect, and signal input/output pin GPIO21~GPIO28 points of dsp processor
It is not connect with LCD1602 data terminal D0~D7；The signal input/output pin GPIO29~GPIO39 and loading of dsp processor
RS, RW, E and D0 of coefficient LCD liquid crystal display screen~D7 foot connection, the signal input/output pin GPIO40 of dsp processor~
GPIO50 is connect with RS, RW, E and D0~D7 foot of test small handcart and test water tank total weight LCD liquid crystal display screen, at DSP
Manage the signal input/output pin GPIO51~GPIO61 and required plus water volume LCD liquid crystal display screen RS, RW, E and D0 of device
The connection of~D7 foot, signal input/output pin GPIO62~GPIO72 pump capacity sensor reading LCD liquid of dsp processor
RS, RW, E and D0 of crystal display screen~D7 foot connection；The signal of flow sensor acquisition is sent by A/D conversion chip ADS8345
To the multichannel buffer serial line interface (McBSP) to dsp processor；
Signal input/output pin GPIO73~GPIO79 of the dsp processor respectively with numeric keypad (0~9, AC, 4
Row 3 arranges) the connection of row, column input terminal, the signal input/output pin GPIO80 of dsp processor and test water tank water pump from
Dynamic control button connection, the manual control button of signal the input/output pin GPIO81 and test water tank water pump of dsp processor
Connection, the signal input/output pin GPIO82 of dsp processor are connect with the start button of test water tank water pump, dsp processor
Signal input/output pin GPIO83 connect with the stop button of test water tank water pump, the signal of dsp processor input/defeated
Pin GPIO84 is connect with the automatic control button of control water tank water pump out, the signal input/output pin of dsp processor
GPIO85 is connect with the manual control button of control water tank water pump, the signal input/output pin GPIO86 of dsp processor and control
The start button of water tank water pump processed connects, the signal input/output pin GPIO87 of dsp processor and stopping for control water tank water pump
Only button connects.
8. special based on the method that elevator counterweight experimental rig of any of claims 1-7 tests elevator
Sign is, includes the following steps:
Step 1: test small handcart to be pushed into the sedan-chair of elevator to be detected by corresponding button on push-button controller control panel
In compartment, control small handcart is placed in outside carriage；Wherein testing in the water tank of small handcart does not have water, controls in the water tank of small handcart and infuses
Full water；
Step 2: corresponding button on the control panel for passing through controller, the nominal load capacity m of small handcart is tested in input respectively1、
Load factor p, water tank and the self weight m for testing small handcart2, controller is calculated according to following formula to be needed to test small handcart
The volume V filled the water in water tank,
p*m1=m2+ρ*V (1)
V=(p*m1-m2)/ρ (2)
In formula, ρ is the density of water；By the volume input button of water filling, calculated V value is inputted；Then test the volume of small handcart
Determine loading capacity m1, load factor p, water tank and test small handcart self weight m2It is filled the water with needs into the water tank of test small handcart
Volume V is respectively displayed on corresponding display screen；
Step 3: the water tank on the other end for the water pipe for controlling the connection of small handcart charging pump water outlet and test small handcart is connected
Logical, by the start button of push-button controller control panel charging pump, the water pump controlled on small handcart is started to work, and will be controlled small
In the water tank on water injection testing small handcart in cart upper water box, pump outlet is equipped with flow sensor, needed for reaching
After the volume V of water filling, controller controls water pump and stops water filling, and the water pipe that small handcart charging pump water outlet processed is connected is another
End is detached from the water tank on test small handcart；
Step 4: to test the self weight m of small handcart and water tank2, and the weight substitution counterweight of injection water, elevator is balanced
Ratio test, limiter of speed-safety tongs linkage test, elevator speed test, downlink damped condition traction inspection, static traction inspection
It looks into and retardation test；
Step 5: exiting elevator by controller Control experiment small handcart after the test.
9. the method according to claim 8 tested elevator, which is characterized in that in the step 4, take loading
Coefficient p is 30%, 40%, 50% and 60%, i.e., is successively done to elevator with 30%, 40%, 50% and 60% nominal load capacity
Coefficient of balance test, elevator speed test, then load 125% nominal load capacity do limiter of speed-safety tongs linkage test, under
Row damped condition traction inspection, static traction inspection and retardation test.
10. the method according to claim 8 tested elevator, which is characterized in that in the step 5, our department's electricity
Ladder after the test, is tested and has filled water in the water tank of small handcart, controlling does not have water in the water tank of small handcart；To next elevator
When corresponding test, test small handcart and control small handcart are exchanged, and using control small handcart as test small handcart, are directly carried out next
The counterweight of portion's elevator is tested.
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| CN110261155A (en) * | 2019-07-02 | 2019-09-20 | 福建省特种设备检验研究院 | A kind of the special equipment test load device and its application method of portable multi-purpose |
| CN110436292A (en) * | 2019-07-22 | 2019-11-12 | 河南省特种设备安全检测研究院 | A kind of weighing device applied to substitution counterweight in elevator inspection |
| CN110642112A (en) * | 2019-09-29 | 2020-01-03 | 北京房地天宇特种设备安装工程有限公司 | Safe operation test method for elevator installation and electronic equipment thereof |
| CN112744659A (en) * | 2020-12-18 | 2021-05-04 | 广东省特种设备检测研究院珠海检测院 | Non-load test method for elevator loaded down-going brake performance |
| CN113336034A (en) * | 2021-06-04 | 2021-09-03 | 山西省检验检测中心(山西省标准计量技术研究院) | Elevator load test method based on liquid flow accurate control |
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| CN112744659A (en) * | 2020-12-18 | 2021-05-04 | 广东省特种设备检测研究院珠海检测院 | Non-load test method for elevator loaded down-going brake performance |
| CN112744659B (en) * | 2020-12-18 | 2022-04-15 | 广东省特种设备检测研究院珠海检测院 | Non-load test method for elevator loaded down-going brake performance |
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