CN108873755A - Anti-sticking system and anti-card test method for lifting device - Google Patents
Anti-sticking system and anti-card test method for lifting device Download PDFInfo
- Publication number
- CN108873755A CN108873755A CN201810983347.0A CN201810983347A CN108873755A CN 108873755 A CN108873755 A CN 108873755A CN 201810983347 A CN201810983347 A CN 201810983347A CN 108873755 A CN108873755 A CN 108873755A
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- China
- Prior art keywords
- lifting device
- oil pump
- equipment
- hydraulic cylinder
- sensor
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- 238000010998 test method Methods 0.000 title claims abstract description 13
- 230000000630 rising effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 37
- 230000007423 decrease Effects 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses for lifting device anti-sticking system and anti-card test method,Including the equipment control centre for driving the oil pump drive system of lifting device and being controlled oil pump drive system,The oil pump drive system includes oil pump,Three-way interface,First hydraulic cylinder and the second hydraulic cylinder,The three-way interface is by oil pump,First hydraulic cylinder and the second hydraulic cylinder are attached,It further include the motor for driving oil pump,It further include dynamic detecting equipment,It further include the current sensor for detecting current of electric,Pressure sensor is additionally provided between the oil pump and three-way interface,The dynamic detecting equipment is connect with pressure sensor and current sensor,Anti-sticking system of the invention judges whether lifting device breaks down by detecting current of electric exception or oil pump drive system extremely,And it can judge that motor breaks down or stuck phenomenon occurs in machine by the different faults detected,To realize quick judgement and the Quick overhaul of equipment.
Description
Technical field
The present invention relates to lifting device fields, in particular to for the anti-sticking system of lifting device and anti-card test method.
Background technique
In hydraulic lifting equipment field, including lifting device, lifting device two sides are provided with track, pass through two of two sides
Hydraulic system drives platform to move up and down, and lifting device common at present can not carry out security control, when the side of platform is led
When rail is blocked by foreign matter or the side of platform snaps into floor, common lifting device can not make emergency braking, when platform is gone up and down
When guide rail stuck phenomenon occurs in uphill process for equipment, platform lifting device can be made to can not work normally or accident is caused to be sent out
Other immeasurable harm such as raw, when during decline guide rail stuck phenomenon occurs for platform lifting device, oil cylinder at this time
It will continue to decline, to will lead to the generation of falling accident, so that security risk occur in device fails or cargo personnel etc..
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of anti-sticking systems for lifting device for improving security performance.
The technical solution adopted by the present invention to solve the technical problems is：For the anti-sticking system of lifting device, including with
In the equipment control centre for driving the oil pump drive system of lifting device and being controlled oil pump drive system, the oil pump is driven
Dynamic system includes oil pump, three-way interface, the first hydraulic cylinder and the second hydraulic cylinder, and the three-way interface is by oil pump, the first liquid
Compressing cylinder and the second hydraulic cylinder are attached, and further include driving the motor of oil pump, including connect with equipment control centre and motor
What is connect is used to receive the dynamic detecting equipment of electric current and oil pressure pressure signal, further includes the current sense for detecting current of electric
Device is additionally provided with pressure sensor, the dynamic detecting equipment and pressure sensor and electricity between the oil pump and three-way interface
Flow sensor connection.
It is further：It further include the first hydraulic flow sensor and the second hydraulic flow sensor, it is characterised in that：Institute
It states the first hydraulic flow sensor to be arranged between three-way interface and the first hydraulic cylinder, the second hydraulic flow sensor is set
It sets between three-way interface and the second hydraulic cylinder.
The invention also discloses the anti-card test methods for lifting device, when lifting device brings into operation, 3 seconds mistakes
Afterwards, dynamic detecting equipment detects motor in setting time T1Interior electric current is flown up, and electric current ascending amount reaches Rated motor
Current setting value I1, dynamic detecting equipment signals to equipment control centre, and it is out of service to control lifting device.
It is further：The T1It can be the I between 0.5 to 2 second1It can be any one numerical value between 3% -8%.
It is further：When lifting device in the process of running, within 5 seconds periods, the rising value of electric current reaches motor volume
The setting value I of constant current2, dynamic detecting equipment signals to equipment control centre, and it is out of service to control lifting device.
It is further：The I2It can be any one numerical value between 7% -12%.
It is further：When pressure sensor detects that oil pressure rises rapidly or slippage reaches P value rapidly, dynamic is examined
Measurement equipment signals to equipment control centre, and it is out of service to control lifting device.
It is further：The P may be set to the 3% to 8% of normal oil pressure value.
It is further：It further include the first hydraulic flow sensor and the second hydraulic flow sensor, it is characterised in that：Institute
It states the first hydraulic flow sensor to be arranged between three-way interface and the first hydraulic cylinder, the second hydraulic flow sensor is set
It sets between three-way interface and the second hydraulic cylinder；
When the flow value that the first hydraulic flow sensor or the second hydraulic flow sensor detect is flown up or suddenly
When slippage reaches M, dynamic detecting equipment signals to equipment control centre, controls lifting device and stops fortune.
It is further：The M may be set between the 3% to 10% of normal stream magnitude.
The beneficial effects of the invention are as follows：Anti-sticking system of the invention passes through detection current of electric exception or oil pump drive system
Exception come judge lifting device whether go out break down, and can be judged by the different faults detected be motor break down
Or there is stuck phenomenon in machine, to realize quick judgement and the Quick overhaul of equipment.
Detailed description of the invention
Fig. 1 is the anti-sticking system schematic for lifting device.
Fig. 2 is the first state wave pattern of electric current.
Fig. 3 is second of state wave pattern of electric current.
Fig. 4 is the third state wave pattern of electric current.
Fig. 5 is the 4th kind of state wave pattern of electric current.
Fig. 6 is the superimposed flow diagram of the first hydraulic flow sensor and the second hydraulic flow sensor.
Fig. 7 is the first hydraulic flow sensor or the second hydraulic flow sensor normal condition flow diagram.
Fig. 8 is the first hydraulic flow sensor stream spirogram.
Fig. 9 is the second hydraulic flow sensor stream spirogram.
Figure 10 is the pressure value that pressure sensor detects.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
Anti-sticking system for lifting device as shown in Figure 1, including for driving the oil pump drive system of lifting device
With the equipment control centre controlled oil pump drive system, the oil pump drive system includes oil pump, three-way interface, first
Oil pump, the first hydraulic cylinder and the second hydraulic cylinder are attached by hydraulic cylinder and the second hydraulic cylinder, the three-way interface,
It further include the motor for driving oil pump, including being connect with equipment control centre and motor for receiving electric current and oil pressure pressure signal
Dynamic detecting equipment, further include the current sensor for detecting current of electric, also set between the oil pump and three-way interface
It is equipped with pressure sensor, the dynamic detecting equipment is connect with pressure sensor and current sensor, and when specifically used, electric current is passed
The current status of sensor real-time monitoring motor, if electric current occurs suddenly, raising etc. is abnormal, can determine whether that lifting device blocks and leads
Rail or motor damage etc. are abnormal, so that dynamic detecting equipment can send a signal to equipment control centre immediately, so that lifting
Equipment stops working, to protect lifting device, avoids the occurrence of safety accident, meanwhile, when pressure sensor detects number pressure
Value increases suddenly or decline suddenly, it can be determined that goes out lifting device failure at this time and is seized by guide rail, so that dynamic
Detection device can send a signal to equipment control centre immediately, so that lifting device stops working, to protect lifting device.
It on the basis of the above, further include the first hydraulic flow sensor and the second hydraulic flow sensor, first liquid
Flow sensor is pressed to be arranged between three-way interface and the first hydraulic cylinder, the second hydraulic flow sensor is arranged in threeway
Between interface and the second hydraulic cylinder, since there are two independent oil cylinders for lifting device, when lifting device side is blocked by guide rail
When, the hydraulic oil for blocking side can be flow in the oil cylinder of the other side, to will lead to what two hydraulic flow sensors detected
Flow value one flies up, a decline suddenly, so that the flow value that two hydraulic flow sensors detect is inconsistent, from
And lifting device can be represented and unilateral stuck phenomenon occur, and immediately can judge that catching phenomenon occurs in the guide rail on which side, this
When dynamic detecting equipment can send a signal to equipment control centre immediately so that lifting device stops working, to protect lifting
Whether equipment, anti-sticking system of the invention judge lifting device by detecting current of electric exception or oil pump drive system extremely
It breaks down, and can judge that motor breaks down or stuck phenomenon occurs in machine by the different faults detected, from
And realize quick judgement and the Quick overhaul of equipment.
Specially：When lifting device brings into operation, after 3 seconds, dynamic detecting equipment detects motor in setting time
T1Interior electric current is flown up, and electric current ascending amount reaches rated current of motor setting value I1, dynamic detecting equipment signals to equipment
Control centre, control lifting device is out of service, the T1It can be between 0.5 to 2 second, such as T1It is 1 second, 1.5 seconds, 2 seconds are described
I1It can be any one numerical value between 3% -8%, such as 3%, 5%, 6%, 8%, above-mentioned T1And I1Number can be according to practical feelings
Condition is selected, and before work, can be shifted to an earlier date according to using different motors to set different rated current of motor values, such as 20A,
22A etc., when the current value being set in advance is 20A, if I1Setting is 5%, then when electric current is in T1When interior unexpected raising 1A, rise
Drop equipment is out of service, and the following are two embodiments：One embodiment is as shown in Fig. 2, i.e. when current sensor detects electricity
Electromechanics stream can determine whether that catching phenomenon occurs for lifting device at this time when rising value reaches the 5% of rated current of motor in 1 second,
Dynamic detecting equipment can send a signal to equipment control centre immediately, so that lifting device stops working, second is implemented for example
Shown in Fig. 4, i.e., when current sensor detects current of electric rising value reaches the 6% of rated current of motor in 1.5 seconds when, i.e.,
Can determine whether that catching phenomenon occurs for lifting device at this time, dynamic detecting equipment can send a signal to equipment control centre immediately, so that
Lifting device stops working, to play a protective role to lifting device, on startup due to motor, electric current can be flown up,
Its variable quantity is five to six times of its rated current, thus behind 3 seconds after lifting device starting of current sensor monitor,
To ensure that the accuracy of monitoring.
On the basis of the above, when lifting device in the process of running, within 5 seconds periods, the rising value of electric current reaches motor
The setting value I of rated current2, dynamic detecting equipment signals to equipment control centre, and it is out of service to control lifting device, described
I2It can be any one numerical value between 7% -12%, above-mentioned I2Number can be selected according to the actual situation, such as 7%, 9%,
10%, 12%, the following are two embodiments：One embodiment is as shown in figure 3, in a cycle 5 seconds, the rising value of electric current
Reaching the 9% of rated current of motor, dynamic detecting equipment signals to equipment control centre, and control lifting device is out of service,
When current sensor detects current of electric rising value reaches the 5% of rated current of motor in 1 second when, that is, can determine whether to rise at this time
It drops equipment and catching phenomenon occurs, dynamic detecting equipment can send a signal to equipment control centre immediately, so that lifting device stops
Work, for second embodiment as shown in figure 5, in a cycle 5 seconds, the rising value of electric current reaches the 9% of rated current of motor,
Dynamic detecting equipment signals to equipment control centre, and control lifting device is out of service, when current sensor detects motor
Electric current can determine whether that catching phenomenon occurs for lifting device at this time when rising value reaches the 6% of rated current of motor in 1.5 seconds,
Dynamic detecting equipment can send a signal to equipment control centre immediately, so that lifting device stops working.
On the basis of the above, when pressure sensor detects that oil pressure rises rapidly or slippage reaches P value rapidly, dynamic
Detection device signals to equipment control centre, and control lifting device is out of service, and the P may be set to normal oil pressure value
3% to 8%, the P optional 3%, 5%, 7%, 8% etc. can shift to an earlier date before work according to using different oil cylinders to set not
Same normal oil pressure value, such as 2MPa, 3MPa etc., if P setting is 5%, work as pressure when the current value being set in advance is 2MPa
When force snesor detects that oil pressure rises rapidly or slippage reaches 0.1MPa rapidly, lifting device is out of service, such as Figure 10 institute
Show, in elevator uphill process, when the oil pressure value amount of flying up that pressure sensor detects reaches the P of normal oil pressure value,
It represents lifting device at this time to break down and be stuck in uphill process, dynamic detecting equipment can be sent a signal to immediately at this time
Equipment control centre, so that lifting device stops working, when the unexpected slippage of oil pressure value that pressure sensor detects reaches just
It when the P of normal oil pressure value, represents lifting device at this time and breaks down during decline and be stuck, but oil cylinder continues to transport downwards
Dynamic, oil pressure can decline suddenly at this time, and dynamic detecting equipment can send a signal to equipment control centre immediately at this time, so that lifting is set
It is standby to stop working.
It on the basis of the above, further include the first hydraulic flow sensor and the second hydraulic flow sensor, first liquid
Flow sensor is pressed to be arranged between three-way interface and the first hydraulic cylinder, the second hydraulic flow sensor is arranged in threeway
Interface and the second hydraulic cylinder, as shown, Fig. 6 is the superposition of the first hydraulic flow sensor and the second hydraulic flow sensor
Flow diagram afterwards, Fig. 7 are the first hydraulic flow sensor or the second hydraulic flow sensor normal condition flow diagram；
When the flow value that the first hydraulic flow sensor or the second hydraulic flow sensor detect is flown up or suddenly
When slippage reaches M, dynamic detecting equipment signals to equipment control centre, controls lifting device and stops fortune, the M can be set
Between the 3% to 10% of normal discharge value, it can be 3%, 5%, 7%, 10% etc., before work, can shift to an earlier date according to using
Different oil cylinders sets different flow value values, such as 500ml, 600ml etc., when the current value being set in advance is 500ml, if
M setting is 5%, then when the flow value that the first hydraulic flow sensor or the second hydraulic flow sensor detect rises rapidly
Or for slippage when reaching 25ml, lifting device is out of service, when lifting device catching phenomenon occurs on one side, passes through originally rapidly
The hydraulic oil on this side can be left in the oil cylinder of another side, unexpected so as to cause the hydraulic oil one side The hydraulic oil for leading to two oil cylinders
Rise, the The hydraulic oil of another side is unexpected, and as shown in Figure 8 and Figure 9, i.e., clamping stagnation occurs in the lifting device at the first hydraulic cylinder
When phenomenon, the flow value meeting dramatic decrease that the first hydraulic flow sensor detects, what the second hydraulic flow sensor detected
Flow value can rapidly rise, and when rising or slippage reaches M suddenly, dynamic detecting equipment can send a signal to equipment control immediately
Center processed, so that lifting device stops working, so that lifting device emergent stopping, to reduce the generation of safety accident.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. the anti-sticking system of lifting device is used for, including being for driving the oil pump drive system of lifting device and driving to oil pump
Unite the equipment control centre controlled, and the oil pump drive system includes oil pump, three-way interface, the first hydraulic cylinder and second
Oil pump, the first hydraulic cylinder and the second hydraulic cylinder are attached by hydraulic cylinder, the three-way interface, further include driving oil pump
Motor, it is characterised in that：Including connecting with equipment control centre and motor for receiving electric current and oil pressure pressure signal
Dynamic detecting equipment further includes the current sensor for detecting current of electric, also sets up between the oil pump and three-way interface
There is pressure sensor, the dynamic detecting equipment is connect with pressure sensor and current sensor.
2. being used for the anti-sticking system of lifting device as described in claim 1, it is characterised in that：It further include that the first hydraulic flow passes
Sensor and the second hydraulic flow sensor, it is characterised in that：First hydraulic flow sensor setting is in three-way interface and the
Between one hydraulic cylinder, the second hydraulic flow sensor is arranged between three-way interface and the second hydraulic cylinder.
3. it is used for the anti-card test method of lifting device, it is special including the anti-sticking system for lifting device in claim 1
Sign is：When lifting device brings into operation, after 3 seconds, dynamic detecting equipment detects motor in setting time T1Interior electric current
It flies up, and electric current ascending amount reaches rated current of motor setting value I1, dynamic detecting equipment signal to equipment control in
The heart, control lifting device are out of service.
4. being used for the anti-card test method of lifting device as claimed in claim 3, it is characterised in that：The T1It can be 0.5 to 2
Between second, the I1It can be any one numerical value between 3% -8%, the rated current of motor can be set in advance.
5. being used for the anti-card test method of lifting device as claimed in claim 3, it is characterised in that：When lifting device is being run
In the process, within 5 seconds periods, the rising value of electric current reaches the setting value I of rated current of motor2, dynamic detecting equipment signalling
To equipment control centre, it is out of service to control lifting device.
6. being used for the anti-card test method of lifting device as claimed in claim 4, it is characterised in that：The I2It can be 7%-
Any one numerical value between 12%.
7. being used for the anti-card test method of lifting device as claimed in claim 3, it is characterised in that：When pressure sensor detects
It is risen rapidly to oil pressure or when reaching P value, dynamic detecting equipment signals to equipment control centre slippage, and control is gone up and down rapidly
Equipment is out of service.
8. being used for the anti-card test method of lifting device as claimed in claim 7, it is characterised in that：The P may be set to just
The 3% to 8% of normal oil pressure value, the normal oil pressure value can be set in advance.
9. being used for the anti-card test method of lifting device as claimed in claim 7, it is characterised in that：It further include the first flow of pressurized
Quantity sensor and the second hydraulic flow sensor, it is characterised in that：The first hydraulic flow sensor is arranged in three-way interface
And first between hydraulic cylinder, the second hydraulic flow sensor is arranged between three-way interface and the second hydraulic cylinder；
When the flow value that the first hydraulic flow sensor or the second hydraulic flow sensor detect is flown up or is declined suddenly
When amount reaches M, dynamic detecting equipment signals to equipment control centre, controls lifting device and stops fortune.
10. being used for the anti-card test method of lifting device as claimed in claim 9, it is characterised in that：The M may be set to just
Between the 3% to 10% of normal flow value, the normal stream magnitude can be set in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983347.0A CN108873755B (en) | 2018-08-28 | 2018-08-28 | Anti-seize system and anti-seize detection method for lifting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983347.0A CN108873755B (en) | 2018-08-28 | 2018-08-28 | Anti-seize system and anti-seize detection method for lifting equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108873755A true CN108873755A (en) | 2018-11-23 |
| CN108873755B CN108873755B (en) | 2024-03-15 |
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| CN201810983347.0A Active CN108873755B (en) | 2018-08-28 | 2018-08-28 | Anti-seize system and anti-seize detection method for lifting equipment |
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| Country | Link |
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| CN (1) | CN108873755B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111539478A (en) * | 2020-04-26 | 2020-08-14 | 成都见田科技有限公司 | Intelligent diagnosis method, system and diagnosis equipment for elevator faults |
| CN113525959A (en) * | 2021-06-01 | 2021-10-22 | 陶朗环保技术(厦门)有限公司 | Glass bottle recycling machine and glass bottle soft descending control method |
| CN117879437A (en) * | 2024-03-13 | 2024-04-12 | 三一重型装备有限公司 | Control system and self-moving tail |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111539478A (en) * | 2020-04-26 | 2020-08-14 | 成都见田科技有限公司 | Intelligent diagnosis method, system and diagnosis equipment for elevator faults |
| CN113525959A (en) * | 2021-06-01 | 2021-10-22 | 陶朗环保技术(厦门)有限公司 | Glass bottle recycling machine and glass bottle soft descending control method |
| CN117879437A (en) * | 2024-03-13 | 2024-04-12 | 三一重型装备有限公司 | Control system and self-moving tail |
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| Publication number | Publication date |
|---|---|
| CN108873755B (en) | 2024-03-15 |
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