CN208569333U - Anti-sticking system for lifting device - Google Patents
Anti-sticking system for lifting device Download PDFInfo
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- CN208569333U CN208569333U CN201821388323.2U CN201821388323U CN208569333U CN 208569333 U CN208569333 U CN 208569333U CN 201821388323 U CN201821388323 U CN 201821388323U CN 208569333 U CN208569333 U CN 208569333U
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- oil pump
- lifting device
- hydraulic cylinder
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Abstract
The utility model discloses the anti-sticking systems for lifting device, 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, the anti-sticking system of the utility model judges whether lifting device breaks down by detecting current of electric exception or oil pump drive system extremely, and can by the different faults that detect come Judgement is that motor breaks down or stuck phenomenon occurs in machine, to realize quick judgement and the Quick overhaul of equipment.
Description
Technical field
The utility model relates to lifting device fields, in particular to are used for the anti-sticking system of lifting device.
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..
Utility model content
The technical issues of the utility model solves is to provide a kind of anti-sticking system for lifting device for improving security performance
System.
The technical scheme adopted by the utility model to solve the technical problem is as follows: it is used for the anti-sticking system of lifting device, packet
The equipment control centre for including the oil pump drive system for driving lifting device and oil pump drive system being controlled, the oil
Drive system of pump includes oil pump, three-way interface, the first hydraulic cylinder and the second hydraulic cylinder, and the three-way interface is by oil pump,
One hydraulic cylinder and the second hydraulic cylinder are attached, further include drive oil pump motor, including with equipment control centre and electricity
The dynamic detecting equipment for being used to receive electric current and oil pressure pressure signal of machine connection, further includes the electric current for detecting current of electric
Sensor is additionally provided with pressure sensor, the dynamic detecting equipment and pressure sensor between the oil pump and three-way interface
It is connected with current sensor.
Further, further including 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
Later, dynamic detecting equipment detects motor in setting time T1Interior electric current is flown up, and electric current ascending amount reaches motor volume
Constant current setting value I1, dynamic detecting equipment signals to equipment control centre, and it is out of service to control lifting device.
Further, the T1It can be the I between 0.5 to 2 second1It can be any one numerical value between 3% -8%.
Further, working as 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.
Further, the I2It can be any one numerical value between 7% -12%.
Further, dynamic is examined when pressure sensor detects that oil pressure rises rapidly or slippage reaches P value rapidly
Measurement equipment signals to equipment control centre, and it is out of service to control lifting device.
Further, the P may be set to the 3% to 8% of normal oil pressure value.
Further, further including 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.
Further, the M may be set between the 3% to 10% of normal stream magnitude.
The beneficial effects of the utility model are: the anti-sticking system of the utility model passes through detection current of electric exception or oil pump
Drive system judges whether lifting device breaks down extremely, and can judge to be motor by the different faults detected
It breaks down or stuck phenomenon occurs 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 will be further described below with reference to the accompanying drawings and specific embodiments.
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
The anti-sticking system of equipment, the utility model judges lifting device by detecting current of electric exception or oil pump drive system extremely
Whether break down, and can judge that motor breaks down or machine appearance is stuck existing by the different faults detected
As to realize quick judgement and the Quick overhaul of equipment.
Specifically: 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 into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not limited to this foregoing is merely specific embodiment of the utility model
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (2)
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: further include that the first hydraulic flow passes
Sensor and the second hydraulic flow sensor, it is characterised in that: the 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821388323.2U CN208569333U (en) | 2018-08-28 | 2018-08-28 | Anti-sticking system for lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821388323.2U CN208569333U (en) | 2018-08-28 | 2018-08-28 | Anti-sticking system for lifting device |
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| Publication Number | Publication Date |
|---|---|
| CN208569333U true CN208569333U (en) | 2019-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821388323.2U Active CN208569333U (en) | 2018-08-28 | 2018-08-28 | Anti-sticking system for lifting device |
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| CN (1) | CN208569333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873755A (en) * | 2018-08-28 | 2018-11-23 | 苏州德林宝电梯制造有限公司 | Anti-sticking system and anti-card test method for lifting device |
-
2018
- 2018-08-28 CN CN201821388323.2U patent/CN208569333U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873755A (en) * | 2018-08-28 | 2018-11-23 | 苏州德林宝电梯制造有限公司 | Anti-sticking system and anti-card test method for lifting device |
| CN108873755B (en) * | 2018-08-28 | 2024-03-15 | 苏州德林宝电梯制造有限公司 | Anti-seize system and anti-seize detection method for lifting equipment |
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