CN117868059A - Fixed hoist type hoist detecting system and device - Google Patents

Abstract

The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a fixed winch hoist detection system and device, comprising the following steps of respectively measuring a gate opening value and a load value through an acquisition assembly; processing a plurality of data of the measured gate opening value, and calculating an average value; comparing the two measured load values to calculate a difference value; and selecting the difference value and the optimal gate opening value, and then sending the difference value and the optimal gate opening value to the PLC, and controlling the opening and closing of the gate by the PLC according to a set control strategy. The invention has the beneficial effects that the opening value and the load value of the gate measured by the sensor are monitored in real time, so that the gate is ensured to be stable and reliable in the action process, and firstly, when the measured value of the load of the two gates is larger than the set allowable deviation and the absolute value of the difference between the measured value of the opening of the gate and the set value of the opening is also larger than the set allowable deviation, the gate is considered to be in an unbalanced state, the opening and closing actions of the gate are stopped, and the safety of the gate is ensured.

Description

Fixed hoist type hoist detecting system and device

Technical Field

The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a fixed winch type hoist detection system and device.

Background

The hydroelectric power station dam is provided with a porous flood discharge sand washing gate which is used for discharging sand and flood, adjusting the water level of the dam reservoir, ensuring the operation safety of the dam, and the gate is operated by adopting a fixed winch type headstock gear. In recent years, with the continuous improvement of the degree of automation, a centralized control mode of remote control is widely adopted for the gate hoist, but because the data of important measurement links such as gate opening, load and the like are inaccurate, the method is single, the gate opening adjustment precision is low, the occurrence of sudden river rise and natural disasters during flood season increases the workload of gate operation of operation centralized control personnel and on-site personnel, and the safe and stable operation of hoist equipment is affected.

In a hydraulic building, a hoist is hoisting machinery for operating equipment such as a gate, a trash rack and the like, and the hoist is provided with important tasks of adjusting the overflow of the gate, releasing flood, discharging sand, flushing sand and the like according to the operation requirement of a power plant; meanwhile, the opening and closing machine can also finish the auxiliary work of installation, maintenance and the like of other metal structures and electromechanical equipment.

In recent years, with the continuous improvement of the degree of automation, the hoist is widely controlled in a centralized manner, remotely monitored and operated, but at the same time, the control failure of the hoist is caused by equipment aging, misalignment of an automatic element (gate opening, load measurement), untimely equipment maintenance and the like.

Disclosure of Invention

Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.

The invention aims to provide a fixed winch hoist detection system.

Therefore, the object is to solve: due to equipment aging, problems of misalignment of the automation components (gate opening, load measurement).

In order to solve the technical problems, the invention provides the following technical scheme: a fixed winch hoist detection system comprises a gate opening value and a load value which are respectively measured through an acquisition component;

processing a plurality of data of the measured gate opening value, and calculating an average value;

comparing the two measured load values to calculate a difference value;

and selecting the difference value and the optimal gate opening value, and then sending the difference value and the optimal gate opening value to the PLC, and controlling the opening and closing of the gate by the PLC according to a set control strategy.

As a preferable scheme of the fixed winch hoist detection device, the invention comprises the following steps: the acquisition assembly comprises an acquisition device for acquiring gate data, a processing module for processing the acquired data to obtain an average value and a difference value, and a symptom monitoring PLC for monitoring and analyzing the whole equipment.

As a preferable scheme of the fixed winch hoist detection device, the invention comprises the following steps: the collector comprises a first collector and a second collector, wherein the first collector is used for collecting gate opening values and comprises a rotary encoder, a laser gate position meter and a wire pulling gate position meter, and the second collector is used for collecting gate load values and comprises a side pressure type load sensor and a pressure sensitive load sensor.

As a preferable scheme of the fixed winch hoist detection device, the invention comprises the following steps: the processing module comprises a signal collector and a PLC, the output ends of the first collector and the second collector are connected with the input end of the signal collector, the signal collector is internally provided with a signal isolator for processing signals, the PLC is used for acquiring data of the signal collector and calculating a gate opening value, and the PLC comprises a load opening instrument for calculating a gate load value.

The fixed winch hoist detection device has the beneficial effects that: the system is designed to monitor the opening value and the load value of the gate measured by the sensor in real time, ensure the gate to be stable and reliable in the action process, avoid the damage of the gate caused by the conditions of not in place adjustment, danger caused by unbalance and the like, firstly, compare the measured values of the load of the two gates, and if the absolute value of the difference value of the measured values is larger than the set allowable deviation, consider that the gate action is unbalanced, under the condition that the absolute value of the difference between the measured value of the gate opening and the set value of the opening is also larger than the set allowable deviation, consider that the gate is in an unbalanced state, the system starts protection, stops the opening and closing actions of the gate, and ensures the safety of the gate.

In view of the fact that the system is applied to a hydropower station in the actual use process, the problem that the service life of part of equipment is easily shortened due to the fact that the environment humidity of the hydropower station is high is solved.

In order to solve the technical problems, the invention also provides the following technical scheme: the fixed winch hoist detection device comprises a fixed winch hoist detection system and also comprises a collection assembly, wherein the collection assembly comprises a collection shell and a cooling fan arranged in the collection shell;

the filter assembly comprises a positioning piece, a filter piece and a trigger piece, wherein the positioning piece is arranged on the outer side of the collecting shell and corresponds to the cooling fan, the filter piece is arranged on one side, far away from the collecting shell, of the positioning piece, and the trigger piece is used for driving the filter piece to move to a preset position;

and the standby assembly is mounted on the positioning piece.

As a preferable scheme of the fixed winch hoist detection device, the invention comprises the following steps: the locating piece includes deflector, strain shell and filtration pore, it is fixed in the deflector middle part to strain the shell, it is connected with gathering the casing through the bolt to strain the shell, strain the shell on offered the filtration pore that corresponds with radiator fan.

As a preferable scheme of the fixed winch hoist detection device, the invention comprises the following steps: the filter piece comprises a sliding block, a filter layer and a positioning ring, wherein the sliding block is arranged on the outer side of the guide plate in a sliding mode, a filter groove for accommodating the filter layer is formed in the outer side of the sliding block, and the positioning ring is clamped with the filter groove to restrain the filter layer.

As a preferable scheme of the fixed winch hoist detection device, the invention comprises the following steps: the trigger piece includes trigger piece, butt piece and compression spring, trigger piece first end and filter bowl inner wall sliding connection, trigger piece second end pierces through the filter layer, the butt piece activity sets up in the sliding block top, the butt piece bottom is connected with the trigger piece, just be connected with extension spring between butt piece and the sliding block, compression spring both ends are connected with filter shell and sliding block respectively.

As a preferable scheme of the fixed winch hoist detection device, the invention comprises the following steps: the standby assembly comprises an annular filter plate arranged on the outer side of the sliding block, the annular filter plate and the filter layer are positioned on the same horizontal plane, the annular filter plate comprises a fixed filter plate and a movable filter plate, the fixed filter plate is fixedly connected with the sliding block, a filter layer is fixed inside the fixed filter plate, and the movable filter plate and the fixed filter plate are coaxially arranged; the movable filter plate is characterized in that a tooth slot is arranged above the movable filter plate, a rack is meshed with the tooth slot, and the rack is in sliding connection with the sliding block.

As a preferable scheme of the fixed winch hoist detection device, the invention comprises the following steps: the standby assembly further comprises an extension rod and a transmission rod, the extension rod is installed in the middle of the annular filter plate, the transmission rod is installed in the middle of the cooling fan, and friction blocks are fixed on opposite faces of the extension rod and the transmission rod.

The fixed winch hoist detection device has the beneficial effects that: through at collection casing internally mounted corresponding equipment, for example, signal collector, PL etc. when radiator fan work heat dissipation, filter assembly adsorbs the moisture in the gas voluntarily to avoid the influence of moisture to electronic component, and filter assembly has the warning function, in order to remind the staff in time to change the filter layer that absorbs moisture to maximum.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a flow chart of a detection system of a fixed hoist in the present invention.

Fig. 2 is a block diagram of a gate opening value calculation system of the fixed hoist detection system in the present invention.

FIG. 3 is a comparison calculation block diagram of the selected optimal value of the fixed hoist detection system of the present invention.

Fig. 4 is a schematic diagram of a filtering component of the detection device of the fixed winch hoist in the invention.

Fig. 5 is a schematic diagram showing a separation structure of a filtering assembly and a collecting housing of the fixed winch hoist detecting device.

Fig. 6 is a schematic diagram of an explosion structure of a filter of the fixed hoist detecting device in the invention.

Fig. 7 is a schematic top view of a spare assembly of the detection device for the fixed hoist in the present invention.

Fig. 8 is a schematic diagram of a three-dimensional structure of an annular filter plate of the fixed winch hoist detection device in the invention.

In the figure:

100. a collection assembly; 101. a collecting shell; 102. a heat radiation fan;

200. a filter assembly; 201. a positioning piece; 202. a filter; 203. a trigger;

201a, guide plates; 201b, a filter shell; 201c, filtering holes;

202a, sliding blocks; 202b, a filter layer; 202c, positioning rings;

203a, a trigger block; 203b, an abutment block; 203c, compressing a spring;

300. a spare component; 301. an annular filter plate; 302. an extension rod; 303. a transmission rod; 304. a friction block;

301a, fixing a filter plate; 301b, a movable filter plate; 301c, racks.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.

Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1-3, a first embodiment of the present invention provides a fixed hoist inspection system, comprising,

the gate opening value and the load value are respectively measured through the acquisition component, and the acquired information is subjected to data processing and filtering to remove noise and interference;

processing multidimensional data of the measured opening value, comparing and screening, and calculating an average value;

comparing the two measured load values to calculate a difference value;

and selecting the difference value and the optimal gate opening value, and then sending the difference value and the optimal gate opening value to the PLC, and controlling the opening and closing of the gate by the PLC according to a set control strategy.

Further, the acquisition component comprises an acquisition device for acquiring gate data, a processing module for processing the acquired data to obtain an average value and a difference value, and a symptom monitoring PLC for monitoring and analyzing the whole equipment. The collector comprises a first collector and a second collector, wherein the first collector is used for collecting gate opening values and comprises a rotary encoder, a laser gate position meter and a wire pulling gate position meter, and the second collector is used for collecting gate load values and comprises a side pressure type load sensor and a pressure sensitive load sensor. The processing module comprises a signal collector and a PLC, the output ends of the first collector and the second collector are connected with the input end of the signal collector, the signal collector is internally provided with a signal isolator for processing signals, the PLC is used for acquiring data of the signal collector and calculating a gate opening value, and the PLC comprises a load opening instrument for calculating a gate load value.

Specifically, the system is designed to monitor the opening value and the load value of the gate measured by the sensor in real time, ensure the stability and reliability of the gate in the action process, and avoid the gate damage caused by the conditions of not in place regulation, danger caused by unbalance and the like.

In order to achieve the above object, the effectiveness of the gate opening value and the load value is important. Therefore, in the design, it is necessary to use a plurality of sensors to measure the opening value and the load value of the gate at the same time to ensure the reliability of the measured value, and a signal collector is provided to select the optimal value to participate in the gate opening and closing control after the measured value of the sensor is properly processed. In the gate control system, the sensor for measuring the gate opening value comprises a rotary encoder, a laser gate position meter and a wire-pulling gate position meter, wherein the opening value processed by the module is used for displaying the opening value by a liquid crystal display screen, and the opening value is used for uploading the PLC. In order to facilitate data acquisition and uploading, risks caused by data format conversion are avoided, and RS-485 communication is used from the sensor to the signal collector and from the signal collector to the PLC.

Secondly, through rotary encoder, laser gate position meter, wire pulling gate position meter, can measure respectively and obtain three gate aperture values, in order to improve measuring accuracy, avoid interfering, used here to confirm the final gate aperture value that obtains of system by following one kind screening method:

recording three opening values measured by three sensors as A, B, C and setting one allowable deviation value as X, the measurement results are divided into 8 cases:

case 1: i A-B I > X and I A-C I > X and I B-C I > X, the reliability of A, B, C cannot be judged, sending out an alarm signal, and outputting a measured value of the rotary encoder as an opening value;

case 2: if A is unreliable, B or C is output as an opening value;

case 3: if the value of I A-B I is more than X, the value of I A-C I is less than or equal to X, and the value of I B-C I is more than X, B is unreliable, and A or C is output as an opening value;

case 4: if the I A-B I is more than X, the I A-C I is less than or equal to X, the I B-C I is less than or equal to X, the deviation between A and B is considered to be overlarge, and C is output as an opening value;

case 5: if the I A-B I is less than or equal to X, the I A-C I is more than X, the I B-C I is more than X, the C is unreliable, and the A or B is output as an opening value;

case 6: if the I A-B I is less than or equal to X, the I A-C I is more than or equal to X, and the I B-C I is less than or equal to X, the deviation between A and C is considered to be overlarge, and B is output as an opening value;

case 7: if the I A-B I is less than or equal to X, the I A-C I is less than or equal to X, and the I B-C I is more than X, the deviation between B and C is considered to be overlarge, and the A is output as an opening value;

case 8: and if the value of the I A-B is less than or equal to X, the value of the I A-C is less than or equal to X, and the value of the I B-C is less than or equal to X, A, B, C is considered reliable, and A, B or C is output as an opening value.

In the processing module, the acquired three opening values need to be processed, and meanwhile, the single chip microcomputer is adopted to finish the process by considering the format of the input and output signals. After the sensor acquires the gate opening value, the measured value is transmitted to the singlechip in the processing module through the RS-485 interface, the singlechip screens and processes the input load value and the opening value through an operation program, and the optimal value is selected for display and is uploaded to the PLC to participate in gate opening and closing control. Screening methods include screening sensor measurements that have been developed with a fault signal, discarding results that deviate too much from the rest of the measurements, etc.

The pressure-sensitive load meter and the side pressure load meter respectively measure and obtain a group of load values, under normal conditions, the data acquisition device defaults to select the measured value of the pressure-sensitive load meter for output, and when the pressure-sensitive load meter fails, the data acquisition device selects the measured value of the side pressure load meter for output.

In order to ensure normal and safe operation of the gate, the PLC determines whether the gate is in a balanced state by a comparison between a set of input load measurement values and a comparison between a gate opening setting value and an input gate opening measurement value. The specific judgment rule is as follows:

first, the measured values of two gate loads, for example, gate load 1 and gate load 2, are compared, and if the absolute value of their difference is greater than the set allowable deviation, it is considered that there is a possibility that the gate action is unbalanced. In this case, if the absolute value of the difference between the gate opening measurement value and the opening setting value obtained by the foregoing method is also greater than the set allowable deviation, the gate is considered to be in an unbalanced state, the system will start protection, stop the gate opening and closing action, and ensure the gate safety.

In addition, symptom monitoring PLC: the whole equipment can be monitored, analyzed and visualized, and the functions of monitoring the images of the sensor and the signal processor, such as alarming for the change of each state lamp of the sensor, are added. And monitoring data such as motor temperature, current, hoist lifting speed, lifting height, lifting load, brake working state and the like. And monitoring waveform data such as cycle time, equipment action time, temperature, pressure, torque and the like in real time according to the scanning time cycle. And according to the symptom change before the equipment abnormality occurs, an alarm is sent out, and when the symptom alarm or the fault occurs, the soft element with abnormal operation is automatically extracted.

PLC: the opening and closing of the gate are controlled, and the automatic remote control function is realized.

Signal collector: and 3 gate opening signals are collected, 2 gate load signals are collected, signal processing is carried out, and finally 1 gate opening and 1 gate load transmission gate local control unit PLC with reliability is output.

The gate opening measurement is additionally provided with 1 path of laser gate position meter, and 1 path of wire-drawing gate position meter and the existing absolute value rotary encoder form a gate opening sensor measurement layer.

The gate load measurement is additionally provided with a 1-path steel wire rope side pressure type load sensor which is mutually standby with the existing pressure sensitive load sensor.

Example 2

Referring to fig. 4 to 6, in a second embodiment of the present invention, unlike the previous embodiment, a fixed hoist inspection apparatus includes a fixed hoist inspection system, and further includes an acquisition assembly 100 including an acquisition housing 101 and a heat dissipation fan 102 installed inside the acquisition housing 101; the filter assembly 200 comprises a positioning piece 201, a filter piece 202 and a trigger piece 203, wherein the positioning piece 201 is arranged on the outer side of the collecting shell 101 and corresponds to the cooling fan 102, the filter piece 202 is arranged on one side, away from the collecting shell 101, of the positioning piece 201, and the trigger piece 203 is used for driving the filter piece 202 to move to a preset position; a spare assembly 300 mounted on the positioning member 201.

In the embodiment 1, the system is applied to a hydropower station, and the environmental humidity of the hydropower station is high, so that the service life of part of equipment is easily shortened due to the influence of humidity.

To solve the above problems, by installing corresponding devices, such as a signal collector, a PLC, etc., inside the collecting housing 101, when the heat dissipation fan 102 is operated to dissipate heat, the filter assembly 200 automatically absorbs moisture in the air to avoid the influence of the moisture on the electronic components, and the filter assembly 200 has a reminding function to remind a worker to replace the filter layer 202b having the maximum moisture absorption.

Further, the positioning piece 201 includes a guide plate 201a, a filter shell 201b and a filter hole 201c, the filter shell 201b is fixed in the middle of the guide plate 201a, the filter shell 201b is connected with the collecting shell 101 through a bolt, and the filter shell 201b is provided with the filter hole 201c corresponding to the cooling fan 102. The filter 202 comprises a sliding block 202a, a filter layer 202b and a positioning ring 202c, wherein the sliding block 202a is arranged on the outer side of the guide plate 201a in a sliding mode, a filter groove for accommodating the filter layer 202b is formed in the outer side of the sliding block 202a, and the positioning ring 202c is clamped with the filter groove to restrain the filter layer 202b. The trigger piece 203 comprises a trigger block 203a, an abutting block 203b and a compression spring 203c, wherein a first end of the trigger block 203a is in sliding connection with the inner wall of the filter tank, a second end of the trigger block 203a penetrates through the filter layer 202b, the abutting block 203b is movably arranged at the top of the sliding block 202a, the bottom of the abutting block 203b is connected with the trigger block 203a, an extension spring is connected between the abutting block 203b and the sliding block 202a, and two ends of the compression spring 203c are respectively connected with the filter shell 201b and the sliding block 202a.

When in use, the filter layer 202b is positioned in the filter shell 201b, and the filter layer 202b is made of a moisture absorbing material, such as a sponge or a porous activated carbon layer, so that moisture in the gas can be automatically absorbed, and the purpose of drying the gas is achieved, so that the service life of electronic components in the acquisition shell 101 is prolonged;

and the self weight of the filter layer 202b can be correspondingly increased in the process of moisture absorption, when the moisture absorption of the filter layer 202b reaches a preset range, the self weight of the filter layer 202b overcomes the elasticity of an extension spring, so that the filter layer 202b drives the trigger block 203a to move downwards, the trigger block 203a drives the abutting block 203b to move downwards and separate from the abutting filter shell 201b, the sliding block 202a slides under the elasticity of the compression spring 203c, the filter layer 202b slides out of the filter shell 201b, the reminding function is realized for workers, the workers can conveniently replace the filter layer 202b, and meanwhile, the standby component 300 replaces the position of the filter layer 202b, the dehumidification effect is continuously realized, and moisture is prevented from entering the acquisition shell 101.

Second, the filter shell 201b is connected with the collecting shell 101 through bolts, so that the assembly and the disassembly are convenient, and the use is convenient.

The filter holes 201c are arranged to facilitate the flow of the gas, and can perform a preliminary filtering function on impurities in the gas, so that the effect of the filter layer 202b is prevented from being influenced by the adhesion of the impurities on the filter layer 202b.

Example 3

Referring to fig. 5-8, a third embodiment of the present invention further provides a fixed hoist detection device. The standby assembly 300 comprises an annular filter plate 301 arranged outside a sliding block 202a, the annular filter plate 301 and a filter layer 202b are positioned on the same horizontal plane, the annular filter plate 301 comprises a fixed filter plate 301a and a movable filter plate 301b, the fixed filter plate 301a is fixedly connected with the sliding block 202a, a filter layer is fixed inside the fixed filter plate 301a, and the movable filter plate 301b and the fixed filter plate 301a are coaxially arranged; wherein, a tooth slot is arranged above the movable filter plate 301b, a rack 301c is meshed with the tooth slot, and the rack 301c is in sliding connection with the sliding block 202a. The standby assembly 300 further comprises an extension rod 302 and a transmission rod 303, wherein the extension rod 302 is installed in the middle of the annular filter plate 301, the transmission rod 303 is installed in the middle of the radiator fan 102, and friction blocks 304 are fixed on opposite surfaces of the extension rod 302 and the transmission rod 303.

In addition, when the annular filter plate 301 slides inside the filter housing 201b, the rack 301c will abut against the inner wall of the filter housing 201b to slide, and when the rack 301c slides, the engaged movable filter plate 301b will be driven to rotate, so that the annular filter plate 301 is opened to allow air to circulate, that is, when the annular filter plate 301 is located outside the filter housing 201b, the inside of the annular filter plate 301 is in a relatively airtight state, so that the moisture absorption effect of the filter layer is maintained, wherein the filter layer is preferably made of silica gel material.

Meanwhile, the extension rod 302 on the annular filter plate 301 corresponds to the transmission rod 303, so that the two friction blocks 304 are contacted, and the transmission rod 303 is fixed with the power shaft of the cooling fan 102, so that the two friction blocks 304 are rubbed to generate prompt tones, and a double prompt effect is achieved, so that a worker can timely replace a new filter layer 202b.

Second, the friction block 304 is made of an elastic metal or plastic material; a return spring is abutted against one side of the rack 301c so as to apply a return elastic force to the rack 301 c.

It is important to note that the construction and arrangement of the present application as shown in a variety of different exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.

Furthermore, in order to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).

It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.

It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims (10)

1. A fixed hoist type hoist detecting system is characterized in that: comprising the steps of (a) a step of,

respectively measuring a gate opening value and a load value through an acquisition component;

processing a plurality of data of the measured gate opening value, and calculating an average value;

comparing the two measured load values to calculate a difference value;

and selecting the difference value and the optimal gate opening value, and then sending the difference value and the optimal gate opening value to the PLC, and controlling the opening and closing of the gate by the PLC according to a set control strategy.

2. The fixed hoist inspection system of claim 1, characterized in that: the acquisition assembly comprises an acquisition device for acquiring gate data, a processing module for processing the acquired data to obtain an average value and a difference value, and a symptom monitoring PLC for monitoring and analyzing the whole equipment.

3. The fixed hoist inspection system of claim 2, characterized in that: the collector comprises a first collector and a second collector, wherein the first collector is used for collecting gate opening values and comprises a rotary encoder, a laser gate position meter and a wire pulling gate position meter, and the second collector is used for collecting gate load values and comprises a side pressure type load sensor and a pressure sensitive load sensor.

4. The fixed hoist inspection system of claim 3, characterized in that: the processing module comprises a signal collector and a PLC, the output ends of the first collector and the second collector are connected with the input end of the signal collector, the signal collector is internally provided with a signal isolator for processing signals, the PLC is used for acquiring data of the signal collector and calculating a gate opening value, and the PLC comprises a load opening instrument for calculating a gate load value.

5. A fixed hoist type headstock gear detection device is characterized in that: the detection system applied to the fixed winch hoist as claimed in claims 1 to 4 comprises,

a collection assembly (100) comprising a collection housing (101) and a heat dissipation fan (102) mounted inside the collection housing (101);

the filter assembly (200) comprises a positioning piece (201), a filter piece (202) and a trigger piece (203), wherein the positioning piece (201) is arranged on the outer side of the collecting shell (101) and corresponds to the cooling fan (102), the filter piece (202) is arranged on one side, far away from the collecting shell (101), of the positioning piece (201), and the trigger piece (203) is used for driving the filter piece (202) to move to a preset position;

a spare assembly (300) mounted on the positioning member (201).

6. The fixed hoist inspection device of claim 5, characterized in that: the locating piece (201) comprises a guide plate (201 a), a filter shell (201 b) and a filter hole (201 c), wherein the filter shell (201 b) is fixed in the middle of the guide plate (201 a), the filter shell (201 b) is connected with the collecting shell (101) through a bolt, and the filter shell (201 b) is provided with the filter hole (201 c) corresponding to the cooling fan (102).

7. The fixed hoist inspection device of claim 6, characterized in that: the filter piece (202) comprises a sliding block (202 a), a filter layer (202 b) and a positioning ring (202 c), wherein the sliding block (202 a) is arranged on the outer side of the guide plate (201 a) in a sliding mode, a filter groove for accommodating the filter layer (202 b) is formed in the outer side of the sliding block (202 a), and the positioning ring (202 c) is clamped with the filter groove to restrain the filter layer (202 b).

8. The fixed hoist inspection device of claim 7, characterized in that: the trigger piece (203) comprises a trigger block (203 a), an abutting block (203 b) and a compression spring (203 c), wherein a first end of the trigger block (203 a) is in sliding connection with the inner wall of the filter tank, a second end of the trigger block (203 a) penetrates through the filter layer (202 b), the abutting block (203 b) is movably arranged at the top of the sliding block (202 a), the bottom of the abutting block (203 b) is connected with the trigger block (203 a), an extension spring is connected between the abutting block (203 b) and the sliding block (202 a), and two ends of the compression spring (203 c) are respectively connected with a filter shell (201 b) and the sliding block (202 a).

9. The fixed hoist inspection device of claim 8, characterized in that: the standby assembly (300) comprises an annular filter plate (301) arranged on the outer side of the sliding block (202 a), the annular filter plate (301) and the filter layer (202 b) are located on the same horizontal plane, the annular filter plate (301) comprises a fixed filter plate (301 a) and a movable filter plate (301 b), the fixed filter plate (301 a) is fixedly connected with the sliding block (202 a), a filter layer is fixed inside the fixed filter plate (301 a), and the movable filter plate (301 b) and the fixed filter plate (301 a) are coaxially arranged;

the movable filter plate (301 b) is provided with tooth grooves above, racks (301 c) are meshed with the tooth grooves, and the racks (301 c) are in sliding connection with the sliding blocks (202 a).

10. The fixed hoist inspection device of claim 9, characterized in that: the standby assembly (300) further comprises an extension rod (302) and a transmission rod (303), wherein the extension rod (302) is installed at the middle part of the annular filter plate (301), the transmission rod (303) is installed at the middle part of the cooling fan (102), and friction blocks (304) are fixed on opposite surfaces of the extension rod (302) and the transmission rod (303).