CN107553114B - Online detection and fastening device for bolts of wind generating set - Google Patents
Online detection and fastening device for bolts of wind generating set Download PDFInfo
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- CN107553114B CN107553114B CN201710790330.9A CN201710790330A CN107553114B CN 107553114 B CN107553114 B CN 107553114B CN 201710790330 A CN201710790330 A CN 201710790330A CN 107553114 B CN107553114 B CN 107553114B
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- 238000001514 detection method Methods 0.000 title claims abstract description 78
- 230000033001 locomotion Effects 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 239000003973 paint Substances 0.000 claims description 12
- 239000003550 marker Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 3
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- 238000012423 maintenance Methods 0.000 description 8
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model provides a wind generating set bolt detects and fastener on line which characterized in that: the device mainly comprises two systems, a bolt detection system, a fastening system and a motion system; the bolt detection and fastening system mainly comprises a detection and fastening device and a torque output device; the motion system mainly comprises a power mechanism, a chain transmission mechanism and a motion stop block. The invention also has a self-moving system which can realize automatic operation and automatically complete work tasks. The working strength of engineering technicians is reduced. In addition, the invention is also provided with a powerful auxiliary system, such as a remote monitoring system: engineering technicians can remotely control and monitor equipment operation, damage marking and alarm systems: and when the equipment finds out the damaged bolt, alarming and marking the damaged position. By combining the traditional detection technology with the motion mechanical technology, the quick detection and fastening operation of the tower bolt of the wind generating set is realized.
Description
Technical Field
The invention relates to an on-line detection and fastening device for bolts of a wind generating set.
Background
The bolt connection has the advantages of lower process requirements, simple structure, convenient assembly and disassembly, reliable structure and high strength, and is a mechanical part with extremely wide application. Various bolts are available on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters, and articles, etc.
However, for major engineering and heavy machinery, the problem of detecting and preventing loosening of bolts has become a major scientific bottleneck worldwide. Because the number of bolts is very large for large and medium-sized wind generating sets, and the bolts are usually positioned at a narrow position which is not easy to check or at a dangerous position with high risk.
According to the domestic and foreign references, the wind generating set is easy to have a plurality of common problems, such as loosening of flange screws and the like. However, in the current wind power generation field, the detection and fastening of bolts by using an automatic device are still blank, and most of the bolt detection and fastening methods at home and abroad are completed by using manpower. Because wind generating set is too high, huge risk and difficulty are caused for maintenance personnel to overhaul. Because the wind generating set works in severe environments such as the field, the insolation, the thunderstorm and the like for a long time, the damage rate of the wind generating set is up to 40% -50%. Meanwhile, as the maintenance technology of the wind power generation equipment cannot keep pace with the development speed of wind power generation, once key parts (such as gears, bearings, blades and the like) of the wind power generation equipment fail, the equipment is damaged, a generator is stopped, and serious economic loss is caused.
In order to ensure reliable and stable operation of the wind power generation system, reduce the maintenance cost of the system, it is necessary to ensure that each bolt is in the standard torque range. At present, domestic wind power generation enterprises still detect fastening bolts one by one through manual climbing. The personnel climbing detection mainly adopts simple spanner detection, and the detection degree of difficulty is high, and is efficient, and in addition because it is that its efficiency of manual detection and precision are all difficult to ensure, and receive the objective factor influence of weather great, receive environment and engineering technician's level restriction, detect and fastening quality is difficult to guarantee. And the maintenance technology is complex, the workload is large, the construction period is long, the consumption of equipment is large, the cost is high, or great adjustment is required to be made on system equipment.
Disclosure of Invention
The invention aims to:
the invention provides an on-line detection and fastening device for bolts of a wind generating set, and aims to solve the problems existing in the past.
The technical scheme is as follows:
the device mainly comprises two systems, a bolt detection and fastening system and a motion system; the bolt detection and fastening system mainly comprises a detection and fastening device and a torque output device; the motion system mainly comprises a power mechanism, a chain transmission mechanism and a motion stop block;
the bolt detection and fastening system and the motion system are both connected to a PLC controller, and the PLC controller is connected to a field computer through a field bus and a field bus converter.
The torque output device comprises a swing rod I, a rotating bent rod, a swing rod II and a fastening stepping motor; the fastening stepping motor is connected with one ends of the first swing rod and the second swing rod through a rotating bent rod; the other ends of the swing rod I and the swing rod II are connected to a detection and fastening device; the first swing rod swings in the opposite direction to the second swing rod by fastening the stepping motor and rotating the curved rod;
the detection and fastening device comprises a rotating main shaft, a spline sleeve, an upper outer rotating body and a lower outer rotating body, wherein the lower end of the upper outer rotating body extends into the lower outer rotating body, the upper outer rotating body and the lower outer rotating body can rotate relatively, the upper part of the rotating main shaft is connected with a swing rod I through an upper ratchet mechanism, the lower part of the rotating main shaft penetrates through the spline sleeve and extends into a cavity formed by connecting the upper outer rotating body and the lower outer rotating body, an upper cavity of the fastening device is formed at the bottom end of the rotating main shaft, a lower cavity of the fastening device is formed at the bottom of the lower outer rotating body, and the lower cavity of the fastening device is arranged below and corresponds to the upper cavity of the fastening device; below the lower cavity of the fastening device is a station of the corresponding bolt-!
The lower part of the spline housing is sleeved on the upper part of the upper external rotating body and is in key fit with the upper external rotating body, so that the spline housing and the upper external rotating body can move relatively in the axial direction, (namely, the axial direction of the rotating main shaft) the upper part of the spline housing is sleeved on the periphery of the upper part of the rotating main shaft, a key housing which can be matched with a key on the upper part of the spline housing is arranged on the upper part of the rotating main shaft, a lower ratchet mechanism is sleeved on the periphery of the lower part of the spline housing, the lower ratchet mechanism is connected with a second swinging rod, an external spline is arranged on the lower part of the spline housing, after the spline housing rises, the upper end of the spline housing is separated from the key housing, simultaneously, the external spline on the lower part of the spline housing is in key engagement with the lower ratchet mechanism to complete connection, so that the spline housing is interlocked with the lower ratchet mechanism, and after the spline housing descends, the upper end of the spline housing is in key engagement with the spline housing to enable the key housing to rotate together with the rotating main shaft, and simultaneously, the external spline on the lower part of the spline housing is separated from the lower ratchet mechanism;
the device also comprises a sensor and a fastening controller, wherein the sensor is connected with the fastening stepping motor and the controller, the fastening stepping motor is connected with the PLC control system, the sensor is a torque sensor, the torque sensor is arranged on the first swing rod and the second swing rod, and the torque sensor is arranged close to the upper ratchet mechanism and the lower ratchet mechanism (shown in figures 12 and 13). 36 in fig. 12 is a signal transmission wire lead-out hole. When the force monitored by the sensor reaches a given value, the fastening action is completed, and then the control system controls the electromagnetic controller to adjust the position of the electromagnetic shifting fork, so that the meshing state of the gear sleeve is changed, and then the two working states, namely the same-direction fastening and reverse loosening of the bolt, are switched.
The upper part of the spline housing is connected with an electromagnetic fork controller through a first fork, and the electromagnetic fork controller realizes the ascending and descending movement of the spline housing along the axial direction of the rotary main shaft. The first shifting fork is controlled by the fastening controller.
The upper portion of the lower outer rotating body is connected with the sliding block through the shifting fork II, the sliding block is sleeved on the screw rod and is in threaded fit with the screw rod, the screw rod is connected with the lifting stepping motor through the bevel gear, the sliding block is controlled to axially lift along the screw rod through the lifting stepping motor, and then the lifting of the whole fastening device is completed. The second shifting fork is controlled by the fastening controller.
The motion system is connected with a base at the bottom of the bolt detection and fastening system and mainly comprises a power system, a transmission chain and a motion stop block; the power system is connected with and drives a transmission ring formed by a transmission chain, the motion check blocks are arranged on the periphery of the transmission chain in sequence, when the transmission chain is used, the transmission ring is formed by running through the support of a plurality of tensioning chain wheels according to a certain path, and after the motion check blocks are contacted with the bolts, the motion check blocks can drive the base and the bolts to form relative motion, so that the aim of driving the whole device to run forwards is achieved. Here, the stopper is moved in the direction of the arrangement of the bolts by the reaction force after encountering the bolts.
The fixed sleeve of the upper body of the outer rotating body is connected to the dust cover 8, and the dust cover 8 is connected with the base of the main body of the equipment, so that the fastening device is connected with the base of the main body of the equipment.
And a position sensor for monitoring the position of the bolt is arranged on the side surface of the corresponding bolt station below the lower cavity of the fastening device, and is connected to a position controller, and the position controller is connected with a power system and a PLC control system.
The system also comprises an auxiliary system, wherein the auxiliary system comprises a flaw detection system, a paint spraying positioning instrument, a damage marking instrument, an alarm system and a controller; flaw detection system, spray paint locater and damage marker all set up the side at the bolt station that the fastener lower extreme corresponds, and flaw detection system, spray paint locater and damage marker all are connected to auxiliary controller, and auxiliary controller is connected to PLC control system.
The advantages and effects are that:
the invention provides an on-line detection and fastening device for bolts of a wind generating set, which aims at solving the problems of loosening and fastening of bolts and detection and alarm of damage of bolts of large and medium-sized wind generating sets and guaranteeing the reliability and safety of the wind generating sets. The detection technology and the motion mechanical technology and the remote control technology are innovatively integrated. The problem of bolt detection and fastening of the wind generating set is solved in a breakthrough manner. The invention can detect and fasten the bolts of the wind generating set one by one, can keep the equipment in an optimal state and prolong the service life of the fan. But also solves the problems of insufficient maintenance and excessive maintenance existing in manual regular maintenance. Because a large amount of manpower can be saved, the safety of personnel is ensured, and the maintenance cost is reduced. Today, the wind energy industry is vigorously developed, the equipment has a wide undischvered market, and a simple and convenient bolt detection fastening method is helpful for the wind energy industry to be more widely promoted. The development of the bolt detection and fastening device is necessary, and the prospect is long and clear. The invention also particularly designs a bolt major damage marking alarm device, effectively solves the problems, and is also provided with a wireless transmission device, thereby realizing technical breakthroughs such as real-time interaction, information communication, real-time control and the like of flaw detection equipment and engineering technicians. Fills the blank of the technical field in China. The invention adopts a mode of detecting and fastening one by one, and because the bolts in the tower of the wind generating set are numerous and the space is narrow, the conventional detecting and fastening means mainly detect and fasten one by one manually, and the high-efficiency, quick and full-coverage detecting and fastening requirements are difficult to meet.
The invention also has a self-moving system which can realize automatic operation and automatically complete work tasks. The working strength of engineering technicians is reduced. In addition, the invention is also provided with a powerful auxiliary system, such as a remote monitoring system: engineering technicians can remotely control and monitor equipment operation, damage marking and alarm systems: and when the equipment finds out the damaged bolt, alarming and marking the damaged position. By combining the traditional detection technology with the motion mechanical technology, the quick detection and fastening operation of the tower bolt of the wind generating set is realized.
Description of the drawings:
FIG. 1 is a schematic diagram of detection;
FIG. 2 is a schematic diagram of the detection;
FIG. 3 is an overall view of the device;
FIG. 4 is a torque output device;
FIG. 5 is a bolt detection and tightening apparatus;
FIG. 6 is a schematic diagram of an upper ratchet mechanism;
FIG. 7 is a schematic diagram of a lower ratchet mechanism;
FIG. 8 is a first state of the fastening device of the bolt detecting and fastening device;
FIG. 9 is a second state of the fastening device of the bolt detection and fastening device;
FIG. 10 is a schematic diagram of a motion system; wherein 10-1 is a system use state diagram, and 10-2 is a main component diagram of the motion system; 10-3 is a side view of the main components of the system;
FIG. 11 is an information and control flow diagram;
FIG. 12 is an enlarged schematic view of a torque sensor;
FIG. 13 is a schematic illustration of a specific location of torque sensor installation;
the specific embodiment is as follows:
the invention provides an on-line detection and fastening device for bolts of a wind generating set, which is characterized in that: the device mainly comprises two systems, a bolt detection system, a fastening system and a motion system; the bolt detection and fastening system mainly comprises a detection and fastening device and a torque output device; the motion system mainly comprises a power mechanism, a chain transmission mechanism and a motion stop block;
the bolt detection and fastening system and the motion system are both connected to a PLC controller, and the PLC controller is connected to a field computer through a field bus and a field bus converter.
The torque output device comprises a swing rod I1, a rotary curved rod 2, a swing rod II 3 and a fastening stepping motor 4; the fastening stepping motor 4 is connected with one ends of the swing rod 1 and the swing rod 3 through the rotating bent rod 2; the other ends of the swing rod I and the swing rod II 3 are connected to a detection and fastening device; the first swing rod 1 and the second swing rod 3 swing in opposite directions by fastening the stepping motor 4 and rotating the curved rod 2;
the detection and fastening device comprises a rotating main shaft 11, a spline sleeve 19, an upper outer rotating body 12 and a lower outer rotating body 16, wherein the lower end of the upper outer rotating body 12 extends into the lower outer rotating body 16, the upper outer rotating body 12 and the lower outer rotating body 16 can rotate relatively, the upper part of the rotating main shaft 11 is connected with a swing rod 1 through an upper ratchet mechanism 10, the lower part of the rotating main shaft 11 extends into a cavity formed by connecting the upper outer rotating body 12 and the lower outer rotating body 16 through the spline sleeve 19, an upper fastening device cavity 17 is formed at the bottom end of the rotating main shaft 11, a lower fastening device cavity 18 is formed at the bottom of the lower outer rotating body 16, and the lower fastening device cavity 18 is arranged below and corresponds to the upper fastening device cavity 17; below the lower chamber 18 of the fastening device is the station of the corresponding bolt-!
The lower part of the spline housing 19 is sleeved on the upper part of the upper external rotating body 12, the spline housing 19 is matched with the upper external rotating body 12 through keys, so that the spline housing 19 and the upper external rotating body 12 can axially and relatively move, (namely, the axial direction of the rotating main shaft 11) the upper part of the spline housing 19 is sleeved on the periphery of the upper part of the rotating main shaft 11, a spline housing 21 which can be matched with the keys on the upper part of the spline housing 19 is arranged on the upper part of the rotating main shaft 11, a lower ratchet mechanism 13 is sleeved on the periphery of the lower part of the spline housing 19, the lower ratchet mechanism 13 is connected with a swinging rod II 3, an external spline 7 is arranged on the lower part of the spline housing 19, after the spline housing 19 ascends, the upper end of the spline housing 19 is separated from the spline housing 21, and simultaneously, the external spline 7 on the lower part of the spline housing 19 is completely meshed with the lower ratchet mechanism 13 through keys, so that the spline housing 19 is interlocked with the lower ratchet mechanism 13, and after the spline housing 19 descends, the upper end of the spline housing 19 is meshed with the spline housing 21 through keys so that the spline housing 19 rotates together with the rotating main shaft 11, and simultaneously, the external spline 7 on the lower part of the spline housing 19 is separated from the lower ratchet mechanism 13 through the separation and completely meshed with the lower ratchet mechanism 13;
the device also comprises a sensor and a fastening controller, wherein the sensor is connected with the fastening stepping motor 4 and the controller, the fastening stepping motor 4 is connected with the PLC control system, the sensor is a torque sensor 35, the torque sensor 35 is arranged on the swing rod I1 and the swing rod II 3 and is arranged close to the upper ratchet mechanism 10 and the lower ratchet mechanism 13 (shown in figures 12 and 13). 36 in fig. 12 is a signal transmission wire lead-out hole. When the force monitored by the sensor reaches a given value, the fastening action is completed, and then the control system controls the electromagnetic controller to adjust the position of the electromagnetic shifting fork, so that the meshing state of the gear sleeve is changed, and then the two working states, namely the same-direction fastening and reverse loosening of the bolt, are switched.
The upper part of the spline housing 19 is connected with an electromagnetic fork controller 22 through a fork one 23, and the ascending and descending movement of the spline housing 19 along the axial direction of the rotary main shaft 11 is realized through the electromagnetic fork controller 22. The first shifting fork (23) is controlled by a fastening controller.
The upper part of the lower outer rotating body 16 is connected with a sliding block 25 through a shifting fork II 27, the sliding block 25 is sleeved on a lead screw 28 and is in threaded fit with the lead screw 28, the lead screw 28 is connected with a lifting stepping motor 24 through a bevel gear, and the sliding block 25 is controlled to axially lift along the lead screw 28 through the lifting stepping motor 24, so that the lifting of the whole fastening device is completed. And the second shifting fork (27) is controlled by a fastening controller.
A base 37 at the bottom of the detection and fastening system for the connecting bolts of the moving system, wherein the moving system mainly comprises a power system 30, a transmission chain 33 and a moving stop block 31; the power system 30 is connected with and drives a transmission ring formed by a transmission chain 33, the motion stop block 31 is arranged on the periphery of the transmission chain 33 in sequence, the transmission chain 33 runs to form the transmission ring according to a certain path through the support of a plurality of tensioning chain wheels 29 when in use, and after the motion stop block contacts with a bolt, the motion stop block drives the base and the bolt to form relative motion, so that the aim of driving the whole device to run forwards is achieved. Here, the stopper is moved in the direction of the arrangement of the bolts by the reaction force after encountering the bolts.
The fixed sleeve of the upper body of the outer rotating body is connected to the dust cover 8, and the dust cover 8 is connected with the base of the main body of the equipment, so that the fastening device is connected with the base of the main body of the equipment.
A position sensor 39 for monitoring the position of the bolt is provided on the side of the corresponding bolt station below the lower chamber 18 of the fastening device, which position sensor 39 is connected to a position controller, which connects the power system 30 and the PLC control system.
The system also comprises an auxiliary system, wherein the auxiliary system comprises a flaw detection system, a paint spraying positioning instrument 38, a damage marking instrument, an alarm system and a controller; flaw detection system, spray paint positioner 38 and damage marker all set up the side at the bolt station that corresponds below fastener lower chamber 18, and flaw detection system, spray paint positioner 38 and damage marker all are connected to auxiliary controller, and auxiliary controller is connected to PLC control system.
The invention is described in further detail below with reference to the accompanying drawings:
the detection principle is shown in figures 1 and 2,
the invention adopts an embedded one-by-one detection fastening mode, utilizes the structural characteristics of the equipment, directly embeds the bolts into the equipment during installation and debugging, and utilizes the shape lock between the bolts and the equipment to realize the fixation and operation of the equipment. The motion system of the invention mainly comprises a stepping motor, a chain transmission mechanism and a motion stop block. The movement mechanism enables the whole equipment to reach a designated working position, then the detection and fastening device is used for operation, if the bolt is found to be loose, the fastening is performed, and if the damage is found, the alarm and the marking are performed. The device detects and fastens each bolt one by one until all work tasks are completed.
The detailed description of the mechanical device is shown in fig. 3:
the invention can be roughly divided into three systems, namely a bolt detection and fastening system: mainly comprises a detecting and fastening device, a torque output device and a position control device. Motion system: mainly comprises a power mechanism, a chain transmission mechanism and a movement stop block. Auxiliary system: the system comprises a damage alarm and marking system, a remote monitoring and control system, a damage bolt positioning marking system and the like.
The bolt fastening system is shown in fig. 4 and 5, the position control system is simple in structure, the lifting stepping motor 24 drives the screw rod to rotate, and accordingly the slide block 25 drives the shifting fork II 27 to move up and down linearly, and the upper and lower positions of the device are controlled, so that the nut clamping and loosening operation of the upper cavity 17 and the lower cavity 18 of the fastening device is achieved. The first fork 23 is controlled by the electromagnetic fork controller 22, thereby controlling the operating state of the device.
The bolt fastening system mainly comprises a torque output device, a bolt detection fastening device and a position control device.
The torque output device is shown in fig. 4, torque is output to the rotary curved bar 2 by the stepping motor 4, and is transmitted to the bolt detection and fastening device in fig. 5 by the swing rod 1 and the swing rod 3.
Note that: in fig. 5, 8 is a dust cover, and 5 is a swing rod supporting block.
The torque is transmitted to the upper ratchet mechanism 10 and the lower ratchet mechanism 13 through the first swing rod and the second swing rod by the torque output device, and the reciprocating swing motion of the swing rod can be converted into the rotation of the fastening device through the ratchet device, so that the purpose of rotating the fastening bolt is achieved.
The principle of the bolt detection and fastening device is as shown in fig. 8:
first the device is in state one, i.e. the upper end spline 20 of the spline housing 19 is in engagement with the spline of the key housing on the rotating spindle 11. The internal splines 29 of the lower ratchet mechanism 13 are not engaged with the external splines 30 of the spline housing. The inner spline 6 at the lower end of the spline housing is always meshed with the upper part of the outer cavity of the outer rotary body 12 of the fastening device.
Torque is transmitted to the rotary main shaft 11 through the first swing rod, is transmitted to the spline housing 19 through the spline, is transmitted to the upper outer rotary body 12 through the spline housing, and is finally transmitted to the lower outer rotary body 16 through the spline 14 at the joint of the upper outer rotary body 12 and the lower outer rotary body 16.
In this way, the same rotation of the upper chamber 17 and the lower chamber 18 of the fastening device is achieved, i.e. the same direction tightening of the double nut.
When the device is in the second state, as shown in fig. 9, the upper spline 20 of the spline housing 19 is disengaged from the spline of the spline housing 21 on the rotating spindle. The internal spline 29 of the lower ratchet mechanism is engaged with the external spline at the lower end of the spline housing. The inner spline 6 at the lower end of the spline housing is always meshed with the outer cavity of the upper outer rotating body 12 of the fastening device.
The torque is transmitted to the rotary main shaft 11 through the first swing rod, and then is transmitted to the nut fastening upper cavity 17 through the spline at the joint of the upper part and the lower part of the main shaft.
The torque is transmitted to the lower ratchet mechanism through the second swing rod, then transmitted to the spline housing 19 through the internal spline of the ratchet housing, then transmitted to the upper outer rotating body 12 through the spline housing, and finally transmitted to the lower outer rotating body 16 through the spline.
The second state realizes the reverse rotation of the upper cavity and the lower cavity of the fastening device, namely the reverse anti-loosening screwing process of the double nuts. The switching between the first state and the second state is detected by a torque sensor, and the system is automatically controlled by the electromagnetic fork controller 22.
Motion system:
motion system: mainly comprises a power system, a chain transmission system and a movement stop block.
The working principle of the motion system is mainly that the torque output by a stepping motor is transmitted to a chain transmission mechanism through a chain wheel, the transmission chain is supported by a plurality of tensioning chain wheels to run according to a certain path, and motion stop blocks are arranged on the transmission chain according to a certain interval. When the motion stop block is contacted with the bolt, the motion stop block can drive the whole equipment and the bolt to form relative motion, so that the aim of forward running of the mechanical equipment is fulfilled.
Introduction of auxiliary systems:
in order to better complete engineering tasks, the invention is provided with a plurality of powerful auxiliary systems besides the main working system.
For example, the camera probe remote monitoring system is mainly used for checking whether the surface of the bolt is rusted, partially falls off, seriously dirty and the like. The marking and alarming system is mainly used for marking and alarming bolts which cannot be solved by equipment such as serious rust and damage, so that engineering technicians can conveniently and rapidly determine the problem bolts. Once alarm detection and fastening device pauses all actions, waiting for engineering technician instructions. And spraying red marking paint to the damaged part for marking. The marking paint is special paint, can be automatically decomposed along with the time, and cannot pollute equipment.
The operation process of the bolt on-line detection and fastening device is described as follows:
in the practical application process, first, the engineering technician needs to install the mechanical equipment at the starting position of the flange plate of the bolt to be detected and fastened. The installation requirements are as follows: the relative position accuracy of each mechanical device is ensured. And debugging is carried out, and whether each component works normally, and whether the working state of the sensor and information transmission are smooth or not is detected.
After the installation and debugging are finished, normal detection and fastening work can be performed.
Firstly, the motion system acts until the detection and fastening device reaches the working position. Then the screw rod sliding block mechanism acts, the detection and fastening device is buckled with the nut, and the electromagnetic shifting fork is used for controlling the screw rod sliding block mechanism to complete two working states. After the detection and fastening work is completed, the detection and fastening device is reset.
Step two: the movement device continues to move forward until the detection and fastening device reaches the next working position.
And repeating the first step and the second step, so that detection and fastening of all bolts can be completed.
Claims (4)
1. The utility model provides a wind generating set bolt detects and fastener on line which characterized in that: the device comprises two systems, a bolt detection and fastening system and a motion system; the bolt detection and fastening system comprises a detection and fastening device and a torque output device; the motion system comprises a power mechanism, a chain transmission mechanism and a motion stop block;
the bolt detection and fastening system and the motion system are connected to a PLC controller, and the PLC controller is connected to a field computer through a field bus and a field bus converter;
the torque output device comprises a first swing rod (1), a rotating curved rod (2), a second swing rod (3) and a fastening stepping motor (4); the fastening stepping motor (4) is connected with one end of the swing rod I (1) and one end of the swing rod II (3) through the rotating bent rod (2); the other ends of the swing rod I (1) and the swing rod II (3) are connected to a detection and fastening device; the swing rod I (1) and the swing rod II (3) swing in opposite directions by fastening the stepping motor (4) and rotating the bent rod (2);
the detection and fastening device comprises a rotating main shaft (11), a spline sleeve (19), an upper outer rotating body (12) and a lower outer rotating body (16), wherein the lower end of the upper outer rotating body (12) stretches into the lower outer rotating body (16), the upper outer rotating body (12) and the lower outer rotating body (16) can rotate relatively, the upper part of the rotating main shaft (11) is connected with a swing rod I (1) through an upper ratchet mechanism (10), the lower part of the rotating main shaft (11) stretches into a cavity formed by connecting the upper outer rotating body (12) and the lower outer rotating body (16) through the spline sleeve (19), an upper fastening device cavity (17) is formed at the bottom end of the rotating main shaft (11), a lower fastening device cavity (18) is formed at the bottom of the lower outer rotating body (16), and the lower fastening device cavity (18) is arranged below and corresponds to the upper fastening device cavity (17);
the lower part of the spline housing (19) is sleeved on the upper part of the upper external rotating body (12) and is in key fit with the upper external rotating body (12), so that the upper end of the spline housing (19) can be axially moved relatively with the spline housing (12), the upper part of the spline housing (19) is sleeved on the periphery of the upper part of the rotating main shaft (11), a spline housing (21) which can be matched with a key on the upper part of the spline housing (19) is arranged on the upper part of the rotating main shaft (11), a lower ratchet mechanism (13) is sleeved on the periphery of the lower part of the spline housing (19), the lower ratchet mechanism (13) is connected with the swing rod (3), the lower part of the spline housing (19) is provided with an external spline (7), after the spline housing (19) ascends, the upper end of the spline housing (19) is separated from the spline housing (21), and simultaneously, the external spline (7) on the lower part of the spline housing (19) is meshed with the lower ratchet mechanism (13) in a key engagement mode, so that the spline housing (19) is interlocked with the lower ratchet mechanism (13) is meshed with the spline housing (13), and the upper end of the spline housing (19) is meshed with the spline housing (13) in a key engagement mode;
the device also comprises a sensor and a fastening controller, wherein the sensor is connected with the fastening stepping motor (4) and the controller, the fastening stepping motor (4) is connected with the PLC control system, the sensor is a torque sensor (35), the torque sensor (35) is arranged on the swing rod I (1) and the swing rod II (3) and is arranged at a position close to the upper ratchet mechanism (10) and the lower ratchet mechanism (13);
the upper part of the spline housing (19) is connected with an electromagnetic fork controller (22) through a fork I (23), and the electromagnetic fork controller (22) realizes the ascending and descending movement of the spline housing (19) along the axial direction of the rotary main shaft (11);
a base (37) at the bottom of the detection and fastening system of the connecting bolt of the moving system, wherein the moving system consists of a power system (30), a transmission chain (33) and a moving stop block (31); the power system (30) is connected with and drives a transmission ring formed by a transmission chain (33), the motion stop blocks (31) are sequentially arranged on the periphery of the transmission chain (33), when the device is used, the transmission chain (33) runs through the support of the tensioning chain wheels (29) according to a certain path to form the transmission ring, and after the motion stop blocks are contacted with the bolts, the motion stop blocks can drive the base and the bolts to form relative motion, so that the aim of driving the whole device to run forwards is achieved.
2. The wind turbine generator system bolt on-line detection and fastening device according to claim 1, wherein: the upper part of the lower outer rotating body (16) is connected with a sliding block (25) through a shifting fork II (27), the sliding block (25) is sleeved on a screw rod (28) and is in threaded fit with the screw rod (28), the screw rod (28) is connected with a lifting stepping motor (24) through a bevel gear, and the sliding block (25) is controlled to axially lift along the screw rod (28) through the lifting stepping motor (24), so that the lifting of the whole fastening device is completed.
3. The wind turbine generator system bolt on-line detection and fastening device according to claim 1, wherein: a position sensor (39) for monitoring the position of the bolt is arranged on the side surface of the corresponding bolt station below the lower cavity (18) of the fastening device, and the position sensor (39) is connected to a position controller which is connected with a power system (30) and a PLC control system.
4. A wind turbine generator system bolt on-line detection and fastening device according to claim 1, 2 or 3, wherein: the system also comprises an auxiliary system, wherein the auxiliary system comprises a flaw detection system, a paint spraying positioning instrument (38), a damage marking instrument, an alarm system and a controller; flaw detection system, spray paint locater (38) and damage marker all set up the side at the bolt station that corresponds below fastener lower chamber (18), and flaw detection system, spray paint locater (38) and damage marker all are connected to auxiliary controller, and auxiliary controller is connected to PLC control system.
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| CN201710790330.9A CN107553114B (en) | 2017-09-05 | 2017-09-05 | Online detection and fastening device for bolts of wind generating set |
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| CN201710790330.9A CN107553114B (en) | 2017-09-05 | 2017-09-05 | Online detection and fastening device for bolts of wind generating set |
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| CN110044281A (en) * | 2019-05-23 | 2019-07-23 | 安徽赛安安全设备有限责任公司 | Devices and methods therefor for the detection of fastener elasticity |
| CN110144782B (en) * | 2019-06-05 | 2021-02-09 | 江苏谷德运维信息技术有限公司 | Rail stability detection device |
| CN110145529A (en) * | 2019-06-10 | 2019-08-20 | 龙奎 | A kind of electronic connection bolt |
| CN112027508B (en) * | 2020-08-03 | 2022-04-15 | 山西煤矿机械制造股份有限公司 | Fastening device and scraper conveyor nut fastening system |
| CN111946720B (en) * | 2020-08-07 | 2021-09-17 | 宁波先端轻量化科技有限公司 | Fixing bolt for automobile air conditioner |
| CN114427929B (en) * | 2022-01-25 | 2023-06-06 | 华中科技大学 | Alarm method, system and terminal for monitoring looseness of wind turbine tower bolt |
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