CN215486389U - Accelerated Life and Environmental Corrosion Simulation Test Bed of Offshore Wind Power Cluster Gearbox - Google Patents
Accelerated Life and Environmental Corrosion Simulation Test Bed of Offshore Wind Power Cluster Gearbox Download PDFInfo
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- CN215486389U CN215486389U CN202121391686.3U CN202121391686U CN215486389U CN 215486389 U CN215486389 U CN 215486389U CN 202121391686 U CN202121391686 U CN 202121391686U CN 215486389 U CN215486389 U CN 215486389U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to an accelerated life and environmental corrosion simulation test bed for an offshore wind power cluster gearbox, which is characterized by comprising a machine base, a worm and gear driving assembly, a gearbox transmission mechanism and a shaft bending loading mechanism, wherein the worm and gear driving assembly is arranged on the machine base; the worm and gear driving assembly comprises a motor, a motor base, a coupler, a worm, a left bearing, a right bearing, a left bearing seat, a right bearing seat, an upper worm gear and a lower worm gear; the motor is fixed on the base through the motor base, the motor is connected with the worm through the coupling, the worm is connected with the left bearing seat and the right bearing seat through the left bearing and the right bearing respectively, the left bearing seat and the right bearing seat are fixed on the base through bolts, and two upper worm wheels on the upper side of the worm and two lower worm wheels on the lower side of the worm form worm and gear transmission; the test bed can simulate a severe environment and simultaneously perform accelerated life degradation tests of a plurality of gear boxes, and provides reliable test basis for improving intelligent operation and maintenance level of offshore wind power clusters.
Description
The technical field is as follows:
the utility model relates to an accelerated life and environmental corrosion simulation test bed for an offshore wind power cluster gearbox, and belongs to the technical field of accelerated life tests of rotary machines.
Background art:
the offshore wind power cluster works in a severe marine environment for a long time, and compared with a land wind power cluster, more complex natural working conditions bring more challenges to the operation and maintenance of the offshore wind power cluster; the gearbox is used as a key transmission part of an offshore wind turbine generator system, and the offshore wind power is changed continuously, so that the gearbox is easy to damage due to frequent impact, and high maintenance cost is generated.
Therefore, the simulation test bed for the accelerated life and the environmental corrosion of the offshore wind power cluster gear box can be used for simultaneously simulating the life degradation states of a plurality of gear boxes in a severe ocean environment, and the simulation test bed has an important significance for building an offshore wind power cluster intelligent operation and maintenance system.
The multiple wind turbines in the same wind power cluster are usually in an approximate working condition, the service life degradation of the wind turbines has certain similarity, and the collection of performance degradation data of the multiple wind turbines in the approximate working condition is particularly important; at present, the performance degradation device of the gearbox can only carry out the performance degradation test on one gearbox simultaneously, and can not test a plurality of gearboxes simultaneously, and the axle is crooked as a common gearbox fault mode, and the simulation test of the crooked change process of axle is difficult to realize to the present performance degradation device of gearbox, and more urgent is, the influence of environmental corrosion to the gearbox life-span has been neglected to the present performance degradation device of gearbox, lacks the simulation of environmental corrosion, is difficult to satisfy the experimental research demand of gearbox accelerated life-span under adverse circumstances.
The utility model content is as follows:
the utility model aims to provide an accelerated life and environmental corrosion simulation test bed for an offshore wind power cluster gearbox, which can simulate an accelerated life degradation test of a plurality of gearboxes under a severe environment, can simulate the shaft bending change process according to the needs of users, and provides a reliable test basis for improving the intelligent operation and maintenance level of the offshore wind power cluster.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model relates to an accelerated life and environmental corrosion simulation test bed for an offshore wind power cluster gearbox, which is characterized by comprising a machine base, a worm gear driving assembly, a gearbox transmission mechanism and a shaft bending loading mechanism;
the worm and gear driving assembly comprises a motor, a motor base, a coupler, a worm, a left bearing, a right bearing, a left bearing seat, a right bearing seat, an upper worm gear and a lower worm gear; the motor is fixed on the base through the motor base, the motor is connected with the worm through the coupling, the worm is connected with the left bearing seat and the right bearing seat through the left bearing and the right bearing respectively, the left bearing seat and the right bearing seat are fixed on the base through bolts, and two upper worm wheels on the upper side of the worm and two lower worm wheels on the lower side of the worm form worm and gear transmission;
the gear box transmission mechanism comprises an upper gear box, an upper dynamic torque sensor, an upper magnetic powder brake, an upper backing plate, an upper base, a lower gear box, a lower dynamic torque sensor, a lower magnetic powder brake, a lower backing plate and a lower base; an input shaft of the upper gear box is connected with an upper worm wheel through a coupler, an output shaft of the upper gear box is connected with an upper dynamic torque sensor through a coupler, a three-way acceleration sensor is mounted on the upper gear box, the upper dynamic torque sensor is connected with an upper magnetic powder brake through a coupler, the upper gear box, the upper dynamic torque sensor and the upper magnetic powder brake are all fixed on an upper backing plate, and the upper backing plate is fixed on a base through an upper base; an input shaft of the lower gear box is connected with a lower worm wheel through a coupler, an output shaft of the lower gear box is connected with a lower dynamic torque sensor through a coupler, a three-way acceleration sensor is installed on the lower gear box, the lower dynamic torque sensor is connected with a lower magnetic powder brake through the coupler, the lower gear box, the lower dynamic torque sensor and the lower magnetic powder brake are all fixed on a lower backing plate, and the lower backing plate is fixed on a machine base through a lower base;
the shaft bending loading mechanism comprises a cylinder barrel side bearing, a cylinder barrel side rotating bearing seat, an air cylinder, a piston rod side bearing, a piston rod side rotating bearing seat and a machine base hook, wherein an inner ring of the cylinder barrel side bearing is fixed on an input shaft of a lower side gear box, an outer ring of the cylinder barrel side bearing is fixedly connected with the cylinder barrel side rotating bearing seat, a cylinder barrel of the air cylinder is connected with the cylinder barrel side rotating bearing seat, an input shaft of the other lower side gear box is connected with an inner ring of the piston rod side bearing, an outer ring of the piston rod side bearing is fixedly connected with the piston rod side rotating bearing seat with a hook, a piston rod of the air cylinder is provided with a round hole for hooking the hook on the piston rod side rotating bearing seat or the machine base hook, and the piston rod is hooked with the hook of the piston rod side rotating bearing seat or the machine base hook installed on the machine base;
furthermore, an environment simulation unit is also arranged on the test bed;
the environment simulation unit comprises an environment cover, a spray head and a temperature and humidity controller, the environment cover is reversely buckled above the two upper side gear boxes and the two lower side gear boxes, the lower side of the environment cover is connected with the base in a sealing mode, and the spray head and the temperature and humidity controller are fixedly installed on the environment cover.
Furthermore, a data acquisition control center is also arranged on the test bed;
data acquisition control center is respectively through signal line and motor, upside dynamic torque sensor, upside magnetic powder stopper, downside dynamic torque sensor, downside magnetic powder stopper, three-way acceleration sensor on the upside gear box, three-way acceleration sensor on the downside gear box, the cylinder, the atomising head, the atmospheric control ware is electric to be connected, gather upside dynamic torque sensor and downside dynamic torque sensor's torque signal, gather the three-way acceleration signal of upside gear box and downside gear box, control the motor rotational speed respectively, the output torque of upside magnetic powder stopper and downside magnetic powder stopper, the cylinder pulling force, the work of atomising head and atmospheric control ware.
Further, the middle parts of the upper surface of the upper side base plate and the upper surface of the lower side base are provided with sunken holes, the bottom surfaces of the upper side base and the base are provided with stepped grooves with rectangular long-strip-shaped sections, rectangular nuts are arranged in the stepped grooves, and the hexagonal socket head bolts are arranged in the sunken holes in a penetrating manner from top to bottom and penetrate through the stepped grooves and are in threaded connection with the rectangular nuts in the stepped grooves.
Furthermore, the coupler is a cylindrical sleeve, two threaded holes used for penetrating locking screws are formed in the cylindrical sleeve, and after the two shafts penetrate into the cylindrical sleeve, the two shafts penetrate through the threaded holes to be locked.
The utility model relates to a working method of an accelerated life and environmental corrosion simulation test bed of an offshore wind power cluster gearbox, which is characterized by comprising the following steps of: the motor drives the worm and drives the two upper worm wheels and the two lower worm wheels to rotate; the data acquisition control center controls the output torque of the upper magnetic powder brake and the lower magnetic powder brake in real time according to the input load torque change curve of each gear box; a circular hole of a piston rod of the air cylinder is connected with a hook of a piston rod side rotating bearing seat or a base hook arranged on a base, and a data acquisition control center radially stresses an input shaft of a lower side gear box and controls the tension of the air cylinder in real time; the data acquisition control center controls the environment in the environment cover through the spray head and the temperature and humidity controller according to the input salt spray test conditions, wherein the spray head is mainly responsible for spraying a spray solution, and the temperature and humidity controller is mainly responsible for regulating the temperature and the humidity in the environment cover; in an accelerated life test, signals acquired by a three-way acceleration sensor on an upper side gear box and a three-way acceleration sensor on a lower side gear box are transmitted to a data acquisition control center in real time for storage; and (4) continuing the accelerated life test until the test time set by the user is reached, and ending the accelerated life test.
The utility model relates to an installation method of an accelerated life and environmental corrosion simulation test bed of an offshore wind power cluster gearbox, which is characterized in that a motor base, a motor, a worm, a left bearing seat and a right bearing seat for supporting the worm are fixed on a machine base and are not moved, an upper side base plate is in relative detachable sliding connection with the upper side base, a lower side base is in relative detachable sliding connection with the machine base, namely, the middle parts of the upper surfaces of the upper side base plate and the lower side base are provided with a sunken hole channel, the bottom surfaces of the upper side base and the machine base are provided with a strip-shaped stepped groove with rectangular cross sections, a rectangular nut is arranged in the stepped groove, an inner hexagonal bolt penetrates through the sunken hole channel from top to bottom, and the inner hexagonal bolt penetrates through the stepped groove and is in threaded connection with the rectangular nut in the stepped groove;
when the gear box needs to be replaced, the upper side base plate and the upper side base can slide relatively when the hexagon socket head cap screw and the rectangular nut are unscrewed relatively, the lower side base and the machine base can slide relatively, and the hexagon socket head cap screw and the rectangular nut are locked relatively when the disassembly and assembly position is reached;
the coupler is a cylindrical sleeve, two threaded holes for penetrating locking screws are formed in the cylindrical sleeve, and after the two shafts are penetrated into the cylindrical sleeve, the two shafts are locked by penetrating the locking screws through the threaded holes; when the gear box needs to be replaced, the locking screws of the couplers on the input shaft and the output shaft of the gear box are unscrewed, the gear box is detached, a new gear box is replaced, and the gear box is locked by the locking screws.
Compared with the prior art, the utility model has the following advantages and prominent technical effects: 1. when the scheme of the utility model is used for testing, a worm gear transmission mode is adopted, so that accelerated life tests can be simultaneously carried out on a plurality of gear boxes (2-6 groups), the performance degradation conditions of the plurality of gear boxes in a wind power cluster are well simulated, and the acquisition of performance degradation data of the plurality of gear boxes is realized; 2. the test bed is provided with the shaft bending loading mechanism, radial force can be simultaneously applied to the input shafts of two or one gear box through the air cylinder according to the needs of a user, the pulling force of the air cylinder is adjusted in real time, other radial force which is not applied is compared, the influence of the applied radial force on the gear box is researched, and therefore the simulation of the gear box shaft bending change process is realized; 3. the test bed is provided with an environment simulation unit which comprises a spray head and a temperature and humidity controller which are connected with a data acquisition control center, can simulate salt spray environment conditions manually and can adjust the temperature and the humidity of the environment in real time; 4. the data acquisition control center of the test bench comprises functions of accelerated life test control, performance degradation data acquisition and environment simulation condition adjustment of the gear boxes, each gear box is provided with a magnetic powder brake, the rotating speed of a motor and the output torque of each magnetic powder brake can be adjusted in real time according to the test requirements of a user, the working condition adjustment of constant torque, periodic variation torque and random variation torque can be realized, and the working conditions of different units in a wind power plant can be better simulated.
Description of the drawings:
FIG. 1 is a schematic structural principle diagram of an embodiment of an accelerated life and environmental corrosion simulation test bed for an offshore wind power cluster gearbox provided by the utility model.
FIG. 2 is a schematic diagram of the structural principle of the environment simulation unit of the present invention;
FIG. 3 is a cross-sectional view of the coupling;
FIG. 4 is a cross-sectional view of the upper bolster and upper base;
FIG. 5 is a control schematic block diagram;
in the figure: 1-a machine base; 2-left bearing seat; 3-a left bearing; 4-a worm; 5-upper side base; 6-upper worm gear; 7-upper side backing plate; 8-upper side gearbox; 9-upper dynamic torque sensor; 10-upper side magnetic powder brake; 11-right bearing; 12-a right bearing seat; 13-a motor; 14-a coupling; 15-motor base; 16-lower worm gear; 17-piston rod side bearing; 18-lower side gearbox; 19-lower dynamic torque sensor; 20-lower magnetic powder brake; 21-lower side backing plate, 22-lower side base, 23-piston rod side rotary bearing seat; 24-engine base hook; 25-cylinder; 26-cylinder side rotating bearing seat; 27-cylinder side bearing; 28-environmental shield; 29-a spray head; 30-a temperature and humidity controller; 31-a counterbore; 32-hexagon socket head cap screw; 33-rectangular nuts; 34-threaded hole.
The specific implementation mode is as follows:
the structure, principle and operation of the present invention will be further explained with reference to the accompanying drawings
As shown in fig. 1 and 2, the test bed for simulating the accelerated life and the environmental corrosion of the offshore wind power cluster gearbox provided by the utility model comprises a machine base 1, a worm and gear drive assembly, a gearbox transmission mechanism, a shaft bending loading mechanism, an environmental simulation unit and a data acquisition control center; the worm and gear driving assembly comprises a motor 13, a motor base 15, a coupler 14, a worm 4, a left bearing 3, a right bearing 11, a left bearing seat 2, a right bearing seat 12, an upper worm gear 6 and a lower worm gear 16; the motor 13 is fixed on the base 1 through a motor base 15, the motor 13 is connected with the worm 4 through a coupling 14, the worm 4 is connected with the left bearing seat 2 and the right bearing seat 12 through a left bearing 3 and a right bearing 11 respectively, the left bearing seat 2 and the right bearing seat 12 are fixed on the base 1 through bolts, and two upper side worm gears 6 on the upper side of the worm 4 and two lower side worm gears 16 on the lower side form worm gear transmission; the gear box transmission mechanism comprises an upper gear box 8, an upper dynamic torque sensor 9, an upper magnetic powder brake 10, an upper backing plate 7, an upper base 5, a lower gear box 18, a lower dynamic torque sensor 19, a lower magnetic powder brake 20, a lower backing plate 21 and a lower base 22; the input shaft of the upper gear box 8 is connected with the upper worm wheel 6 through a coupler, the output shaft of the upper gear box 8 is connected with the upper dynamic torque sensor 9 through a coupler, a three-dimensional acceleration sensor (the parts are small, not shown in the figure, the advantage of the three-axis acceleration sensor is that only a three-dimensional acceleration sensor is used for detecting acceleration signals under the situation that the moving direction of an object is not known in advance, the three-dimensional acceleration sensor has the characteristics of small volume and light weight, can measure space acceleration and can comprehensively and accurately reflect the moving property of the object), the upper dynamic torque sensor 9 is connected with the upper magnetic powder brake 10 through a coupler, the upper gear box 8, the upper dynamic torque sensor 9 and the upper magnetic powder brake 10 are both fixed on the upper backing plate 7, and the upper backing plate 7 is fixed on the machine base 1 through the upper base 5; an input shaft of the lower gear box 18 is connected with the lower worm wheel 16 through a coupler, an output shaft of the lower gear box 18 is connected with a lower dynamic torque sensor 19 through a coupler, a three-way acceleration sensor is mounted on the lower gear box 18, the lower dynamic torque sensor 19 is connected with a lower magnetic powder brake 20 through a coupler, the lower gear box 18, the lower dynamic torque sensor 19 and the lower magnetic powder brake 20 are all fixed on a lower backing plate 21, and the lower backing plate 21 is fixed on the machine base 1 through a lower base 22; the shaft bending loading mechanism comprises a cylinder barrel side bearing 27, a cylinder barrel side rotating bearing seat 26, an air cylinder 25, a piston rod side bearing 17, a piston rod side rotating bearing seat 23 and a machine base hook 24, wherein the inner ring of the cylinder barrel side bearing 27 is fixed on the input shaft of one lower side gear box, the outer ring of the cylinder barrel side bearing 27 is fixedly connected with the cylinder barrel side rotating bearing seat 26, the cylinder barrel of the air cylinder 25 is connected with the cylinder barrel side rotating bearing seat 26, the input shaft of the other lower side gear box 18 is connected with the inner ring of the piston rod side bearing 17, the outer ring of the piston rod side bearing 17 is fixedly connected with the piston rod side rotating bearing seat 23 with the hook, the piston rod of the air cylinder 25 is provided with a round hole, and the piston rod can be connected with the hook of the piston rod side rotating bearing seat 23 or the machine base hook 24 arranged on the machine base 1 according to requirements; the environment simulation unit comprises an environment cover 28, a spray head 29 and a temperature and humidity controller 30, wherein the environment cover 28 is reversely buckled above the two upper side gear boxes 8 and the two lower side gear boxes 18, the lower part of the environment cover 28 is hermetically connected with the machine base 1, and the spray head 29 and the temperature and humidity controller 30 are fixedly installed on the environment cover 28.
Data acquisition control center respectively through signal line and motor 13, upside dynamic torque sensor 9, upside magnetic powder stopper 10, downside dynamic torque sensor 19, downside magnetic powder stopper 20, three-way acceleration sensor on the upside gear box 8, three-way acceleration sensor on the downside gear box 18, cylinder 25, atomising head 29, temperature and humidity controller 30 electricity is connected, gather upside dynamic torque sensor 9 and downside dynamic torque sensor 19's torque signal, gather the three-way acceleration signal of upside gear box 8 and downside gear box 18, respectively control motor 13 rotational speed, the output torque of upside magnetic powder stopper 10 and downside magnetic powder stopper 20, cylinder 25 pulling force, the work of atomising head 29 and temperature and humidity controller 30.
The dynamic torque sensor, the magnetic powder brake and the three-way acceleration sensor are all the existing commercially available components, and the description is not repeated here.
The principle and the working process of the utility model are as follows:
the motor 13 drives the worm 4 according to the test requirement of a user so as to drive the two upper worm wheels 6 and the two lower worm wheels 16 to rotate; the data acquisition control center controls the output torque of the upper magnetic powder brake 10 and the lower magnetic powder brake 20 in real time according to the load torque change curve of each gearbox input by a user; according to the setting of a user, a circular hole of a piston rod of the air cylinder 25 is connected with a hook of a piston rod side rotating bearing seat 23 or a base hook 24 arranged on the base 1, and the data acquisition control center controls the pulling force of the air cylinder 25 in real time according to the radial stress of an input shaft of the lower side gear box 18 input by the user; the data acquisition control center controls the environment in the environment cover 28 through the spray head 29 and the temperature and humidity controller 30 according to the salt spray test conditions input by the user, wherein the spray head 29 is mainly responsible for spraying a spray solution, and the temperature and humidity controller 30 is mainly responsible for adjusting the temperature and the humidity in the environment cover 28; in the accelerated life test, signals acquired by a three-way acceleration sensor on the upper side gear box 8 and a three-way acceleration sensor on the lower side gear box 18 are transmitted to a data acquisition control center in real time for storage; and (4) continuing the accelerated life test until the test time set by the user is reached, and ending the accelerated life test.
The installation method of the marine wind power cluster gearbox accelerated life and environmental corrosion simulation test bed comprises a motor base 15, a motor 13, a worm 4, a left bearing seat 2 and a right bearing seat 12 which are used for supporting the worm and fixed on a machine base 1, an upper side base plate 7 and an upper side base 5 are in relative detachable sliding connection, a lower side base 22 and the machine base 1 are in relative detachable sliding connection, namely, the middle parts of the upper surfaces of the upper side base plate 7 and the lower side base 22 are provided with a sunk hole channel 31, the bottom surfaces of the upper side base 5 and the machine base 1 are provided with stepped grooves with rectangular strip-shaped sections, rectangular nuts 33 are arranged in the stepped grooves, inner hexagonal bolts 32 penetrate through the sunk hole channel from top to bottom, and penetrate through the stepped grooves and are in threaded with the rectangular nuts in the stepped grooves;
when the gear box needs to be replaced, the upper side base plate and the upper side base can slide relatively when the hexagon socket head cap screw and the rectangular nut are unscrewed relatively, the lower side base and the machine base can slide relatively, and the hexagon socket head cap screw and the rectangular nut are locked relatively when the disassembly and assembly position is reached;
the coupler is a cylindrical sleeve, two threaded holes 34 for penetrating locking screws are formed in the cylindrical sleeve, and after the two shafts penetrate into the cylindrical sleeve, the two shafts penetrate through the threaded holes through the locking screws to be locked; when the gear box needs to be replaced, the locking screws of the couplers on the input shaft and the output shaft of the gear box are unscrewed, the gear box is detached, a new gear box is replaced, and the gear box is locked by the locking screws.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121391686.3U CN215486389U (en) | 2021-06-22 | 2021-06-22 | Accelerated Life and Environmental Corrosion Simulation Test Bed of Offshore Wind Power Cluster Gearbox |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121391686.3U CN215486389U (en) | 2021-06-22 | 2021-06-22 | Accelerated Life and Environmental Corrosion Simulation Test Bed of Offshore Wind Power Cluster Gearbox |
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| CN215486389U true CN215486389U (en) | 2022-01-11 |
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| CN202121391686.3U Active CN215486389U (en) | 2021-06-22 | 2021-06-22 | Accelerated Life and Environmental Corrosion Simulation Test Bed of Offshore Wind Power Cluster Gearbox |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7436736B1 (en) | 2023-06-07 | 2024-02-22 | 哈尓濱船舶鍋炉渦輪机研究所（中国船舶集団有限公司第七〇三研究所） | High output heavy load planetary gear back-to-back test stand |
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2021
- 2021-06-22 CN CN202121391686.3U patent/CN215486389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7436736B1 (en) | 2023-06-07 | 2024-02-22 | 哈尓濱船舶鍋炉渦輪机研究所（中国船舶集団有限公司第七〇三研究所） | High output heavy load planetary gear back-to-back test stand |
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