CN108954146B - Passive lifting system and method for waterscape lamp - Google Patents

Passive lifting system and method for waterscape lamp Download PDF

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Publication number
CN108954146B
CN108954146B CN201810532767.7A CN201810532767A CN108954146B CN 108954146 B CN108954146 B CN 108954146B CN 201810532767 A CN201810532767 A CN 201810532767A CN 108954146 B CN108954146 B CN 108954146B
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China
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lamp
lamp post
buoy
bearing bush
bearing
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CN108954146A (en
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戴峥晖
王圣健
范涛
吴明光
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Zhejiang University ZJU
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Zhejiang University ZJU
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • F21S8/08Lighting devices intended for fixed installation with a standard
    • F21S8/085Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/088Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device mounted on top of the standard, e.g. for pedestrian zones
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/36Hoisting or lowering devices, e.g. for maintenance

Abstract

The invention discloses a passive lifting system and a passive lifting method for a waterscape lamp. The passive lifting system drives the lamp to lift by utilizing buoyancy and gravity, so that the illumination distance is maintained in a reasonable interval, the illumination effect is good, and the TCO of the system is reduced; discontinuous lamp height control is realized, and the lamp is practical and effective; the sensitivity of height control is set by means of the friction force of the bearing bush-lamp post sliding pair, and the bearing bush is made of graphite fiber reinforced polytetrafluoroethylene, so that the lamp is simple and reliable; the guide ball assembly is arranged in the lifting direction of the lamp post, so that the lifting verticality of the lamp post is ensured; the periodically opened electromagnet lamp post clamping device improves the reliability of the system; the floating cylinder is internally provided with the balancing weight and externally provided with the centering round wheel, so that the lamp moment is balanced, the lamp post does not bear the moment, and the availability of the system is improved; the float bowl pit is provided with an electric brake, so that the maintainability of the system is improved.

Description

Passive lifting system and method for waterscape lamp
Technical Field
The invention belongs to the technical field of lamp panel lifting of high-pole lamps, and particularly relates to a passive lifting waterscape lamp system and method driven by buoyancy and gravity for river/lake surface waterscape illumination occasions with large water level drops.
Background
Water has innate affinity for human living natural environment, and is inconceivable away from the harmonious relationship between water and human regardless of human living environment, natural environment or landscape environment. On the other hand, the illumination can change the appearances of human habitation, nature and landscape environments, brighten the spatial attributes of the environments and improve the quality of the environments; the water-wading, water-playing and water-watching experience of people is closely related to the quality of lighting. In recent years, people in Hangzhou state have more and more widely pursued to play and leisure at night: the west lake of Xiri walks around the lake, and the Qiantangjiang of today walks along the river; the west stream wetland park can relieve pressure, leave a false for the mind of the park, and stand up the canal landscape gallery, so that the park can meet the conscientious meeting of the ancient people when passing through the space. The water scene and wind light band on the river/lake surface is the favorite for citizens to have a rest, entertainment and tour and sightseeing. The scenery is so beautiful that people always feel that little is left in the aspect of lighting: paying attention to the surplus landscape and considering the shortages of tourists; the lighting lamp with the fixed installation height is used for waterscape occasions with large water level difference, the lighting effect and the experience of tourists are poor, and urgent improvement is needed. The improvement is a system engineering, and relates to hydrologic data, analysis of a demand side, constraint of a supply side and scheme selection. Taking the water level data of the hang state section of the Jinghang canal as an example, the water level statistics of the canal in the past year are shown in Table 1.
TABLE 11980 addition of 2009 average daily water level mean and maximum/minimum values of the Zhou section of the Jing Hangzhou canal
Year of year 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
Mean value of 1.36 1.29 1.18 1.53 1.45 1.39 1.23 1.19 1.24 1.49
Maximum value 2.38 2.60 1.90 3.39 3.42 2.14 2.14 2.29 2.37 2.88
Minimum value 0.64 0.46 0.67 0.77 1.04 0.93 0.72 0.77 0.75 0.83
Year of year 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
Mean value of 1.40 1.54 1.24 1.58 1.25 1.32 1.34 1.17 1.52 1.65
Maximum value 2.40 2.84 2.34 3.11 2.71 3.16 3.51 3.07 2.35 3.85
Minimum value 0.65 0.88 0.70 0.93 0.70 0.89 0.73 0.68 1.05 0.88
Year of year 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
Mean value of 1.24 1.36 1.47 1.29 1.19 1.34 1.31 1.41 1.57 1.49
Maximum value 2.21 3.40 2.10 2.19 2.15 2.24 2.19 3.14 3.29 2.43
Minimum value 0.75 0.97 1.02 0.82 0.93 0.89 1.04 0.97 1.20 1.10
The water level of the Hangzhou canal water system at the Xixi wetland is about 1.3m, and the landscape design water level of the wetland is 1.6 m; in the flood period, the peripheral river channels and the internal river channels of the wetland share the flood-carrying task, and the water level difference is more than or equal to 2 m.
Until now, there is no customized national standard for waterscape lighting. Mostly refer to urban road lighting design standard (CJJ45-2006), lamp installation height in urban road lighting engineering construction and acceptance specification (CJJ 89-2012): the lamp is 5-6 m small, 6.5-7.5 m long-arm lamps and ceiling lamps of common streets, more than or equal to 8m of arc lamps of fast lanes and more than or equal to 6.5m of arc lamps of slow lanes; meanwhile, the lighting standard of local urban landscape is referred to, such as Beijing standard: urban landscape lighting specifications (DB 11T-388.8-2015); and (3) making enterprise standards, such as enterprise standards of the green city real estate group, ltd: landscape lighting design review rules (GTS 65006-2012). It must be pointed out that the precision of the lighting distance of the waterscape lamp is a semi-quantitative semi-definite index, and the convention is to use decimeter (dm) level precision. From the perspective of a demand side, namely citizens, as long as the brightness is moderate and the uniformity is better, the method is relatively wide and has subjective indexes; therefore, the lighting distance index should be set as an interval index, and the lamp height adjustment is also discontinuous and intermittent interval adjustment; for example, the initial height of the lamp installation is 4m, the height adjustment sensitivity is 0.2m, and if and only if the lighting distance of the lamp is less than or equal to 3.8m or greater than or equal to 4.2m, the height adjustment process is started to reset the lighting distance to about 4 m.
The solution on the supply side is straightforward. Since the lighting distance of the lamp deviates from the design value and the lighting effect is poor due to the water level change of the waterscape; moreover, the water level can not be adjusted, and a logical solution is not difficult to obtain: the lamp height varies with the water level. The technical scheme is used for transplanting a high-pole lamp electromechanical system or a stage lighting technology with the highest technical similarity, and the technology is mature and feasible. The technology is used for changing the height of the waterscape lamp more than enough. But the feasibility of the scheme is questionable from the evaluation of technical and economic dimensions; the cost is too high, and the operation and maintenance amount is large. Literature [ shijia, design and study of automatic lifting lamp device [ J ] light engineering report, 2015.26 (3): 102-105, by taking the electromechanical system of the high-pole lamp as a reference, a lifting device adopting an ultrasonic liquid level sensor, a motor and a lead screw/nut transmission pair is provided. The Hangzhou scenic region abandons a 'ticket economy' mode which is subject to the following problems of the national people, and adheres to the public welfare of the park. The political pressure is too great for cloning high-pole lamp electromechanical systems; the waterscape is wide in illumination amount, even the waterscape is difficult to be attached to the shore of a river, a beach and an island, and the operation and maintenance workload is too large. The more representative research results in the aspect of waterscape lamps are summarized as follows:
invention patent "DMX 512 landscape lighting management and control system and method supporting logical group address" (zl200910098263.x), and proposes a DMX512 landscape lighting management and control system and method supporting logical group address.
The invention relates to a landscape lighting color evaluation method and system (ZL201410241106.0), and provides a landscape lighting color evaluation method and system.
Invention patent "diverter of landscape lighting fixture" (application No. 201710861320.X), proposing a diverter of landscape lighting fixture, implementing voice operation by means of voice recognizer.
The beneficial exploration is an overview of research results in the aspect of waterscape lamps; however, in the river/lake surface waterscape illumination occasions with large water level drop, a passive lifting waterscape lamp system driven by buoyancy and gravity is not sufficient so far; therefore, it is necessary to make further innovative design based on the existing results.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a passive lifting system and a passive lifting method for a waterscape lamp, and the specific technical scheme is as follows:
a passive lifting system of a waterscape lamp is characterized in that the system consists of a water diversion unit, a buoy unit, a lamp holder unit, a lamp pole unit, an electromagnet lamp pole clamping device and a lamp; the water diversion unit comprises a water diversion pipe, a filter screen, an electric brake and a buoy pit, the buoy unit comprises a buoy, three centering circular wheels and a balance weight, the lamp holder unit comprises a lamp holder, a lamp post and a lamp post cover, and the lamp post unit comprises a lamp post, four first bearing bushes with buoyancy sensitivity, four second bearing bushes with buoyancy sensitivity, four first guide balls and four second guide balls; when the electromagnet lamp post clamping device is powered off, the clamping mechanism fixes the lamp post under the action of spring force, when the electromagnet lamp post clamping device is powered on, the electromagnetic force overcomes the spring force, and the clamping mechanism is separated from the lamp post; the surface of the lamp post made of aluminum is hardened, and the lamp is in torque balance and has no torque acting on the lamp post;
the design position of the water intake of the water conduit is between the bottom of the river bed and the low water level, the water outlet is at the bottom of the sidewall of the float bowl pit, the water intake is equipped with the filter screen, the water outlet is equipped with the electric brake, when the system maintains and cleans the float bowl pit, the filter screen is collected, the electric brake is closed, the high pressure water is added into the float bowl pit, the electric brake is opened, and the float bowl pit is cleaned; the buoy is concentric with the buoy pit through three centering round wheels, the three centering round wheels are three centering round wheels separated by a certain distance, the wheel rod fixed end of each centering round wheel is hinged to the buoy, and the compression spring pushes and presses the wheel rod to enable the round wheels to be in close contact with the wall of the buoy pit; a balance weight for adjusting the buoyancy of the buoy is arranged in the buoy, and the buoyancy of the buoy with the built-in balance weight is multiplied by 80% and is approximately equal to the weight of a lamp post, the weight of a lamp, the friction force of four first bearing bushes and the friction force of four second bearing bushes; the lamp post is rigidly connected with the buoy, the buoy has three different heights corresponding to the dry/normal/flood level of the river, the lamp post also has three different heights corresponding to one, the lamp post rises and falls along with the buoy, the buoy rises and falls along with the water level, and the illumination distance of the lamp is controlled to be maintained in a reasonable interval.
Preferably, the lamp holder is arranged on a river bank, the lamp post is arranged on the lamp holder, the top end of the lamp post is provided with a lamp post cover, and the lamp post cover is provided with an electromagnet lamp post clamping device; the lamp post is inserted into the lamp post, the lamp post and the lamp post are concentric, the lamp post performs lifting motion along the vertical direction of the lamp post, and a circular hole required by the lifting motion of the lamp post is reserved in the center of the lamp post cover; the bottom and the top of the lamp post are respectively provided with four first bearing bush mounting holes and four second bearing bush mounting holes, the four first bearing bush mounting holes are distributed at intervals of 90 degrees, and the four second bearing bush mounting holes are also distributed at intervals of 90 degrees; and four first guide ball mounting holes and four second guide ball holes are arranged between the four first bearing bush mounting holes and the four second bearing bush mounting holes at equal intervals, and the hole opening mode is the same as that of the four first bearing bush mounting holes.
Preferably, the four first bearing bushes each include a 1 st bearing bush module, a 2 nd bearing bush module, a 3 rd bearing bush module and a 4 th bearing bush module, and the 4 bearing bush modules are distributed at 90 degrees intervals and respectively installed in the four first bearing bush installation holes;
1, bearing bush rectangular holes and bearing bush circular holes for tapping internal threads are distributed in bearing bush holes of a bearing bush module along the radial direction of a lamp post; the 1 st cuboid sliding block is connected with the 2 nd cuboid sliding block through a spring and is arranged in the bearing rectangular hole, and the end surface of the 1 st cuboid sliding block, which is contacted with the lamp post, is processed into a lamp post curvature cambered surface; a fastening screw at the slotted long cylindrical end is screwed into a circular hole of the bearing bush for tapping the internal thread, and the end surface of the long cylindrical end of the fastening screw is connected with the end surface of the 2 nd cuboid slider; the material of the 1 st cuboid slide block is graphite fiber reinforced polytetrafluoroethylene; screwing a slotted long column end holding screw, wherein the end surface of the long column end of the holding screw pushes and presses the 2 nd cuboid slider, the spring, the 1 st cuboid slider and the lamp post, the pressure of the 1 st bearing bush module on the lamp post is increased, the friction force of the lamp post in the vertical direction of the lamp post during lifting motion is increased, and vice versa;
the composition structure and the principle of the 2 nd bearing bush module, the 3 rd bearing bush module and the 4 th bearing bush module are the same as those of the 1 st bearing bush module, and the four second bearing bushes are also the same as those of the four first bearing bushes.
Preferably, the four first guide balls each include a 1 st guide ball module, a 2 nd guide ball module, a 3 rd guide ball module and a 4 th guide ball module, and the 4 guide ball modules are distributed at 90 degrees and respectively installed in the four first guide ball installation holes;
1, a guide ball rectangular hole and a guide ball circular hole for tapping an internal thread are distributed in a guide ball hole of the guide ball module along the radial direction of a lamp post; the cuboid sliding block is provided with a structural hole by taking the reference of the outer ring of the ball bearing, ball balls are embedded in the structural hole, and the rectangular hole is filled with a guide ball; a set screw at the slotted long cylindrical end is screwed into a round hole of the guide ball for tapping the internal thread, and the end surface of the long cylindrical end of the set screw is connected with the end surface of the cuboid slider; the material of the cuboid slider is graphite fiber reinforced polytetrafluoroethylene; screwing a slotted long cylindrical end holding screw, wherein the end face of the long cylindrical end of the holding screw pushes and presses the cuboid sliding block and the ball bearing, the distance between the No. 1 guide ball module and the lamp post is shortened to zero, and vice versa;
the composition structure and the principle of the 2 nd guide ball module, the 3 rd guide ball module and the 4 th guide ball module are the same as those of the 1 st guide ball module, and the four second guide balls are also the same as those of the first guide balls.
A waterscape lamp passive lifting method using the waterscape lamp passive lifting system is characterized in that the flow of the method comprises a preparation flow of the waterscape lamp passive lifting method and an operation flow of the waterscape lamp passive lifting method;
preparation process of waterscape lamp passive lifting method
Operation parameters of passive lifting system of waterscape lamp are set
Buoyancy sensitivity, illumination distance/water level change interval corresponding buoy buoyancy
The friction force of the first bearing bush and the friction force of the second bearing bush are approximately equal to
Working period T ═ T of electromagnet lamp pole clamping devicePower loss+TGet electricity,TPower loss》TGet electricity
Vertical adjustment passive lifting system for waterscape lamp
Increase or decrease the counterweight in the float bowl to increase or decrease the buoyancy of the float bowl
Three centering round wheels are adjusted and calibrated to ensure that the buoy and the buoy pit are concentric
Lamp moment balance without moment acting on lamp pole
The four first guide balls and the four second guide balls tighten the set screws, the ball balls are in contact with the lamp post, the set screws are loosened by 0.5-1 circle, and the lamp enters a guide state
The tightness degree of 8 slotted long cylindrical end fastening screws is adjusted by four first bearing bushes and four second bearing bushes, and the static friction force of the bearing bushes is approximately equal to the buoyancy force of the buoy in the water level change interval
Operation process of passive lifting method of waterscape lamp
Work cycle of clamping device for magnet lamp post
if(t∈TPower loss)
The electromagnet lamp post clamping device is powered off and turned on
else
Electricity of electromagnet lamp pole clamping device
The clamping mechanism is separated from the lamp post
Secondly, height control of the lamp
Case 1: buoyancy of float bowl, lamp pole/weight, four first/second bearing bushes and friction force not less than 0
The buoy, the lamp post and the lamp are lifted and turned to the third position
Case 2: the friction force of the lamp post/the lamp post with weight, buoyancy of the buoy and four first/second bearing bushes is more than or equal to 0
Lowering the buoy, the lamp post and the lamp, and turning the lamp to the third position
Case 3: others
Buoy, lamp post and lamp maintaining original state
Circulation of three-step passive lifting
Turning.
Compared with the background technology, the invention has the following beneficial effects: the passive lifting system of the waterscape lamp utilizes buoyancy and gravity to drive the lamp to lift, so that the illumination distance is maintained in a reasonable interval, the illumination effect is good, and the TCO of the system is reduced; discontinuous lamp height control is realized, and the lamp is practical and effective; the sensitivity of height control is set by means of the friction force of the bearing bush-lamp post sliding pair, and the bearing bush is made of graphite fiber reinforced polytetrafluoroethylene, so that the lamp is simple and reliable; the guide ball assembly is arranged in the lifting direction of the lamp post, so that the lifting verticality of the lamp post is ensured; the periodically opened electromagnet lamp post clamping device improves the reliability of the system; the floating cylinder is internally provided with the balancing weight and externally provided with the centering round wheel, so that the lamp moment is balanced, the lamp post does not bear the moment, and the usability of the system is improved; the floating barrel pit is provided with an electric valve, so that the maintainability of the system is improved.
Drawings
FIG. 1 is a schematic block diagram of a passive lifting system for waterscape fixtures according to the present invention;
FIG. 2 is a schematic diagram of the passive lifting system of the waterscape lamp of the present invention;
FIG. 3 is a top view of a pontoon pit;
fig. 4 is a sectional view of the lamp socket unit;
figure 5 is a top view and a cross-sectional view of a first bearing shell;
FIG. 6 is a top and cross-sectional view of the first guide ball;
FIG. 7 is a flow chart of a waterscape lamp passive lifting method;
the lamp comprises a 100-diversion unit, a 200-buoy unit, a 300-lamp holder unit, a 400-lamp holder unit, a 500-electromagnet lamp holder clamping device, a 600-lamp, a 110-diversion pipe, a 120-filter screen, a 130-electric brake, a 140-buoy pit, a 210-buoy, a 220-centering circular wheel, a 230-counterweight, a 310-lamp holder, a 320-lamp post, a 322-first bearing bush hole mounting hole, a 323-second bearing bush mounting hole, a 324-first guide ball mounting hole, a 325-second guide ball mounting hole, a 330-lamp post cover, a 410-lamp post, a 420-first bearing bush, a 421-1 bearing bush module, a 4211-1 st cuboid sliding block, a 4212-spring, a 4213-cuboid sliding block, a 4214-slotted long cylindrical end fastening screw, 422-2 bearing bush module, 423-3 bearing bush module, 424-4 bearing bush module, 430-second bearing bush, 440-first guide ball, 441-1 guide ball module, 4411-ball, 4412-guide ball cuboid slider, 4413-guide ball slotted long cylindrical end set screw, 442-2 guide ball module, 443-3 guide ball module, 444-4 guide ball module and 450-second guide ball.
Detailed Description
As shown in fig. 1-3, the passive lifting system of the waterscape lamp consists of a water diversion unit 100, a buoy unit 200, a lamp holder unit 300, a lamp pole unit 400, an electromagnet lamp pole clamping device 500 and a lamp 600; the water diversion unit 100 comprises a water diversion pipe 110, a filter screen 120, an electric brake 130 and a buoy pit 140, the buoy unit 200 comprises a buoy 210, a centering circular wheel x 3220 and a counterweight 230, the lamp holder unit 300 comprises a lamp holder 310, a lamp post 320 and a lamp post cover 330, and the lamp post unit 400 comprises a lamp post 410, four first bearing shoes 420 with buoyancy sensitivity, four second bearing shoes 430 with buoyancy sensitivity, four first guide balls 440 and four second guide balls 450; when the electromagnet lamp pole clamping device 500 is powered off, the clamping mechanism fixes the lamp pole under the action of spring force, when the power is on, the electromagnetic force overcomes the spring force, and the clamping mechanism is separated from the lamp pole; the surface of the lamp post 410 made of aluminum is hardened, the lamp 600 is in moment balance, and no moment acts on the lamp post 410;
the water intake of the water conduit 110 is designed between the bottom of the river bed and the low water level, the water outlet is arranged at the bottom of the side wall of the float bowl pit 140, the water intake is provided with a filter screen 120, the water outlet is provided with an electric brake 130, when the float bowl pit 140 is maintained and cleaned by the system, the filter screen 120 is closed, the electric brake 130 is closed, high-pressure water is added into the float bowl pit 140, the electric brake 130 is opened, and the float bowl pit 140 is cleaned; the buoy 210 is concentric with the buoy pit 140 through three centering round wheels 220, the three centering round wheels 220 are separated by 120 degrees, the wheel rod fixing ends of the centering round wheels are hinged to the buoy 210, and the compression spring pushes and presses the wheel rods to enable the round wheels to be in close contact with the wall of the buoy pit 140; the buoy 210 is internally provided with a counterweight 230 for adjusting the buoyancy of the buoy, and the buoyancy of the buoy with the built-in counterweight is multiplied by 80% and approximately equals to the weight of a lamp post, the weight of a lamp, the friction force of four first bearing bushes and the friction force of four second bearing bushes; the lamp pole 410 is rigidly connected with the buoy 210, corresponding to the dry/normal/flood level of the river, the buoy 210 has 3 different heights, the lamp pole 410 also has 3 different heights in one-to-one correspondence, the lamp pole rises and falls along with the buoy, the buoy rises and falls along with the water level, and the illumination distance of the lamp is controlled to be maintained in a reasonable interval.
Description 1: without loss of generality, the discussion herein is only in terms of the interference of river levels with illumination distances, with lake and river levels being similar to river levels. The buoyancy of the buoy with the built-in balance weight is reduced and increased by increasing and decreasing the balance weight, so that the usability of the passive lifting system of the waterscape lamp is improved.
As shown in fig. 4, the lamp holder 310 is arranged on the river bank, the lamp post 320 is installed on the lamp holder 310, the lamp post cover 330 is arranged at the top end of the lamp post 320, and the electromagnet lamp post clamping device 500 is arranged on the lamp post cover 330; the lamp pole 410 is inserted into the lamp post 320, the lamp pole 410 and the lamp post are concentric, the lamp pole 410 does lifting motion along the vertical direction of the lamp post, and a round hole required by the lifting motion of the lamp pole is reserved in the center of the lamp post cover 330; the bottom and the top of the lamp post 320 are respectively provided with four first bearing bush hole mounting holes 322 and four second bearing bush mounting holes 323, the four first bearing bush mounting holes 322 are distributed at intervals of 90 degrees, and the four second bearing bush mounting holes 323 are distributed the same as the four first bearing bush mounting holes 322; four first guide ball mounting holes 324 and four second guide ball mounting holes 325 are equidistantly arranged between the four first bearing bush mounting holes 322 and the four second bearing bush mounting holes 323, and the hole opening mode is the same as that of the first bearing bush holes 322.
As shown in fig. 5, each of the four first bearing shells 420 includes a 1 st bearing shell module 421, a 2 nd bearing shell module 422, a 3 rd bearing shell module 423, and a 4 th bearing shell module 424, and the 4 bearing shell modules are distributed at 90 degrees and respectively installed in the four first bearing shell installation holes 322;
a bearing hole of the first bearing module 421 is distributed with a bearing rectangular hole and a bearing circular hole for tapping an internal thread along the radial direction of the lamp post 410; the 1 st cuboid slider 4211 is connected with the 2 nd cuboid slider 4213 through a spring 4212 and is arranged in a bearing rectangular hole, and the end surface of the 1 st cuboid slider 4211 contacted with the lamp post 410 is processed into a lamp post curvature arc surface; a slotted long cylindrical end set screw 4214 is screwed into a circular hole of the bearing bush for tapping the internal thread, and the end surface of the long cylindrical end of the set screw is connected with the end surface of the 2 nd cuboid slider; the material of the 1 st cuboid slide block is graphite fiber reinforced polytetrafluoroethylene; screwing a slotted long cylindrical end set screw 4214, wherein the end surface of the long cylindrical end of the set screw pushes a 2 nd cuboid slider 4213, a spring 4212, a 1 st cuboid slider 4211 and the lamp post 410, the pressure of the 1 st bearing bush module 421 on the lamp post 410 is increased, the friction force of the lamp post 410 during the lifting motion along the vertical direction of the lamp post is increased, and vice versa;
the composition and principle of the 2 nd, 3 rd and 4 th bearing modules 422, 423 and 424 are the same as those of the 1 st bearing module 421, and the four second bearing shoes 430 are also the same as those of the four first bearing shoes 420.
Description 3: in view of the simplicity of the expression, the mounting method of the 1 st to 4 th bearing shell modules of the four first bearing shells is not described; the common structure comprises an upper annular pressing plate, a lower annular pressing plate, a bolt structure and the like. The four second bearing shoes, the four first guide balls and the four second guide balls are installed as above. The height of the lamp is adjusted in discontinuous and intermittent intervals, the size of the intervals depends on the buoyancy sensitivity, and the buoyancy sensitivity is equal to the friction force between the four first bearing bushes and the lamp post and the friction force between the four second bearing bushes and the lamp post.
As shown in fig. 6, the four first guide balls 440 each include a 1 st guide ball module 441, a 2 nd guide ball module 442, a 3 rd guide ball module 443, and a 4 th guide ball module 444, the 4 guide ball modules being distributed at 90 degrees and respectively fitted into holes of the four first guide balls 324;
a guide ball rectangular hole and a guide ball circular hole for tapping an internal thread are distributed in the guide ball hole of the 1 st guide ball module 441 along the radial direction of the lamp post 410; the guide ball cuboid slide block 4412 is embedded with ball bearings 4411 by taking the reference of structural openings of the outer ring of the ball bearing, and is arranged in a guide ball rectangular hole; a fastening screw 4413 at the long cylindrical end of the guide ball slotting is screwed into the circular hole of the guide ball tapping the internal thread, and the end surface of the long cylindrical end of the fastening screw is connected with the end surface of the cuboid slider; the material of the cuboid slider is graphite fiber reinforced polytetrafluoroethylene; screwing the slotted long cylindrical end set screw 4413, wherein the end surface of the long cylindrical end of the set screw pushes the cuboid slider 4412 and the ball bearing 4411, and the distance between the No. 1 guide ball module 441 and the lamp post 410 is shortened to zero, and vice versa;
the composition and principle of the 2 nd, 3 rd and 4 th guide ball modules 442, 443 and 444 are the same as those of the 1 st guide ball module 421, and the four second guide balls 450 are also the same as those of the four first guide balls 440.
Description 4: the four first guide balls and the four second guide balls have the function of ensuring that the lamp pole does lifting motion along the vertical direction of the lamp post. Therefore, when the four first/second guide balls are installed, the slotted long cylindrical end fastening screw is screwed until the ball balls are tightly contacted with the lamp post; and then, loosening the fastening screw at the end of the slotted long column by 0.5-1 circle to enable the ball and the lamp post to be in a contact non-contact critical state, namely a guiding state.
As shown in fig. 7(a), (b), and (c), the flow of the passive lifting method of the waterscape lamp includes a preparation flow of the passive lifting method of the waterscape lamp, and an operation flow of the passive lifting method of the waterscape lamp;
preparation process of waterscape lamp passive lifting method
(1) Setting the operation parameters of the passive lifting system of the waterscape lamp;
the buoyancy sensitivity, the buoyancy of the buoy corresponding to the illumination distance/water level change interval is approximately equal to the friction force of the four first bearing bushes and the friction force of the four second bearing bushes;
working period T ═ T of electromagnet lamp pole clamping devicePower loss+TGet electricity,TPower loss》TGet electricity
(2) Adjusting a passive lifting system of the waterscape lamp;
the balance weight arranged in the buoy 210 is increased or decreased, so that the buoyancy of the buoy is increased or decreased;
three adjusting centering round wheels 220, wherein the buoy 210 is concentric with the buoy pit 140;
the lamp 600 is moment balanced, and no moment acts on the lamp pole 410;
the four first guide balls 440 and the four second guide balls 450 tighten the set screws, the ball bearings contact the lamp post, the set screws are loosened by 0.5-1 circle, and the lamp post enters a guide state;
four first bearing bushes 420 and four second bearing bushes 430, the tightness degree of the tightening screws at the ends of the 8 slotted long cylinders is adjusted, and the static friction force of the bearing bushes is approximately equal to the buoyancy force of the buoy in the water level change interval
Operation process of passive lifting method of waterscape lamp
(1) Working period of electromagnet lamp post clamping device
if(t∈TPower loss)
The electromagnet lamp post clamping device is powered off and turned on
else
Electricity of electromagnet lamp pole clamping device
The clamping mechanism is separated from the lamp post
(2) Height control of a luminaire
Case 1: the friction force of the buoy buoyancy, the lamp post/the weight, the first bearing bush/the second bearing bush is multiplied by 4 is more than or equal to 0
The buoy, the lamp post and the lamp are lifted and turned to the third position
Case 2: the friction force of the lamp post/the lamp post with weight, buoyancy of the buoy and the first bearing bush/the second bearing bush is more than or equal to 0
Lowering the buoy, the lamp post and the lamp, and turning the lamp to the third position
Case 3: others
Buoy, lamp post and lamp maintaining original state
(3) Cycle of passive lifting
And (1).
Description 5: after the system runs for a long time, the height control sensitivity determined by the friction force of the sliding pair of the bearing bush and the lamp post can drift. The solution is as follows: if the system allows the altitude sensitivity to be changed within a certain range, the counterweight arranged in the buoy 210 is increased or decreased; if the sensitivity of the system to the height is strict, the tightness degree of 8 slotted long cylindrical end set screws is adjusted for four first bearing shoes 420 and four second bearing shoes 430.

Claims (2)

1. A passive lifting system of a waterscape lamp is characterized in that the system consists of a water diversion unit (100), a buoy unit (200), a lamp holder unit (300), a lamp post unit (400), an electromagnet lamp post clamping device (500) and a lamp (600); the water diversion unit (100) comprises a water diversion pipe (110), a filter screen (120), an electric brake (130) and a buoy pit (140), the buoy unit (200) comprises a buoy (210), three centering circular wheels (220) and a counterweight (230), the lamp holder unit (300) comprises a lamp holder (310), a lamp post (320) and a lamp post cover (330), and the lamp post unit (400) comprises a lamp post (410), four first bearing bushes (420) with buoyancy sensitivity, four second bearing bushes (430) with buoyancy sensitivity, four first guide balls (440) and four second guide balls (450); when the electromagnet lamp pole clamping device (500) is powered off, the clamping mechanism fixes the lamp pole under the action of spring force, when the power is on, the electromagnetic force overcomes the spring force, and the clamping mechanism is separated from the lamp pole; the surface of a lamp post (410) made of aluminum is hardened, the lamp (600) is in torque balance, and no torque acts on the lamp post (410);
the design position of a water intake of the water conduit (110) is between the bottom of a river bed and a low water level, a water outlet is arranged at the bottom of the side wall of the float bowl pit (140), a filter screen (120) is arranged at the water intake, an electric brake (130) is arranged at the water outlet, and when the float bowl pit (140) is cleaned by system maintenance, the filter screen (120), the electric brake (130) is closed, high-pressure water is added into the float bowl pit (140), and the electric brake (130) is opened and the float bowl pit (140) is cleaned; the buoy (210) is concentric with the buoy pit (140) through three centering round wheels (220), the three centering round wheels (220) are three centering round wheels separated by 120 degrees, the wheel rod fixing ends of the centering round wheels are hinged to the buoy (210), and the compression spring pushes and presses the wheel rods to enable the round wheels to be in close contact with the wall of the buoy pit (140); a counterweight (230) for adjusting buoyancy of the buoy is arranged in the buoy (210), and the buoyancy of the buoy with the built-in counterweight is multiplied by 80% and is approximately equal to the weight of a lamp post, the weight of a lamp, the friction force of four first bearing bushes and the friction force of four second bearing bushes; the lamp post (410) is rigidly connected with the buoy (210), the buoy (210) has three different heights corresponding to the low water level, the normal water level and the flood level of the river channel, the lamp post (410) also has three different heights corresponding to one, the lamp post rises and falls along with the buoy, the buoy rises and falls along with the water level, and the illumination distance of the lamp is controlled to be maintained in a reasonable interval;
the arrangement place of the lamp holder (310) is a river bank, the lamp post (320) is arranged on the lamp holder (310), the top end of the lamp post (320) is provided with a lamp post cover (330), and the electromagnet lamp post clamping device (500) is arranged on the lamp post cover (330); the lamp post (410) is inserted into the lamp post (320), the lamp post and the lamp post are concentric, the lamp post (410) does lifting motion along the vertical direction of the lamp post, and a round hole required by the lifting motion of the lamp post is reserved in the center of the lamp post cover (330); the bottom and the top of the lamp post (320) are respectively provided with four first bearing bush mounting holes (322) and four second bearing bush mounting holes (323), the four first bearing bush mounting holes (322) are distributed at intervals of 90 degrees, and the four second bearing bush mounting holes (323) are also distributed at intervals of 90 degrees; four first guide ball mounting holes (324) and four second guide ball holes (325) are arranged between the four first bearing bush mounting holes (322) and the four second bearing bush mounting holes (323) at equal intervals, and the hole opening mode is the same as that of the four first bearing bush mounting holes (322);
the four first bearing bushes (420) respectively comprise a 1 st bearing bush module (421), a 2 nd bearing bush module (422), a 3 rd bearing bush module (423) and a 4 th bearing bush module (424), and the 4 bearing bush modules are distributed at intervals of 90 degrees and are respectively installed in the four first bearing bush installation holes (322);
the bearing bush holes of the 1 st bearing bush module (421) are distributed with bearing bush rectangular holes and bearing bush circular holes for tapping internal threads along the radial direction of a lamp pole (410); the 1 st cuboid sliding block (4211) is connected with the 2 nd cuboid sliding block (4213) through a spring (4212) and is installed in a bearing rectangular hole, and the end surface of the 1 st cuboid sliding block (4211) contacted with the lamp post (410) is processed into a lamp post curvature cambered surface; a slotted long cylindrical end set screw (4214) is screwed into a circular hole of the bearing bush for tapping the internal thread, and the end surface of the long cylindrical end of the set screw is connected with the end surface of the 2 nd cuboid slider; the material of the 1 st cuboid slide block is graphite fiber reinforced polytetrafluoroethylene; screwing a slotted long column end set screw (4214), wherein the end surface of the long column end of the set screw pushes a 2 nd cuboid slider (4213), a spring (4212), a 1 st cuboid slider (4211) and a lamp post (410), the pressure of a 1 st bearing bush module (421) on the lamp post (410) is increased, the friction force of the lamp post (410) is increased when the lamp post (410) does lifting motion along the vertical direction of the lamp post, and vice versa;
the composition structure and the principle of the 2 nd bearing bush module (422), the 3 rd bearing bush module (423) and the 4 th bearing bush module (424) are the same as those of the 1 st bearing bush module (421), and the four second bearing bushes (430) are also the same as those of the four first bearing bushes (420);
the four first guide balls (440) comprise a 1 st guide ball module (441), a 2 nd guide ball module (442), a 3 rd guide ball module (443) and a 4 th guide ball module (444), and the 4 guide ball modules are distributed at intervals of 90 degrees and are respectively installed in the four first guide ball installation holes (324);
a guide ball rectangular hole and a guide ball circular hole for tapping an internal thread are distributed in a guide ball hole of the 1 st guide ball module (441) along the radial direction of the lamp post (410); the cuboid slider (4412) is embedded with ball bearings (4411) by taking the structural opening of the outer ring of the ball bearing as reference, and is arranged in a rectangular hole of a guide ball; a slotted long cylindrical end set screw (4413) is screwed into the guide spherical circular hole for tapping the internal thread, and the end surface of the long cylindrical end of the set screw is connected with the end surface of the cuboid slider; the material of the cuboid slider is graphite fiber reinforced polytetrafluoroethylene; screwing a slotted long cylindrical end set screw (4413), wherein the end surface of the long cylindrical end of the set screw pushes a cuboid slider (4412) and a ball bearing (4411), the distance between the No. 1 guide ball module (441) and the lamp post (410) is shortened to zero, and vice versa;
the composition and principle of the 2 nd guide ball module (442), the 3 rd guide ball module (443) and the 4 th guide ball module (444) are the same as those of the 1 st guide ball module (421), and the four second guide balls (450) are also the same as those of the first guide balls (440).
2. A passive lifting method of a waterscape lamp using the passive lifting system of claim 1, wherein the flow of the method comprises a preparation flow of the passive lifting method of the waterscape lamp, and an operation flow of the passive lifting method of the waterscape lamp;
preparation process of waterscape lamp passive lifting method
Figure DEST_PATH_IMAGE001
Setting operating parameters of passive lifting system of waterscape lamp
Buoyancy sensitivity: the buoyancy of the buoy corresponding to the illumination distance change interval, namely the water level change interval is approximately equal to the static friction of the four first bearing bushes and the static friction of the four second bearing bushes
Working period T = T of electromagnet lamp post clamping devicePower loss+TGet electricity,TPower loss» TGet electricity
Figure 816340DEST_PATH_IMAGE002
Adjustment waterscape lamp passive lifting system
Increase and decrease the balance weight built in the buoy (210) and decrease and increase the buoyancy of the buoy
Three centering round wheels (220) are adjusted and calibrated to ensure that the buoy (210) and the buoy pit (140) are concentric
Lamp (600) has balanced moment and no moment acting on lamp pole (410)
The four first guide balls (440) and the four second guide balls (450) are screwed tightly to the set screw, the ball balls are in contact with the lamp post, the set screw is unscrewed for 0.5-1 circle, and the lamp post enters a guide state; the guiding state is a critical state that the ball bearing and the lamp post are in contact and non-contact;
four first bearing bushes (420) and four second bearing bushes (430), the tightness degree of the tightening screws at the ends of the 8 slotted long cylinders is adjusted, and the static friction force of the bearing bushes is approximately equal to the buoyancy force of the buoy in the water level change interval
Operation process of passive lifting method of waterscape lamp
Figure 218503DEST_PATH_IMAGE001
Working process of electromagnet lamp post clamping device in working period
If (T ∈ T)Power loss
Electricity-losing parallel connection of electromagnet lamp pole clamping device
Figure DEST_PATH_IMAGE003
Then
Electricity of electromagnet lamp pole clamping device
The clamping mechanism is separated from the lamp post
Figure 825064DEST_PATH_IMAGE002
Height control of a luminaire
Case 1: buoyancy of float bowl, weight of lamp pole, weight of lamp, static friction force of four first bearing bushes and static friction force of four second bearing bushes are more than or equal to 0
The float bowl, the lamp post and the lamp rise and rotate
Figure 224953DEST_PATH_IMAGE003
Case 2: the weight of the lamp post, the weight of the lamp, the buoyancy of the buoy, the static friction force of the four first bearing bushes and the static friction force of the four second bearing bushes are not less than 0
The float bowl, the lamp post and the lamp descend and rotate
Figure 244861DEST_PATH_IMAGE003
Case 3: others
Buoy, lamp post and lamp maintaining original state
Figure 683671DEST_PATH_IMAGE003
Cycle of passive lifting
Rotating shaft
Figure 613581DEST_PATH_IMAGE001
CN201810532767.7A 2018-05-29 2018-05-29 Passive lifting system and method for waterscape lamp Expired - Fee Related CN108954146B (en)

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