CN2886220Y - Gear rack transmission device for greenhouse sunshade thermal insulating system - Google Patents

Gear rack transmission device for greenhouse sunshade thermal insulating system Download PDF

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Publication number
CN2886220Y
CN2886220Y CNU2006200407555U CN200620040755U CN2886220Y CN 2886220 Y CN2886220 Y CN 2886220Y CN U2006200407555 U CNU2006200407555 U CN U2006200407555U CN 200620040755 U CN200620040755 U CN 200620040755U CN 2886220 Y CN2886220 Y CN 2886220Y
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CN
China
Prior art keywords
rack
driving
greenhouse
transmission shaft
pinion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2006200407555U
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Chinese (zh)
Inventor
余一韩
蔡勋勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI QIANHUI GREENHOUSE ENGINEERING TECHNOLOGY Co Ltd
Original Assignee
SHANGHAI QIANHUI GREENHOUSE ENGINEERING TECHNOLOGY Co Ltd
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Application filed by SHANGHAI QIANHUI GREENHOUSE ENGINEERING TECHNOLOGY Co Ltd filed Critical SHANGHAI QIANHUI GREENHOUSE ENGINEERING TECHNOLOGY Co Ltd
Priority to CNU2006200407555U priority Critical patent/CN2886220Y/en
Application granted granted Critical
Publication of CN2886220Y publication Critical patent/CN2886220Y/en
Anticipated expiration legal-status Critical
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

Abstract

The utility modle relates to a rack-and-pinion driving device for a sunshade and heat preservation system in greenhouse including a driving mechanism, a vertical rod, a motion lever, a shipper bar, a rack-and-pinion gearing pair, charicterised in that the driving shaft is provided in south-north direction, and two sets of rack-and-pinion gearing pair driving reverse to each other are provided closely beside the driving shaft.Adopting the utility model, not only the daylight in greenhouse is increased, but also the quality of the crop is homogeneous, having the advantages that the driving shaft bears little force in the axial direction, the support points are not many, reliability is high and the like.

Description

The rack and pinion drive that is used for greenhouse sunshading and thermal insulating system
Technical field
The utility model relates to a kind of rack and pinion drive, specifically a kind of transmission device that is used for greenhouse sunshading and thermal insulating system.
Background technique
As an important composition part of industrialized agriculture, the greenhouse is playing crucial effect aspect the research of the production of the protection of the natural disaster of plant husbandry, anti-season flowers and agricultural products and new variety of plant.
Along with improving constantly of agriculture requirement, the greenhouse kind is from the development of simple single booth structure to medium-to-high grade connection plastics and glasshouse structure, and it is more and more general that the use of greenhouse sunshade and heat-insulation system also becomes.
The external sunshade system: be configured in top, greenhouse (outside), the external sunshade shade position is higher than the greenhouse ridge.General adopt the higher black mesh grid of sunshade rate, cooperate drive system, launch when strong by crossing, draw the net sheet when illumination is more weak in, regulate the illumination intensity that enters the greenhouse in illumination, and can regulate greenhouse interior environment temperature, and the temperature regulation effect is obvious.Heat preservation system inside: be configured in inside, greenhouse, the general mesh grid sheet that has insulation and shaded effects concurrently, the light color of adopting of inside thermal screen curtain.Owing to be woven with reflecting coating on the curtain, (long wave radiation, the film that is reflected stops can effectively to reduce the greenhouse internal heat loss that produces by radiation during expansion.Be used for the cloudy day that the greenhouse ambient temperature is lower or illumination is more weak, or night, and need keep higher greenhouse inside temperature the time).When the greenhouse does not dispose the external sunshade system, or when launching still can not satisfy behind the external sunshade curtain in the greenhouse environmental requirement, also can launch the inside thermal screen curtain, use as the internal sunshade device.Because illumination this moment has entered the greenhouse, the effect of internal sunshade is relatively poor relatively.
For improving the daylighting effect in greenhouse, existing greenhouse sunshading and thermal insulating system generally adopts day bank North and South direction to arrange.Be subjected to the restriction of structural strength, the spacing H in greenhouse (gutter length direction) is less, be 3 to 4 meters, and span L is bigger, is 6 to 12 meters.
The drive unit of sunshading and thermal insulating system has rope traction to drive and gear rack drives two kinds.The former reliability is lower, relative low price; Latter's reliability is higher, and cost also improves synchronously.Middle and high shelves greenhouse adopts gear rack actuating device more.
Consider that from the manufacturability made and intensity, rigidity the maximum factory length of tooth bar is 4 meters at present.Therefore, have the driving mode that the gear rack drive system all adopts tooth bar to move along spacing direction now.As shown in Figure 1, under this driving mode, sunshade, insulation curtain accumulate in greenhouse span direction (east-west direction) when drawing in.When the sun moves with respect to the greenhouse east-west direction, the shade that the curtain that draws in produces in the greenhouse is the distribution of East and West direction strip, and (north-south occurs one for per 3 to 4 meters, determine by the greenhouse spacing at interval), and the position dimension along the gutter direction changes less relatively, the crop that is in this position can not get sufficient illumination for a long time, causes quality badness.Simultaneously, total luminous flux that the area that shelters from heat or light of increase causes entering the greenhouse reduces, and reduced the temperature raising and maintaining effect in greenhouse, and temperature raising and maintaining is the major function in greenhouse.There is reduction greenhouse lighting rate, causes the crop quality deterioration; Defectives such as live axle requirement of strength height supports complexity, and system reliability is lower.
Summary of the invention
It is effective, simple in structure that technical problem to be solved in the utility model provides a kind of temperature raising and maintaining, the rack and pinion drive that is used for greenhouse sunshading and thermal insulating system that system reliability is high, shortcoming such as above-mentioned temperature raising and maintaining weak effect, system reliability that prior art exists are poor to overcome, cost height.
The technological scheme of the utility model technical solution problem is as follows:
A kind of rack and pinion drive that is used for greenhouse sunshading and thermal insulating system comprises driving mechanism, column, transmission shaft, movement rod, push rod and rack-and-pinion; Described driving mechanism is fixedly installed on the column, and fixedlys connected with transmission shaft; Described rack-and-pinion comprises driving gear and driving rack; Push rod is consistent with the driving rack direction and fixedly connected by link; Movement rod is perpendicular to push rod and be fixedly installed on the push rod; Described driving gear is fixedly installed on the transmission shaft; Described transmission shaft that direction is set is vertical with the movement direction of driving rack, it is characterized in that, described transmission shaft (3) is the North and South direction setting, whenever keeps at a certain distance away on the described transmission shaft to be provided with two groups of rack-and-pinions that are the opposite direction transmission, and two groups of rack-and-pinion close neighbours arrange.Described two groups of rack-and-pinions that are the opposite direction transmission are arranged on the both sides of transmission shaft, and wherein a toothed rack is positioned at the transmission shaft top, and another toothed rack is positioned at the transmission shaft below.
Curtain one end is fixed during use, the other end is fixedlyed connected with movement rod, and by the drive mechanism transmission shaft, thereby actuation gear drives the tooth bar motion, and then drive movement rod by the push rod of fixedlying connected with tooth bar and move along tooth bar moving direction, launch and draw in curtain.
Compared with prior art, the utility model is by being gutter direction layout with transmission shaft along North and South direction, and tooth bar moves along greenhouse span direction.Simultaneously, adopt forward and reverse method of respectively arranging set of gears tooth bar pair on same live axle, make curtain be positioned at the gutter top when drawing in, move in the middle of the greenhouse from the both sides gutter respectively when curtain launches.Because the distance that moves of tooth bar is the greenhouse span half, adopt the tooth bar of 4 meters length can finish the driving of sunshading and thermal insulating device that span is 8 meters greenhouse.Because curtain is positioned at directly over the gutter when drawing in, and is overlapping in its projection of the meridian hour and gutter projection that illumination is the strongest, do not produce new shadow band, improved ground, greenhouse lighting quantity to greatest extent; And along with the East and West direction of the sun moves, its strip projection also in the same moved further of greenhouse span direction, helps crop field quality homogenization.In addition, forward and reverse tooth bar is arranged and has also been improved the transmission system overall performance.Because in opposite directions the suffered driving resistance of tooth bar size is close, direction is opposite, at two sleeve gear tooth bar countershafts to distance hour, its radial force to live axle can be cancelled out each other.Thus, compare, can adopt the more live axle of small axle diameter, reduce the live axle number of support points, thereby simplified structure reduces system cost, improves system reliability with existing driving mode.Adopt the utility model not only can improve the whole lighting quantity in greenhouse; And crop quality is even; It is less to have the transmission shaft radial force, and the strong point is few, the reliability advantages of higher.
Description of drawings
Fig. 1 is the facade structures schematic representation of prior art;
Fig. 2 is the plan structure schematic representation of prior art;
Fig. 3 is the facade structures schematic representation of rack and pinion drive of the present invention;
Fig. 4 is the plan structure schematic representation of rack and pinion drive of the present invention.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing.Curtain 9 is in expanded position among the figure.
As shown in Figure 3 and Figure 4, the utility model is used for the rack and pinion drive of greenhouse sunshading and thermal insulating system, comprises driving mechanism 1, column 2, transmission shaft 3, movement rod 4, push rod 5 and rack-and-pinion; Described driving mechanism 1 is fixedly installed on the column, and fixedlys connected with transmission shaft 3; Described rack-and-pinion comprises driving gear 6 and driving rack 7; Push rod 5 is consistent with driving rack 7 directions and fixedly connected by link; Movement rod 4 is perpendicular to push rod 5 and be fixedly installed on the push rod 5; Described driving gear 6 is fixedly installed on the transmission shaft 3; Described transmission shaft 3 that direction is set is vertical with the movement direction of driving rack 7, described transmission shaft 3 is the North and South direction setting, whenever keeps at a certain distance away on the described transmission shaft to be provided with two groups of rack-and-pinion A and the B that is the opposite direction transmission.Rack-and-pinion A comprises driving gear 6 and driving rack 7, and rack-and-pinion B comprises driving gear 6 ' and driving rack 7 '.
Described column 2 is arranged on ground gutter 8 positions.
The described a pair of rack-and-pinion that is the opposite direction transmission is arranged on the both sides of transmission shaft, the driving rack 7 of one of them rack-and-pinion A is arranged on transmission shaft 3 tops, the driving rack 7 ' of another one rack-and-pinion B is arranged on transmission shaft 3 belows, referring to shown in Figure 4, the transmission direction of arrow P direction indication rack-and-pinion A among the figure.Arrow P among the figure ' transmission direction of direction indication rack-and-pinion B.

Claims (3)

1. a rack and pinion drive that is used for greenhouse sunshading and thermal insulating system comprises driving mechanism (1), column (2), transmission shaft (3), movement rod (4), push rod (5) and rack-and-pinion; Described driving mechanism (1) is fixedly installed on the column, and fixedlys connected with transmission shaft (3); Described rack-and-pinion comprises driving gear (6) and driving rack (7); Push rod (5) is consistent with driving rack (7) direction and fixedly connected by link; Movement rod (4) is perpendicular to driving rack (7) and be fixedly installed on the push rod (5); Described driving gear (6) is fixedly installed on the transmission shaft (3); Described transmission shaft (3) that direction is set is vertical with the movement direction of driving rack (7), it is characterized in that, described transmission shaft (3) is the North and South direction setting, whenever keeps at a certain distance away on the described transmission shaft to be provided with two groups of rack-and-pinions that are the opposite direction transmission, and two groups of rack-and-pinion close neighbours arrange.
2. the rack and pinion drive that is used for greenhouse sunshading and thermal insulating system according to claim 1 is characterized in that, described column (2) is arranged on gutter on the ground (8) position.
3. the rack and pinion drive that is used for greenhouse sunshading and thermal insulating system according to claim 1, it is characterized in that, described two groups of rack-and-pinions that are the opposite direction transmission are arranged on the both sides of transmission shaft, and wherein a toothed rack is positioned at the transmission shaft top, and another toothed rack is positioned at the transmission shaft below.
CNU2006200407555U 2006-04-03 2006-04-03 Gear rack transmission device for greenhouse sunshade thermal insulating system Expired - Lifetime CN2886220Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006200407555U CN2886220Y (en) 2006-04-03 2006-04-03 Gear rack transmission device for greenhouse sunshade thermal insulating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006200407555U CN2886220Y (en) 2006-04-03 2006-04-03 Gear rack transmission device for greenhouse sunshade thermal insulating system

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CN2886220Y true CN2886220Y (en) 2007-04-04

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CNU2006200407555U Expired - Lifetime CN2886220Y (en) 2006-04-03 2006-04-03 Gear rack transmission device for greenhouse sunshade thermal insulating system

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102676185A (en) * 2012-05-08 2012-09-19 吴小杰 Horizontal braking moment self-energizing cycloid-rack pushing device
CN102676183A (en) * 2012-05-08 2012-09-19 吴小杰 Self-incrementing cycloidal-gear coke pushing device of horizontal type braking moment
CN102676184A (en) * 2012-05-08 2012-09-19 吴小杰 Horizontal braking torque self-increased cycloid-rack coke pushing device
CN103563688A (en) * 2013-10-12 2014-02-12 林智勇 Light-transmitting and heat-insulating cover of greenhouse
CN105028292A (en) * 2015-08-19 2015-11-11 福建省农业科学院科技干部培训中心 Industrial fish-farming greenhouse suitable for southern coastal areas

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102676185A (en) * 2012-05-08 2012-09-19 吴小杰 Horizontal braking moment self-energizing cycloid-rack pushing device
CN102676183A (en) * 2012-05-08 2012-09-19 吴小杰 Self-incrementing cycloidal-gear coke pushing device of horizontal type braking moment
CN102676184A (en) * 2012-05-08 2012-09-19 吴小杰 Horizontal braking torque self-increased cycloid-rack coke pushing device
CN102676185B (en) * 2012-05-08 2013-10-16 吴小杰 Horizontal braking moment self-energizing cycloid-rack pushing device
CN102676184B (en) * 2012-05-08 2013-10-16 吴小杰 Horizontal braking torque self-increased cycloid-rack coke pushing device
CN102676183B (en) * 2012-05-08 2014-03-12 吴小杰 Self-incrementing cycloidal-gear coke pushing device of horizontal type braking moment
CN103563688A (en) * 2013-10-12 2014-02-12 林智勇 Light-transmitting and heat-insulating cover of greenhouse
CN105028292A (en) * 2015-08-19 2015-11-11 福建省农业科学院科技干部培训中心 Industrial fish-farming greenhouse suitable for southern coastal areas
CN105028292B (en) * 2015-08-19 2018-01-09 福建省农业科学院科技干部培训中心 A kind of suitable the coastal south industrial fish farming greenhouse

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Granted publication date: 20070404