CN108118843B - Automatic snow removing equipment for vegetable greenhouse - Google Patents
Automatic snow removing equipment for vegetable greenhouse Download PDFInfo
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- CN108118843B CN108118843B CN201711379575.9A CN201711379575A CN108118843B CN 108118843 B CN108118843 B CN 108118843B CN 201711379575 A CN201711379575 A CN 201711379575A CN 108118843 B CN108118843 B CN 108118843B
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- worm shaft
- control system
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- 235000013311 vegetables Nutrition 0.000 title claims abstract description 25
- 238000010408 sweeping Methods 0.000 claims abstract description 33
- 238000005096 rolling process Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims description 44
- 230000009471 action Effects 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 description 12
- 238000004804 winding Methods 0.000 description 5
- 241001417527 Pempheridae Species 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/10—Snow traps ; Removing snow from roofs; Snow melters
- E04D13/106—Snow removing devices
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The invention discloses automatic snow removing equipment for a vegetable greenhouse, which belongs to the technical field of snow removing equipment and comprises a snow removing device, a traveling device and a control device; the snow sweeping device comprises a first motor, a worm shaft and worm wheels matched with the worm shaft, the worm shaft is driven by the first motor to rotate, a plurality of worm wheels are arranged on the worm shaft along the axial direction of the worm shaft, each worm wheel is connected with a rolling brush, the worm shaft rotates to drive the worm wheels to rotate, and the worm wheels rotate to drive the rolling brushes to rotate; the upper end and the lower end of the worm shaft are respectively connected with the travelling device, and the worm shaft is driven by the travelling device to reciprocate along the length direction of the greenhouse; the control device comprises a PLC control system, and the start and stop of the first motor are controlled by the PLC control system. The invention has simple structure and convenient operation, can realize automatic snow removal, has high intelligent degree and saves manpower and material resources.
Description
Technical Field
The invention belongs to the technical field of snow removing equipment, and particularly relates to automatic snow removing equipment for vegetable greenhouses.
Background
The development of greenhouse planting technology changes the operation mode of the vegetable, melon and fruit planting industry which excessively depends on weather. However, greenhouse technology is still affected to some extent by the weather, which is particularly common in northern areas. Excessive snow not only damages the greenhouse structure and even collapses the greenhouse, but also seriously influences the crop to receive illumination, thereby influencing the growth of the crop. At present, measures adopted for the greenhouse in snowy weather mainly aim at the structure of the greenhouse, and the snow removing method also mainly depends on manpower.
Patent CN102405799a discloses a mechanical scraping and electrical heating combination formula snow removing greenhouse, the device adopts mechanical scraping and electrical heating combination mode to remove snow, it needs to lay special electrothermal tube, the cost is higher, outdoor temperature is very low in winter in addition, adopt the extravagant energy of electrical heating mode, in addition, the motor of the device is installed in the central authorities of greenhouse, lean on controlling the snow removing plate and strike off the snow, if the length of greenhouse is very long then need extension controlling the length of snow removing plate, and then the weight of snow removing plate has been aggravated, and along with the length increase of snow removing plate, the area of snow removing also increases, and then make the impetus of snow removing sharply increase, when snow thickness is great, if the snow removing plate is not enough to be crossed to the height of controlling the snow removing plate, fall the rear of snow removing plate, cause snow removing device inefficacy.
The patent application CN107288273A discloses an automatic snow sweeping device for a greenhouse, wherein four identical travelling wheels are arranged at the bottom of a snow sweeping vehicle, the snow sweeping vehicle freely slides on a longitudinal guide rail through the travelling wheels, snow sweeping wheels are arranged at the front part of the snow sweeping vehicle, the snow sweeping wheels are connected with a large belt wheel through shafts, a snow sweeping motor is connected with a small belt wheel through shafts, the small belt wheel drives the large belt wheel to rotate through a belt, and then the snow sweeping wheels are driven to rotate to sweep snow; the tail of the snow sweeper is provided with two identical elastic rotating arms, the big arms of the elastic rotating arms are fixed on the snow sweeper, the small arms of the elastic rotating arms are connected with the big arms through pin shafts, springs are arranged in the small arms, the tail of the snow sweeper is connected with a steel wire rope, the steel wire rope penetrates through two identical grooved wheels to be wound on a winding wheel, and the winding wheel is connected with a winding motor and fixed on a dragging vehicle. When the snow removal truck performs snow removal operation at the inclined part of the longitudinal guide rail, the whole snow removal truck moves to the lower edge of the greenhouse along the longitudinal guide rail under the action of self gravity, and simultaneously, the snow removal wheel arranged at the front part of the snow removal truck rotates to remove snow under the drive of the snow removal motor and the belt. When the snow removal truck moves to the lowest edge of the greenhouse, the snow removal wheels on the greenhouse are in a row, snow is cleaned, the wire winding motor rotates to wind the wire rope on the wire winding wheels, and the wire rope drives the snow removal truck to move upwards. By utilizing the automatic snow sweeping device, the whole greenhouse structure is required to be provided with the guide rail matched with the automatic snow sweeping device, and the greenhouse structure is required to bear the weight of the snow sweeping vehicle and the guide rail, so that the integral counterweight of the greenhouse structure in snowy weather is increased, and the operation of other heat preservation devices on the greenhouse structure can be prevented.
In addition, the existing greenhouse snow sweeping device mostly has the problems of low automation and intelligent degree, if the greenhouse is snowed at night, snow sweeping work is started in daytime the next day, the accumulation at night causes thickening of snow layers, inconvenience is brought to cleaning work, and if the snow falling amount at night is too large, collapse can occur at night sometimes when the greenhouse structure bears the heavy snow layers, and serious loss is caused.
It is seen that there is a need for further improvements and enhancements in the art.
Disclosure of Invention
The invention provides the automatic snow removing equipment for the vegetable greenhouse to avoid the defects in the prior art, so that the automatic snow removing of the greenhouse is realized, and the collapse of the greenhouse caused by excessive snow is avoided.
The technical scheme adopted by the invention is as follows:
an automatic snow removing device for vegetable greenhouse comprises a snow sweeping device, a traveling device and a control device; the snow sweeping device comprises a first motor, a worm shaft and worm wheels matched with the worm shaft, the worm shaft is driven by the first motor to rotate, a plurality of worm wheels are arranged on the worm shaft along the axial direction of the worm shaft, each worm wheel is connected with a rolling brush, the worm shaft rotates to drive the worm wheels to rotate, and the worm wheels rotate to drive the rolling brushes to rotate; the upper end and the lower end of the worm shaft are respectively connected with the travelling device, and the worm shaft is driven by the travelling device to reciprocate along the length direction of the greenhouse; the control device comprises a PLC control system, and the start and stop of the first motor are controlled by the PLC control system.
The control device further comprises a trigger mechanism used for sending a signal to the PLC control system to start the first motor to act, the trigger mechanism comprises a pressure sensor and a snow accumulator, when snow on the snow accumulator is accumulated to a certain thickness, the snow accumulator triggers the pressure sensor, the pressure sensor sends a signal to the PLC control system, and the PLC control system controls the first motor to start.
The snow collector comprises a snow accumulation plate and a sleeve integrally and fixedly connected with the snow accumulation plate, a pressure sensor is arranged below the sleeve, a contact for triggering the pressure sensor is arranged at the bottom of the sleeve, snow is accumulated on the snow accumulation plate, when the snow accumulation plate reaches a certain thickness, the snow accumulation plate and the sleeve move downwards under the action of the gravity of the snow, the contact touches the pressure sensor, and the pressure sensor sends signals to the PLC control system.
The trigger mechanism is characterized in that the trigger mechanism further comprises a second motor used for driving the sleeve to rotate together with the snow collecting plate so as to clean snow on the snow collecting plate, a convex clamping plate is arranged on an output shaft of the second motor, a clamping groove which is opposite to the clamping plate in position and is matched with the clamping plate is formed in the inner wall of the sleeve, the output shaft of the second motor rotates to drive the sleeve to rotate, the snow collecting plate connected with the sleeve is driven to rotate, and snow above the snow collecting plate is cleaned under the action of centrifugal force.
The trigger mechanism further comprises a return spring arranged between the bottom end of the snow accumulating plate and the top end of the output shaft of the second motor.
The control device further comprises an infrared sensor arranged on the greenhouse, the infrared sensor is used for detecting the snow thickness on the surface of the greenhouse and transmitting snow thickness signals to the PLC control system, a snow thickness reference value is stored in the PLC control system, if the snow thickness detected by the infrared sensor exceeds the snow thickness reference value, the PLC control system controls the first motor to continue to work, and if the snow thickness detected by the infrared sensor is smaller than the snow thickness reference value, the PLC control system controls the snow sweeping device to stop working.
The infrared sensor can be used as a standby triggering mechanism for triggering the action of the first motor.
The walking device comprises an upper walking mechanism and a lower walking mechanism, the upper and lower walking mechanisms have the same structure, each of the upper and lower walking mechanisms comprises a driving roller, a driven roller and a synchronous belt for enabling the driving sprocket and the driven sprocket to form linkage, the driving roller of the upper walking mechanism is sleeved at the upper end of the worm shaft, the driving roller of the lower walking mechanism is sleeved at the lower end of the worm shaft, and the worm shaft rotates under the drive of the first motor, so that the driving roller is driven to rotate.
The upper portion of big-arch shelter has laid the upper guide rail along its length direction, and the lower guide rail has been laid along its length direction to the lower part of big-arch shelter, upper and lower guide rail and initiative gyro wheel and driven gyro wheel looks adaptation.
The control device also comprises an alarm indicator lamp or an alarm, and the alarm indicator lamp or the alarm is arranged outside the greenhouse.
The control device further comprises a work indicator lamp, and the work indicator lamp is arranged outside the greenhouse.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the trigger mechanism, the snow sweeping device, the infrared sensor and the PLC control system are matched with each other, so that an automatic snow removing function is realized, the phenomenon that the vegetable greenhouse is collapsed due to snow is avoided, the structure is simple, the operation is convenient, the automation degree is high, the manpower is greatly saved, and the snow removing efficiency is improved.
2. The snow sweeping device can reciprocate along the length direction of the greenhouse, so that snow sweeping is realized, when the snow sweeping is not needed, the snow sweeping device can return to the initial position, normal operation of other heat preservation devices on the vegetable greenhouse is not hindered, and energy conservation of the whole device of the vegetable greenhouse is realized. In addition, the invention has convenient installation and maintenance and lower manufacturing cost, and is suitable for being modified and added on the basis of the existing greenhouse equipment.
3. The snow sweeping device can be started by the triggering mechanism, and can also be selectively triggered according to the detection result of the infrared sensor, the phenomenon that the snow sweeping device cannot be started normally when the triggering mechanism or the infrared sensor is damaged is avoided due to the dual triggering design, and a powerful guarantee is provided for the snow accumulation prevention function of the vegetable greenhouse.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of the triggering mechanism in the present invention.
Fig. 3 is a schematic structural view of the upper traveling mechanism in the present invention.
Fig. 4 is a schematic diagram showing the relative positional relationship between a part of the worm shaft and a part of the worm wheel in the present invention.
Fig. 5 is a control schematic of the present invention.
Wherein,
1. the PLC control system 2, the motor driver 3, the first motor 4, the lower running mechanism 5, the infrared sensor 6, the upper running mechanism 61, the driving roller 62, the driven roller 63, the synchronous belt 7, the rolling brush 8, the worm shaft 9, the upper guide rail 10, the heat preservation device 11, the shed body structure 12, the alarm indicator or alarm 13, the work indicator 14, the lower guide rail 15, the triggering mechanism 151, the second motor 152, the pressure sensor 153, the snow cover 154, the sleeve 155, the return spring 16 and the worm gear
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples, but the invention is not limited to these examples.
Example 1:
as shown in fig. 1 to 5, an automatic snow removing apparatus for a vegetable greenhouse includes a snow sweeping device, a traveling device, and a control device.
The snow sweeping device comprises a first motor 3, a worm shaft 8 and a worm wheel 16 matched with the worm shaft 8. The first motor 3 is a servo motor. The worm shaft 8 is driven to rotate by the first motor 3, and a plurality of worm wheels 16 are provided on the worm shaft 8 in the axial direction thereof. Because the slope of the upper half part of the shed body structure 11 of the greenhouse is slower, the slope of the lower half part of the shed body structure 11 of the greenhouse is steeper, snow accumulation is easy to form in the shed body structure 11 of the upper half part, the snow of the shed body structure 11 of the lower half part is less compared with that of the shed body structure 11 of the upper half part, and when the snow on the shed body of the upper half part slides, the snow on the shed body of the lower half part can be driven to slide downwards in a following way, so that the shed body structure of the greenhouse is suitable for the shed body structure of the greenhouse, and a plurality of worm gears 16 are concentrated on the upper half part of the worm shaft 8.
Every worm wheel 16 department all is connected with a rolling brush 7, and rolling brush 7 can contact the snow on the big-arch shelter, and worm shaft 8 rotation drives worm wheel 16 rotation, and worm wheel 16 rotation drives rolling brush 7 rotation. In this embodiment, the worm wheel 16 is located below the worm shaft 8, the rolling brush 7 is sleeved on the central shaft of the worm wheel 16 and rotates around the central shaft, the axial direction of the central shaft of the worm wheel 16 is approximately parallel to the length direction of the greenhouse, snow can be loosened during rotation of the rolling brush 7, and meanwhile, the snow and the heat insulation layer on the greenhouse are driven to shake, so that the snow slides down under the action of gravity.
The walking device comprises an upper walking mechanism 6 and a lower walking mechanism 4, the upper and lower walking mechanisms have the same structure, each of the upper and lower walking mechanisms comprises a driving roller 61, a driven roller 62 and a synchronous belt 63 for enabling a driving sprocket and a driven sprocket to form linkage, the driving roller 61 of the upper walking mechanism is sleeved at the upper end of the worm shaft 8, the driving roller 61 of the lower walking mechanism is sleeved at the lower end of the worm shaft 8, and the worm shaft 8 rotates under the drive of the first motor 3, so that the driving roller 61 is driven to rotate. The driven rollers 62 of the upper and lower travelling mechanisms are two, the two driven rollers 62 are respectively positioned at two sides of the driving roller 61, and the driven roller 62 is driven to rotate by the synchronous belt 63 when the driving roller 61 rotates, so that the snow sweeping device is driven to integrally reciprocate along the length direction of the greenhouse.
In order to facilitate the movement of the travelling device, an upper guide rail 9 is paved on the upper part of the greenhouse along the length direction of the greenhouse, a lower guide rail 14 is paved on the lower part of the greenhouse along the length direction of the greenhouse, and the upper guide rail and the lower guide rail are matched with a driving roller 61 and a driven roller 62.
The control device comprises a PLC control system 1 and a motor driver 2, wherein the PLC control system 1 controls the start and stop of a first motor 3 through the motor driver 2.
The control device further comprises a triggering mechanism 15 for sending a signal to the PLC control system 1 to activate the first motor 3. The triggering mechanism 15 is arranged at a position which can be contacted with external wind and snow outside the greenhouse. The triggering mechanism 15 comprises a pressure sensor 152 and an snow accumulator, when snow on the snow accumulator accumulates to a certain thickness, the snow accumulator triggers the pressure sensor 152, the pressure sensor 152 sends a signal to the PLC control system 1, and the PLC control system 1 controls the first motor 3 to start.
Specifically, the snow collector includes snow accumulation plate 153 and the sleeve 154 that links firmly with snow accumulation plate 153 an organic whole, and pressure sensor 152 sets up in the below of sleeve 154, and the bottom of sleeve 154 is provided with the contact that is used for triggering pressure sensor 152, snow pile up on snow accumulation plate 153, when reaching certain thickness, snow accumulation plate 153 and sleeve 154 move down under the action of snow gravity, the contact touches pressure sensor 152, pressure sensor 152 is to PLC control system 1 sends the signal, and PLC control system 1 controls the start of first motor 3.
The triggering mechanism 15 further comprises a second motor 151 for driving the sleeve 154 to rotate together with the snow accumulating plate 153 to clean snow on the snow accumulating plate 153. The start and stop of the second motor 151 are controlled by the PLC control system 1, and when the pressure sensor 152 transmits a signal to the PLC control system 1 to control the first motor 3 to start, the PLC control system 1 simultaneously controls the second motor 151 to start so as to clean snow on the snow plate 153.
Specifically, a protruding clamping plate is arranged on the output shaft of the second motor 151, a clamping groove which is opposite to the clamping plate in position and is matched with the clamping plate in position is formed in the inner wall of the sleeve 154, the output shaft of the second motor 151 rotates to drive the sleeve 154 to rotate, so that the snow collecting plate 153 connected with the sleeve 154 is driven to rotate, and snow above the snow collecting plate 153 is removed under the action of centrifugal force. The clamping groove and the clamping plate can also play a role in guiding the sleeve 154 to move up and down along the output shaft of the second motor 151.
The trigger mechanism 15 further includes a return spring 155, and the return spring 155 is disposed between the bottom end of the snow cover 153 and the top end of the output shaft of the second motor 151. When snow above the snow accumulating plate 153 is removed, the sleeve 154 together with the snow accumulating plate 153 is sprung up and returns to the initial position by the return spring 155.
The control device further comprises an infrared sensor 5 arranged on the greenhouse, the infrared sensor 5 is used for detecting the snow thickness on the surface of the greenhouse and transmitting a snow thickness signal to the PLC control system 1, and a snow thickness reference value is stored in the PLC control system 1. If the snow thickness detected by the infrared sensor 5 exceeds the snow thickness reference value, the PLC control system 1 controls the first motor 3 to continue to work; if the thickness of the snow detected by the infrared sensor 5 is smaller than the reference value of the thickness of the snow, the PLC control system 1 controls the first motor 3 to continue to rotate, so that the worm shaft 8 drives the driving roller 61 to rotate, the snow sweeping device returns to the initial position under the driving of the running gear, and the initial position is generally arranged on one side of the greenhouse, so that the interference of the normal operation of the heat preservation device above the greenhouse is avoided.
The infrared sensor 5 can be used at the same time as a backup trigger mechanism for triggering the action of the first motor 3. When the pressure sensor 152 and/or the snow collector fail and cannot timely transmit signals to the PLC control system 1, when the snow thickness detected by the infrared sensor 5 exceeds the snow thickness reference value stored in the PLC control system 1, the infrared sensor 5 transmits signals to the PLC control system and controls the start of the first motor 3 through the PLC control system 1.
The control device further comprises an alarm indicator lamp or an alarm 12, wherein the alarm indicator lamp or the alarm 12 is arranged outside the greenhouse, and a place which is easy to be found by greenhouse staff, such as an entrance and an exit of the greenhouse. The alarm indicator lamp or the alarm 12 is controlled by the PLC control system 1, and when the thickness of the accumulated snow exceeds a reference value, the alarm indicator lamp can be turned on or the alarm can be sounded.
The control device further comprises a work indicator lamp 13, wherein the work indicator lamp 13 is arranged at a place which is easy to be found by a worker outside the greenhouse, such as an entrance and exit of the greenhouse. The working indicator lamp 13 is controlled by the PLC control system 1, when the snow sweeping device is in the normal working process, the working indicator lamp 13 is on, and when the snow sweeping device stops working, the working indicator lamp 13 is off.
Example 2:
the present embodiment is basically the same in structure and principle as embodiment 1 described above, with the only difference that: in this embodiment, the worm wheel 16 is located at one side of the worm shaft 8, the rolling brush 7 is sleeved on the central shaft of the worm wheel 16 and rotates around the central shaft, the axial direction of the central shaft of the worm wheel 16 is approximately parallel to the height direction of the greenhouse, at this time, the rotation of the rolling brush 7 is similar to the rotation of the sweeping brush at the front end of the sweeper in the prior art, and the rolling brush 7 can loosen snow in the rotation process, and meanwhile drives snow and a heat insulation layer on the greenhouse to shake, so that the snow slides down under the action of gravity.
The snow collecting device can effectively control and clean snow on the vegetable greenhouse, so that the vegetable greenhouse is prevented from being collapsed due to excessive snow, the damage of the snow to the vegetable greenhouse is further prevented, and the greenhouse is effectively protected.
It should be noted that the snow sweeping device of the invention is not only applicable to vegetable greenhouses, but also applicable to other greenhouse structures similar to those of vegetable greenhouses so as to control and sweep snow on the tops of the greenhouses.
The parts not described in the invention can be realized by adopting or referring to the prior art.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The specific embodiments described herein are offered by way of illustration only, and are not intended to limit the scope of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (8)
1. The automatic snow removing device for the vegetable greenhouse is characterized by comprising a snow removing device, a traveling device and a control device; the snow sweeping device comprises a first motor, a worm shaft and worm wheels matched with the worm shaft, the worm shaft is driven by the first motor to rotate, a plurality of worm wheels are arranged on the worm shaft along the axial direction of the worm shaft, each worm wheel is connected with a rolling brush, the worm shaft rotates to drive the worm wheels to rotate, and the worm wheels rotate to drive the rolling brushes to rotate; the upper end and the lower end of the worm shaft are respectively connected with the travelling device, and the worm shaft is driven by the travelling device to reciprocate along the length direction of the greenhouse; the control device comprises a PLC control system, and the start and stop of the first motor are controlled by the PLC control system;
the upper running mechanism and the lower running mechanism are identical in structure, each upper running mechanism and each lower running mechanism comprises a driving roller, a driven roller and a synchronous belt for enabling the driving chain wheel and the driven chain wheel to form linkage, the driving roller of the upper running mechanism is sleeved at the upper end of the worm shaft, the driving roller of the lower running mechanism is sleeved at the lower end of the worm shaft, and the worm shaft is driven by the first motor to rotate, so that the driving roller is driven to rotate; the upper portion of big-arch shelter has laid the upper guide rail along its length direction, and the lower guide rail has been laid along its length direction to the lower part of big-arch shelter, upper and lower guide rail and initiative gyro wheel and driven gyro wheel looks adaptation.
2. The automatic snow removing apparatus for vegetable greenhouse of claim 1, wherein the control device further comprises a trigger mechanism for sending a signal to the PLC control system to start the first motor, the trigger mechanism comprises a pressure sensor and a snow accumulator, when the snow on the snow accumulator accumulates to a certain thickness, the snow accumulator triggers the pressure sensor, the pressure sensor sends a signal to the PLC control system, and the PLC control system controls the first motor to start.
3. The automatic snow removing device for vegetable greenhouse according to claim 2, wherein the snow collector comprises a snow accumulating plate and a sleeve integrally and fixedly connected with the snow accumulating plate, the pressure sensor is arranged below the sleeve, a contact for triggering the pressure sensor is arranged at the bottom of the sleeve, snow is accumulated on the snow accumulating plate, when the snow accumulating plate reaches a certain thickness, the snow accumulating plate and the sleeve move downwards under the action of the gravity of the snow, the contact contacts the pressure sensor, and the pressure sensor sends a signal to the PLC control system.
4. The automatic snow removing device for vegetable greenhouse according to claim 3, wherein the triggering mechanism further comprises a second motor for driving the sleeve to rotate together with the snow accumulating plate to clean snow on the snow accumulating plate, a convex clamping plate is arranged on an output shaft of the second motor, a clamping groove which is opposite to and matched with the clamping plate in position is formed in the inner wall of the sleeve, the output shaft of the second motor rotates to drive the sleeve to rotate, so that the snow accumulating plate connected with the sleeve is driven to rotate, and snow above the snow accumulating plate is cleaned under the action of centrifugal force.
5. The automatic snow removing apparatus for vegetable greenhouse as claimed in claim 4, wherein the trigger mechanism further comprises a return spring disposed between the bottom end of the snow accumulating plate and the top end of the output shaft of the second motor.
6. The automatic snow removing device for vegetable greenhouse according to claim 1, wherein the control device further comprises an infrared sensor arranged on the greenhouse, the infrared sensor is used for detecting the snow thickness on the surface of the greenhouse and transmitting a snow thickness signal to the PLC control system, the PLC control system stores a snow thickness reference value, if the snow thickness detected by the infrared sensor exceeds the snow thickness reference value, the PLC control system controls the first motor to continue to work, and if the snow thickness detected by the infrared sensor is smaller than the snow thickness reference value, the PLC control system controls the snow removing device to stop working; the infrared sensor can be used as a standby triggering mechanism for triggering the action of the first motor.
7. The automatic snow removing apparatus for vegetable greenhouse as claimed in claim 1, wherein the control means further comprises an alarm indication lamp or alarm, which is provided outside the greenhouse.
8. The automatic snow removing apparatus for vegetable greenhouse as claimed in claim 1, wherein the control means further comprises a work indicator lamp provided outside the greenhouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711379575.9A CN108118843B (en) | 2017-12-20 | 2017-12-20 | Automatic snow removing equipment for vegetable greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711379575.9A CN108118843B (en) | 2017-12-20 | 2017-12-20 | Automatic snow removing equipment for vegetable greenhouse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108118843A CN108118843A (en) | 2018-06-05 |
| CN108118843B true CN108118843B (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711379575.9A Active CN108118843B (en) | 2017-12-20 | 2017-12-20 | Automatic snow removing equipment for vegetable greenhouse |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025092B (en) * | 2018-08-26 | 2020-05-05 | 青岛理工大学 | Greenhouse snow removing device |
| CN109184097B (en) * | 2018-11-10 | 2020-12-01 | 六安永贞匠道机电科技有限公司 | Method for rapidly removing snow on roof of building |
| CN109750800B (en) * | 2019-03-15 | 2024-03-22 | 南京工程学院 | Snow remover for greenhouse |
| CN110258978B (en) * | 2019-07-03 | 2020-12-11 | 宜春市富锐气体有限责任公司 | Roof snow collecting and melting device capable of preventing snow from collapsing |
| CN111530788B (en) * | 2020-05-03 | 2021-08-06 | 云南奇机农林科技有限公司 | Agricultural greenhouse intelligent control device based on Internet of things technology and use method |
| CN112772230A (en) * | 2021-01-18 | 2021-05-11 | 陈琛 | Wisdom is vegetable planting big-arch shelter for agricultural based on thing networking |
| CN112942692B (en) * | 2021-02-05 | 2022-06-28 | 湛江市奕圆建筑工程有限公司 | House roof for building |
| CN113892373A (en) * | 2021-09-17 | 2022-01-07 | 程小萌 | Agricultural greenhouse with automatic snow removing function |
| CN115931043B (en) * | 2022-11-07 | 2023-10-03 | 河北北方学院 | Full-automatic intelligent control greenhouse for breeding potato stock |
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| CN108118843A (en) | 2018-06-05 |
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