CN113263038A - Intelligent bidirectional traction dust falling curtain net driving mechanism for large-span foundation pit construction - Google Patents
Intelligent bidirectional traction dust falling curtain net driving mechanism for large-span foundation pit construction Download PDFInfo
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- CN113263038A CN113263038A CN202110656412.0A CN202110656412A CN113263038A CN 113263038 A CN113263038 A CN 113263038A CN 202110656412 A CN202110656412 A CN 202110656412A CN 113263038 A CN113263038 A CN 113263038A
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 43
- 238000010276 construction Methods 0.000 title claims abstract description 36
- 239000000428 dust Substances 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000001681 protective effect Effects 0.000 abstract description 52
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 description 6
- 238000005507 spraying Methods 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
- B08B17/04—Preventing deposition of fouling or of dust by using removable coverings
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- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
The invention relates to the technical field of foundation pit construction, in particular to comprehensive prevention and control of a foundation pit construction environment, and discloses an intelligent bidirectional traction dust falling curtain net driving mechanism for large-span foundation pit construction, which comprises a plurality of groups of supporting structures which are oppositely arranged on two sides of a foundation pit, wherein each group of supporting structures comprises a local side supporting unit and an opposite side supporting unit which are correspondingly matched; the protection system further comprises a bidirectional traction mechanism, the driving traction cable is a circulating cable connected end to end, and the driving traction cable comprises a bidirectional traction section which is parallel to the protection curtain and opposite in driving direction. The invention adopts a bidirectional traction structure, can realize curtain net protection of a large-span foundation pit, reduces the strength requirement on a protective curtain, also improves the efficiency of curtain net protection operation, realizes the opening and closing of the curtain net protection by automatic and intelligent operation, and greatly facilitates the treatment of the construction environment at the foundation pit.
Description
Technical Field
The invention relates to the technical field of foundation pit construction, particularly relates to comprehensive prevention and control of a foundation pit construction environment, and discloses an intelligent bidirectional traction dust falling curtain net driving mechanism for large-span foundation pit construction.
Background
In present foundation ditch construction engineering, especially city foundation ditch construction, there is the phenomenon of suspended particle dust pollution such as inside PM2.5 of foundation ditch, PM10, and after carrying out the construction of certain stage, the dust in the foundation ditch is raised and is got into the air, if not administering then can cause destruction to all ring edge borders, influence ambient air.
The existing method is to cover construction raw materials, prevent the construction raw materials from raising dust and entering air, and simultaneously, properly spray or spray to reduce dust on a construction site, so as to improve the treatment of construction environment.
In fact, however, the existing construction environment treatment measures need to consume a large amount of human resources, the covering treatment is one-time operation, and the subsequent raw material taking is influenced, so that the covering operation can be repeated for many times; not only increased intensity of labour, also can influence the efficiency of construction, reduced the construction progress.
Therefore, the existing foundation pit construction site environment improvement has a part to be improved urgently, the improvement mode is optimized, the consumption of human resources and the labor intensity are reduced, the construction efficiency is prevented from being influenced, and the construction progress is ensured. Therefore, a more reasonable technical scheme needs to be provided, and the defects in the prior art are overcome.
Disclosure of Invention
In order to solve the defects of the prior art mentioned in the above, the invention provides an intelligent bidirectional traction dust falling curtain net driving mechanism for large-span foundation pit construction, wherein the curtain net is arranged above the foundation pit, and the bidirectional traction driving mechanism is used as power to realize rapid shielding above the foundation pit, so that the convenience and fastness of treatment of the air environment in the construction process are improved, the dust falling efficiency is improved, and the labor intensity of workers on dust falling is reduced.
In order to achieve the purpose, the invention specifically adopts the technical scheme that:
an intelligent bidirectional traction dust falling curtain net driving mechanism for large-span foundation pit construction comprises a plurality of groups of supporting structures which are oppositely arranged on two sides of a foundation pit, wherein each group of supporting structures comprises a local side supporting unit and an opposite side supporting unit which are correspondingly matched; the protection system further comprises a bidirectional traction mechanism, the driving traction cable is a circulating cable connected end to end, and the driving traction cable comprises a bidirectional traction section which is parallel to the protection curtain and opposite in driving direction.
The driving mechanism is arranged at the position of the foundation pit, is applied to a protective curtain network system above the foundation pit, and realizes shielding or opening of the upper part of the foundation pit by drawing the protective curtain. Because the span of foundation ditch is big, adopt the scheme of pulling to the foundation ditch middle part simultaneously from the both sides of foundation ditch, not only can improve the efficiency of operation, also can avoid under the large-span condition, the problem that drive power is not enough of drive mechanism.
The invention sets a scheme of bidirectional traction, so that the protective curtains are extended and arranged at the positions of the protective units at the side and the opposite side to the middle part of the foundation pit simultaneously, or the protective curtains are recovered at the side and the opposite side simultaneously, the specific structure of the traction is optimized and the following feasible options are provided: one section of the bidirectional traction section is connected with and drives one of the protective curtains to extend, and the other section of the bidirectional traction section is connected with and drives the other protective curtain to extend. When the scheme is adopted, when the traction rope is driven to face one direction, the driving directions of the two sections in the bidirectional traction section are opposite, and the protective curtain is driven to extend and expand towards the middle part of the foundation pit; when the driving traction rope is driven reversely, the driving directions of the two ends in the bidirectional traction section are reversed, and the protective curtain is driven to be recovered towards the two sides of the foundation pit. The arrangement only needs to set one driving traction structure, the opening and closing of the protective curtains at two positions can be realized, the efficiency is improved, the components of the system are simplified, and the cost of the system is reduced.
Further, the two-way traction mechanism may adopt various possible schemes, which are not limited only, and is optimized and one of the possible options is as follows: the bidirectional traction mechanism comprises a driving part, and the driving part is connected with the output rotating shaft; the pulley block at least comprises two vertical guide wheels arranged on the side supporting unit, a horizontal reversing wheel arranged on the opposite side supporting unit and a driving wheel in transmission fit with the output rotating shaft, and the driving traction cable is wound among the driving wheel, the vertical guide wheels and the horizontal reversing wheel to form a circulating cable connected end to end. When the scheme is adopted, the driving traction rope is sequentially wound on the driving wheel, one vertical guide wheel, the horizontal reversing wheel, the other vertical guide wheel and the driving wheel to form an end-to-end circulating rope structure, the traction directions of the driving traction rope between the two vertical guide wheels and the horizontal steering wheel are opposite, and when the driving traction rope runs and drives, the movement directions of the two protective curtains are opposite, so that the protective curtains move oppositely or move in opposite directions.
Further, the connection mode of the output rotating shaft of the driving component and the direction traction cable can adopt various forms, which are not limited only, and the optimization is carried out here and one of the feasible options is shown: the output rotating shaft is arranged in parallel with the direction traction cable, and the driving wheel is sleeved on the output rotating shaft and rotates synchronously with the output rotating shaft. When the scheme is adopted, the driving part is simple in arrangement mode, and the driving structure is high in reliability.
Still further, the connection mode of the output rotating shaft and the direction traction cable is optimized and another feasible option is provided: the output rotating shaft and the direction traction cable are arranged in parallel, and straight gear set transmission, belt transmission or chain transmission is adopted between the output rotating shaft and the driving wheel. When adopting such scheme, can conveniently adjust the drive ratio according to the torque more, even motor power is also can drive the protection curtain smoothly and extend or retrieve to a little.
Still further, the connection mode of the output rotating shaft and the direction traction cable is optimized and another feasible option is provided: the output rotating shaft is perpendicular to the direction traction cable, and bevel gear group transmission or worm and gear transmission is adopted between the output rotating shaft and the driving wheel. When the scheme is adopted, the arrangement direction of the driving part can be adjusted, the protruding volume of the driving part arranged outside the supporting unit can be reduced, and the structural size of the whole system can be simplified.
Still further, here optimize the connection mode of output shaft and drive unit and show feasible selection among them: the output rotating shafts and the direction traction cable are arranged in parallel, and the output end of the driving part is connected with and drives the plurality of output rotating shafts. When the scheme is adopted, the protective curtains on the plurality of supporting units can be driven by one driving part, so that the simplification of the whole system structure is realized.
Compared with the prior art, the invention has the beneficial effects that:
the curtain net protection device adopts a bidirectional traction structure, can realize curtain net protection of a large-span foundation pit, not only reduces the strength requirement on a protection curtain, but also improves the efficiency of curtain net protection operation, realizes opening and closing of the curtain net protection through automatic and intelligent operation, and greatly facilitates the treatment of the construction environment at the foundation pit.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic top view of a screen protection system using the driving structure disclosed in the present invention.
Fig. 2 is a schematic view of a connection structure of a curtain, a driving traction rope and a direction traction rope of a curtain net protection system applying the driving structure disclosed by the invention.
Fig. 3 is a schematic composition diagram of a driving structure.
In the above drawings, the meaning of each symbol is: 1. a local side supporting unit; 2. an opposite-side supporting unit; 3. a protective curtain; 4. a cross bar; 5. a pulley; 6. driving a traction rope; 7. a drive member; 8. an output shaft; 9. a driving wheel; 10. a vertical guide wheel; 11. a horizontal reversing wheel; 12. and (4) a direction traction cable.
Detailed Description
The invention is further explained below with reference to the drawings and the specific embodiments.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Example 1
The embodiment discloses a screen driving mechanism, as shown in fig. 1 and 3, which specifically includes the following steps:
an intelligent bidirectional traction dust falling curtain net driving mechanism for large-span foundation pit construction comprises a plurality of groups of supporting structures which are oppositely arranged on two sides of a foundation pit, wherein each group of supporting structures comprises a local side supporting unit 1 and an opposite side supporting unit 2 which are correspondingly matched; the protection system further comprises a bidirectional traction mechanism, the driving traction cable 6 is a circulating cable connected end to end, and the driving traction cable 6 comprises a bidirectional traction section which is parallel to the protection curtain 3 and opposite in driving direction.
The driving mechanism is arranged at a foundation pit and applied to a protective screen system above the foundation pit, and the shielding or opening of the upper part of the foundation pit is realized by pulling the protective screen 3. Because the span of foundation ditch is big, adopt the scheme of pulling to the foundation ditch middle part simultaneously from the both sides of foundation ditch, not only can improve the efficiency of operation, also can avoid under the large-span condition, the problem that drive power is not enough of drive mechanism.
This embodiment sets up the scheme of two-way traction, makes this side and offside protective unit department extend to the foundation ditch middle part simultaneously and set up protection curtain 3, or retrieves protection curtain 3 to this side and offside simultaneously, and this place is optimized and is proposed following a feasible selection to towed concrete structure: one section in the bidirectional traction section is connected with and drives one protective curtain 3 to extend, and the other section in the bidirectional traction section is connected with and drives the other protective curtain 3 to extend. When the scheme is adopted, when the traction rope 6 is driven to face one direction, the driving directions of the two sections in the bidirectional traction section are opposite, and the protective curtain 3 is driven to extend and expand towards the middle part of the foundation pit; when the driving traction rope 6 is driven reversely, the driving directions of the two ends in the bidirectional traction section are reversed, and the protective curtain 3 is driven to be recovered towards the two sides of the foundation pit. The arrangement only needs to set one driving traction structure, the opening and closing of the protective curtains 3 at two positions can be realized, the efficiency is improved, the components of the system are simplified, and the cost of the system is reduced.
Preferably, the bidirectional traction mechanism may adopt various possible schemes, which are not limited only, and is optimized and one of the possible options is as follows: the bidirectional traction mechanism comprises a driving part 7, and the driving part 7 is connected with an output rotating shaft 8; the device is characterized by further comprising a pulley 5 group used for arranging a driving traction rope 6, wherein the pulley 5 group at least comprises two vertical guide wheels 10 arranged on the side supporting unit 1, a horizontal reversing wheel 11 arranged on the opposite side supporting unit 2 and a driving wheel 9 in transmission fit with the output rotating shaft 8, and the driving traction rope 6 is wound among the driving wheel 9, the vertical guide wheels 10 and the horizontal reversing wheel 11 to form a head-to-tail circulating rope. When the scheme is adopted, the driving traction ropes 6 are sequentially wound on the driving wheel 9, one vertical guide wheel 10, the horizontal reversing wheel 11, the other vertical guide wheel 10 and the driving wheel 9 to form an end-to-end circulating rope structure, the traction directions of the driving traction ropes 6 between the two vertical guide wheels 10 and the horizontal reversing wheel are opposite, and when the driving traction ropes 6 are driven to run, the movement directions of the two protective curtains 3 are opposite, so that the opposite movement or the opposite movement of the protective curtains 3 is realized.
Preferably, the connection between the output shaft 8 of the driving member 7 and the directional traction cable 12 can take various forms, which are not limited only, and is optimized here and one of the possible options is: the output rotating shaft 8 is arranged in parallel with the direction traction cable 12, and the driving wheel 9 is sleeved on the output rotating shaft 8 and rotates synchronously with the output rotating shaft 8. When the scheme is adopted, the arrangement mode of the driving part 7 is simple, and the driving structure is high in reliability.
In this embodiment, the driving member 7 is an electrodeless motor.
In other embodiments, the connection mode of the output rotating shaft 8 and the direction traction cable 12 can be other schemes, which are optimized and represent another feasible option: the output rotating shaft 8 is arranged in parallel with the direction traction cable 12, and straight gear set transmission, belt transmission or chain transmission is adopted between the output rotating shaft 8 and the driving wheel 9. When adopting such scheme, can be more conveniently according to torque adjustment drive ratio, even motor power is also can drive protection curtain 3 smoothly and extend or retrieve less than normal.
In other embodiments, the connection mode of the output rotating shaft 8 and the direction traction cable 12 can be other schemes, which are optimized and represent another feasible option: the output rotating shaft 8 is perpendicular to the direction traction cable 12, and bevel gear group transmission or worm and gear transmission is adopted between the output rotating shaft 8 and the driving wheel 9. When the scheme is adopted, the arrangement direction of the driving part 7 can be adjusted, the protruding volume of the driving part 7 arranged outside the supporting unit can be reduced, and the structural size of the whole system can be simplified.
Preferably, the connection between the output shaft 8 and the drive member 7 is optimized and possible options are: the output rotating shafts 8 and the direction traction ropes 12 are arranged in parallel, and the output end of the driving part 7 is connected with and drives a plurality of output rotating shafts 8. When the scheme is adopted, the protective curtains 3 on a plurality of supporting units can be driven by one driving part 7, so that the simplification of the whole system structure is realized.
Example 2
To there being the top protective structure to current foundation ditch construction and need artifically set up, it is big to consume manpower resources, and inefficiency, with high costs the condition, and the problem in order to solve prior art is optimized to this embodiment.
Specifically, as shown in fig. 1 and 2, the embodiment discloses an intelligent bidirectional traction dust fall curtain network system for large-span foundation pit construction, which comprises a plurality of groups of supporting structures arranged on two sides of a foundation pit relatively, wherein each group of supporting structures comprises a local side supporting unit 1 and an opposite side supporting unit 2 which are correspondingly matched; a direction traction cable 12 is arranged between the side supporting unit 1 and the opposite side supporting unit 2, and at least one protective curtain 3 extending from the side supporting unit 1 to the middle part of the foundation pit and one protective curtain 3 extending from the opposite side supporting unit 2 to the middle part of the foundation pit are arranged on the direction traction cable 12; the protection system further comprises a bidirectional traction mechanism, the bidirectional traction mechanism comprises a driving traction rope 6 which is connected with the protection curtain 3 and matched with the driving traction rope 6, and the driving traction rope 6 can simultaneously pull the protection curtain 3 to the middle of the foundation pit or simultaneously pull the protection curtain 3 to the edge of the foundation pit.
Above-mentioned public curtain net protection system sets up in foundation ditch department, because the span of foundation ditch is big, adopts the both sides from the foundation ditch to draw the scheme of protection curtain 3 in the middle part of the foundation ditch simultaneously, not only can improve the efficiency of operation, also can avoid under the large-span condition, the problem of damage is dragged to 3 not enough of protection curtains intensity.
Preferably, the local side supporting unit 1 and the opposite side supporting unit 2 both adopt a steel bar upright frame structure, are fastened through construction operations such as embedding and pouring, and provide stable and reliable supporting stress points through the local side supporting unit 1 and the opposite side supporting unit 2.
The directional traction rope 12 is arranged in the embodiment to draw the protective curtain 3 along a designated direction, and when the protective curtains 3 on two sides extend to a designated position towards the middle, the direction is just aligned, and the whole protective structure is spliced integrally. Specifically, the arrangement of the directional traction cable 12 is not limited, and is optimized and one of the possible options is: the number of the direction traction ropes 12 is at least two, and the direction traction ropes 12 are parallel; the protective curtain 3 is provided with a plurality of cross rods 4 at intervals along the length extension direction, and the two ends of each cross rod 4 are matched with the direction traction ropes 12 in a sliding or rolling manner. When the scheme is adopted, the cross rod 4 is erected on the directional traction rope 12, and the width of the protective curtain 3 after extension and expansion is basically kept consistent; simultaneously, the interval sets up horizontal pole 4 and can reduce the flagging in the middle of the protection curtain 3, makes the pulling force on the protection curtain 3 obtain decomposing, avoids the pulling force that the large-span leads to damage protection curtain 3.
In order to more smoothly extend and retract the protective curtain 3 and optimize the structure of the traction connection part on the directional traction rope 12, the following feasible options are adopted in the embodiment: the direction traction cable 12 is provided with a pulley 5, the wheel part of the pulley 5 rolls along the direction traction cable 12, and a hook is arranged below the pulley 5 and is connected and matched with the cross rod 4. When the scheme is adopted, the pulley 5 slides along the direction traction rope 12, so that the transverse rod 4 and the protective curtain 3 are driven to move forwards or retreat, and the protective curtain 3 can be smoothly unfolded or recovered.
This embodiment sets up the scheme of two-way traction, makes this side and offside protective unit department extend to the foundation ditch middle part simultaneously and set up protection curtain 3, or retrieves protection curtain 3 to this side and offside simultaneously, and this place is optimized and is proposed following a feasible selection to towed concrete structure: the driving traction rope 6 is a circulating rope connected end to end, the driving traction rope 6 comprises two-way traction sections which are parallel to the protective curtains 3 and have opposite driving directions, one section of each two-way traction section is connected with and drives one protective curtain 3 to extend, and the other section of each two-way traction section is connected with and drives the other protective curtain 3 to extend. When the scheme is adopted, when the traction rope 6 is driven to face one direction, the driving directions of the two sections in the bidirectional traction section are opposite, and the protective curtain 3 is driven to extend and expand towards the middle part of the foundation pit; when the driving traction rope 6 is driven reversely, the driving directions of the two ends in the bidirectional traction section are reversed, and the protective curtain 3 is driven to be recovered towards the two sides of the foundation pit. The arrangement only needs to set one driving traction structure, the opening and closing of the protective curtains 3 at two positions can be realized, the efficiency is improved, the components of the system are simplified, and the cost of the system is reduced.
Preferably, the driving traction rope 6 and the protective curtain 3 can be connected and driven by various connection methods, and the embodiment is optimized and adopts one of the feasible options: the driving traction rope 6 is fixedly connected with the first cross rod 4 at the front end of the protective curtain 3. When the scheme is adopted, other cross rods 4 connected with the protective curtain 3 are movably connected with the direction traction ropes 12 and are matched with the pulleys 5 without being connected with the driving traction ropes 6. As shown in fig. 1, the positions marked with the traction arrows in the drawing indicate that the pulley 5 is fixedly connected with the driving traction cable 6, and the positions not marked with the traction arrows indicate connection, thereby avoiding movement interference.
The two-way traction mechanism can adopt various possible schemes, which are not limited only, and the embodiment is optimized and adopts one of the possible options: as shown in fig. 3, the bidirectional traction mechanism includes a driving part 7, the driving part 7 is connected with an output rotating shaft 8; the traction rope driving device is characterized by further comprising a pulley block for arranging a driving traction rope 6, wherein the pulley block at least comprises two vertical guide wheels 10 arranged on the supporting unit 1 at the side, a horizontal reversing wheel 11 arranged on the supporting unit 2 at the opposite side and a driving wheel 9 in transmission fit with the output rotating shaft 8, and the driving traction rope 6 is wound among the driving wheel 9, the vertical guide wheels 10 and the horizontal reversing wheel 11 to form a circulating rope connected end to end. When the scheme is adopted, the driving traction ropes 6 are sequentially wound on the driving wheel 9, one vertical guide wheel 10, the horizontal reversing wheel 11, the other vertical guide wheel 10 and the driving wheel 9 to form an end-to-end circulating rope structure, the traction directions of the driving traction ropes 6 between the two vertical guide wheels 10 and the horizontal reversing wheel are opposite, and when the driving traction ropes 6 are driven to run, the movement directions of the two protective curtains 3 are opposite, so that the opposite movement or the opposite movement of the protective curtains 3 is realized.
The connection between the output shaft 8 of the driving member 7 and the directional traction cable 12 can take various forms, which are not limited only, and the present embodiment is optimized and adopts one of the feasible options: the output rotating shaft 8 is arranged in parallel with the direction traction cable 12, and the driving wheel 9 is sleeved on the output rotating shaft 8 and rotates synchronously with the output rotating shaft 8. When the scheme is adopted, the arrangement mode of the driving part 7 is simple, and the driving structure is high in reliability.
In other embodiments, the connection of the output shaft 8 to the directional traction cable 12 can be optimized and another feasible option can be adopted: the output rotating shaft 8 is arranged in parallel with the direction traction cable 12, and straight gear set transmission, belt transmission or chain transmission is adopted between the output rotating shaft 8 and the driving wheel 9. When adopting such scheme, can be more conveniently according to torque adjustment drive ratio, even motor power is also can drive protection curtain 3 smoothly and extend or retrieve less than normal.
In other embodiments, the connection between the output shaft 8 and the directional traction cable 12 can be optimized and another possible option is: the output rotating shaft 8 is perpendicular to the direction traction cable 12, and bevel gear group transmission or worm and gear transmission is adopted between the output rotating shaft 8 and the driving wheel 9. When the scheme is adopted, the arrangement direction of the driving part 7 can be adjusted, the protruding volume of the driving part 7 arranged outside the supporting unit can be reduced, and the structural size of the whole system can be simplified.
Preferably, the present embodiment optimizes the connection mode between the output rotating shaft 8 and the driving part 7 and provides feasible options: the output rotating shafts 8 and the direction traction ropes 12 are arranged in parallel, and the output end of the driving part 7 is connected with and drives a plurality of output rotating shafts 8. When the scheme is adopted, the protective curtains 3 on a plurality of supporting units can be driven by one driving part 7, so that the simplification of the whole system structure is realized. For example, a double-output motor can be adopted to simultaneously drive two output rotating shafts 8 to rotate so as to drive the protective curtains 3 on two supporting structures to be unfolded or recovered; a single drive unit 7 may also be used to drive the deployment or retrieval of the protective curtain 3 from a supporting structure.
Preferably, a motor is used as the driving member 7 in the present embodiment.
Still combine protection curtain 3 to extend to expand the inside daylighting condition of back influence foundation ditch in this embodiment, carry out automatic illumination light filling to the foundation ditch inside, specifically optimize and lift one of them feasible selection: the protection system further comprises an illumination system, and the illumination system comprises a plurality of illumination sensors and illumination lamps. When the scheme is adopted, the illuminance in the foundation pit is sensed through the illuminance sensor, and when the illuminance is detected to be lower than a preset threshold value, the illuminating lamp is started to perform light supplementing illumination.
When the content of dust particles in the foundation pit exceeds a threshold value, active dust fall treatment is required, and the protection system is optimized and one feasible choice is provided as follows: the protection system also comprises a spraying system, and the spraying system comprises a plurality of dust sensors and a spraying assembly. When the scheme is adopted, the dust condition in the foundation pit is monitored in real time through the dust sensor, and the spraying system is started after the dust condition exceeds a threshold value, so that active dust falling treatment is carried out in the foundation pit.
The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the claims, and the description should be used for interpreting the claims.
Claims (6)
1. The utility model provides a two-way dust curtain net actuating mechanism that falls that pulls of large-span foundation ditch construction intelligence which characterized in that: the device comprises a plurality of groups of supporting structures which are oppositely arranged on two sides of a foundation pit, wherein each group of supporting structures comprises a local side supporting unit (1) and an opposite side supporting unit (2) which are correspondingly matched; a direction traction cable (12) is arranged between the side supporting unit (1) and the opposite side supporting unit (2); the protection system further comprises a bidirectional traction mechanism, the bidirectional traction mechanism comprises a driving traction cable (6), the driving traction cable (6) is a circulating cable connected end to end, and the driving traction cable (6) comprises bidirectional traction sections with opposite driving directions.
2. The intelligent bidirectional traction dust falling curtain net driving mechanism for the large-span foundation pit construction according to claim 1, is characterized in that: the bidirectional traction mechanism comprises a driving part (7), and the driving part (7) is connected with an output rotating shaft (8); still including pulley (5) group that is used for setting up drive haulage cable (6), pulley (5) group at least including setting up two vertical leading wheels (10) on this side support unit (1), and set up one horizontal reversing wheel (11) on offside support unit (2), and with output pivot (8) transmission fit's action wheel (9), drive haulage cable (6) are around establishing and forming end to end's endless circulating cable between action wheel (9), vertical leading wheel (10) and horizontal reversing wheel (11).
3. The intelligent bidirectional traction dust falling curtain net driving mechanism for the large-span foundation pit construction according to claim 2, is characterized in that: the output rotating shaft (8) is arranged in parallel with the direction traction cable (12), and the driving wheel (9) is sleeved on the output rotating shaft (8) and rotates synchronously with the output rotating shaft (8).
4. The intelligent bidirectional traction dust falling curtain net driving mechanism for the large-span foundation pit construction according to claim 2 or 3, characterized in that: the output rotating shafts (8) and the direction traction cable (12) are arranged in parallel, and the output end of the driving part (7) is connected with and drives the plurality of output rotating shafts (8).
5. The intelligent bidirectional traction dust falling curtain net driving mechanism for the large-span foundation pit construction according to claim 2 or 3, characterized in that: the output rotating shaft and the direction traction cable are arranged in parallel, and straight gear set transmission, belt transmission or chain transmission is adopted between the output rotating shaft and the driving wheel.
6. The intelligent bidirectional traction dust falling curtain net driving mechanism for the large-span foundation pit construction according to claim 2 or 3, characterized in that: the output rotating shaft is perpendicular to the direction traction cable, and bevel gear group transmission or worm and gear transmission is adopted between the output rotating shaft and the driving wheel.
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| CN202110656412.0A CN113263038B (en) | 2021-06-11 | 2021-06-11 | Intelligent bidirectional traction dust fall curtain net driving mechanism for large-span foundation pit construction |
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| CN202110656412.0A CN113263038B (en) | 2021-06-11 | 2021-06-11 | Intelligent bidirectional traction dust fall curtain net driving mechanism for large-span foundation pit construction |
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