Deep horizontal displacement measuring device of deep foundation pit of subway station
Technical Field
The invention belongs to the field of foundation pit monitoring, and particularly relates to a deep foundation pit horizontal displacement measuring device for a subway station.
Background
With the increasingly strong development of China, China enters the rapid development period of underground space construction, along with the gradual increase of high-rise buildings and subways, a large number of deep foundation pit projects and foundation measurement projects are continuously emerged, and due to the fact that the construction difficulty of deep foundation pits is high and the risk is high, the stress state and the deformation of a foundation pit supporting structure are monitored in real time in the deep foundation pit construction process, the stability of each working condition in the foundation pit is mastered, changes caused by subsequent excavation are predicted, and the construction scheme is adjusted in time. The monitoring of the horizontal displacement of the deep foundation pit is a reliable basis for analyzing the stability of the deep foundation pit, the accuracy of the measuring result is the guarantee of checking the construction quality and controlling the construction progress, the monitoring of the horizontal displacement of the deep foundation pit is realized by firstly adopting an engineering drilling machine to drill at a preset position, adding an inclinometer into a drill hole, then placing an inclinometer probe into the inclinometer, and obtaining the horizontal displacement through the inclinometer probe.
Current inclinometer is after the measurement is accomplished, generally all need retrieve the inclinometer probe to the ground surface from inclinometer pipe is inside, because can meet the drilling at the in-process of retrieving and cause the guide pulley at inclinometer pipe inner wall arch card inclinometer both ends because of the construction warp, change control cable's pulling force, tear off the connection between inclinometer and the reading appearance, lead to the unable normal recovery of inclinometer, the inclinometer card is inside drilling, lead to unable subsequent horizontal displacement monitoring of carrying on.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a deep foundation pit horizontal displacement device of a subway station, which can realize that a guide wheel avoids obstacles by rotating an inclinometer in the process of recovery, thereby keeping normal recovery.
In order to solve the technical problem, the invention is solved by the following technical scheme: a deep foundation pit deep horizontal displacement device of a subway station comprises an inclinometer and a main body, wherein the main body comprises an inclinometer and a control cable, the control cable is provided with a tension detection mechanism, the tension detection mechanism can detect the tension of the control cable, the inclinometer is connected with the control cable through a waterproof aerial plug, the other end of the inclinometer is provided with an inclinometer probe, the other end of the control cable is connected with an inclinometer reading instrument, a servo motor and a control device are arranged in the inclinometer, the servo motor is connected with a first chain wheel and a second chain wheel through a first shaft, a third chain wheel is arranged above the first chain wheel in a chain connection mode, a second shaft is arranged on the third chain wheel, a first bevel gear and a second bevel gear are arranged at two ends of the second shaft, the first bevel gear is matched with the upper end of the first bevel gear and provided with a third bevel gear through transmission, the third bevel gear is provided with a first guide wheel and is relatively fixed, the transmission and fixing mode can be gear set matching or chain and chain wheel matching, the second bevel gear is provided with a fourth bevel gear at the lower end in matching, the fourth bevel gear is provided with a second guide wheel through transmission and is relatively fixed, the transmission mode can be gear set matching or chain and chain wheel matching, the fourth chain wheel is connected and provided with a fourth chain wheel below the second chain wheel, the fourth chain wheel is provided with a third shaft, the two ends of the third shaft are provided with a fifth bevel gear and a sixth bevel gear, the upper end of the fifth bevel gear is provided with a seventh bevel gear in matching, the seventh bevel gear is provided with a third guide wheel through transmission and is relatively fixed, the transmission mode can be gear set matching or chain and chain wheel matching, the lower end of the sixth bevel gear is provided with an eighth bevel gear in matching, the eighth bevel gear is provided with a fourth guide wheel through transmission and is relatively fixed, the transmission mode can be a gear set matching mode or a chain and chain wheel matching mode, the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel are in contact with the inclinometer tube, the direction of the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel can only rotate 90 degrees once changing, the design can be realized by arranging a limiting column to block and arranging a limiting sliding groove which can only rotate 90 degrees, when one guide wheel in the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel is blocked by an obstacle, the tension detection mechanism detects that the tension of a control cable is abnormal, the control device controls the servo motor to rotate, the servo motor drives a first shaft to rotate, the first shaft drives the first chain wheel and the second chain wheel to rotate, and the first chain wheel and the second chain wheel which belong respectively drive the third chain wheel and the fourth chain wheel, the third chain wheel and the fourth chain wheel respectively drive the second shaft and the third shaft to rotate, the second shaft drives the first bevel gear and the second bevel gear to rotate, the first bevel gear and the second quasi-gear respectively drive the third bevel gear and the fourth bevel gear to rotate in the same direction, the third bevel gear and the fourth bevel gear respectively drive the first guide wheel and the second guide wheel to change the direction, the first guide wheel and the second guide wheel stop changing the direction after changing the direction by 90 degrees and start rotating to drive the inclinometer to rotate integrally, the third shaft drives the fifth bevel gear and the sixth bevel gear to rotate, the fifth bevel gear and the sixth bevel gear drive the seventh bevel gear and the eighth bevel gear to rotate in the same direction, and the seventh bevel gear and the eighth bevel gear respectively drive the third guide wheel and the fourth guide wheel to change the direction, after the direction of the third guide wheel and the direction of the fourth guide wheel are changed by 90 degrees, the third guide wheel and the fourth guide wheel stop changing directions and start rotating to drive the whole inclinometer to rotate, after the inclinometer avoids an obstacle, the control device controls the servo motor to rotate reversely, the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel return to a lifting state, finally the guide wheel is rotated to avoid the obstacle, and therefore the normal recovery of the inclinometer is kept.
Among the above-mentioned technical scheme, preferably, inclinometer probe bottom is equipped with the blotter, even being equipped with the through-hole on the blotter, the blotter is in can protect the inclinometer probe not receive too big injury when the inclinometer is transferred.
In the above technical solution, preferably, two sides of the inclinometer perpendicular to the first shaft are provided with scrapers, the highest position of each scraper is higher than the first guide wheel and the second guide wheel, the lowest position of each scraper is lower than the third guide wheel and the fourth guide wheel, the scraper can scrape an obstacle blocking the inclinometer from rising, the scraper is deviated from the side of the inclinometer and is connected with a rack, two ends of the rack are planes without gear teeth, the scraper can stop the rack from stretching in a way that the gear teeth are not matched after the direction of the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel is changed, the rack is connected with a fifth gear, the fifth gear is connected with the first shaft and driven by the first shaft, the rack is connected with the inclinometer in a sliding manner, and the sliding connection can be realized by establishing a sliding chute and a sliding rail, the other end of the rack is connected with a spring, the spring is connected with the inclinometer, when the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel change directions, the first shaft drives the fifth gear to rotate, the fifth gear drives the rack to extend, the rack drives the scraper to extend, when the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel change directions, the scraper is displaced to a position in contact with the inclinometer pipe, a plane of the rack without gear teeth is not matched with the fifth gear, so that the displacement is stopped, the scraper scrapes obstacles by using the rotation of the inclinometer, and when the direction of the inclinometer is changed by the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel, the rack is matched with the gear teeth of the fifth gear again due to the tension of the spring, the servo motor is turned, the first shaft drives the fifth gear to rotate in the opposite direction, the fifth gear drives the rack to retract, the rack drives the scraper to retract, when the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel change the self direction again, the scraper is shifted to a recovery position, a plane of the rack without gear teeth is not matched with the fifth gear, so that the shifting is stopped, when the scraper needs to extend next time, the elastic rack of the spring is matched with the gear teeth of the fifth gear again, and the better recovery inclinometer is realized by scraping the obstacle when the guide wheel meets the obstacle.
In the above technical scheme, preferably, limiting plates are arranged at two ends of the rack, and the movable range of the rack is limited by the cooperation between the limiting plates and the sliding connection.
In the above technical solution, preferably, the tension detecting mechanism is a tension tester.
In the above technical solution, preferably, sliding bearings are arranged between the first shaft, the second shaft, and the third shaft and the inclinometer, so that friction is reduced, and the first shaft, the second shaft, and the third shaft are protected.
In the above technical solution, preferably, the third bevel gear is provided with a first guide wheel through transmission and is relatively fixed, the transmission connection manner may be that the third bevel gear is connected with a fourth shaft, the fourth shaft is connected with a ninth gear, the ninth gear is provided with a tenth gear biased to the inclinometer tube side, the tenth gear is connected with a fifth shaft, the fifth shaft is connected with the first guide wheel, the fourth shaft and the fifth shaft are both fixed on the first housing through a bushing, the fourth bevel gear is provided with a second guide wheel through transmission and is relatively fixed, the transmission connection manner may be that the fourth bevel gear is connected with a sixth shaft, the sixth shaft is connected with an eleventh gear, the eleventh gear is provided with a twelfth gear biased to the inclinometer tube side, the twelfth gear is connected with a seventh shaft, the seventh shaft is connected with the second guide wheel, and the sixth shaft and the seventh shaft are both fixed on the second housing through bushings, the seventh bevel gear is provided with a third guide wheel through transmission and is relatively fixed, the transmission connection mode can be that an eighth shaft is connected with the seventh bevel gear through the transmission, the eighth shaft is connected with a thirteenth gear, the thirteenth gear is provided with a fourteenth gear deviated to the inclinometer pipe side, the fourteenth gear is connected with a ninth shaft, the ninth shaft is connected with the third guide wheel, the eighth shaft and the ninth shaft are both fixed on a third shell through a shaft sleeve, the eighth bevel gear is provided with a fourth guide wheel through transmission and is relatively fixed, the transmission connection mode can be that the eighth bevel gear is connected with a tenth shaft, the tenth shaft is connected with a fifteenth gear, the fifteenth gear is provided with a sixteenth gear deviated to the inclinometer pipe side, the sixteenth gear is connected with a tenth shaft, the eleventh shaft is connected with the fourth guide wheel, and the tenth shaft are both fixed on the fourth shell through a shaft sleeve, the limiting column limits the rotation direction of the first shell, the second shell, the third shell and the fourth shell, and the limiting mode can be realized by blocking the first shell, the second shell, the third shell and the fourth shell by the limiting column after the first shell, the second shell, the third shell and the fourth shell rotate for 90 degrees and then preventing the first shell, the second shell, the third shell and the fourth shell from rotating.
Compared with the prior art, the invention has the following beneficial effects: 1. the deep foundation pit horizontal displacement device of the subway station can realize that the guide wheel avoids the barrier by rotating the inclinometer in the process of recovery, thereby keeping normal recovery.
2. The invention realizes better recovery of the inclinometer by scraping the obstacle when the guide wheel meets the obstacle by arranging the scraper, the rack and the spring structure.
3. The four guide wheels and the scraper are driven by the servo motor simultaneously, so that multiple functions of one servo motor are realized.
Drawings
Fig. 1 is a schematic structural diagram in normal recovery in the embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the embodiment of the present invention when the direction is changed.
Fig. 3 is a schematic top view of the main body according to the embodiment of the present invention.
Fig. 4 is a schematic cross-sectional structure diagram of the main body in the embodiment of the present invention.
FIG. 5 is a schematic cross-sectional view at A in the embodiment of the present invention.
Fig. 6 is a schematic cross-sectional view of the second state at position a in the embodiment of the present invention.
Fig. 7 is a schematic side view of a normal orientation in an embodiment of the invention.
Fig. 8 is a schematic side view of the embodiment of the invention in normal recovery.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 8, a deep foundation pit deep horizontal displacement device of a subway station comprises an inclinometer 1 and a main body 2, wherein the main body 2 comprises an inclinometer 3 and a control cable 4, the control cable 4 is provided with a tension detection mechanism 5, the tension detection mechanism 5 can detect the tension of the control cable 4, the inclinometer 3 is connected with the control cable 4 through a waterproof aerial plug 6, the other end of the inclinometer 3 is provided with an inclinometer probe 8, the other end of the control cable 4 is connected with an inclinometer reader 7, the inclinometer 3 is internally provided with a servo motor 9 and a control device 10, the servo motor 9 is connected with a first chain wheel 12 and a second chain wheel 13 through a first shaft 11, the upper part of the first chain wheel 12 is connected with a third chain wheel 14 through a chain, the third chain wheel 14 is provided with a second shaft 15, the two ends of the second shaft 15 are provided with a first bevel gear 16 and a second bevel gear 17, the upper end of the first bevel gear 16 is provided with a third bevel gear 18 in a matching way, the third bevel gear 18 is provided with a first guide wheel 19 through transmission and is relatively fixed, the transmission and fixing modes can be that two shafts are respectively connected with a shaft, the two shafts are mutually matched and transmitted through gear connection, and are fixed on the same object, or can be that the two shafts are respectively connected with a shaft, the two shafts are mutually matched and transmitted through chain wheels and chains, and are fixed on the same object, the lower end of the second bevel gear 17 is provided with a fourth bevel gear 20 in a matching way, the fourth bevel gear 20 is provided with a second guide wheel 21 through transmission and is relatively fixed, the transmission and fixing modes can be that the two shafts are respectively connected with a shaft, the two shafts are mutually matched and transmitted through gear connection, and are fixed on the same object, or can be that the two shafts are respectively connected with a shaft, the two shafts are mutually matched and transmitted through chain wheels and chains, and are fixed on the same object, the chain below the second chain wheel 13 is connected with a fourth chain wheel 22, a third shaft 23 is arranged on the fourth chain wheel 22, a fifth bevel gear 24 and a sixth bevel gear 25 are arranged at two ends of the third shaft 23, the fifth bevel gear 24 is provided with a seventh bevel gear 26 at the upper end in a matching way, the seventh bevel gear 26 is provided with a third guide wheel 27 through transmission and is relatively fixed, the transmission and fixing way can be that the fifth bevel gear 24 is respectively connected with a shaft, the two shafts are mutually matched and transmitted through gear connection, and are fixed on the same object, the sixth bevel gear 25 is provided with an eighth bevel gear 28 at the lower end in a matching way, the eighth bevel gear 28 is provided with a fourth guide wheel 29 through transmission and is relatively fixed, the transmission and fixing way can be that the fifth bevel gear 24 and the sixth bevel gear 25 are respectively connected with a shaft, the two shafts are mutually matched and transmitted through gear connection, are fixed on the same object, and can be that the fifth bevel gear 24 and the sixth bevel gear 25 are respectively connected with a shaft, the two shafts are mutually matched and driven through chain wheels and chains, the two shafts are fixed on the same object, the first guide wheel 19, the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 are in contact with the inclinometer tube 1, the direction of the first guide wheel 19, the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 is changed once and can only rotate 90 degrees, the design can be realized by arranging a limit column 62 for blocking and arranging a limit sliding chute 3838 which can only rotate 90 degrees, when one guide wheel in the first guide wheel 19, the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 is blocked by a barrier, the tension detection mechanism 5 detects that the tension of the control cable 4 is abnormal, the control device 10 controls the servo motor 9 to rotate, the servo motor 9 drives the first shaft 11 to rotate, the first shaft 11 drives the first chain wheel 12 and the second chain wheel 13 to rotate, the first chain wheel 12 and the second chain wheel 13 respectively drive the third chain wheel 14 and the fourth chain wheel 22, the third sprocket 14 and the fourth sprocket 22 respectively drive the second shaft 15 and the third shaft 23 to rotate, the second shaft 15 drives the first bevel gear 16 and the second bevel gear 17 to rotate, the first bevel gear 16 and the second quasi-gear respectively drive the third bevel gear 18 and the fourth bevel gear 20 to rotate in the same direction, the third bevel gear 18 and the fourth bevel gear 20 respectively drive the first guide wheel 19 and the second guide wheel 21 to change their directions, the first guide wheel 19 and the second guide wheel 21 change their directions by 90 degrees and stop changing their directions and start rotating, the inclinometer 3 is driven to rotate integrally, the third shaft 23 drives the fifth bevel gear 24 and the sixth bevel gear 25 to rotate, the fifth bevel gear 24 and the sixth bevel gear 25 drive the seventh bevel gear 26 and the eighth bevel gear 28 to rotate in the same direction, the seventh bevel gear 26 and the eighth bevel gear 28 respectively drive the third guide wheel 27 and the fourth guide wheel 29 to change their directions, the third guide wheel 27 and the fourth guide wheel 29 stop changing their directions and start rotating after changing their directions by 90 degrees, the inclinometer 3 is driven to rotate integrally, after the inclinometer 3 avoids the obstacle, the control device 10 controls the servo motor 9 to rotate reversely, so that the first guide wheel 19, the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 return to a rising state, and finally the guide wheels are rotated to avoid the obstacle, so that the inclinometer 3 is kept normally recovered.
In this embodiment, the inclinometer probe 8 bottom is equipped with blotter 30, and even being equipped with through-hole 31 on the blotter 30, blotter 30 can protect inclinometer probe 8 not to receive too big injury when inclinometer 3 transfers.
In this embodiment, two sides of the inclinometer 3 perpendicular to the first shaft 11 are provided with scrapers 32, the highest position of each scraper 32 is higher than the first guide wheel 19 and the second guide wheel 21, the lowest position of each scraper 32 is lower than the third guide wheel 27 and the fourth guide wheel 29, the design can realize that the scrapers 32 scrape obstacles blocking the inclinometer 3 from rising, the scrapers 32 are connected with racks 33 deviated from the inclinometer 3, two ends of each rack 33 are planes 39 without gear teeth, the design can stop the expansion and contraction of the racks 33 in a way that the gear teeth are not matched directly after the first guide wheel 19, the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 change directions, the racks 33 are connected with fifth gears 35, the fifth gears 35 are connected with the first shaft 11 and driven by the first shaft 11, the racks 33 are connected with the inclinometer 3 in a sliding mode through sliding chutes 38, the other ends of the racks 33 are connected with springs 36, the springs 36 are connected with the inclinometer 3, and the first guide wheels 19, the second guide wheels 21 and the third guide wheels are connected with the inclinometer 3, When the directions of the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 are changed, the first shaft 11 drives the fifth gear 35 to rotate, the fifth gear 35 drives the rack 33 to extend, the rack 33 drives the scraper 32 to extend, when the directions of the first guide wheel 19, the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 are changed, the scraper 32 is displaced to a position contacting with the inclinometer tube 1, the plane 39 without gear teeth of the rack 33 is not matched with the fifth gear 35, so that the displacement is stopped, the scraper 32 scrapes obstacles by using the rotation of the inclinometer 3, when the directions of the first guide wheel 19, the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 are changed, the rack 33 is matched with the gear teeth of the fifth gear 35 again due to the pulling force of the spring 36, the servo motor 9 is turned over, the first shaft 11 drives the fifth gear 35 to rotate reversely, the fifth gear 35 drives the rack 33 to retract, the rack 33 drives the scraper 32 to retract, when the first guide wheel 19, the second guide wheel 21, the third guide wheel 27 and the fourth guide wheel 29 change the direction of the scraper 32 again, the scraper 32 moves to a retraction position, and the plane 3934 without gear teeth of the rack 33 is not matched with the fifth gear 35, so that the displacement is stopped, when the scraper needs to extend next time, the elastic rack 33 of the spring 36 is matched with the gear teeth of the fifth gear 35 again, and the better retraction of the inclinometer 3 is realized by scraping the obstacle when the guide wheels encounter the obstacle.
In this embodiment, the two ends of the rack 33 are provided with the limiting plates 37, and the cooperation of the limiting plates 37 and the sliding grooves 3838 limits the moving range of the rack 33.
In this embodiment, the tension detecting mechanism 5 is a tension tester 41.
In this embodiment, the sliding bearings 40 are arranged between the first shaft 11, the second shaft 15 and the third shaft 23 and the inclinometer 3, so that friction is reduced, and the first shaft 11, the second shaft 15 and the third shaft 23 are protected.
In this embodiment, the third bevel gear 18 is provided with the first guide wheel 19 through transmission and is relatively fixed, the transmission connection mode may be that the third bevel gear 18 is connected with the fourth shaft 42, the fourth shaft 42 is connected with the ninth gear 43, the ninth gear 43 is provided with the tenth gear 44 biased to the inclinometer 1 side, the tenth gear 44 is connected with the fifth shaft 45, the fifth shaft 45 is connected with the first guide wheel 19, the fourth shaft 42 and the fifth shaft 45 are both fixed on the first housing 46 through bushings, the fourth bevel gear 20 is provided with the second guide wheel 21 through transmission and is relatively fixed, the transmission connection mode may be that the fourth bevel gear 20 is connected with the sixth shaft 47, the sixth shaft 47 is connected with the eleventh gear 48, the eleventh gear 48 is provided with the twelfth gear 49 biased to the inclinometer 1 side, the twelfth gear 49 is connected with the seventh shaft 50, the seventh shaft 50 is connected with the second guide wheel 21, the sixth shaft 47 and the seventh shaft 50 are both fixed on the second housing 51 through bushings, the seventh bevel gear 26 is provided with a third guide wheel 27 through transmission and is relatively fixed, the transmission connection mode can be that the seventh bevel gear 26 is connected with an eighth shaft 52, the eighth shaft 52 is connected with a thirteenth gear 53, the thirteenth gear 53 is provided with a fourteenth gear 54 deviated from the inclinometer 1 side, the fourteenth gear 54 is connected with a ninth shaft 55, the ninth shaft 55 is connected with the third guide wheel 27, the eighth shaft 52 and the ninth shaft 55 are both fixed on a third shell 57 through a shaft sleeve, the eighth bevel gear 28 is provided with a fourth guide wheel 29 through transmission and is relatively fixed, the transmission connection mode can be that the eighth bevel gear 28 is connected with a tenth shaft 56, the tenth shaft 56 is connected with a fifteenth gear 58, the fifteenth gear 58 is provided with a sixteenth gear 59 deviated from the inclinometer 1 side, the sixteenth gear 59 is connected with an eleventh shaft 60, the tenth shaft 60 is connected with the fourth guide wheel 29, the tenth shaft 56 and the tenth shaft 60 are both fixed on a fourth shell 61 through shaft sleeves, the limiting column 62 limits the rotation direction of the first shell 46, the second shell 51, the third shell 57 and the fourth shell 61, and the limiting mode is that the first shell 46, the second shell 51, the third shell 57 and the fourth shell 61 cannot rotate after being blocked by the limiting column 62 after rotating for 90 degrees.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.