CN106012941A - Rail-type spraying dust suppression system for building construction site - Google Patents

Abstract

Construction site rail-type spray dust suppression system, including the circulation track laid on the ground of the construction site, the circulation track is equipped with a spray vehicle that can travel along the circulation track, and the construction site ground is equipped with a water storage pool adjacent to the circulation track; The shower car includes a frame with an outer box, a motor reducer and four wheels rolling on the circular track at the bottom of the frame, and the motor reducer is connected to one or two wheels through a belt transmission mechanism. , the outer box is equipped with a bracket, a water storage tank, a filter, a water pump and a pure water tank. The invention has the advantages of compact structure, convenient operation, good sealing performance, safety and reliability, and high degree of automation. The waste water is used to spray and reduce dust on the construction site, creating a good working environment for workers and maintaining the urban environment. The sludge deposited in the water storage tank is removed, which has high promotion and application value.

Description

Construction site orbital spray dust suppression system

technical field

The invention belongs to the technical field of construction environment protection, and in particular relates to a track-type spray dust suppression system for a construction site.

Background technique

With the continuous acceleration of urban modernization, a large number of construction sites inevitably appear in the city. Various construction sites have caused very bad impacts on the surrounding environment, and dust pollution is the first to bear the brunt. A large amount of dust will be generated in the construction site. If it is allowed to fly around, it will cover the whole city with a thick layer of dust; moreover, among these dusts, there are a large amount of substances harmful to human body, which will impact on the health of urban residents. At present, the fixed air-driven dust-suppressing sprayer used in the construction site is not directly aimed at the construction site. The spraying point of the water mist has large fluctuations, uneven density, small coverage area, and must be operated and maintained by a dedicated person. The cost is high and requires It is enough to purchase multiple sets at the same time, and the one-time investment of equipment is large; and tap water is used, and the cost is very high. In addition, due to the long duration of the construction project, the large area of the construction site, and the uneven ground, the effect of spraying dust at a fixed location is very small.

Contents of the invention

In order to solve the deficiencies in the prior art, the present invention provides a construction site track-type spray dust suppression system with low cost, high degree of automation, large coverage area, and automatic circulating spraying and dust suppression on the construction site.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: the construction site track-type spray dust suppression system includes a circulating track laid on the ground of the construction site, and the circulating track is provided with a spray car that can travel along the circulating track. There is a water storage tank adjacent to the circulation track on the ground of the construction site;

The spraying car includes a frame, on which there is an outer box, a motor reducer and four wheels rolling on the circular track at the bottom of the frame, and the motor reducer is driven by one or two wheels through a belt transmission mechanism. The outer box is equipped with a bracket, a water storage tank, a filter, a water pump and a pure water tank. The top of the water storage tank is equipped with a water inlet pump that supplies water to the water storage tank. The water pipe, the water storage tank and the filter are connected through the water inlet pipe. The water storage tank is provided with a filter screen located at the inlet of the water inlet pipe. The water pump is arranged on the water inlet pipe. The water inlet valve, the filter and the pure water tank are connected through an outlet pipe, the outlet pipe is provided with an outlet valve, the top of the pure water tank is connected to a water supply pipe, and the water supply pipe is connected to a high-pressure water pump on the top of the pure water tank; The water inlet pipe is connected with a sewage pipe, and the connection between the sewage pipe and the water inlet pipe is located between the water inlet valve and the pump, and the sewage pipe is provided with a sewage valve;

The water storage tank has a cylindrical structure, the bottom of the water storage tank is equipped with a bottom plate, the top of the water storage tank is equipped with a tank cover, the bottom plate is set on the bracket, and the bottom of the outer box is equipped with a sediment removal motor under the bottom plate, and the main shaft transmission connection of the sediment removal motor There is an anti-sedimentation stirring mechanism; the anti-sedimentation stirring mechanism includes a vertical stirring shaft, the lower end of the stirring shaft is connected to the main shaft of the sediment removal motor through a coupling, the upper end of the stirring shaft passes through the bottom plate, and the bottom plate is located around the stirring shaft and connected with the stirring shaft. The outer surface of the shaft is sealed and slidingly fitted with a dynamic sealing structure. The upper end of the stirring shaft is fixed with a connecting sleeve, and at least two stirring rods are arranged horizontally outside the connecting sleeve. The stirring rods are radially and evenly arranged along the circumferential direction of the connecting sleeve. The rods are connected by reinforcing rods, and there is a wear-resistant strip at the bottom of each stirring rod, and the stirring rod is detachably connected to the wear-resistant strip through countersunk screws;

The filter includes a container in the shape of a cuboid. The inner wall of the container is provided with an annular groove. The top of the container is provided with an opening corresponding to the annular groove. Through the opening, a device is inserted into the annular groove to separate the cavity into a mixed water chamber and a clean water chamber. The upper part of one end of the container is provided with a mixed water inlet connecting the water inlet pipe with the mixed water chamber, and the upper part of the other end of the container is provided with a clean water outlet connected with the outlet pipe and the clean water chamber. It is a cross-shaped support frame. The top of the container is connected with a pressure plate through fastening bolts. There is a pressure groove on the lower surface of the pressure plate, and a sealing strip with the top extending into the pressure groove is provided in the opening. There is a pad in the pressure groove. The surface is press-fitted with the upper surface of the sealing strip; the holes of the filter screen are larger than the holes of the filter plate;

There is a supporting frame on the top of the outer box, a box door on the side of the outer box, and a mounting cylinder on the top of the supporting frame. 1. The driving motor and the rotary sealing connection device, the upper bearing seat and the lower bearing seat are set up and down correspondingly, the upper bearing seat and the lower bearing seat are respectively connected to the hollow transmission shaft through the first bearing and the second bearing, and the outer wall of the hollow transmission shaft is keyed. There is a driven gear located between the upper bearing seat and the lower bearing seat. The main shaft of the driving motor is connected to the driving gear. The driving gear meshes with the driven gear. A connecting slot is opened at the center of the upper end of the hollow transmission shaft; There is a rotating jet device located above the installation cylinder; the upper end of the rotating sealing connection device is coaxially fixed and sealingly connected with the lower end of the hollow transmission shaft, and the lower end of the rotating sealing connecting device is fixed and sealingly connected with the water outlet of the water supply pipe.

The rotary sealing connection device includes a cylindrical body arranged in the vertical direction, the cylindrical body is fixed in the installation cylinder, and a hollow rotating shaft is arranged coaxially in the cylindrical body, and the upper part of the hollow rotating shaft is connected in rotation through the third bearing and the fourth bearing. In the cylinder body, an annular cavity between the third bearing and the fourth bearing is formed between the cylinder body and the hollow rotating shaft. The lower part of the hollow rotating shaft is provided with a bearing pressure ring, and the inner wall of the upper part of the bearing pressure ring is connected with the outer wall of the hollow rotating shaft. A first sealing ring is arranged between them, and a water-permeable chamber below the first sealing ring is formed between the inside of the bearing pressure ring and the hollow rotating shaft. The outer wall of the bearing pressure ring is provided with an annular groove. The water-permeable channel of the annular groove, the first O-ring above the annular groove is arranged between the outer wall of the bearing pressure ring and the inner wall of the cylinder, and the lower port of the cylinder is equipped with a detachable water-passing seal structure, and the detachable water-passing seal The upper end of the structure is press fit with the lower end surface of the bearing pressure ring, and the lower end of the detachable water sealing structure is fixed and sealed with the water outlet of the water supply pipe; The top of the third bearing is press fit, and a second sealing ring is provided between the inner wall of the upper fastening wire sleeve and the outer wall of the hollow rotating shaft;

The upper end of the hollow rotating shaft protrudes from the cylinder and extends into the connecting slot hole. The upper end of the hollow rotating shaft is coaxially sealed with the lower end of the hollow transmission shaft through a connecting clamp. The central hole of the hollow rotating shaft and the central hole of the hollow transmission shaft Up and down correspond to each other.

The detachable water-passing sealing structure includes a lower joint, the outer wall of the lower joint is threadedly connected with a lower fastening wire sleeve, the outer wall of the lower fastening wire sleeve is threadedly connected with the inner wall of the cylinder, and the lower joint is provided with a top pressure joint with the lower end of the lower fastening wire sleeve. Coordinated lower annular step, the upper end of the lower joint is provided with an upper annular step that presses against the lower surface of the bearing pressure ring, the center of the lower end of the lower joint is provided with a connection port connected to the upper end of the water supply pipe, and the lower joint is provided with a water inlet hole and an assembly hole , the lower end and upper end of the water inlet hole are respectively connected with the connection port and the assembly hole. The inner diameter of the water inlet hole is smaller than the inner diameter of the assembly hole. The lower part of the hollow rotating shaft passes through the bearing pressure ring and extends into the assembly hole. For the pressure sleeve in the assembly hole, the lower end surface of the pressure sleeve is lower than the lower end surface of the hollow rotating shaft, the inner wall of the pressure sleeve is in contact with the outer wall of the hollow rotating shaft, the outer wall of the pressure sleeve is in contact with the inner wall of the assembly hole, and the outer wall of the hollow rotating shaft and the inner wall of the assembly hole are filled with The filling sealing ring located under the gland, the second O-ring is arranged between the outer part of the lower part of the filling sealing ring and the inner wall of the assembly hole, the assembly hole is provided with a gland below the hollow rotating shaft, and the bottom of the gland is provided with a connecting assembly hole and the through hole of the water inlet hole, the upper end of the gland is press-fitted with the lower end of the filling sealing ring, and the lower end of the gland is press-fitted with the inner wall at the bottom of the assembly hole.

A drip hole and a lubricating hole are arranged outside the cylinder, the drip hole communicates with the annular groove correspondingly, the lubricating hole communicates with the annular cavity, and a plug is provided in the lubricating hole.

The rotary jet device includes a hollow and disc-shaped turntable. A connecting seat is provided at the center of the lower surface of the turntable. The connecting seat is provided with a connecting hole that communicates with the inside of the turntable. The upper end of the hollow drive shaft extends into the connecting hole and is connected to the The seat is thread-tightly connected, and at least four high-pressure nozzles are uniformly arranged on the outer peripheral surface of the turntable, and the injection direction of the high-pressure nozzles is arranged obliquely upward.

The dynamic sealing structure includes a cylindrical upper groove with an open bottom. The stirring shaft passes through the upper groove in the vertical direction and has the same centerline as the upper groove. It is detachably connected to the lower surface of the bottom plate through a circle of uniformly arranged fixing bolts. There is a lower groove inside the sealing gland that has the same inner diameter as the upper groove and corresponds to the upper. The lower groove slides with a lower annular slider. There is an upper ring slider sliding in the groove, the outer walls of the lower ring slider and the upper ring slider are in contact with the side wall of the upper groove, and the inner walls of the lower ring slider and the upper ring slider are in contact with the outer surface of the stirring shaft , the upper groove is filled with soft sealing packing located above the upper annular slider, the lower surface of the upper annular slider is evenly provided with at least three upper positioning columns along the circumferential direction, and the upper surface of the lower annular slider is evenly arranged along the circumferential direction. For the lower positioning posts with the same number of upper positioning posts, a compression spring is sleeved between the upper and lower corresponding upper positioning posts and the lower positioning posts, and the upper and lower ends of the compression springs are respectively connected to the lower surface of the upper annular slider and the upper surface of the lower annular slider. Press fit, the sealing gland is threaded in the circumferential direction with the same number of adjusting bolts as the lower positioning posts, the lower positioning posts and the adjusting bolts correspond one by one, the lower surface of the lower positioning posts is provided with installation grooves, and the upper ends of the adjusting bolts extend into the Installed in the groove and assembled and rotated in the installed groove through the pressure bearing.

With the above-mentioned technical scheme, rainwater or waste water in the construction site is stored in the storage tank. When the motor reducer drives the wheels to travel along the circular track to the side of the storage tank, the water inlet pipe is inserted into the water surface of the storage tank, and the water inlet pump is turned on. The water in the pool is pumped into the water storage tank, and the water in the water storage tank is relatively turbid. In order to avoid clogging the high-pressure nozzle and prolong the service life of the high-pressure nozzle, it is necessary to purify and filter the water in the water storage tank. The specific purification and filtration process is: open the pump The water pump and the water pump pump the muddy water stored in the water storage tank through the preliminary filtration of the filter, and then enter the filter through the water inlet pipe. After the clean water passes through the filter plate, the impurities are filtered out. The pore size of the filter plate is 0.25mm. into the pure water tank. When there are many impurities attached to the filter plate, unscrew the fastening bolts, take off the pressure plate and pad, pull out the sealing strip, use the hook to pull out the filter plate from the annular groove, and then replace it with a new filter plate, then Seal tight. The cross-shaped support frame prevents water pressure from pressing the filter plate into a concave structure so that the filter plate is separated from the annular groove.

During the process of purifying and filtering the water, the spray car travels on the circulating track, and at the same time turns on the high-pressure water pump to extract the clean water in the pure water tank. The high-pressure water enters the hollow rotating shaft in the rotary sealing connection device through the water supply pipe, and then passes through the hollow transmission shaft , and finally into the turntable, the water is atomized and sprayed with high-pressure water through the high-pressure nozzle; at the same time, the driving motor transmits the rotation action to the driven gear through the driving gear, and the driven gear drives the hollow transmission shaft to rotate, and the connection between the hollow transmission shaft and the hollow rotating shaft The connection between them is sealed and fixed by connecting clamps, and the rotation of the turntable is realized while sealing. The rotation of the turntable further improves the inertia of the high-pressure water sprayed by the high-pressure nozzle, and the spray direction of the high-pressure nozzle is set upwards, which can make the spray The radius is larger.

The working principle of the rotary sealing connection device in the present invention is: high-pressure water enters the water inlet hole of the lower joint through the water supply pipe, and then enters the hollow transmission shaft through the through hole, the assembly hole, and the hollow rotating shaft in turn; due to the inner diameter of the through hole Smaller than the inner diameter of the water inlet, under the action of high-pressure water flow, the gland is pushed upward by the high-pressure water flow, and the upper end of the gland squeezes the filling sealing ring, and the extrusion force is transmitted to the second O-ring, and the second O-ring deforms So as to play a sealing role, the second O-ring is made of special material; the filling sealing ring is closely matched with the hollow rotating shaft, and the high-pressure water flows out through the hollow rotating shaft, and the joint between the hollow rotating shaft and the filling sealing ring adopts a special process In order to reduce the friction between it and the filling sealing ring, the filling sealing ring is made of special material; the hollow rotating shaft is installed in the cylinder body through the third bearing and the fourth bearing, and the hollow rotating shaft can rotate under the action of external force ; while the third bearing and the fourth bearing need to be lubricated during use, lubricating oil can be added through the lubricating hole provided on the cylinder to lubricate the bearings, and the first O-ring and the second sealing ring are used to prevent the leakage of lubricating oil; The upper end face of the bearing pressure ring presses the fourth bearing. The inner hole of the bearing pressure ring is slidingly fitted with the hollow rotating shaft. The support sleeve on the top of the bearing pressure ring is used to support the filled sealing ring. The bearing pressure ring is made of special materials to reduce Friction with hollow rotating shaft.

When the detachable water seal structure in the rotary seal connection device leaks, that is, the filling seal ring and the second O-ring are damaged, high-pressure water will enter the water-permeable chamber along the surface of the hollow rotating shaft, and pass through the water-permeable channel, ring The groove and the drip hole flow out of the cylinder; the high-pressure water seeps into the upper surface of the bearing pressure ring along the inner wall of the assembly hole, and then flows into the drip hole through the inner wall of the cylinder. If water comes out of the drip hole, the fastening wire sleeve needs to be disassembled, and the filling sealing ring and the second O-ring are replaced. The first O-ring prevents water from entering the third and fourth bearings.

The rotary sealing connection device realizes the connection between the fixed high-pressure water pipe and the high-speed rotating hollow transmission shaft, and plays a good sealing role, meeting the requirements of rotation and sealing under high pressure.

Since the water inlet pump pumps the sewage or rainwater deposited in the storage tank into the water storage tank, more sedimentation will be generated at the bottom of the water storage tank after a long time, so the sedimentation mud at the bottom of the water storage tank needs to be cleaned every once in a while. The specific cleaning process is as follows: disassemble the filter, close the water inlet valve, open the drain valve, turn on the sediment removal motor, the sediment removal motor drives the stirring shaft to rotate, the upper end of the stirring shaft drives the stirring rod to rotate through the connecting sleeve, and the stirring rod rotates to deposit The mud at the bottom of the water storage tank is stirred up, and then the pump is turned on to draw the mud liquid out of the sewage pipe. At the same time, turn on the water inlet pump, inject water into the water storage tank, and mix it, so that the sediment removal effect is better.

There are at least two stirring rods to ensure the balance and stability of the main shaft. The reinforcing rod plays a role in enhancing the strength of the stirring rod. A wear-resistant smooth plate can be set on the upper surface of the bottom plate, and the wear-resistant strip is in sliding contact with the surface of the wear-resistant smooth plate; the wear-resistant strip is in contact with the wear-resistant slide plate to rotate, so as to reduce friction as much as possible. When the wear-resistant strip is worn, the countersunk head can be unscrewed The bolts replace the wear strips.

Since the stirring shaft vertically passes through the bottom plate, there is a gap between the stirring shaft and the bottom plate, so a dynamic sealing structure is arranged on the outer wall of the stirring shaft. The dynamic sealing structure seals the rotating agitating shaft through soft sealing packing (soft sealing packing, commonly known as mud-like soft packing, which is a new asbestos-free polymer material synthetic sealing packing, which has a special plasticity in the appearance of clay). Move the adjusting bolt so that the lower annular slider presses the upper annular slider upwards through the compression spring, and the upper annular slider presses the soft sealing packing upwards to realize the sealing of the stirring shaft during rotation. In addition, the upper surface of the upper annular slider can be set as a conical concave structure with a small inside and a large outside, so that when the soft sealing packing is pressed upwards, the extrusion force on the soft sealing packing is directed towards the stirring shaft, thereby improving the sealing effect. The upper positioning post and the lower positioning post can limit the axis of the compression spring to maintain a vertical direction, so that the compression spring can play a good elastic state. The pressure bearing plays a role in preventing the lower annular slide block from rotating with the adjusting bolt when the adjusting bolt is turned. When screwing the adjusting bolts, they should be screwed one by one, so as to ensure that the soft seal seasoning pressure received by the stirring shaft in the circumferential direction remains balanced. Tighten the nut, so as to prevent the adjusting nut from loosening automatically after being adjusted in place.

To sum up, the present invention has the advantages of compact structure, convenient operation, good sealing performance, safety and reliability, and high degree of automation. It uses waste water to spray and reduce dust on the construction site, creating a good working environment for workers and maintaining the city's environment. environment, and can remove the mud deposited in the water storage tank, which has a high value of popularization and application.

Description of drawings

Fig. 1 is a floor plan of the present invention

Fig. 2 is the structural representation of spray car among Fig. 1;

Fig. 3 is the structural representation of filter among Fig. 2;

Fig. 4 is the enlarged view of place A in Fig. 2;

Fig. 5 is a schematic structural view of the rotary sealing connection device in Fig. 4;

Fig. 6 is a schematic structural view of the bearing pressure ring in Fig. 5;

Figure 7 is an enlarged view of the anti-sedimentation stirring mechanism in Figure 1;

Fig. 8 is an enlarged view of place A in Fig. 7;

Fig. 9 is a top view of the anti-sedimentation stirring mechanism in Fig. 7 in the water storage tank.

detailed description

As shown in Figures 1-9, the track-type spray dust suppression system for a construction site of the present invention includes a circulation track 30 laid on the ground of the construction site, and the circulation track 30 can be laid on a suitable section of the construction site to realize a through circulation Just exercise. The circulating track 30 is provided with a spray vehicle 102 that can travel along the circulating track 30 , and a water storage tank 31 adjacent to the circulating track 30 is provided on the ground of the construction site.

Spray car 102 comprises vehicle frame 32, and vehicle frame 32 is provided with outer casing 33, and vehicle frame 32 bottom is provided with motor reducer 34 and four wheels 35 that are rollingly connected on the circulation track 30, and motor reducer 34 passes belt The transmission mechanism is connected with one or two wheels 35, and the outer box body 33 is provided with a support 1, a water storage tank 36, a filter 37, a water pump 38 and a pure water tank 39, and the top of the water storage tank 36 is provided with a The water inlet pump 40 for water supply, the water inlet of the water inlet pump 40 is connected with the water inlet pipe 41 extending out of the outer casing 33, the water storage tank 36 and the filter 37 are connected by the water inlet pipe 42, and the water storage tank 36 is provided with a water inlet pipe 42 The filter screen 43 at the entrance, the water pump 38 is located on the water inlet pipe 42, the water inlet pipe 42 is provided with the water inlet valve 44 between the water pump 38 and the filter 37, and passes between the filter 37 and the pure water tank 39 Water outlet pipe 45 is connected, and water outlet pipe 45 is provided with outlet valve 46, and pure water tank 39 tops are connected with water supply pipe 47, and water supply pipe 47 is connected with the high-pressure water pump 48 that is located at pure water tank 39 tops. The water inlet pipe 42 is connected with a sewage discharge pipe 28 , and the connection between the sewage discharge pipe 28 and the water inlet pipe is located between the water inlet valve 44 and the water pump 38 , and the sewage discharge pipe 28 is provided with a sewage discharge valve 29 .

The water storage tank 36 has a cylindrical structure, the bottom of the water storage tank 36 is provided with a bottom plate 2, the top of the water storage tank 36 is provided with a tank cover 4, the bottom plate 2 is arranged on the support 1, and the bottom of the outer box 33 is provided with a sediment removal system located below the bottom plate 2. Motor 7, the main shaft drive of removing precipitation motor 7 is connected with anti-sedimentation agitation mechanism 5; Anti-sedimentation agitation mechanism 5 comprises vertically arranged stirring shaft 8, and the lower end of stirring shaft 8 is connected with the main shaft of removal precipitation motor 7 by coupling 9, stirring The upper end of the shaft 8 passes through the bottom plate 2, and the bottom plate 2 is provided with a dynamic sealing structure located around the stirring shaft 8 and sealingly and slidingly fitted with the outer surface of the stirring shaft 8. There are at least two stirring rods 11, the stirring rods 11 are radially and evenly arranged along the circumferential direction of the connecting sleeve 10, and the adjacent two stirring rods 11 are connected by a reinforcing rod 12, and each stirring rod 11 is equipped with a wear-resistant The bar 13 is detachably connected to the wear bar 13 by a countersunk screw 14 on the stirring rod 11.

The filter 37 includes a container 49 in the shape of a cuboid. The inner wall of the container 49 is provided with an annular groove. The top of the container 49 is provided with an opening corresponding to the annular groove, and a cavity is inserted into the annular groove through the opening. The filter plate 52 of chamber 50 and clear water chamber 51, the upper part of one end of container 49 is provided with the mixed water inlet 53 that water inlet pipe 42 and mixed water chamber 50 are communicated, and the upper part of the other end of container 49 is provided with outlet pipe 45 and clear water chamber 51 is communicated with. Clear water outlet 54, container 49 inner wall is provided with and is positioned at filter plate 52 both sides and is cross-shaped support frame 55, and container 49 top is connected with pressing plate 57 by fastening bolt 56, and pressing plate 57 lower surface is provided with pressing groove, and opening is provided with There is a sealing strip 58 whose top extends into the press groove, and a cushion block 59 is arranged in the press groove, and the lower surface of the cushion block 59 is crimped and fitted with the upper surface of the seal strip 58; the holes of the filter screen 43 are larger than the holes of the filter plate 52;

The top of the outer box body 33 is provided with a support frame 60, the side of the outer box body 33 is provided with a box door, the top of the support frame 60 is provided with a mounting cylinder 61, the center line of the mounting cylinder 61 is arranged along the vertical direction, and the installation cylinder 61 is provided with The upper bearing seat 62, the lower bearing seat 63, the drive motor 64 and the rotary sealing connection device 65, the upper bearing seat 62 and the lower bearing seat 63 are arranged correspondingly up and down, and the upper bearing seat 62 and the lower bearing seat 63 pass through the first bearing 66 and the lower bearing seat 63 respectively. The second bearing 67 is rotatably connected with a hollow transmission shaft 68, the outer wall of the hollow transmission shaft 68 is keyed with a driven gear 69 located between the upper bearing seat 62 and the lower bearing seat 63, and the main shaft of the driving motor 64 is connected with a driving gear 70. The driving gear 70 meshes with the driven gear 69, and the center of the upper end of the hollow transmission shaft 68 is provided with a connecting slot; the upper end of the hollow transmission shaft 68 is provided with a rotating jet device located above the installation cylinder 61; the upper end of the rotary sealing connection device 65 is connected to the hollow transmission shaft. The lower end of 68 is fixed and sealed in the same axial direction, and the lower end of the rotary sealing connection device 65 is fixed and sealed in connection with the water outlet of the water supply pipe 47 .

The rotary sealing connection device 65 includes a cylindrical body 71 arranged in the vertical direction, the cylindrical body 71 is fixed in the installation cylinder 61, a hollow rotating shaft 72 is coaxially arranged in the cylindrical body 71, and the upper part of the hollow rotating shaft 72 passes through the third The bearing 73 and the fourth bearing 74 are rotatably connected in the cylindrical body 71, an annular cavity 75 between the third bearing 73 and the fourth bearing 74 is formed between the cylindrical body 71 and the hollow rotating shaft 72, and the hollow rotating shaft 72 The lower part is covered with a bearing pressure ring 76, and a first sealing ring 77 is arranged between the inner wall of the upper part of the bearing pressure ring 76 and the outer wall of the hollow rotating shaft 72, and the first sealing ring 77 is formed between the inside of the bearing pressing ring 76 and the hollow rotating shaft 72. The water-permeable chamber 78 below, the outer wall of the bearing pressure ring 76 is provided with an annular groove 79, and the inner wall of the bearing pressure ring 76 is horizontally provided with a water-permeable channel 80 connecting the water-permeable chamber 78 and the annular groove 79. There is a first O-ring 81 located above the annular groove 79, and a detachable water-passing sealing structure is provided in the lower port of the cylinder body 71. The upper end of the detachable water-passing sealing structure is press-fitted with the lower end surface of the bearing pressure ring 76, The lower end of the detachable water sealing structure is fixed and sealed with the water outlet of the water supply pipe 47; the upper port of the cylindrical body 71 is threadedly connected with an upper fastening wire sleeve 82, and the lower end of the upper fastening wire sleeve 82 is press-fitted with the top of the third bearing 73 , A second sealing ring 83 is provided between the inner wall of the upper fastening wire sleeve 82 and the outer wall of the hollow rotating shaft 72 .

The upper end of the hollow rotating shaft 72 protrudes from the cylindrical body 71 and extends into the connecting slot hole. The upper end of the hollow rotating shaft 72 is coaxially sealed with the lower end of the hollow transmission shaft 68 through a connecting clamp 84. The central hole of the hollow rotating shaft 72 and The central hole of the hollow transmission shaft 68 is correspondingly connected up and down.

The detachable water-passing sealing structure includes a lower joint 85, the outer wall of the lower joint 85 is threadedly connected with a lower fastening wire sleeve 86, the outer wall of the lower fastening wire sleeve 86 is threaded with the inner wall of the cylinder body 71, and the lower joint 85 is externally provided with a lower tightening wire sleeve. The lower end of the fixed wire sleeve 86 is press-fitted with a lower annular step 87, the upper end of the lower joint 85 is provided with an upper annular step 88 that is press-fitted with the lower surface of the bearing pressure ring 76, and the center of the lower end of the lower joint 85 is provided with a hole connected to the upper end of the water supply pipe 47. The connection port 89, the lower joint 85 are provided with a water inlet hole 90 and an assembly hole 91, the lower end and the upper end of the water inlet hole 90 communicate with the connection port 89 and the assembly hole 91 respectively, the inner diameter of the water inlet hole 90 is smaller than the inner diameter of the assembly hole 91, and the hollow rotating shaft The lower part of 72 passes through the bearing pressure ring 76 and extends into the assembly hole 91. The bottom of the bearing pressure ring 76 is provided with a pressure sleeve 92 extending into the assembly hole 91. The lower end surface of the pressure sleeve 92 is lower than the lower end surface of the hollow rotating shaft 72. , the inner wall of the pressure sleeve 92 is in contact with the outer wall of the hollow rotating shaft 72, the outer wall of the pressure sleeve 92 is in contact with the inner wall of the assembly hole 91, the outer wall of the hollow rotating shaft 72 and the inner wall of the assembly hole 91 are filled with a filling seal ring 93 located below the pressure sleeve 92, and the filling seal ring A second O-ring 94 is provided between the outer side of the lower part of 93 and the inner wall of the assembly hole 91, and the assembly hole 91 is provided with a gland 95 below the hollow rotating shaft 72, and the bottom of the gland 95 is provided with a connecting assembly hole 91 and a water inlet hole 90 The through hole 96 of the through hole 96, the upper end of the gland 95 is press-fitted with the lower end of the filling sealing ring 93, and the lower end of the gland 95 is press-fitted with the inner wall of the bottom of the assembly hole 91.

The cylinder body 71 is provided with a drip hole 97 and a lubricating hole 98, the drip hole 97 communicates with the annular groove 79 correspondingly, the lubricating hole 98 communicates with the annular cavity 75, and the lubricating hole 98 is provided with a plug.

The rotary jet device comprises a hollow and disk-shaped turntable 99, a connection seat 100 is provided at the center of the lower surface of the turntable 99, and a connection hole communicating with the interior of the turntable 99 is provided on the connection seat 100, and the upper end of the hollow transmission shaft 68 extends into the The connecting hole is threadedly connected with the connecting seat 100 , and at least four high-pressure spray nozzles 101 are uniformly arranged on the outer peripheral surface of the turntable 99 , and the injection direction of the high-pressure nozzle 101 is arranged obliquely upward.

The dynamic sealing structure includes an upper groove 15 with an open bottom and a cylindrical shape. The stirring shaft 8 passes through the upper groove 15 in the vertical direction and has the same center line as the upper groove 15. The stirring shaft 8 is covered with a sealing gland 16. The outer side of the sealing gland 16 is detachably connected to the lower surface of the bottom plate 2 through a circle of uniformly arranged fixing bolts 17. The sealing gland 16 is provided with a lower groove 18 with the same inner diameter as the upper groove 15 and corresponding to the upper and lower. A lower annular slider 19 is slidably provided in the groove 18, and an upper annular slider 20 is slidably provided in the upper groove 15, and the outer walls of the lower annular slider 19 and the upper annular slider 20 are in contact with the side walls of the upper groove 15, The inner wall of the lower annular slider 19 and the upper annular slider 20 is in contact with the outer surface of the stirring shaft 8, the upper groove 15 is filled with a soft sealing packing 21 above the upper annular slider 20, and the lower surface of the upper annular slider 20 Evenly be provided with at least three upper positioning columns 22 along the circumferential direction, the upper surface of the lower annular slider 19 is evenly provided with the lower positioning columns 23 with the same number as the upper positioning columns 22 along the circumferential direction, and the corresponding upper positioning columns 22 and lower positioning columns up and down A compression spring 24 is sleeved between the columns 23, and the upper end and the lower end of the compression spring 24 are press-fitted with the lower surface of the upper annular slider 20 and the upper surface of the lower annular slider 19 respectively. Adjusting bolts 25 having the same number as the lower positioning posts 23, the lower positioning posts 23 and the adjusting bolts 25 are in a one-to-one correspondence, the lower surface of the lower positioning posts 23 is provided with mounting grooves, and the upper ends of the adjusting bolts 25 extend into the mounting grooves and pass through the pressure bearings. 26 are assembled and rotatably connected in the mounting groove.

The upper surface of the bottom plate 2 is provided with a wear-resistant smooth plate 27, and the wear-resistant strip 13 is in sliding contact with the surface of the wear-resistant smooth plate 27.

The upper surface of the upper annular slider 20 is a conical concave structure with a small inside and a large outside.

When the present invention is used in work, rainwater or waste water in the construction site is stored in the water storage tank 31. When the motor reducer 34 drives the wheels 35 to advance to the side of the water storage tank 31 along the circulation track 30, the water inlet pipe 41 is extended into the water storage tank 31. Under the water surface, turn on the water inlet pump 40 to pump the water in the water storage tank 31 into the water storage tank 36. The water in the water storage tank 36 is relatively turbid. The water purification and filtration treatment in 36, the specific purification and filtration process is: open the water pump 38, the water pump 38 extracts the muddy water stored in the water storage tank 36, first passes through the filter screen 43 for preliminary filtration, and then enters the filter 37 through the water inlet pipe 42 Inside, impurities are filtered out after clear water passes through the filter plate 52, the aperture of the filter plate 52 is 0.25mm, and the clean water enters in the pure water tank 39. When there are many impurities attached to the filter plate 52, unscrew the fastening bolt 56, take off the pressure plate 57 and pad 59, pull out the sealing strip 58, use the hook to extract the filter plate 52 from the annular groove 79, and then replace Put on a new filter plate 52, and then seal it tightly. The cross-shaped support frame 55 prevents water pressure from pressing the filter plate 52 into a concave structure so that the filter plate 52 is separated from the annular groove 79 .

During the water purification and filtration process, the spray truck 102 travels on the circulating track 30, and at the same time, the high-pressure water pump 48 is turned on to extract the clean water in the pure water tank 39, and the high-pressure water enters the hollow rotating shaft in the rotary sealing connection device 65 through the water supply pipe 47 72, then through the hollow drive shaft 68, finally enters the turntable 99, and sprays the high-pressure water through the high-pressure nozzle 101; at the same time, the driving motor 64 transmits the rotation action to the driven gear 69 through the driving gear 70, and the driven gear 69 Drive the hollow transmission shaft 68 to rotate, the hollow transmission shaft 68 and the hollow rotating shaft 72 are sealed and fixedly connected by the connecting clamp 84, and the rotation of the turntable 99 is realized while sealing, and the rotation of the turntable 99 is the high-pressure water sprayed by the high-pressure nozzle 101. The inertia is further improved, and the injection direction of the high-pressure spray head 101 is arranged obliquely upward, so that the radius of injection can be made larger.

The working principle of the rotary sealing connection device 65 in the present invention is: high-pressure water enters the water inlet hole 90 of the lower joint 85 through the water supply pipe 47, and then enters the hollow transmission through the through hole 96, the assembly hole 91, and the hollow rotating shaft 72 in sequence. Inside the shaft 68; because the inner diameter of the through hole 96 is smaller than the inner diameter of the water inlet hole 90, under the action of high-pressure water flow, the gland 95 is pushed upward by the high-pressure water flow, and the upper end of the gland 95 squeezes the filling sealing ring 93, and the extrusion force is transmitted to the first On the second O-ring 94, the second O-ring 94 is deformed to play a sealing role. The second O-ring 94 is made of special material; the filling sealing ring 93 is tightly matched with the hollow rotating shaft 72, and the high-pressure water flows through The hollow rotating shaft 72 flows out, and the joint between the hollow rotating shaft 72 and the filling sealing ring 93 is treated with a special process in order to reduce the friction between it and the filling sealing ring 93. The filling sealing ring 93 is made of special materials; the hollow rotating shaft 72 The third bearing 73 and the fourth bearing 74 are installed in the cylindrical body 71, and the hollow rotating shaft 72 can rotate under the action of an external force; while the third bearing 73 and the fourth bearing 74 need to be lubricated during use, through the cylindrical body The lubricating hole 98 that is provided with on 71 can lubricate the bearing by adding lubricating oil, the first O-ring 81 and the second seal ring 83 are used to stop the lubricating oil from leaking; 76 inner holes are slidably matched with the hollow rotating shaft 72, and the support sleeve at the top of the bearing pressure ring 76 is used to support the filled sealing ring 93. The bearing pressure ring 76 is made of special materials to reduce the friction between it and the hollow rotating shaft 72.

When the detachable water sealing structure in the rotary sealing connection device 65 leaks, that is, the filling sealing ring 93 and the second O-ring 94 are damaged, high-pressure water will enter the water-permeable chamber 78 along the surface of the hollow rotating shaft 72, and The cylinder 71 flows out through the permeable channel 80, the annular groove 79 and the drip hole 97; the high-pressure water penetrates into the upper surface of the bearing pressure ring 76 or along the inner wall of the assembly hole 91, and then flows into the drip hole 97 through the inner wall of the cylinder 71. If water comes out from the drip hole 97, the fastening wire sleeve 86 needs to be disassembled, and the filling sealing ring 93 and the second O-ring 94 are replaced. The first O-ring 81 prevents water from entering the third bearing 73 and the fourth bearing 74 .

Since the sewage or rainwater deposited in the water storage tank 31 is pumped into the water storage tank 36 by the water inlet pump 38, more precipitation will be produced at the bottom of the water storage tank 36 after a long time, so the sedimentation mud at the bottom of the water storage tank 36 needs to be cleaned at intervals. The specific removal process is as follows: disassemble the filter screen 43, close the water inlet valve 44, open the sewage valve 29, open the sediment removal motor 7, the sediment removal motor 7 drives the stirring shaft 8 to rotate, and the upper end of the stirring shaft 8 drives the stirring rod through the connecting sleeve 10 11 rotates, and the stirring rod 11 rotates and stirs up the mud deposited at the bottom of the water storage tank 36, and then the water pump 38 is opened to extract the mud liquid from the blowdown pipe 28. Simultaneously, open the water inlet pump 40, inject water again in the water storage tank 36, through mixing, make the deposit removal effect better like this.

Toggle lever 11 is provided with at least two, guarantees the balance stability of main shaft. The reinforcing rod 12 plays a role in enhancing the strength of the toggle rod 11 . The wear-resistant strip 13 contacts and rotates with the wear-resistant slide plate to reduce friction as much as possible. When the wear-resistant strip 13 wears out, the countersunk bolt can be unscrewed to replace the wear-resistant strip 13.

Since the stirring shaft 8 passes through the bottom plate 2 vertically, there is a gap between the stirring shaft 8 and the bottom plate 2 , so a dynamic sealing structure is provided on the outer wall of the stirring shaft 8 . The dynamic sealing structure seals the rotating stirring shaft 8 through soft sealing packing 21 (soft sealing packing 21, commonly known as mud-like soft packing, is a new sealing packing made of asbestos-free polymer material, which has a special plasticity in appearance like clay) , by turning the adjusting bolt 25, the lower annular slider 19 presses the upper annular slider 20 upwards through the compression spring 24, and the upper annular slider 20 presses the soft sealing packing 21 upwards to realize the sealing of the stirring shaft 8 during rotation, In addition, since the upper surface of the upper annular slider 20 is a conical concave structure with a small inside and a large outside, when the soft sealing packing 21 is pressed upward, the extrusion force on the soft sealing packing 21 is directed towards the stirring shaft 8, thereby improving the sealing effect. The upper positioning post 22 and the lower positioning post 23 can limit the axis of the compression spring 24 to maintain a vertical direction, so that the compression spring 24 can play a good elastic state. The pressure bearing 26 plays a role in preventing the lower annular slider 19 from rotating with the adjusting bolt 25 when the adjusting bolt 25 is turned. When turning the adjusting bolt 25, it is necessary to turn it one by one, so as to ensure that the soft seal seasoning pressure received by the stirring shaft 8 in the circumferential direction remains balanced. Press-fit lock nut, which prevents the adjusting nut from loosening automatically after being adjusted in place.

The above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced without departing from it. Any modifications or partial replacements within the spirit and scope of the present invention shall fall within the scope of the claims of the present invention.

Claims (6)

1. The track-type spray dust suppression system of the building construction site is characterized in that: it includes a circular track laid on the ground of the construction site. track water storage tanks; The spraying car includes a frame, on which there is an outer box, a motor reducer and four wheels rolling on the circular track at the bottom of the frame, and the motor reducer is driven by one or two wheels through a belt transmission mechanism. The outer box is equipped with a bracket, a water storage tank, a filter, a water pump and a pure water tank. The top of the water storage tank is equipped with a water inlet pump that supplies water to the water storage tank. The water pipe, the water storage tank and the filter are connected through the water inlet pipe. The water storage tank is provided with a filter screen located at the inlet of the water inlet pipe. The water pump is arranged on the water inlet pipe. The water inlet valve, the filter and the pure water tank are connected through an outlet pipe, the outlet pipe is provided with an outlet valve, the top of the pure water tank is connected to a water supply pipe, and the water supply pipe is connected to a high-pressure water pump on the top of the pure water tank; The water inlet pipe is connected with a sewage pipe, and the connection between the sewage pipe and the water inlet pipe is located between the water inlet valve and the pump, and the sewage pipe is provided with a sewage valve; The water storage tank has a cylindrical structure, the bottom of the water storage tank is equipped with a bottom plate, the top of the water storage tank is equipped with a tank cover, the bottom plate is set on the bracket, and the bottom of the outer box is equipped with a sediment removal motor under the bottom plate, and the main shaft transmission connection of the sediment removal motor There is an anti-sedimentation stirring mechanism; the anti-sedimentation stirring mechanism includes a vertical stirring shaft, the lower end of the stirring shaft is connected to the main shaft of the sediment removal motor through a coupling, the upper end of the stirring shaft passes through the bottom plate, and the bottom plate is located around the stirring shaft and connected with the stirring shaft. The outer surface of the shaft is sealed and slidingly fitted with a dynamic sealing structure. The upper end of the stirring shaft is fixed with a connecting sleeve, and at least two stirring rods are arranged horizontally outside the connecting sleeve. The stirring rods are radially and evenly arranged along the circumferential direction of the connecting sleeve. The rods are connected by reinforcing rods, and there is a wear-resistant strip at the bottom of each stirring rod, and the stirring rod is detachably connected to the wear-resistant strip through countersunk screws; The filter includes a container in the shape of a cuboid. The inner wall of the container is provided with an annular groove. The top of the container is provided with an opening corresponding to the annular groove. Through the opening, a device is inserted into the annular groove to separate the cavity into a mixed water chamber and a clean water chamber. The upper part of one end of the container is provided with a mixed water inlet connecting the water inlet pipe with the mixed water chamber, and the upper part of the other end of the container is provided with a clean water outlet connected with the outlet pipe and the clean water chamber. It is a cross-shaped support frame. The top of the container is connected with a pressure plate through fastening bolts. There is a pressure groove on the lower surface of the pressure plate, and a sealing strip with the top extending into the pressure groove is provided in the opening. There is a pad in the pressure groove. The surface is press-fitted with the upper surface of the sealing strip; the holes of the filter screen are larger than the holes of the filter plate; There is a supporting frame on the top of the outer box, a box door on the side of the outer box, and a mounting cylinder on the top of the supporting frame. 1. The driving motor and the rotary sealing connection device, the upper bearing seat and the lower bearing seat are set up and down correspondingly, the upper bearing seat and the lower bearing seat are respectively connected to the hollow transmission shaft through the first bearing and the second bearing, and the outer wall of the hollow transmission shaft is keyed. There is a driven gear located between the upper bearing seat and the lower bearing seat. The main shaft of the driving motor is connected to the driving gear. The driving gear meshes with the driven gear. A connecting slot is opened at the center of the upper end of the hollow transmission shaft; There is a rotating jet device located above the installation cylinder; the upper end of the rotating sealing connection device is coaxially fixed and sealingly connected with the lower end of the hollow transmission shaft, and the lower end of the rotating sealing connecting device is fixed and sealingly connected with the water outlet of the water supply pipe. 2. The track-type spray dust suppression system for a building construction site according to claim 1, characterized in that: the rotary sealing connection device includes a cylindrical body arranged in the vertical direction, the cylindrical body is fixed in the installation tube, and the cylindrical body is the same A hollow rotating shaft is provided in the axial direction, and the upper part of the hollow rotating shaft is rotationally connected in the cylinder body through the third bearing and the fourth bearing, and an annular cavity between the third bearing and the fourth bearing is formed between the cylinder body and the hollow rotating shaft The lower part of the hollow rotating shaft is covered with a bearing pressure ring, and the first sealing ring is arranged between the inner wall of the upper part of the bearing pressing ring and the outer wall of the hollow rotating shaft. Water-permeable chamber, the outer wall of the bearing pressure ring is provided with an annular groove, and the inner surface of the bearing pressure ring is horizontally provided with a water-permeable channel connecting the water-permeable chamber and the annular groove. Type ring, the lower port of the cylinder body is provided with a detachable water seal structure, the upper end of the detachable water seal structure is pressed against the lower end surface of the bearing pressure ring, and the lower end of the detachable water seal structure is fixed and sealed with the water outlet of the water supply pipe Connection; the upper port of the cylinder body is threaded with an upper fastening wire sleeve, the lower end of the upper fastening wire sleeve is press-fitted with the top of the third bearing, and a second sealing ring is provided between the inner wall of the upper fastening wire sleeve and the outer wall of the hollow rotating shaft ; The upper end of the hollow rotating shaft protrudes from the cylinder and extends into the connecting slot hole. The upper end of the hollow rotating shaft is coaxially sealed with the lower end of the hollow transmission shaft through a connecting clamp. The central hole of the hollow rotating shaft and the central hole of the hollow transmission shaft Up and down correspond to each other. 3. The track-type spray dust suppression system for construction sites according to claim 2, characterized in that: the detachable water-passing sealing structure includes a lower joint, the outer wall of the lower joint is threaded with a lower fastening wire sleeve, and the lower fastening wire sleeve The outer wall is threadedly connected to the inner wall of the cylinder, and the lower joint is provided with a lower annular step that is press-fitted with the lower end of the lower fastening wire sleeve, and the upper end of the lower joint is provided with an upper annular step that is press-fitted with the lower surface of the bearing pressure ring. The center of the lower end is provided with a connection port connected to the upper end of the water supply pipe. The lower joint is provided with a water inlet hole and an assembly hole. The lower end and the upper end of the water inlet hole are respectively connected with the connection port and the assembly hole. The lower part of the shaft passes through the bearing pressure ring and extends into the assembly hole. The bottom of the bearing pressure ring is provided with a pressure sleeve extending into the assembly hole. The lower end surface of the pressure sleeve is lower than the lower end surface of the hollow rotating shaft. The outer wall of the shaft is in contact, the outer wall of the pressure sleeve is in contact with the inner wall of the assembly hole, the outer wall of the hollow rotating shaft and the inner wall of the assembly hole are filled with a filling seal ring located below the pressure sleeve, and a second O-ring is arranged between the outer part of the lower part of the filling seal ring and the inner wall of the assembly hole , the assembly hole is provided with a gland located below the hollow rotating shaft, the bottom of the gland is provided with a through hole connecting the assembly hole and the water inlet hole, the upper end of the gland is press-fitted with the lower end of the filling sealing ring, and the lower end of the gland is fitted with the inner wall of the bottom of the assembly hole Press fit. 4. The track-type spray dust suppression system for a construction site according to claim 3, characterized in that: a drip hole and a lubricating hole are provided outside the cylinder, the drip hole communicates with the annular groove correspondingly, and the lubricating hole communicates with the annular cavity. A plug is provided in the lubricating hole. 5. The track-type spray dust suppression system for construction sites according to any one of claims 1-4, characterized in that: the rotating jet device includes a hollow disc-shaped turntable, and a connection is provided at the center of the lower surface of the turntable. The connecting seat is provided with a connecting hole communicating with the interior of the turntable. The upper end of the hollow transmission shaft extends into the connecting hole and is threadedly connected with the connecting seat. The spray direction is set obliquely upwards. 6. The track-type spray dust suppression system for construction sites according to any one of claims 1-4, characterized in that: the dynamic sealing structure includes a cylindrical upper groove with an open bottom, and the stirring shaft passes through in the vertical direction The upper groove has the same center line as the upper groove. A sealing gland is set on the stirring shaft. The outer side of the sealing gland is detachably connected to the lower surface of the bottom plate through a circle of uniformly arranged fixing bolts. The inner diameter of the upper groove is the same as that of the lower groove corresponding to the upper. The lower groove is slid with a lower annular slider. The upper groove is slid with an upper annular slider. The outer wall of the lower annular slider and the upper annular slider It is in contact with the side wall of the upper groove, the inner wall of the lower and upper ring sliders is in contact with the outer circular surface of the stirring shaft, the upper groove is filled with soft sealing packing located above the upper ring slider, and the upper ring slider The lower surface is evenly provided with at least three upper positioning posts along the circumferential direction, and the upper surface of the lower annular slider is evenly provided with the same number of lower positioning posts as the upper positioning posts along the circumferential direction. The sleeve is equipped with a compression spring, and the upper end and the lower end of the compression spring are press-fitted with the lower surface of the upper annular slider and the upper surface of the lower annular slider respectively, and the sealing gland is screwed with the same number of adjusting bolts as the lower positioning columns along the circumferential direction. , the lower positioning column and the adjusting bolt are in one-to-one correspondence, the lower surface of the lower positioning column is provided with a mounting groove, the upper end of the adjusting bolt extends into the mounting groove and is assembled and rotationally connected in the mounting groove through a pressure bearing.