CN115126007B - Static pressure type flexible vibration isolation air bag plate inserting machine and construction method - Google Patents

Abstract

The invention discloses a static pressure type flexible vibration-isolation airbag inserting machine and a construction method, belonging to the technical field of vibration isolation equipment in the process of dynamic compaction foundation reinforcement, including inserting plates, and static pressure inserting plate hoisting devices are arranged on both sides of the inserting plates; The flashboard includes a flashboard main body with upper and lower openings, and an airbag delivery device is fixedly installed on the top or upper side of the flashboard main body. The airbag delivery device includes an active conveying roller and a sliding driven roller arranged side by side, and the active conveying roller is connected to the power device. Both ends of the sliding driven roller are connected with elastic telescopic devices to adjust the distance between the active conveying roller and the sliding driven roller. The lower side of the main body of the plug-in board is provided with a plug-in board flare that is closed up and down. The plug-in machine can directly place the vibration-isolation airbag into the area where vibration isolation is required, and can realize continuous operation and seamless connection between the airbags.

Description

A static pressure flexible vibration-isolation airbag inserting machine and construction method

technical field

The invention belongs to the technical field of vibration isolation equipment in the process of dynamic compaction foundation reinforcement, and in particular relates to a static pressure type flexible vibration isolation airbag inserting machine and a construction method.

Background technique

The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

In the process of widening the traditional expressway, a large number of pipe piles and slurry spray piles are used for foundation reinforcement, and the engineering cost is high. Dynamic compaction is an ideal construction technology with fast construction, short construction period and only about one-tenth of the cost of pipe piles and other technologies. However, the construction of dynamic compaction will cause the ground to vibrate and damage the original structure of the road and surrounding building facilities, which is a key technical problem restricting the application of dynamic compaction engineering.

At present, the conventional disposal schemes include vibration isolation technologies such as empty ditch vibration isolation, flexible vibration isolation, and rigid vibration isolation. The construction process is very likely to cause landslides and vibration isolation materials cannot be placed during the construction process, which eventually leads to the ineffectiveness of vibration isolation measures.

Contents of the invention

In view of the deficiencies in the prior art, the object of the present invention is to provide a static pressure flexible vibration-isolation airbag insertion machine and a construction method. The two sides are folded, and after inflation, the two sides are stretched and fit each other, which can realize continuous operation and seamless connection between airbags.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

In the first aspect, the present invention provides a static-pressure flexible vibration-isolation airbag inserting machine, which includes an inserting plate, and static pressure inserting plate hoisting devices are arranged on both sides of the inserting plate; the inserting plate includes an inserting plate main body with upper and lower openings , the top or upper side of the main body of the flashboard is fixedly equipped with an airbag conveying device, the airbag conveying device includes an active conveying roller and a sliding driven roller arranged side by side, the active conveying roller is connected with the power device, and both ends of the sliding driven roller are connected with the elastic telescopic device connected to adjust the distance between the active conveying roller and the sliding driven roller, and the air bag is transported between the active conveying roller and the sliding driven roller into the inner cavity of the main body of the flashboard; Plate flaring.

As a further technical solution, the elastic telescopic device includes a casing, the bottom of the casing is connected to the main body of the plug-in plate, the upper part of the casing has a hole for the sliding rod to pass through, the spring is placed on the sliding rod, and the gap between the active conveying roller and the sliding driven roller The pressing force is adjusted by a spring.

As a further technical solution, the driving conveying roller includes a first shaft, and the two ends of the first shaft are wrapped with a first rubber coating layer; the sliding driven roller includes a second shaft, and both ends of the second shaft are wrapped with A second coating layer is provided.

As a further technical solution, a first bearing is provided on the outer periphery of the first shaft of the driving conveying roller, and the bearing of the sliding driven roller is located inside the second rubber covering layer.

As a further technical solution, a side wall opening is provided on the upper side of the main body of the flashboard, and a bag is wrapped outside the airbag, and the bag includes an airbag area, a steel plate area and a cutting area arranged in sequence.

As a further technical solution, the two sides of the airbag are folded, and the two sides of the airbag are stretched after being inflated, and the adjacent airbags are attached to each other so as to be seamlessly connected.

As a further technical solution, an airbag lifting device is arranged above the flashboard, and a visual camera is arranged on the top of the flashboard main body.

As a further technical solution, the inserting plate is slidingly connected to the fine-adjustment slide rail through the insert-plate protection truss, and the fine-adjustment slide rail is arranged on the main frame beam.

As a further technical solution, the top of the main frame beam is fixedly provided with an operating room, and the bottom of the main frame beam is provided with a hydraulic support device.

In the second aspect, the present invention also provides a construction method of the above-mentioned static pressure type flexible vibration-isolation airbag inserting machine, comprising the following steps:

Move the plug-in machine to the starting operation point, and press the plug-in board together with the steel plate into the ground during the first construction;

Send the head end of the airbag bag into the airbag conveying device, and the elastic expansion device automatically adjusts the distance between the active conveying roller and the sliding driven roller according to the thickness of the passing airbag;

The insert plate is lifted, and the airbag is sent into the insert plate cavity at the same time, the insert plate is lifted, and the airbag bag leaks out of the entire steel plate area to stop conveying;

Insert the airbag bagged steel plate area into the steel plate, the airbag conveying device is reversed, and the steel plate is covered at the bottom of the inserting plate; the static pressure inserting plate hoisting device lifts the inserting plate, and the airbag is left in the soil cavity due to the barrier of the steel plate; the airbag quickly Inflate, cut along the cutting area of the airbag bag, repeat the above steps until the construction is completed.

The above-mentioned beneficial effects of the present invention are as follows:

In the air bag inserting machine of the present invention, the lower side of the inserting plate main body is provided with an up and down closed inserting plate flare, which can form a cavity with a certain width after the soil is pulled out, and the next air bag can be inflated with the previous air bag when it is inserted into the soil. Keep a certain safe distance from the airbag to prevent the inserting board from piercing the airbag; fold the two sides of the airbag, stretch the two sides after inflation, and fit each other, which can realize continuous operation and seamless connection between the airbags.

In the airbag inserting machine of the present invention, the relative distance between the sliding driven roller and the driving conveying roller is zero, and there is a certain pre-pressure. When the airbag passes through the airbag conveying device, the thickness becomes larger, and the springs on both sides of the sliding driven roller are compressed. , the sliding rod slides relative to the shell, and the relative distance between the sliding driven roller and the driving conveying roller becomes larger. Through the elastic expansion device, the airbag conveying device can adjust the distance according to the thickness of the passing material.

In the airbag inserting machine of the present invention, the inserting plate is driven by the static pressure inserting plate hoisting device and can be directly inserted into the ground, so as to avoid damage to the foundation or the air bag due to vibration, and has low noise and good system stability.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention.

Fig. 1 is a side view of the vibration isolation airbag plugging machine of the present invention;

Fig. 2 is a schematic diagram of the structure of the plugboard of the present invention;

Figure 3a is a schematic front view of the airbag delivery device of the present invention;

Figure 3b is a schematic side view of the airbag delivery device of the present invention;

4 is a schematic cross-sectional view of the airbag delivery device of the present invention;

Fig. 5 is a schematic diagram of the structure of the airbag of the present invention;

In the figure: The distance or size between each part is exaggerated to show the position of each part, and the schematic diagram is for illustration only;

Among them, 101 hydraulic travel device, 102 hydraulic support device, 103 fine-tuning slide rail, 104 operating room, 105 hydraulic motor device, 106 diesel generator set, 107 static pressure plate hoisting device, 108 plate, 109 airbag lifting device;

201 Expansion board expansion, 202 Main body of the board, 203 Airbag delivery device;

301 motor, 302 reducer, 303 active conveying roller, 304 sliding driven roller, 305 elastic expansion device;

401 shaft coupling, 402 shell, 403 spring, 404 sliding rod, 405 bearing, 406 shaft rod, 407 rubber covering layer.

Detailed ways

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

In a typical implementation of the present invention, as shown in Figure 1, a static pressure type flexible vibration isolation airbag inserting machine is proposed, which includes a hydraulic traveling device 101 installed on the main frame beam, a hydraulic supporting device 102, Fine-tuning slide rail 103, operating room 104, hydraulic motor device 105, diesel generator set 106, and static pressure plate hoisting device 107 located below the plate protection truss, internal plate 108 and airbag lifting device 109 above .

Among them, the hydraulic traveling device 101 is fixed on the bottom of the main frame beam, and is a hydraulically driven track wheel system, which can realize the overall translation and rotation of the equipment.

The hydraulic support device 102 is fixed on the bottom of the main frame beam and consists of a telescopic beam and a hydraulic cylinder support leg. The hydraulic cylinder support leg is arranged at the bottom of the telescopic beam. In this embodiment, four support legs are provided, and the four support legs can be adjusted separately. After the hydraulic support device is leveled, the entire equipment including the crawler is suspended in the air.

The fine-tuning slide rail 103 is arranged on the main frame beam, and the inserting plate 108 is slidingly connected with the fine-tuning slide rail 103 through the inserting plate protection truss. After leveling, the small-scale adjustment of the inserting plate along the inserting plate construction direction can be realized. The adjustment distance range is 0-40cm.

The operating room 104 integrates all control systems and control switches related to the working surface visualization system, equipment leveling system, equipment traveling system, and equipment operation.

The hydraulic motor device 105 provides a power source for all hydraulic movement units of the equipment; the diesel generator set 106 provides electric energy for the hydraulic motor device 105 .

The inserting plate is pressed into the soil by static pressure. The static pressure plate hoisting device 107 includes a motor, a reducer, a gear and a chain, and is located inside the plate protection truss, and is symmetrically distributed on both sides of the plate. The motor is connected to the driving gear through the reducer, and the driving gear is connected to the driven gear through the chain. The static pressure plate hoisting device can lift and press down the plate. The static pressure plate hoisting device adopts the existing technology. I won't repeat them here. In this embodiment, the static pressure plate hoisting device is driven by hydraulic pressure, so as to avoid the damaging effect of vibration on the foundation or the air bag.

The flashboard 108 consists of a flashboard main body 202 with upper and lower openings, a flashboard flare 201 and an air bag delivery device 203. The bottom side of the flashboard main body 202 is provided with a top and bottom closed flashboard flare 201; the airbag delivery device 203 is fixed on the flashboard main body On the upper side of the 202, a visual camera is installed on the top of the main body of the plug-in board, which can provide real-time feedback on the position of the plug-in point. The depth of the insertion plate into the soil is about 5-7m is the best.

The function of the expansion of the board is to ensure that the board will not damage the last inflated air bag during the construction of the next board. Because the cavity after the soil expansion is the maximum construction distance between the insert plate and the air bag.

The airbag conveying device 203 is fixed on the side wall opening of the inserting board or the top opening of the inserting board, and is composed of a motor 301 , a reducer 302 , an active conveying roller 303 , a sliding driven roller 304 and an elastic telescopic device 305 . When the airbag conveying device is installed on the top port of the flashboard, the airbag is sent into the inner cavity of the main body of the flashboard through the top port of the flashboard between the active conveying roller and the sliding driven roller; The side wall is provided with an opening corresponding to the position of the airbag conveying device, and the airbag is sent into the inner cavity of the main body of the inserting plate through the opening in the side wall of the inserting plate between the driving conveying roller and the sliding driven roller.

The driving conveying roller 303 and the sliding driven roller 304 are arranged side by side, and both ends of the shaft rod 406 are wrapped with a rubber coating layer 407 to form the two rollers.

One end of the shaft of the active conveying roller 303 is connected with the speed reducer 302 through a coupling 401; the two ends of the sliding driven roller 304 are connected with the elastic expansion device 305, which can be displaced with the thickness of the airbag; the elastic expansion device 305 is composed of a casing 402, a spring 403 and sliding rod 404, the bottom of the shell 402 is connected with the main body 202 of the flashboard, the upper part has a hole for the sliding rod 404 to pass through, and is in clearance fit with the sliding rod 404, the spring 403 is set on the sliding rod 404, and the driving conveying roller 303 and The pressing force between the sliding driven rollers 304 is adjusted by the spring 403 .

A bearing 405 is arranged between the shaft of the driving conveying roller 303 and the coupling, and the bearing of the sliding driven roller 304 is located inside the rubber covering layer 407 to ensure that the center can rotate and both sides can slide.

The airbag lifting device 109 includes a lifting device consisting of an independent motor, a reducer and a cable winder located above the plate protection truss, and the lifting device can use the existing technology to lift the airbag.

The outside of the airbag is covered with bagging. In order to realize continuous construction or continuous operation of multiple airbags, the bagging area, steel plate area and cutting area are respectively set up for the bagging. The two ends of the airbag need to be folded and transported through folding. After inflation, the two sides are stretched and fit each other to achieve seamless docking. The thickness of the airbag after inflation is 100-150mm is the best.

The airbag inserting machine also includes an independent inflation compression pump and exhaust vacuum pump for rapid inflation and deflation of the airbag, a levelness measuring instrument for adjusting the levelness of the main frame beam, and a laser position indicator for indicating the position of the inserting point of the inserting plate and visualization cameras.

In a specific embodiment, the length*width of the bottom opening of the plug board 108 is 800*120mm, and the total height is 9000mm; The expansion board expansion 201 expands the soil mass on one side into a cavity with a width of 100mm, and the side of the expansion expansion opening 201 of the insertion board is an unconstructed area. The actual plug-in board 108 can be inserted into the ground at a height of 7000mm. The outer bag of the airbag is divided into airbag area, steel plate area and cutting area by sutures. As shown in Figure 5, the size of the airbag after inflation is 700*150*7000mm, and the airbag is folded from both sides after vacuuming. Velcro is provided on the outside of the bag, the folded size is 570*30*7000mm, and the thickness of the air nozzle is about 80mm. According to the soil characteristics of the operation area, the vibration isolation distance is set as a vibration isolation belt with a width of 5m and a depth of 7m.

In another typical embodiment of the present invention, a construction method of a static-pressure flexible vibration-isolation airbag insertion machine is proposed, which is realized based on the above-mentioned static-pressure flexible vibration-isolation airbag insertion machine and its insertion structure and airbag, Specific steps are as follows:

1) Select the initial operating point where the airbag needs to be inserted, adjust the hydraulic support device 102 to the level of the main frame beam, place the steel plate, press the insertion plate together with the steel plate into the ground, and the airbag delivery device 203 is basically at the ground position;

2) Send the head end of the airbag bag into the airbag conveying device, lift the inserting plate, and send the airbag into the inserting plate cavity at the same time, lift the inserting plate to stop at the bottom 1 meter from the ground, and the airbag covering leaks out of the entire steel plate area stop delivery;

3) Insert the steel plate area of the airbag bag into the steel plate, wherein the steel plate is slightly larger than the outer diameter of the inserting plate, the airbag delivery device is reversed, and the steel plate covers the bottom opening of the inserting plate;

4) The plug-in machine advances to a suitable position, re-adjusts the support device to the level of the main frame beam, fine-tunes the position of the insertion point by using the fine-tuning slide rail, and re-inserts the plug-in board into the ground with the static-pressure plug-in hoisting device;

5) The static pressure plate hoisting device lifts the plate, and the air bag is left in the soil cavity due to the barrier of the steel plate; the plate lifts to a place 1 meter above the ground and stops, and the air bag bag leaks out of the entire steel plate area to stop conveying ;

6) The airbag is quickly inflated, cut along the cutting area of the airbag bag, and repeat steps 3)-6) until it reaches the designated area.

7) After the construction is completed, use a vacuum pump to evacuate the airbag. After completion, use the airbag lifting device to lift the airbag for manual storage and arrangement. It is bagged and rewound later, and reused.

During the construction process, the position of the insertion point of the inserting plate is roughly positioned by the hydraulic travel device, and the fine positioning after leveling is carried out by the fine-tuning slide rail.

The specific implementation process is:

1. First, start the diesel generator set 106 and the hydraulic motor device 105. After the equipment self-inspection is completed, drive the hydraulic traveling device 101 to the selected initial operating point. The operator adjusts the four supports of the hydraulic support device 102 in the operating room 104 The legs adjust the main frame beam to the level, and the level error of the front, rear and left and right is required not to exceed ±0.5°, and the main body of the equipment is suspended in the air at this time. In the operating room 104, open the laser position indicator and the visual camera above the insert board 108, adjust the fine-tuning slide rail 103, and align the insert board socket with the insertion point.

2. During the first construction, there is no air bag inside the cavity of the insert plate 108, so a steel plate needs to be placed separately, the static pressure insert plate hoisting device 107 is activated, the insert plate 108 and the steel plate are pressed into the ground, and the interior of the insert plate 108 is placed into the earth and rocks . At this time, the airbag delivery device 203 is about 1 m away from the ground. Send the head end of the airbag bag between the active conveying roller and the sliding driven roller of the airbag conveying device 203, start the motor 301, the reducer 302 drives the active conveying roller 303 to rotate forward through the coupling 401, and the airbag passes through the top port of the inserting plate Or the cardboard side wall opening is fed into the cardboard 108 . Simultaneously, the static pressure type plate hoisting device 107 reverses, the plate 108 is lifted to a place where the bottom is 1 meter above the ground and stops, and the motor 301 in the steel plate area where the airbag bag leaks out is stopped, and the first steel plate is left on the ground at this moment. body interior.

3. The relative distance between the sliding driven roller 304 and the driving conveying roller 303 is zero, and there is a certain pre-pressure. When the airbag passes through the airbag conveying device 203, the thickness becomes larger, the springs 403 on both sides of the sliding driven roller 304 are compressed, the sliding rod 404 slides relative to the housing 402, the relative distance between the sliding driven roller 304 and the driving conveying roller 303 becomes larger, and the elasticity stretches The device 305 can automatically adjust the distance according to the thickness of the passing material, and the spring 403 is set here with a stroke of 150mm. The covering layer 407 is arranged at both ends of the two rollers, and the hollow area in the middle is to protect the airbag nozzle from being crushed and damaged. The position of the bearing 405 of the sliding driven roller 304 and the driving conveying roller 303 is different, and the position of the shaft rod 406 and the coating layer 407 of the driving conveying roller 303 is fixed to ensure the power transmission of the motor 301; the bearing 405 of the sliding driven roller 304 is located at the The inside of the layer 407 is guaranteed to be rotatable in the middle and slideable on both sides.

4. Insert the airbag bagging steel plate into the steel plate, where the steel plate is slightly larger than the outer diameter of the insertion plate, with a size of 820*140mm and a thickness of 5mm. The motor 301 of the airbag conveying device 203 is reversed, and the steel plate is covered on the bottom opening of the inserting plate. The four supporting legs of the hydraulic supporting device 102 are retracted in the operating room 104, and the hydraulic traveling device 101 is driven to reach the next working point. Re-adjust the hydraulic support device 102 to the level of the main frame beam, use the fine-tuning slide rail 103 to fine-tune the position of the insertion point, and the static-pressure inserting plate hoisting device 107 reinserts the inserting plate 108 together with the airbag into the ground.

5. Start the static pressure inserting plate hoisting device 107 to lift the inserting plate 108, the air bag is blocked by the steel plate, together with the bagging is left in the soil cavity; the inserting plate 108 is lifted to stop at the bottom 1 meter from the ground, and the air bag is bagged Leak out next steel plate district motor 301 and stop working. Use the inflatable compression pump to inflate the airbag quickly. After the airbag is inflated, it expands, breaks away the bagging and fastening, and restores the original size. Because the thickness is less than 150mm, the sides are slightly extended and the soil on both sides is compressed. Cut along the cutting area of the airbag sleeve.

6. The way to determine the position of the new insertion point is: insert the outer wall of the insert plate 108 on the other side of the expansion plate 201, and insert it at a distance of about 50mm from the inflatable airbag. After the airbag is inflated, one side can be stretched by about 60-70mm, and the two airbags are compressed. . Repeat the airbag insertion step until the designated area is reached, and cut off the airbag sleeve.

7) After the construction is completed, use a vacuum pump to evacuate the airbag. After the completion, use the airbag lifting device 109 to lift the airbag together with the bagging. The airbag and the bagging are connected by a string. If the bagging is damaged, the string can be broken, and the airbag is lifted separately for manual storage and arrangement. Bagged and rolled for repeated use. After all the vibration isolation construction is completed, backfill and pour the cavity in the construction area.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A static pressure type flexible vibration isolation air bag plate inserting machine is characterized by comprising an inserting plate, wherein static pressure type inserting plate hoisting devices are arranged on two sides of the inserting plate; the air bag conveying device comprises a driving conveying roller and a sliding driven roller which are arranged in parallel, the driving conveying roller is connected with a power device, two ends of the sliding driven roller are connected with an elastic telescopic device to adjust the distance between the driving conveying roller and the sliding driven roller, and the air bag is conveyed into an inner cavity of the plug board main body from the space between the driving conveying roller and the sliding driven roller; and the lower side part of the inserting plate main body is provided with an inserting plate flaring which is sealed up and down.

2. The plate inserting machine of claim 1, wherein the elastic expansion device comprises a housing, the bottom of the housing is connected with the plate inserting body, the upper part of the housing is provided with a hole for a sliding rod to pass through, a spring is sleeved on the sliding rod, and the pressing force between the driving conveying roller and the sliding driven roller is adjusted by the spring.

3. The plate inserting machine of the static pressure type flexible vibration isolation air bag according to claim 1, wherein the driving conveying roller comprises a first shaft rod, and two ends of the first shaft rod are wrapped with a first wrapping rubber layer; the sliding driven roller comprises a second shaft lever, and two ends of the second shaft lever are wrapped with second wrapping glue layers.

4. The plate inserting machine of claim 3, wherein the first bearing is disposed on the outer periphery of the first shaft of the driving feed roller, and the bearing of the sliding driven roller is disposed inside the second rubber coating layer.

5. The plate inserting machine of claim 1, wherein the upper side of the plate inserting body is provided with a side wall opening, and the outer side of the air bag is wrapped with a bag, and the bag comprises an air bag area, a steel plate area and a cutting area which are arranged in sequence.

6. The plate inserting machine for static pressure type flexible vibration isolating air bags according to claim 1, wherein the two sides of the air bags are folded, the two sides of the air bags are extended after being inflated, and the adjacent air bags are jointed with each other to be in seamless butt joint.

7. The plate inserting machine of the static pressure type flexible vibration isolation air bag as claimed in claim 1, wherein an air bag hoisting device is arranged above the inserting plate, and a visual camera is arranged at the top of the inserting plate main body.

8. The plate inserting machine of the static pressure type flexible vibration isolation air bag as claimed in claim 1, wherein the plate inserting machine is slidably connected with the fine adjustment slide rail through a plate inserting protection truss, and the fine adjustment slide rail is arranged on a main frame beam.

9. The plate inserting machine of claim 8, wherein the top of the main frame beam is fixedly provided with an operation chamber, and the bottom of the main frame beam is provided with a hydraulic support device.

10. The construction method of the plate inserting machine of the static pressure type flexible vibration isolation air bag according to any one of the claims 1 to 9, characterized by comprising the following steps:

moving the board inserting machine to an initial operation point, and pressing the inserting board and the steel plate into the ground during first construction;

the head end of the air bag sleeve is sent into an air bag conveying device, and the elastic expansion device automatically adjusts the distance between a driving conveying roller and a sliding driven roller according to the thickness of the air bag;

the inserting plate is lifted, the air bag is sent into the cavity of the inserting plate at the same time, the inserting plate is lifted, and the air bag is sleeved in the bag and leaks out of all steel plate areas to stop conveying;

inserting the steel plate area of the air bag into the steel plate, reversely rotating the air bag conveying device, and covering the steel plate on the bottom opening of the inserting plate; the static pressure type inserting plate hoisting device lifts the inserting plate, and the air bag is blocked by the steel plate and is left in the soil body cavity; and (4) rapidly inflating the air bag, cutting along a cutting area of the air bag sleeve bag, and repeating the steps until the construction is completed.

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