CN112302027A - Stake hole slip casting equipment of city underground pipe gallery steel sheet pile - Google Patents

Abstract

The invention relates to the field of pipe gallery construction equipment, in particular to pile hole grouting equipment for steel sheet piles of an urban underground pipe gallery, which comprises a rack, a first weighing mechanism, a second weighing mechanism, a vibrating mechanism, a first feeding mechanism, a second feeding mechanism, a blowing mechanism, a rigid communicating pipe and a flexible connecting pipe, wherein the rack is provided with a first weighing mechanism and a second weighing mechanism; the rack is arranged on the mobile equipment; the first weighing mechanism and the second weighing mechanism are both arranged on the rack; the vibration mechanism is arranged at the upper end of the first weighing mechanism; the first feeding mechanism is arranged at the upper end of the vibrating mechanism, and the discharge end is communicated with the rigid communicating pipe; the second feeding mechanism is arranged at the upper end of the second weighing mechanism, and the output end of the second feeding mechanism is communicated with the rigid communicating pipe; the blowing mechanism is communicated with the input end of the rigid communicating pipe; the rigid communicating pipe is arranged on the frame; the feed end of the flexible connecting pipe is connected with the output end of the rigid communicating pipe; this scheme has improved work efficiency, has reduced staff working strength, stable in structure, and control accuracy is high.

Description

Stake hole slip casting equipment of city underground pipe gallery steel sheet pile

Technical Field

The invention relates to the field of pipe gallery construction equipment, in particular to pile hole grouting equipment for steel sheet piles of an urban underground pipe gallery.

Background

The city underground comprehensive pipe gallery belongs to the category of pipeline systems for developing and utilizing underground spaces, and is a structure and an accessory facility thereof which are built in the city underground and used for accommodating two or more types of city municipal engineering pipelines.

The steel sheet pile is strutted because of having manger plate, retaining soil, fender sand effect, and the construction site is dry, adopts static pressure to plant the stake machine construction and can also solve the problem that the noise disturbs the people to a certain extent, and the steel sheet pile can have enough to meet the need the use simultaneously, consequently adopts steel sheet pile to strut the form often in city utility tunnel foundation ditch construction.

The soil backfilling quality of the foundation pit and the fertilizer groove of the urban comprehensive pipe gallery in the collapsible loess area can directly influence the quality of a subsequent municipal road, however, the steel plate pile supporting mode is adopted, the width of the foundation pit and the fertilizer groove are limited, the foundation pit and the fertilizer groove cannot be compacted by a large-scale compacting machine, the backfilled part of soil body can still be disturbed when the steel plate pile pulling-out construction is carried out after the fertilizer groove is backfilled, meanwhile, the peripheral protection work is not carried out on the backfilled part of soil body, so that surface water seeps along the pile hole after the steel plate pile pulling-out and the backfilled part of soil body, the subgrade is collapsed and subsided, and the backfilling.

Chinese patent CN201911258563.X discloses a foundation trench earthwork backfilling construction method of a steel sheet pile supporting structure of an urban comprehensive pipe gallery, which comprises the steps of pipe gallery foundation treatment, pipe gallery main structure construction, waterproof layer and waterproof protective layer construction, substrate cleaning, substrate compaction, fertilizer tank bottom lime soil backfilling, fertilizer tank plain soil backfilling, top plate pseudo-ginseng lime soil backfilling of the pipe gallery, top plate plain soil backfilling of the pipe gallery, sand blowing, compacting and grouting of pile holes, steel sheet pile pulling out and quality inspection, and is suitable for collapsible loess areas, drilling holes on the inner side of the steel sheet pile, embedding grouting pipes in the holes, blowing sand into the holes by using high pressure and carrying out compaction grouting treatment, after the concrete reaches certain strength, and then the steel sheet pile is pulled out under the condition that substances around the hole are not disturbed, and the automatic repairing layer automatically repairs the gap at the position of the steel sheet pile in the pulling-out process, so that the sinking amount of the backfill soil after the steel sheet pile is pulled out is effectively reduced.

In the hole sand blowing compaction grouting stage of the scheme, a grouting pipe needs to be drilled and buried in the inner side of the steel sheet pile, and pile hole sand blowing and compaction grouting treatment is carried out by utilizing high pressure. At present, the sand blowing and the compaction grouting of the existing equipment need different equipment to be carried out alternately, the efficiency is low, and the working pressure of workers is increased.

Disclosure of Invention

For solving above-mentioned technical problem, a stake hole slip casting equipment of city underground pipe gallery steel sheet pile is provided, the above-mentioned problem has been solved to this technical scheme, can realize blowing sand and two kinds of functions of densification slip casting, staff's working strength has been reduced, work efficiency has been improved, the grit and the thick liquids's of first feed mechanism and second feed mechanism output can real-time supervision through first weighing mechanism and second weighing mechanism, control accuracy is high, blow sand and the inside drying effect of rigidity communicating pipe are realized simultaneously through the mechanism of blowing, make equipment can stably last work.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:

pile hole grouting equipment for steel sheet piles of urban underground pipe galleries is characterized by comprising a rack, a first weighing mechanism, a second weighing mechanism, a vibrating mechanism, a first feeding mechanism, a second feeding mechanism, a blowing mechanism, a rigid communicating pipe and a flexible connecting pipe;

the rack is arranged on the mobile equipment;

the first weighing mechanism is arranged on the rack and used for weighing the first feeding mechanism;

the second weighing mechanism is arranged on the rack and used for weighing the second feeding mechanism;

the vibration mechanism is arranged at the upper end of the first weighing mechanism and is used for vibrating the first feeding mechanism;

the first feeding mechanism is arranged at the upper end of the vibrating mechanism, the discharge end is communicated with the rigid communicating pipe, and the connection position is close to the input end of the rigid communicating pipe and used for introducing sand into the rigid communicating pipe;

the second feeding mechanism is arranged at the upper end of the second weighing mechanism, the output end of the second feeding mechanism is communicated with the rigid communicating pipe, and the joint of the second feeding mechanism and the rigid communicating pipe is close to the output end of the rigid communicating pipe and used for introducing pressurized slurry into the rigid communicating pipe;

the blowing mechanism is communicated with the input end of the rigid communicating pipe and is used for introducing high-speed airflow into the rigid communicating pipe;

the rigid communicating pipe is arranged on the rack and used for guiding the sand and the slurry of the first feeding mechanism and the second feeding mechanism to enter the flexible connecting pipe;

and the feeding end of the flexible connecting pipe is connected with the output end of the rigid communicating pipe, and the discharging end of the flexible connecting pipe is connected with the outer end of the grouting pipe which is inserted into the steel sheet pile in advance.

Preferably, the first weighing mechanism comprises a bracket and an electronic scale;

the bracket is arranged on the rack and used for lifting the vibration mechanism and the first feeding mechanism upwards integrally;

the electronic scale is installed on the top end of the bracket, and the working end of the electronic scale is abutted to the bottom of the vibration mechanism and used for measuring the weight of the vibration mechanism and the weight of the first feeding mechanism.

Preferably, the vibration mechanism comprises a bottom plate, a guide rod, a vibration motor and a spring;

the bottom plate is arranged at the upper end of the first weighing mechanism;

the four guide rods are vertically arranged at the top end of the bottom plate, are in clearance fit with the bottom of the first feeding mechanism and are used for guiding the movement direction of the first feeding mechanism;

the vibration motor is fixed on the bottom plate, the top end of the vibration motor is fixedly connected with the bottom of the first feeding mechanism, and the vibration motor is used for driving the first feeding mechanism to vibrate along the axial direction of the guide rod;

and the spring is sleeved on the guide rod and is arranged between the bottom plate and the first feeding mechanism, so that the vibration of the first feeding mechanism is buffered.

Preferably, the first feeding mechanism comprises a first bearing plate, a sand box, a screw conveying assembly and a rotary driving assembly;

the first supporting plate is arranged at the upper end of the first weighing mechanism and used for supporting the sand box;

a sand box mounted on the first support plate for loading sand;

the top end of the screw conveying assembly is connected with the discharge end of the sand box, and the bottom end of the screw conveying assembly is connected with the rigid communicating pipe and used for pushing the sand into the rigid communicating pipe;

and one end of the rotary driving assembly is fixed on the first weighing mechanism, and the other end of the rotary driving assembly is connected with the screw conveying assembly and is used for driving the working end of the screw conveying assembly to rotate.

Preferably, the screw conveying assembly comprises a first connecting pipe, a second connecting pipe, a third connecting pipe, a first rotary connecting pipe, a second rotary connecting pipe, a hose and a screw;

the first connecting pipe, the second connecting pipe and the third connecting pipe are fixedly connected with the first weighing mechanism, and the first connecting pipe, the second connecting pipe and the third connecting pipe are sequentially arranged on the same axis from top to bottom;

two ends of the first rotary connecting pipe are coaxially and rotatably connected with the bottom of the first connecting pipe and the top of the second connecting pipe respectively and are subjected to sealing treatment, and the peripheral wall of the first rotary connecting pipe is fixedly connected with the output end of the rotary driving assembly;

two ends of the second rotary connecting pipe are coaxially and rotatably connected with the bottom of the second connecting pipe and the top of the third connecting pipe respectively and are subjected to sealing treatment;

the bottom end of the hose is connected with the top end of the first connecting pipe, and the top end of the hose is connected with the bottom end of the sand box, so that the influence of the vibration of the sand box on the screw conveying assembly is eliminated;

and two ends of the screw rod are fixedly connected with the first rotary connecting pipe and the second rotary connecting pipe respectively, and the periphery of the spiral part is attached to and rotates with the inner wall of the second connecting pipe in a working state.

Preferably, the rotary drive assembly comprises a gear ring, a gear and a first rotary driver;

the gear ring is sleeved on the outer wall of the input end of the screw conveying assembly and used for driving the working end of the screw conveying assembly to rotate;

the gear is meshed with the gear ring and used for driving the gear ring to rotate;

the first rotary driver is fixed on the first weighing mechanism, and the output shaft is fixedly connected with the gear and used for driving the gear to rotate.

Preferably, the second feeding mechanism comprises a second bearing plate, a slurry barrel, a stirring assembly and a slurry pump;

the second supporting plate is arranged at the top end of the second weighing mechanism and used for supporting the slurry barrel;

the slurry barrel is arranged on the second bearing plate and used for loading slurry;

the stirring assembly is rotatably arranged in the slurry barrel and is used for stirring the slurry in the slurry barrel;

and the feed end of the slurry pump is connected with the discharge end of the slurry barrel, and the discharge end of the slurry pump is connected with the rigid communicating pipe and used for pressurizing slurry led out from the slurry barrel.

Preferably, the stirring assembly comprises a stabilizing frame, a stirring shaft, a stirring blade and a second rotary driver;

the stabilizing frame is arranged at the top end inside the slurry barrel and used for stabilizing the rotating motion of the stirring shaft;

the stirring shaft is rotationally connected with the stabilizing frame and used for driving the stirring blades to rotate;

the stirring blades are arranged on the peripheral wall of the stirring shaft around the axis of the stirring shaft and are used for stirring the slurry;

and the second rotary driver is arranged at the top end of the slurry barrel, and the output shaft extends into the slurry barrel and is fixedly connected with the top end of the stirring shaft for driving the stirring blades to rotate.

Preferably, the blowing mechanism comprises a blower and a dust screen;

the air blower is fixed on the frame, and the output end of the air blower is connected with the input end of the rigid communicating pipe and used for introducing high-speed airflow into the rigid communicating pipe;

the dust screen, detachably installs the junction at air-blower and rigidity communicating pipe for prevent that the grit that first feed mechanism discharge end got into rigidity communicating pipe from pouring into the air-blower, improve the life of air-blower.

Preferably, the rigid communicating pipe is also provided with a supporting frame; two ends of the supporting frame are respectively fixedly connected with the frame and the rigid communicating pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. the two functions of sand blowing and compact grouting can be realized, the working strength of workers is reduced, the working efficiency is improved, and particularly, the connection states of the first feeding mechanism and the rigid communicating pipe and the second feeding mechanism are switched through control valves on the first feeding mechanism and the second feeding mechanism, so that the two working modes are conveniently switched;

2. the amount of sand and slurry output by the first feeding mechanism and the second feeding mechanism can be monitored in real time through the first weighing mechanism and the second weighing mechanism, and the control precision is high;

3. the sand blowing and rigid communicating pipe internal drying effects are simultaneously realized through the blowing mechanism, so that the equipment can stably and continuously work.

Drawings

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a second perspective view of the present invention;

FIG. 4 is a perspective view of the vibration mechanism of the present invention;

FIG. 5 is a front view of a first feed mechanism of the present invention;

FIG. 6 is a sectional view taken along line A-A of FIG. 5;

FIG. 7 is a partial perspective view of the present invention;

FIG. 8 is an exploded perspective view of FIG. 7;

FIG. 9 is a front view of a second feed mechanism of the present invention;

fig. 10 is a sectional view taken along line B-B of fig. 9.

The reference numbers in the figures are:

1-a frame;

2-a first weighing mechanism; 2 a-a bracket; 2 b-an electronic scale;

3-a second weighing mechanism;

4-a vibration mechanism; 4 a-a bottom plate; 4 b-a guide bar; 4 c-a vibration motor; 4 d-spring;

5-a first feeding mechanism; 5 a-a first support plate; 5 b-a sand box; 5 c-a screw conveying assembly; 5c1 — first connection tube; 5c 2-second connecting tube; 5c 3-third connecting tube; 5c4 — first rotating connecting tube; 5c 5-second rotating connecting tube; 5c 6-hose; 5c 7-screw; 5 d-a rotary drive assembly; 5d1 — ring gear; 5d 2-gear; 5d3 — first rotary drive;

6-a second feeding mechanism; 6 a-a second support plate; 6 b-a slurry barrel; 6 c-a stirring assembly; 6c 1-stabilizer; 6c 2-stirring shaft; 6c 3-stirring blade; 6c4 — second rotary drive; 6 d-a slurry pump;

7-a blowing mechanism; 7 a-a blower; 7 b-dust screen;

8-rigid communicating tube; 8 a-support frame.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1 and 2, a pile hole grouting device for steel sheet piles of an urban underground pipe gallery comprises a frame 1, a first weighing mechanism 2, a second weighing mechanism 3, a vibrating mechanism 4, a first feeding mechanism 5, a second feeding mechanism 6, a blowing mechanism 7, a rigid communicating pipe 8 and a flexible connecting pipe;

the rack 1 is arranged on the mobile equipment;

the first weighing mechanism 2 is arranged on the rack 1 and used for weighing the first feeding mechanism 5;

the second weighing mechanism 3 is arranged on the rack 1 and used for weighing the second feeding mechanism 6;

the vibration mechanism 4 is arranged at the upper end of the first weighing mechanism 2 and is used for vibrating the first feeding mechanism 5;

the first feeding mechanism 5 is arranged at the upper end of the vibrating mechanism 4, the discharge end is communicated with the rigid communicating pipe 8, and the connection position is close to the input end of the rigid communicating pipe 8 and used for guiding sand into the rigid communicating pipe 8;

the second feeding mechanism 6 is arranged at the upper end of the second weighing mechanism 3, the output end of the second feeding mechanism is communicated with the rigid communicating pipe 8, and the joint of the second feeding mechanism and the rigid communicating pipe 8 is close to the output end of the rigid communicating pipe 8 and used for introducing pressurized slurry into the rigid communicating pipe 8;

the blowing mechanism 7 is communicated with the input end of the rigid communicating pipe 8 and is used for introducing high-speed airflow into the rigid communicating pipe 8;

the rigid communicating pipe 8 is arranged on the frame 1 and used for guiding the sand and the slurry of the first feeding mechanism 5 and the second feeding mechanism 6 to enter the flexible connecting pipe;

and the feeding end of the flexible connecting pipe is connected with the output end of the rigid communicating pipe 8, and the discharging end of the flexible connecting pipe is connected with the outer end of the grouting pipe which is inserted into the steel sheet pile in advance.

The first weighing mechanism 2 and the second weighing mechanism 3 have the same structure and principle. The first weighing mechanism 2, the vibrating mechanism 4, the first feeding mechanism 5, the second feeding mechanism 6 and the blowing mechanism 7 are all electrically connected with the controller. The discharge ends of the first feeding mechanism 5 and the second feeding mechanism 6 are both provided with control valves for controlling opening and closing. The flexible connecting tube is not shown in the figure. The rigid communicating pipe 8 is provided with a one-way valve for preventing the slurry injected by the second feeding mechanism 6 from flowing back to the blowing mechanism 7. The output end of the rigid communicating pipe 8 is also provided with a control valve for controlling the on-off. The staff fixes the whole equipment on the mobile equipment, such as a trailer, through the frame 1. The preparation phase first injects the first and second feeding mechanisms 5 and 6 with sand and slurry, respectively. And then moving the equipment to a working area, and fixing the discharge end of the flexible connecting pipe to the outer end of a grouting pipe inserted into the steel sheet pile in advance. Before working, the discharging ends of the first feeding mechanism 5 and the second feeding mechanism 6 are both closed. When the automatic feeding device starts to work, the controller sends a signal to the first feeding mechanism 5, and the first feeding mechanism 5 opens the discharging end. The controller sends a signal to the vibration mechanism 4, and the vibration mechanism 4 vibrates the first feeding mechanism 5 in the vertical direction after receiving the signal, so that sand can smoothly fall into the rigid communicating pipe 8. The controller sends a signal to rigid communication tube 8 and rigid communication tube 8 controls the valve to open. The controller sends a signal to the blowing mechanism 7, the blowing mechanism 7 guides high-speed airflow into the input end of the rigid communicating pipe 8 after receiving the signal, sand falling into the rigid communicating pipe 8 is blown into the flexible connecting pipe through the rigid communicating pipe 8, and finally the sand is blown into the inner area of the steel sheet pile through the grouting pipe for backfilling. The mass change of the first feeding mechanism 5 is monitored through the first weighing mechanism 2, and the backfill volume can be calculated according to the density of the sand. After the backfilling is finished, the controller sends a signal to the first feeding mechanism 5, the first feeding mechanism 5 is closed after receiving the signal, and at the moment, the blowing mechanism 7 continues to work to ensure that all the sand in the rigid communicating pipe 8 is blown out. And in the sand blowing operation, the controller sends a signal to the second feeding mechanism 6, and the second feeding mechanism 6 stirs the slurry in advance. And when the sand blowing operation is finished, performing compaction grouting. The controller sends a signal to the blowing mechanism 7, and the blowing mechanism 7 is closed after receiving the signal. The controller sends a signal to the second feeding mechanism 6, the second feeding mechanism 6 guides the uniformly stirred and pressurized slurry into the rigid communicating pipe 8 after receiving the signal, and the slurry is compacted and injected through the rigid communicating pipe 8 and the flexible connecting pipe. The second feeding mechanism 6 is monitored for mass change through the second weighing mechanism 3, so that the grouting amount is accurately controlled. After grouting is completed, the staff separates the flexible connecting pipe from the grouting pipe, closes the second feeding mechanism 6, and air-dries the inside of the rigid communicating pipe 8 through the blowing mechanism 7, so as to improve the working effect of subsequent operation. The sand flowing at high speed along with the air flow during the sand blowing operation can also play a good cleaning effect on the inside of the rigid communicating pipe 8.

As shown in fig. 3, the first weighing mechanism 2 includes a bracket 2a and an electronic scale 2 b;

a bracket 2a installed on the frame 1 for lifting the vibration mechanism 4 and the first feeding mechanism 5 integrally upward;

and the electronic scale 2b is arranged at the top end of the bracket 2a, and the working end of the electronic scale is abutted against the bottom of the vibration mechanism 4 so as to measure the weight of the vibration mechanism 4 and the first feeding mechanism 5.

The electronic scale 2b is electrically connected to the controller. The electronic scale 2b weighs the whole of the vibration mechanism 4 and the first feeding mechanism 5, dynamically monitors the mass change of the first feeding mechanism 5 and sends a signal to the controller.

As shown in fig. 4, the vibration mechanism 4 includes a base plate 4a, a guide rod 4b, a vibration motor 4c, and a spring 4 d;

the bottom plate 4a is arranged at the upper end of the first weighing mechanism 2;

four guide rods 4b vertically installed at the top end of the bottom plate 4a, in clearance fit with the bottom of the first feeding mechanism 5, and used for guiding the moving direction of the first feeding mechanism 5;

the vibration motor 4c is fixed on the bottom plate 4a, the top end of the vibration motor is fixedly connected with the bottom of the first feeding mechanism 5, and the vibration motor is used for driving the first feeding mechanism 5 to vibrate along the axial direction of the guide rod 4 b;

and a spring 4d sleeved on the guide rod 4b and interposed between the bottom plate 4a and the first feeding mechanism 5 for buffering the vibration of the first feeding mechanism 5.

The vibration motor 4c is electrically connected to the controller. The controller sends a signal to the vibrating motor 4c, the vibrating motor 4c receives the signal and then drives the first feeding mechanism 5 to vibrate along the axial direction of the guide rod 4b by taking the bottom plate 4a as a support, and sand in the first feeding mechanism 5 can smoothly move downwards by utilizing the force generated by vibration. Reduce the influence that first feed mechanism 5 vibration produced other structures of equipment through spring 4d, improve equipment life still plays the effect of noise reduction.

As shown in fig. 5, the first feed mechanism 5 includes a first support plate 5a, a sand box 5b, a screw conveying assembly 5c, and a rotary drive assembly 5 d;

the first supporting plate 5a is arranged at the upper end of the first weighing mechanism 2 and is used for supporting the sand box 5 b;

a sand box 5b mounted on the first support plate 5a for loading sand;

the top end of the screw conveying assembly 5c is connected with the discharge end of the sand box 5b, and the bottom end of the screw conveying assembly is connected with the rigid communicating pipe 8 so as to push sand into the rigid communicating pipe 8;

and one end of the rotary driving component 5d is fixed on the first weighing mechanism 2, and the other end of the rotary driving component is connected with the screw conveying component 5c and used for driving the working end of the screw conveying component 5c to rotate.

The rotary drive assembly 5d is electrically connected to the controller. The worker loads sand through the inlet of the flask 5 b. The flask 5b is funnel-shaped so that when the flask 5b vibrates with the vibrating mechanism 4, the sand inside collects towards the bottom discharge end and falls into the screw conveyor assembly 5 c. The controller sends a signal to the rotary driving component 5d, and the rotary driving component 5d drives the working end of the screw conveying component 5c to rotate, so that driving force is provided for the sand, the sand is pushed into the rigid communication pipe 8, stable feeding of the sand is further guaranteed, and the first feeding mechanism 5 is prevented from being blocked.

As shown in fig. 6 to 8, the screw transfer assembly 5c includes a first connection pipe 5c1, a second connection pipe 5c2, a third connection pipe 5c3, a first rotary connection pipe 5c4, a second rotary connection pipe 5c5, a hose 5c6, and a screw 5c 7;

the first connecting pipe 5c1, the second connecting pipe 5c2 and the third connecting pipe 5c3 are all fixedly connected with the first weighing mechanism 2, and the first connecting pipe 5c1, the second connecting pipe 5c2 and the third connecting pipe 5c3 are sequentially arranged on the same axis from top to bottom;

two ends of the first rotary connecting pipe 5c4 are coaxially and rotatably connected with the bottom of the first connecting pipe 5c1 and the top of the second connecting pipe 5c2 respectively and are sealed, and the peripheral wall of the first rotary connecting pipe is fixedly connected with the output end of the rotary driving assembly 5 d;

two ends of the second rotary connecting pipe 5c5 are coaxially and rotatably connected with the bottom of the second connecting pipe 5c2 and the top of the third connecting pipe 5c3 respectively and are sealed;

a hose 5c6 having a bottom end connected to the top end of the first connecting pipe 5c1 and a top end connected to the bottom end of the flask 5b for eliminating the influence of the vibration of the flask 5b on the screw feed assembly 5 c;

the screw 5c7 has both ends fixedly connected to the first rotary connecting tube 5c4 and the second rotary connecting tube 5c5, respectively, and the outer periphery of the screw portion rotates in contact with the inner wall of the second connecting tube 5c2 in the operating state.

The rotary driving assembly 5d drives the first rotary connection pipe 5c4, the second rotary connection pipe 5c5 and the screw 5c7 to rotate synchronously through the first rotary connection pipe 5c4, and the first connection pipe 5c1 and the third connection pipe 5c3 only play a role of fixing and thus have a small axial length. The second connecting pipe 5c2 is the main working space of the screw conveyor assembly 5 c. The screw 5c7 pushes sand in the second connecting pipe 5c2 into the rigid connecting pipe 8. Since the flask 5b vibrates up and down with the vibrating mechanism 4 and the rigid communicating tube 8 is rigid, the flow of sand is guided by the hose 5c6 to eliminate the adverse effect of the vibration of the flask 5 b. Screw 5c7 is the working end of screw conveyor assembly 5 c.

As shown in fig. 6 and 7, the rotary drive assembly 5d includes a ring gear 5d1, a gear 5d2, and a first rotary driver 5d 3;

the gear ring 5d1 is sleeved on the outer wall of the input end of the screw conveying component 5c and used for driving the working end of the screw conveying component 5c to rotate;

a gear 5d2 engaged with the ring gear 5d1 to drive the ring gear 5d1 to rotate;

the first rotary driver 5d3 is fixed on the first weighing mechanism 2, and the output shaft is fixedly connected with the gear 5d2 and used for driving the gear 5d2 to rotate.

The first rotary driver 5d3 is a servo motor electrically connected to the controller. The controller sends a signal to the first rotary driver 5d3, and the first rotary driver 5d3 receives the signal and drives the first rotary driver 5d3 to rotate. The first rotary drive 5d3 in turn drives the ring gear 5d1 in rotation about the axis, the ring gear 5d1 driving in rotation the first rotary connection tube 5c4 of the screw conveyor assembly 5c, and finally the screw 5c 7.

As shown in fig. 9, the second feeding mechanism 6 includes a second support plate 6a, a slurry barrel 6b, a stirring assembly 6c and a slurry pump 6 d;

the second supporting plate 6a is arranged at the top end of the second weighing mechanism 3 and is used for supporting the slurry barrel 6 b;

a slurry bucket 6b installed on the second support plate 6a for loading slurry;

the stirring component 6c is rotatably arranged in the slurry barrel 6b and is used for stirring the slurry in the slurry barrel 6 b;

and a slurry pump 6d, wherein the feeding end is connected with the discharging end of the slurry barrel 6b, and the discharging end is connected with the rigid communicating pipe 8 and used for pressurizing slurry led out from the slurry barrel 6 b.

The mud pump 6d is electrically connected to the controller. The staff will be earlier with the thick liquids through the pan feeding mouth of thick liquids bucket 6b leading-in thick liquids bucket 6 b. The controller sends a signal to the stirring component 6c, and the stirring component 6c uniformly stirs the slurry in the slurry barrel 6b, and meanwhile, the slurry can have good fluidity, so that the slurry can be prevented from being solidified. The controller opens the control valve at the bottom of the slurry barrel 6b and then pressurizes the slurry in the slurry barrel 6b into the rigid communicating tube 8 through the stirring assembly 6c for compaction grouting.

As shown in fig. 10, the stirring assembly 6c includes a stabilizer 6c1, a stirring shaft 6c2, a stirring blade 6c3 and a second rotary driver 6c 4;

a stabilizing frame 6c1 installed at the top end of the inner part of the slurry barrel 6b for stabilizing the rotation of the stirring shaft 6c 2;

the stirring shaft 6c2 is rotationally connected with the stabilizing frame 6c1 and is used for driving the stirring blade 6c3 to rotate;

stirring blades 6c3 mounted on the peripheral wall of the stirring shaft 6c2 around the axis of the stirring shaft 6c2 for stirring the slurry;

and the second rotary driver 6c4 is installed at the top end of the slurry barrel 6b, and the output shaft extends into the slurry barrel 6b and is fixedly connected with the top end of the stirring shaft 6c2 so as to drive the stirring blade 6c3 to rotate.

The second rotary driver 6c4 is a servo motor electrically connected to the controller. The controller sends a signal to the second rotation driver 6c4, and the second rotation driver 6c4 receives the signal to drive the stirring shaft 6c2 to rotate. The stirring shaft 6c2 drives the stirring blade 6c3 to stir the slurry in the slurry barrel 6b, so that the slurry is uniformly stirred and has good fluidity. The rotation of the stirring shaft 6c2 is stabilized by a stabilizing frame 6c1, and a bearing is arranged at the joint, which is not shown in the figure.

As shown in fig. 3, the blowing mechanism 7 includes a blower 7a and a dust screen 7 b;

the blower 7a is fixed on the frame 1, and the output end of the blower is connected with the input end of the rigid communicating pipe 8 and used for introducing high-speed airflow into the rigid communicating pipe 8;

the dustproof net 7b is detachably mounted at the joint of the blower 7a and the rigid communication pipe 8 and used for preventing sand entering the rigid communication pipe 8 from the discharge end of the first feeding mechanism 5 from being poured into the blower 7a, and the service life of the blower 7a is prolonged.

The blower 7a is electrically connected to the controller. The dust-proof net 7b is periodically replaced to ensure the dust-proof effect. The controller introduces high-speed airflow into the rigid communicating pipe 8 through the blower 7a, and on one hand, the controller can be used for blowing sand, and on the other hand, the controller can be used for air-drying the rigid communicating pipe 8 and the flexible connecting pipe after grouting operation.

As shown in fig. 3, the rigid communicating pipe 8 is further provided with a support frame 8 a; two ends of the supporting frame 8a are respectively fixedly connected with the frame 1 and the rigid communicating pipe 8.

The rigid communicating pipe 8 is already fixed on the frame 1 by the connection with the first feeding mechanism 5, the second feeding mechanism 6 and the blowing mechanism 7. The stability of the structure of the rigid communicating pipe 8 can be further improved by additionally arranging the supporting frame 8 a. Avoiding unnecessary vibration of the sand and slurry as it passes through the rigid feed-through tubes 8.

The working principle of the invention is as follows:

the device realizes the functions of the invention through the following steps, thereby solving the technical problems provided by the invention:

firstly, the whole equipment is fixed on mobile equipment, such as a trailer, by a worker through a frame 1. The preparation phase first injects the first and second feeding mechanisms 5 and 6 with sand and slurry, respectively. And then moving the equipment to a working area, and fixing the discharge end of the flexible connecting pipe to the outer end of a grouting pipe inserted into the steel sheet pile in advance. Before working, the discharging ends of the first feeding mechanism 5 and the second feeding mechanism 6 are both closed.

And step two, when the work is started, the controller sends a signal to the first feeding mechanism 5, and the first feeding mechanism 5 opens the discharging end.

And step three, the controller sends a signal to the vibration mechanism 4, and the vibration mechanism 4 vibrates the first feeding mechanism 5 in the vertical direction after receiving the signal, so that sand can be ensured to smoothly fall into the rigid communicating pipe 8.

And step four, the controller sends a signal to the rigid communicating pipe 8, and the rigid communicating pipe 8 controls the valve to be opened.

And step five, the controller sends a signal to the blowing mechanism 7, the blowing mechanism 7 guides high-speed airflow into the input end of the rigid communicating pipe 8 after receiving the signal, sand falling into the rigid communicating pipe 8 is blown into the flexible connecting pipe through the rigid communicating pipe 8, and finally the sand is blown into the inner area of the steel sheet pile through the grouting pipe for backfilling. The mass change of the first feeding mechanism 5 is monitored through the first weighing mechanism 2, and the backfill volume can be calculated according to the density of the sand.

And step six, after the backfilling is finished, the controller sends a signal to the first feeding mechanism 5, the first feeding mechanism 5 is closed after receiving the signal, and at the moment, the blowing mechanism 7 continues to work to ensure that the sand in the rigid communicating pipe 8 is completely blown out.

And seventhly, while the sand blowing operation is carried out, the controller sends a signal to the second feeding mechanism 6, and the second feeding mechanism 6 stirs the slurry in advance. And when the sand blowing operation is finished, performing compaction grouting.

And step eight, the controller sends a signal to the blowing mechanism 7, and the blowing mechanism 7 is closed after receiving the signal.

And step nine, the controller sends a signal to the second feeding mechanism 6, the second feeding mechanism 6 guides the uniformly stirred and pressurized slurry into the rigid communicating pipe 8 after receiving the signal, and the slurry is compacted and injected through the rigid communicating pipe 8 and the flexible connecting pipe. The second feeding mechanism 6 is monitored for mass change through the second weighing mechanism 3, so that the grouting amount is accurately controlled.

Step ten, after grouting is completed, after the flexible connecting pipe is separated from the grouting pipe by a worker, the second feeding mechanism 6 is closed, and the interior of the rigid communicating pipe 8 is air-dried through the blowing mechanism 7, so that the working effect of subsequent operation is improved. The sand flowing at high speed along with the air flow during the sand blowing operation can also play a good cleaning effect on the inside of the rigid communicating pipe 8.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. Pile hole grouting equipment for steel sheet piles of urban underground pipe galleries is characterized by comprising a rack (1), a first weighing mechanism (2), a second weighing mechanism (3), a vibrating mechanism (4), a first feeding mechanism (5), a second feeding mechanism (6), a blowing mechanism (7), a rigid communicating pipe (8) and a flexible connecting pipe;

the rack (1) is arranged on the mobile equipment;

the first weighing mechanism (2) is arranged on the rack (1) and is used for weighing the first feeding mechanism (5);

the second weighing mechanism (3) is arranged on the rack (1) and is used for weighing the second feeding mechanism (6);

the vibration mechanism (4) is arranged at the upper end of the first weighing mechanism (2) and is used for vibrating the first feeding mechanism (5);

the first feeding mechanism (5) is arranged at the upper end of the vibrating mechanism (4), the discharge end is communicated with the rigid communicating pipe (8), and the connection position is close to the input end of the rigid communicating pipe (8) and used for guiding sand into the rigid communicating pipe (8);

the second feeding mechanism (6) is arranged at the upper end of the second weighing mechanism (3), the output end of the second feeding mechanism is communicated with the rigid communicating pipe (8), and the joint of the second feeding mechanism and the rigid communicating pipe is close to the output end of the rigid communicating pipe (8) and used for introducing pressurized slurry into the rigid communicating pipe (8);

the blowing mechanism (7) is communicated with the input end of the rigid communicating pipe (8) and is used for introducing high-speed airflow into the rigid communicating pipe (8);

the rigid communicating pipe (8) is arranged on the rack (1) and used for guiding sand and slurry of the first feeding mechanism (5) and the second feeding mechanism (6) to enter the flexible connecting pipe;

and the feeding end of the flexible connecting pipe is connected with the output end of the rigid communicating pipe (8), and the discharging end of the flexible connecting pipe is connected with the outer end of a grouting pipe which is inserted into the steel sheet pile in advance.

2. The pile hole grouting equipment for the steel sheet piles of the urban underground pipe gallery according to claim 1, wherein the first weighing mechanism (2) comprises a bracket (2a) and an electronic scale (2 b);

the bracket (2a) is arranged on the rack (1) and used for lifting the vibration mechanism (4) and the first feeding mechanism (5) upwards integrally;

and the electronic scale (2b) is arranged at the top end of the bracket (2a), and the working end of the electronic scale is abutted against the bottom of the vibration mechanism (4) and used for measuring the weight of the vibration mechanism (4) and the first feeding mechanism (5).

3. The pile hole grouting equipment for the steel sheet piles of the urban underground pipe gallery according to claim 1, wherein the vibration mechanism (4) comprises a bottom plate (4a), a guide rod (4b), a vibration motor (4c) and a spring (4 d);

the bottom plate (4a) is arranged at the upper end of the first weighing mechanism (2);

the four guide rods (4b) are vertically arranged at the top end of the bottom plate (4a), are in clearance fit with the bottom of the first feeding mechanism (5) and are used for guiding the movement direction of the first feeding mechanism (5);

the vibrating motor (4c) is fixed on the bottom plate (4a), the top end of the vibrating motor is fixedly connected with the bottom of the first feeding mechanism (5), and the vibrating motor is used for driving the first feeding mechanism (5) to vibrate along the axial direction of the guide rod (4 b);

and the spring (4d) is sleeved on the guide rod (4b) and is arranged between the bottom plate (4a) and the first feeding mechanism (5) to buffer the vibration of the first feeding mechanism (5).

4. The pile hole grouting equipment for the steel sheet piles of the urban underground pipe gallery according to claim 1, wherein the first feeding mechanism (5) comprises a first bearing plate (5a), a sand box (5b), a screw conveying assembly (5c) and a rotary driving assembly (5 d);

the first supporting plate (5a) is arranged at the upper end of the first weighing mechanism (2) and is used for supporting the sand box (5 b);

a sand box (5b) mounted on the first support plate (5a) for loading sand;

the top end of the screw rod conveying assembly (5c) is connected with the discharge end of the sand box (5b), and the bottom end of the screw rod conveying assembly is connected with the rigid communicating pipe (8) and used for pushing sand into the rigid communicating pipe (8);

and one end of the rotary driving component (5d) is fixed on the first weighing mechanism (2), and the other end of the rotary driving component is connected with the screw conveying component (5c) and used for driving the working end of the screw conveying component (5c) to rotate.

5. Pile hole grouting equipment for steel sheet piles of urban underground pipe galleries according to claim 4, characterized in that the screw conveying assembly (5c) comprises a first connecting pipe (5c1), a second connecting pipe (5c2), a third connecting pipe (5c3), a first rotary connecting pipe (5c4), a second rotary connecting pipe (5c5), a hose (5c6) and a screw (5c 7);

the first connecting pipe (5c1), the second connecting pipe (5c2) and the third connecting pipe (5c3) are fixedly connected with the first weighing mechanism (2), and the first connecting pipe (5c1), the second connecting pipe (5c2) and the third connecting pipe (5c3) are sequentially arranged on the same axis from top to bottom;

the two ends of the first rotary connecting pipe (5c4) are coaxially and rotatably connected with the bottom of the first connecting pipe (5c1) and the top of the second connecting pipe (5c2) respectively and are sealed, and the peripheral wall of the first rotary connecting pipe is fixedly connected with the output end of the rotary driving component (5 d);

the two ends of the second rotary connecting pipe (5c5) are coaxially and rotatably connected with the bottom of the second connecting pipe (5c2) and the top of the third connecting pipe (5c3) respectively and are sealed;

a hose (5c6) connected at the bottom end thereof to the top end of the first connecting pipe (5c1) and at the top end thereof to the bottom end of the flask (5b) for eliminating the influence of the vibration of the flask (5b) on the screw conveying assembly (5 c);

and two ends of the screw (5c7) are respectively fixedly connected with the first rotary connecting pipe (5c4) and the second rotary connecting pipe (5c5), and the periphery of the spiral part is attached to and rotates with the inner wall of the second connecting pipe (5c2) in the working state.

6. Pile hole grouting equipment for city underground pipe gallery steel sheet piles according to claim 4, characterized in that the rotary drive assembly (5d) comprises a gear ring (5d1), a gear (5d2) and a first rotary driver (5d 3);

the gear ring (5d1) is sleeved on the outer wall of the input end of the screw conveying component (5c) and used for driving the working end of the screw conveying component (5c) to rotate;

a gear (5d2) meshed with the gear ring (5d1) and used for driving the gear ring (5d1) to rotate;

the first rotary driver (5d3) is fixed on the first weighing mechanism (2), and the output shaft is fixedly connected with the gear (5d2) and used for driving the gear (5d2) to rotate.

7. The pile hole grouting equipment for the steel sheet piles of the urban underground pipe gallery according to claim 1, wherein the second feeding mechanism (6) comprises a second bearing plate (6a), a slurry barrel (6b), a stirring assembly (6c) and a slurry pump (6 d);

the second supporting plate (6a) is arranged at the top end of the second weighing mechanism (3) and is used for supporting the slurry barrel (6 b);

a slurry barrel (6b) mounted on the second support plate (6a) for loading slurry;

the stirring component (6c) is rotatably arranged in the slurry barrel (6b) and is used for stirring the slurry in the slurry barrel (6 b);

and the feed end of the slurry pump (6d) is connected with the discharge end of the slurry barrel (6b), and the discharge end of the slurry pump is connected with the rigid communicating pipe (8) and is used for pressurizing slurry led out from the slurry barrel (6 b).

8. The pile hole grouting equipment for the steel sheet piles of the urban underground pipe gallery according to claim 7, wherein the stirring assembly (6c) comprises a stabilizing frame (6c1), a stirring shaft (6c2), a stirring blade (6c3) and a second rotary driver (6c 4);

a stabilizing frame (6c1) installed at the top end of the inner part of the slurry barrel (6b) for stabilizing the rotation motion of the stirring shaft (6c 2);

the stirring shaft (6c2) is rotationally connected with the stabilizing frame (6c1) and is used for driving the stirring blade (6c3) to rotate;

stirring blades (6c3) mounted on the peripheral wall of the stirring shaft (6c2) around the axis of the stirring shaft (6c2) for stirring the slurry;

and the second rotary driver (6c4) is arranged at the top end of the slurry barrel (6b), and the output shaft extends into the slurry barrel (6b) and is fixedly connected with the top end of the stirring shaft (6c2) so as to drive the stirring blade (6c3) to rotate.

9. The pile hole grouting equipment for the steel sheet piles of the urban underground pipe gallery according to claim 1, wherein the blowing mechanism (7) comprises a blower (7a) and a dust screen (7 b);

the air blower (7a) is fixed on the rack (1), and the output end of the air blower is connected with the input end of the rigid communicating pipe (8) and used for introducing high-speed airflow into the rigid communicating pipe (8);

the dustproof net (7b) is detachably mounted at the joint of the air blower (7a) and the rigid communicating pipe (8) and used for preventing sand entering the rigid communicating pipe (8) from the discharge end of the first feeding mechanism (5) from being poured into the air blower (7a), and the service life of the air blower (7a) is prolonged.

10. The pile hole grouting equipment for the steel sheet piles of the urban underground pipe gallery according to claim 1, wherein the rigid communicating pipe (8) is further provided with a support frame (8 a); two ends of the supporting frame (8a) are respectively fixedly connected with the frame (1) and the rigid communicating pipe (8).

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