CN113668503A - Grouting device and grouting method for highway bridge construction - Google Patents
Grouting device and grouting method for highway bridge construction Download PDFInfo
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- CN113668503A CN113668503A CN202111002850.1A CN202111002850A CN113668503A CN 113668503 A CN113668503 A CN 113668503A CN 202111002850 A CN202111002850 A CN 202111002850A CN 113668503 A CN113668503 A CN 113668503A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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Abstract
The invention discloses a grouting device and a grouting method for highway bridge construction, and belongs to the technical field of highway bridge construction. The utility model provides a slip casting device and slip casting method for public road bridge roof beam construction, the on-line screen storage device comprises a base, the drilling rod outer wall is the annular equidistant a plurality of tooth posts that have set firmly for the position of gear, remove the seat outside cover and be equipped with the frame, it has set firmly two sliders to remove seat both sides outer wall and be symmetrical structure, the frame both sides have been seted up perpendicular groove for the position of slider medial extremity, compression spring has set firmly between slider bottom surface and the perpendicular bottom of groove face, it all is symmetrical structure rotation and is connected with two gyro wheels to remove seat both sides outer wall, the race has been seted up for the position of gyro wheel to the frame inner wall. The invention can easily insert the drill rod into the position of the crack or the hollowing, can help the working personnel to conveniently and quickly judge the injection amount of the cement mortar, improves the accuracy of the crack grouting filling work, enhances the grouting efficiency and has strong practicability.
Description
Technical Field
The invention relates to the technical field of highway bridge construction, in particular to a grouting device and a grouting method for highway bridge construction.
Background
In the process of road construction, a foundation with a proper size needs to be built, cracks or pores are easily generated in the rock-soil foundation, if these cracks or holes are not filled in time, the quality of the constructed road is affected, the safety of vehicles driving through the grouting device at the later period is extremely not facilitated, and most of the existing grouting methods are that after the crack and the hollowing are detected by workers, the hollow rod is inserted into the ground and extends to the inside of the crack or hollow drum part, then certain solidifiable slurry is injected into the crack or hollow drum of the rock-soil ground through the inside of the hollow rod to fill the crack or hollow drum, in the process, the hollow rod is usually inserted manually by workers, and if the construction area is located in an area with hard soil, the process of inserting the hollow bar is time-consuming and labor-consuming, and thus, an electric grouting device for road and bridge construction is required.
In the prior art, a rock bolt mechanism, a driving mechanism, a grouting mechanism and a propelling mechanism are arranged in CN112360505A, so that the integration of drilling, grouting anchoring and pre-tightening can be realized, but soil still can be drilled into a grouting channel along a grout outlet hole at a drill bit in the process that a rock bolt passes through a soil layer, if the hollowing position is deep, a large amount of soil can be gathered in the grouting channel to cause blockage, and grout cannot be smoothly filled into the hollowing or cracks; in addition, in patent CN211258495U, the slip casting pipe communicates with the inside rotary groove of seting up of drill bit and realizes slip casting after drilling, but slip casting pipe does not set up normal running fit's swivel and rotary groove with the junction of rotary groove on the drill bit, makes it have the drill bit and drives slip casting pipe follow rotation when rotating to make the slip casting pipe twine the drill bit and take place the risk of damage.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide a grouting device and a grouting method for highway bridge construction, which aim to solve the problems in the background technology.
2. Technical scheme
A grouting device and a grouting method for highway bridge construction comprise a base, wherein a supporting seat is arranged above the base, four supporting plates are fixedly arranged at four corners of the bottom surface of the supporting seat in a symmetrical structure, a threaded hole is formed in the left side of the top surface of the supporting seat, a drill rod is inserted in the threaded hole, an external thread is formed in the outer wall of the drill rod, the threaded hole is in threaded connection with the external thread, two drill cutters are fixedly arranged at the lower end of the drill rod and penetrate through the threaded hole to extend to the lower part in a symmetrical structure, a drill bit is fixedly arranged between the lower ends of the two drill cutters, a plurality of connecting rods are fixedly arranged at the top surface of the drill bit in an annular and equidistant manner, a positioning hole is formed in the top surface of the base relative to the position of the drill bit, a grouting cavity is formed in the drill rod in a penetrating manner, a plurality of transparent acrylic plates are linearly and equidistantly embedded in the vertical direction of the outer wall of the grouting cavity, a limiting ring is fixedly arranged at the lower end of the inner wall of the grouting cavity, a baffle is arranged above the limiting ring, an inserting column is coaxially and fixedly arranged in the middle of the top surface of the baffle, a fixed column is arranged above the inserting column, the outer wall of the fixed column is fixedly connected with the inner wall of the grouting cavity through a plurality of connecting plates which are annularly and equidistantly arranged, a column groove is formed in the middle of the bottom surface of the fixed column, sealing rings are sleeved in the middle of the outer wall of the baffle and the outer wall of the inserting column, sealing grooves are formed in the positions of the inner wall of the limiting ring and the inner wall of the column groove relative to the sealing rings, the baffle is in inserting fit with the inner part of the limiting ring, the inserting column is in inserting fit with the column groove, the sealing rings are in clamping fit with the sealing grooves, a push rod A is hinged in the middle of the top surface of the column groove, a push rod B is hinged at the lower end of the push rod A, the lower end of the push rod B is hinged with the top surface of the inserting column, a hydraulic rod is arranged between the push rod A and the push rod B, and the upper and lower ends of the hydraulic rod are respectively hinged with the rear wall of the push rod A and the rear wall of the push rod B, the upper end of the drill rod is coaxially and fixedly connected with a rotating seat, a metal hose is inserted in the middle of the rotating seat, the interior of the metal hose is communicated with a grouting cavity through the interior of the rotating seat, a moving seat is rotatably sleeved at the upper end of the outer wall of the drill rod, a servo motor is fixedly arranged on the left side of the top surface of the moving seat, the output end of the servo motor penetrates through the moving seat to extend to the lower part of the moving seat and is coaxially and fixedly connected with a gear, a plurality of tooth posts are fixedly arranged on the outer wall of the drill rod at equal intervals in an annular shape relative to the position of the gear, the gear is meshed with the tooth posts, an outer frame is sleeved on the outer side of the moving seat, the lower end of the outer frame is fixedly connected to the upper end of a supporting seat, two sliding blocks are fixedly arranged on the outer walls on two sides of the moving seat in a symmetrical structure, vertical grooves are formed in the positions of the inner side ends of the two sides of the outer frame relative to the sliding blocks, compression springs are fixedly arranged between the bottom surfaces of the sliding blocks and the bottom surfaces of the vertical grooves, two outer walls of the moving seat in a symmetrical structure are rotatably connected with two idler wheels, and the inner wall of the outer frame is provided with a wheel groove relative to the position of the roller.
Preferably, the drill cutters are of a spiral structure, the two drill cutters are located on the same axis with the drill rod, the drill bit is of an inverted cone structure, and the upper end of the connecting rod is fixedly connected with the edge of the bottom face of the drill rod.
Preferably, a circular ring is sleeved on the outer wall of the drill rod relative to the moving seat, a circular groove is formed in the moving seat relative to the circular ring, and the circular ring is rotatably connected with the circular groove.
Preferably, the rotating seat is of a hollow round platform structure, the outer wall of the metal hose is provided with a plurality of rotating rings in a linear equidistant manner relative to the rotating seat, the inner wall of the rotating seat is provided with a ring groove relative to the rotating rings, and the rotating rings are connected with the ring groove in a rotating manner.
Preferably, the top ring has been set firmly through the cylinder to removal seat top surface right-hand member, the metal collapsible tube right-hand member passes the top ring inside and extends to right side below and is connected with the grouting pump, grouting pump bottom surface and supporting seat top surface right side are connected fixedly.
Preferably, the gear is meshed with the tooth column, the inner part of the outer frame is in sliding contact with the outer wall of the moving seat, the inner side end of the sliding block is in sliding fit with the vertical groove, and the annular outer wall of the roller is in rolling contact with the roller groove.
Preferably, the support plate is of an inclined structure with a high inside and a low outside, and the lower end of the support plate is fixedly connected with the top surface of the base.
Preferably, the positions of the transparent acrylic plates and the positions of the external threads are staggered, the front walls of the transparent acrylic plates are of cambered surface structures with radian identical to that of the front walls of the drill rods, and observation grooves are formed in the front side and the rear side of the outer frame and in the positions corresponding to the drill rods.
A grouting method of a grouting apparatus for highway bridge construction, the method comprising:
s1, firstly, hollowing and crack detection is carried out on the highway foundation, when hollowing and cracks are found, the positioning holes of the device can correspond to the positions of the hollowing or the cracks, and then the servo motor and the grouting pump in the device are connected with an external power supply through leads;
s2, driving the gear to rotate by using the servo motor, driving the drill rod to rotate by the gear through the tooth column, moving the drill rod downwards along the threaded hole under the threaded connection of the external thread on the outer wall of the drill rod and the threaded hole, and rotating the drill rod at the same time, wherein the drill bit penetrates through the positioning hole and breaks the soil to drive the drill rod to drill into the soil layer;
s3, when the depth to be drilled reaches the expected measurement position of the hollow bulge or crack, a worker needs to operate the hydraulic rod to shorten, so that the sealing ring on the outer wall of the baffle is separated from the sealing groove on the inner wall of the limiting ring, the inserted column is inserted into the column groove, the sealing ring on the outer wall of the inserted column is clamped with the sealing groove on the inner wall of the column groove, then cement mortar can be injected into the grouting cavity by using a grouting pump, and the cement mortar can penetrate through the grouting cavity and is finally injected into the crack or hollow bulge along the lower side opening end of the grouting cavity;
s4, in the injection process, workers can observe the conditions inside the grouting cavity through a plurality of transparent acrylic plates embedded on the outer wall of the drill rod through the observation groove of the outer frame, when the top surface of cement mortar can be observed through the transparent acrylic plates, the injection is stopped, the drill rod is pulled out by utilizing the reverse rotation of the servo motor, and the grouting filling work of cracks or hollows existing in the highway foundation is completed.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. the drilling machine is provided with a drilling rod, a drilling cutter and a drilling bit, wherein the gear is driven to rotate by a servo motor, the tooth column is driven to further drive the drilling rod to rotate in the gear rotating process, the drilling rod moves downwards along the threaded hole under the threaded connection of external threads on the outer wall of the drilling rod and the threaded hole and rotates simultaneously, at the moment, the drilling bit penetrates through the positioning hole and breaks soil to drive the drilling rod to drill into a soil layer, soil on the inner wall of a drilled hole can be easily broken and pulled to two sides in the rotation of the drilling cutter, and the structure also ensures that excessive soil cannot be accumulated between the drilling cutters to avoid the blockage of gaps by the soil, so that the drilling rod can be easily inserted into the positions of cracks or hollows.
2. The invention is provided with the baffle, the fixed column and the hydraulic rod, the baffle is inserted in the limiting ring in the rotating and descending process of the drill rod, the sealing structure can be formed at the lower side opening end of the grouting cavity through the insertion fit between the outer sealing ring of the baffle and the sealing groove of the inner wall of the limiting ring, so that no soil can be drilled into the drilling rod from the lower side opening end of the grouting cavity when the drill rod drills downwards, the problem of blockage caused by filling excessive soil into the grouting cavity is avoided, the servo motor can be stopped after the drilling rod drills to a proper position, then the hydraulic rod is controlled to be shortened, the included angle between the push rod A and the push rod B is reduced along with the shortening of the hydraulic rod in the process of shortening the hydraulic rod, the baffle is lifted, meanwhile, the inserted column can be inserted into the column groove, the sealing ring outside the inserted column is clamped with the sealing groove in the column groove, and cement mortar can not be poured into the column groove to cause the damage of the hydraulic rod in the grouting process through the structure, the protection to the hydraulic stem is improved, and the service life of the device can be effectively prolonged.
3. According to the invention, the plurality of transparent acrylic plates are embedded in the front wall of the grouting cavity at equal intervals in a linear manner, so that workers can observe the condition inside the grouting cavity at a glance, and can accurately grasp the position of the top surface of cement mortar in the grouting process, thereby conveniently and quickly judging the grouting amount of the cement mortar, avoiding that the filling effect cannot be achieved due to too little grouting, avoiding waste caused by too much grouting and improving the accuracy of crack grouting and filling work.
4. Two sliding blocks and rollers are symmetrically arranged on two sides of the moving seat, the inner side ends of the sliding blocks are in sliding fit with the vertical groove, a compression spring is fixedly arranged between the bottom surface of each sliding block and the bottom surface of the vertical groove, when the moving seat is positioned at the uppermost position, the gravity of part of the moving seat can be shared by the elasticity of the compression spring, the trouble caused by the fact that the moving seat automatically descends to grouting work due to the weight of a drill rod is avoided, the rollers are rotatably connected to the outer walls of the two sides of the moving seat in a symmetrical structure, friction force generated by the moving seat and the inner wall of the outer frame in descending and ascending processes can be reduced through rolling contact of the rollers and the roller grooves, the load of a servo motor is effectively reduced, the device can operate more stably, and the efficiency of grouting work is greatly improved.
5. The drill rod is provided with the rotating seat, and the inner wall of the rotating seat is rotatably connected with the outer wall of the metal hose through the plurality of rotating rings which are fixedly arranged at equal intervals in a linear mode, so that the sealing performance of the joint of the rotating seat and the metal hose is guaranteed through the labyrinth waterproof structure, the metal hose is not influenced by the rotation of the drill rod, and the metal hose is prevented from rotating along with the rotation of the metal hose to cause damage.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic cross-sectional view of the top surface of the outer frame of the present invention;
FIG. 4 is a schematic view of the drill stem and grouting pump of the present invention;
FIG. 5 is a schematic view of the movable base and the drill rod of the present invention;
FIG. 6 is a cross-sectional structural view of a drill pipe of the present invention;
fig. 7 is a schematic cross-sectional structure view of the fixing post of the present invention.
The reference numbers in the figures illustrate: 1. a base; 2. a supporting seat; 3. a support plate; 4. a threaded hole; 5. a drill stem; 6. an external thread; 7. drilling a cutter; 8. a drill bit; 9. a connecting rod; 10. positioning holes; 11. a grouting cavity; 12. a transparent acrylic sheet; 13. a limiting ring; 14. a baffle plate; 15. inserting a column; 16. fixing a column; 17. a connecting plate; 18. a column groove; 19. a seal ring; 20. a sealing groove; 21. a push rod A; 22. a push rod B; 23. a hydraulic lever; 24. a rotating seat; 25. a metal hose; 26. rotating the ring; 27. a ring groove; 28. a movable seat; 29. a circular ring; 30. a circular groove; 31. a cylinder; 32. a top ring; 33. grouting pump; 34. a servo motor; 35. a gear; 36. a tooth post; 37. an outer frame; 38. a slider; 39. a vertical slot; 40. a compression spring; 41. a roller; 42. a wheel groove.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-7, the present invention provides a technical solution:
a grouting device and a grouting method for highway bridge construction comprise a base 1, a supporting seat 2 is arranged above the base 1, four support plates 3 are fixedly arranged at four corners of the bottom surface of the supporting seat 2 in a symmetrical structure, a threaded hole 4 is formed in the left side of the top surface of the supporting seat 2, a drill rod 5 is inserted into the threaded hole 4, an external thread 6 is formed in the outer wall of the drill rod 5, the threaded hole 4 is in threaded connection with the external thread 6, the lower end of the drill rod 5 penetrates through the threaded hole 4 to extend to the lower part and is fixedly provided with two drill cutters 7 in a symmetrical structure, a drill bit 8 is fixedly arranged between the lower ends of the two drill cutters 7, a plurality of connecting rods 9 are fixedly arranged on the top surface of the drill bit 8 in an annular and equidistant manner, a positioning hole 10 is formed in the top surface of the base 1 relative to the drill bit 8, a grouting cavity 11 is formed in the inner part of the drill rod 5 in a penetrating manner, a plurality of transparent acrylic plates 12 are embedded in a linear and equidistant manner in the vertical direction on the outer wall of the grouting cavity 11, a limiting ring 13 is fixedly arranged at the lower end of the inner wall of the grouting cavity 11, a baffle 14 is arranged above the limit ring 13, an inserting column 15 is coaxially and fixedly arranged in the middle of the top surface of the baffle 14, a fixing column 16 is arranged above the inserting column 15, the outer wall of the fixing column 16 is fixedly connected with the inner wall of the grouting cavity 11 through a plurality of connecting plates 17 which are annularly and equidistantly arranged, a column groove 18 is arranged in the middle of the bottom surface of the fixing column 16, a sealing ring 19 is sleeved in the middle of the outer wall of the baffle 14 and the middle of the outer wall of the inserting column 15, sealing grooves 20 are respectively arranged in the positions of the inner wall of the limit ring 13 and the inner wall of the column groove 18 relative to the sealing ring 19, the baffle 14 is in inserted fit with the inner part of the limit ring 13, the inserting column 15 is in inserted fit with the column groove 18, the sealing ring 19 is in clamped fit with the sealing groove 20, a push rod A21 is hinged in the middle of the top surface of the column groove 18, a push rod B22 is hinged at the lower end of a push rod A21, a lower end of a push rod B22 is hinged with the top surface of the inserting column 15, a hydraulic rod 23 is arranged between the push rod A21 and a push rod B22, the upper and lower ends of the hydraulic rod 23 are respectively hinged with the rear wall of a push rod A21 and the rear wall of a 22, the upper end of a drill rod 5 is coaxially and fixedly connected with a rotating seat 24, a metal hose 25 is inserted in the middle of the rotating seat 24, the interior of the metal hose 25 is communicated with a grouting cavity 11 through the interior of the rotating seat 24, the upper end of the outer wall of the drill rod 5 is rotatably sleeved with a moving seat 28, a servo motor 34 is fixedly arranged on the left side of the top surface of the moving seat 28, the output end of the servo motor 34 penetrates through the moving seat 28 and extends to the lower part of the moving seat and is coaxially and fixedly connected with a gear 35, a plurality of tooth posts 36 are fixedly arranged on the outer wall of the drill rod 5 at annular equal intervals relative to the position of the gear 35, the gear 35 is meshed with the tooth posts 36, an outer frame 37 is sleeved on the outer side of the moving seat 28, the lower end of the outer frame 37 is fixedly connected to the upper end of a supporting seat 2, two sliding blocks 38 are fixedly arranged on the outer walls of two sides of the moving seat 28 in a symmetrical structure, vertical grooves 39 are arranged on the inner side ends of two sides of the outer frame 37 relative to the sliding blocks 38, and compression springs 40 are fixedly arranged between the bottom surfaces of the sliding blocks 38 and the vertical grooves 39, the outer walls of the two sides of the moving seat 28 are both connected with two rollers 41 in a symmetrical structure in a rotating way, and the inner wall of the outer frame 37 is provided with a roller groove 42 corresponding to the position of the roller 41; after the drill bit is drilled to a proper position, the servo motor 34 can be stopped, then the hydraulic rod 23 is controlled to be shortened, the included angle between the push rod A21 and the push rod B22 is reduced in the process of shortening the hydraulic rod 23, the baffle 14 is lifted, meanwhile, the inserting column 15 is inserted into the column groove 18, the sealing ring 19 outside the inserting column 15 is clamped with the sealing groove 20 in the column groove 18, and by means of the structure, cement mortar cannot be poured into the column groove 18 in the grouting process to damage the hydraulic rod 23, the protection on the hydraulic rod 23 is improved, and the service life of the device can be effectively prolonged.
Concretely, the boring cutter 7 is heliciform structure, two boring cutters 7 all are located the same axis with drilling rod 5, drill bit 8 is the inverted cone structure, connecting rod 9 upper end and 5 bottom surfaces edge of drilling rod are connected fixedly, at the in-process of the rotatory decline of drilling rod 5, drill bit 8 can pass locating hole 10 and break soil and drive drilling rod 5 and bore into the soil layer, in the rotation of boring cutter 7, the soil of drilling inner wall can be by the light break and dialled to both sides, and such structure also makes unable too much soil of collecting between the boring cutter 7 avoid the gap to be blockked up by soil, so alright light insert the position of crack or hollowing with drilling rod 5, insert more swift also more labour saving and time saving than artifical manual the hollow rod of establishing, be favorable to the improvement of slip casting efficiency.
Furthermore, a circular ring 29 is sleeved on the outer wall of the drill rod 5 relative to the moving seat 28, a circular groove 30 is formed in the moving seat 28 relative to the circular ring 29, and the circular ring 29 is rotatably connected with the circular groove 30, so that the drill rod 5 can freely rotate in the moving seat 28.
Furthermore, the rotating seat 24 is a hollow circular truncated cone structure, the outer wall of the metal hose 25 is sleeved with a plurality of rotating rings 26 at equal intervals in a linear manner relative to the position of the rotating seat 24, the inner wall of the rotating seat 24 is provided with a ring groove 27 relative to the position of the rotating ring 26, the rotating rings 26 are rotatably connected with the ring groove 27, the right end of the top surface of the moving seat 28 is fixedly provided with a top ring 32 through a cylinder 31, the right end of the metal hose 25 penetrates through the inside of the top ring 32 to extend to the lower part of the right side and is connected with a grouting pump 33, the bottom surface of the grouting pump 33 is fixedly connected with the right side of the top surface of the supporting seat 2, the rotating of the drill rod 5 can not affect the metal hose 25 while the sealing performance of the connection part of the rotating seat 24 and the metal hose 25 is ensured through a labyrinth waterproof structure, the metal hose 25 is prevented from rotating along with the rotating, the top ring 32 can support the metal hose 25, the metal hose 25 is prevented from being accumulated on the surface of the moving seat 28 when the moving seat 28 descends, and the subsequent moving seat 28 is prevented from being hindered when the moving seat 28 ascends, the protection to the lift process of the movable base 28 is further improved, so that the device can run more stably, and the efficiency of grouting work is greatly improved.
Furthermore, the gear 35 is engaged with the tooth post 36, the gear 35 is driven to rotate by the servo motor 34, the tooth post 36 is driven to further drive the drill rod 5 to rotate in the rotating process of the gear 35, the drill rod 5 moves downwards along the threaded hole 4 and rotates along with the threaded hole 4 under the threaded connection of the external thread 6 on the outer wall of the drill rod 5 and the threaded hole 4, the inner part of the outer frame 37 is in sliding contact with the outer wall of the moving seat 28, the inner end of the sliding block 38 is in sliding fit with the vertical groove 39, the annular outer wall of the roller 41 is in rolling contact with the wheel groove 42, and the friction force generated by the moving seat 28 and the inner wall of the outer frame 37 in the descending and ascending processes can be reduced through the rolling contact of the roller 41 and the wheel groove 42, so that the load of the servo motor 34 is effectively reduced.
It is worth introducing that the support plate 3 is an inclined structure with a high inside and a low outside, so that the bearing capacity of the support seat 2 can be improved through a triangular structure, the lower end of the support plate 3 is fixedly connected with the top surface of the base 1, the threaded hole 4 is in threaded connection with the external thread 6, the gear 35 is driven to rotate by the servo motor 34, the toothed column 36 is driven in the rotating process of the gear 35 to further drive the drill rod 5 to rotate, and the drill rod 5 moves downwards along the threaded hole 4 and rotates simultaneously under the threaded connection of the external thread 6 on the outer wall of the drill rod 5 and the threaded hole 4.
It is worth to be noted that the positions of the plurality of transparent acrylic plates 12 and the positions of the external threads 6 are arranged in a staggered mode, the front walls of the transparent acrylic plates 12 are of cambered surface structures, the radian of the front walls of the drill rods 5 is the same as that of the front walls of the outer frames 37, observation grooves are formed in the front and rear sides of the outer frames 37 corresponding to the positions of the drill rods 5, in the rotating and descending process of the drill rods 5, the drill bits 8 can penetrate through the positioning holes 10 and break soil to drive the drill rods 5 to drill into soil layers, in the rotating process of the drill cutters 7, soil on the inner walls of drilled holes can be easily broken and pulled to the two sides, and due to the structure, too much soil cannot be accumulated between the drill cutters 7 to avoid gaps from being blocked by the soil, so that the drill rods 5 can be easily inserted into the positions of cracks or hollows, compared with manual insertion of hollow rods, the advantages of being faster, more time-saving and labor-saving are achieved, and grouting efficiency is improved.
A grouting method of a grouting device for highway bridge construction comprises the following steps:
s1, firstly, hollowing and crack detection is carried out on the highway foundation, when hollowing and cracks are found, the positioning holes 10 of the device can correspond to the positions of the hollowing or the cracks, and then the servo motor 34 and the grouting pump 33 in the device are connected with an external power supply through leads;
s2, the servo motor 34 is used for driving the gear 35 to rotate, the gear 35 drives the drill rod 5 to rotate through the tooth column 36, the drill rod 5 moves downwards along the threaded hole 4 under the threaded connection of the external threads 6 on the outer wall of the drill rod 5 and the threaded hole 4 and rotates automatically, and the drill bit 8 penetrates through the positioning hole 10 and breaks the soil to drive the drill rod 5 to drill into the soil;
s3, when the depth to be drilled reaches the expected measurement position of a hollow bulge or a crack, a worker needs to operate the hydraulic rod 23 to shorten, so that the sealing ring 19 on the outer wall of the baffle plate 14 is separated from the sealing groove 20 on the inner wall of the limiting ring 13, the inserting column 15 is inserted into the column groove 18, the sealing ring 19 on the outer wall of the inserting column 15 is clamped with the sealing groove 20 on the inner wall of the column groove 18, then cement mortar can be injected into the grouting cavity 11 by using the grouting pump 33, and the cement mortar can penetrate through the grouting cavity 11 and is finally injected into the crack or the hollow bulge along the lower side opening end of the grouting cavity 11;
s4, in the injection process, workers can observe the inside of the injection cavity 11 through the plurality of transparent acrylic plates 12 embedded on the outer wall of the drill rod 5 through the observation groove of the outer frame 37, when the top surface position of cement mortar can be observed through the transparent acrylic plates 12, the continuous injection is stopped, finally, the drill rod 5 is drawn out by utilizing the reverse rotation of the servo motor 34, and the grouting filling work of cracks or hollows existing in the road foundation is completed.
The working principle is as follows: in the process of highway foundation construction, if the existence of cracks or hollows in the foundation is detected, the device can be used for grouting and filling the cracks and hollows, the device can be moved to the position corresponding to the cracks or hollows by an external carrier by an operator in advance, then the appropriate drilling position is selected, the positioning hole 10 is aligned with the position, then the gear 35 is driven to rotate by the servo motor 34, the toothed column 36 is driven to further drive the drill rod 5 to rotate in the rotating process of the gear 35, the drill rod 5 moves downwards along the threaded hole 4 under the threaded connection of the external thread 6 on the outer wall of the drill rod and the threaded hole 4 and rotates automatically, at the moment, the drill bit 8 penetrates through the positioning hole 10 and breaks the soil to drive the drill rod 5 to drill into the soil layer, in the rotation of the drill bit 7, the soil on the inner wall of the drill hole can be easily broken and pulled to two sides, and such structure also makes the unable too much soil of building up between the drilling tool 7 avoid the gap to be blocked by soil, so can insert the drilling rod 5 to the position of crack or empty drum easily, it is more swift and labour saving and time saving than inserting the hollow rod manually, help the improvement of the grouting efficiency, in the course that the rotation of the drilling rod 5 descends, move the seat 28 will descend too, move both sides exterior wall of the seat 28 and present the symmetrical structure and rotate and connect with the gyro wheel 41, can reduce the friction produced with the inner wall of the outer gimbal 37 in the course that move the seat 28 descends and ascends through the rolling contact of gyro wheel 41 and race 42, has reduced the load of the servomotor 34 effectively, in addition, the top of the moving seat 28 can produce the supporting action to the metal hose 25 through the top ring 32 that the cylinder 31 sets firmly, avoid the metal hose 25 will pile up to the surface of moving seat 28 and make the subsequent moving seat 28 raise and produce the hindrance, the protection to the lifting process of the movable seat 28 is further improved, the device can run more stably, the efficiency of grouting work is greatly improved, when the drill rod 5 rotates and descends, the inner wall of the rotating seat 24 and the outer wall of the metal hose 25 are rotationally connected through a plurality of rotating rings 26 which are fixedly arranged at equal intervals in a linear mode, the sealing performance of the joint of the drill rod 5 and the metal hose 25 is guaranteed through a labyrinth type waterproof structure, the metal hose 25 cannot be influenced by the rotation of the drill rod 5, the metal hose 25 is prevented from rotating along with the rotation to cause damage, the baffle 14 positioned in the grouting cavity 11 is inserted in the limiting ring 13, the lower side opening end of the grouting cavity 11 can form a sealing structure through the insertion fit between the outer sealing ring 19 and the sealing groove 20 in the inner wall of the limiting ring 13, and therefore, soil cannot be drilled into the drilling cavity 11 from the lower opening end in the downward drilling process of the drill rod 5, the problem that the grouting cavity 11 is filled with excessive soil to cause blockage is avoided, the servo motor 34 can be stopped after the drilling is carried out to a proper position to control the hydraulic rod 23 to be shortened, the included angle between the push rod A21 and the push rod B22 is reduced in the process that the hydraulic rod 23 is shortened, the baffle 14 is lifted, the inserting column 15 is inserted into the column groove 18 at the same time, the sealing ring 19 outside the inserting column 15 is clamped with the sealing groove 20 in the column groove 18, the column groove 18 cannot be damaged by cement mortar filled into the column groove in the grouting process through the structure, the protection on the hydraulic rod 23 is improved, the service life of the device can be effectively prolonged, when the baffle 14 is not isolated from the inside and the outside of the grouting cavity 11, a worker can start grouting work to a crack or hollow drum part through the grouting cavity 11 by using the grouting cavity 33, and the worker can observe the situation inside the grouting cavity 11 at a glance through the plurality of transparent acrylic plates 12 at the moment Therefore, the position of the top surface of the cement mortar in the grouting process can be accurately grasped, the grouting amount of the cement mortar can be conveniently and quickly judged, the situation that the filling effect cannot be achieved due to too little grouting is avoided, waste caused by too much grouting is avoided, and the accuracy of crack grouting and filling work is improved.
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, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a grouting device is used in public road bridge roof beam construction, includes base (1), its characterized in that: the drilling machine is characterized in that a supporting seat (2) is arranged above the base (1), four supporting plates (3) are fixedly arranged at four corners of the bottom surface of the supporting seat (2) in a symmetrical structure, a threaded hole (4) is formed in the left side of the top surface of the supporting seat (2), a drilling rod (5) is inserted into the threaded hole (4), an external thread (6) is formed in the outer wall of the drilling rod (5), the threaded hole (4) is in threaded connection with the external thread (6), the lower end of the drilling rod (5) penetrates through the threaded hole (4) to extend to the lower part and is provided with two drilling cutters (7) in a symmetrical structure, a drill bit (8) is fixedly arranged between the lower ends of the two drilling cutters (7), a plurality of connecting rods (9) are fixedly arranged on the top surface of the drill bit (8) in an annular and equidistant manner, a positioning hole (10) is formed in the top surface of the base (1) relative to the position of the drill bit (8), and a grouting cavity (11) is formed in the drilling rod (5) in a penetrating manner, the grouting device is characterized in that a plurality of transparent acrylic plates (12) are embedded in the outer wall of the grouting cavity (11) in a linear equidistant mode in the vertical direction, a limiting ring (13) is fixedly arranged at the lower end of the inner wall of the grouting cavity (11), a baffle (14) is arranged above the limiting ring (13), an inserting column (15) is coaxially and fixedly arranged in the middle of the top surface of the baffle (14), a fixing column (16) is arranged above the inserting column (15), the outer wall of the fixing column (16) is fixedly connected with the inner wall of the grouting cavity (11) through a plurality of connecting plates (17) which are annularly and equidistantly arranged, a column groove (18) is formed in the middle of the bottom surface of the fixing column (16), sealing rings (19) are sleeved in the middle of the outer wall of the baffle (14) and the middle of the outer wall of the inserting column (15), sealing grooves (20) are formed in the positions, relative to the sealing rings (19), of the inner wall of the limiting ring (13) and the inner wall of the column groove (18), and the baffle (14) are in inserted connection and matched with the limiting ring (13), the plug-in column is characterized in that the plug-in column (15) is in plug-in fit with a column groove (18), a sealing ring (19) is in joint fit with a sealing groove (20), a push rod A (21) is hinged to the middle of the top surface of the column groove (18), a push rod B (22) is hinged to the lower end of the push rod A (21), the lower end of the push rod B (22) is hinged to the top surface of the plug-in column (15), a hydraulic rod (23) is arranged between the push rod A (21) and the push rod B (22), the upper end and the lower end of the hydraulic rod (23) are hinged to the rear wall of the push rod A (21) and the rear wall of the push rod B (22) respectively, a rotating seat (24) is coaxially and fixedly connected to the upper end of the drill rod (5), a metal hose (25) is inserted into the middle of the rotating seat (24), the inside of the metal hose (25) is communicated with a grouting cavity (11) through the inside of the rotating seat (24), and a moving seat (28) is sleeved on the upper end of the outer wall of the drill rod (5), the drill pipe drilling machine is characterized in that a servo motor (34) is fixedly arranged on the left side of the top surface of the moving seat (28), the output end of the servo motor (34) penetrates through the moving seat (28) and extends to the lower part of the moving seat and is fixedly connected with a gear (35) coaxially, a plurality of tooth columns (36) are fixedly arranged on the outer wall of the drill pipe (5) at equal intervals in an annular mode relative to the position of the gear (35), the gear (35) is meshed with the tooth columns (36) and is connected with the outer frame (37) in a sleeved mode, the lower end of the outer frame (37) is fixedly connected to the upper end of the supporting seat (2), two sliding blocks (38) are fixedly arranged on the outer walls of the two sides of the moving seat (28) in a symmetrical structure, vertical grooves (39) are formed in the inner side ends of the two sides of the outer frame (37) relative to the positions of the sliding blocks (38), compression springs (40) are fixedly arranged between the bottom surfaces of the sliding blocks (38) and the vertical grooves (39), two outer walls of the two sides of the moving seat (28) are rotatably connected with two idler wheels (41) in a symmetrical structure, the inner wall of the outer frame (37) is provided with a wheel groove (42) relative to the position of the roller (41).
2. The grouting device for road bridge construction according to claim 1, wherein: the drill (7) is of a spiral structure, the drill (7) and the drill rod (5) are located on the same axis, the drill bit (8) is of an inverted cone structure, and the upper end of the connecting rod (9) is connected and fixed with the edge of the bottom surface of the drill rod (5).
3. The grouting device for road bridge construction according to claim 1, wherein: the outer wall of the drill rod (5) is sleeved with a circular ring (29) relative to the position of the moving seat (28), a circular groove (30) is formed in the position of the moving seat (28) relative to the circular ring (29), and the circular ring (29) is rotatably connected with the circular groove (30).
4. The grouting device for road bridge construction according to claim 1, wherein: rotate seat (24) and be hollow round platform structure, metal collapsible tube (25) outer wall is linear equidistant cover and is equipped with a plurality of swivels (26) for the position of rotating seat (24), rotate seat (24) inner wall and seted up annular (27) for the position of swivels (26), swivel (26) rotate with annular (27) and are connected.
5. The grouting device for road bridge construction according to claim 4, wherein: remove seat (28) top surface right-hand member and have set firmly apical ring (32) through cylinder (31), metal collapsible tube (25) right-hand member passes apical ring (32) inside and extends to the right side below and is connected with grouting pump (33), grouting pump (33) bottom surface is connected fixedly with supporting seat (2) top surface right side.
6. The grouting device for road bridge construction according to claim 1, wherein: the gear (35) is meshed with the tooth column (36), the inner part of the outer frame (37) is in sliding contact with the outer wall of the moving seat (28), the inner side end of the sliding block (38) is in sliding fit with the vertical groove (39), and the annular outer wall of the roller (41) is in rolling contact with the roller groove (42).
7. The grouting device for road bridge construction according to claim 1, wherein: the support plate (3) is of an inclined structure with a high inner part and a low outer part, and the lower end of the support plate (3) is fixedly connected with the top surface of the base (1).
8. The grouting device for road bridge construction according to claim 1, wherein: a plurality of the position of transparent inferior gram force board (12) and the position staggered arrangement of external screw thread (6), transparent inferior gram force board (12) antetheca is the same cambered surface structure of radian and drilling rod (5) antetheca radian, both sides and the corresponding position of drilling rod (5) have all been seted up in frame (37) front and back both sides.
9. The grouting method of a grouting device for road bridge construction according to any one of claims 1 to 8, comprising the steps of:
s1, firstly, hollowing and crack detection is carried out on the road foundation, when hollowing and cracks are found, the positioning hole (10) of the device can correspond to the position of the hollowing or the crack, and then the servo motor (34) and the grouting pump (33) in the device are connected with an external power supply through leads;
s2, the gear (35) is driven to rotate by the servo motor (34), the gear (35) drives the drill rod (5) to rotate through the tooth column (36), the drill rod (5) moves downwards along the threaded hole (4) under the threaded connection of the external thread (6) on the outer wall of the drill rod and the threaded hole (4) and rotates automatically, and the drill bit (8) penetrates through the positioning hole (10) and breaks through soil to drive the drill rod (5) to drill into the soil layer;
s3, when the depth to be drilled reaches the expected measurement position of a hollow drum or a crack, a worker needs to operate a hydraulic rod (23) to shorten, so that a sealing ring (19) on the outer wall of a baffle (14) is separated from a sealing groove (20) on the inner wall of a limiting ring (13), an inserted column (15) is inserted into a column groove (18), the sealing ring (19) on the outer wall of the inserted column (15) is clamped with the sealing groove (20) on the inner wall of the column groove (18), then cement mortar can be injected into a grouting cavity (11) by using a grouting pump (33), and the cement mortar can penetrate through the grouting cavity (11) and is finally injected into the crack or the hollow drum along the lower side opening end of the grouting cavity;
s4, in the injection process, workers can observe the conditions inside the injection cavity (11) through the plurality of transparent acrylic plates (12) embedded in the outer wall of the drill rod (5) through the observation groove of the outer frame (37), when the top surface position of cement mortar can be observed through the transparent acrylic plates (12), the continuous injection is stopped, finally the drill rod (5) is drawn out through the reverse rotation of the servo motor (34), and the grouting filling work of cracks or empty drums existing in the highway foundation is completed.
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| CN117108318B (en) * | 2023-10-25 | 2024-01-02 | 北京科技大学 | Surrounding rock reinforcing grouting system for underground coal mine roadway |
| CN117516428A (en) * | 2024-01-05 | 2024-02-06 | 中电建路桥集团有限公司 | Basement concrete crack detection device |
| CN117516428B (en) * | 2024-01-05 | 2024-04-02 | 中电建路桥集团有限公司 | Basement concrete crack detection device |
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