Grooving equipment for concrete precast pile

Abstract

The invention discloses grooving equipment for a concrete precast pile, and belongs to the technical field of concrete precast pile construction, the grooving equipment comprises a seat plate, a hanging box, a lifting device, a grooving device and an adjusting device, the lifting device is used for driving the hanging box to vertically move, a driving cylinder is rotatably connected in the hanging box, and a transmission shaft is slidably connected in the driving cylinder; the grooving device comprises a mounting box and a grooving tool bit, the mounting box is rotationally connected with the transmission shaft, a first driving gear is fixedly connected to the transmission shaft, the grooving device further comprises a first driven gear meshed with the first driving gear, and a tool shaft is fixedly connected to the center of the first driven gear; the automatic grooving machine has the beneficial effects that a plurality of groove bodies can be formed at the same time, installation and adjustment of a guide rod are not needed, and the efficiency is greatly improved; the grooving depth can be adjusted as required; and the grooving width can be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of concrete precast pile construction, and in particular to a grooving device for concrete precast piles. Background Art

[0002] Hollow precast piles are a type of pile structure with a hollow interior. They are made of concrete as the main material and are a type of pile foundation building material. They have the advantages of light weight, good vibration absorption performance, and high economic benefits. Hollow precast piles are widely used in various civil engineering projects due to their unique advantages.

[0003] After the hollow precast piles are driven into the soil, a groove needs to be opened on the inner wall for the purpose of laying pipelines. Some hollow precast piles also need to be poured with concrete after being driven into the soil. In order to make the connection between the poured concrete and the pile body tighter, a groove also needs to be opened on the inner wall.

[0004] In the prior art, a guide rod is generally arranged near the inner wall of the pile body, and a motor is slidably connected to the guide rod. The motor drives a slotting cutter head, and the longitudinal slot is opened by discharging the motor downward. However, this slotting method has the following disadvantages:

[0005] Firstly, only one groove can be opened at a time, while multiple grooves need to be opened evenly around the circumference of the hollow precast pile. When opening grooves at different positions, multiple guide rods need to be set, which results in low efficiency of grooving and complicated operation.

[0006] Secondly, for hollow precast piles of different diameters or when there are requirements for the depth of the grooves, this can only be achieved by adjusting the distance between the guide rod and the inner wall of the hollow precast pile, and the depth of the grooves cannot be flexibly adjusted before the grooves are opened.

[0007] Thirdly, the width of the slot body is consistent with the diameter of the slotting cutter head, and the slotting width cannot be adjusted as needed. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a grooving device for precast concrete piles, which is implemented through the following technical solutions.

[0009] A slotting device for a concrete precast pile, comprising a hollow precast pile driven into soil, a seat plate, a hanging box, a lifting device, a slotting device and an adjusting device;

[0010] The seat plate is located directly above the hollow precast pile, the bottom of the seat plate is fixedly connected to a support leg, the bottom of the outer wall of the support leg is fixedly connected to an anchor plate, an anchor rod is inserted into the anchor plate, and the anchor rod is nailed into the soil, the hanging box is located below the seat plate, and the lifting device is used to drive the hanging box to move vertically;

[0011] A U-shaped frame is fixedly connected to the inner wall of each side plate of the hanging box, and a driving cylinder is rotatably connected to the U-shaped frame and the side plate of the hanging box. A transmission shaft is slidably connected in the driving cylinder, and transmission grooves are evenly arranged on the circumference of the transmission shaft. A transmission strip slidably connected to the transmission groove is fixedly connected to the inner wall of the driving cylinder. A first driven bevel gear is fixedly connected to one end of the driving cylinder close to the center of the hanging box, and a slotted motor is fixedly connected to the hanging box. The slotted motor is provided with a first output shaft vertically downward, and a first driving bevel gear meshing with the first driven bevel gear is fixedly connected to the bottom of the first output shaft;

[0012] The slotting device comprises an installation box and a slotting cutter head; the side plate of the installation box close to the hanging box is rotatably connected to the transmission shaft, a sliding rod is fixedly connected to one side of the installation box, a sliding sleeve is fixedly connected in the hanging box, the sliding rod is slidably connected in the sliding sleeve, one end of the transmission shaft extending into the installation box is fixedly connected to a first driving gear, and also comprises a first driven gear meshing with the first driving gear, the center of the first driven gear is fixedly connected to a cutter shaft, and the slotting cutter head is fixedly connected to the head of the cutter shaft;

[0013] The adjusting device is used to adjust the distance between the installation box and the hanging box.

[0014] Preferably, a mounting cylinder is rotatably connected in the mounting box, a avoidance hole is opened in the mounting cylinder near the transmission shaft, the knife shaft is rotatably connected in the mounting cylinder, two knife shafts are provided, and the two knife shafts are symmetrically arranged on both sides of the first driving gear, a worm gear is fixedly connected to the outer ring of the mounting cylinder, and a rotating shaft is rotatably connected to the lower part of the mounting box, a worm meshing with the worm gear is fixedly connected to the rotating shaft, and a first knob is fixedly connected to the head of the rotating shaft.

[0015] Preferably, the lead angle of the worm is smaller than the equivalent friction angle between the worm and the meshing teeth of the worm wheel.

[0016] Preferably, the outer wall of the installation tube is symmetrically fixed with a limit block, the outer wall of the side plate of the installation box away from the hanging box is symmetrically fixed with an arc-shaped limit frame, and the limit block is slidably connected to the limit frame.

[0017] Preferably, the outer wall of the side plate of the installation box away from the hanging box is provided with scale lines, and a pointer is fixedly connected to the installation tube.

[0018] Preferably, the adjusting device includes a screw and an adjusting seat; a right-angle frame is fixedly connected to the left rear corner and the right front corner of the hanging box, the screw is rotatably connected to the side plate of the right-angle frame, one end of the screw located in the right-angle frame is fixedly connected to the second driven bevel gear, and the other end of the screw is rotatably connected to the U-shaped frame, and a track groove is opened on the side plate of the hanging box at a position corresponding to the screw, a track rod is fixed in the track groove, the adjusting seat is meshed with the screw and slidably connected to the track rod, a connecting rod is hinged between the adjusting seat and the mounting box, the center of the right-angle frame is rotatably connected to an axle rod, a second active bevel gear meshing with the second driven bevel gear is fixed on the axle rod, a transmission wheel is fixedly connected to the bottom of the axle rod, the two transmission wheels are linked by a belt, and a second knob is fixedly connected to the top of the axle rod at the left rear.

[0019] Preferably, the lifting device includes a threaded barrel and a lifting motor; there are four threaded barrels in a rectangular array, the bottom of the threaded barrel is fixedly connected to the hanging box, a threaded sleeve is rotatably connected to the seat plate, the threaded barrel is meshed in the threaded sleeve, the outer wall of the threaded sleeve is fixedly connected to a second driven gear, a cover body is fixedly connected to the seat plate, the cover body covers the second driven gear therein, a through hole is opened on the top plate of the cover body at a position corresponding to the threaded barrel, the lifting motor is fixed to the cover body, the lifting motor is provided with a second output shaft pointing vertically downward, the bottom of the second output shaft is fixedly connected to a second driving gear, and each second driven gear is meshed with the second driving gear.

[0020] Preferably, a spray pipe is fixedly connected to the bottom of the threaded barrel, a support plate is fixedly connected to the installation box, the spray pipe is fixedly connected to the support plate, the head of the spray pipe is fixedly connected to a spray head facing the slotted cutter head, the top of the threaded barrel is fixedly connected to a water tank, a water pump is fixedly connected to the seat plate, the inlet and outlet of the water pump are respectively fixedly connected to a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are hoses, and the head of the water outlet pipe is connected to the water tank.

[0021] Preferably, the seat plate is fixedly connected with a forward / reverse switch and a control switch, and also includes an external power supply. The slotting motor and the water pump form a parallel circuit, which forms a current loop with the external power supply through the control switch, and the lifting motor forms a current loop with the external power supply through the forward / reverse switch.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1. The lifting device drives the hanging box to move vertically. When the hanging box moves, the slotting cutter head opens a slot on the inner wall of the hollow precast pile. Multiple slots can be opened at the same time without the need to install and adjust the guide rod, which greatly improves efficiency.

[0024] 2. The position of the installation box and the slotting cutter head can be adjusted through the adjustment device, thereby adjusting the overlap depth of the slotting cutter head and the prefabricated hollow pile, and then the slotting depth can be adjusted as needed.

[0025] 3. Two slotting cutter heads are set at each slotting position. The slotting width can be adjusted by adjusting the degree of vertical offset between the two slotting cutter heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 : An axonometric view of a grooving device for a precast concrete pile according to the present invention;

[0028] Figure 2 : A three-dimensional schematic diagram of the bottom of a grooving device for a precast concrete pile according to the present invention;

[0029] Figure 3 : A cross-sectional view of a grooving device for a precast concrete pile according to the present invention;

[0030] Figure 4 : Figure 3 A partial enlarged view of point A shown;

[0031] Figure 5 : Figure 3 A partial enlarged view of point B shown;

[0032] Figure 6 : Figure 3 A local enlarged view of point C shown;

[0033] Figure 7 : Axonometric drawing of the hanging box of the present invention;

[0034] Figure 8 : A top view of the hanging box of the present invention;

[0035] Fig. 9 : A schematic diagram of the internal structure of the hanging box of the present invention;

[0036] Fig.10 : A half-section view of the installation box of the present invention;

[0037] Fig.11 : A schematic diagram of the internal structure of the installation box of the present invention;

[0038] Fig.12 : Schematic diagram of the positions of the two slotting cutter heads at the minimum slotting width;

[0039] Fig.13 : Schematic diagram of the positions of the two slotting cutter heads at the maximum slotting width;

[0040] Fig.14 : A schematic diagram of the transmission of the two shafts in the present invention;

[0041] Fig.15 : A schematic diagram of circuit connection of each circuit element in the present invention.

[0042] The reference numerals are as follows:

[0043] 100-hollow precast piles, 200-soil;

[0044] 1-seat plate, 11-support leg, 12-anchor plate, 13-anchor rod;

[0045] 2-hanging box, 21-U-shaped frame, 22-driving cylinder, 23-transmission shaft, 24-transmission groove, 25-transmission bar, 26-first driven bevel gear, 27-slotted motor, 28-first output shaft, 29-first driving bevel gear;

[0046] 31-threaded cylinder, 32-lifting motor, 33-threaded sleeve, 34-second driven gear, 35-cover body, 36-second output shaft, 37-second driving gear;

[0047] 41-installation box, 42-slotting cutter head, 43-slide rod, 44-slide sleeve, 45-first driving gear, 46-first driven gear, 47-cutter shaft, 48-installation cylinder, 49-worm gear, 410-rotating shaft, 411-worm, 412-first knob, 413-limiting block, 414-limiting frame, 415-scale line, 416-pointer;

[0048] 51-screw, 52-adjusting seat, 53-right angle frame, 54-second driven bevel gear, 55-track groove, 56-track rod, 57-connecting rod, 58-shaft rod, 59-second active bevel gear, 510-transmission wheel, 511-belt, 512-second knob;

[0049] 61-sprinkler pipe, 62-support plate, 63-sprinkler head, 64-water tank, 65-water pump, 66-water inlet pipe, 67-water outlet pipe;

[0050] 71-forward and reverse switch, 72-control switch, 73-external power supply. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] like Figure 1-15 As shown, the present invention has the following four specific embodiments.

[0053] Example 1

[0054] A slotting device for a concrete precast pile, comprising a hollow precast pile 100, the hollow precast pile 100 being driven into a soil body 200, and further comprising a seat plate 1, a hanging box 2, a lifting device, a slotting device and an adjusting device;

[0055] The seat plate 1 is located directly above the hollow precast pile 100, the bottom of the seat plate 1 is fixedly connected with a support leg 11, the bottom of the outer wall of the support leg 11 is fixedly connected with an anchor plate 12, the anchor plate 12 is inserted with an anchor rod 13, and the anchor rod 13 is nailed into the soil 200, the hanging box 2 is located below the seat plate 1, and the lifting device is used to drive the hanging box 2 to move vertically;

[0056] A U-shaped frame 21 is fixedly connected to the inner wall of each side plate of the hanging box 2, and a driving cylinder 22 is rotatably connected to the U-shaped frame 21 and the side plate of the hanging box 2. A transmission shaft 23 is slidably connected in the driving cylinder 22, and a transmission groove 24 is evenly opened on the circumference of the transmission shaft 23. A transmission bar 25 slidably connected to the transmission groove 24 is fixedly connected to the inner wall of the driving cylinder 22, and a first driven bevel gear 26 is fixedly connected to one end of the driving cylinder 22 close to the center of the hanging box 2. A slotted motor 27 is fixedly connected to the hanging box 2, and the slotted motor 27 is provided with a first output shaft 28 vertically downward, and a first driving bevel gear 29 meshing with the first driven bevel gear 26 is fixedly connected to the bottom of the first output shaft 28;

[0057] The slotting device includes an installation box 41 and a slotting cutter head 42; the side plate of the installation box 41 close to the hanging box 2 is rotatably connected to the transmission shaft 23, a sliding rod 43 is fixedly connected to one side of the installation box 41, a sliding sleeve 44 is fixedly connected in the hanging box 2, the sliding rod 43 is slidably connected in the sliding sleeve 44, one end of the transmission shaft 23 extending into the installation box 41 is fixedly connected to a first driving gear 45, and also includes a first driven gear 46 meshing with the first driving gear 45, the center of the first driven gear 46 is fixedly connected to a cutter shaft 47, and the slotting cutter head 42 is fixedly connected to the head of the cutter shaft 47;

[0058] The adjusting device is used to adjust the distance between the installation box 41 and the hanging box 2.

[0059] In this embodiment, as shown in the figure, the seat plate 1 is fixed directly above the hollow precast pile 100 by the anchor rod 13, and the distance of the installation box 41 relative to the hanging box 2 is adjusted by the adjustment device, thereby adjusting the depth of the overlap between the slotting cutter head 42 and the side plate of the hollow precast pile 100, which is the depth of the slot body subsequently opened.

[0060] like Figure 3-4 ,as well as Fig. 9As shown, when the slotting motor 27 is working, it drives the first output shaft 28 and the first active bevel gear 29 to rotate, and the first driven bevel gear 26 meshing therewith rotates, thereby driving the cylinder 22 to rotate, as shown in FIG. Figure 4-5 ,as well as Figure 9-10 As shown, when the position of the installation box 41 is adjusted, the slide rod 43 moves in the slide sleeve 44 to guide the movement of the installation box 41, and the installation box 41 pulls the transmission shaft 23 to move. Under the action of the transmission groove 24 and the transmission bar 25, the driving cylinder 22 can drive the transmission shaft 23 to rotate.

[0061] The first driving gear 45 rotates along with the transmission shaft 23 , and the first driven gear 46 meshing with the first driving gear 45 rotates, so that the cutter shaft 47 and the slotting cutter head 42 rotate.

[0062] The lifting device drives the hanging box 2 to move downward, and the position where the slotting cutter head 42 overlaps with the hollow precast pile 100 is cut off to form a slot body. Multiple slot bodies can be opened at the same time. After the slot bodies are opened, the slotting motor 27 is turned off, and the lifting device drives the hanging box 2 to move upward and reset.

[0063] Example 2

[0064] A mounting cylinder 48 is rotatably connected in the mounting box 41, and an avoidance hole is opened in the mounting cylinder 48 near the transmission shaft 23. A knife shaft 47 is rotatably connected in the mounting cylinder 48. Two knife shafts 47 are provided, and the two knife shafts 47 are symmetrically arranged on both sides of the first driving gear 45. A worm gear 49 is fixedly connected to the outer ring of the mounting cylinder 48. A rotating shaft 410 is rotatably connected to the lower part of the mounting box 41. A worm 411 meshing with the worm gear 49 is fixedly connected to the rotating shaft 410, and a first knob 412 is fixedly connected to the head of the rotating shaft 410.

[0065] Furthermore, the lead angle of the worm 411 is smaller than the equivalent friction angle between the meshing teeth of the worm 411 and the worm wheel 49 .

[0066] Furthermore, the outer wall of the installation tube 48 is symmetrically fixed with a limit block 413 , and the outer wall of the side plate of the installation box 41 away from the hanging box 2 is symmetrically fixed with an arc-shaped limit frame 414 , and the limit block 413 is slidably connected in the limit frame 414 .

[0067] Furthermore, a scale line 415 is provided on the outer wall of the side plate of the installation box 41 away from the hanging box 2 , and a pointer 416 is fixedly connected to the installation tube 48 .

[0068] In this embodiment, in order to adjust the width of the slot, this embodiment further discloses the specific technical features of the slotting device, such as Figure 5 ,as well as Figure 10-11As shown, the first knob 412 can drive the rotating shaft 410 and the worm 411 to rotate, and the worm wheel 49 meshing with the worm 411 rotates, thereby rotating the mounting cylinder 48. When the mounting cylinder 48 rotates, it drives the knife shaft 47 and the slotting cutter head 42 to rotate, so that the vertically staggered positions of the two slotting cutter heads 42 can be adjusted. The center of the mounting cylinder 48 coincides with the center of the first driving gear 45. When the mounting cylinder 48 rotates, the first driven gear 46 always remains in a meshing state with the first driving gear 45.

[0069] like Fig.12 As shown, when the two slotting cutter heads 42 are vertically aligned, the width of the slot body opened is equal to the width of the slotting cutter head 42, which is L1;

[0070] like Fig.13 As shown, when the mounting cylinder 48 rotates, the two slotting cutter heads 42 rotate synchronously. When the limiting block 413 contacts the other side wall of the limiting groove, the vertical offset of the two slotting cutter heads 42 is the largest. The distance between the two slotting cutter heads 42 away from each other is the width of the slot. At this time, the width of the slot body is the largest, which is L2.

[0071] Since the lead angle of the worm 411 is smaller than the equivalent friction angle between the meshing teeth of the worm 411 and the worm wheel 49, the worm wheel 49 and the worm 411 are self-locking, that is, the worm 411 can drive the worm wheel 49 to rotate but the worm wheel 49 cannot drive the worm 411 to rotate. When the mounting cylinder 48 is rotated, during the slotting process, as long as the worm 411 is not driven to rotate manually, the position of the mounting cylinder 48 remains unchanged, thereby keeping the slotting width consistent.

[0072] The arrangement of the limit block 413 and the limit frame 414 can limit the installation angle of the installation tube 48, thereby preventing the two slotting cutter heads 42 from being too far offset and causing a gap to appear between them.

[0073] When adjusting the slot width, the rotation angle of the mounting tube 48 can be read by the pointer 416 on the scale line 415, thereby ensuring that the widths of the slots are consistent.

[0074] Example 3

[0075] The adjusting device includes a screw rod 51 and an adjusting seat 52; a right angle frame 53 is fixedly connected to the left rear corner and the right front corner of the hanging box 2, the screw rod 51 is rotatably connected to the side plate of the right angle frame 53, one end of the screw rod 51 located in the right angle frame 53 is fixedly connected to the second driven bevel gear 54, and the other end of the screw rod 51 is rotatably connected to the U-shaped frame 21, a track groove 55 is opened on the side plate of the hanging box 2 corresponding to the position of the screw rod 51, a track rod 56 is fixedly connected in the track groove 55, the adjusting seat 52 is meshed with the screw rod 51 and is slidably connected to the track rod 56, a connecting rod 57 is hinged between the adjusting seat 52 and the installation box 41, the center of the right angle frame 53 is rotatably connected to the shaft rod 58, the shaft rod 58 is fixedly connected to the second active bevel gear 59 meshing with the second driven bevel gear 54, the bottom of the shaft rod 58 is fixedly connected to the transmission wheel 510, the two transmission wheels 510 are linked by a belt 511, and the top of the shaft rod 58 at the left rear is fixedly connected to the second knob 512.

[0076] In this embodiment, the technical features of the adjustment device are disclosed, such as Figure 8-9 as well as Fig.14 As shown, one of the shafts 58 can be driven to rotate through the second knob 512. Under the action of the transmission wheel 510 and the belt 511, the two shafts 58 rotate synchronously, the second active bevel gear 59 rotates synchronously with the shaft 58, and the second driven bevel gear 54 meshing with the second active bevel gear 59 rotates, and then each screw rod 51 rotates synchronously, the adjustment seat 52 meshes with the screw rod 51 and is slidably connected to the track rod 56. When the screw rod 51 rotates, the adjustment seat 52 can be driven to move, and the adjustment seat 52 drives the installation box 41 to move through the connecting rod 57, thereby adjusting the position of the slotting cutter head 42.

[0077] The rotation direction of the thread groove on each screw rod 51 is set so that when each screw rod 51 rotates, each installation box 41 moves closer to or farther away from the hanging box 2 synchronously.

[0078] Example 4

[0079] The lifting device includes a threaded cylinder 31 and a lifting motor 32; there are four threaded cylinders 31 in a rectangular array, the bottom of the threaded cylinder 31 is fixedly connected to the hanging box 2, a threaded sleeve 33 is rotatably connected to the seat plate 1, the threaded cylinder 31 is meshed in the threaded sleeve 33, the outer wall of the threaded sleeve 33 is fixedly connected to the second driven gear 34, a cover body 35 is fixedly connected to the seat plate 1, the cover body 35 covers the second driven gear 34 therein, a through hole is opened on the top plate of the cover body 35 at a position corresponding to the threaded cylinder 31, the lifting motor 32 is fixedly connected to the cover body 35, the lifting motor 32 is provided with a second output shaft 36 pointing vertically downward, the bottom of the second output shaft 36 is fixedly connected to a second driving gear 37, and each second driven gear 34 is meshed with the second driving gear 37.

[0080] In this embodiment, the technical features of the lifting device are disclosed, such as Figure 3 ,as well as Figure 6-7 As shown, when the lifting motor 32 is working, it drives the second output shaft 36 and the second driving gear 37 to rotate, and the second driven gears 34 meshing therewith rotate, so that the threaded sleeve 33 rotates. Since the threaded barrel 31 remains stationary, the threaded barrel 31 can be driven to move vertically when the threaded sleeve 33 rotates, thereby driving the hanging box 2 to move vertically.

[0081] As a further implementation method of this embodiment, a spray pipe 61 is fixedly connected to the bottom of the threaded tube 31, a support plate 62 is fixedly connected to the mounting box 41, the spray pipe 61 is fixedly connected to the support plate 62, the head of the spray pipe 61 is fixedly connected to a nozzle 63 facing the slotting cutter head 42, a water tank 64 is fixedly connected to the top of the threaded tube 31, a water pump 65 is fixedly connected to the seat plate 1, the inlet and outlet of the water pump 65 are respectively fixedly connected to a water inlet pipe 66 and a water outlet pipe 67, the water inlet pipe 66 and the water outlet pipe 67 are hoses, and the head of the water outlet pipe 67 is connected to the water tank 64.

[0082] In this embodiment, if Figure 3 as well as Figure 7 As shown, during the grooving process, the head of the water inlet pipe 66 is placed in an external water source. When the water pump 65 is working, water is transported to the water tank 64 through the water outlet pipe 67. The water is sprayed out through the threaded cylinder 31, the spray pipe 61 and the nozzle 63 in sequence, and acts on the grooving cutter head 42. On the one hand, the grooving cutter head 42 is cooled, and on the other hand, the dust generated during grooving can also be reduced.

[0083] As a further implementation method of this embodiment, a forward-reverse switch 71 and a control switch 72 are fixedly connected to the seat plate 1, and also includes an external power supply 73. The slotting motor 27 and the water pump 65 form a parallel circuit, and the parallel circuit forms a current loop with the external power supply 73 through the control switch 72. The lifting motor 32 forms a current loop with the external power supply 73 through the forward-reverse switch 71.

[0084] In this embodiment, if Fig.15 As shown, when slotting, the control switch 72 is closed, the slotting motor 27 and the water pump 65 work, and the direction of the lifting motor 32 is controlled by the forward and reverse switch 71, so that the hanging box 2 and the slotting cutter head 42 are lowered.

[0085] After the slotting is completed, the control switch 72 is turned off, and the lifting motor 32 is controlled to reverse through the forward and reverse switch 71, so that the hanging box 2 rises and resets.

[0086] In the present application, the slotting motor 27 is connected to electricity using an electric wire with a sufficient reserved length, and during the slotting process, the electric wire can be lowered to the hanging box 2.

[0087] The working principle of the present invention is:

[0088] In the initial state, the hanging box 2 and the slotting cutter head 42 are located above the hollow precast pile 100 .

[0089] The second knob 512 drives the screw rods 51 to rotate synchronously, thereby driving the adjustment seat 52 to move. The adjustment seat 52 drives the installation box 41 to move through the connecting rod 57 to adjust the overlapping depth of the slotting cutter head 42 and the hollow precast pile 100, which is the depth of the slot body opened.

[0090] The worm 411 is driven to rotate by the first knob 412 , and the worm 411 drives the worm wheel 49 and the mounting cylinder 48 to rotate, so as to adjust the vertical offset degree of the two slotting cutter heads 42 on the same side, and then adjust the slotting width.

[0091] Then, the slotting motor 27 and the water pump 65 are started by the control switch 72 , and the direction of the lifting motor 32 is controlled by the forward / reverse switch 71 .

[0092] When the slotting motor 27 rotates, it drives the transmission shaft 23 and the first driving gear 45 to rotate, and the first driven gear 46 meshing therewith rotates, so that the cutter shaft 47 and the slotting cutter head 42 rotate.

[0093] When the water pump 65 is working, water is sprayed out from the nozzle 63 to cool the slotting cutter head 42 and perform dust reduction treatment.

[0094] The lifting motor 32 drives the slotting cutter head 42 to descend to complete the opening of the slot body.

[0095] After the slot body is opened, the control switch 72 is turned off, and the lifting motor 32 is controlled to reverse through the forward and reverse switch 71, so that the hanging box 2 and the slotting cutter head 42 rise and reset.

[0096] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A grooving device for a precast concrete pile, comprising a hollow precast pile (100), wherein the hollow precast pile (100) is driven into a soil body (200), characterized in that: It also includes a seat plate (1), a hanging box (2), a lifting device, a slotting device and an adjusting device; The seat plate (1) is located directly above the hollow precast pile (100), the bottom of the seat plate (1) is fixedly connected to a support leg (1), the bottom of the outer wall of the support leg (1) is fixedly connected to an anchor plate (12), an anchor rod (13) is inserted into the anchor plate (12), and the anchor rod (13) is nailed into the soil (200), the hanging box (2) is located below the seat plate (1), and the lifting device is used to drive the hanging box (2) to move vertically; A U-shaped frame (21) is fixedly connected to the inner wall of each side plate of the hanging box (2); a driving cylinder (22) is rotatably connected to the U-shaped frame (21) and the side plate of the hanging box (2); a transmission shaft (23) is slidably connected to the driving cylinder (22); a transmission groove (24) is evenly arranged on the circumference of the transmission shaft (23); a transmission bar (25) slidably connected to the transmission groove (24) is fixedly connected to the inner wall of the driving cylinder (22); a first driven bevel gear (26) is fixedly connected to one end of the driving cylinder (22) close to the center of the hanging box (2); a slotted motor (27) is fixedly connected to the hanging box (2); the slotted motor (27) is provided with a first output shaft (28) extending vertically downward; a first driving bevel gear (29) meshing with the first driven bevel gear (26) is fixedly connected to the bottom of the first output shaft (28); The slotting device comprises a mounting box (41) and a slotting cutter head (42); a side plate of the mounting box (41) close to the hanging box (2) is rotatably connected to the transmission shaft (23); a sliding rod (43) is fixedly connected to one side of the mounting box (41); a sliding sleeve (44) is fixedly connected inside the hanging box (2); the sliding rod (43) is slidably connected to the sliding sleeve (44); one end of the transmission shaft (23) extending into the mounting box (41) is fixedly connected to a first driving gear (45); and the device further comprises a first driven gear (46) meshing with the first driving gear (45); a cutter shaft (47) is fixedly connected to the center of the first driven gear (46); and the slotting cutter head (42) is fixedly connected to the head of the cutter shaft (47); The adjusting device is used to adjust the distance between the installation box (41) and the hanging box (2).

2. The grooving equipment for precast concrete piles according to claim 1, characterized in that: A mounting cylinder (48) is rotatably connected inside the mounting box (41), and a avoidance hole is opened in the mounting cylinder (48) near the transmission shaft (23). The knife shaft (47) is rotatably connected in the mounting cylinder (48), and two knife shafts (47) are provided. The two knife shafts (47) are symmetrically arranged on both sides of the first driving gear (45). The outer ring of the mounting cylinder (48) is fixedly connected to a worm gear (49). A rotating shaft (410) is rotatably connected below the mounting box (41), and a worm (411) meshing with the worm gear (49) is fixedly connected to the rotating shaft (410), and a first knob (412) is fixedly connected to the head of the rotating shaft (410).

3. The grooving device for precast concrete piles according to claim 2, characterized in that: The lead angle of the worm (411) is smaller than the equivalent friction angle between the meshing teeth of the worm (411) and the worm wheel (49).

4. The grooving equipment for precast concrete piles according to claim 2, characterized in that: The outer wall of the installation tube (48) is symmetrically fixed with a limit block (413), and the outer wall of the side plate of the installation box (41) away from the hanging box (2) is symmetrically fixed with an arc-shaped limit frame (414) up and down, and the limit block (413) is slidably connected in the limit frame (414).

5. The grooving equipment for precast concrete piles according to claim 2, characterized in that: The outer wall of the side plate of the installation box (41) away from the hanging box (2) is provided with a scale line (415), and a pointer (416) is fixedly connected to the installation tube (48).

6. The grooving equipment for precast concrete piles according to claim 1, characterized in that: The adjusting device comprises a screw rod (51) and an adjusting seat (52); a right angle frame (53) is fixedly connected to the left rear corner and the right front corner of the hanging box (2); the screw rod (51) is rotatably connected to the side plate of the right angle frame (53); one end of the screw rod (51) located in the right angle frame (53) is fixedly connected to a second driven bevel gear (54); the other end of the screw rod (51) is rotatably connected to the U-shaped frame (21); a track groove (55) is provided on the side plate of the hanging box (2) at a position corresponding to the screw rod (51); a track rod (56) is fixedly connected to the track groove (55); The adjusting seat (52) is meshed with the screw rod (51) and is slidably connected to the track rod (56); a connecting rod (57) is hinged between the adjusting seat (52) and the installation box (41); a shaft rod (58) is rotatably connected to the center of the right-angle frame (53); a second driving bevel gear (59) meshed with the second driven bevel gear (54) is fixedly connected to the shaft rod (58); a transmission wheel (510) is fixedly connected to the bottom of the shaft rod (58); the two transmission wheels (510) are linked by a belt (511); and a second knob (512) is fixedly connected to the top of the left rear shaft rod (58).

7. The grooving equipment for precast concrete piles according to claim 1, characterized in that: The lifting device comprises a threaded barrel (31) and a lifting motor (32); the threaded barrel (31) has four rectangular arrays, the bottom of the threaded barrel (31) is fixedly connected to the hanging box (2), a threaded sleeve (33) is rotatably connected to the base plate (1), the threaded barrel (31) is meshed in the threaded sleeve (33), the outer wall of the threaded sleeve (33) is fixedly connected to a second driven gear (34), a cover body (35) is fixedly connected to the base plate (1), the cover body (35) covers the second driven gear (34) therein, a through hole is opened on the top plate of the cover body (35) at a position corresponding to the threaded barrel (31), the lifting motor (32) is fixedly connected to the cover body (35), the lifting motor (32) is provided with a second output shaft (36) vertically downward, the bottom of the second output shaft (36) is fixedly connected to a second driving gear (37), and each second driven gear (34) is meshed with the second driving gear (37).

8. The grooving device for precast concrete piles according to claim 7, characterized in that: A spray pipe (61) is fixedly connected to the bottom of the threaded cylinder (31), a support plate (62) is fixedly connected to the installation box (41), the spray pipe (61) is fixedly connected to the support plate (62), a spray head (63) facing the slotting cutter head (42) is fixedly connected to the head of the spray pipe (61), a water tank (64) is fixedly connected to the top of the threaded cylinder (31), a water pump (65) is fixedly connected to the seat plate (1), the inlet and outlet of the water pump (65) are respectively fixedly connected to a water inlet pipe (66) and a water outlet pipe (67), the water inlet pipe (66) and the water outlet pipe (67) are hoses, and the head of the water outlet pipe (67) is connected to the water tank (64).

9. The grooving device for precast concrete piles according to claim 8, characterized in that: The seat plate (1) is fixedly connected with a forward / reverse switch (71) and a control switch (72), and also includes an external power supply (73). The slotting motor (27) and the water pump (65) form a parallel circuit, and the parallel circuit forms a current loop with the external power supply (73) through the control switch (72). The lifting motor (32) forms a current loop with the external power supply (73) through the forward / reverse switch (71).

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