CN211113623U - Pile driver special for building - Google Patents

Abstract

The utility model belongs to the technical field of construction machinery, in particular to a pile driver special for construction, which comprises a main body unit and a drilling unit, wherein the drilling unit comprises a drill rod and a drill bit connected to the lower end of the drill rod; the drill bit sequentially comprises a reverse rotation cylinder, a middle cylinder and a drilling conical cylinder with a large upper end and a small lower end from top to bottom, and the reverse rotation cylinder is in a conical shape with a small upper end and a large lower end; the drilling conical barrel is provided with a spiral drilling plate, and a plurality of drilling teeth are uniformly distributed on the outer edge of the spiral drilling plate; the drilling conical barrel is detachably connected to the middle barrel, the lower part of the middle barrel is provided with a connecting groove and a sliding groove communicated with the connecting groove, and the sliding groove slides in and is hermetically connected with a fixed block; and a connecting rod matched with the connecting groove is arranged on the drilling conical cylinder, and a clamping groove is formed in the connecting rod. The pile driver of this scheme of use drills, and the pore wall can be tamped by automatic, and the stability of pore wall is good and closely knit degree is high, does not need a pre-buried steel casing, and whole process need not borrow soil moreover, clear hole, and operating procedure is few, and efficiency improves.

Description

Pile driver special for building

Technical Field

The utility model belongs to the technical field of construction machinery, concretely relates to construct special pile driver.

Background

The method is characterized in that a good foundation needs to be laid before the house is built, the existing house is built by piling through a pile driver, the pile driver can be divided into a plurality of types such as a hydraulic hammer pile driver, a spiral pile driver and a steam hammer pile driver, and the pile driver mainly drives a concrete precast pile or a steel pipe pile into the ground, so that the built house is firmer and is not easy to collapse.

The spiral pile driver is a pile driving device which drives a drill rod and a drill bit to spirally punch holes underground through a power head, and mainly comprises a top pulley block, a stand column, an inclined stay bar, a chassis, a traveling mechanism, a slewing mechanism, a hoisting mechanism, a control chamber, a hydraulic system and an electrical system. Piling using a screw pile driver comprises the steps of: the spiral pile driver is in place → the pile casing is embedded → the drill bit is slightly grounded and then rotates to open the drill → the drill bit is put down → the drilling is finished, the hole is cleared and the depth is measured → the steel reinforcement cage and the guide pipe are put in → the concrete pouring is carried out → the pile casing is pulled out and the pile head is cleaned, the silt is sunk and the backfilling is carried out, and the pile is formed. The application of the spiral pile driver to pile is mature and reliable, and is widely applied to the field of construction pile driving at present, but has some defects: the steel pile casing needs to be embedded before piling, soil taking and hole cleaning are needed in the piling process, the operation procedures are more, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is providing a construct special pile driver, reduce the operating procedure of pile to solve the problem that uses screw pile driver pile inefficiency.

In order to achieve the above purpose, the utility model discloses a scheme does: the pile driver special for the building comprises a main body unit and a drilling unit, wherein the drilling unit comprises a drill rod and a drill bit connected to the lower end of the drill rod, the drill bit sequentially comprises a counter-rotating cylinder, a middle cylinder and a drilling conical cylinder with the large upper end and the small lower end from top to bottom, the counter-rotating cylinder is conical with the small upper end and the large lower end, and the middle cylinder is a cylinder; the lower end of the drilling conical cylinder is provided with a plurality of front drilling teeth which are uniformly distributed along the circumferential direction of the drilling conical cylinder; the drilling conical barrel is provided with a spiral drilling plate, and a plurality of drilling teeth are uniformly distributed on the outer edge of the spiral drilling plate; the drilling conical cylinder is detachably connected to the middle cylinder.

The working principle and the beneficial effects of the scheme are as follows: when this scheme of use's pile driver carries out the pile, will creep into the toper section of thick bamboo earlier and install on the section of thick bamboo in the middle of, specific operating procedure is: the connecting rod is inserted into the connecting groove, and then the fixing block extends into the clamping groove. After the installation of the drilling conical barrel is completed, the drill bit is driven to drill downwards, and the drilling teeth of the spiral drilling plate smash soil rock, so that the drill bit can smoothly drill downwards. In the drilling process, under the effect of spiral drill plate, soil in the soil layer upwards discharges, and when soil upwards discharged, the upper end of middle section of thick bamboo, toper recipient can extrude soil to the outside, and meanwhile, ascending soil receives the reverse effort of terminal surface under the anti-rotation section of thick bamboo, and soil flows to middle section of thick bamboo, toper recipient outside, under the combined action of anti-rotation section of thick bamboo, middle section of thick bamboo and the toper recipient that drills into, and the pore wall is compacted. After the drilling is completed, the drill bit is lifted upwards, and because the anti-rotation barrel and the drilling conical barrel are designed to be conical, the anti-rotation barrel can effectively prevent soil from dropping on the conical extrusion barrel, and soil adhered to the drilling conical barrel can automatically fall off under the action of self gravity without manual cleaning.

The drilling conical barrel is detachably connected to the middle barrel, and can be replaced at any time when the drilling conical barrel is damaged, so that the use cost is reduced. The pile driver of this scheme of use drills, and the pore wall can be tamped by automation, and the stability of pore wall is good and closely knit degree is high, does not need pre-buried steel to protect a section of thick bamboo, and whole process need not borrow soil, clear hole moreover, and operating procedure is few, and efficiency obviously improves, compares with current drilling pore-forming technique, owing to do not arrange sediment, need not handle exhaust dregs, and environmental protection more obviously reduces construction cost moreover.

Optionally, the lower end of the drilling conical cylinder is provided with a plurality of front drilling teeth which are uniformly distributed along the circumference of the drilling conical cylinder. The front drilling teeth are arranged to ensure that the drill bit has enough strength when entering the soil, and when the drill bit drills downwards, the front drilling teeth firstly excavate the soil layer at the lower end and smash rocks at the soil layer at the lower end, so that the drill bit can work normally.

Optionally, a positioning block is arranged on the connecting rod, and a through groove matched with the positioning block is formed in the middle barrel; when the locating piece block was in logical groove, the fixed block was relative with the draw-in groove. When the installation creeps into a toper section of thick bamboo, with locating piece and logical groove block, the fixed block is relative with the draw-in groove this moment, ensures that the fixed block can stretch into in the draw-in groove smoothly.

Optionally, an oil storage cavity is formed in the middle cylinder, and hydraulic oil is filled in the oil storage cavity; the oil storage cavity is connected with a screw plunger through threads; a flow passage is connected between the oil storage cavity and the sliding groove. The quantity of hydraulic oil flowing into the sliding groove can be controlled by adjusting the depth of the screw plunger piston extending into the oil storage cavity, when the fixing block is required to extend into the sliding groove, the screw plunger piston is screwed to enable the screw plunger piston to extend into the oil storage cavity, the hydraulic oil in the oil storage cavity is extruded and then enters the sliding groove through the flow channel, and the fixing block in the hydraulic oil driving sliding groove extends outwards. When the fixed block needs to retract into the sliding groove, the plunger screw is screwed to move towards the outer side of the oil storage cavity, the volume and the pressure in the oil storage cavity become large, hydraulic oil flows back into the oil storage cavity, and meanwhile, the fixed block retracts into the sliding groove.

Optionally, a sealing plug is slidably and hermetically connected in the oil storage cavity, an elastic member is connected between the sealing plug and the oil storage cavity, and the sealing plug is in contact with one end of the plunger piston. The sealing plug can effectively prevent the leakage of the substance in the oil storage cavity.

Optionally, a limiting groove is formed in the oil storage cavity, and a limiting block clamped in the limiting groove is arranged on the sealing plug. The arrangement of the limiting groove and the limiting block can effectively prevent the sealing plug from being separated from the oil storage cavity.

Optionally, the connecting grooves are provided with 4, and the 4 connecting grooves are uniformly distributed along the circumferential direction of the middle barrel. 4 connecting grooves are arranged to connect and fix the drilling conical barrel well.

Optionally, the connecting grooves are provided with 3, and the 3 connecting grooves are uniformly distributed along the circumference of the middle barrel. The drilling conical barrel can be well connected and fixed by arranging 3 connecting grooves.

Optionally, the taper of the reverse rotation cylinder is 40-60 degrees, and the taper of the drilling conical cylinder is 20-45 degrees.

Optionally, the reverse-rotation barrel is provided with a plurality of spirally distributed crushing teeth. When the hole collapses in the drilling process, the crushing teeth on the reverse rotating cylinder are beneficial to crushing the soil body on the part covered by the cover, so that the drill bit can smoothly drill.

Drawings

Fig. 1 is a schematic structural diagram of a pile driver special for buildings in a first embodiment of the present invention;

fig. 2 is a front view of a drill of a pile driver special for construction according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of a drilling conical barrel of a pile driver special for buildings according to a first embodiment of the invention;

fig. 4 is a cross-sectional view of the middle cylinder of the pile driver special for construction in the first embodiment of the invention;

fig. 5 is a front view of a drill of a pile driver special for construction according to a second embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the drilling machine comprises a main body unit 10, a drill rod 20, a drill bit 30, a reverse rotation cylinder 31, an intermediate cylinder 32, a drilling conical cylinder 33, a spiral drilling plate 34, front drilling teeth 35, drilling teeth 36, crushing teeth 37, a connecting rod 40, a clamping groove 41, a positioning block 42, an oil storage cavity 50, a spring 51, a sealing plug 52, a stud plug 53, a limiting groove 54, a flow passage 55, a sliding groove 60, a fixing block 61, a connecting groove 62 and a through groove 63.

Example one

This embodiment is substantially as shown in fig. 1: the construction specific pile driver comprises a main unit 10 and a drilling unit, wherein the drilling unit can be controlled to perform drilling work by operating the main unit 10, and the specific structure belongs to the prior art, and will not be described in detail herein. The drilling unit comprises a drill rod 20 and a drill bit 30 connected to the lower end of the drill rod 20, wherein the drill bit 30 is detachably connected to the drill rod 20, and the drill bit 30 is connected to the drill rod 20 through fasteners such as bolts and nuts.

As shown in fig. 2, the drill 30 includes a reverse rotation cylinder 31, an intermediate cylinder 32 and a drilling conical cylinder 33 in sequence from top to bottom, the intermediate cylinder 32 is a cylinder, the reverse rotation cylinder 31 is a cone with a small upper end and a large lower end, the drilling conical cylinder 33 is a cone with a large upper end and a small lower end, and the lower end surface of the intermediate cylinder 32 is larger than the upper end surface of the drilling conical cylinder 33. The taper of the reverse rotation cylinder 31 is 40-60 degrees, the taper of the drilling conical cylinder 33 is 20-45 degrees, in the embodiment, the taper of the reverse rotation cylinder 31 is 45 degrees, and the taper of the drilling conical cylinder 33 is 30 degrees. The lower end of the drilling conical barrel 33 is welded with a plurality of front drilling teeth 35, the front drilling teeth 35 are evenly distributed along the circumferential direction of the drilling conical barrel 33, the front drilling teeth 35 guarantee that the drill bit 30 has enough strength when entering the soil, and when the drill bit 30 drills downwards, the front drilling teeth 35 firstly excavate the soil layer at the lower end and break rocks in the soil layer at the lower end, so that the drill bit 30 can work normally. An auger plate 34 is welded on the drilling conical barrel 33, a plurality of drill teeth 36 are uniformly distributed on the outer edge of the auger plate 34, and the drill teeth 36 are mainly used for breaking rocks in a soil layer.

The reverse rotating cylinder 31 is welded on the upper surface of the middle cylinder 32, and the drilling conical cylinder 33 is detachably connected on the lower surface of the middle cylinder 32 in the following way: the lower part of the middle cylinder 32 is provided with a plurality of uniformly distributed connecting grooves 62 and a sliding groove 60 communicated with the connecting grooves 62, the connecting grooves 62 are provided with 3 or 4 suitable ones, in the embodiment, 4 ones are provided, and the sliding groove 60 is slidably and hermetically connected with a fixing block 61, as shown in fig. 4. The drilling tapered cylinder 33 is welded with a connecting rod 40 which can be matched with the connecting groove 62, and the connecting rod 40 is provided with a clamping groove 41 which is matched with the fixing block 61, as shown in fig. 3. The connecting rod 40 is further welded with a positioning block 42, the middle barrel 32 is provided with a through groove 63 matched with the positioning block 42, the positioning block 42 is clamped in the through groove 63, the fixing block 61 can be ensured to be opposite to the clamping groove 41, and the fixing block 61 can extend into the clamping groove 41.

An oil storage cavity 50 is formed in the middle cylinder 32, and hydraulic oil is filled in the oil storage cavity 50; a sealing plug 52 is slidably and sealingly connected in the oil chamber 50, and an elastic member, in this embodiment a spring 51, is connected between the sealing plug 52 and the oil chamber 50. A limiting groove 54 is formed in the oil storage cavity 50, a limiting block clamped in the limiting groove 54 is welded on the sealing plug 52, and the limiting groove 54 and the limiting block are arranged to effectively prevent the sealing plug 52 from being separated from the oil storage cavity 50. A screw plunger 53 is screwed into the oil chamber 50, one end of the screw plunger 53 is exposed, and the other end is in contact with the sealing plug 52. A flow passage 55 is connected between the oil storage chamber 50 and the slide groove 60, and hydraulic oil in the oil storage chamber 50 can flow into the slide groove 60 through the flow passage 55.

When the pile driver of the scheme is used for piling, the drilling conical barrel 33 is firstly installed on the middle barrel 32, and the concrete operation steps are as follows: the connecting rod 40 is inserted into the connecting groove 62, the positioning block 42 is ensured to be clamped with the through groove 63, the screw plunger 53 is screwed, the screw plunger 53 extends into the oil storage cavity 50, hydraulic oil in the oil storage cavity 50 is extruded and then enters the sliding groove 60 through the flow passage 55, and the fixed block 61 in the sliding groove 60 is driven by the hydraulic oil to extend outwards and enter the clamping groove 41. After the installation of the drilling conical barrel 33 is completed, the drill bit 30 is driven to drill downwards, the drill bit 30 moves downwards while rotating, the front drill teeth 35 firstly dig the soil layer at the lower end, and the drill teeth 36 of the spiral drill plate 34 smash the rock in the soil layer, so that the drill bit 30 can smoothly drill downwards. In the drilling process, under the action of the spiral drilling plate 34, soil in a soil layer is upwards discharged, when the soil is upwards discharged, the upper ends of the middle cylinder 32 and the conical extrusion cylinder can outwards extrude the soil, meanwhile, the upwards soil is subjected to reverse acting force of the lower end face of the reverse rotation cylinder 31, the soil flows to the outer sides of the middle cylinder 32 and the conical extrusion cylinder, and under the combined action of the reverse rotation cylinder 31, the middle cylinder 32 and the drilling conical cylinder 33, the hole wall is compacted. After drilling, the drill bit 30 is lifted upwards, and because the reverse rotation cylinder 31 and the drilling conical cylinder 33 are both designed to be conical, the reverse rotation cylinder 31 can effectively prevent soil from falling on the conical extrusion cylinder, soil adhered to the drilling conical cylinder 33 can automatically fall off under the action of self gravity, and manual cleaning is not needed. The pile driver of this scheme of use drills, and the pore wall can be tamped by automation, and the stability of pore wall is good and closely knit degree is high, does not need pre-buried steel to protect a section of thick bamboo, and whole process need not borrow soil, clear hole moreover, and operating procedure is few, and efficiency is obviously high, compares with current drilling pore-forming technique, owing to do not arrange sediment, need not handle exhaust dregs, and environmental protection more obviously reduces construction cost moreover.

Example two

The present embodiment is different from the first embodiment in that: as shown in fig. 5, the reverse rotation cylinder 31 is further welded with a plurality of spirally distributed crushing teeth 37, and the crushing teeth 37 and the reverse rotation cylinder 31 form an included angle of 90 degrees. When the hole collapses in the drilling process, the crushing teeth 37 on the reverse-rotation barrel 31 are helpful for crushing the soil on the part of the masked part, and the drill bit 30 can be ensured to smoothly pull out the drill.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention.

Claims (10)

1. The pile driver special for the building comprises a main body unit and a drilling unit, wherein the drilling unit comprises a drill rod and a drill bit connected to the lower end of the drill rod; the method is characterized in that: the drill bit sequentially comprises a reverse rotation cylinder, a middle cylinder and a drilling conical cylinder with a large upper end and a small lower end from top to bottom, and the reverse rotation cylinder is in a conical shape with a small upper end and a large lower end; the drilling conical barrel is provided with a spiral drilling plate, and a plurality of drilling teeth are uniformly distributed on the outer edge of the spiral drilling plate; the drilling conical barrel is detachably connected to the middle barrel, the lower part of the middle barrel is provided with a connecting groove and a sliding groove communicated with the connecting groove, and the sliding groove slides in and is hermetically connected with a fixed block; the drilling conical cylinder is provided with a connecting rod matched with the connecting groove, and the connecting rod is provided with a clamping groove capable of being clamped with the fixing block.

2. Pile driver special for building according to claim 1, characterized in that: the lower end of the drilling conical cylinder is provided with a plurality of front drilling teeth which are uniformly distributed along the circumferential direction of the drilling conical cylinder.

3. Pile driver special for building according to claim 2, characterized in that: a positioning block is arranged on the connecting rod, and a through groove matched with the positioning block is formed in the middle barrel; when the locating piece block was in logical groove, the fixed block was relative with the draw-in groove.

4. Pile driver special for building according to claim 3, characterized in that: an oil storage cavity is formed in the middle cylinder, and hydraulic oil is filled in the oil storage cavity; the oil storage cavity is connected with a screw plunger through threads; a flow passage is connected between the oil storage cavity and the sliding groove.

5. Pile driver special for building according to claim 4, characterized in that: the sealing plug slides in the oil storage cavity and is connected with the oil storage cavity in a sealing mode, the elastic piece is connected between the sealing plug and the oil storage cavity, and the sealing plug is in contact with one end of the screw plunger.

6. Pile driver special for building according to claim 5, characterized in that: a limiting groove is formed in the oil storage cavity, and a limiting block clamped in the limiting groove is arranged on the sealing plug.

7. Pile driver special for building according to claim 1, characterized in that: the spread groove is equipped with 4, and 4 spread grooves are along the circumference evenly distributed of middle section of thick bamboo.

8. Pile driver special for building according to claim 1, characterized in that: the spread groove is equipped with 3, and 3 spread grooves are along the circumference evenly distributed of middle section of thick bamboo.

9. Pile driver special for construction according to any of claims 1-8, characterised in that: the taper of the reverse rotation cylinder is 40-60 degrees, and the taper of the drilling conical cylinder is 20-45 degrees.

10. Pile driver special for construction according to any of claims 1-8, characterised in that: the reverse-rotation cylinder is provided with a plurality of crushing teeth which are spirally distributed.

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