CN213773367U

CN213773367U - Pile cutting machine for constructional engineering

Info

Publication number: CN213773367U
Application number: CN202022769882.1U
Authority: CN
Inventors: 江鸿超; 张锋; 冯雪峰; 程立忠
Original assignee: Anhui Tianrun Construction Engineering Group Co ltd
Current assignee: Anhui Tianrun Construction Engineering Group Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-23
Anticipated expiration: 2030-11-24

Abstract

The application relates to a pile cutting machine for constructional engineering, which comprises a fixing device, a plurality of hydraulic cylinders installed on the fixing device, a drill rod installed on a piston rod of the hydraulic cylinder and an installation mechanism, wherein the installation mechanism comprises a fixed seat fixedly connected to the end part of the piston rod of the hydraulic cylinder, the side wall of the fixed seat, which is far away from the hydraulic cylinder, is provided with an installation groove, a plurality of chutes extending along the radial direction of the drill rod are formed in the fixed seat, the chutes and the installation groove of the fixed seat are communicated, a butt joint block is connected in the chutes in a sliding manner, an installation cavity is further formed in the fixed seat, the installation cavity of the fixed seat is communicated with the chutes, a butt joint ring is connected in the installation cavity of the fixed seat in a sliding manner, one end, which is close to the butt joint block, of each connecting rod, one end, which is far away from the butt joint ring, is hinged to the side wall of the butt joint block; and a driving and moving assembly for driving the butting ring to slide along the axial direction of the drill rod is further arranged in the fixed seat. This application has the effect of being convenient for change the drill rod.

Description

Pile cutting machine for constructional engineering

Technical Field

The application designs the technical field of cut stake equipment, especially relates to a cut stake machine for building engineering.

Background

The pile cutting machine is one kind of engineering machine suitable for fast cutting pile head in pile foundation engineering. The pile cutting machine provides pressure for a plurality of oil cylinders of the pile cutting machine through a power source, and the oil cylinders drive drill rods to extrude a pile body so as to cut off a pile head.

The related technology can refer to Chinese utility model patent with the publication number of CN206220093U, which discloses a multi-drill rod hydraulic pile cutting machine, comprising a suspension device, drill rods, a hydraulic cylinder fixing device and a hydraulic cylinder, wherein the bottom of the suspension device is provided with a suspension ring, the suspension device is connected with the hydraulic cylinder fixing device through the suspension ring, a high-strength steel wire rope and a suspension ring, the suspension ring is fixed on the hydraulic cylinder fixing device, the hydraulic cylinder fixing device is provided with six hydraulic cylinder fixing devices, the hydraulic cylinder fixing devices are fixedly connected through a convex connecting end, a concave connecting end and a pin shaft, the left and right ends of the hydraulic cylinder fixing device are respectively provided with a convex connecting end and a concave connecting end, the hydraulic cylinder is arranged in a hydraulic cylinder mounting hole, the hydraulic cylinder and the hydraulic cylinder fixing device are fixedly connected through a front hydraulic cylinder fixing end cover, a rear hydraulic cylinder fixing end cover and a bolt, a drill rod is fixedly installed on a piston rod of the hydraulic cylinder, and a hydraulic cylinder oil port is formed at the left end of the hydraulic cylinder.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the drill rod of the device is fixedly arranged on the piston rod of the hydraulic cylinder, and when the drill rod is damaged, the replacement process of the drill rod is troublesome.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the replacement of the drill rod, the application provides a pile cutting machine for constructional engineering.

The application provides a pile cutter for building engineering adopts following technical scheme:

the utility model provides a pile cutter for building engineering, includes fixing device, installs a plurality of pneumatic cylinders on fixing device and installs the drill rod on the piston rod of pneumatic cylinder, its characterized in that: the drill rod fixing device comprises a fixing seat fixedly connected to the end part of a piston rod of a hydraulic cylinder, wherein a mounting groove for inserting the drill rod is formed in the side wall, away from the hydraulic cylinder, of the fixing seat, a plurality of sliding grooves extending along the radial direction of the drill rod are formed in the fixing seat, the sliding grooves of the fixing seat are communicated with the mounting groove, a butting block is connected in each sliding groove of the fixing seat in a sliding mode, a mounting cavity is further formed in the fixing seat and communicated with the sliding grooves, a butting ring is connected in the mounting cavity of the fixing seat in a sliding mode, one end, close to the butting block, of each butting ring is hinged to the side wall of the butting block, and one end, away from the butting ring, of each connecting rod is hinged to the side wall of the butting block; and a driving and moving assembly for driving the butting ring to slide along the axial direction of the drill rod is further arranged in the fixed seat.

Through adopting above-mentioned technical scheme, when the piston rod fixed connection of drill rod and pneumatic cylinder is needed, operating personnel can inject the one end of drill rod in the fixing base mounting groove, operating personnel accessible drives the direction that moves the subassembly drive butt hoop and keep away from the butt piece and removes then, a plurality of butt pieces remove to the direction that is close to the drill rod under the effect of butt ring and a plurality of connecting rod, the lateral wall of tight drill rod is supported to the tip until a plurality of butt pieces, thereby alright fix the drill rod on the piston rod of pneumatic cylinder. When needs pull down the drill rod from the piston of pneumatic cylinder, operating personnel accessible drives the subassembly and makes the butt hoop move near the direction of butt piece, and a plurality of butt pieces separate with the drill rod under the effect of butt ring and a plurality of connecting rod to alright pull out the drill rod from the fixing base, and then be convenient for change the drill rod.

Preferably, the driving and moving assembly comprises a first fixed block and a second fixed block fixedly connected to the side wall of the abutting ring, a lead screw rotatably connected in the mounting cavity of the fixed seat, and a guide rod fixed in the mounting cavity of the fixed seat, the first fixed block and the second fixed block are respectively arranged on two sides of the abutting ring, the lead screw is in threaded connection with the first fixed block, the guide rod penetrates through the second fixed block, and the second fixed block is connected to the guide rod in a sliding manner along the axial direction of the drill rod; and a driving assembly for driving the lead screw to rotate is further arranged in the fixed seat.

By adopting the technical scheme, when the butting ring needs to be driven to move, an operator can drive the screw rod to rotate through the driving assembly, and the butting ring can move along the axial direction of the drill rod under the combined action of the first fixing block, the second fixing block, the screw rod and the guide rod.

Preferably, the drive assembly is including rotating the axis of rotation of connecting in the fixing base and keeping away from the butt joint piece lateral wall, the cover is established and is fixed in the axis of rotation and is close to the driving gear of butt joint piece one end and the cover is established and is fixed in the lead screw and keeps away from the driven gear of butt joint piece one end, driving gear and driven gear meshing.

Through adopting above-mentioned technical scheme, when needs drive lead screw rotates, the rotatable axis of rotation of operating personnel rotates, and the axis of rotation rotates the drive gear and rotates, and the drive gear rotates drive driven gear and rotates, and driven gear rotates alright drive lead screw and rotates.

Preferably, the side wall of the fixed seat far away from the hydraulic cylinder is provided with a yielding groove, one end of the rotating shaft far away from the driving gear is fixedly connected with an inner hexagonal nut, and the inner hexagonal nut is located in the yielding groove of the fixed seat.

Through adopting above-mentioned technical scheme, when needs drive axis of rotation rotates, thereby operating personnel accessible allen key rotates interior hexagon nut and drives the axis of rotation and rotate, and under the normal condition, interior hexagon nut is in the groove of stepping down of fixing base to the probability that the axis of rotation takes place to warp because of waiting the pile body that cuts and axis of rotation contact messenger.

Preferably, the side wall of the drill rod is provided with a limiting groove, the end face of the butt joint block close to the drill rod is provided with an inserting part, and the inserting part of the butt joint block is in inserting fit with the limiting groove of the drill rod.

Through adopting above-mentioned technical scheme, when the grafting portion of butt piece injects the spacing inslot of drill rod, increased the joint strength between butt piece and the drill rod to make drill rod and fixing base be connected more firmly.

Preferably, one end of the drill rod, which is far away from the hydraulic cylinder, is provided with a multi-pyramid-shaped spike part.

By adopting the technical scheme, the multi-pyramid-shaped sharp-pointed part is more beneficial to the drill rod to pierce the pile body.

Preferably, the lateral wall of butt joint piece is provided with the dovetail block, the lateral wall of the installation cavity of fixing base is provided with the dovetail groove that leads the dovetail block, the dovetail groove of fixing base extends along the radial of drill rod.

Through adopting above-mentioned technical scheme, the dovetail of fixing base has the effect of direction to the forked tail piece to the probability that the offset takes place in the in-process of the radial slippage of butt joint piece along the drill rod has been reduced.

Preferably, a plurality of balls are embedded in the side wall of the dovetail block.

Through adopting above-mentioned technical scheme, the frictional force between the dovetail of forked tail piece and fixing base has been alleviateed in the setting of a plurality of balls to make the butt joint piece more steady at the in-process that removes.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the piston rod fixed connection of drill rod and pneumatic cylinder is needed, operating personnel can inject the one end of drill rod in the fixing base mounting groove, then operating personnel accessible drives the direction that the butt hoop was kept away from the butt piece and removes that the subassembly drives the butt hoop, and a plurality of butt pieces are to the direction removal that is close to the drill rod under the effect of butt ring and a plurality of connecting rod, and the tip of up to a plurality of butt pieces supports the lateral wall of tight drill rod to alright fix the drill rod on the piston rod of pneumatic cylinder. When the drill rod needs to be detached from the piston of the hydraulic cylinder, an operator can drive the abutting ring to move towards the abutting blocks through the driving assembly, and the abutting blocks are separated from the drill rod under the action of the abutting ring and the connecting rods, so that the drill rod can be pulled out of the fixed seat, and the drill rod is convenient to replace;

2. when the rotating shaft needs to be driven to rotate, an operator can rotate the inner hexagon nut through the inner hexagon wrench so as to drive the rotating shaft to rotate, and the inner hexagon nut is arranged in the abdicating groove of the fixing seat in a normal state, so that the probability of deformation of the rotating shaft caused by the contact of a pile body to be cut off and the rotating shaft is reduced;

3. the dovetail groove of the fixing seat has a guiding effect on the dovetail block, so that the probability of deviation of the abutting block in the radial sliding process of the drill rod is reduced.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial sectional view of the holder in the embodiment of the present application.

Description of reference numerals: 1. a fixing device; 2. a hydraulic cylinder; 3. a drill rod; 31. a spike portion; 32. a limiting groove; 4. an installation mechanism; 41. a fixed seat; 411. mounting grooves; 412. a chute; 413. a mounting cavity; 414. a yielding groove; 415. a dovetail groove; 42. a butting block; 421. a plug-in part; 422. a dovetail block; 43. a butting ring; 44. a connecting rod; 45. a driving and moving assembly; 451. a first fixed block; 452. a lead screw; 453. a second fixed block; 454. a guide bar; 46. a drive assembly; 461. a rotating shaft; 462. a driving gear; 463. a driven gear; 464. a hexagon socket nut; 5. and a ball.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a cut stake machine for building engineering. With reference to fig. 1, a pile cutter for construction work comprises a fixing device 1, a hydraulic cylinder 2, a drill rod 3 and a mounting mechanism 4. Pneumatic cylinder 2 is provided with a plurality ofly, and a plurality of pneumatic cylinders 2 set up around fixing device 1's axis, and a plurality of pneumatic cylinders 2 are installed on fixing device 1. The drill rods 3 are provided with a plurality of groups, the installation mechanisms 4 are also provided with a plurality of groups, the drill rods 3, the hydraulic cylinders 2 and the installation mechanisms 4 are arranged in a one-to-one correspondence mode, and the installation mechanisms 4 are used for installing the drill rods 3 on piston rods of the hydraulic cylinders 2. In order to facilitate the drill rod 3 to break the pile body, a multi-pyramid-shaped sharp-pointed part 31 is arranged at one end of the drill rod 3 away from the hydraulic cylinder 2, and the sharp-pointed part 31 of the drill rod 3 can be in a triangular pyramid shape.

Referring to fig. 2, each set of mounting mechanisms 4 includes a fixed base 41, an abutment block 42, an abutment ring 43, a connecting rod 44, a driving assembly 45, and a driving assembly 46. The fixing base 41 is cylindrical, and the radius of the fixing base 41 is larger than that of the piston rod of the hydraulic cylinder 2. The movable end of the piston rod of the hydraulic cylinder 2 is inserted into the fixed seat 41, and the piston rod of the hydraulic cylinder 2 is fixed on the fixed seat 41 through two hexagon socket head cap bolts. The lateral wall that fixing base 41 kept away from 2 one ends of pneumatic cylinder has seted up mounting groove 411, and fixing base 41's mounting groove 411 is used for grafting drill rod 3, and fixing base 41's mounting groove 411 is cylindrical groove, and fixing base 41's mounting groove 411 extends along drill rod 3's axial. The mounting cavity 413 is formed in the fixing seat 41, the mounting cavity 413 of the fixing seat 41 is annular, the abutting ring 43 is also annular, the mounting groove 411 of the fixing seat 41, the abutting ring 43 and the mounting cavity 413 of the fixing seat 41 are coaxially arranged, and the radiuses of the mounting groove 411, the abutting ring 43 and the mounting cavity 413 of the fixing seat 41 are sequentially increased. Two sliding grooves 412 are formed in the fixing seat 41, and the two sliding grooves 412 are arranged in a collinear manner and extend along the radial direction of the drill rod 3. One end of the sliding groove 412 of each fixing seat 41 is communicated with the mounting groove 411 of the fixing seat 41, and the other end thereof is communicated with the mounting cavity 413 of the fixing seat 41. All slide in the spout 412 of every fixing base 41 and be connected with butt block 42, butt block 42 is the rectangular block, and butt block 42 has seted up grafting portion 421 near the terminal surface of drill rod 3, and the cross-section of grafting portion 421 of butt block 42 is isosceles trapezoid shape, and spacing groove 32 has been seted up to the week lateral wall of drill rod 3, and the cross-section of spacing groove 32 of drill rod 3 is isosceles trapezoid shape, and the grafting portion 421 of butt block 42 is pegged graft with spacing groove 32 of drill rod 3 and is cooperated. The side wall of the abutment block 42 abutting against the drill rod 3 is set in an arc shape abutting against the side wall of the drill rod 3. The one end that butt ring 43 is close to butt piece 42 articulates there are a plurality of connecting rods 44, and a plurality of connecting rods 44 set up around the axial of drill rod 3, and connecting rod 44 and butt piece 42 one-to-one set up, and the bottom that connecting rod 44 kept away from butt ring 43 articulates in the lateral wall that butt piece 42 is close to butt ring 43.

Referring to fig. 2, the driving assembly 45 is used for driving the abutting ring 43 to move along the axial direction of the drill rod 3, and the driving assembly 45 includes a first fixing block 451, a second fixing block 453, a lead screw 452, and a guide rod 454. The first fixing block 451 and the second fixing block 453 are both fixed to the outer sidewall of the abutting ring 43 and are respectively disposed at two sides of the abutting ring 43, the lead screw 452 is rotatably connected to the sidewall of the mounting cavity 413 of the fixing base 41 through a bearing, the guide rod 454 is fixed to the sidewall of the mounting cavity 413 of the fixing base 41, the guide rod 454 and the lead screw 452 are respectively disposed at two sides of the drill rod 3, and the guide rod 454 is parallel to the lead screw 452. The screw shaft 452 is threadedly coupled to the first fixing block 451, the guide rod 454 is disposed to penetrate through the second fixing block 453, and the second fixing block 453 is slidably coupled to the guide rod 454 in the axial direction of the drill rod 3, so as to drive the abutting ring 43 to move in the axial direction of the drill rod 3.

Referring to fig. 2, the driving assembly 46 is used for driving the lead screw 452 to rotate, and the driving assembly 46 includes a rotating shaft 461, a driving gear 462, a driven gear 463 and an inner hexagonal nut 464. The rotating shaft 461 is rotatably connected to the side wall of the fixing base 41 away from the hydraulic cylinder 2 through a bearing, the driving gear 462 is fixedly connected to one end of the rotating shaft 461 close to the hydraulic cylinder 2, the driven gear 463 is sleeved and fixed to one end of the screw rod 452 away from the hydraulic cylinder 2, and the driven gear 463 is meshed with the driving gear 462. In order to reduce the probability of deformation of the rotating shaft 461 caused by the contact between the pile body and the rotating shaft 461, the end surface of the fixed seat 41 away from the hydraulic cylinder 2 is provided with an abdicating groove 414, and the abdicating groove 414 of the fixed seat 41 is arranged coaxially with the rotating shaft 461. The socket head nut 464 is fixedly connected to an end of the rotating shaft 461 away from the driving gear 462, and the socket head nut 464 is disposed in the recess 414 of the fixing base 41.

Referring to fig. 2, in order to reduce the probability of the abutment block 42 shifting in the process of sliding in the radial direction of the drill rod 3, a dovetail block 422 is fixed to the side wall of the abutment block 42 away from the abutment ring 43, a dovetail groove 415 is formed in the inner bottom wall of the mounting cavity 413 of the fixing base 41, and the dovetail groove 415 of the fixing base 41 extends in the radial direction of the drill rod 3. The dovetail block 422 slides in the dovetail groove 415 of the holder 41 in the radial direction of the drill rod 3. In order to increase the smoothness of the sliding of the dovetail block 422 in the dovetail groove 415 of the fixed seat 41, a plurality of balls 5 are embedded in the bottom wall of the dovetail block 422, the plurality of balls 5 are sequentially arranged at intervals along the radial direction of the drill rod 3, and the side wall of each ball 5 abuts against the inner bottom wall of the dovetail groove 415 of the fixed seat 41.

The implementation principle of the pile cutting machine for the building engineering is as follows:

when the drill rod 3 is required to be fixedly connected with the piston rod of the hydraulic cylinder 2, an operator can insert one end of the drill rod 3 into the mounting groove 411 of the fixed seat 41, then, the operator can rotate the socket nut 464 by using a socket wrench to rotate the rotating shaft 461, the rotating shaft 461 rotates to drive the driving gear 462 to rotate, the driving gear 462 rotates to drive the driven gear 463 to rotate, the driven gear 463 rotates to drive the lead screw 452 to rotate, the first fixing block 451 and the second fixing block 453 move along the axial direction of the drill rod 3 under the combined action of the lead screw 452 and the guide rod 454, thereby driving the abutting ring 43 to move along the axial direction of the drill rod 3, the abutting blocks 42 move towards the direction close to the drill rod 3 under the action of the abutting ring 43 and the connecting rods 44 until the inserting parts 421 of the abutting blocks 42 are inserted into the limiting grooves 32 of the drill rod 3, so that the drill rod 3 can be fixed on the piston rod of the hydraulic cylinder 2.

When the drill rod 3 needs to be detached from the piston of the hydraulic cylinder 2, the operator can rotate the socket nut 464 reversely by the socket wrench so as to move the abutment ring 43 toward the abutment block 42, and the transmission process is similar to the above process and will not be described again. The plurality of abutment blocks 42 are separated from the drill rod 3 by the abutment ring 43 and the plurality of connecting rods 44, so that the drill rod 3 can be pulled out of the fixing seat 41, and the drill rod 3 can be replaced conveniently.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A pile cutter for constructional engineering, comprising a fixing device (1), a plurality of hydraulic cylinders (2) mounted on the fixing device (1) and a drill rod (3) mounted on the piston rod of the hydraulic cylinder (2), characterized in that: the drill rod fixing device is characterized by further comprising an installation mechanism (4) used for connecting a piston rod of the hydraulic cylinder (2) and the drill rod (3), wherein the installation mechanism (4) comprises a fixed seat (41) fixedly connected to the end part of the piston rod of the hydraulic cylinder (2), the side wall, far away from the hydraulic cylinder (2), of the fixed seat (41) is provided with an installation groove (411) used for inserting the drill rod (3), a plurality of sliding grooves (412) extending along the radial direction of the drill rod (3) are formed in the fixed seat (41), the sliding grooves (412) of the fixed seat (41) are communicated with the installation groove (411), a butting block (42) is connected in each sliding groove (412) of the fixed seat (41) in a sliding mode, an installation cavity (413) is further formed in the fixed seat (41), the installation cavity (413) of the fixed seat (41) is communicated with the sliding grooves (412), and a butting ring (43) is connected in the installation cavity (413) of the fixed seat (41) in a sliding mode, one end, close to the abutting block (42), of the abutting ring (43) is hinged with a plurality of connecting rods (44), and one end, far away from the abutting ring (43), of each connecting rod (44) is hinged to the side wall of the abutting block (42); and a driving and moving assembly (45) for driving the abutting ring (43) to slide along the axial direction of the drill rod (3) is further arranged in the fixed seat (41).

2. The pile cutting machine for building engineering according to claim 1, characterized in that: the driving and moving assembly (45) comprises a first fixing block (451) and a second fixing block (453) which are fixedly connected to the side wall of the abutting ring (43), a lead screw (452) which is rotatably connected into the mounting cavity (413) of the fixing seat (41) and a guide rod (454) which is fixed into the mounting cavity (413) of the fixing seat (41), the first fixing block (451) and the second fixing block (453) are respectively arranged on two sides of the abutting ring (43), the lead screw (452) is in threaded connection with the first fixing block (451), the guide rod (454) penetrates through the second fixing block (453), and the second fixing block (453) is connected to the guide rod (454) in a sliding manner along the axial direction of the drill rod (3); and a driving assembly (46) for driving the lead screw (452) to rotate is further arranged in the fixed seat (41).

3. The pile cutting machine for building engineering according to claim 2, characterized in that: the driving assembly (46) comprises a rotating shaft (461) which is rotatably connected to the side wall of the fixed seat (41) far away from the abutting block (42), a driving gear (462) which is fixedly sleeved on one end of the rotating shaft (461) close to the abutting block (42) and a driven gear (463) which is fixedly sleeved on one end of the screw rod (452) far away from the abutting block (42), wherein the driving gear (462) is meshed with the driven gear (463).

4. A pile cutter for constructional engineering as claimed in claim 3, wherein: the side wall that pneumatic cylinder (2) was kept away from in fixing base (41) has seted up groove of stepping down (414), the one end rigid coupling that driving gear (462) was kept away from in axis of rotation (461) has hexagon socket head cap nut (464), hexagon socket head cap nut (464) are located groove of stepping down (414) of fixing base (41).

5. The pile cutting machine for building engineering according to claim 1, characterized in that: the drill rod structure is characterized in that a limiting groove (32) is formed in the side wall of the drill rod (3), an insertion part (421) is arranged on the end face, close to the drill rod (3), of the butt joint block (42), and the insertion part (421) of the butt joint block (42) is in insertion fit with the limiting groove (32) of the drill rod (3).

6. The pile cutting machine for building engineering according to claim 5, characterized in that: one end of the drill rod (3) far away from the hydraulic cylinder (2) is provided with a multi-pyramid-shaped sharp thorn part (31).

7. The pile cutting machine for building engineering according to claim 1, characterized in that: the lateral wall of butt joint piece (42) is provided with dovetail block (422), the lateral wall of installation cavity (413) of fixing base (41) is provided with dovetail (415) that leads dovetail block (422), dovetail (415) of fixing base (41) are along the radial extension of drill rod (3).

8. The pile cutter for building engineering according to claim 7, characterized in that: the side wall of the dovetail block (422) is embedded with a plurality of balls (5).