Pile cutting equipment

Abstract

The pile cutting equipment comprises a motor assembly, a driving gear, a saw body shell and a cutting component, the motor assembly comprises a motor shell and a motor, and the motor is arranged in the motor shell; a transmission shaft on the motor is connected with the driving gear, the driving gear is arranged in the saw body shell, and the saw body shell is fixedly connected with the motor shell; a cutting component is arranged at one end of the saw body shell, and teeth meshed with the driving gear are arranged outside a saw blade of the cutting component. According to the equipment, cutting is started from the side away from a person during pile cutting, and the person is safer if a saw blade is broken; the transmission mode is tooth meshing transmission, and compared with the mode that a traditional annular saw conducts transmission through friction force, the transmission efficiency is high, and objects with higher strength can be cut.

Description

Technical Field

[0001] The present invention relates to the technical field of power tools, and in particular to a pile cutting device. Background Art

[0002] In construction, it is necessary to level the ground and remove mud piles, wooden piles, etc. Currently, the existing pile cutting devices cut in the way of a trolley cooperating with a circular saw. However, when the circular saw cuts a pile, the cutting depth is limited by the radius of the circular saw blade and cannot go deep. It is necessary to adjust the position multiple times or replace a larger saw blade. The larger saw blade is prone to potential risks. And when adjusting the position to cut from the opposite side, space on the opposite side is required. If the pile is close to a corner, it is even more inconvenient to remove it in this way. Although the existing ring saw can cut beyond the center of the saw blade, since the saw blade is annular, when cutting a pile, if the saw blade is inclined, it is easy to cause the saw blade to break, and the cutting position is close to the operator. Coupled with the saw blade rotating at high speed and pushing the saw body, the human body leans forward, which is easy to cause dangerous accidents. Moreover, currently, the ring saw often drives the saw blade to rotate through friction, and its transmission efficiency is low, making it difficult to handle the cutting of piles with greater strength. Summary of the Invention

[0003] The present invention aims at the problems existing in the prior art and provides a pile cutting device.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a pile cutting device, including a motor assembly, a driving gear, a saw body housing, and a cutting component. The motor assembly includes a motor housing and a motor, and the motor is arranged inside the motor housing; the transmission shaft on the motor is connected to the driving gear, the driving gear is arranged inside the saw body housing, and the saw body housing is fixedly connected to the motor housing; one end of the saw body housing is provided with a cutting component, and teeth meshing with the driving gear are arranged outside the saw blade of the cutting component.

[0005] Preferably, the pile cutting device further includes an auxiliary component, and the cutting component is compatible with a conventional ring saw blade through the provided auxiliary component.

[0006] Preferably, the cutting component includes a saw blade, extrusion rollers, adjusting ears, a longitudinal adjusting assembly, and a screw; the longitudinal adjusting assembly is slidably arranged on the side of the saw body housing away from the motor, the longitudinal adjusting assembly includes upper and lower symmetrically arranged parts, and adjusting ears are fixedly arranged on both side edges at both ends of the longitudinal adjusting assembly; the adjusting ears of the upper and lower symmetrically arranged parts of the longitudinal adjusting assembly are threadedly connected to the same screw, and the threads of the screws corresponding to the adjusting ears of the upper and lower parts of the longitudinal adjusting assembly are in reverse directions. The upper end of the screw passes through the corresponding through hole provided on the saw body housing and is rotatably connected thereto, and a knob is fixedly arranged at the top end of the screw; extrusion rollers are respectively rotatably arranged at both ends of the inner side wall of the longitudinal adjusting assembly through rotating shafts, a saw blade is arranged between the two extrusion rollers symmetrically arranged in the upper and lower parts of the longitudinal adjusting assembly, grooves are arranged on both the upper and lower sides of the saw blade, and the grooves are matched with the protrusions arranged on the extrusion rollers. Tooth teeth are arranged on the outer ring of the saw blade, and tooth edges are arranged on the inner ring.

[0007] When pile cutting is required, the distance between the upper and lower longitudinal adjusting assemblies is adjusted by rotating the knob at the top end of the screw, so as to control the contact between the grooves on the saw blade and the protrusions on the upper and lower extrusion rollers, ensuring that the saw blade will not disengage from the equipment during operation. Then, the motor is started to drive the driving gear to make the engaged saw blade rotate under the restriction of the extrusion rollers.

[0008] Preferably, the cutting component further includes a stabilizing component, and the stabilizing component includes a stabilizing arm, an auxiliary gear, and a stabilizing arm adjusting knob; one end of the stabilizing arm is connected to the longitudinal adjusting assembly through the stabilizing arm adjusting knob, and the stabilizing arm adjusting knob is threadedly connected to the longitudinal adjusting assembly on one side; an auxiliary gear is arranged at the end of the stabilizing arm away from the longitudinal adjusting assembly, and the auxiliary gear meshes with the tooth teeth on the outer side of the saw blade. Rollers that respectively contact the upper and lower surfaces of the saw blade are arranged on both the upper and lower end surfaces inside the stabilizing arm.

[0009] When it is necessary to further prevent the saw blade from separating, the saw blade is made to fall between the two stabilizing arms by screwing the stabilizing arm adjusting knob, and the saw blade is made to mesh with the auxiliary gear; during cutting, the saw blade is limited by the auxiliary gear, thereby further improving safety.

[0010] Preferably, the motor assembly further includes an auxiliary handle and a motor control handle; one end of the auxiliary handle is fixedly connected to the outer side of the motor housing, and the other end of the auxiliary handle is fixedly connected to the saw body housing. The motor control handle includes a motor handle and a control component. The motor handle of the motor control handle is fixedly connected to the motor housing, and the control component of the motor control handle is electrically connected to the motor.

[0011] When pile cutting is required, the motor is used to control the handle and the auxiliary handle to pull the device to move, thereby assisting in cutting.

[0012] Preferably, the auxiliary component includes a protective cover, a friction wheel, a transmission gear, a friction wheel adjusting screw, a guide rod, and an auxiliary plate; the fixing plate is fixedly connected to the upper end surface of the longitudinal adjusting component in the upper part, and a guide hole and a threaded hole are provided on the fixing plate; one end of the friction wheel adjusting screw is threadedly connected to the fixing plate through the threaded hole; one end of the guide rod is slidably connected to the fixing plate through the guide hole; the other ends of the friction wheel adjusting screw and the guide rod are fixedly arranged on the auxiliary plate, and a protective cover is fixedly connected to the lower end of the auxiliary plate; a rotating shaft is arranged on the lower end surface of the protective cover, and a transmission gear and a friction wheel are sequentially arranged on the rotating shaft from top to bottom.

[0013] The position of the auxiliary plate is adjusted through the friction wheel adjusting screw and the guide rod, so that the transmission gear meshes with the driving gear, the friction wheel is controlled to be arranged inside the traditional circular saw blade, cooperate with the traditional circular saw blade, and the stabilizing component is removed as required; at this time, the driving gear will drive the transmission gear to rotate the friction wheel, and the friction wheel drives the circular saw blade from the inside through friction, so that it rotates under the guiding action of the pressing roller.

[0014] Preferably, a pipe orifice for connecting a cooling water pipe is further arranged on the lower side of the saw body housing.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. When the device of the present invention cuts the pile, it starts cutting from the side far away from people, and personnel are safer in case the saw blade breaks; 2. The transmission mode is through tooth engagement transmission, which has higher transmission efficiency compared with the traditional circular saw that is driven by friction. It can cut things with higher strength. Compared with the traditional circular saw, the cutting depth of the circular saw cannot exceed the center. If a deeper cut is desired, a larger saw blade needs to be replaced. The cutting depth of the present invention can exceed the center; 3. The auxiliary component enables the device to be applicable to the saw blade of the ring saw, so that it can also be used when cutting an object that cannot be sleeved into the central object, providing multiple choices. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of a pile cutting device of the present invention;

[0018] Figure 2 is the overall structural schematic diagram of another angle of a pile cutting device of the present invention;

[0019] Figure 3 is the front view of a pile cutting device of the present invention;

[0020] Figure 4It is a top view of a pile cutting device of the present invention;

[0021] Figure 5 It is a schematic structural view of an "auxiliary component" of a pile cutting device of the present invention;

[0022] Figure 6 It is a schematic structural view of an "auxiliary component" of a pile cutting device of the present invention from another angle.

[0023] Among them, 10 - motor housing, 11 - auxiliary grip, 12 - motor control grip, 13 - stabilizing arm, 14 - auxiliary gear, 15 - saw blade, 16 - stabilizing arm adjustment knob, 18 - extrusion roller, 19 - adjustment ear, 20 - longitudinal adjustment assembly, 21 - fixing plate, 22 - screw, 23 - saw body housing, 24 - protective cover, 25 - friction wheel, 26 - drive gear, 27 - friction wheel adjustment screw, 28 - guide rod, 29 - auxiliary plate, 30 - pipe orifice. Specific embodiments

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific embodiments.

[0025] As Figure 1-6 shown, a pile cutting device includes a motor assembly, a driving gear, a saw body housing 23 and a cutting component. The motor assembly includes a motor housing 10 and a motor, and the motor is arranged inside the motor housing; the transmission shaft on the motor is connected to the driving gear, the driving gear is arranged inside the saw body housing 23, and the saw body housing 23 is fixedly connected to the motor housing 10; one end of the saw body housing 23 is provided with a cutting component, and teeth meshing with the driving gear are arranged outside the saw blade 15 of the cutting component; during operation, after the cutting component is sleeved outside the pile, the motor is started, and the saw blade 15 of the cutting component is driven to rotate by the driving gear for cutting.

[0026] In an embodiment, the pile cutting device further includes an auxiliary component, and the cutting component is compatible with a conventional circular saw blade through the provided auxiliary component.

[0027] The cutting component includes a saw blade 15, extrusion rollers 18, adjusting ears 19, a longitudinal adjustment assembly 20, and a screw 22; the longitudinal adjustment assembly 20 is slidably arranged on the side of the saw body housing 23 away from the motor, the longitudinal adjustment assembly 20 includes upper and lower symmetrically arranged parts, and adjusting ears 19 are fixedly arranged on the side edges at both ends of the longitudinal adjustment assembly 20; the adjusting ears 19 of the upper and lower symmetrically arranged parts of the longitudinal adjustment assembly 20 are threadedly connected to the same screw 22, and the threads of the screw 22 corresponding to the adjusting ears 19 of the upper and lower parts of the longitudinal adjustment assembly 20 are in reverse directions. The upper end of the screw 22 passes through the corresponding through hole provided on the saw body housing 23 and is rotatably connected thereto, and a knob is fixedly arranged at the top end of the screw 22; extrusion rollers 18 are respectively rotatably arranged at both ends of the inner side wall of the longitudinal adjustment assembly 20 through rotating shafts, a saw blade 15 is arranged between the two extrusion rollers 18 symmetrically arranged in the upper and lower parts of the longitudinal adjustment assembly 20, grooves are arranged on both the upper and lower sides of the saw blade 15, and the grooves cooperate with the protrusions arranged on the extrusion rollers 18. Tooth edges are arranged on the outer ring of the saw blade 15, and a tooth blade is arranged on the inner ring. When pile cutting is required, the distance between the upper and lower longitudinal adjustment assemblies 20 is adjusted by rotating the knob at the top end of the screw 22, so as to control the contact between the grooves on the saw blade 15 and the protrusions on the upper and lower extrusion rollers 18, ensuring that the saw blade 15 will not separate from the equipment during operation. Then, the motor is started to drive the driving gear to make the engaged saw blade 15 rotate under the restriction of the extrusion rollers 18.

[0028] In an embodiment, the cutting component further includes a stabilizing component, and the stabilizing component includes a stabilizing arm 13, an auxiliary gear 14, and a stabilizing arm adjustment knob 16; one end of the stabilizing arm 13 is connected to the longitudinal adjustment assembly 20 through the stabilizing arm adjustment knob 16, and the stabilizing arm adjustment knob 16 is threadedly connected to the longitudinal adjustment assembly 20 on one side; an auxiliary gear 14 is arranged at the end of the stabilizing arm 13 away from the longitudinal adjustment assembly 20, and the auxiliary gear 14 meshes with the outer tooth edges of the saw blade 15. Rollers respectively contacting the upper and lower surfaces of the saw blade 15 are arranged on both the upper and lower end surfaces inside the stabilizing arm 13. When further preventing the separation of the saw blade 15 is required, the saw blade 15 is dropped between the two stabilizing arms 13 by screwing the stabilizing arm adjustment knob 16, and the saw blade 15 is meshed with the auxiliary gear 14; during cutting, the saw blade 15 is limited by the auxiliary gear 14, thereby further improving safety.

[0029] The motor assembly further includes an auxiliary handle 11 and a motor control handle 12; one end of the auxiliary handle 11 is fixedly connected to the outside of the motor housing 10, and the other end of the auxiliary handle 11 is fixedly connected to the saw body housing 23. The motor control handle 12 includes a motor handle and a control component. The motor handle of the motor control handle 12 is fixedly connected to the motor housing 10, and the control component of the motor control handle 12 is electrically connected to the motor. When pile cutting is required, the equipment is pulled by the motor control handle 12 and the auxiliary handle 11 to assist in cutting.

[0030] In one embodiment, the auxiliary component includes a protective cover 24, a friction wheel 25, a transmission gear 26, a friction wheel adjusting screw 27, a guide rod 28, and an auxiliary plate 29; the fixed plate 21 is fixedly connected to the upper end surface of the longitudinal adjusting component 20 in the upper part, and a guide hole and a threaded hole are provided on the fixed plate 21; one end of the friction wheel adjusting screw 27 is threadedly connected to the fixed plate 21 through the threaded hole; one end of the guide rod 28 is slidably connected to the fixed plate 21 through the guide hole; the other ends of the friction wheel adjusting screw 27 and the guide rod 28 are fixedly arranged on the auxiliary plate 29, and the lower end of the auxiliary plate 29 is fixedly connected with the protective cover 24; a rotating shaft is arranged on the lower end surface of the protective cover 24, and a transmission gear 26 and a friction wheel 25 are sequentially arranged on the rotating shaft from top to bottom. The position of the auxiliary plate 29 is adjusted by the friction wheel adjusting screw 27 and the guide rod 28, so that the transmission gear 26 meshes with the driving gear, and the friction wheel 25 is controlled to be arranged inside the traditional circular saw blade, cooperate with the traditional circular saw blade, and the stabilizing component is removed as required; at this time, the driving gear will drive the transmission gear 26 to rotate the friction wheel 25, and the friction wheel 25 drives the circular saw blade from the inside through friction, so that it rotates under the guiding action of the pressing roller 18.

[0031] In one embodiment, a pipe orifice 30 for connecting a cooling water pipe is further arranged on the lower side of the saw body housing 23.

[0032] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solution of the present invention should fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. A pile cutting device, characterized in that: The invention comprises a motor assembly, a driving gear, a saw body housing (23) and a cutting component, wherein the motor assembly comprises a motor housing (10) and a motor, wherein the motor is arranged inside the motor housing; a transmission shaft on the motor is connected to the driving gear, which is arranged inside the saw body housing (23); the saw body housing (23) is fixedly connected to the motor housing (10); a cutting component is arranged at one end of the saw body housing (23), and teeth meshing with the driving gear are arranged on the outside of the saw blade (15) of the cutting component.

2. A pile cutting device according to claim 1, characterized in that: The pile cutting device further comprises an auxiliary component, and the cutting component is compatible with a conventional annular saw blade through the auxiliary component.

3. A pile cutting device according to claim 1, characterized in that: The cutting component comprises a saw blade (15), an extrusion roller (18), an adjustment ear (19), a longitudinal adjustment component (20) and a screw rod (22); the longitudinal adjustment component (20) is slidably arranged on a side of the saw body shell (23) away from the motor, the longitudinal adjustment component (20) comprises two symmetrically arranged upper and lower parts, and the adjustment ears (19) are fixedly arranged on the sides of both ends of the longitudinal adjustment component (20); the adjustment ears (19) symmetrically arranged on the upper and lower parts of the longitudinal adjustment component (20) are threadedly connected to the same screw rod (22), and the adjustment ears (19) of the upper and lower parts of the longitudinal adjustment component (20) corresponding to the screw rod (22) 2) The threads are reversed, the upper end of the screw rod (22) passes through the corresponding through hole provided on the saw body shell (23) and is rotatably connected thereto, and a knob is fixedly provided on the top of the screw rod (22); the two ends of the inner side wall of the longitudinal adjustment component (20) are respectively provided with extrusion rollers (18) rotatably provided through a rotating shaft, and a saw blade (15) is provided between the two extrusion rollers (18) symmetrically provided in the upper and lower parts of the longitudinal adjustment component (20), and the saw blade (15) is provided with grooves on the upper and lower sides, and the grooves are matched with the protrusions provided on the extrusion rollers (18), and the saw blade (15) is provided with teeth on the outer side of the ring and a tooth edge on the inner side of the ring.

4. A pile cutting device according to claim 3, characterized in that: When it is necessary to cut piles, the distance between the upper and lower longitudinal adjustment components (20) is adjusted by turning the knob at the top of the screw rod (22), thereby controlling the groove on the saw blade (15) to contact the protrusions on the upper and lower squeezing rollers (18), ensuring that the saw blade (15) will not separate from the device during operation, and then starting the motor to drive the driving gear to make the saw blade (15) meshed with it rotate under the restriction of the squeezing roller (18).

5. A pile cutting device according to claim 4, characterized in that: The cutting component also includes a stabilizing component, which includes a stabilizing arm (13), an auxiliary gear (14) and a stabilizing arm adjusting knob (16); one end of the stabilizing arm (13) is connected to the longitudinal adjusting component (20) through the stabilizing arm adjusting knob (16), and the stabilizing arm adjusting knob (16) is threadedly connected to the longitudinal adjusting component (20) on one side; an auxiliary gear (14) is provided at one end of the stabilizing arm (13) away from the longitudinal adjusting component (20), and the auxiliary gear (14) is meshed with the outer teeth of the saw blade (15); and rollers are provided on the upper and lower end surfaces inside the stabilizing arm (13) and are in contact with the upper and lower surfaces of the saw blade (15) respectively.

6. A pile cutting device according to claim 5, characterized in that: When it is necessary to further prevent the saw blade (15) from separating, the saw blade (15) is caused to fall between the two stabilizing arms (13) by twisting the stabilizing arm adjustment knob (16), and the saw blade (15) is meshed with the auxiliary gear (14); during cutting, the saw blade (15) is limited by the auxiliary gear (14).

7. A pile cutting device according to claim 1, characterized in that: The motor assembly further comprises an auxiliary handle (11) and a motor control handle (12); one end of the auxiliary handle (11) is fixedly connected to the outside of the motor housing (10), and the other end of the auxiliary handle (11) is fixedly connected to the saw body housing (23); the motor control handle (12) comprises a motor handle and a control assembly; the motor handle of the motor control handle (12) is fixedly connected to the motor housing (10), and the control assembly of the motor control handle (12) is electrically connected to the motor.

8. A pile cutting device according to claim 2, characterized in that: The auxiliary components include a protective cover (24), a friction wheel (25), a transmission gear (26), a friction wheel adjusting screw (27), a guide rod (28) and an auxiliary plate (29); the fixed plate (21) is fixedly connected to the upper end surface of the longitudinal adjustment component (20) at the upper side portion, and a guide hole and a threaded hole are arranged on the fixed plate (21); one end of the friction wheel adjusting screw (27) is threadedly connected to the fixed plate (21) through the threaded hole; one end of the guide rod (28) is slidably connected to the fixed plate (21) through the guide hole; the other ends of the friction wheel adjusting screw (27) and the guide rod (28) are fixedly arranged on the auxiliary plate (29), and the lower end of the auxiliary plate (29) is fixedly connected to the protective cover (24); a rotating shaft is arranged on the lower end surface of the protective cover (24), and a transmission gear (26) and a friction wheel (25) are arranged on the rotating shaft in sequence from top to bottom.

9. A pile cutting device according to claim 8, characterized in that: The position of the auxiliary plate (29) is adjusted by the friction wheel adjusting screw rod (27) and the guide rod (28) so that the transmission gear (26) is meshed with the driving gear, and the friction wheel (25) is controlled to be arranged inside the conventional annular saw blade to cooperate with the conventional annular saw blade, and the stabilizing component is removed as required; at this time, the driving gear drives the transmission gear (26) to rotate the friction wheel (25), and the friction wheel (25) drives the annular saw blade from the inside through friction force, so that it rotates under the guidance of the extrusion roller (18).

10. A pile cutting device according to any one of claims 1 to 9, characterized in that: The lower side of the saw body shell (23) is also provided with a pipe opening (30) for connecting a cooling water pipe.

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