CN216758373U

CN216758373U - Power head device of pipe cutting machine

Info

Publication number: CN216758373U
Application number: CN202220490288.5U
Authority: CN
Inventors: 席建伟; 吴晓兵; 黄俊文
Original assignee: Wenzhou Youchuang Machinery Co ltd
Current assignee: Wenzhou Youchuang Machinery Co ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-06-17
Anticipated expiration: 2032-03-08

Abstract

The utility model discloses a power head device of a pipe cutting machine, when a cutting blade is installed, a pull rod is ejected out of a rotating shaft through the action of an output end of an air cylinder, an elastic piece is compressed, a through groove of a pressing block is aligned with a bulge of a pressing head, the pressing block is installed on the pull rod, an installation cavity of the pressing block is matched with a first shaft neck, then the pressing block is rotated, a sinking groove on the pressing block is matched with the bulge to relatively fix the pressing block and the front end of the pull rod, then the air cylinder returns, the pull rod retracts backwards under the action of the elastic piece to drive the pressing block to be pressed backwards on the cutting blade so as to press the cutting blade on a cutter sleeve, and the reverse operation is carried out when the cutting blade is disassembled. The structure is simple, and the disassembly is convenient.

Description

Power head device of pipe cutting machine

Technical Field

The utility model relates to the technical field of pipe cutting devices, in particular to a power head device of a pipe cutting machine.

Background

The pipe cutter can cut the pipe into proper lengths as required, and can be used for cutting steel, plastic, copper, cast iron, stainless steel and multilayer pipes. The power device of the pipe cutting machine drives the rotating shaft to rotate through driving so as to drive the cutting blade at the front end of the rotating shaft to rotate so as to realize the cutting operation on the pipe, the cutting blade of the existing pipe cutting machine is pressed on the rotating shaft through a nut, the assembly and disassembly of the fixing mode are all troublesome, and especially when the nut is not tightly assembled, the cutting blade is easily thrown away in the rotating process of the rotating shaft, so that great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a power head device of a pipe cutting machine, which solves the problems that in the prior art, a cutting blade is tightly pressed on a rotating shaft through a nut, the assembly and disassembly of the fixing mode are troublesome, and particularly, when the nut is not tightly assembled, the cutting blade is easy to fly and throw away in the rotating process of the rotating shaft, and great potential safety hazards exist.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a pipe cutting machine unit head device which characterized in that: the electric tool comprises a motor, a hollow rotating shaft, an air cylinder, a pull rod, an elastic piece, a cutter sleeve and a pressing block, wherein the motor is connected with the rotating shaft through a transmission mechanism and used for driving the rotating shaft to rotate;

the knife pouch cover is located the front end of pivot, the front end of knife pouch is equipped with the first axle journal that is used for installing cutting blade, be equipped with in the briquetting and supply protruding logical groove of passing, one side of briquetting be equipped with first axle journal complex installation cavity, the opposite side of briquetting be equipped with can with protruding heavy groove of cooperation location.

Further, the arch is that the interval sets up a plurality of beads on the pressure head periphery wall, on the briquetting lead to the groove with heavy groove all with the quantity phase-match of bead, just lead to the groove with heavy groove interval arrangement, it is adjacent lead to the groove with the circumferential angle between the heavy groove is the same.

Furthermore, a second shaft neck is arranged at the front end of the rotating shaft, and the cutter sleeve is arranged on the second shaft neck.

Furthermore, a first bearing is arranged between the rotating shaft and the pull rod.

Furthermore, the device also comprises a base, the rotating shaft and the pull rod are partially wrapped in the base, and the air cylinder is connected with the base through a connecting plate.

Furthermore, the rotating shaft is connected with the inner wall of the machine base through a second bearing.

Furthermore, the locating piece includes set nut and lock nut, the elastic component butt is in the set nut side, lock nut is used for with set nut locks on the pull rod.

Further, drive mechanism includes action wheel, follower and drive belt, the action wheel connect in the output of motor, the follower cover is located in the pivot, the drive belt transmission is around establishing the action wheel with between the follower.

The utility model provides a power head device of a pipe cutting machine, wherein a motor drives a rotating shaft to rotate through a transmission mechanism so as to drive a cutting blade at the front end of the rotating shaft to rotate so as to cut a pipe, when the cutting blade is installed, firstly, a pull rod is ejected out of the rotating shaft through the action of the output end of a cylinder, an elastic element is compressed at the moment, then, the cutting blade is installed on a first shaft neck of a cutter sleeve, a through groove of a pressing block is aligned with a bulge of a pressing head, the pressing block is installed on the pull rod, so that an installation cavity of the pressing block is matched with the first shaft neck, then, the pressing block is fixed relative to the front end of the pull rod through the matching of a sinking groove on the pressing block and the bulge, then, the cylinder returns, the pull rod retracts backwards under the action of the elastic element to drive the pressing block to press backwards on the cutting blade, so that the cutting blade is pressed on the cutter sleeve; when the cutting blade is disassembled, the cylinder ejects the pull rod, then the pressing block is rotated to enable the through groove to be aligned with the protrusion so as to detach the pressing block from the pull rod, and then the cutting blade is detached.

Drawings

FIG. 1 is a schematic diagram of a powerhead apparatus of a pipe cutter in an embodiment of the present invention.

Figure 2 is a schematic longitudinal cross-sectional view of a powerhead apparatus of a pipe cutter in an embodiment of the present invention.

FIG. 3 is a schematic structural view of a briquette in an embodiment of the present invention.

FIG. 4 is a schematic structural diagram of another view angle of the pressing block in the embodiment of the present invention.

Fig. 5 is a schematic view of the structure of the indenter in an embodiment of the present invention.

Fig. 6 is a partially enlarged view of a portion a in fig. 2.

In the figure: 1. a motor; 2. a rotating shaft; 3. a cylinder; 4. a pull rod; 5. an elastic member; 6. a knife sheath; 7. briquetting; 8. a driving wheel; 9. a driven wheel; 10. a transmission belt; 11. a machine base; 12. a connecting plate; 13. a first bearing; 14. a second bearing; 15. a cutting blade; 201. a second journal; 401. a pressure head; 402. a protrusion; 403. a positioning member; 601. a first journal; 701. a through groove; 702. a mounting cavity; 703. and (5) sinking the tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, an embodiment of the present invention provides a power head device for a pipe cutting machine, including a motor 1, a hollow rotating shaft 2, a cylinder 3, a pull rod 4, an elastic member 5, a knife pouch 6, and a pressing block 7, where the motor 1 is connected to the rotating shaft 2 through a transmission mechanism and used to drive the rotating shaft 2 to rotate, the pull rod 4 is disposed through the rotating shaft 2, a first end of the pull rod 4 is provided with a pressing head 401, an outer peripheral wall of the pressing head 401 is provided with a protrusion 402, a second end of the pull rod 4 is provided with a positioning member 403, the elastic member 5 is sleeved at the second end of the pull rod 4, two ends of the elastic member 5 are respectively abutted against a rear end surface of the rotating shaft 2 and the positioning member 403, and an output end of the cylinder 3 is disposed near the second end of the pull rod 4 and coaxial with the pull rod 4; the front end of the rotating shaft 2 is sleeved with the cutter sleeve 6, the first journal 601 for mounting the cutting blade 15 is arranged at the front end of the cutter sleeve 6, the through groove 701 through which the protrusion 402 can pass is arranged in the pressing block 7, the mounting cavity 702 matched with the first journal 601 is arranged on one side of the pressing block 7, the sinking groove 703 matched with the protrusion 402 for positioning is arranged on the other side of the pressing block 7, and the elastic element 5 in the embodiment is preferably a spring.

Specifically, the motor 1 drives the rotating shaft to rotate through the transmission mechanism so as to drive the cutting blade 15 at the front end of the rotating shaft 2 to rotate to cut the pipe, when the cutting blade 15 is installed, firstly, the pull rod 4 is ejected out of the rotating shaft 2 by the action of the output end of the air cylinder 3, at the moment, the elastic element 5 is compressed, then, the cutting blade 15 is installed on the first shaft neck 601 of the cutter sleeve 6, the through groove 701 of the pressing block 7 is aligned with the protrusion 402 of the pressing head 401, the pressing block 7 is installed on the pull rod 4, so that the installation cavity 702 of the pressing block 7 is matched with the first shaft neck 601, then, the pressing block 7 is rotated, so that the sunken groove 703 on the pressing block 7 is matched with the protrusion 402 to relatively fix the pressing block 7 and the front end of the pull rod 4, then, the air cylinder 3 returns, the pull rod 4 retracts backwards under the action of the elastic element 5 to drive the pressing block 7 to press backwards on the cutting blade 15, so as to press the cutting blade 15 on the cutter sleeve 6, when the cutting blade 15 is disassembled, the cylinder 3 ejects the pull rod 4, then the pressing block 7 is rotated to enable the through groove 701 to be aligned with the protrusion 402 so as to detach the pressing block 7 from the pull rod 4, and then the cutting blade 15 is detached.

Further, the protrusions 402 are a plurality of convex ribs arranged on the outer circumferential wall of the pressing head 401 at intervals, the through grooves 701 and the sunken grooves 703 on the pressing block 7 are both matched with the number of the convex ribs, the through grooves 701 and the sunken grooves 703 are arranged at intervals, and the circumferential angles between the adjacent through grooves 701 and the sunken grooves 703 are the same, that is, when the pressing block 7 needs to be disassembled to take out the cutting blade 15, the pull rod 4 is firstly ejected out through the air cylinder 3, so that the sunken grooves 703 on the pressing head 401 of the pull rod 4 are separated from the convex ribs, then the pressing block 7 is rotated for an angle, so that the through grooves 701 on the pressing block 7 are matched with the convex ribs to take out the pressing block 7 from the pull rod 4, during installation, the pressing block 7 is installed on the pull rod 4 by aligning the through grooves 701 and the convex ribs of the pressing block 7, then the pressing block 7 is rotated to align the sunken grooves 703 with the convex ribs, the air cylinder 3 is controlled to reset, the pull rod 4 retracts backwards under the elastic force of the elastic piece 5 to drive the rear end of the pressing block 7 to be locked on the cutting blade 15, simultaneously, the front end heavy groove 703 of briquetting 7 and bead cooperation locking, so, under the spring action of elastic component 5, cutting blade 15 can be tightly locked on knife pouch 6 by briquetting 7, avoid pivot 2 to rotate the in-process and fly away because of cutting blade 15 is not hard up, reduce the potential safety hazard in the production process, generally, the bead sets up to four, be 90 contained angles between two adjacent beads, therefore, the contained angle that leads to between groove 701 and the heavy groove 703 is 45, so, can change the cooperation position of bead and briquetting 7 with briquetting 7 rotatory 45, and then install and dismantle. The fins in this embodiment are preferably rounded to facilitate assembly.

The front end of pivot 2 is equipped with second journal 201 in this embodiment, and the broach shell 6 is installed on second journal 201, through second journal 201 with broach shell 6 fixed mounting on pivot 2 to guarantee that cutting blade 15 can follow pivot 2 synchronous rotation.

Referring to fig. 1, the power head device of the pipe cutting machine in the embodiment further includes a base 11, the rotating shaft 2 and the pull rod 4 are partially wrapped in the base 11, the base 11 mainly plays a role in protecting and supporting various internal components, and the air cylinder 3 is connected with the base 11 through a connecting plate 12 so as to enhance the integrity and stability of the whole device.

Preferably, in order to ensure the rotation of the rotating shaft 2 and reduce the friction coefficient during the movement of the rotating shaft, a first bearing 13 is arranged between the rotating shaft 2 and the pull rod 4, and similarly, the rotating shaft 2 is connected with the inner wall of the base 11 through a second bearing 14.

The locating piece 403 in this embodiment includes a locating nut and a lock nut, the elastic piece 5 abuts against the side of the locating nut, the lock nut is used for locking the locating nut on the pull rod 4, the locating piece 403 is formed by two nuts, the structure is simple, the locating piece 403 can be conveniently detached, and the pull rod 4 can be conveniently assembled and disassembled from the rotating shaft 2.

Drive mechanism in this embodiment includes action wheel 8, follower 9 and drive belt 10, action wheel 8 is connected in motor 1's output, pivot 2 is located to follower 9 cover, drive belt 10 transmission is around establishing between action wheel 8 and follower 9, motor 1 drives the action that action wheel 8 is rotatory to pass through drive belt 10 and drives follower 9 and rotate and then drive pivot 2 and rotate, pivot 2 rotates and then drives cutting blade 15 on it and rotate and cut the operation with carrying out the tubular product, adopt drive belt 10 transmission in this embodiment, it has that the transmission process is steady, the buffering is inhaled the shake, moreover, the steam generator is simple in structure, low cost, use and maintain convenient and have advantages such as good flexibility and elasticity.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pipe cutting machine unit head device which characterized in that: the electric tool comprises a motor, a hollow rotating shaft, an air cylinder, a pull rod, an elastic piece, a cutter sleeve and a pressing block, wherein the motor is connected with the rotating shaft through a transmission mechanism and used for driving the rotating shaft to rotate;

2. The pipelayer power head apparatus of claim 1, wherein: the arch is set up for the interval a plurality of beads on the pressure head periphery wall, on the briquetting lead to the groove with heavy groove all with the quantity phase-match of bead, just lead to the groove with heavy groove interval arrangement, it is adjacent lead to the groove with circumferential angle between the heavy groove is the same.

3. The pipelayer power head apparatus of claim 2, wherein: the front end of the rotating shaft is provided with a second journal, and the knife sleeve is arranged on the second journal.

4. The pipelayer power head apparatus of claim 3, wherein: a first bearing is arranged between the rotating shaft and the pull rod.

5. The pipelayer power head apparatus of claim 4, wherein: the rotary shaft and the pull rod are wrapped in the base, and the cylinder is connected with the base through a connecting plate.

6. The tube-cutting machine power head apparatus of claim 5, wherein: the rotating shaft is connected with the inner wall of the machine base through a second bearing.

7. The pipelayer power head apparatus of claim 6, wherein: the locating piece comprises a positioning nut and a locking nut, the elastic piece abuts against the side of the positioning nut, and the locking nut is used for locking the positioning nut on the pull rod.

8. The pipelayer power head apparatus of claim 7, wherein: the transmission mechanism comprises a driving wheel, a driven wheel and a transmission belt, the driving wheel is connected with the output end of the motor, the driven wheel is sleeved on the rotating shaft, and the transmission belt is wound on the driving wheel and the driven wheel.