CN217826048U

CN217826048U - Safe type automatically controlled cutting equipment

Info

Publication number: CN217826048U
Application number: CN202220879416.5U
Authority: CN
Inventors: 马先鹏
Original assignee: Dongguan Jiahang Industry Co ltd
Current assignee: Dongguan Jiahang Industry Co ltd
Priority date: 2022-04-16
Filing date: 2022-04-16
Publication date: 2022-11-18
Anticipated expiration: 2032-04-16

Abstract

The utility model discloses an automatically controlled cutting equipment of safe type, relate to automatically controlled cutting equipment technical field, which comprises a housing, rotating assembly, a controller, the brake pull rod, trigger and inductor, rotating assembly includes rotary driving piece and the rotatory output shaft that is used for driving cutting tool, the brake pull rod can stimulate the setting on the casing, the trigger is installed on the brake pull rod or movable mounting is on the casing, the trigger produces the displacement along with moving when the pulling brake pull rod, the inductor is used for sensing trigger and producing signal, the inductor has stall control response area, when trigger displacement to stall control response area, the inductor response produces stall control signal, when emergence emergency needs control rotary driving piece stall to appear in the plant repair process, user's accessible stimulates the brake pull rod so that the trigger moves fast to the stall control response area of inductor, thereby make the controller can the stall of fast control rotary driving piece, it is safer to use.

Description

Safe type automatically controlled cutting equipment

Technical Field

The utility model relates to an automatically controlled cutting equipment technical field specifically is automatically controlled cutting equipment of safe type.

Background

The electric control cutting equipment, especially the repair equipment that drives the saw chain by engine or motor and carry out the rotation cutting, it can appear emergency need promptly stop the cutting when carrying out the cutting of object, if saw into wood suddenly need look over current sawing position or need examine the saw chain when, need control engine or motor fast and carry out the stall to emergency brake. Therefore, it is important to provide an emergency brake device in an electrically controlled cutting apparatus, particularly a chain saw.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

In order to achieve the above object, the utility model provides a following technical scheme: the safe electric control cutting equipment comprises a shell, a rotating assembly, a controller and a brake device; the rotating assembly is arranged on the machine shell and comprises a rotating driving piece and a rotating output shaft for driving the cutting tool, and the rotating output shaft is in power connection with a rotating shaft of the rotating driving piece; the control end of the controller is electrically connected with the rotary driving piece and is used for controlling the rotating speed of the rotary driving piece; the brake apparatus is used for providing stall control signal to the controller, so that the controller controls the rotary driving piece to stall, and the brake apparatus includes: the brake pull rod can be arranged on the shell in a pulling mode; the trigger is arranged on the brake pull rod or movably arranged on the shell, and the trigger generates displacement along with the brake pull rod when the brake pull rod is pulled; the sensor is used for sensing the trigger, a signal generating end of the sensor is connected with a signal receiving end of the controller, the sensor is provided with a stalling control sensing area, and when the trigger moves to the stalling control sensing area, the sensor correspondingly provides stalling control signals for the controller.

As a further aspect of the present invention: the trigger adopts a magnet, and the inductor adopts a Hall sensor.

As a further aspect of the present invention: the cutting tool adopts a saw chain, and a saw chain guide plate is correspondingly arranged on the machine shell.

As a further aspect of the present invention: the brake pull rod comprises a rotating seat which is rotatably connected on the machine shell and a handle part which is connected on the rotating seat.

As a further aspect of the utility model: the handle part is positioned outside the machine shell and is expanded to form a chip blocking plate.

As a further aspect of the utility model: the trigger is fixed on the rotating seat.

As a further aspect of the utility model: the shell is provided with a reset assembly, and the reset assembly is used for driving the brake pull rod to reset when the brake pull rod is loosened so that the trigger moves away from the stalling control induction area along with the displacement; the mobile reset end of the reset component is connected or abutted with the brake pull rod.

As a further aspect of the present invention: the reset assembly comprises a reset spring, one end of the reset spring is connected with the shell in an abutting mode, and the other end of the reset spring is connected with the brake pull rod in an abutting mode.

As a further aspect of the utility model: a brake disc is sleeved on the rotary output shaft, and a brake piece is arranged on the brake pull rod or movably arranged on the shell; when the brake pull rod is pulled, the brake piece follows up to be tightly attached to the brake disc, and the brake piece is used for increasing the rotation resistance of the brake disc.

As a further aspect of the utility model: the brake piece adopts a brake band, one end of the brake piece is fixed on the shell, and the other end of the brake piece is connected on the brake pull rod along the outer surface of the brake disc.

Compared with the prior art, the beneficial effects of the utility model are as follows: when emergency appears in the plant repair process and the rotary driving piece needs to be controlled to stop, a user can pull the brake pull rod to enable the trigger to rapidly move to a stop control induction area of the inductor, so that the controller can rapidly control the rotary driving piece to stop, and the use is safer.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion of the structure at A in FIG. 1;

the reference numerals and names in the figures are as follows:

the device comprises a machine shell-1, a rotary output shaft-2, a brake pull rod-3, a trigger-4, a sensor-5, a saw chain guide-6, a rotary seat-31, a handle part-32, a return spring-7, a brake disc-8, a brake piece-9, a cutting tool-10, a scrap baffle-11, a rotary shaft-12, a chain wheel-13, a handle-14, a second clamping groove-15, a first connecting rod-16, a second connecting rod-17, a sliding rod-18, a guide sliding groove-19, a draw hook-20, a first push block-21 and a second push block-22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-2, the safety electric control cutting device includes a housing 1, a rotating component, a controller and a braking device. The rotating assembly is mounted on the housing 1, the rotating assembly includes a rotating driving member and a rotating output shaft 2 for driving the cutting tool 10, and the rotating output shaft 2 is in power connection with a rotating shaft of the rotating driving member, that is, the rotating shaft of the rotating driving member drives the rotating output shaft 2 to rotate. The control end of the controller is electrically connected with the rotary driving piece and used for controlling the rotating speed of the rotary driving piece, correspondingly, a control program module is burnt on a control chip of the controller, and the controller realizes the rotating speed control of the rotary driving piece through the control program module. The braking device is used for providing a stalling control signal to the controller so that the controller controls the rotary driving piece to stall.

The brake device comprises a brake pull rod 3, a trigger 4 and a sensor 5. The brake pull rod 3 can be arranged on the machine shell 1 in a pulling way; the trigger 4 is arranged on the brake pull rod 3 or movably arranged on the machine shell 1, and the trigger 4 generates displacement along with the brake pull rod 3 when being pulled; the inductor 5 is used for inducing the trigger 4, a signal generating end of the inductor 5 is connected with a signal receiving end of the controller, the inductor 5 is provided with a stalling control induction area, and when the trigger 4 moves to the stalling control induction area, the inductor 5 correspondingly provides stalling control signals for the controller.

When emergency appears in the plant repairing process and the rotary driving piece needs to be controlled to stop rotating, a user can pull the brake pull rod 3 to enable the trigger 4 to rapidly move to the stop rotating control sensing area of the sensor 5, so that the controller can rapidly control the rotary driving piece to stop rotating, and the use is safer.

Preferably, the brake lever 3 includes a rotary base 31 rotatably connected to the housing 1, and a handle portion 32 connected to the rotary base 31, and is controlled by rotation, so that the operation is more convenient. The handle part 32 is located outside the machine shell 1 and is expanded to form a scrap blocking plate for reducing the damage of flying scraps generated during plant repairing to users, and the scrap blocking plate can also block branches to a certain degree. The trigger 4 is fixed on the rotary seat 31, the follow-up structure of the trigger 4 is simplified, on one hand, the cost is reduced, on the other hand, the displacement of the trigger 4 is carried out simultaneously along with the rotation of the rotary seat 31, and the control is more sensitive.

Further, be provided with reset assembly on casing 1, reset assembly is used for driving brake pull rod 3 when unclamping brake pull rod 3 and resets to make 4 follow-up displacements of trigger leave stall control induction area, reset assembly's removal reset end is connected or the butt with brake pull rod 3. Through the design of the reset component, after a user releases the brake pull rod 3, the brake pull rod 3 can return to the initial position, and the operation is more convenient. Preferably, the reset assembly comprises a reset spring 7, one end of the reset spring 7 is abutted or connected with the casing 1, and the other end of the reset spring 7 (i.e. the movable reset end of the reset assembly) is abutted or connected with the brake pull rod 3.

Furthermore, a brake disc 8 is sleeved on the rotary output shaft 2, a brake piece 9 is installed on the brake pull rod 3 or the brake piece 9 is movably installed on the casing 1, and the brake piece 9 follows up to be tightly attached to the brake disc 8 when the brake pull rod 3 is pulled so as to increase the rotation resistance of the brake disc 8. The design of the brake member 9 and the brake disc 8 is such that the rotary output shaft 2 for driving the cutting tool 10 stops freewheeling relatively quickly after the rotary drive member has stalled. Preferably, the braking member 9 is a braking band, one end of the braking member 9 is fixed on the casing 1, the other end of the braking member 9 is connected to the braking pull rod 3 along the outer surface of the brake disc 8, and the braking band has good flexibility and is convenient to wind. Preferably, the braking member 9 is wound at least one turn around the brake disc 8, so that when the brake pull rod 3 is pulled to cause the braking member 9 to brake the brake disc 8, the brake disc 8 is uniformly stressed, and the contact area between the braking member 9 and the brake disc 8 is larger, thereby enabling the cutting tool 10 of the electrically controlled cutting device to rotate to stop rotating from a high-speed running state after being decelerated after the controller controls the rotary driving member to stop rotating.

The embodiment of the utility model provides an in, rotary driving piece adopts the motor, and rotary driving piece's rotation axis carries out the hub connection with rotatory output shaft 2 through a gear speed change subassembly to realize that rotary driving piece's rotation axis is connected with rotatory output shaft 2's power, more steady when making rotatory output shaft 2 rotate, casing 1 can correspond be provided with rotatory output shaft 2 complex bearing.

The brake pull rod 3 comprises a rotary seat 31 and a handle part 32, wherein the casing 1 is correspondingly fixed with a rotary shaft 12, the rotary seat 31 is provided with a rotary shaft hole, and the rotary seat 31 is rotatably sleeved on the rotary shaft 12 through the rotary shaft hole.

The trigger 4 adopts a magnet, the inductor 5 adopts a Hall sensor, and the intensity of an electric signal generated by the Hall sensor can be continuously enhanced along with the continuous approaching of the magnet. The trigger 4 is fixed on the rotary seat 31 and close to the outer side surface of the rotary seat 31, the sensor 5 is fixed on the casing 1 at a position close to the rotary seat 31, and when a user pulls the brake pull rod 3, the trigger 4 has at least a motion state close to the sensor 5, and the motion state ensures that the trigger 4 can enter a stall control sensing area of the sensor 5: when the strength value of an electric signal generated when the sensor 5 is set to sense the trigger 4 is not less than N, the controller correspondingly controls the rotary driving piece to stop rotating; when the brake pull rod 3 is pulled, the displacement of the trigger 4 meets the requirement that the intensity value of an electric signal generated when the sensor 5 senses the trigger 4 is larger than or equal to N and is close to the sensor 5.

The cutting tool 10 adopts a saw chain, a saw chain guide plate 6 is correspondingly arranged on the machine shell 1, one end of the saw chain guide plate 6 is fixed on the machine shell 1, and the other end of the saw chain guide plate 6 extends out towards the front of the machine shell 1. The rotating output shaft 2 is fixed with a chain wheel 13 corresponding to the cutting tool, one part of the cutting tool 10 is wound on the teeth of the chain wheel 13, the rotating output shaft 2 drives the cutting tool 10 better through the chain wheel 13, and the other part of the cutting tool 10 is wound on the chain saw guide plate 6 and guided by the chain saw guide plate 6, so that the plant can be repaired better.

The handle 14 for carrying the electric control cutting device is positioned at the rear side of the machine shell 1, the handle part 32 is positioned outside the machine shell 1 and expands to form the chip blocking plate 11, and the chip blocking plate 11 is positioned at the middle part of the machine shell 1, preferably, a user carries the electric control cutting device through the handle 14, the chip blocking plate 11 is arranged between the upper half of the user and the cutting tool 10, on one hand, the user can pull the handle part 32 through the hand, on the other hand, the fragile part of the human body is concentrated on the upper half, and the chip blocking plate 11 can better protect the user in the plant repairing process.

The reset assembly comprises a reset spring 7, a first clamping groove is formed in the machine shell 1, a second clamping groove 15 is formed in the rotating seat 31, one end of the reset spring 7 is arranged in the first clamping groove and abuts against the inner wall of the first clamping groove, and the other end of the reset spring 7 is arranged in the second clamping groove 15 and abuts against the inner wall of the second clamping groove 15. When the handle portion 32 is pulled (the rotary seat 32 is rotated counterclockwise in the figure), the return spring 7 is pressed and compressed by the inner wall of the first engaging groove and the inner wall of the second engaging groove 15, and after the handle portion 32 is released, the return spring 7 can return the handle portion 32 by the deformation recovery (the rotary seat 31 is rotated clockwise).

The brake piece 9 adopts a brake band, wherein one end (fixed end) of the brake piece 9 is clamped on the machine shell 1 in a clamping way of a clamping groove and a clamping block, correspondingly, the clamping block is fixed at one end of the brake band 9, and the machine shell 1 is provided with the clamping groove; the other end (movable end) of the brake element 9 is wound at least one turn along the outer circumferential surface of the brake disc 8 and then coupled to the brake lever 3.

The connection mode of the brake piece 9 and the brake pull rod 3 is as follows: the brake device is provided with a first connecting rod 16 rotatably connected with a rotating shaft 12, one end, far away from the rotating shaft 12, of the first connecting rod 16 is rotatably connected with a second connecting rod 17, one end, far away from the first connecting rod 16, of the second connecting rod 17 is rotatably connected with a sliding rod 18, a guide sliding groove 19 matched with the sliding rod 18 is arranged on a machine shell 1, the part, exceeding the guide sliding groove 19, of the sliding rod 18 is fixed with the other end (movable end) of a brake piece 9, specifically, the part, exceeding the guide sliding groove 19, of the sliding rod 18 forms a drag hook 20, and the other end (movable end) of the brake piece 9 is correspondingly provided with a hook hole.

The rotation direction of the first link 19 relative to the rotation shaft 12, the rotation direction of the second link 17 relative to the first link 16, and the rotation direction of the slide bar 18 relative to the second link 17 are all the same as the rotation direction of the rotary base 31 relative to the rotation shaft 12.

The rotating base 31 is formed with a first pushing block 21 and a second pushing block 22, and the first connecting rod 16 is located between the first pushing block 31 and the second pushing block 22. The first pushing block 21 is used for pushing the first connecting rod 16 to rotate counterclockwise on the rotating shaft 12 when the rotating base 31 rotates counterclockwise (pulls the handle part), the second pushing block 22 is used for pushing the first connecting rod 16 to rotate clockwise on the rotating shaft 12 when the rotating base 31 rotates clockwise,

when the first connecting rod 16 rotates counterclockwise on the rotating shaft 12, it finally drives the other end (movable end) of the braking piece 9 through the second connecting rod 17 and the slide bar 18, so that the braking piece 9 wraps the outer circumferential surface of the brake disc 8 tightly to decelerate; when the first connecting rod 16 rotates clockwise on the rotating shaft 12, it finally drives the other end (movable end) of the braking member 9 through the second connecting rod 17 and the slide bar 18, so that the braking member 9 loosens the outer circumferential surface of the brake disc 8.

Preferably, the second locking groove 15 is provided on the second push block 22.

In other embodiments, the controller may be further configured to control the rotational speed of the rotary drive member to decrease gradually or in steps as the trigger approaches the sensor until the rotational speed of the rotary drive member decreases to zero as the trigger reaches a stall control sensing region of the sensor.

In other embodiments, the rotary driving member may also be an engine, and two ends of the return spring may be connected to the rotary base and the housing respectively by means of hooks.

In other embodiments, the handle portion may be a part of a handle for lifting the vegetation repair device, when the vegetation repair device is lifted by the handle portion, the trigger is not located in the stop control sensing area of the sensor, but the return spring is in a compressed state, when the handle portion is released, the elastic deformation of the return spring is recovered to move the trigger to the stop control sensing area of the sensor, and the controller correspondingly controls the rotary driving member to stop, thereby achieving the safety protection function of saving power and stopping when the handle is released.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The safe electric control cutting equipment is characterized by comprising

A housing;

the rotating assembly is arranged on the machine shell and comprises a rotating driving piece and a rotating output shaft for driving the cutting tool, and the rotating output shaft is in power connection with a rotating shaft of the rotating driving piece;

the control end of the controller is electrically connected with the rotary driving piece;

brake equipment, it includes:

the brake pull rod can be arranged on the machine shell in a pulling way;

the trigger is arranged on the brake pull rod or movably arranged on the shell, and the trigger generates displacement along with the brake pull rod when the brake pull rod is pulled;

the sensor is used for sensing the trigger and generating a signal, the signal generating end of the sensor is connected with the signal receiving end of the controller, the sensor is provided with a stalling control sensing area, and when the trigger moves to the stalling control sensing area, the sensor senses and generates a stalling control signal.

2. A safety electrically controlled cutting device according to claim 1, wherein the trigger is a magnet and the sensor is a hall sensor.

3. A safety electric control cutting device according to claim 1, wherein the cutting tool is a saw chain, and a saw chain guide plate is correspondingly mounted on the casing.

4. A safety electrically controlled cutting device according to claim 1, wherein the brake lever comprises a rotatable base rotatably connected to the housing, and a handle portion connected to the rotatable base.

5. A safety electrically controlled cutting device according to claim 4, wherein the pull is located outside the housing and is flared to form a dust guard.

6. A safety electrically controlled cutting device according to claim 4, wherein the trigger is fixed to the rotatable mount.

7. A safety type electric control cutting device according to any one of claims 1-6, wherein a reset assembly is arranged on the casing, and the reset assembly is used for driving the brake pull rod to reset when the brake pull rod is released so as to enable the trigger to move away from the stalling control sensing area along with the displacement;

the mobile reset end of the reset component is connected or abutted with the brake pull rod.

8. A safety type electric control cutting device according to claim 7, characterized in that the reset assembly comprises a reset spring, one end of the reset spring is abutted or connected with the casing, and the other end of the reset spring is abutted or connected with the brake pull rod.

9. The safety type electric control cutting equipment according to claim 1, 2, 3, 4, 5, 6 or 8, characterized in that a brake disc is sleeved on the rotary output shaft, a brake piece is mounted on the brake pull rod or a brake piece is movably mounted on the casing;

when the brake pull rod is pulled, the brake piece follows up to cling to the brake disc.

10. A safety electrically controlled cutting machine according to claim 9, wherein the braking member is a braking band, one end of the braking member is fixed to the housing, and the other end of the braking member is attached to the braking rod along the outer surface of the brake disc.