CN110919457A

CN110919457A - Bidirectional power head

Info

Publication number: CN110919457A
Application number: CN202010100948.XA
Authority: CN
Inventors: 凌俊
Original assignee: Foshan Shunde Lingshi Mechanical And Electrical Equipment Co Ltd
Current assignee: Foshan Shunde Lingshi Mechanical And Electrical Equipment Co Ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2020-03-27
Anticipated expiration: 2040-02-19
Also published as: CN110919457B

Abstract

The invention discloses a bidirectional power head which comprises a shell, a first output shaft, a second output shaft, a sleeve, blades, a directional clutch and a radiator, wherein the shell is provided with a first output shaft and a second output shaft; a cavity is formed in the shell, the first output shaft penetrates through the cavity, the sleeve is sleeved on the first output shaft, the blades are arranged on the sleeve, and the blades and the sleeve are positioned in the cavity; a directional clutch is arranged between the sleeve and the first output shaft; the second output shaft is vertical to the first output shaft, a first bevel gear is sleeved on the sleeve, a second bevel gear is arranged at the tail end of the second output shaft, and the first bevel gear is meshed with the second bevel gear; the shell is provided with a liquid inlet and a liquid outlet. According to the bidirectional power head, the blades are arranged on the sleeve, the sleeve and the blades can be synchronously driven to rotate when the first output shaft rotates, the rotating blades enable the cooling liquid to form self circulation between the cavity and the radiator, heat in the bidirectional power head is continuously transmitted out, and the bidirectional power head is prevented from being continuously heated in the working process.

Description

Bidirectional power head

Technical Field

The invention relates to the field of machine tools, in particular to a bidirectional power head.

Background

The bidirectional power head in the prior art comprises two output shafts which are vertical to each other, and end heads of the two output shafts are provided with milling cutters; one output shaft is connected with a power device and is called a driving shaft, and the other output shaft is called a driven shaft; the driven shaft and the driving shaft realize transmission through a pair of bevel gears. The prior art bi-directional power head has the defects that:

1. the driving shaft and the driven shaft always keep linkage, so that the use is inconvenient;

2. the heat generated by the bevel gear used for transmission in the working process is difficult to remove, and the temperature of the whole power head is easy to rise after a period of time, so that the use is influenced.

Disclosure of Invention

The invention aims to provide a novel bidirectional power head, so that a driving shaft and a driven shaft can independently select whether to be linked, and a heat dissipation system is configured for the power head.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a bidirectional power head comprises a shell, a first output shaft, a second output shaft, a sleeve, a blade, a directional clutch and a radiator;

a cavity is arranged in the shell, a first output shaft penetrates through the cavity, and the first output shaft is used for being connected with a power device (generally a motor); the sleeve is sleeved on the first output shaft, the blades are arranged on the sleeve, and the blades and the sleeve are positioned in the cavity; a directional clutch is arranged between the sleeve and the first output shaft; the directional clutch is used for realizing one-way transmission between the sleeve and the first output shaft, and when the first output shaft rotates forwards, the sleeve rotates synchronously along with the first output shaft; when the first output shaft rotates reversely, the sleeve does not rotate synchronously with the first output shaft any more and keeps static by itself; (forward and reverse rotation as described in this paragraph are used only to describe two opposite directions of rotation and are not meant to specifically refer to clockwise or counterclockwise rotation);

the second output shaft extends into the cavity, the second output shaft is perpendicular to the first output shaft, a first bevel gear is sleeved on the sleeve, a second bevel gear is arranged at the tail end of the second output shaft, and the first bevel gear is meshed with the second bevel gear;

the shell is provided with a liquid inlet and a liquid outlet which are communicated with the cavity and are both connected to the radiator.

The heads of the first output shaft and the second output shaft are both used for connecting a milling cutter, and a cavity of the shell is filled with cooling liquid; when the first output shaft rotates forwards, the sleeve and the first bevel gear rotate synchronously with the first output shaft so as to drive the second output shaft to rotate; the blades fixedly arranged on the sleeve rotate, and drive the cooling liquid to flow forwards to the liquid outlet, the radiator and the liquid inlet in sequence, so that the cooling liquid forms self circulation, and the heat generated by the whole bidirectional power head (particularly two bevel gears) is led out to the radiator to form self heat dissipation;

when the first output shaft rotates reversely, the sleeve, the second output shaft and the blades are kept static; in the stage, as the first bevel gear and the second bevel gear do not work, the heat generated in the power head is less, and a heat dissipation system does not need to be started;

the bidirectional power head allows a user to select the bidirectional power head by himself, if the user needs bidirectional milling operation, the power device is controlled to rotate forwards, and the sleeve, the second output shaft and the blades rotate synchronously; if the user only needs one-way milling operation, the power device is controlled to rotate reversely, and only the milling cutter on the first output shaft rotates at the moment (note that the user needs to replace different milling cutters when controlling the forward rotation and the reverse rotation of the first output shaft, so that the cutting edge direction of the milling cutter is matched with the rotation direction of the first output shaft).

Furthermore, the liquid inlet is positioned on the back surface of the blade, and the liquid outlet is positioned on the front surface of the blade, so that cooling liquid formed by the blade directly enters the liquid outlet; the front face of the blade points in the direction of the liquid flow generated by the rotation of the blade.

Furthermore, valves are arranged at the liquid inlet and the liquid outlet; if the user only needs to perform one-way milling operation (at the moment, the heat dissipation system is not started), the user can close the valve and then disassemble the heat radiator.

Furthermore, a plurality of shunt channels connected in parallel are arranged in the radiator, and radiating fins are arranged on the surface of the radiator; the heat sink itself should be made of metal (e.g. aluminum) with good heat conductivity to increase the heat dissipation effect.

Furthermore, the tail end of the first output shaft is provided with a coupler which is convenient for connecting a power device.

Further, the surface of casing is provided with the protective sheath, and the shaft coupling is located the protective sheath, and the protective sheath can protect shaft coupling and first output shaft, avoids the striking that probably appears in the application.

Furthermore, the directional clutch comprises a star wheel and a roller, the star wheel is sleeved on the first output shaft, and the roller is located in a wedge-shaped space between the star wheel and the sleeve.

Further, bearings are arranged between the first output shaft and the shell, between the second output shaft and the shell and between the sleeve and the shell.

Has the advantages that: (1) according to the bidirectional power head, the blades are arranged on the sleeve, the sleeve and the blades can be synchronously driven to rotate when the first output shaft rotates, the rotating blades enable the cooling liquid to form self circulation between the cavity and the radiator, heat in the bidirectional power head is continuously transmitted out, and the bidirectional power head is prevented from being continuously heated in the working process. (2) According to the bidirectional power head, the directional clutch is arranged between the sleeve and the first output shaft, so that a user can realize unidirectional milling or bidirectional milling operation by controlling the rotation direction of the first output shaft, and the applicability of a machine tool is improved. (3) The two-way power head is provided with the valves at the liquid inlet and the liquid outlet, so that a user can disassemble the radiator after closing the valves, and the user can conveniently select whether to install the radiator according to the self requirement and conveniently replace the cooling liquid.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a bidirectional powerhead according to embodiment 1.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a plan view of the heat sink in embodiment 1.

Wherein: 100. a housing; 110. a cavity; 120. a bearing; 130. a liquid inlet; 140. a liquid outlet; 150. a valve; 160. a protective sleeve; 200. a first output shaft; 300. a second output shaft; 310. a second bevel gear; 400. a sleeve; 410. a first bevel gear; 500. a blade; 600. a directional clutch; 610. a star wheel; 620. a roller; 700. a heat sink; 710. a flow dividing channel; 720. a heat dissipating fin; 800. a coupling; 900. provided is a milling cutter.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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.

It should be noted that if directional indications such as up, down, left, right, front, and rear … … are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship, motion, and the like between the components in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, the bidirectional power head of the present embodiment includes a housing 100, a first output shaft 200, a second output shaft 300, a sleeve 400, a blade 500, a directional clutch 600, a heat sink 700, and a coupling 800;

a cavity 110 is arranged in the housing 100, the first output shaft 200 passes through the cavity 110, a coupler 800 is arranged at the tail end of the first output shaft 200, the first output shaft 200 is connected with a power device (generally a motor) through the coupler 800, and the head of the first output shaft 200 is connected with a milling cutter 900; a bearing 120 is arranged between the first output shaft 200 and the housing 100;

the sleeve 400 is sleeved on the first output shaft 200, the vane 500 is arranged on the sleeve 400, and the vane 500 and the sleeve 400 are positioned in the cavity 110; a bearing 120 is disposed between the sleeve 400 and the housing 100; a directional clutch 600 is arranged between the sleeve 400 and the first output shaft 200; as shown in fig. 2, the directional clutch 600 includes a star wheel 610 and rollers 620, the star wheel 610 is fitted over the first output shaft 200, and the rollers 620 are located in the wedge-shaped space between the star wheel 610 and the sleeve 400; the directional clutch 600 is used for realizing one-way transmission between the sleeve 400 and the first output shaft 200, and when the first output shaft 200 rotates clockwise, the sleeve 400 rotates synchronously with the first output shaft 200; when the first output shaft 200 rotates counterclockwise, the sleeve 400 no longer rotates in synchronization with the first output shaft 200 but remains stationary by itself;

the second output shaft 300 extends into the cavity 110, a bearing 120 is arranged between the second output shaft 300 and the shell 100, the second output shaft 300 is perpendicular to the first output shaft 200, a first bevel gear 410 is sleeved on the sleeve 400, a second bevel gear 310 is arranged at the tail end of the second output shaft 300, and the first bevel gear 410 is meshed with the second bevel gear 310; the head of the second output shaft 300 is connected with the milling cutter 900;

the housing 100 is provided with a liquid inlet 130 and a liquid outlet 140, the liquid inlet 130 is located at the back of the blade 500, the liquid outlet 140 is located at the front of the blade 500, and the front of the blade 500 points to the direction of the liquid flow generated by the rotation of the blade; the liquid inlet 130 and the liquid outlet 140 are respectively provided with a valve 150, and the liquid inlet 130 and the liquid outlet 140 are communicated with the cavity 110 and are both connected to the radiator 700; as shown in fig. 3 (for convenience of illustration, the heat dissipation fins 720 are hidden in fig. 3), a plurality of shunt channels 710 connected in parallel are disposed in the heat sink 700, and the heat dissipation fins 720 are disposed on the surface of the heat sink 700; the heat sink 700 itself is made of a metal (e.g., aluminum) that conducts heat well;

the surface of the housing 100 is provided with a protective sheath 160, and the coupling 800 is located within the protective sheath 160.

When the bidirectional power head of the embodiment is applied, the cavity 110 of the shell 100 is filled with cooling liquid; when the first output shaft 200 rotates clockwise, the sleeve 400 and the first bevel gear 410 rotate synchronously with the first output shaft 200, and further drive the second output shaft 300 to rotate; the blades 500 fixedly mounted on the sleeve 400 rotate, and the blades 500 drive the cooling liquid to flow forwards to the liquid outlet 140, the radiator 700 and the liquid inlet 130 in sequence, so that the cooling liquid forms self-circulation, and the heat generated by the whole bidirectional power head (especially two bevel gears) is led out to the radiator 700 to form self-heat dissipation;

when the first output shaft 200 rotates counterclockwise, the sleeve 400, the second output shaft 300, and the vanes 500 all remain stationary; at this stage, because the first bevel gear 410 and the second bevel gear 310 do not work, less heat is generated in the power head, and a heat dissipation system does not need to be started;

the bidirectional power head of the embodiment allows a user to select the bidirectional power head by himself, if the user needs bidirectional milling operation, the power device is controlled to rotate clockwise, and the sleeve 400, the second output shaft 300 and the blade 500 all rotate synchronously; if the user only needs one-way milling operation, the power device is controlled to rotate anticlockwise, and only the milling cutter 900 on the first output shaft 200 rotates at the moment (note that the user needs to replace different milling cutters 900 when controlling the first output shaft 200 to rotate clockwise and anticlockwise, so as to ensure that the cutting edge direction of the milling cutter 900 is matched with the rotation direction of the first output shaft 200). If the user needs to perform the unidirectional milling operation for a long time, the heat sink 700 can be detached after the valve 150 is closed, so that the structure of the whole power head is simplified.

Although the embodiments of the present invention have been described in the specification, these embodiments are merely provided as a hint, and should not limit the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit of the invention and are intended to be within the scope of the invention.

Claims

1. A bidirectional power head is characterized in that: the clutch comprises a shell (100), a first output shaft (200), a second output shaft (300), a sleeve (400), a blade (500), a directional clutch (600) and a radiator (700);

a cavity (110) is arranged in the shell (100), a first output shaft (200) penetrates through the cavity (110), and the first output shaft (200) is used for being connected with a power device; the sleeve (400) is sleeved on the first output shaft (200), the blade (500) is installed on the sleeve (400), and the blade (500) and the sleeve (400) are located in the cavity (110); a directional clutch (600) is arranged between the sleeve (400) and the first output shaft (200);

the second output shaft (300) extends into the cavity (110), the second output shaft (300) is perpendicular to the first output shaft (200), a first bevel gear (410) is sleeved on the sleeve (400), the second bevel gear (310) is arranged at the tail end of the second output shaft (300), and the first bevel gear (410) is meshed with the second bevel gear (310);

the shell (100) is provided with a liquid inlet (130) and a liquid outlet (140), and the liquid inlet (130) and the liquid outlet (140) are communicated with the cavity (110) and are both connected to the radiator (700).

2. The bi-directional powerhead of claim 1, wherein: the liquid inlet (130) is positioned at the back of the blade (500), and the liquid outlet (140) is positioned at the front of the blade (500).

3. The bi-directional powerhead of claim 2, wherein: valves (150) are arranged at the liquid inlet (130) and the liquid outlet (140).

4. The bi-directional powerhead of claim 1, wherein: a plurality of shunt channels (710) connected in parallel are arranged in the radiator (700).

5. The bi-directional powerhead of claim 1, wherein: the surface of the radiator (700) is provided with radiating fins (720).

6. The bi-directional powerhead of claim 1, wherein: and the tail end of the first output shaft (200) is provided with a coupling (800).

7. The bi-directional powerhead of claim 6, wherein: the surface of casing (100) is provided with protective sheath (160), and shaft coupling (800) are located protective sheath (160).

8. The bi-directional powerhead of claim 1, wherein: the directional clutch (600) comprises a star wheel (610) and rollers (620), the star wheel (610) is sleeved on the first output shaft (200), and the rollers (620) are located in a wedge-shaped space between the star wheel (610) and the sleeve (400).

9. The bi-directional powerhead of claim 1, wherein: bearings (120) are arranged between the first output shaft (200) and the shell (100), between the second output shaft (300) and the shell (100) and between the sleeve (400) and the shell (100).