CN209462143U - A kind of motor - Google Patents

Abstract

The utility model provides a kind of motor, belongs to motor field.This motor includes machine barrel and the shaft that is horizontally set in machine barrel, machine barrel is stretched out in the front-end and back-end of shaft, and the rear end of shaft is connected with the first flabellum, integrally formed with connecting cylinder on the front end outer wall of machine barrel, connecting cylinder and machine barrel coaxial line arrangement, and connecting cylinder is set in outside shaft；Sealing ring is cased with outside the front end of shaft, and sealing ring and rotating shaft sealing are connected, the edge of sealing ring is annular groove, and the two sidewalls that are arranged by face of annular groove and the bottom wall between two sidewalls form, the front end of connecting cylinder plugs in a ring groove, and the tortuous passageway that annular in shape and in shaft axial direction section is in concave is formed between connecting cylinder and annular groove；The second flabellum is also fixed in shaft, the second flabellum is in connecting cylinder, and the second fan blade rotating kinetic energy guidance air flows from back to front.This engine has the advantages that good dustproof effect.

Description

A kind of motor

Technical field

The utility model belongs to motor field, is related to a kind of motor, especially a kind of motor.

Background technique

Motor uses in the environment of foreign matter disperses sometimes, such as the main tapping of lathe is configured at for processing work The Processing Room of part.Main tapping uses in the environment of in cutting, the foreign matters such as the chip that generates and cutting fluid disperse, the main shaft Head has the motor for rotating main shaft, and when foreign matter invades the inside of motor, it is possible to generate winding exhausted Edge is bad or damages the function of bearing.

In response to the above problems, people's widespread practice is that oil sealing is arranged between shell and rotary shaft, to prevent peculiar smell from flying Enter.But above-mentioned mode is only applicable to the lower motor of revolving speed, when motor speed is excessively high, such as per minute more than 8000 Turn, in the case where such motor for being carried out at high speed rotation, oil sealing is easy to wear.Lead to not realize desired Sealing function.

Utility model content

The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of motor, solution Technical problem is the dust-proof effect how reinforced under high revolving speed.

The purpose of this utility model can be realized by the following technical scheme: a kind of motor, including machine barrel and level are set The shaft in machine barrel is set, machine barrel is stretched out in the front-end and back-end of shaft, and the rear end of shaft is connected with the first flabellum, feature It is, is arranged on the front end outer wall of the machine barrel integrally formed with connecting cylinder, connecting cylinder and machine barrel coaxial line, and connecting cylinder set It is located at outside shaft；Sealing ring is cased with outside the front end of the shaft, and sealing ring and rotating shaft sealing are connected, the edge of sealing ring is Annular groove, and the two sidewalls that are arranged by face of annular groove and the bottom wall between two sidewalls form, before the connecting cylinder End plugs in a ring groove, and it is in concave that annular in shape and in shaft axial direction section is formed between connecting cylinder and annular groove Tortuous passageway；The second flabellum is also fixed in the shaft, the second flabellum is in connecting cylinder, and the second fan blade rotating kinetic energy Guidance air flows from back to front.

Connecting cylinder and sealing ring edge Formation cross-section are in the tortuous passageway of concave, make shape between connecting cylinder and sealing ring At labyrinth sealing, under the premise of ensuring to form reliable sealing between connecting cylinder and sealing ring, and connecting cylinder and close can avoid Seal ring contact wear, to effectively extend the sealing effect of sealing ring and connecting cylinder, Lai Tigao dust-proof effect；Secondly, the second fan Leaf follows shaft to rotate together to guide air to flow from back to front, and in actual use, and gas is outside by tortuous passageway Discharge while realizing cleaning tortuous passageway, and can effectively prevent the impurity such as dust from entering in tortuous passageway, further to add Strong dust-proof effect.

In above-mentioned motor, the shape and size of the sealing ring are matched with shaft, and sealing ring and shaft It is fitted close and is connected.At this point, sealing ring inner wall and shaft outer wall tight abutment form sealing, have structure simple, easy to assembly The advantages of.

In above-mentioned motor, convex block is fixed in the shaft, convex block is between sealing ring and the second flabellum, And the rear end face of convex block and sealing ring offsets.Keep sealing ring disposable to limit the installation site of sealing ring by setting convex block It is installed in place, to improve property easy to assembly.

In above-mentioned motor, the convex block is connected by welding manner and shaft.

In above-mentioned motor, the width of the tortuous passageway is 0.15mm~0.4mm.

In above-mentioned motor, the width of the tortuous passageway is 0.3mm.

In above-mentioned motor, the sealing ring is made of plastic material.

Compared with prior art, this motor has the advantage that

1, connecting cylinder and sealing ring edge Formation cross-section are in the tortuous passageway of concave, are made between connecting cylinder and sealing ring Form labyrinth sealing, under the premise of ensuring to form reliable sealing between connecting cylinder and sealing ring, and can avoid connecting cylinder and Sealing ring contact wear, to effectively extend the sealing effect of sealing ring and connecting cylinder, Lai Tigao dust-proof effect.

2, the second flabellum follows shaft to rotate together to guide air to flow from back to front, and in actual use, gas It is discharged by tortuous passageway, while realizing cleaning tortuous passageway, and can effectively prevent the impurity such as dust from entering complications In channel, to further strengthen dust-proof effect.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of this motor.

Fig. 2 is the enlarged structure schematic diagram in Fig. 1 at A.

Fig. 3 is the enlarged structure schematic diagram in Fig. 2 at B.

In figure, 1, machine barrel；1a, connecting cylinder；2, shaft；3, the first flabellum；4, sealing ring；4a, annular groove；4a1, side wall； 4a2, bottom wall；5, convex block；6, the second flabellum；7, tortuous passageway.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figure 1, this motor includes machine barrel 1 and the shaft 2 that is horizontally set in machine barrel 1, the front end of shaft 2 and after Machine barrel 1 is stretched out at end, and the rear end of shaft 2 is connected with the first flabellum 3.

Wherein, integrally formed with connecting cylinder 1a, connecting cylinder 1a and 1 coaxial line of machine barrel arrangement on the front end outer wall of machine barrel 1, and Connecting cylinder 1a is set in outside shaft 2.Sealing ring 4 is cased with outside the front end of shaft 2, and sealing ring 4 and the sealing of shaft 2 are connected.At this In embodiment, sealing ring 4 is made of plastic material, and the shape and size of sealing ring 4 are matched with shaft 2, and sealing ring 4 and turn Axis 2, which is fitted close, to be connected, at this point, the inner sidewall of sealing ring 4 and the lateral wall tight abutment of shaft 2 form sealing, has assembling Advantage convenient, structure is simple.Naturally, using " sealing ring 4 is made of metal material, and sealing ring 4 by welding with The sealing of shaft 2 is connected " this scheme is also possible.

It further illustrates, be also fixed with the second flabellum 6 as depicted in figs. 1 and 2, in shaft 2, the second flabellum 6 is in connection In cylinder 1a, and the rotation of the second flabellum 6 is able to guide air and flows from back to front.In the present embodiment, the second flabellum 6 is annular in shape, the Two flabellums 6 are set in outside shaft 2, and the second flabellum 6 and shaft 2 are fixedly connected with by welding manner.Convex block 5 is fixed in shaft 2, Convex block 5 is between sealing ring 4 and the second flabellum 6, and convex block 5 and the rear end face of sealing ring 4 offset.By the way that convex block 5 is arranged, with The installation site for limiting sealing ring 4, is installed in place sealing ring 4 disposably, to improve property easy to assembly.It is preferred that convex block 5 passes through Welding manner and shaft 2 are connected.

As shown in Fig. 2, the edge of sealing ring 4 is annular groove 4a, and the two sidewalls 4a1 that is arranged by face of annular groove 4a and Bottom wall 4a2 composition between the 4a1 of two sidewalls.The front end of connecting cylinder 1a is plugged in annular groove 4a, and connecting cylinder 1a and annular The tortuous passageway 7 that annular in shape and in 2 axial direction of shaft section is in concave is formed between slot 4a.The width of tortuous passageway 7 For 0.15mm~0.4mm, and preferably this width is 0.3mm.

Connecting cylinder 1a and 4 edge Formation cross-section of sealing ring are in the tortuous passageway 7 of concave, make connecting cylinder 1a and sealing ring Labyrinth sealing is formed between 4, under the premise of ensuring to form reliable sealing between connecting cylinder 1a and sealing ring 4, and can avoid 4 contact wear of connecting cylinder 1a and sealing ring, thus effectively extend the sealing effect of sealing ring 4 and connecting cylinder 1a, it is dust-proof to improve Effect；Secondly, the second flabellum 6 follows shaft 2 to rotate together to guide air to flow from back to front, and in actual use, gas Body is discharged by tortuous passageway 7, while realizing cleaning tortuous passageway 7, and the impurity such as dust can effectively be prevented to enter In tortuous passageway 7, to further strengthen dust-proof effect.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (7)

1. a kind of motor, including machine barrel (1) and the shaft (2) being horizontally set in machine barrel (1), the front end of shaft (2) is with after Machine barrel (1) is stretched out in end, and the rear end of shaft (2) is connected with the first flabellum (3), which is characterized in that before the machine barrel (1) It holds integrally formed with connecting cylinder (1a), connecting cylinder (1a) and machine barrel (1) coaxial line arrangement on outer wall, and connecting cylinder (1a) is set in Shaft (2) is outside；It is cased with sealing ring (4) outside the front end of the shaft (2), and sealing ring (4) and shaft (2) sealing are connected, it is close The edge of seal ring (4) is annular groove (4a), and the two sidewalls (4a1) that be arrangeds by face of annular groove (4a) and is in two sidewalls Bottom wall (4a2) composition between (4a1), the front end of the connecting cylinder (1a) is plugged in annular groove (4a), and connecting cylinder The tortuous passageway (7) that annular in shape and in shaft (2) axial direction section is in concave is formed between (1a) and annular groove (4a)； It is also fixed with the second flabellum (6) in the shaft (2), the second flabellum (6) is in connecting cylinder (1a), and the second flabellum (6) Rotation is able to guide air and flows from back to front.

2. motor according to claim 1, which is characterized in that the shape and size of the sealing ring (4) with turn Axis (2) matching, and sealing ring (4) is fitted close with shaft (2) and is connected.

3. motor according to claim 2, which is characterized in that be fixed with convex block (5), convex block in the shaft (2) (5) it is between sealing ring (4) and the second flabellum (6), and convex block (5) and the rear end face of sealing ring (4) offset.

4. motor according to claim 3, which is characterized in that the convex block (5) passes through welding manner and shaft (2) It is connected.

5. motor according to claim 1 or 2 or 3 or 4, which is characterized in that the width of the tortuous passageway (7) is 0.15mm~0.4mm.

6. motor according to claim 5, which is characterized in that the width of the tortuous passageway (7) is 0.3mm.

7. motor according to claim 2, which is characterized in that the sealing ring (4) is made of plastic material.