CN210183146U

CN210183146U - Flange waterproof structure for variable pitch motor

Info

Publication number: CN210183146U
Application number: CN201921099284.9U
Authority: CN
Inventors: Zhiwei Gao; 高志伟
Original assignee: SUZHOU LEGO MOTORS CO Ltd
Current assignee: SUZHOU LEGO MOTORS CO Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-03-24
Anticipated expiration: 2029-07-15

Abstract

The utility model provides a flange waterproof structure for a variable pitch motor, which comprises a flange end cover and a variable pitch motor main shaft, wherein the flange end cover comprises a flange disc body; a flange through hole is formed in the center of the flange disc body and used for penetrating through a main shaft of the variable pitch motor; the flange through hole is divided into three parts: the first through hole section at the front end, the second through hole section in the middle and the third through hole section at the rear end, wherein the diameter of the second through hole section is smaller than that of the first through hole section and that of the third through hole section; through the V-shaped sealing ring and the skeleton oil seal installed in the waterproof cover installed additionally on the motor spindle and the first through hole section and the third through hole section, the effective cooperation of the three parts can greatly improve the waterproof and oil-proof capabilities of the variable pitch motor.

Description

Flange waterproof structure for variable pitch motor

Technical Field

The utility model relates to a mechanical connecting piece, especially a special-shaped flange for becoming oar motor.

Background

The variable pitch motor is a device adopted in a wind power generation device for adapting to different wind speed environments and ensuring that a power generation variable pitch mechanism can stably run. The flange is as traditional mechanical connection component, and the application in the variable pitch motor is very extensive, in order to ensure the leakproofness when traditional flange installation, can install the skeleton oil blanket additional on flange and variable pitch motor main shaft complex through-hole one side, after long-term work, if the condition of oil leak appears in the gear that mutually supports with main shaft and flange, when the shaft body was upwards, gear oil can flow in the variable pitch motor to on gradually flowing to the friction disk of stopper, cause the unusual reduction of braking moment.

In addition, the variable pitch motor on the market at present comprises a brake, a winding, a stator, a rotor, a rotary transformer and other components, the brake component is often installed on one side of the flange, an electric wire for connecting a power supply is arranged on the brake, the traditional flange needs a larger space for avoiding the wire, or the installation is difficult due to the compression of the installation space, or the design of a flange end cover cannot be completed due to the interference with a flange hole.

Disclosure of Invention

The utility model provides a flange waterproof construction for becoming oar motor through carrying out structural change to the flange through-hole, sets up multistage water-proof measures in flange through-hole and the cooperation department of becoming oar motor spindle, makes this product can reach good protecting effect to the seepage of diversified, multi-angle.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a flange waterproof construction for becoming oar motor which characterized in that: the variable-pitch motor comprises a flange end cover and a variable-pitch motor main shaft, wherein the flange end cover comprises a flange disc body; a flange through hole is formed in the center of the flange disc body and used for penetrating through the main shaft of the variable pitch motor; the connecting part of the variable pitch motor main shaft and the flange end cover is the front end of the variable pitch motor main shaft, and the mounting part of the variable pitch motor main shaft and the variable pitch motor is the rear end of the variable pitch motor main shaft; the flange through hole divides into three parts in proper order along becoming oar motor spindle axial from the front end to the rear end, is respectively: the first through hole section at the front end, the second through hole section in the middle and the third through hole section at the rear end, wherein the diameter of the second through hole section is smaller than that of the first through hole section and that of the third through hole section;

the hole wall of the first through hole section extends towards the axial front end and is turned over to form a radial bending part; a waterproof cover is sleeved on the front end of the main shaft of the variable pitch motor, close to the first through hole section, the waterproof cover is relatively fixed with the main shaft of the variable pitch motor, the inner edge of the waterproof cover is in sealing fit with the main shaft of the variable pitch motor, the outer periphery of the waterproof cover is folded towards the rear end of the main shaft of the variable pitch motor to form a waterproof flange, and the waterproof flange surrounds the periphery of the bent part; a V-shaped sealing ring is arranged in the first through hole section, the inner edge of the V-shaped sealing ring is fixedly and hermetically connected with the main shaft of the variable pitch motor, and one axial end of the V-shaped sealing ring is abutted against a surface, facing to the axial front end, of the joint of the first through hole section and the second through hole section and is used as a dynamic friction surface; and a framework oil seal is arranged in the third through hole section, the framework oil seal is relatively fixed with the hole wall of the third through hole section, and the inner edge of the framework oil seal and the main shaft of the variable pitch motor form a dynamic seal.

The relevant content in the above technical solution is explained as follows:

1. in the scheme, the waterproof cover, the V-shaped sealing ring and the variable pitch motor spindle are in interference fit in a fixed sealing connection mode, and the framework oil seal is also in interference fit with the hole wall of the third through hole section;

2. in the scheme, the hole wall of the first through hole section can be folded to form a folding part, the waterproof effect is optimal at the moment, the leaked water can be directly discharged through the water leakage groove formed by folding basically, and the part of the leaked water which is not folded and extends outwards can be matched with the waterproof flange of the waterproof cover;

3. in the above scheme, the words indicating directions such as the front end and the rear end are only words created for more clearly expressing the three-section structure of the flange through hole, and the waterproof effect cannot be realized according to the directions of the front end and the rear end strictly in the actual implementation process; for example, the front end and the rear end are changed into a left end and a right end, which are feasible schemes, and the key point is that the three-section structure of the flange through hole, the position relationship and the connection relationship of components in the flange through hole, and the like are the key points for realizing the waterproof effect;

the utility model discloses theory of operation and advantage as follows: the special design is made on the flange through hole of the flange end cover, the through hole matched with the main shaft of the variable pitch motor is designed in a three-section mode, different waterproof and oilproof parts are additionally arranged in the matched gap, and the tightness condition of the whole machine is achieved through layer-by-layer waterproof and oilproof measures. The method has the advantages of low cost, convenient processing and good industrial applicability.

Drawings

FIG. 1 is a schematic view of the waterproof structure of the present invention;

FIG. 2 is a sectional view of the flange end cap of the present invention;

figure 3 is the side view of the flange end cover of the present invention.

In the above drawings: 1. a variable pitch motor main shaft; 2. a flange end cover; 3. a flange plate body; 4. a flange neck; 5. a flange through hole; 6. a first via section; 7. a second via section; 8. a third through-hole section; 9. a bending part; 10. a waterproof cover; a V-shaped seal ring; 12. framework oil seal; 13. a relief portion; 14. a yielding groove.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): referring to the attached drawing 1, the flange waterproof structure for the variable pitch motor comprises a flange end cover 2 and a variable pitch motor spindle 1, wherein the flange end cover 2 comprises a flange disc body 3; a flange through hole 5 is formed in the center of the flange disc body 3 and used for penetrating through the variable pitch motor spindle 1; to better describe the look of the whole organization, we define: the joint of the variable pitch motor main shaft 1 and the flange end cover 2 is the front end of the variable pitch motor main shaft 1, and the mounting part of the variable pitch motor main shaft 1 and the variable pitch motor is the rear end of the variable pitch motor main shaft 1; the front end and the rear end are only words created for convenience of description, and the front end and the rear end are not required to be strictly arranged in the front-rear position in the actual implementation process to achieve the waterproof effect of the mechanism.

Flange through-hole 5 divides into three parts in proper order along 1 axial front end to the rear end of oar motor spindle, is respectively: a first through hole section 6 at the front end, a second through hole section 7 in the middle, and a third through hole section 8 at the rear end, wherein the diameter of the second through hole section 7 is smaller than that of the first through hole section 6 and the third through hole section 8;

the hole wall of the first through hole section 6 extends towards the axial front end and is turned over to form a radial bending part 9; a waterproof cover 10 is sleeved on the front end of the variable pitch motor spindle 1 close to the first through hole section 6, the waterproof cover 10 is fixed relative to the variable pitch motor spindle 1, the inner edge of the waterproof cover 10 is in interference fit or transition fit with the variable pitch motor spindle 1, the outer periphery of the waterproof cover 10 is turned over towards the rear end of the variable pitch motor spindle 1 to form a waterproof flange, and the waterproof flange surrounds the outer periphery of the bent part 9; the hole wall of the first through hole section 6 can be folded to form a folded part 9, or can be not folded and only extend a part outwards to be matched with a waterproof rib of the waterproof cover 10;

a V-shaped sealing ring 11 is arranged in the first through hole section 6, the inner edge of the V-shaped sealing ring 11 is fixedly and hermetically connected with the main shaft 1 of the variable pitch motor, and one axial end of the V-shaped sealing ring 11 is abutted against a surface facing to the axial front end of the joint of the first through hole section 6 and the second through hole section 7 and serves as a first dynamic friction surface; a framework oil seal 12 is arranged in the third through hole section 8, the framework oil seal 12 is relatively fixed with the hole wall of the third through hole section 8, and the inner edge of the framework oil seal 12 and the variable pitch motor spindle 1 form a dynamic seal. The waterproof cover 10, the V-shaped sealing ring 11 and the variable pitch motor spindle 1 are in interference fit in a fixed sealing connection mode, and the framework oil seal 12 and the hole wall of the third through hole section 8 are in interference fit;

preferably, the flange end cover 2 is further provided with a flange neck 4, and the flange neck 4 is arranged on one surface of the flange disc body 3 facing the rear end of the main shaft 1 of the variable pitch motor and is integrally connected with the flange disc body 3; the flange neck 4 is provided with a yielding part 13, one side of the yielding part 13 is penetrated to the end face of the flange neck 4 departing from the flange disc body 3, and the other side of the yielding part 13 corresponds to the position of a brake power line in the variable pitch motor. In the actual use process, the power line of the brake in the pitch motor can be placed in the abdicating part, and the power line does not need to be abdicating through amplification or integral displacement of the flange end cover 2.

Preferably, the position of the yielding part 13 is a radial through hole (which can also be led out through an axial hole and a stuffing box) arranged on the flange neck part 4, and the position of the radial through hole corresponds to the position of a brake power line in the variable pitch motor. This is done in order to pass the power cord of the brake through the radial through hole of the flange neck 4. In addition, a power supply connector can be arranged outside the radial through hole of the flange end cover 2, so that power supply for the brake is facilitated.

Preferably, the reinforcing ribs are correspondingly arranged at positions corresponding to the mounting holes of the flange plate body 3, and each reinforcing rib is provided with a yielding groove 14 at a position corresponding to the mounting hole of the flange plate body 3, so that a sufficient construction space is conveniently reserved for the subsequent mounting of the flange end cover.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a flange waterproof construction for becoming oar motor which characterized in that: the variable-pitch motor comprises a flange end cover (2) and a variable-pitch motor spindle (1), wherein the flange end cover (2) comprises a flange disc body (3); a flange through hole (5) is formed in the center of the flange disc body (3) and used for penetrating through the variable pitch motor spindle (1); the joint of the variable pitch motor spindle (1) and the flange end cover (2) is the front end of the variable pitch motor spindle (1), and the mounting part of the variable pitch motor spindle (1) and the variable pitch motor is the rear end of the variable pitch motor spindle (1);

flange through-hole (5) divide into three parts in proper order along becoming oar motor spindle (1) axial from the front end to the rear end, do respectively: the structure comprises a first through hole section (6) at the front end, a second through hole section (7) in the middle and a third through hole section (8) at the rear end, wherein the diameter of the second through hole section (7) is smaller than that of the first through hole section (6) and the third through hole section (8);

the hole wall of the first through hole section (6) extends towards the axial front end and is turned over to form a radial bending part (9); a waterproof cover (10) is sleeved on the front end of the variable pitch motor spindle (1) close to the first through hole section (6), the waterproof cover (10) is fixed relative to the variable pitch motor spindle (1), the inner edge of the waterproof cover (10) is in sealing fit with the variable pitch motor spindle (1), the periphery of the waterproof cover (10) is turned over towards the rear end of the variable pitch motor spindle (1) to form a waterproof flange, and the waterproof flange surrounds the periphery of the bending part (9); a V-shaped sealing ring (11) is arranged in the first through hole section (6), the inner edge of the V-shaped sealing ring (11) is fixedly and hermetically connected with the main shaft (1) of the variable pitch motor, and one axial end of the V-shaped sealing ring (11) is abutted to a surface, facing to the axial front end, of the joint of the first through hole section (6) and the second through hole section (7), and the surface serves as a dynamic friction surface; and a framework oil seal (12) is arranged in the third through hole section (8), the framework oil seal (12) is relatively fixed with the hole wall of the third through hole section (8), and the inner edge of the framework oil seal (12) and the variable pitch motor spindle (1) form a dynamic seal.

2. A pitch motor according to claim 1, wherein: the flange end cover is also provided with a flange neck (4), and the flange neck (4) is arranged on one surface of the flange disc body (3) facing the rear end of the variable pitch motor spindle (1) and is integrally connected with the flange disc body (3); the flange is characterized in that a yielding part (13) is arranged on the flange neck (4), one side of the yielding part (13) is penetrated to the end face, deviating from the flange disc body (3), of the flange neck (4), and the other side of the yielding part (13) corresponds to the position of a brake power line in the variable pitch motor.

3. A pitch motor according to claim 2, wherein: the yielding part (13) is a radial through hole arranged on the flange neck part (4), and the position of the through hole corresponds to the position of a brake power line in the variable pitch motor.

4. A pitch motor according to claim 2, wherein: the flange neck (4) sets up the strengthening rib corresponding to the position of flange disk body (3) mounting hole, and this strengthening rib possesses groove of stepping down (14) in the position that corresponds flange disk body (3) mounting hole for conveniently carry out the installation of flange end cover (2).