CN218564327U - Flexible gear sealing structure of harmonic reducer - Google Patents

Abstract

The utility model discloses a harmonic reduction gear flexbile gear seal structure relates to harmonic reduction gear flexbile gear technical field, including flexbile gear, rigid gear, wave generator, the inside cover of flexbile gear is equipped with wave generator, and the rigid gear is equipped with to the outside external tooth portion cover of flexbile gear, and the inboard of rigid gear is equipped with external tooth portion complex internal tooth portion, rigid gear side surface dismantles through a plurality of screws a and is connected with closing plate an, this harmonic reduction gear flexbile gear seal structure, is different from prior art, this harmonic reduction gear flexbile gear seal structure, utilizes inflation sealing mechanism, can aerify with the help of external gas charging equipment through the charging connector, and makes the inflation gasbag inflate the extrusion in the outside of output shaft, and cooperates the effect of annular slider, and then when making the output shaft rotate, can drive the annular slider that the inflation gasbag is connected and rotate on closing plate a or closing plate b, and then can reach sealed effectual, still do not influence the operation of output shaft.

Description

Flexible gear sealing structure of harmonic reducer

Technical Field

The utility model relates to a harmonic speed reducer ware flexbile gear technical field specifically is a harmonic speed reducer ware flexbile gear seal structure.

Background

Harmonic reducers are one type of harmonic drive. The harmonic reducer mainly includes: the rigid wheel, the flexible wheel and the wave generator are all absent. Wherein, the tooth track of the rigid gear is slightly larger than the tooth track of the flexible gear. The length of the wave generator is larger than the diameter of the inner circle of the undeformed flexible gear: when the wave generator is installed in the inner circle of the flexible gear, the flexible gear is forced to generate elastic deformation and is elliptical, and the gear teeth of the flexible gear at the long axis of the flexible gear are inserted into the gear teeth grooves of the rigid gear to be in a complete meshing state; and the two wheel teeth at the short shaft are not contacted at all and are in a disengaged state. The engaging or disengaging state is between the engaging and disengaging processes. When the wave generator rotates continuously, the flexible gear is forced to deform continuously, so that the working states of the two gear teeth are changed continuously in the processes of meshing, meshing and disengaging, so-called staggered tooth motion is generated, and the motion transmission of the driving wave generator and the flexible gear is realized.

At present, current harmonic reducer ware flexbile gear seal structure is at the in-process of in-service use, when installing in the output shaft outside, because the junction of flexbile gear and wave generator does not set up corresponding seal structure, lead to external impurity to easily enter into between flexbile gear and the wave generator, increase frictional force between flexbile gear and the wave generator, and then influence the life of flexbile gear and wave generator, secondly, there is the gap also in the junction between flexbile gear and the external output shaft, and then make impurity also easily enter into the inside of flexbile gear, and then further influence the life of flexbile gear and wave generator, for this reason, we propose a harmonic reducer ware flexbile gear seal structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a harmonic speed reducer ware flexbile gear seal structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a harmonic speed reducer ware flexbile gear seal structure, includes flexbile gear, rigid gear, wave generator, the inside cover of flexbile gear is equipped with wave generator, and the rigid gear is equipped with to the outside external tooth portion cover of flexbile gear, and the inboard of rigid gear is equipped with the internal tooth portion that cooperatees with external tooth portion, rigid gear side surface is dismantled through a plurality of screws a and is connected with closing plate an, and one side surface that the rigid gear was kept away from to the flexbile gear can dismantle through a plurality of screws b and is connected with closing plate b, and the axle hole department on closing plate a and the closing plate b all installs inflation sealing mechanism.

Preferably, the sealing plate a and the sealing plate b are provided with a sealing ring on their opposite side walls, and the sealing ring on the sealing plate a is larger in diameter than the sealing ring on the sealing plate b.

Preferably, all set up on the closing plate a with screw a matched with perforation a, rigid wheel side surface all set up with screw a matched with screw a, all set up on the closing plate b with screw b matched with perforation b, the flexible gear is kept away from one side surface of rigid wheel and all is seted up with screw b matched with screw b, unload a plurality of screws a through the pine, and then make closing plate a can dismantle, secondly, unload a plurality of screws b through the pine, and then can dismantle closing plate b.

Preferably, the expansion sealing mechanism comprises an annular sliding block which is rotatably connected with the shaft hole on the sealing plate a or the sealing plate b, and two ends of the cross section of the annular sliding block are respectively in a T-shaped structure and an inverted T-shaped structure.

Preferably, the inner wall of axle hole department has seted up the annular spout with annular slider matched with, annular slider's inside wall is fixed with the inflation gasbag that the vertical section is ring annular structure, inflation gasbag's outside business turn over gas port department is fixed with the trachea, the tracheal other end extends to annular slider's the outside, and be connected with the charging connector of taking the check valve, the outside screwed connection of charging connector has sealed lid, can aerify inflation gasbag through the charging connector, make inflation gasbag inflate the back can extrude in the output shaft outside, and then when making the output shaft rotate, can drive the annular slider that inflation gasbag connects and rotate on closing plate a or closing plate b, and then can reach sealed effect when, still do not influence the operation of output shaft.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the harmonic reducer flexible gear sealing structure, the expansion sealing mechanism is utilized, inflation can be carried out through the inflation nozzle by means of external inflation equipment, the expansion airbag is inflated and extruded on the outer side of the output shaft, and the annular slider is matched with the action of the annular slider, so that when the output shaft rotates, the annular slider connected with the expansion airbag can be driven to rotate on the sealing plate a or the sealing plate b, the sealing effect is good, and meanwhile, the operation of the output shaft is not influenced;

2. through a plurality of screws a or a plurality of screws b of pine unloading, and then conveniently dismantle the change that gets off to sealing plate a or sealing plate b.

Drawings

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

fig. 2 is a schematic rear view of the present invention;

FIG. 3 is a structural schematic view of the utility model after the whole body is disassembled and viewed from the front;

FIG. 4 is a schematic view of the overall disassembled rear view structure of the present invention;

fig. 5 is a schematic view of the split plane structure of the annular slider of the present invention.

In the figure: 1. a flexible gear; 2. a rigid wheel; 3. a wave generator; 4. a sealing plate a; 41. a screw a; 5. a sealing plate b; 51. a screw b; 6. an expansion seal mechanism; 601. an annular slider; 602. inflating the balloon; 603. an air tube; 604. an air charging nozzle.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a harmonic reducer ware flexbile gear seal structure, including flexbile gear 1, rigid gear 2, wave generator 3, the inside cover of flexbile gear 1 is equipped with wave generator 3, rigid gear 2 is equipped with in the outside external tooth portion cover of flexbile gear 1, the inboard of rigid gear 2 is equipped with the internal tooth portion with external tooth portion complex, rigid gear 2 side surface is dismantled through a plurality of screws a41 and is connected with closing plate a4, one side surface that flexbile gear 1 kept away from rigid gear 2 can be dismantled through a plurality of screws b51 and is connected with closing plate b5, be equipped with the sealing washer on closing plate a4 and the closing plate b5 relative side wall thereof respectively, the sealing washer on closing plate a4 is bigger than the sealing washer diameter on the sealed closing plate b5, all set up on closing plate a4 with screw a41 matched with perforation a, rigid gear 2 side surface has all set up with screw a41 matched with screw a, all set up on closing plate b5 with screw b51 matched with perforation b, one side surface that flexbile gear 1 keeps away from rigid gear 2 has all set up with screw b matched with screw b51, through a plurality of screws a41, and then make a4 can dismantle the screw, and then dismantle, secondly, through a closing plate b can dismantle a plurality of the screw 5, can dismantle.

The sealing plate a4 and the sealing plate b5 are provided with an expansion sealing mechanism 6 at the shaft hole, the expansion sealing mechanism 6 comprises an annular sliding block 601 rotatably connected with the shaft hole on the sealing plate a4 or the sealing plate b5, two ends of the cross section of the annular sliding block 601 are respectively of a T-shaped structure and an inverted T-shaped structure, an annular sliding groove matched with the annular sliding block 601 is formed in the inner wall of the shaft hole, an expansion airbag 602 with a vertical section of an annular structure is fixed on the inner side wall of the annular sliding block 601, an air pipe 603 is fixed at the outer side air inlet and outlet of the expansion airbag 602, the other end of the air pipe 603 extends to the outer side of the annular sliding block 601 and is connected with an inflating nozzle 604 with a one-way valve, a sealing cover is spirally connected to the outer side of the inflating nozzle 604, the expansion airbag 602 can be inflated and expanded through the inflating nozzle 604, so that the expansion airbag 602 can be extruded to the outer side of the output shaft after being inflated, and further when the output shaft rotates, the annular sliding block 601 connected with the expansion airbag 602 can be driven to rotate on the sealing plate a4 or the sealing plate b5, and further the sealing effect can be achieved, and the operation of the output shaft is not affected.

This scheme, when using this harmonic speed reducer ware flexbile gear seal structure, aerify two charging connectors 604 department through external air charging equipment, and then can aerify two inflation airbags 602, and then make inflation airbags 602 inflate the extrusion in the outside of output shaft, and cooperation annular slider 601's effect, and then when making the output shaft rotate, can drive the annular slider 601 that inflation airbags 602 connects and rotate on closing plate a4 or closing plate b5, and then can reach sealed effectual while, still do not influence the operation of output shaft, secondly, unload a plurality of screws a41 or a plurality of screws b51 through the pine, and then the convenience is dismantled sealing plate a4 or closing plate b5 and is got off the change.

It is noted that, herein, relational terms such as first and second, and the like may be 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.

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

Claims (5)

1. The utility model provides a harmonic speed reducer ware flexbile gear seal structure, includes flexbile gear (1), rigid gear (2), wave generator (3), the inside cover of flexbile gear (1) is equipped with wave generator (3), and the outside external tooth portion cover of flexbile gear (1) is equipped with rigid gear (2), and the inboard of rigid gear (2) is equipped with and outer tooth portion complex internal tooth portion, its characterized in that: the flexible gear sealing device is characterized in that a sealing plate a (4) is detachably connected to one side surface of the rigid gear (2) through a plurality of screws a (41), a sealing plate b (5) is detachably connected to one side surface, away from the rigid gear (2), of the flexible gear (1) through a plurality of screws b (51), and expansion sealing mechanisms (6) are installed at shaft holes in the sealing plate a (4) and the sealing plate b (5).

2. The flexible gear sealing structure of the harmonic reducer according to claim 1, wherein: and a sealing ring is respectively arranged on one side wall of the sealing plate a (4) opposite to the side wall of the sealing plate b (5).

3. The flexible gear sealing structure of the harmonic reducer according to claim 1, wherein: all seted up on sealing plate a (4) with screw a (41) matched with perforation a, all seted up on rigid wheel (2) one side surface with screw a (41) matched with screw a, all seted up on sealing plate b (5) with screw b (51) matched with perforation b, one side surface that rigid wheel (2) was kept away from in flexbile gear (1) all seted up with screw b (51) matched with screw b.

4. The flexible gear sealing structure of the harmonic reducer according to claim 1, wherein: the expansion sealing mechanism (6) comprises an annular sliding block (601) which is rotatably connected with a shaft hole on the sealing plate a (4) or the sealing plate b (5), and two ends of the cross section of the annular sliding block (601) are respectively of a T-shaped structure and an inverted T-shaped structure.

5. The flexible gear sealing structure of the harmonic reducer according to claim 1, wherein: the inner wall of the shaft hole is provided with an annular sliding groove matched with the annular sliding block (601), the inner side wall of the annular sliding block (601) is fixedly provided with an expansion air bag (602) with a vertical section in a circular ring-shaped structure, an air pipe (603) is fixedly arranged at an air inlet and an air outlet of the outer side of the expansion air bag (602), the other end of the air pipe (603) extends to the outer side of the annular sliding block (601) and is connected with an inflating nozzle (604) with a one-way valve, and the outer side of the inflating nozzle (604) is spirally connected with a sealing cover.

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