CN205429963U - A transmission structure for micromotor - Google Patents

Abstract

The utility model discloses a transmission structure for micromotor, including pivot and interior axle, the pivot includes the linkage segment, input section and transmission section, the transmission section is provided with the holding tank, the one end of interior axle links to each other with the input section, its other end is put into in the holding tank, be provided with movable chamber in the interior axle, be provided with opening and installing port on the axial wall of interior axle, the installing port is provided with the transmission pearl through the elasticity rope, the activity intracavity is connected with the movable rod that can act on the transmission pearl through the elastic component, it passes two open -ended blend stop A respectively to have linked firmly two on the outer wall of movable rod, the inner wall of linkage segment be provided with with blend stop A complex blend stop B, when blend stop A contacts with blend stop B, the effect that the elastic component is overcome to the movable rod breaks away from the region that a plurality of transmission pearls surrounded. The utility model discloses axle and two sets of moment of torsion transmission parts of linkage segment in setting up, by interior axle transmission moment of torsion, the condition of avoiding power take off to suspend completely took place after the linkage segment fracture is become invalid.

Description

Drive mechanism for micro machine

Technical field

This utility model relates to machine field, specifically refers to the drive mechanism for micro machine.

Background technology

Micro machine is a kind of conventional PTO, and its power is exported by rotating shaft.In the course of the work, rotating shaft can bear high torque, and especially when service load suddenlys change, rotating shaft is easily ruptured.After rotating shaft is ruptured, power output is interrupted completely, it is impossible to work on.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of drive mechanism being applicable to have more service load sudden change occasion is provided, it can provide two kinds of drive mechanisms, after a kind of drive mechanism lost efficacy wherein, another kind of drive mechanism work, it is to avoid the situation that power output is interrupted completely occurs.

The purpose of this utility model is achieved through the following technical solutions:

nullDrive mechanism for micro machine，Including rotating shaft and the axle that is coaxially disposed and is positioned at rotating shaft with rotating shaft，Rotating shaft includes linkage section and the input section being connected respectively and the transmission segment that hollow arranges with linkage section two ends，Transmission segment is provided with holding tank in the end near linkage section，One end of interior axle is connected with input section，In its other end inserts holding tank and between this end outer wall and holding tank inwall, there is certain interval，The movable chamber of hollow it is provided with in interior axle，It is provided with two openings being oppositely arranged connected with movable chamber on the axial wall of interior axle and multiple and movable chamber connects and be respectively positioned on the installing port in holding tank area encompassed，Installing port is provided with transmission pearl by elastic threads，Transmission pearl has certain interval under the effect of elastic threads and between the inwall of holding tank，Movable intracavity is connected by elastic component the motion bar that may act on transmission pearl，Under the effect of elastic component，Motion bar can insert multiple transmission pearl area encompassed，Two blend stop A being each passed through two openings it are fixed with on the outer wall of motion bar，The inwall of linkage section is provided with the blend stop B coordinated with blend stop A，When blend stop A contacts with blend stop B，Motion bar overcomes the effect of elastic component to depart from multiple transmission pearl areas encompassed.

During this utility model application, input section is connected with the clutch end of micro machine, and transmission segment is connected with equipment to be driven.When normally working, input section drives linkage section, transmission segment and rotating together with the input interior axle that is connected of section, and the blend stop A being arranged on motion bar and the blend stop B being arranged on linkage section also because of together with rotate and keep the state contacted, so, motion bar then compression elastic piece and depart from multiple transmission pearl area encompassed, effect due to non-activity bar, multiple transmission pearls are all positioned at installing port under the supporting role of deadweight and elastic threads and the inwall with holding tank maintains certain interval, thus interior axle is not joined directly together with transmission segment, so can reduce the load of internal axle.During normal work, the power of micro machine is then to be exported by input section, linkage section and transmission segment.And after linkage section ruptures, interior axle then relatively rotates with linkage section, blend stop A then can relatively rotate with blend stop B and depart from blend stop B, motion bar then can reset rapidly under the supporting role of elastic component, motion bar is made then to enter in multiple transmission pearl area encompassed, transmission pearl then can overcome the supporting role of elastic threads all to extending out shifting until contacting with the inwall of holding tank, at this moment, the top of transmission pearl contacts with the inwall of holding tank, its bottom contacts with the outer wall of motion bar, so, the power of interior axle then can be passed to transmission segment by motion bar and drive transmission segment to rotate together with interior axle by transmission pearl, specifically, the power of micro machine is then by input section, interior axle and transmission segment output, so, the situation that power output can be avoided to interrupt completely occurs.

For improving the transmission quality of multiple transmission pearls, further, multiple described installing ports are positioned in the same circumferential line of described axle, and are uniformly distributed in this circumferential line.

For realizing the elastic threads connection to transmission pearl, and can guarantee that transmission pearl realizes effective gearing, further, transmission pearl is arranged in described installing port by described elastic threads by the two ends and axle center running through described transmission pearl.

Further, the width of the described blend stop B width more than described blend stop A.It is arranged such, when interior axle relatively rotates with linkage section, blend stop A can be easy to and depart from blend stop B, meanwhile, also allow for blend stop A moving axially in opening.

This utility model has the advantages that

1, this utility model arranges interior axle and linkage section two overlaps torque transfer member, is transmitted moment of torsion by interior axle after linkage section fracture failure, it is to avoid the situation that power output is interrupted completely occurs.

2, coordinated with departing from by contacting between blend stop A with blend stop B, may act on motion bar so that it is move axially to control transmission pearl and the position in installing port at movable intracavity, such that can be when micro machine normally works, the load of axle in reducing；Again can be when linkage section rupture, by the power transmission of interior axle to transmission segment.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the part of the application, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:

Fig. 1 is the structural representation of one specific embodiment of drive mechanism for micro machine described in the utility model；

Fig. 2 is the sectional view shown in Fig. 1 along A-A direction；

Fig. 3 is the sectional view shown in Fig. 1 along B-B direction；

Fig. 4 drive mechanism for micro machine described in the utility model structural representation when shelves bar A contacts with shelves bar B；

Fig. 5 drive mechanism for micro machine described in the utility model structural representation when shelves bar A and shelves bar B departs from.

Labelling and corresponding parts title in accompanying drawing: 1, rotating shaft, 101, input section, 102, linkage section, 103, transmission segment, 104, holding tank, 2, interior axle, 201, movable chamber, 202, opening, 203, installing port, 204, elastic threads, 205, transmission pearl, 206, elastic component, 3, motion bar, 301, blend stop A, 302, blend stop B.

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.

Embodiment 1

nullAs Fig. 1 to Fig. 5 shows，Drive mechanism for micro machine，Including rotating shaft 1 and the axle 2 that is coaxially disposed and is positioned at rotating shaft 1 with rotating shaft 1，Rotating shaft 1 includes linkage section 102 and the input section 101 being connected respectively and the transmission segment 103 that hollow arranges with linkage section 102 two ends，Transmission segment 103 is provided with holding tank 104 in the end near linkage section 102，One end of interior axle 2 is connected with input section 101，In its other end inserts holding tank 104 and between this end outer wall and holding tank 104 inwall, there is certain interval，The movable chamber 201 of hollow it is provided with in interior axle 2，It is provided with two openings 202 being oppositely arranged connected with movable chamber 201 on the axial wall of interior axle 2 and multiple and movable chamber 201 connects and be respectively positioned on the installing port 203 in holding tank 104 area encompassed，Installing port 203 is provided with transmission pearl 205 by elastic threads 204，Transmission pearl 205 has certain interval under the effect of elastic threads 204 and between the inwall of holding tank 104，Connected by elastic component 206 in movable chamber 201 and have the motion bar 3 that may act on transmission pearl 205，Under the effect of elastic component 206，Motion bar 3 can insert multiple transmission pearl 205 area encompassed，Two blend stop A301 being each passed through two openings 202 it are fixed with on the outer wall of motion bar 3，The inwall of linkage section 102 is provided with the blend stop B302 coordinated with blend stop A301，When blend stop A301 contacts with blend stop B302，Motion bar 3 overcomes the effect of elastic component to depart from multiple transmission pearl 205 areas encompassed.

During this utility model application, input section 101 is connected with the clutch end of micro machine, and transmission segment 103 is connected with equipment to be driven.When normally working, input section 101 drives linkage section 102, transmission segment 103 and rotating together with the input interior axle 2 that is connected of section 101, and the blend stop A301 being arranged on the motion bar 3 and blend stop B302 being arranged on linkage section 102 also because of together with rotate and keep the state contacted, so, motion bar 3 then compression elastic piece 206 and depart from multiple transmission pearl 205 area encompassed, effect due to non-activity bar 3, multiple transmission pearls 205 are all positioned at installing port 203 under the supporting role of deadweight and elastic threads 204 and the inwall with holding tank 104 maintains certain interval, thus interior axle 2 is not joined directly together with transmission segment 103, so can reduce the load of internal axle 2.During normal work, the power of micro machine is then to be exported by input section 101, linkage section 102 and transmission segment 103.nullAnd after linkage section 102 ruptures，Interior axle 2 then relatively rotates with linkage section 102，Blend stop A301 then can relatively rotate with blend stop B302 and depart from blend stop B302，Motion bar 3 then can reset rapidly under the supporting role of elastic component 206，Motion bar 3 is then entered in multiple transmission pearl 205 area encompassed，Transmission pearl 205 then can overcome the supporting role of elastic threads 204 all to extending out shifting until contacting with the inwall of holding tank 104，At this moment，The top of transmission pearl 205 contacts with the inwall of holding tank 104，Its bottom contacts with the outer wall of motion bar 3，So，The power of interior axle 2 then can be passed to transmission segment 103 by motion bar 3 and drive transmission segment 103 to rotate together with interior axle 2 by transmission pearl 205，Specifically，The power of micro machine is then by input section 101、Interior axle 2 and transmission segment 103 export，So，The situation that power output can be avoided to interrupt completely occurs.

For improving the transmission quality of multiple transmission pearls 205, it is preferable that multiple described installing ports 203 are positioned in the described same circumferential line of axle 2, and are uniformly distributed in this circumferential line.

For realizing the elastic threads 204 connection to transmission pearl 205, and can guarantee that transmission pearl 205 realizes effective gearing, it is preferable that transmission pearl 205 is arranged in described installing port 203 by described elastic threads 204 by the two ends and axle center running through described transmission pearl 205.

Preferably, the width of the described blend stop B302 width more than described blend stop A301.It is arranged such, when interior axle 2 relatively rotates with linkage section 102, blend stop A301 can be easy to and depart from blend stop B302, meanwhile, also allow for blend stop A301 moving axially in opening 202.

Above content is to combine the further description that this utility model is made by concrete preferred implementation, it is impossible to assert that detailed description of the invention of the present utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field, other embodiments drawn under without departing from the technical solution of the utility model, should be included in protection domain of the present utility model.

Claims (4)

1. null1. for the drive mechanism of micro machine，It is characterized in that: include rotating shaft (1) and be coaxially disposed and be positioned at the axle (2) of rotating shaft (1) with rotating shaft (1)，Rotating shaft (1) includes linkage section (102) and the input section (101) being connected respectively and the transmission segment (103) that hollow arranges with linkage section (102) two ends，Transmission segment (103) is provided with holding tank (104) in the end near linkage section (102)，One end of interior axle (2) is connected with input section (101)，In its other end inserts holding tank (104) and between this end outer wall and holding tank (104) inwall, there is certain interval，The movable chamber (201) of hollow it is provided with in interior axle (2)，Two openings being oppositely arranged (202) connected with movable chamber (201) it are provided with and installing port (203) that multiple and movable chamber (201) connects and be respectively positioned in holding tank (104) area encompassed on the axial wall of interior axle (2)，Installing port (203) is provided with transmission pearl (205) by elastic threads (204)，Transmission pearl (205) has certain interval under the effect of elastic threads (204) and between the inwall of holding tank (104)，Connected by elastic component (206) in movable chamber (201) and have the motion bar (3) that may act on transmission pearl (205)，Under the effect of elastic component (206)，Motion bar (3) can insert multiple transmission pearl (205) area encompassed，Two blend stop A (301) being each passed through two openings (202) it are fixed with on the outer wall of motion bar (3)，The inwall of linkage section (102) is provided with the blend stop B (302) coordinated with blend stop A (301)，When blend stop A (301) and blend stop B (302) contacts，Motion bar (3) overcomes the effect of elastic component to depart from multiple transmission pearl (205) areas encompassed.
2. Drive mechanism for micro machine the most according to claim 1, it is characterised in that: multiple described installing ports (203) are positioned in described axle (2) same circumferential line, and are uniformly distributed in this circumferential line.
3. Drive mechanism for micro machine the most according to claim 1, it is characterised in that: transmission pearl (205) is arranged in described installing port (203) by described elastic threads (204) by the two ends and axle center running through described transmission pearl (205).
4. Drive mechanism for micro machine the most according to claim 1, it is characterised in that: the width of described blend stop B (302) is more than the width of described blend stop A (301).