CN205331199U

CN205331199U - Pivot with two transmission structure

Info

Publication number: CN205331199U
Application number: CN201521049029.5U
Authority: CN
Inventors: 房锦山
Original assignee: Chongqing Is With Good Electronic Science And Technology Co Ltd
Current assignee: Chongqing Is With Good Electronic Science And Technology Co Ltd
Priority date: 2015-12-15
Filing date: 2015-12-15
Publication date: 2016-06-22
Anticipated expiration: 2025-12-15

Abstract

The utility model discloses a pivot with two transmission structure, 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 slides and is provided with the movable rod, the movable rod includes constant diameter section and circle conic section, blend stop A has been linked firmly in the constant diameter section, 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 circle conic section overcomes first elastic component and second elastic component breaks away from with a plurality of transmission pearls mutually. The utility model discloses in, through the setting of first elastic component and second elastic component, can improve movable rod in activity intracavity axial displacement's stability, avoid circle conic section and constant diameter segment occurrence to rock.

Description

It is provided with the rotating shaft of double; two drive mechanism

Technical field

This utility model relates to machine field, specifically refers to be provided with the rotating shaft of double; two drive mechanism。

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 when suddenling change particularly in service load, rotating shaft is very 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, thering is provided a kind of rotating shaft being applicable to have more service load sudden change occasion, 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:

It is provided with the rotating shaft of double; two drive mechanism, including rotating shaft and the axle being coaxially disposed and being 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 is arranged 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, and its other end is inserted in holding tank and has certain interval between this end outer wall and holding tank inwall；

The movable chamber of hollow it is provided with in interior axle, the axial wall of interior axle is provided with two openings being oppositely arranged connected with movable chamber 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 slides and is provided with motion bar, isometrical section and diameter that motion bar includes near inputting section progressively diminish towards transmission segment direction and may act on the conical section of transmission pearl, the outer wall of isometrical section is fixed with two blend stop A being each passed through two openings, isometrical section is connected in the cavity wall of movable chamber by the first elastic component, and axially arranged between isometrical section and the cavity wall in movable chamber have flat key, conical section is connected in the cavity wall of movable chamber by the second elastic component, under the effect of the first elastic component and the second elastic component, conical section acts on multiple transmission pearl, 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, conical section overcomes the effect of the first elastic component and the second elastic component and multiple transmission pearls to be separated。

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。During normal operation, input section drives linkage section, transmission segment and with input section connect interior axle together with rotate, and be arranged at blend stop A and the blend stop B being arranged on linkage section on motion bar also because of together with rotate and keep the state contacted, so, conical section then overcomes the effect of the first elastic component and the second elastic component and multiple transmission pearls to be separated, due to the effect without conical section, 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 and transmission segment are not joined directly together, so can reduce the load of internal axle。During normal operation, the power of micro machine is then by inputting section, linkage section and transmission segment output。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, conical section then can reset rapidly under the supporting role of the first elastic component and the second 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 inputting section, interior axle and transmission segment output, so, the situation that power output is interrupted completely can be avoided to occur。

Wherein, by the setting of isometrical section and flat key, stability and the promptness of synchronous axial system between motion bar and interior axle can be improved, it is to avoid relative motion occurs between the two to reduce the transmission quality of transmission pearl, simultaneously, it is possible to avoid damaging blend stop A。By the setting of the first elastic component and the second elastic component, the stability that motion bar moves axially can be improved in movable intracavity, it is to avoid rocking occur in conical section and isometrical section。By the setting of conical section, when can be easy to motion bar according to normal operating conditions, gap length between transmission pearl top and holding tank inwall automatically controls the size of axial displacement, so, both can improve reliability of operation；Still prevent the damage causing holding tank and motion bar。

For improving the transmission quality of multiple transmission pearl, 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。So arrange, 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。

Further, described flat key is fixed on the inwall of described interior axle, and described motion bar is provided with the chute that can match with flat key。By the setting of flat key Yu chute, both motion bar can be carried out circumference spacing, it is to avoid it is with interior axle generation relative motion, it is ensured that motion bar can with interior axle synchronous axial system；Motion bar can be carried out axial limiting in the movement of movable intracavity again, so can reduce the damage to shelves bar A。

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 when micro machine normal operation, the load of axle in reducing；Again can when linkage section ruptures, by the power transmission of interior axle to transmission segment。

3, by the setting of conical section, when can be easy to motion bar according to normal operating conditions, gap length between transmission pearl top and holding tank inwall automatically controls the size of axial displacement, so, both can improve reliability of operation；Still prevent the damage causing holding tank and motion bar。

4, by the setting of the first elastic component and the second elastic component, the stability that motion bar moves axially can be improved in movable intracavity, it is to avoid rocking occur in conical section and isometrical section。

5, by the setting of flat key Yu chute, both motion bar can have been carried out circumference spacing, it is to avoid it is with interior axle generation relative motion, it is ensured that motion bar can with interior axle synchronous axial system；Motion bar can be carried out axial limiting in the movement of movable intracavity again, so can reduce the damage to shelves bar A。

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 rotating shaft being provided with double; two drive mechanism 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 is the rotating shaft the being provided with double; two drive mechanism described in the utility model structural representation when shelves bar A contacts with shelves bar B；

Fig. 5 is the rotating shaft the being provided with double; two drive mechanism 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, the first elastic component, the 207, second elastic component, 208, flat key, 209, chute, 3, motion bar, 301, blend stop A, 302, blend stop B, 303, isometrical section, 304, conical section。

Detailed description of the invention

For making the purpose of this utility model, technical scheme and advantage clearly understand, 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

As shown in Figures 1 to 5, it is provided with the rotating shaft of double; two drive mechanism, including rotating shaft 1 and the axle 2 being coaxially disposed and being 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 is arranged 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, and its other end is inserted in holding tank 104 and has certain interval between this end outer wall and holding tank 104 inwall；

The movable chamber 201 of hollow it is provided with in interior axle 2, the axial wall of interior axle 2 is provided with two openings 202 being oppositely arranged connected with movable chamber 201 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, slide in movable chamber 201 and be provided with motion bar 3, isometrical section 303 and diameter that motion bar 3 includes near inputting section 101 progressively diminish towards transmission segment 103 direction and may act on the conical section 304 of transmission pearl 205, the outer wall of isometrical section 303 is fixed with two blend stop A301 being each passed through two openings 202, it is connected in the cavity wall of movable chamber 201 by the first elastic component 206 for isometrical section 303, and axially arranged between isometrical section 303 and the cavity wall in movable chamber 201 have flat key 208, conical section 304 is connected in the cavity wall of movable chamber 201 by the second elastic component 207, under the effect of the first elastic component 206 and the second elastic component 207, conical section 304 acts on multiple transmission pearl 205, 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, conical section 304 overcomes the effect of the first elastic component 206 and the second elastic component 207 and multiple transmission pearls 205 to be separated。

During the present embodiment application, input section 101 is connected with the clutch end of micro machine, and transmission segment 103 is connected with equipment to be driven。During normal operation, input section 101 drives linkage section 102, transmission segment 103 and with input section 101 connect interior axle 2 together with rotate, and be arranged at blend stop A301 and the blend stop B302 being arranged on linkage section 102 on motion bar 3 also because of together with rotate and keep the state contacted, so, conical section 304 then overcomes the effect of the first elastic component 206 and the second elastic component 207 and multiple transmission pearls 205 to be separated, due to the effect without conical section 304, 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 and transmission segment 103 are not joined directly together, so can reduce the load of internal axle 2。During normal operation, the power of micro machine is then exported by input section 101, linkage section 102 and transmission segment 103。And 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, conical section 304 then can reset rapidly under the supporting role of the first elastic component 206 and the second elastic component 207, motion bar 3 is made then to enter 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 inputting section 101, interior axle 2 and transmission segment 103 export, so, the situation that power output is interrupted completely can be avoided to occur。

Wherein, by the setting of isometrical section 303 and flat key 208, stability and the promptness of synchronous axial system between motion bar 3 and interior axle 2 can be improved, it is to avoid relative motion occurs between the two to reduce the transmission quality of transmission pearl 205, simultaneously, it is possible to avoid damaging blend stop A301。By the setting of the first elastic component 206 and the second elastic component 207, the stability that motion bar 3 moves axially in movable chamber 201 can be improved, it is to avoid rocking occur in conical section 304 and isometrical section 303。By the setting of conical section 304, when can be easy to motion bar 3 according to normal operating conditions, gap length between transmission pearl 205 top and holding tank 104 inwall automatically controls the size of axial displacement, so, both can improve reliability of operation；Still prevent the damage causing holding tank 104 and motion bar 3。

For improving the transmission quality of multiple transmission pearl 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。So arrange, 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。

Preferably, described flat key 208 is fixed on the inwall of described interior axle 2, and described motion bar 3 is provided with the chute 209 that can match with flat key 208。By the setting of flat key 208 with chute 209, both motion bar 3 can be carried out circumference spacing, it is to avoid relative motion occurs for it and interior axle 2, so can ensure that motion bar 3 can with interior axle 2 synchronous axial system；The motion bar 3 movement in movable chamber 201 can be carried out axial limiting again, so can reduce the damage to shelves bar A301。

Above content is further description this utility model made in conjunction with 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, without departing from other embodiments drawn under the technical solution of the utility model, should be included in protection domain of the present utility model。

Claims

1. it is provided with the rotating shaft of double, two drive mechanism, 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 is arranged 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), its other end is inserted in holding tank (104) and has certain interval between this end outer wall and holding tank (104) inwall；

The movable chamber (201) of hollow it is provided with in interior axle (2), the axial wall of interior axle (2) is provided with two openings being oppositely arranged (202) connected with movable chamber (201) and installing port (203) that multiple and movable chamber (201) connects and be respectively positioned 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), slide in movable chamber (201) and be provided with motion bar (3), motion bar (3) includes progressively diminishing towards transmission segment (103) direction near isometrical section (303) of input section (101) and diameter and may act on the conical section (304) of transmission pearl (205), the outer wall of isometrical section (303) is fixed with two blend stop A (301) being each passed through two openings (202), isometrical section (303) are connected in movable chamber (201) cavity wall by the first elastic component (206), and axially arranged between the cavity wall in isometrical section (303) and movable chamber (201) have flat key (208), conical section (304) is connected in movable chamber (201) cavity wall by the second elastic component (207), under the effect of the first elastic component (206) and the second elastic component (207), conical section (304) acts on multiple transmission pearl (205), 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, conical section (304) overcomes the effect of the first elastic component (206) and the second elastic component (207) and multiple transmission pearls (205) to be separated。

2. the rotating shaft being provided with double; two drive mechanism 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. the rotating shaft being provided with double; two drive mechanism 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. the rotating shaft being provided with double; two drive mechanism 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)。

5. the rotating shaft being provided with double; two drive mechanism according to any one in Claims 1 to 4, it is characterized in that: described flat key (208) is fixed on the inwall of described interior axle (2), and described motion bar (3) is provided with the chute (209) that can match with flat key (208)。