CN201391586Y - Transmission device for self-locking when mainshaft rotates positively and reversely and driven shaft rotates actively - Google Patents
Transmission device for self-locking when mainshaft rotates positively and reversely and driven shaft rotates actively Download PDFInfo
- Publication number
- CN201391586Y CN201391586Y CN200920064061U CN200920064061U CN201391586Y CN 201391586 Y CN201391586 Y CN 201391586Y CN 200920064061 U CN200920064061 U CN 200920064061U CN 200920064061 U CN200920064061 U CN 200920064061U CN 201391586 Y CN201391586 Y CN 201391586Y
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- CN
- China
- Prior art keywords
- driving shaft
- locking
- ratchet
- driven axle
- wedge cams
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A transmission device for self-locking when a mainshaft rotates positively and reversely and a driven shaft rotates actively comprises a shell, a driving shaft, a driven shaft, a locking turntable, wherein one end of the driving shaft is provided with at least two grooves; one end of the driven shaft is provided with a bolt that is inserted in the groove; the locking turntable is sheathed on the driving shaft; the end surface of the locking turntable is hinged by at least two pairs of wedge-shaped cams; the same pair of wedge-shaped cams are arranged back to back and connected with each other by a connecting rod; and a pulling rod at one end of the cam is inserted in the groove of the end surface of the driving shaft and arranged at two sides of the bolt of the driven shaft. The transmission device has simple and reasonable structure, easy machining and manufacturing, and stable, safe and reliable operation, can realize industrialized production, is especially suitable for the transmission situations that the driving shaft can freely rotates positively and reversely and the driven shaft can not actively rotate positively or reversely.
Description
Technical field
The utility model relates to a kind of transmission device, but the transmission device of self-locking when being meant a kind of driving shaft clockwise and anticlockwise, driven axle active rotation especially.
Technical background
In the driving mechanism that much rotatablely moves, require driving shaft forward and reverse rotation to give driven axle, and the reaction force of driven axle can not anti-pass come to drive the driving shaft rotation with transmission of power; When the reaction force of driven axle during greater than the driving shaft active force, driven axle might drive the driving shaft counter-rotating, and this will cause whole system to lose efficacy, even cause serious security incident.Traditional solution is to adorn a break on driving shaft, prevent that driven axle from initiatively reversing and drive driving shaft counter-rotating, but its structure is quite complicated; Needing a whole set of mechanical, electrical affiliated facility and system could realize.For example, the lifting roller of lifting transport airplane, during lifting, driving shaft is passed to roller with power, during decline, because the effect of weight self gravitation, might drive roller and initiatively reverse, and then drive the driving shaft counter-rotating, present solution is a break to be set on driving shaft and to be equipped with a whole set of Mechatronic control system, controlled decline with the control roller, but because the structure more complicated of Mechatronic control system and break self, in the using process, rate of fault is than higher, cause equipment in use, have certain potential safety hazard.
The model utility content
The transmission device of self-locking when a kind of simple and reasonable, driving shaft clockwise and anticlockwise that manufacturing is easy, stable, safe and reliable, driven axle active rotation are provided but the purpose of this utility model is to overcome the deficiency of prior art.
The utility model is to adopt following proposal to realize: but the transmission device of self-locking when a kind of driving shaft clockwise and anticlockwise, driven axle active rotation comprises: housing, driving shaft, driven axle, locking rotating disk;
The end face upper edge driving shaft of described driving shaft one end radially is evenly equipped with 2 grooves at least;
One end of described driven axle is provided with at least 2 latches that are inserted in the described groove;
Described driving shaft, driven axle all by Bearing Installation in the axis hole of described housing;
Described locking rotating disk is a hollow cylinder, and the bearing that the axis hole with described housing is complementary is installed on its excircle, inner ring be sleeved on described driving shaft and driven axle connecting end the driving shaft end and can and driving shaft between rotate mutually;
Be hinged with the identical at least 2 pairs of wedge cams of shape by hinge on the end face of described locking rotating disk, one end of described wedge cams is a cam, the other end is a driving lever, described each wedge cams is installed back-to-back, the cam of one end can contact with the inwall of described housing axis hole, and the driving lever of the other end is inserted in the space between the latch of the groove of described driving shaft end face and described passive axle head respectively and is in described latch both sides;
Described each to being provided with a connecting rod between the wedge cams, described connecting rod one end is hinged on the cam of wedge cams one end, the other end is hinged on the driving lever of another wedge cams, and the hinging shaft between described wedge cams and the described locking rotating disk end face is between the articulating point of described connecting rod and described two wedge cams.
In the utility model: be provided with ring locking price fixing in the described housing axis hole, the excircle of described locking price fixing is fixedlyed connected with described housing axis hole, and its inner circumference can contact with the cam of described wedge cams one end.
Further improvement of the utility model is: described locking price fixing inner peripheral surface is divided into left and right two sections vertically, is respectively equipped with left-handed, dextrorotation ratchet on described left and right two sections inner peripheral surface;
Be hinged with the identical at least 2 pairs of ratchets of shape by hinge on the end face of described locking rotating disk, one end of described ratchet is half ratchet, the other end is a driving lever, described each ratchet is installed face-to-face, half ratchet of one end can be meshed with described left-handed, the dextrorotation ratchet of described locking price fixing inner peripheral surface setting, and the driving lever of the other end is inserted in the space between the latch of the groove of described driving shaft end face and described passive axle head respectively and is in described latch both sides.
In the utility model, described half ratchet is meant that the thickness of ratchet accounts for half of described ratchet integral thickness.
Working principle of the present utility model is sketched in following: suppose to be between wedge cams or ratchet and the locking price fixing locking state, when driving shaft active forward or reverse, the contoured surface of described driving shaft end face groove will be stirred a driving lever in every pair of wedge cams or the ratchet, make described wedge cams or ratchet wedge cams or ratchet be cut with scissors the hinge rotation that is contained on the described locking rotating disk around described, the sense of rotation of described wedge cams or ratchet is opposite with the active rotation direction of described driving shaft, simultaneously, described wedge cams or ratchet drive with another wedge cams in a pair of wedge cams or the ratchet or ratchet by connecting rod and do and driving shaft rotation in the same way around its hinge, utilize the different of wedge cams or ratchet contoured surface and hinge axle center radius, realization is with the contact separation of wedge cams or ratchet and described locking price fixing inner peripheral surface, thereby make driving shaft, wedge cams or ratchet, the locking price fixing is separated from each other, make the power of driving shaft can directly be passed to driven axle, realize the accessible transmission of power.
Between wedge cams or ratchet and locking price fixing, be in separated state, driven axle initiatively just, during counter-rotating, the latch of driven axle end will be stirred a driving lever in every pair of wedge cams or the ratchet, make described driving lever wedge cams or ratchet be cut with scissors the hinge rotation that is contained on the described locking rotating disk around described, the sense of rotation of described driving lever is opposite with the active rotation direction of described driven axle, simultaneously, described driving lever drives with another wedge cams in a pair of wedge cams or the ratchet or ratchet by connecting rod and does and driven axle rotation in the same way around its hinge, utilize the different of wedge cams or ratchet contoured surface and hinge axle center radius, wedge cams or ratchet and described locking price fixing inner peripheral surface formation wedge-like are contacted or the engagement of ratchet ratchet, thereby make driven axle, wedge cams or ratchet and locking price fixing form an integral body, make the power of driven axle can not be passed to driving shaft, the purpose of self-locking when realizing the driven axle active rotation; No matter be how turning to of driven axle, always the wedge cams of a direction is arranged or ratchet contacts with described locking price fixing inner peripheral surface wedge-like or ratchet ratchet engagement is locked with it, the purpose of self-locking when realizing the driven axle active rotation.
The utility model is owing to adopt said structure, and the clog-free driven axle that is passed to of power then can be realized self-locking during the driven axle active rotation in the time of can guaranteeing driving shaft active clockwise and anticlockwise, improves Security, the reliability of driving mechanism operation; The utility model is simple and reasonable, manufacturing is easy, stable, safe and reliable, can realize industrialized production, being particularly suitable for using can positive and negative transhipment freely at driving shaft, the transmission occasion of forward and reverse rotation that driven shaft can not be initiatively.
Description of drawings
Accompanying drawing 1 is a kind of embodiment's of the utility model a main sectional view.
Accompanying drawing 2 is the A-A sectional view of accompanying drawing 1.
Accompanying drawing 3 is the another kind of embodiment's of the utility model a main sectional view.
Accompanying drawing 4 is the B-B sectional view of accompanying drawing 3.
Accompanying drawing 5 is the plan view of parts 4 in the accompanying drawing 3.
Accompanying drawing 6 is that the C of accompanying drawing 5 is to view.
In the accompanying drawing 1,2,3,4: the 1---housing, the 2---driven axle, the 5---connecting rod, 8---locks price fixing, the 9---wedge cams, the 10---hinge, the 11---latch, the 12---bearing, 13---locks rotating disk, 15---driving shaft.
Accompanying drawing 3,4,5,6, in, 4---ratchet, 6---half ratchet.
Embodiment
Embodiment of the present utility model describes in detail below in conjunction with accompanying drawing.
Embodiment 1
Referring to accompanying drawing 1,2, but the transmission device of self-locking when a kind of driving shaft clockwise and anticlockwise, driven axle active rotation comprises: housing 1, driving shaft 15, driven axle 2, locking rotating disk 13;
End face upper edge driving shaft 15 radial equipartitions of described driving shaft 15 1 ends have 3 grooves 7;
One end of described driven axle 2 is provided with 3 latches 11 that are inserted in the described groove 7;
Described driving shaft 15, driven axle 2 all by Bearing Installation in the axis hole of described housing 1;
Described locking rotating disk 13 is a hollow cylinder, and the bearing 12 that the axis hole with described housing 1 is complementary is installed on its excircle, inner ring be sleeved on described driving shaft 15 and driven axle 2 connecting ends driving shaft 15 ends and can and driving shaft 15 between rotate mutually;
Be hinged with the identical at least 2 pairs of wedge cams 9 of shape by hinge 10 on the end face of described locking rotating disk 13, one end of described wedge cams 9 is a cam, the other end is a driving lever, described each wedge cams 9 is installed back-to-back, the cam of one end can contact with the inwall of described housing 1 axis hole, and the driving lever of the other end is inserted in the space between the latch 11 of the groove of described driving shaft 15 end faces and described driven axle 2 ends respectively and is in described latch 11 both sides;
Described each to being provided with a connecting rod 5 between the wedge cams 9, described connecting rod 5 one ends are hinged on the cam of wedge cams 9 one ends, the other end is hinged on the driving lever of another wedge cams 9, and the hinge 10 between described wedge cams 9 and described locking rotating disk 13 end faces is between the articulating point 16,17 of described connecting rod 5 and described two wedge cams 9.
In the utility model: be provided with ring locking price fixing 8 in described housing 1 axis hole, the excircle of described locking price fixing 8 is fixedlyed connected with described housing 1 axis hole, and its inner circumference can contact with the cam of described wedge cams 9 one ends.
Embodiment 2
Referring to accompanying drawing 3,4,5,6, but the transmission device of self-locking when a kind of driving shaft clockwise and anticlockwise, driven axle active rotation, be that locking price fixing 8 inner peripheral surfaces described in the embodiment 1 are divided into left and right two sections vertically, on described left and right two sections inner peripheral surface, be respectively equipped with left-handed, dextrorotation ratchet;
Be hinged with the identical at least 2 pairs of ratchets 4 of shape by hinge 10 on the end face of described locking rotating disk 8, one end of described ratchet 4 is half ratchet 6, the other end is a driving lever, described each ratchet 4 is installed face-to-face, half ratchet 6 of one end can be meshed with described left-handed, the dextrorotation ratchet of described locking price fixing 8 inner peripheral surface settings, and the driving lever of the other end is inserted in the space between the latch 11 of the groove of described driving shaft 15 end faces and described driven axle 2 ends respectively and is in described latch 11 both sides; Described half ratchet 6 is meant that the thickness of ratchet accounts for half of described ratchet 4 integral thickness.
Claims (4)
1, but the transmission device of self-locking when a kind of driving shaft clockwise and anticlockwise, driven axle active rotation comprises: housing, driving shaft, driven axle, locking rotating disk; It is characterized in that:
The end face upper edge driving shaft of described driving shaft one end radially is evenly equipped with 2 grooves at least;
One end of described driven axle is provided with at least 2 latches that are inserted in the described groove;
Described driving shaft, driven axle all by Bearing Installation in the axis hole of described housing;
Described locking rotating disk is a hollow cylinder, and the bearing that the axis hole with described housing is complementary is installed on its excircle, inner ring be sleeved on described driving shaft and driven axle connecting end the driving shaft end and can and driving shaft between rotate mutually;
Be hinged with the identical at least 2 pairs of wedge cams of shape by hinge on the end face of described locking rotating disk, one end of described wedge cams is a cam, the other end is a driving lever, described each wedge cams is installed back-to-back, the cam of one end can contact with the inwall of described housing axis hole, and the driving lever of the other end is inserted in the space between the latch of the groove of described driving shaft end face and described passive axle head respectively and is in described latch both sides;
Described each to being provided with a connecting rod between the wedge cams, described connecting rod one end is hinged on the cam of wedge cams one end, the other end is hinged on the driving lever of another wedge cams, and the hinging shaft between described wedge cams and the described locking rotating disk end face is between the articulating point of described connecting rod and described two wedge cams.
But 2, the transmission device of self-locking when a kind of driving shaft clockwise and anticlockwise according to claim 1, driven axle active rotation, it is characterized in that: be provided with ring locking price fixing in the described housing axis hole, the excircle of described locking price fixing is fixedlyed connected with described housing axis hole, and its inner circumference can contact with the cam of described wedge cams one end.
But 3, the transmission device of self-locking when a kind of driving shaft clockwise and anticlockwise according to claim 2, driven axle active rotation, it is characterized in that: described locking price fixing inner peripheral surface is divided into left and right two sections vertically, is respectively equipped with left-handed, dextrorotation ratchet on described left and right two sections inner peripheral surface;
Be hinged with the identical at least 2 pairs of ratchets of shape by hinge on the end face of described locking rotating disk, one end of described ratchet is half ratchet, the other end is a driving lever, described each ratchet is installed face-to-face, half ratchet of one end can be meshed with described left-handed, the dextrorotation ratchet of described locking price fixing inner peripheral surface setting, and the driving lever of the other end is inserted in the space between the latch of the groove of described driving shaft end face and described passive axle head respectively and is in described latch both sides.
But 4, the transmission device of self-locking when a kind of driving shaft clockwise and anticlockwise according to claim 3, driven axle active rotation, it is characterized in that: described half ratchet is meant that the thickness of ratchet accounts for half of described wedge shape ratchet integral thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920064061U CN201391586Y (en) | 2009-04-15 | 2009-04-15 | Transmission device for self-locking when mainshaft rotates positively and reversely and driven shaft rotates actively |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920064061U CN201391586Y (en) | 2009-04-15 | 2009-04-15 | Transmission device for self-locking when mainshaft rotates positively and reversely and driven shaft rotates actively |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391586Y true CN201391586Y (en) | 2010-01-27 |
Family
ID=41598411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920064061U Expired - Fee Related CN201391586Y (en) | 2009-04-15 | 2009-04-15 | Transmission device for self-locking when mainshaft rotates positively and reversely and driven shaft rotates actively |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391586Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644119A (en) * | 2018-06-19 | 2018-10-12 | 珠海凌达压缩机有限公司 | A kind of two-axle interlocking or the device of separation and the multicylinder compressor of variable capacity |
| CN114810850A (en) * | 2022-04-08 | 2022-07-29 | 华中科技大学 | Bidirectional self-locking non-rear-drive clutch based on wedge-shaped cam and application thereof |
-
2009
- 2009-04-15 CN CN200920064061U patent/CN201391586Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644119A (en) * | 2018-06-19 | 2018-10-12 | 珠海凌达压缩机有限公司 | A kind of two-axle interlocking or the device of separation and the multicylinder compressor of variable capacity |
| CN108644119B (en) * | 2018-06-19 | 2024-01-12 | 珠海凌达压缩机有限公司 | Two-axis linkage or separation device and variable-capacity multi-cylinder compressor |
| CN114810850A (en) * | 2022-04-08 | 2022-07-29 | 华中科技大学 | Bidirectional self-locking non-rear-drive clutch based on wedge-shaped cam and application thereof |
| CN114810850B (en) * | 2022-04-08 | 2023-02-14 | 华中科技大学 | Bidirectional self-locking non-rear-drive clutch based on wedge-shaped cam and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20100415 |