CN213839446U - Transmission mechanism capable of self-adapting take-up and pay-off ratio - Google Patents
Transmission mechanism capable of self-adapting take-up and pay-off ratio Download PDFInfo
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- CN213839446U CN213839446U CN202022853385.XU CN202022853385U CN213839446U CN 213839446 U CN213839446 U CN 213839446U CN 202022853385 U CN202022853385 U CN 202022853385U CN 213839446 U CN213839446 U CN 213839446U
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Abstract
The utility model relates to the technical field of transmission systems in mechanical equipment, in particular to a transmission mechanism with self-adaptive take-up and pay-off line ratio.A driving shaft is detachably arranged on the side wall of a base and is sleeved with a group of one-way bearings; steering spindle detachable installs on the bottom plate of base, and the cotton rope is on establishing one-way bearing, the steering spindle of one-way bearing, driven shaft of driving shaft, later passes the terminal of the line hole peripheral hardware on the base lateral wall and links to each other, the utility model discloses use single power supply, through setting up the one-way bearing of installation moreover, when the cotton rope walks around one-way bearing motion, realized the self-adaptation control of the speed ratio between receipts line rope and the unwrapping wire rope that the terminal required, the utility model discloses a flexible control has reduced drive mechanism's volume, easily carries and dresses.
Description
Technical Field
The utility model relates to a transmission system technical field among the mechanical equipment, specifically say the drive mechanism of self-adaptation receive and releases line ratio.
Background
At present, the exoskeleton auxiliary instrument is used as a device for assisting actions of specific people, external force assistance is carried out on four limbs of a human body, the four limbs are mainly bent and stretched and are defined as movable terminals, and therefore the principle of the exoskeleton auxiliary instrument is that the movable terminals are controlled to move through a power source and a transmission mechanism.
Therefore, the transmission mechanism is an extremely important part, and the existing transmission mechanisms basically adopt a rigid structure to carry out transmission, namely, the motion control of limbs is realized by rigidly connecting each joint and installing necessary power and transmission devices by a connecting rod, but the rigid transmission has the following problems:
(1) in the existence of the rigid rod, the movement mode is single, and the natural movement of four limbs of a human cannot be completely simulated;
(2) a plurality of power sources and transmission devices are needed, so that the whole transmission mechanism is too large and is not easy to wear and carry;
(3) different modes need to be realized for the same terminal or the same equipment is worn on different people, the requirements of different bending and stretching speed ratios are met, and the existing transmission mechanism cannot realize the large-range change and adjustment of the speed ratio.
Therefore, it is necessary to design a transmission mechanism capable of controlling the bending and stretching of the terminal by using a single power source and having adaptive requirements of the bending and stretching speed ratio.
Disclosure of Invention
The utility model discloses broken through prior art's a difficult problem, designed one kind can utilize single power supply control terminal's crooked and stretch and possess the transmission mechanism of crooked and the adaptive requirement that stretch speed ratio simultaneously.
In order to achieve the purpose, the utility model designs a drive mechanism of self-adaptation receive and releases line ratio, its characterized in that: a driving shaft, a driven shaft, a base, a one-way bearing, a thread rope and a steering shaft,
the driving shaft is detachably mounted on the side wall of the base, a group of one-way bearings are sleeved on the driving shaft, a driven shaft is arranged beside the driving shaft, the driven shaft is also detachably mounted on the side wall of the base, another group of one-way bearings are sleeved on the driven shaft, and the driven shaft is connected with the driving shaft through a gear pair and rotates along with the driving shaft; the steering shaft is detachably mounted on a bottom plate of the base, and the rope is wound on the one-way bearing of the driving shaft, the one-way bearing of the driven shaft and the steering shaft and then passes through a terminal arranged outside the wire hole in the side wall of the base to be connected.
Furthermore, the number of the one-way bearings on the driving shaft, the number of the one-way bearings on the driven shaft, the number of the steering shafts and the number of the ropes are the same and are at least 2.
Furthermore, the one-way bearing on the driving shaft is divided into a first one-way bearing and a second one-way bearing;
the one-way bearing on the driven shaft is divided into a third one-way bearing and a fourth one-way bearing;
the steering shaft is divided into a first steering shaft and a second steering shaft;
the cord is divided into a first cord and a second cord.
Furthermore, the first rope is wound on a first one-way bearing of the driving shaft, a third one-way bearing of the driven shaft and the first steering shaft, and then passes through a first wire hole in the side wall of the base to be connected with an external terminal;
and the second line rope is wound on a second one-way bearing of the driving shaft, a fourth one-way bearing of the driven shaft and a second steering shaft and then passes through a second line hole in the side wall of the base to be connected with a terminal of the peripheral.
Furthermore, the gear pair comprises a driving gear and a driven gear, the driving gear is sleeved on the driving shaft, and the driven gear is sleeved on the driven shaft.
Furthermore, one end of the driving shaft penetrates through the side wall of one side of the base and is connected with a power source arranged outside.
Further, the rotation directions of the first one-way bearing and the third one-way bearing are the same;
the second one-way bearing and the fourth one-way bearing rotate in the same direction.
Furthermore, the rotating directions of the first one-way bearing and the third one-way bearing are opposite to the rotating directions of the second one-way bearing and the fourth one-way bearing.
Further, the first steering shaft and the second steering shaft rotate in opposite directions;
the rotating direction of the first steering shaft is the same as that of the first one-way bearing and the third one-way bearing;
and the rotating direction of the second steering shaft is the same as that of the second one-way bearing and the fourth one-way bearing.
Further, the utility model discloses still include the axle of pressing, press the axle to be located the upper and lower both sides of driven shaft, make the cotton rope lean on tightly the one-way bearing on the driven shaft, the order is qualified for the next round of competitions reliably.
Compared with the prior art, the utility model, only one power source is used, and through setting up the one-way bearing of installation, when the cotton rope walks around the one-way bearing motion, the self-adaptive control of the speed ratio between the line receiving rope and the line releasing rope that the terminal requires has been realized, set up the one-way bearing on the driven shaft, when the cotton rope walks around the one-way bearing motion, realized the power source to the terminal time sharing independent control of two kinds of actions; the gear pair is used for realizing the primary control of the wire winding and unwinding, and the final confirmation of the wire unwinding speed can be carried out by utilizing the speed ratio between the wire winding and unwinding.
Drawings
FIG. 1 is a top view of an adaptive take-up to pay-off line ratio transmission mechanism in a terminal bend state according to one embodiment.
FIG. 2 is a front view of an adaptive take-up to pay-off line ratio transmission mechanism in a terminal bend state in one embodiment.
FIG. 3 is a top view of an embodiment of an adaptive pay-off and take-up line ratio drive mechanism in a terminal extended state.
FIG. 4 is a front view of an adaptive pay-off and take-up line ratio drive mechanism in a terminal extended state in one embodiment.
Wherein, 1 is the driving shaft, 2 is the base, 3 is the driven shaft, 4 is first one-way bearing, 5 is the one-way bearing of second, 6 is the one-way bearing of third, 7 is the one-way bearing of fourth, 8 is first steering spindle, 9 is the second steering spindle, 10 is first line rope, 11 is the second line rope, 12 is the driving gear, 13 is driven gear, 14 is the axle that presses.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, which are not intended as limitations of the present invention.
It should be noted that the drawings of the present invention are simplified and use non-precise ratios, and are only used for the purpose of facilitating and clearly assisting the description of the embodiments of the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
Referring to the attached drawings, in the specific implementation, preferably, 4 one-way bearings are adopted, one group is formed in two, and are respectively installed on the driving shaft 1 and the driven shaft 3, and the one-way bearings on the driving shaft 1 are divided into a first one-way bearing 4 and a second one-way bearing 5; the one-way bearing on the driven shaft 3 is divided into a third one-way bearing 6 and a fourth one-way bearing 7.
Preferably, 2 steering shafts are used, respectively designated as first steering shaft 8 and second steering shaft 9.
Preferably, two sets of cords, respectively designated as first cord 10 and second cord 11, are also used.
Preferably, 2 groups of pressing shafts 14 are also adopted and are respectively positioned at the upper side and the lower side of the driven shaft 3, so that the wire ropes are close to one-way bearings on the driven shaft 3, and the wire outlet is reliable.
When the device is installed, the driving shaft 1 is detachably installed on the side wall of the base 2, one end of the driving shaft penetrates through the side wall of one side of the base 2 to be connected with an external power source, and the other end of the driving shaft is sleeved with a driving gear 12 of a gear pair.
The driven shaft 3 is also detachably mounted on the side wall of the base 2 and located beside the driving shaft 1, a driven gear 13 of a gear pair is mounted on the driven shaft 3, and the driven gear 13 is meshed with the driving gear 12, so that the driven shaft 3 is driven to rotate along with the driving shaft 1.
Preferably, the steering shafts are detachably mounted on the bottom plate of the base 2, i.e. the bottom ends of the steering shafts are fixed to the bottom plate of the base.
The cord is used for controlling the terminal to move;
preferably, the first rope 10 is wound on the first one-way bearing 4 of the driving shaft 1, the third one-way bearing 6 of the driven shaft 3 and the first steering shaft 8, and then passes through the first wire hole on the side wall of the base 2 to be connected with a terminal of the external device;
preferably, the second cord 11 is wound around the second one-way bearing 5 of the driving shaft 1, the fourth one-way bearing 7 of the driven shaft 3 and the second steering shaft 9, and then passes through the second cord hole on the side wall of the base 2 to be connected with the terminal of the external device.
The driving shafts of the two strands of bent and stretched ropes of the control terminal are controlled by a single motor, the clutch effect of the one-way bearing is utilized to realize time-sharing independent control of the revolving and winding-up of the two strands of ropes, and when one strand of rope acts, the revolving and winding-up of the other strand of rope is not influenced; the single motor can simultaneously drive the driving shaft 1 and the driven shaft 3 to rotate by utilizing the matching of a gear pair; the friction force generated by the flexible hinge on the feeding shaft drives the revolving paying-off line of the winding shaft.
In specific implementation, the direction of the wire rope is changed by using a steering shaft according to the direction requirement of the terminal on the wire rope; according to the requirement of the terminal on the ratio of the winding and unwinding rates of the two ropes (the requirement of each wearing person is different in each design scheme), the power source drives the driving shaft 1 to rotate actively, the driven shaft 3 moves along with the driving shaft, the ropes are driven to perform winding and unwinding motions, and the rate is controlled by the terminal.
The winding and unwinding of the cord sets corresponding to the two different actions (bending and stretching) of the terminal are completely opposite, and the rate ratio is kept consistent.
After the transmission mechanism with the self-adaptive take-up and pay-off line ratio is assembled according to the description, the implementation can be carried out.
Example 1:
referring to fig. 1 and 2, an embodiment of the adaptive take-up and pay-off line ratio transmission mechanism is shown in a terminal curved state.
The bending of the termination requires the first cord 10 to be fed around the axle shaft 1 at a rate of 1 and the second cord 11 to be subsequently fed around the axle shaft 1 at a rate of n.
The method specifically comprises the following steps: the motor rotates to ensure that the first cord 10 is fed at a speed of 1 (unit), and the winding and unwinding speed of the second cord 11 are not influenced due to the existence of the first one-way bearing 4 and the second one-way bearing 5 on the driving shaft 1; the motor rotates, and the driven shaft 3 rotates reversely at a fixed speed relative to the driving shaft 1 through the transmission of a gear pair between the driving shaft 1 and the driven shaft 3; due to the existence of the third one-way bearing 6 and the fourth one-way bearing 7 on the driven shaft 3, the incoming line of the first rope 10 is not influenced by the rotation of the driven shaft 3; via the first steering shaft 8 the first cord 10 is led out of the transmission to the terminal end, which is controlled to bend at a fixed rate.
The bending of the terminal drives the second rope 11 to be led out at a speed n (unit), the driven shaft 3 and the driving shaft 1 are forced to be led out at the speed n (unit) through the second steering shaft 9, and the reliability of the led-out is ensured by pressing the shaft 14.
Example 2:
referring to fig. 3 and 4, an embodiment of the adaptive pay-off and take-up line ratio transmission mechanism is shown in a terminal extended state.
The stretching of the terminal requires the second cord 11 to be fed around the axle shaft 1 at a rate n (units) and the first cord 10 to be subsequently fed around the axle shaft 1 at a rate 1 (units).
The method specifically comprises the following steps: the motor rotates to ensure that the second rope 11 is fed at a speed n (unit), and due to the existence of the one-way bearing on the driving shaft 1, the winding and unwinding speed and the speed of the first rope 10 are not influenced; the driven shaft 3 rotates reversely relative to the driving shaft 1 at a fixed speed; due to the existence of the one-way bearing on the driven shaft 3, the incoming line of the second rope 11 is not influenced by the rotation of the driven shaft; through the second steering shaft 9, the second rope 11 exits the transmission mechanism and is connected with the terminal, and the terminal is controlled to stretch at a fixed speed.
The stretching of the terminal drives the first rope 10 to be led out at the speed of 1 (unit), the driven shaft 3 and the driving shaft 1 are forced to be led out at the speed of 1 (unit) through the first steering shaft 8, and the reliability of the led-out is ensured by pressing the shaft 14.
To sum up, the utility model discloses only used a power supply, through setting up the one-way bearing of installation moreover, when the cotton rope walks around the one-way bearing motion, realized the self-adaptation control of the speed ratio between receipts line rope and the unwrapping wire rope that the terminal required, moreover the utility model discloses a flexible control, the cotton rope of adoption also is flexible component, has reduced drive mechanism's volume, easily carries, easily dresses.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious changes made by the present invention and illustrated in the drawings are all included within the scope of the present invention.
Claims (10)
1. Transmission mechanism of self-adaptation receipts line ratio, its characterized in that: the transmission mechanism includes: the driving shaft (1) is detachably mounted on the side wall of the base (2), a group of one-way bearings are sleeved on the driving shaft (1), the driven shaft (3) is arranged beside the driving shaft (1), the driven shaft (3) is also detachably mounted on the side wall of the base (2), another group of one-way bearings are sleeved on the driven shaft (3), and the driven shaft (3) is connected with the driving shaft (1) through a gear pair and rotates along with the driving shaft (1); the steering shaft is detachably mounted on a bottom plate of the base (2), and the wire rope is wound on a one-way bearing of the driving shaft (1), a one-way bearing of the driven shaft (3) and the steering shaft and then passes through a terminal arranged outside a wire hole in the side wall of the base (2) to be connected.
2. The adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 1, wherein: the number of the one-way bearings on the driving shaft (1), the number of the one-way bearings on the driven shaft (3), the number of the steering shafts and the number of the ropes are the same and are at least 2.
3. The adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 2, wherein: the one-way bearing on the driving shaft (1) is divided into a first one-way bearing (4) and a second one-way bearing (5);
the other one-way bearing on the driven shaft (3) is divided into a third one-way bearing (6) and a fourth one-way bearing (7);
the steering shaft is divided into a first steering shaft (8) and a second steering shaft (9);
the cord is divided into a first cord (10) and a second cord (11).
4. The adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 3, wherein: the first rope (10) is wound on the first one-way bearing (4) of the driving shaft (1), the third one-way bearing (6) of the driven shaft (3) and the first steering shaft (8), and then penetrates through a first wire hole in the side wall of the base (2) to be connected with a terminal of an external device;
and the second rope (11) is wound on the second one-way bearing (5) of the driving shaft (1), the fourth one-way bearing (7) of the driven shaft (3) and the second steering shaft (9) and then passes through the second wire hole in the side wall of the base (2) to be connected with a terminal of the peripheral.
5. The adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 1, wherein: the gear pair comprises a driving gear (12) and a driven gear (13), the driving gear (12) is sleeved on the driving shaft (1), and the driven gear (13) is sleeved on the driven shaft (3).
6. The adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 1, wherein: one end of the driving shaft (1) penetrates through the side wall of one side of the base (2) and is connected with a power source arranged outside.
7. An adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 3 or 4, wherein: the rotating directions of the first one-way bearing (4) and the third one-way bearing (6) are the same;
the rotation directions of the second one-way bearing (5) and the fourth one-way bearing (7) are the same.
8. An adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 3 or 4, wherein: the rotating directions of the first one-way bearing (4) and the third one-way bearing (6) are opposite to the rotating directions of the second one-way bearing (5) and the fourth one-way bearing (7).
9. An adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 3 or 4, wherein: the first steering shaft (8) and the second steering shaft (9) rotate in opposite directions; the rotating direction of the first steering shaft (8) is the same as that of the first one-way bearing (4) and the third one-way bearing (6);
the rotating direction of the second steering shaft (9) is the same as that of the second one-way bearing (5) and the fourth one-way bearing (7).
10. The adaptive pay-off and take-up line ratio transmission mechanism as claimed in claim 1, wherein: the pressing device further comprises a pressing shaft (14), wherein the pressing shaft (14) is located on the upper side and the lower side of the driven shaft (3) to enable the wire rope to lean against the one-way bearing on the driven shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022853385.XU CN213839446U (en) | 2020-12-02 | 2020-12-02 | Transmission mechanism capable of self-adapting take-up and pay-off ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022853385.XU CN213839446U (en) | 2020-12-02 | 2020-12-02 | Transmission mechanism capable of self-adapting take-up and pay-off ratio |
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|---|---|
| CN213839446U true CN213839446U (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022853385.XU Active CN213839446U (en) | 2020-12-02 | 2020-12-02 | Transmission mechanism capable of self-adapting take-up and pay-off ratio |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460214A (en) * | 2020-12-02 | 2021-03-09 | 上海市静安区中心医院(复旦大学附属华山医院静安分院) | Transmission mechanism with small-range self-adaptive take-up and pay-off ratio |
-
2020
- 2020-12-02 CN CN202022853385.XU patent/CN213839446U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460214A (en) * | 2020-12-02 | 2021-03-09 | 上海市静安区中心医院(复旦大学附属华山医院静安分院) | Transmission mechanism with small-range self-adaptive take-up and pay-off ratio |
| CN112460214B (en) * | 2020-12-02 | 2024-01-19 | 上海市静安区中心医院(复旦大学附属华山医院静安分院) | Transmission mechanism with small-range self-adaptive coiling and uncoiling ratio |
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