CN220488165U - Constant torque spring structure - Google Patents
Constant torque spring structure Download PDFInfo
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- CN220488165U CN220488165U CN202321816104.0U CN202321816104U CN220488165U CN 220488165 U CN220488165 U CN 220488165U CN 202321816104 U CN202321816104 U CN 202321816104U CN 220488165 U CN220488165 U CN 220488165U
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- winding wheel
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- wheel
- constant torque
- positioning pin
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- 238000004804 winding Methods 0.000 claims abstract description 97
- 238000005491 wire drawing Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 5
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 5
- 241001330002 Bambuseae Species 0.000 abstract description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 5
- 239000011425 bamboo Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The application discloses constant torque spring structure relates to mechanical structure technical field, including the mount pad, a plurality of locating pin axle and winding wheel, each locating pin axle all axially passes winding wheel that corresponds with it in proper order, baffle and a wire drawing wheel section of thick bamboo, its end is added and is equipped with the end cover that connects winding wheel and wire drawing wheel section of thick bamboo as an organic whole, all twine the moment of torsion wind spring on the outer peripheral face of each second winding wheel, the other end of each moment of torsion wind spring is collected in the outer peripheral face department of first winding wheel with range upon range of mode, the technical advantage of this application is: the plurality of second winding wheels and the torque coil springs are arranged on the first winding wheels in a superposition winding mode, so that the torque output to the outside is improved, and the problem of failure after material fatigue is solved by the plurality of torque coil springs; the structure of the multi-torque coil springs is arranged on both sides, so that the torque output by the external is further improved; the multi-directional synchronous torque output can be simultaneously realized by changing the arrangement position of the pull rope on the second winding wheel.
Description
Technical Field
The application relates to the technical field of mechanical structures, in particular to a constant torque spring structure.
Background
A constant torque spring is a specially designed spring whose primary function is to provide a constant torque output. Typically made of an elastic material such as steel or an alloy. The constant torque spring is characterized by being able to provide a relatively stable torque output during torsion, regardless of the change in torsion angle. Constant torque springs are commonly used in mechanical devices, electronics, and various applications requiring precise torque control, where the design principle of the constant torque spring is based on its geometry and material characteristics to achieve the desired torque output through the appropriate spring shape and wire diameter. When an applied torque acts on the spring, it will twist and produce a reaction force that will counteract the external torque and maintain a relatively constant output torque.
In the existing constant torque spring structure, the size of the torque coil spring is limited by the size of the mounting seat, so that the maximum torque value output is fixed, and the use requirement of large torque cannot be met; and the acting force output end of the constant torque spring can be immediately disabled after material fatigue occurs in the using process, so that the use requirement of the constant torque spring for the stability of the spring in practical application is not met.
Disclosure of Invention
The device provides a constant torque spring structure, and the specific implementation mode is as follows:
a constant torque spring structure comprising:
the installation seat is divided into a wiring bin for accommodating the stay wire wheel cylinder and the stay wire and a spring bin for accommodating the winding wheel and the torque coil spring by the baffle plate;
the positioning pins axially sequentially penetrate through the winding wheel, the baffle plate and the wire drawing wheel tube corresponding to the positioning pins, and an end cover for connecting the winding wheel and the wire drawing wheel tube into a whole is additionally arranged at the tail end of the positioning pins;
the winding wheel is divided into a first winding wheel and a plurality of second winding wheels, torque coil springs are wound on the outer peripheral surface of each second winding wheel, and the other ends of the torque coil springs are gathered and wound at the outer peripheral surface of the first winding wheel in a stacking mode.
Based on the technical scheme, through the superposition cooperation of a plurality of torque coil springs, the torque of the winding wheel is further improved, and the torque output value is more constant.
Preferably, the first winding wheel and the second winding wheel are hollow structures with the same structure, taking the connection mode of the first winding wheel and the positioning pin shaft as an example, the circumferential surface of the positioning pin shaft is provided with a limiting guide groove along the length direction of the positioning pin shaft, the inner side of the first winding wheel is provided with a second limiting bulge axially matched with the limiting guide groove, and the inner side of the stay wire wheel cylinder is also provided with a first limiting bulge axially matched with the limiting guide groove.
Preferably, the end part of the positioning pin shaft is provided with external threads, the inner side of the end cover is provided with internal threads connected with the external threads, and the inner side end surface of the end cover is abutted with the side part of the wire pulling wheel cylinder.
Preferably, the electric wire distributor further comprises a first decorative plate and a second decorative plate, wherein the outer end parts of the wiring bin and the spring bin are all in a conducting state, the conducting end parts of the wiring bin and the spring bin are provided with a detachable first decorative plate and a detachable second decorative plate, and the first decorative plate is provided with a conducting hole through which the end cover passes.
Based on above technical scheme, utilize spacing arch and spacing guide slot to prevent to produce relative rotation between winding wheel and the wheel tube of acting as go-between and the locating pin axle, utilize the locating pin axle that is T font structure to carry out the axial spacing of both ends tip with the end cover simultaneously for winding wheel and the wheel tube of acting as go-between take place synchronous rotation along with the locating pin axle.
Preferably, the first winding wheel and the second winding wheel have the same structure, and a plurality of bolt holes are formed in the inner side end parts of the first winding wheel and the second winding wheel at equal intervals along the circumferential direction of the first winding wheel and the second winding wheel.
Based on the above technical scheme, the combination modes of the specific stay cord and the winding wheel are three, and the combination modes are respectively as follows:
first, the stay cord twines to locate on the stay cord wheel section of thick bamboo that corresponds with first winding wheel axial, and the unwrapping wire guide hole has been seted up to the lateral part in wiring storehouse, and the tip of stay cord outwards wears out through unwrapping wire guide hole, and the bolt hole on the second winding wheel passes through the bolt silk and connects in the baffle.
Secondly, a plurality of stay cords are arranged, the stay cords are respectively wound on stay cord wheel cylinders corresponding to the axial directions of the second winding wheels, paying-off guide grooves are formed in the side parts of the wiring bins, the end parts of the stay cords outwards penetrate through the paying-off guide grooves, and bolt holes in the first winding wheels are connected to the baffle through bolt wires.
And thirdly, two baffles are arranged, the inner side of the mounting seat is divided into a spring bin, a wiring bin and a spring bin in sequence, and by taking connection between the first winding wheel and the positioning pin shaft as an example, two first winding wheels wound with torque coil springs are coaxially arranged on the positioning pin shaft.
Preferably, the torque coil spring (8) is provided in a constant torque or torque-variable configuration.
In summary, the present application includes the following beneficial technical effects:
1. according to the utility model, the plurality of second winding wheels and the torque coil springs are arranged on the first winding wheels in a superposition winding manner, so that the torque output to the outside is improved, and the plurality of torque coil springs also solve the problem of direct failure after material fatigue;
2. according to the utility model, the multi-torque coil spring structure is arranged on both sides, so that the torque output to the outside is further improved;
3. the utility model has simple structure, and can realize multidirectional synchronous torque output by changing the arrangement position of the pull rope on the second winding wheel and changing the mounting mode of the winding wheel.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an exploded schematic view of the structure of the present utility model;
FIG. 3 is a cross-sectional view of the structure of FIG. 1 after explosion in accordance with the present utility model;
FIG. 4 is a cross-sectional view of the structure of FIG. 1 in accordance with the present utility model;
FIG. 5 is a right side view of the present utility model;
FIG. 6 is a schematic view of a modified embodiment of the present utility model;
fig. 7 is a schematic structural view of the second modification of the present utility model.
Reference numerals illustrate:
1. the wire drawing device comprises a mounting seat, 2, a pull rope, 3, a first decorative plate, 4, a second decorative plate, 5, a wire drawing wheel cylinder, 6, a first winding wheel, 7, a second winding wheel, 8, a torque coil spring, 9, a positioning pin, 10, an end cover, 101, a baffle, 102, a wire drawing guide hole, 103, a spring bin, 104, a wire distribution bin, 105, a wire drawing guide groove, 501, a first limiting protrusion, 601, a second limiting protrusion, 602, a bolt hole, 901, a limiting guide groove, 902 and external threads.
Detailed Description
The following describes specific embodiments of the utility model with reference to the drawings and examples:
it should be noted that the structures, proportions, sizes, etc. shown in the drawings are merely for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims.
Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
The present application is described in further detail below in conjunction with figures 1-7.
The embodiment of the application discloses a constant torque spring structure.
Example 1
Referring to fig. 1 to 6, this embodiment discloses a constant torque spring structure, including mount pad 1, winding wheel and a plurality of locating pin 9, separate into the wiring storehouse 104 that is used for holding wire drawing wheel tube 5, stay cord 2 and be used for holding winding wheel, torque coil spring 8's spring storehouse 103 through baffle 101 in the mount pad 1, each locating pin 9 all axially passes winding wheel that corresponds with it in proper order, baffle 101 and wire drawing wheel tube 5, its end adds and is equipped with the end cover 10 that connects winding wheel and wire drawing wheel tube 5 as an organic whole, the winding wheel divide into a first winding wheel 6 and a plurality of second winding wheel 7 in this structure, all twine torque coil spring 8 on each second winding wheel 7's the outer peripheral face, the other end of each torque coil spring 8 gathers in the outer peripheral face department of first winding wheel 6 with range upon range of mode.
The first winding wheel 6 and the second winding wheel 7 are hollow structures with the same structure, taking the connection mode of the first winding wheel 6 and the positioning pin 9 as an example, the circumferential surface of the positioning pin 9 is provided with a limiting guide groove 901 along the length direction of the positioning pin, the inner side of the first winding wheel 6 is provided with a second limiting bulge 601 axially matched with the limiting guide groove 901, and the inner side of the wire pulling wheel cylinder 5 is also provided with a first limiting bulge 501 axially matched with the limiting guide groove 901.
The tip of locating pin 9 is provided with external screw thread 902, the inboard of end cover 10 is equipped with the internal thread that connects with it, and the inboard terminal surface department of end cover 10 and the lateral part butt of stay wire wheel section of thick bamboo 5, first winding wheel 6 is the same with second winding wheel 7 structure, a plurality of bolt hole 602 has all been seted up along its circumference equidistance to both inboard tip, stay cord 2 winding is located on the stay wire wheel section of thick bamboo 5 that corresponds with first winding wheel 6 axial in this structure, the unwrapping wire guide hole 102 has been seted up to the lateral part of wiring storehouse 104, the tip of stay cord 2 outwards wears out through unwrapping wire guide hole 102, and bolt hole 602 on the second winding wheel 7 passes through the bolt silk and connects in baffle 101.
Still include first decorative board 3 and second decorative board 4, the outer tip in wiring storehouse 104 and spring storehouse 103 all sets up to switch on the form, and its switch on the tip and be equipped with detachable first decorative board 3 and second decorative board 4, and set up the via hole that supplies end cover 10 to pass on the first decorative board 3.
The specific implementation process is as follows: pulling the pull rope 2 outwards from the paying-off guide hole 102, and synchronously rotating the pull rope pulley 5, the first winding wheel 6 and the positioning pin shaft 9; and then drives each torque coil spring 8 to rotate, and synchronously provides reverse stable acting force for the pull rope 2.
Example 2
Referring to fig. 7, and based on embodiment 1, this embodiment further provides a constant torque spring structure, the pull ropes 2 are provided with a plurality of pull wire wheel cylinders 5 which are respectively wound on the pull wire wheel cylinders 5 corresponding to the second winding wheel 7 in the axial direction, the side portion of the wiring bin 104 is provided with a paying-off guide slot 105, the end portion of each pull rope 2 is outwards penetrated out through the paying-off guide slot 105, and the bolt holes 602 on the first winding wheel 6 are screwed on the baffle 101 through bolts, in this structure, by applying synchronous pulling forces in the same direction or different directions to each pull rope 2, a plurality of external outputs can be made, during use, only the second decorative plate 4 is required to be opened, bolts between the first winding wheel 6 and the baffle 101 are installed, bolts between the second winding wheel 7 and the baffle 101 are detached, and at this time, the first winding wheel 6 and the corresponding pull wire wheel cylinders 5 are fixedly installed, and the second winding wheel 7 and the corresponding pull wire wheel cylinders 5 can rotate relative to the baffle 101.
Example 3
Referring to fig. 6, and based on embodiment 1, this embodiment further provides a constant torque spring structure, the baffle 101 is provided with two, it divides into spring storehouse 103, wiring storehouse 104 and spring storehouse 103 with mount pad 1 inboard in proper order, take the connection between first winding wheel 6 and the locating pin 9 as an example, two first winding wheels 6 that twine have torque coil spring 8 are coaxial to be arranged on the locating pin 9, set up two first winding wheels 6 and two spring storehouse 103 in this structure, be two side torque output promptly, and then promoted external output torque.
Many other changes and modifications may be made without departing from the spirit and scope of the utility model. It is to be understood that the utility model is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (10)
1. A constant torque spring structure, comprising:
the device comprises a winding wheel and a plurality of positioning pin shafts (9), wherein each positioning pin shaft (9) axially sequentially passes through the winding wheel and a wire drawing wheel cylinder (5) corresponding to the positioning pin shaft, and an end cover (10) for connecting the winding wheel and the wire drawing wheel cylinder (5) into a whole is additionally arranged at the tail end of the positioning pin shaft (9);
the winding wheel is divided into a first winding wheel (6) and a plurality of second winding wheels (7), torque coil springs (8) are wound on the outer peripheral surface of each second winding wheel (7), and the other ends of the torque coil springs (8) are gathered and wound at the outer peripheral surface of the first winding wheel (6) in a stacking mode.
2. The constant torque spring structure according to claim 1, further comprising a mounting seat (1), wherein the mounting seat (1) is internally divided into a wiring bin (104) for accommodating a wire pulling wheel cylinder (5) and a pull rope (2) and a spring bin (103) for accommodating a winding wheel and a torque coil spring (8) through a baffle plate (101).
3. The constant torque spring structure according to claim 2, wherein the first winding wheel (6) and the second winding wheel (7) are hollow structures with the same structure, and taking a connection mode of the first winding wheel (6) and the positioning pin shaft (9) as an example, a limiting guide groove (901) is formed in the circumferential surface of the positioning pin shaft (9) along the length direction of the positioning pin shaft, a second limiting protrusion (601) axially matched with the limiting guide groove (901) is formed on the inner side of the first winding wheel (6), and a first limiting protrusion (501) axially matched with the limiting guide groove (901) is also formed on the inner side of the wire drawing wheel cylinder (5).
4. A constant torque spring structure according to claim 3, characterized in that the end of the positioning pin (9) is provided with an external thread (902), the inside of the end cover (10) is provided with an internal thread screwed with the end cover, and the inside end surface of the end cover (10) is abutted with the side part of the wire pulling wheel cylinder (5).
5. The constant torque spring structure according to claim 2, wherein the first winding wheel (6) and the second winding wheel (7) are identical in structure, and a plurality of bolt holes (602) are formed in inner side end portions of the first winding wheel and the second winding wheel at equal intervals along the circumferential direction of the first winding wheel and the second winding wheel.
6. The constant torque spring structure according to claim 5, wherein the pull rope (2) is wound on the pull wire drum (5) axially corresponding to the first winding wheel (6), a paying-off guide hole (102) is formed in the side portion of the wiring bin (104), the end portion of the pull rope (2) is outwards penetrated out through the paying-off guide hole (102), and the bolt hole (602) in the second winding wheel (7) is connected to the baffle plate (101) through a bolt.
7. The constant torque spring structure according to claim 5, wherein the pull ropes (2) are provided with a plurality of pull rope drums (5) which are respectively wound on the pull rope drums (5) axially corresponding to the second winding wheels (7), a paying-off guide groove (105) is formed in the side portion of the wiring bin (104), the end portion of each pull rope (2) is outwards penetrated out through the paying-off guide groove (105), and the bolt holes (602) in the first winding wheels (6) are connected to the baffle plate (101) through bolt wires.
8. The constant torque spring structure according to claim 2, further comprising a first decorative plate (3) and a second decorative plate (4), wherein the outer ends of the wiring bin (104) and the spring bin (103) are all arranged in a conducting state, the conducting ends of the wiring bin are provided with the first decorative plate (3) and the second decorative plate (4) which are detachable, and the first decorative plate (3) is provided with a conducting hole for the end cover (10) to pass through.
9. The constant torque spring structure according to claim 2, wherein two baffles (101) are provided, which divide the inner side of the mounting base (1) into a spring chamber (103), a wiring chamber (104) and a spring chamber (103) in sequence, and taking a connection between the first winding wheel (6) and the positioning pin (9) as an example, two first winding wheels (6) wound with the torque coil springs (8) are coaxially arranged on the positioning pin (9).
10. A constant torque spring structure according to claim 2, characterized in that the torque coil spring (8) is arranged as a constant torque or torque-variable structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321816104.0U CN220488165U (en) | 2023-07-12 | 2023-07-12 | Constant torque spring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321816104.0U CN220488165U (en) | 2023-07-12 | 2023-07-12 | Constant torque spring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220488165U true CN220488165U (en) | 2024-02-13 |
Family
ID=89837579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321816104.0U Active CN220488165U (en) | 2023-07-12 | 2023-07-12 | Constant torque spring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220488165U (en) |
-
2023
- 2023-07-12 CN CN202321816104.0U patent/CN220488165U/en active Active
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