CN205877101U - Gyration bridle - Google Patents

Gyration bridle Download PDF

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Publication number
CN205877101U
CN205877101U CN201620834434.6U CN201620834434U CN205877101U CN 205877101 U CN205877101 U CN 205877101U CN 201620834434 U CN201620834434 U CN 201620834434U CN 205877101 U CN205877101 U CN 205877101U
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CN
China
Prior art keywords
gear
bridle
projection
concave block
revolution
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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.)
Active
Application number
CN201620834434.6U
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Chinese (zh)
Inventor
刘峭丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Aerospace Institute of Mechanical and Electrical Equipment and Special Materials
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Hunan Aerospace Institute of Mechanical and Electrical Equipment and Special Materials
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Priority to CN201620834434.6U priority Critical patent/CN205877101U/en
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Abstract

The utility model discloses a gyration bridle, including fixing lug on first gear side, fixing the recessed blocks on second gear side, first gear and second gear mesh mutually, recessed blocks's profile border is no longer than the profile border of second gear, the last recess that is equipped with of recessed blocks, be equipped with on the lug can with the arch of recess block and separation. This device is initial to be used to be used to the group on, has realized at the very little bridle of installing of bulk locally simple and convenient, have that simple structure, small, light in weight, shared space are little, convenient assembling, restraint revolution are great, the practicality by force, advantages such as long service life. Can apply to variously to among the very harsh accurate machine design of space dimensional requirement, if be used to fields such as group, all kinds of precision instruments, possess wide application prospect.

Description

A kind of revolution bridle
Technical field
This utility model belongs to a kind of revolution bridle, can be used for being used to the instruments such as group.
Background technology
Used group needs to carry out the rotation of regulation corner according to the rotating mechanism within preset program driving, if it exceeds regulation Rotating range, will result in the operating disorders of used group.In order to rotationally constrained within the limits prescribed, just should be at suitable position Install revolution bridle additional.The angle range of used group regulation, more than 360 degree, needs to use the revolution bridle of complicated structure. At present, conventional this kind of revolution bridle includes spiral bridle, packing ring bridle, worm gear bridle and Gear-tappet Restraint ' Programming Deng.
Used group in actual applications, and the requirement to volume and weight is more and more harsher, therefore it is required that its bridle volume is more Little the best, weight is the lightest more good, and conventional this kind of revolution bridle is difficult to be suitable for.
Gear-tappet Restraint ' Programming own vol is less, but the most still there are some problems.Fig. 1 is that gear is convex Block bridle structure chart, it is each equipped with a projection 6 on intermeshing two gears 5, and two projection 6 own vols are relatively Little, but in rotary course, the profile of projection 6 needs to take certain space beyond the part of gear 5 external diameter profile, this space model It is not allow for other parts in enclosing, otherwise can interfere, cause rotation to realize.Even if it is to say, volume is relatively Little Gear-tappet Restraint ' Programming, also still could not accomplish volume optimization.
Utility model content
For the problems referred to above, this utility model aims to provide a kind of simple in construction, volume optimization, lightweight, institute's duty Between little revolution bridle, be highly suitable for that used group is this kind of requires harsh instrument to bulk.
This utility model solves the technical scheme of problem: a kind of revolution bridle, including being fixed on the first gear side On projection, the concave block that is fixed on the second gear side;
Described first gear and the second gear are meshed;
The silhouette edge of described concave block is along the silhouette edge edge less than the second gear;
Described concave block is provided with groove, and described projection is provided with can be with groove engaging and the projection separated.
In such scheme, the design of concave block, less than the silhouette edge edge of the second gear so that turning course concave tuber is originally It is not take up extra volumetric spaces so that spatial volume utilizes and reaches optimization.
Preferably, described concave block is concordant towards the edge of that side of projection and the root circle of the second gear.This kind of design The projection length enabled on projection shortens as far as possible, thus shortens its part beyond the first outside diameter of gear profile, enters One step reduces the spatial dimension taken in projection rotary course.
Further, described first gear or the second gear are connected with power source.This bridle is near power source, it is to avoid Numerous part is caused to be acted on by restraint moment.
Preferably, described concave block and projection all use steel alloy to make.Steel alloy hardness is high, it is ensured that bridle itself has There are enough mechanical strengths.
This utility model to apply to various require in the harshest Precision Machinery Design to bulk, as used group, each The fields such as class precision instrument, gather around and have broad application prospects.Its remarkable result is:
1. utilizing concave block, the feature of projection shape, in rotary course, major part position concave, convex block will not be collided, only The concave, convex block engaging when rotating to certain ad-hoc location, is achieved in the anglec of rotation restraint scope more than 360 degree.
2., when concave block is arranged on the second gear, its profile, without departing from the shape of the second outside diameter of gear profile, therefore exists Rotary course need not the most additionally take up room, be effectively saved bulk, at each quasi-instrument that bulk is the least Middle practicality is higher.
3. the simple shape of this device, need not in design process calculate in a large number, reduces design requirement, practical.
4. concave block, the shape of projection and position required precision are the highest, and machining is easily achieved, processing technology Good, reduce difficulty of processing and the cost of manufacture of part.During assembling less demanding to installation accuracy, simple, significantly Reduce assembled in situ difficulty, save field-erection time.
Accompanying drawing explanation
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is Gear-tappet Restraint ' Programming schematic diagram.
Fig. 2 is that this utility model turns round bridle schematic diagram.
In figure: 1-the first gear, 2-the second gear, 3-projection, 4-concave block, 5-gear, 6-projection.
Detailed description of the invention
As in figure 2 it is shown, a kind of revolution bridle, including the projection 3 being fixed on the first gear 1 side, it is fixed on second Concave block 4 on gear 2 side.
Described first gear 1 and the second gear 2 are meshed.
Described concave block is provided with groove, and described projection is provided with can be with groove engaging and the projection separated.
The silhouette edge of described concave block 4 is along the silhouette edge edge less than the second gear 2.Concave block 4 is towards that side of projection 3 The root circle of edge and the second gear 2 is concordant.This kind is designed to so that the projection length on projection 3 shortens as far as possible, from And shorten its part beyond the first gear 1 external diameter profile, reduce the spatial dimension taken in projection 3 rotary course further.
Concave block 4 is less than the silhouette edge edge of the second gear 2 so that in turning course, concave block 4 does not take extra body Product space so that spatial volume utilizes and reaches optimization.
Preferably, described concave block 4 and projection 3 all use steel alloy to make.
Described first gear 1 or the second gear 2 are connected with power source.
Work process of the present utility model is:
Projection 3 connects firmly on the first gear 1, rotates with the first gear 1, and concave block 4 connects firmly on the second gear 2, with Second gear 2 rotates together.
Assuming that the first gear 1 is drivewheel (diameter of wheel is less), the second gear 2 is driven pulley (being relatively large in diameter of wheel), First gear 1 rotates with power source.First gear 1 driven gear 2 again rotates.
Fig. 2 show the initial position that used group rotates, and starts to rotate forward from initial position, and projection 3 and concave block 4 separate. When the first gear 1 rotates some circles, and after the second gear 2 rotates to an angle, projection 3 and concave block 4 engage, now the first tooth simultaneously Wheel the 1, second gear 2 is rotated forward by restriction.
Then the first gear 1 starts to rotate backward, when the first gear 1 reversely rotates some circles, and the second gear 2 rotates simultaneously After certain angle (the second gear 2 on the way can be through initial position), projection 3 and concave block 4 engage again, now the first gear 1, Second gear 2 is rotated backward by restriction again.
During whole, the first gear 1 and the second gear 2 can only the most forward and reverse rotation, wherein the first teeth Wheel 1 can rotate some circles, and the corner of the second gear 2 is more than 360 °.
It is explained above preferred implementation of the present utility model, but is not limited to above-mentioned embodiment, can fit Work as change.For example, it is also possible to connected firmly by projection 3 on the second gear 2, concave block 4 connects firmly on the first gear 1.
So, these those skilled in the art, without departing from the concept of the premise utility, that is made simply pushes away Drill or replace, all should be considered as belonging to protection domain of the present utility model.

Claims (4)

1. a revolution bridle, it is characterised in that: include the projection (3) being fixed on the first gear (1) side, be fixed on the Concave block (4) on two gears (2) side;
Described first gear (1) and the second gear (2) are meshed;
The silhouette edge of described concave block (4) is along the silhouette edge edge less than the second gear (2);
Described concave block (4) is provided with groove, and described projection (3) is provided with can be with groove engaging and the projection separated.
Revolution bridle the most according to claim 1, it is characterised in that: described concave block (4) is towards that side of projection (3) Edge and the root circle of the second gear (2) concordant.
Revolution bridle the most according to claim 1, it is characterised in that: described first gear (1) or the second gear (2) with Power source connects.
Revolution bridle the most according to claim 1, it is characterised in that: described concave block (4) and projection (3) all use alloy Steel is made.
CN201620834434.6U 2016-08-04 2016-08-04 Gyration bridle Active CN205877101U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620834434.6U CN205877101U (en) 2016-08-04 2016-08-04 Gyration bridle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620834434.6U CN205877101U (en) 2016-08-04 2016-08-04 Gyration bridle

Publications (1)

Publication Number Publication Date
CN205877101U true CN205877101U (en) 2017-01-11

Family

ID=57702152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620834434.6U Active CN205877101U (en) 2016-08-04 2016-08-04 Gyration bridle

Country Status (1)

Country Link
CN (1) CN205877101U (en)

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