CN109519457B - Locking ring - Google Patents

Locking ring Download PDF

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Publication number
CN109519457B
CN109519457B CN201811533616.XA CN201811533616A CN109519457B CN 109519457 B CN109519457 B CN 109519457B CN 201811533616 A CN201811533616 A CN 201811533616A CN 109519457 B CN109519457 B CN 109519457B
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CN
China
Prior art keywords
locking ring
spiral
locking
clamping groove
screw
Prior art date
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Active
Application number
CN201811533616.XA
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Chinese (zh)
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CN109519457A (en
Inventor
李素强
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.)
Xian Aircraft Design and Research Institute of AVIC
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Xian Aircraft Design and Research Institute of AVIC
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Publication date
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Priority to CN201811533616.XA priority Critical patent/CN109519457B/en
Publication of CN109519457A publication Critical patent/CN109519457A/en
Application granted granted Critical
Publication of CN109519457B publication Critical patent/CN109519457B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B21/00Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/20Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts for bolts or shafts without holes, grooves, or notches for locking members
    • F16B21/205Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts for bolts or shafts without holes, grooves, or notches for locking members the connecting means having gripping edges in the form of a helix
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20Other details, e.g. assembly with regulating devices

Abstract

The invention belongs to the technical field of mechanical structure design, and relates to a locking ring; comprises an upper locking ring (5), a middle locking ring (12) and a lower locking ring (21) which are connected together in sequence from top to bottom through a screw pair; the middle upper spiral surface (19) above the middle locking ring (12) is matched with the first spiral surface (11) below the upper locking ring (5) to form a spiral pair, and the middle lower spiral surface (20) below the middle locking ring is matched with the second spiral surface (27) of the lower locking ring (21) to form a spiral pair; the outer circumference of each locking ring is distributed with a hexagonal body, a circular/rectangular clamping groove and a circular hole groove (4) which is combined with the clamping groove body (8); the locking ring has a novel structure, the axial locking adjustable distance of the two pairs of spiral surfaces is larger than that of the traditional single spiral pair, the technical problems of short locking adjustment distance, small locking force and poor applicability of the conventional locking ring are solved, and the locking ring has strong applicability and wide application range.

Description

Locking ring
Technical Field
The invention belongs to the field of machinery, and relates to a locking ring.
Background
A standard locking ring is commercially available and is schematically shown in figure 1. The center of the locking ring 1 is a through hole 2, one side surface vertical to the shaft is a spiral surface 3, and the outer circumferential surface parallel to the shaft is provided with a circular hole groove 4. The screw surfaces 3 of the two same locking rings 1 are opposite, the axial locking distance is adjusted only by means of the change of the linear distance after the pair of screw surfaces are rotated relatively, the locking distance is short, and once the adjustment distance is increased and exceeds the screw adjustment distance of the screw surfaces of the two locking rings, the locking rings cannot be locked. Additionally, (see fig. 1), the locking ring is tightened by a hook-head wrench, but in use of the loading device it is found that: firstly, once the locking ring is locked when being loaded or is over-stressed, when the work is finished, the locking ring can not be unscrewed through a small moment of the hook-shaped spanner, so that devices such as a locked load sensor and the like can not be detached, secondly, sometimes, the initial locking force needs to be in place (for example, equipment installed at high altitude needs to be locked in place at one time), and the small moment of the hook-shaped spanner can not be met. The round-head hook-shaped spanner belongs to an infrequently used tool, and is inconvenient to use in practice.
Disclosure of Invention
The purpose of the invention is: a novel locking ring is designed to solve the technical problems of short locking adjusting distance, small locking force and poor applicability of the existing locking ring.
In order to solve the technical problem, the technical scheme of the invention is as follows:
a locking ring comprises an upper locking ring 5, a middle locking ring 12 and a lower locking ring 21 which are sequentially connected together through a screw pair from top to bottom; the upper and lower surfaces of the middle locking ring 12 vertical to the shaft are provided with screw surfaces, the upper middle screw surface 19 above the middle locking ring is matched with the first screw surface 11 below the upper locking ring 5 to form a screw pair, and the lower middle screw surface 20 below the middle locking ring is matched with the second screw surface 27 of the lower locking ring 21 to form a screw pair; the upper locking ring 5, the middle locking ring 12 and the lower locking ring 21 are all provided with through holes 2.
The upper locking ring 5 is provided with a polyhedron 7 and a clamping groove body 8 on the outer circumferential surface parallel to the shaft.
The upper locking ring 5 has a circular hole groove 4 on the outer circumferential surface parallel to the axis for a tool with a small moment.
The middle locking ring 12 is provided with a polyhedron 7 and a clamping groove body 8 on the outer circumferential surface parallel to the shaft.
The middle locking ring 12 has a circular hole groove 4 on an outer circumferential surface parallel to the axis.
The lower locking ring 21 is provided with a polyhedron 7 and a clamping groove body 8 on the outer circumferential surface parallel to the shaft.
The lower lock ring 21 has a circular hole groove 4 on an outer circumferential surface parallel to the axis.
Preferably, the polyhedron 7 is a hexagon.
Preferably, the slot body 8 is formed by a circle and a rectangle.
Preferably, the round hole groove 4 is formed on the clamping groove body 8 and is combined with the clamping groove body 8.
The invention has the technical effects that: the locking ring is novel in structure, the axial thickness of the locking ring can be adjusted by the two pairs of spiral surfaces at the same time or different times, and the axial locking adjustable distance is larger than that of a traditional single spiral pair. The combined trough body and the hexagonal body are integrated into a whole, a hook-shaped wrench and a semicircular snap ring wrench can be used, large-torque common tools such as a large hexagonal wrench can also be used, even the aluminum plate and the hammer can be knocked to rotate, various modes and various tools can be selected, and the combined trough body and the hexagonal body are more convenient to use. The applicability is strong, the application range is wide, and the effect is good through practical use.
Drawings
FIG. 1 is a schematic view of a prior art round base locking ring;
FIG. 2 is a schematic view of a locking ring of the present invention;
FIG. 3 is a schematic view of an upper locking ring of the present invention;
FIG. 4 is a schematic view of a middle locking ring of the present invention;
FIG. 5 is a schematic view of the lower retaining ring of the present invention;
FIG. 6 is a schematic view of an example of use of a locking ring of the present invention;
in the figure, 1-locking ring, 2-through hole, 3-spiral surface, 4-round hole groove, 5-upper locking ring, 7-polyhedron, 8-clamping groove body, 9-rectangular groove, 11-first spiral surface, 12-middle locking ring, 19-middle upper spiral surface, 20-middle lower spiral surface, 21-lower locking ring, 27-second spiral surface, 28-sensor locking end surface, 29-actuator piston rod locking end surface and 30-actuator.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
the locking ring of the present invention is schematically shown in fig. 2, and includes an upper locking ring 5, a middle locking ring 12, and a lower locking ring 21; the schematic diagrams of the components of the locking rings are respectively shown in FIG. 3, FIG. 4 and FIG. 5; the polyhedron 7 is a hexagon and is uniformly distributed on the outer circumferential surface of each locking ring, the clamping groove body 8 is formed by a circle and a rectangle and is provided with a round hole groove 4, and the round hole groove 4 is compounded with the clamping groove body 8 and is arranged in the middle of a rectangular groove 9 of the clamping groove body 8. The middle upper spiral surface 19 and the middle lower spiral surface 20 of the middle locking ring 12 are different in rotation direction. The spiral surface 11 of the upper locking ring 5 and the middle and upper spiral surface 19 of the middle locking ring 12 form a pair of spiral pairs, and the spiral directions are the same. The spiral surface 27 of the lower locking ring 21 and the middle lower spiral surface 20 of the middle locking ring 12 form another pair of spiral pairs, and the spiral directions are the same and are viewed facing the respective spiral end surfaces.
Referring to fig. 6, an upper locking ring 5, a middle locking ring 12 and a lower locking ring 21 are inserted through a through hole 2 in a piston rod of an actuator 30 between a sensor locking end 28 and a piston rod locking end 29. The middle locking ring 12 is located between the upper locking ring 5 and the lower locking ring 21, and the middle and lower screw surfaces 19 and 20 are respectively opposite to the screw surfaces 11 and 27.
When the middle locking ring 12 is rotated by using a tool, the screw surface 11 of the upper locking ring 5 rotates relative to the middle upper screw surface 19 of the middle locking ring 12, the screw surface 27 of the lower locking ring 21 rotates relative to the middle lower screw surface 20, and the two pairs of screw surfaces change the axial thickness of the locking ring, so that the sensor is locked on the end of the actuator piston rod or unlocked. Two pairs of spiral surfaces rotate relatively at the same time, the axial thickness change distance of the locking ring is doubled, and the axial locking range is widened.
The upper locking ring 5 or the lower locking ring 21 can be rotated separately. The locking distance is adjusted through a pair of helicoids on one side. Tools such as hook-shaped wrenches, semicircular snap ring wrenches, ordinary wrenches, aluminum plates and hammers can all rotate the locking ring.
Each locking ring is integrated into a whole and has two shapes, the hexagonal body and the circular/rectangular clamping groove body are formed, the locking ring can be rotated by using a circular head hook-shaped spanner, or other tools which can use a rectangular clamping groove, such as a semicircular clamping ring spanner, are used, when local impact rotation is needed, the rectangular clamping groove can be knocked by using an aluminum plate and a hammer, the locking ring is rotated, clamping stagnation is eliminated or the locking ring is further locked, when large rotation torque is needed, the hexagonal body can be rotated by using large-torque common tools such as a spanner, and objects at two ends are locked or unlocked.

Claims (10)

1. A locking ring, characterized by: the locking ring comprises an upper locking ring (5), a middle locking ring (12) and a lower locking ring (21) which are sequentially connected together through a screw pair from top to bottom; the upper and lower surfaces of the middle locking ring (12) vertical to the shaft are provided with screw surfaces, the middle upper screw surface (19) above the middle locking ring is matched with the first screw surface (11) below the upper locking ring (5) to form a screw pair, and the middle lower screw surface (20) below the middle locking ring is matched with the second screw surface (27) of the lower locking ring (21) to form a screw pair; the upper locking ring (5), the middle locking ring (12) and the lower locking ring (21) are provided with through holes (2).
2. A locking ring as in claim 1, wherein: the upper locking ring (5) is provided with a polyhedron (7) and a clamping groove body (8) on the outer circumferential surface parallel to the shaft.
3. A locking ring as in claim 2, wherein: the upper locking ring (5) is provided with a circular hole groove (4) on the outer circumferential surface parallel to the shaft.
4. A locking ring as in claim 1, wherein: the middle locking ring (12) is provided with a polyhedron (7) and a clamping groove body (8) on the outer circumferential surface parallel to the shaft.
5. A locking ring according to claim 4, wherein: the middle locking ring (12) is provided with a circular hole groove (4) on the outer circumferential surface parallel to the axis.
6. A locking ring as in claim 1, wherein: the lower locking ring (21) is provided with a polyhedron (7) and a clamping groove body (8) on the outer circumferential surface parallel to the shaft.
7. A locking ring according to claim 6, wherein: the lower locking ring (21) has a circular hole groove (4) on the outer circumferential surface parallel to the axis.
8. A locking ring according to claim 2 or 4 or 6, wherein: the polyhedron (7) is a hexagon.
9. A locking ring according to claim 2 or 4 or 6, wherein: the clamping groove body (8) is composed of a circular shape and a rectangular shape.
10. A locking ring according to claim 3 or 5 or 7, wherein: the round hole groove (4) is arranged on the clamping groove body (8) and is combined with the clamping groove body (8).
CN201811533616.XA 2018-12-14 2018-12-14 Locking ring Active CN109519457B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811533616.XA CN109519457B (en) 2018-12-14 2018-12-14 Locking ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811533616.XA CN109519457B (en) 2018-12-14 2018-12-14 Locking ring

Publications (2)

Publication Number Publication Date
CN109519457A CN109519457A (en) 2019-03-26
CN109519457B true CN109519457B (en) 2021-03-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811533616.XA Active CN109519457B (en) 2018-12-14 2018-12-14 Locking ring

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204276599U (en) * 2014-09-18 2015-04-22 南京盛大重工机械有限公司 Bender turn round axial adjustment mechanism
CN205013482U (en) * 2015-06-11 2016-02-03 刘凤翼 From jack panel, bolt -up spare
CN205780190U (en) * 2016-05-30 2016-12-07 成都市欣欣高强度紧固件制造有限公司 A kind of high intensity anticreep studs assembly
CN207178428U (en) * 2017-09-08 2018-04-03 天津德泽金属制品有限公司 A kind of Aero-Space nut being easily installed

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204012619U (en) * 2014-08-26 2014-12-10 成都瑞联电气股份有限公司 A kind of cable locking joint that flexible pipe is installed
CN104454908A (en) * 2014-11-04 2015-03-25 贵州航天精工制造有限公司 Axial compression thread self-locking nut and closing-in method thereof
JP2016133217A (en) * 2015-01-15 2016-07-25 良三 太田 Lock structure of nut fastened to bolt
CN107120486A (en) * 2017-05-18 2017-09-01 潘汝锦 The flexible drill holder part of plugging into of stereoplasm tube

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204276599U (en) * 2014-09-18 2015-04-22 南京盛大重工机械有限公司 Bender turn round axial adjustment mechanism
CN205013482U (en) * 2015-06-11 2016-02-03 刘凤翼 From jack panel, bolt -up spare
CN205780190U (en) * 2016-05-30 2016-12-07 成都市欣欣高强度紧固件制造有限公司 A kind of high intensity anticreep studs assembly
CN207178428U (en) * 2017-09-08 2018-04-03 天津德泽金属制品有限公司 A kind of Aero-Space nut being easily installed

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