CN205908608U - Improve square nut that forms by tensile round nut - Google Patents

Improve square nut that forms by tensile round nut Download PDF

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Publication number
CN205908608U
CN205908608U CN201620922748.1U CN201620922748U CN205908608U CN 205908608 U CN205908608 U CN 205908608U CN 201620922748 U CN201620922748 U CN 201620922748U CN 205908608 U CN205908608 U CN 205908608U
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CN
China
Prior art keywords
nut
hole
round nut
screw
head
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.)
Active
Application number
CN201620922748.1U
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Chinese (zh)
Inventor
张承俊
孙长江
王宏程
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.)
China Yangtze Power Co Ltd
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China Yangtze Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Yangtze Power Co Ltd filed Critical China Yangtze Power Co Ltd
Priority to CN201620922748.1U priority Critical patent/CN205908608U/en
Application granted granted Critical
Publication of CN205908608U publication Critical patent/CN205908608U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an improve square nut that forms by tensile round nut, it is including tensile screw rod, install the round nut through screw -thread fit on the tensile screw rod, the outside cover of round nut is equipped with the hexagon head nut, the top of hexagon head nut is provided with the shirt rim, the center processing of shirt rim has the centre bore, the threaded hole of outer fringe equipartition processing of hexagon head nut, the axial lead of screw hole intersects with the axial lead of tensile screw rod, processing has the locking pin hole on the round nut, the the central axis in locking pin hole and the coincidence of the axial lead of screw hole, threaded hole portion installs holding screw, cooperate in holding screw's head and the locking pin hole in the round nut outer fringe. This square nut can be suitable for the dismantlement and the installation of tensile round nut in all medium -and -large -sized mechanical products, and then has improved dismouting efficiency, has reduced dismouting intensity.

Description

A kind of square nut being improved by stretching round nut
Technical field
This utility model is a kind of frock that stretching round nut is changed into square nut, is suitable for all big-and-middle-sized engineering goods Middle stretching the removing and installing of round nut.
Background technology
Stretching round nut passes through the high voltage power of bolt tension device, and the elastic amplitude being allowed using material, in its elasticity By bolt tension in deformed area, thus reaching fastening or the purpose loosening, because the reliability of its coupling assembly is high, the damage to equipment Bad property is little and be widely used in the operating areas such as each big-and-middle-sized engineering goods assembling, the severe, limited space in bad border.
Stretching round nut, as the fastening locking piece of equipment, has a very important role in production development, extensive It is applied to the various industries such as railway, bridge, electric power, plant equipment, operating mode.Traditional equipment protection is the surface in bolt and nut Smear antirust paint, antirust oil, insullac etc., but equipment is exposed for a long time, due to extraneous weather and temperature change, protective paint The come off oxidation and rusting leading to bolt and nut and bolt and nut surface attachment miscellaneous in a large number slag, cause bolt and nut to be difficult to tear open Remove, particularly stretch round nut, so that bolt is elongated in its regime of elastic deformation when stretching device applies external force to bolt, nut Can depart from equipment contact surface and come, rotating round nut by metal driving lever makes it loosen, until round nut does not possess fastening In lock function, the now corrosion of bolt and screw thread, the miscellaneous in a large number slag of attachment brings huge puzzlement for the dismantlement work of round nut, It is plant maintenance and service work brings inconvenience.
Utility model content
The purpose of this utility model is to overcome the shortcomings of to provide one kind in prior art by stretching round nut improvement The square nut becoming, this square nut can be suitable in all medium-and-large-sized engineering goods and stretch removing and installing of round nut, Jin Erti High disassembly efficiency, reduces dismounting intensity.
In order to solve above-mentioned technical problem, the utility model proposes technical scheme below: one kind is improved by stretching round nut Square nut, it include stretch screw rod, on described stretching screw rod pass through screw thread coordinate round nut is installed, described round nut Outer cover equipped with hex-head nut, the top of described hex-head nut is provided with shirt rim, during the center of described shirt rim is machined with Heart hole, the outer rim of described hex-head nut is uniformly threaded hole, the axle center of the axial line of described screwed hole and stretching screw rod Line intersects, and described round nut is machined with tightening pin-and-hole, and the axial line of the central axis of described tightening pin-and-hole and screwed hole overlaps, Holding screw is installed inside described screwed hole, the head of described holding screw is matched with the tightening pin-and-hole in round nut outer rim Close.
The afterbody of described holding screw is machined with and screws draw-in groove.
The head of described holding screw match with tightening pin-and-hole one section is light shaft part, and afterbody is closed with corresponding threaded holes One section is thread segment.
The length of described holding screw is more than the depth of tightening pin-and-hole, less than the total depth of tightening pin-and-hole and screwed hole.
This utility model has the advantages that:
1st, pass through the outside suit hex-head nut in round nut, and by holding screw by hex-head nut and circle spiral shell Mother between be fixedly linked it is ensured that round nut in installation process enhanced convenience it is only necessary to by spanner rotation turret head spiral shell Female, greatly save required moment in installation process, improve the installation strength of round nut, reduce installation process In damage to round nut outer surface, and the hex-head nut of outside can be disassembled after the installation is complete.
2nd, round nut can be effectively protected by arranging shirt rim, prevent debris from entering into round nut and stretching spiral shell In the matching thread of bar, prevent it from thread joint face is caused damage.
3rd, the connection that can be improved between hex-head nut and round nut by uniform multiple uniform holding screw is strong Degree, and then ensure that round nut is effectively installed.
4th, when needing round nut is dismounted it is only necessary to hex-head nut be sleeved on again the outside of round nut, Then hex-head nut and round nut are fixed by holding screw, relend and help the instruments such as spanner to rotate hex-head nut, and then Round nut is driven by hex-head nut, realizes the dismounting operation to round nut, improve disassembly efficiency.
Brief description
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the half sectional view of this utility model assembling structure.
Fig. 2 is the top view of this utility model hex-head nut.
Fig. 3 is a-a sectional view in this utility model Fig. 2.
In figure: centre bore 1, shirt rim 2, nut cavity 3, screwed hole 4, screw draw-in groove 5, holding screw 6, tightening pin-and-hole 7, circle Nut 8, hex-head nut 9, stretching screw rod 10.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further.
As Fig. 1-3, a kind of square nut being improved by stretching round nut, it includes stretching screw rod 10, described stretching spiral shell On bar 10, round nut 8 is provided with by screw thread cooperation, the outer cover of described round nut 8 is equipped with hex-head nut 9, described turret head The top of nut 9 is provided with shirt rim 2, and the center of described shirt rim 2 is machined with centre bore 1, and the outer rim of described hex-head nut 9 is uniform It is threaded hole 4, the axial line of the axial line of described screwed hole 4 and stretching screw rod 10 intersects, and described round nut 8 is machined with Tightening pin-and-hole 7, the axial line of the central axis of described tightening pin-and-hole 7 and screwed hole 4 overlaps, and is provided with inside described screwed hole 4 Holding screw 6, the head of described holding screw 6 is matched with the tightening pin-and-hole 7 in round nut 8 outer rim.Because equipment is daily anti- Shield is operated in smears insullac, antirust oil, antirust paint etc. to equipment bolt screw surface, and equipment leaks outside for a long time, protection Coating shedding bolt and nut oxidation and rusting, the miscellaneous in a large number slag of bolt and nut surface attachment, the dismounting for stretching round nut brings huge Big puzzlement.By above-mentioned structure design, it is set with hex-head nut 9 in the outer surface of round nut 8, unloading process passes through rotation Turn the dismounting operation that hex-head nut 9 just can complete round nut 8, and then improve work efficiency.
Further, the afterbody of described holding screw 6 is machined with and screws draw-in groove 5.Can easily be entered by spiral channel 5 The installation and removal of row holding screw 6, and then ensure that the cooperation between round nut 8 and hex-head nut 9 is installed.
Further, the head of described holding screw 6 match with tightening pin-and-hole 7 a section is light shaft part, afterbody and spiral shell Pit 4 match one section is thread segment.Ensure that holding screw 6 can be by hex-head nut by arranging the different structure in two ends 9 outsides being fixed on round nut 8, improve installation effectiveness.
Further, the length of described holding screw 6 is more than the depth of tightening pin-and-hole 7, less than tightening pin-and-hole 7 and screwed hole 4 total depth.
Work process of the present utility model and operation principle are:
After stretching round nut 8 discharges bolt load by stretching device, hex-head nut 9 is placed in stretching round nut 8 Top simultaneously adjusts hex-head nut 9 and makes six screwed hole hole hearts consistent with the metal driving lever hole heart of round nut 8, respectively rotation tightening The whole clamping round nut 8 of 6 to six holding screws of screw 6, under the locking of six holding screws 6 acts on, to hex-head nut 9 Operation be operation to stretching round nut 8, now by the conventional Work tool adjustable wrench of hex-head nut dismounting, tap and pull Handss etc. can convenient and swift carry out to round nut dismounting work, is plant maintenance and service work offers convenience.
By above-mentioned description, those skilled in the art completely can be without departing from this utility model technological thought In the range of, carry out various change and modification all within protection domain of the present utility model.Of the present utility model most Matters, belong to the common knowledge of those skilled in the art.

Claims (4)

1. a kind of by stretching round nut improve square nut it is characterised in that: it include stretch screw rod (10), described stretching Screw rod (10) is upper to be passed through screw thread and coordinates to be provided with round nut (8), the outer cover of described round nut (8) equipped with hex-head nut (9), The top of described hex-head nut (9) is provided with shirt rim (2), and the center of described shirt rim (2) is machined with centre bore (1), and described six The outer rim of angle head nut (9) is uniformly threaded hole (4), the axle of the axial line of described screwed hole (4) and stretching screw rod (10) Heart line intersects, and described round nut (8) is machined with tightening pin-and-hole (7), the central axis of described tightening pin-and-hole (7) and screwed hole (4) axial line overlaps, and is provided with holding screw (6), the head of described holding screw (6) and circle inside described screwed hole (4) Tightening pin-and-hole (7) in nut (8) outer rim matches.
2. according to claim 1 a kind of by stretching round nut improve square nut it is characterised in that: described tightening The afterbody of screw (6) is machined with and screws draw-in groove (5).
3. according to claim 1 a kind of by stretching round nut improve square nut it is characterised in that: described tightening The head of screw (6) match with tightening pin-and-hole (7) one section is light shaft part, and match with screwed hole (4) one section of afterbody is Thread segment.
4. according to claim 3 a kind of by stretching round nut improve square nut it is characterised in that: described tightening The length of screw (6) is more than the depth of tightening pin-and-hole (7), less than the total depth of tightening pin-and-hole (7) and screwed hole (4).
CN201620922748.1U 2016-08-23 2016-08-23 Improve square nut that forms by tensile round nut Active CN205908608U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620922748.1U CN205908608U (en) 2016-08-23 2016-08-23 Improve square nut that forms by tensile round nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620922748.1U CN205908608U (en) 2016-08-23 2016-08-23 Improve square nut that forms by tensile round nut

Publications (1)

Publication Number Publication Date
CN205908608U true CN205908608U (en) 2017-01-25

Family

ID=57801461

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620922748.1U Active CN205908608U (en) 2016-08-23 2016-08-23 Improve square nut that forms by tensile round nut

Country Status (1)

Country Link
CN (1) CN205908608U (en)

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