CN108994589A - A kind of Automatic-drawing head - Google Patents
A kind of Automatic-drawing head Download PDFInfo
- Publication number
- CN108994589A CN108994589A CN201810877717.2A CN201810877717A CN108994589A CN 108994589 A CN108994589 A CN 108994589A CN 201810877717 A CN201810877717 A CN 201810877717A CN 108994589 A CN108994589 A CN 108994589A
- Authority
- CN
- China
- Prior art keywords
- pull rod
- reduction gearbox
- stretching head
- sleeve
- gear
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000012423 maintenance Methods 0.000 claims abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/067—Bolt tensioners
Abstract
A kind of Automatic-drawing head, is made of stretching head and driving device.Stretching head is made of stretching head ontology, holddown spring, detection inductor and fixing device.Stretching head body upper part is pull rod, and lower part is spur gear, and maintenance nut is equipped in the middle part of pull rod, and holddown spring is set on washer, and detection inductor is set in pull rod top-portion apertures, and fixing device is set to pull rod or more.Lower part spur gear is internally threaded；Driving device is made of motor, reduction gearbox one and reduction gearbox two.One output shaft of reduction gearbox is connected with two input gear one of reduction gearbox, and input gear one is meshed with output gear two, and two side of output gear is located in bracing ring through groove, and is meshed with the spur gear being located on the inside of bracing ring through groove.Stretch pre-tighten during, stretching head automatic precession and can screw out pretension bolt, realize that Automatic-drawing pre-tightens under driving device drive, stretch pretensioning operation fast and easy, laborsaving, safe.
Description
Technical field
The present invention relates to a kind of stretcher stretching head, especially a kind of Automatic-drawing head.
Background technique
Currently, generally there are two types of structural shapes for stretching head used in stretcher.One kind is nut pattern, i.e., in oil cylinder piston
Between setting with pretension bolt match screw thread, piston directly connect with pretension bolt stretching preload；Another kind is swivel nut pattern, spiral shell
Set is internal to be equipped with the screw thread to match with pretension bolt, and swivel nut outer circle and oil cylinder piston inner hole match.Both stretching heads are stretching
When pretensioning operation, stretching head precession and back-out pretension bolt are completed by manual operations, and speed is slow, working efficiency is low, and only fits
For manual stretcher.
Summary of the invention
For deficiency existing for stretching head used in existing stretcher, the present invention provides a kind of Automatic-drawing head, by stretching head
It is formed with driving device.The stretching head is made of stretching head ontology, holddown spring, detection inductor and fixing device.It is described
Stretching head body upper part is pull rod, and lower part is spur gear.The pull rod is set among piston, is equipped in the middle part of pull rod in piston upper end
Maintenance nut, maintenance nut upper end are equipped with drag link sleeve, washer are equipped at the top of drag link sleeve, and the holddown spring is set on washer, institute
It states detection inductor to be set in pull rod top-portion apertures, the fixing device is set to pull rod set upper side and pull rod lower end, the spur gear
Inside is equipped with the screw thread to match with pretension bolt；The driving device is made of motor, reduction gearbox one and reduction gearbox two.The electricity
Machine is fixed on one top of reduction gearbox, and the reduction gearbox two is fixed on the outside of bracing ring through groove, one output shaft of reduction gearbox and reduction gearbox
Two input gears one are connected, and input gear one is meshed with output gear two, and two side of output gear is located at bracing ring through groove
It is interior, and be meshed with the spur gear being located on the inside of bracing ring.
The fixing device is made of annulus, sleeve and spring.The annulus is radially provided with multiple through-holes, the sleeve
In annulus through-hole, sleeve it is closed at one end, the other end open wide, the spring be set to sleeve in.
The beneficial effects of the present invention are: driving device can drive the automatic precession of stretching head under the control of detection inductor
With back-out pretension bolt, realize that Rapid stretching pre-tightens, pretensioning operation is high-efficient, can match with Automatic-drawing device, realizes that intelligence is pre-
Tightly.
Detailed description of the invention
Fig. 1 is longitudinal partial sectional view of the invention.
In figure: 10. stretching head ontologies, 11. holddown springs, 12. detection inductors, 13. fixing devices, 20. motors, 21.
Reduction gearbox one, 22. reduction gearboxes two, 101. pull rods, 102. spur gears, 103. maintenance nuts, 104. drag link sleeves, 105. washers,
106. hole, 107. screw threads, 130. annulus, 131. sleeves, 132. springs, 133. through-holes, 210. output shafts, 220. gears one,
221. gears two, 3. pistons, 4. bracing rings, 41. through grooves.
Specific embodiment
A kind of Automatic-drawing head, is made of stretching head and driving device.The stretching head is by stretching head ontology 10, compression bullet
Spring 11, detection inductor 12 and fixing device 13 form.10 top of stretching head ontology is pull rod 101, and lower part is spur gear
102.The pull rod 101 is set among piston 3, and 101 middle part of pull rod is equipped with maintenance nut 103, maintenance nut in 3 upper end of piston
103 upper ends are equipped with drag link sleeve 104, and washer 105 is equipped at the top of drag link sleeve 104, and the holddown spring 11 is set on washer 105, institute
It states detection inductor 12 to be set in 101 top-portion apertures 106 of pull rod, the fixing device 13 is set to 104 upper end of drag link sleeve and pull rod 101
Lower end is equipped with the screw thread 107 to match with pretension bolt inside the spur gear 102；The driving device is by motor 20, reduction gearbox
1 and reduction gearbox 2 22 form, the motor 20 is fixed on the top of reduction gearbox 1, and the reduction gearbox 2 22 is fixed on support
4 through groove, 41 outside is enclosed, one 21 output shaft 210 of reduction gearbox is connected with 2 22 input gear 1 of reduction gearbox, input gear one
220 are meshed with output gear 2 221, and 2 221 side of output gear is located in 4 through groove 41 of bracing ring, and be located at bracing ring 4
The spur gear 102 of 41 inside of through groove is meshed.
The fixing device 13 is made of annulus 130, sleeve 131 and spring 132.It is radially provided on the annulus 130 more
A through-hole 133, the sleeve 131 be set to 130 through-hole 133 of annulus in, sleeve 131 it is closed at one end, the other end open wide, the bullet
Spring 132 is set in sleeve 131.
When Automatic-drawing head works, under the control of detection inductor 12, driving device can drive stretching head ontology 10 certainly
Dynamic precession pretension bolt is realized to stretch and be pre-tightened, and is terminated stretching to pre-tighten, and pretension bolt is pre- next, and stretching head ontology 10 again can be automatic
Screw out pretension bolt.It prepares to pre-tighten next pretension bolt.
Claims (2)
1. a kind of Automatic-drawing head, is made of stretching head and driving device, it is characterised in that: the stretching head is by stretching head sheet
Body, holddown spring, detection inductor and fixing device composition, the stretching head body upper part are pull rod, and lower part is spur gear, institute
Pull rod is stated among piston, is equipped with maintenance nut in piston upper end in the middle part of pull rod, maintenance nut upper end is equipped with drag link sleeve, pull rod
Set top is equipped with washer, and the holddown spring is set on washer, and the detection inductor is set in pull rod top-portion apertures, the maintenance
Device is set to pull rod set upper side and pull rod lower end, is equipped with the screw thread to match with pretension bolt inside the spur gear；The driving
Device is made of motor, reduction gearbox one and reduction gearbox two, and the motor is fixed on one top of reduction gearbox, and the reduction gearbox two is fixed
On the outside of bracing ring through groove, one output shaft of reduction gearbox is connected with two input gear one of reduction gearbox, input gear one and output gear
Wheel two is meshed, and two side of output gear is located in bracing ring through groove, and mutually nibbles with the spur gear being located on the inside of bracing ring through groove
It closes.
2. a kind of Automatic-drawing head according to claim 1, it is characterised in that: the fixing device, by annulus, sleeve and
Spring composition, the annulus are radially provided with multiple through-holes, and the sleeve is set in annulus through-hole, sleeve it is closed at one end, it is another
End is opened wide, and the spring is set in sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810877717.2A CN108994589A (en) | 2018-08-03 | 2018-08-03 | A kind of Automatic-drawing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810877717.2A CN108994589A (en) | 2018-08-03 | 2018-08-03 | A kind of Automatic-drawing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108994589A true CN108994589A (en) | 2018-12-14 |
Family
ID=64595736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810877717.2A Pending CN108994589A (en) | 2018-08-03 | 2018-08-03 | A kind of Automatic-drawing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108994589A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702716A (en) * | 2020-06-28 | 2020-09-25 | 江苏核电有限公司 | Tensile laborsaving device of large-scale horizontal centrifugal pump kingbolt of nuclear power station |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110271798A1 (en) * | 2008-11-14 | 2011-11-10 | Wagner Vermogensverwaltungs- GMBH & Co.KG | Screw tensioning device |
| CN102267050A (en) * | 2011-01-25 | 2011-12-07 | 南通高盛机械制造有限公司 | Hydraulic pretightening device for automatic regroup bolts |
| CN202622705U (en) * | 2012-05-28 | 2012-12-26 | 宁波赛维思机械有限公司 | Bolt tensioner |
| CN103170833A (en) * | 2013-03-05 | 2013-06-26 | 马鞍山市三江机械有限公司 | Novel double-level tensioner |
| CN204353747U (en) * | 2014-12-29 | 2015-05-27 | 中国第一重型机械股份公司 | The full-automatic kingbolt stretching-machine of monomer |
| DE102014224213A1 (en) * | 2014-11-27 | 2016-06-02 | Schaeffler Technologies AG & Co. KG | Linear actuator with active clamping element |
| CN106736480A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of hydraulic elongator and its drawing process |
| CN107717429A (en) * | 2017-11-09 | 2018-02-23 | 大连泰凯工业有限公司 | Multistage super-pressure thin-walled hydraulic elongator for hub of wind power generator kingbolt |
| CN208854120U (en) * | 2018-08-03 | 2019-05-14 | 南通高盛机械制造有限公司 | A kind of Automatic-drawing head |
-
2018
- 2018-08-03 CN CN201810877717.2A patent/CN108994589A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110271798A1 (en) * | 2008-11-14 | 2011-11-10 | Wagner Vermogensverwaltungs- GMBH & Co.KG | Screw tensioning device |
| CN102267050A (en) * | 2011-01-25 | 2011-12-07 | 南通高盛机械制造有限公司 | Hydraulic pretightening device for automatic regroup bolts |
| CN202622705U (en) * | 2012-05-28 | 2012-12-26 | 宁波赛维思机械有限公司 | Bolt tensioner |
| CN103170833A (en) * | 2013-03-05 | 2013-06-26 | 马鞍山市三江机械有限公司 | Novel double-level tensioner |
| DE102014224213A1 (en) * | 2014-11-27 | 2016-06-02 | Schaeffler Technologies AG & Co. KG | Linear actuator with active clamping element |
| CN204353747U (en) * | 2014-12-29 | 2015-05-27 | 中国第一重型机械股份公司 | The full-automatic kingbolt stretching-machine of monomer |
| CN106736480A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of hydraulic elongator and its drawing process |
| CN107717429A (en) * | 2017-11-09 | 2018-02-23 | 大连泰凯工业有限公司 | Multistage super-pressure thin-walled hydraulic elongator for hub of wind power generator kingbolt |
| CN208854120U (en) * | 2018-08-03 | 2019-05-14 | 南通高盛机械制造有限公司 | A kind of Automatic-drawing head |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702716A (en) * | 2020-06-28 | 2020-09-25 | 江苏核电有限公司 | Tensile laborsaving device of large-scale horizontal centrifugal pump kingbolt of nuclear power station |
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