CN206769849U - A kind of thread screw on and-off machine very-short-reach clamping device - Google Patents
A kind of thread screw on and-off machine very-short-reach clamping device Download PDFInfo
- Publication number
- CN206769849U CN206769849U CN201720328072.8U CN201720328072U CN206769849U CN 206769849 U CN206769849 U CN 206769849U CN 201720328072 U CN201720328072 U CN 201720328072U CN 206769849 U CN206769849 U CN 206769849U
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- Prior art keywords
- short
- clamping
- reach
- jaw
- groove
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Abstract
The utility model provides a kind of thread screw on and-off machine very-short-reach clamping device, including：Some conventional clamping jaws, are arranged on the inside of main pincers and back-up tong, one end is connected with clamping cylinder piston, and a side wall sets mounting groove, and another side wall sets the first fixing groove；Some conventional clamping block teeth, are connected with the conventional jaw other end that clamps；Some very-short-reach clamp jaw, and the relatively conventional other end for clamping jaw sets link slot, and the end bottom sets the second fixing groove, and connection groove bottom sets connection through hole, and connection through hole forms interface channel with mounting groove, and a connection piece is inserted in interface channel；Some very-short-reach clamp block teeth, including connecting portion and the clamping section for being convexly equipped in connecting portion one end；Some shroudings, it is covered on first, second fixing groove openend.The clamping device, can be with quick-replaceable part when routinely clamping and very-short-reach clamping is used alternatingly, and reliably, conveniently, simply, safely, smart structural design, manufacturing cost is low, good in economic efficiency.
Description
Technical field
The utility model belongs to petroleum pipe fitting dismounting technical field, in particular it relates to which a kind of thread screw on and-off machine is pressed from both sides with very-short-reach
Tight device.
Background technology
Thread screw on and-off machine, or assembling and disassembling stand, it is a kind of threaded connector loading mechanization, is primarily adapted for use in oil field well pump, underground
Other threaded connectors such as instrument, oil pick-up tube oil pipe, pipe sleeve turn to match somebody with somebody and dismounting.
Existing thread screw on and-off machine structure is mainly made up of main pincers and back-up tong, and back-up tong is clamped body and do not rotated, main clamp body rotation,
It is threaded connection between body and body, due to being limited by main pincers, back-up tong side plate thickness etc., master, back-up tong clamping spacing are big,
Typically all reach more than 150 millimeters, due to drill and petroleum extraction toolses, such as packer, sand preventing tool structure relative compact, parts are not advised
Then, need main, back-up tong to clamp spacing during dismounting smaller, individual parts can clamped position and length limited, it is existing in the market
The conventional thread screw on and-off machine having（Assembling and disassembling stand）It is not met by requiring.
For thread screw on and-off machine very-short-reach clamp system, the current country is primarily present following patent document：
China Patent Publication No.：CN103758472A, a kind of thread screw on and-off machine very-short-reach clamp system is disclosed, is included
Support and hydraulic cylinder, support right side are fixedly installed engaging lug, and support centre is fixedly installed hydraulic cylinder, and hydraulic cylinder bottom leads to
Cross screw to be mutually fixedly connected with connector one end, the connector other end is hinged by one end of bearing pin and connecting rod one；Connecting rod one
The other end be hinged by bearing pin and Jaw plate assembly, the middle part of connecting rod one is provided with several adjustment holes, and adjustment hole passes through bearing pin
It is hinged with the one end of connecting rod two, the other end of connecting rod two is hinged by bearing pin and engaging lug.When using of the invention, solve and tear open
Master, back-up tong clamping spacing are small during dress, and the spacing can be contracted to 5 millimeters；Solving individual parts can clamped position and length
Controllability the problem of, saved cost of labor, protected some tool exterior surfaces not to be damaged.The present invention has structure letter
Single, it is reasonable to set, the advantages that low manufacture cost.
That patent describes being stretched using oil cylinder for power, power is delivered on jaw assembly by linkage, this
Kind mechanism can use in the case where moment of torsion is small, but have the disadvantage that：
1. when moment of torsion is big, connecting rod one, connecting rod two, bearing pin, jaw assembly can overall low-angle deformation and upset, cause jaw
The block teeth of plate assembly are unable to the occlusion of face tube surfaces, or even the simply angle occlusion body of the block teeth of a jaw assembly, so
If, the possibility of skidding greatly increases；
2. oil field user is when with thread screw on and-off machine, it is conventional clamp and very-short-reach clamp it is sometimes alternate with each other use, this is special
Connector, connecting rod one, connecting rod two, Jaw plate assembly, engaging lug, bearing pin, selection adjustment hole in the very-short-reach clamp system of profit,
These will be dismounted, and workload is big, and tired lock, influence operating efficiency；
3. during in order to adapt to Large Diameter Pipeline, jaw assembly must be away from axle center, due to being linkage, and at this moment connector is to twisting
Deduction axle center is moved, and the adjustment hole on connecting rod is can to adjust caliber, but is had to pass through to gesticulate to test to produce several times and worked,
Efficiency is too low, very inconvenient.
Utility model content
To solve above-mentioned problem, the purpose of this utility model is that provide a kind of thread screw on and-off machine is clamped with very-short-reach
Device, the clamping device, can be with quick-replaceable parts when routinely clamping and very-short-reach clamping is used alternatingly, reliable, side
Just, simply, safely, smart structural design, manufacturing cost is low, good in economic efficiency.
To reach above-mentioned purpose, the technical solution of the utility model is：
A kind of thread screw on and-off machine very-short-reach clamping device, the very-short-reach clamping device are respectively arranged at the main pincers of thread screw on and-off machine
In back-up tong, main pincers, back-up tong opposite face middle panel open up circular hole respectively, and circular hole circumferentially radially opens up some grooves respectively,
The very-short-reach clamping device includes：It is some it is conventional clamp jaws, be respectively arranged on the inside of main pincers and back-up tong, and respectively with institute
It is corresponding to state groove, one end is connected with clamping cylinder piston, and a mounting groove is offered along the vertical sidewall direction in the middle part of a side wall,
Another lower sidewall relative with the side wall offers one first fixing groove；It is some it is conventional clamp block teeth, respectively with the routine
The other end that jaw is clamped with respect to clamping cylinder piston connects；Some very-short-reach clamp jaw, and slip is embedded at the groove
It is interior, it is respectively arranged at the conventional side for clamping jaw and opening up mounting groove, its relatively conventional other end end face for clamping jaw
Direction of the middle part along the vertical end face offers a link slot, and direction of the end end face bottom along the vertical end face offers one the
Two fixing grooves, bottom surface along parallel to link slot open up direction provided with one installation chute, two side respectively with the groove both sides
Wall contacts, and the connection groove bottom opens up direction along link slot and connected provided with a connection through hole, the connection through hole with the mounting groove
Logical to form a connection channel, a connection piece is inserted in the interface channel, is formed very-short-reach clamping jaw and is clamped jaw with conventional
The connection of plate；Some very-short-reach clamp block teeth, including connecting portion and are convexly equipped in the clamping section of described connecting portion one end, institute respectively
Connecting portion is stated to be embedded in installation chute；Some shroudings, the first, second fixing groove openend is covered on respectively.
Further, the main pincers panel and the quantity of back-up tong panel surface groove are respectively 4, in cross arrangement,
Accordingly, the routine on the main pincers and back-up tong clamps jaw, routine clamps block teeth, very-short-reach clamps jaw, ultrashort
The quantity that distance clamps block teeth is respectively 4.
Further, the panel groove is provided with wearing layer with the position that very-short-reach clamping jaw two side contacts；Institute
It is slideway or wear-resistant pad to state wearing layer.
Further, the conventional clamping jaw is respectively separated with the face that very-short-reach clamping jaw contacts and sets some cards
Dovetail groove is connect, the conventional jaw that clamps passes through the mutual clamping of the clamping dovetail groove, fastening with very-short-reach clamping jaw.
Further, the conventional some swallows being intervally arranged of one end setting for clamping jaw and conventional clamping block teeth and being connected
Stern notch, the conventional block teeth that clamp are connected by dovetail groove with the conventional jaw that clamps.
Further, the conventional jaw that clamps opens up one end bottom of mounting groove provided with symmetrical with first fixing groove
, the 3rd fixing groove for installing shrouding, the shrouding is located at the first ~ the 3rd fixing groove by shrouding screw cap.
Further, the conventional jaw that clamps is connected by a connecting bolt with clamping cylinder piston.
Further, circumferentially shape is set and shrouding respectively for second fixing groove and/or the 3rd fixing groove openend
The storage tank that shape is engaged, shrouding are embedded in the storage tank.
Further, it is swallow-tail form that the very-short-reach, which clamps jaw installation chute section,.
Further, the very-short-reach clamps the relatively conventional jaw one end end face that clamps of block teeth connecting portion and clamped with conventional
Block teeth end face abuts；The connector is bolt.
The beneficial effects of the utility model are：
The very-short-reach clamping device, consider that bite is from the axis perpendicular line of oil cylinder when very-short-reach clamps
Distance is more short better, can so reduce the upset and deformation of very-short-reach hold assembly, preferably transmits moment of torsion, improves folder
Tight effect；
By routinely clamping jaw side setting very-short-reach clamping jaw, link slot, connection through hole and installation flute profile
Into interface channel, formed very-short-reach clamp jaw and it is conventional clamp being detachably connected between jaw, pressed from both sides by very-short-reach
Tight jaw coordinates very-short-reach to clamp block teeth completion very-short-reach clamping, is clamped in very-short-reach and conventional clamp is used alternatingly
When, very-short-reach quickly can be clamped into jaw and be disassembled together with very-short-reach clamping block teeth, from routinely clamping with jaw
The conventional block teeth that clamp carry out conventional clamping, realize and flexibly change part solve the very-short-reach clamping problems of existing thread screw on and-off machine,
Operating efficiency and product quality and service life increase are ensure that, so as to reduce enterprise's production cost input, makes enterprise in city
Advantage, low, easy to maintenance, safe and reliable, the easy popularization of production cost are remained in the competition of field；
Very-short-reach clamps jaw and is mutually clamped, fastened by dovetail groove with conventional clamping jaw contact surface, is connected
The use of part, ensure that very-short-reach clamps jaw and the conventional firmness for clamping jaw and being connected, ensure that clamp operation is smoothed out；
Very-short-reach clamps jaw and panel groove inner wall contact surface and sets wearing layer, reduce very-short-reach clamp jaw with
Friction between panel groove, abrasion is prevented in very-short-reach clamping process, is increased the service life, reduce safeguard into
This；
The design of 3rd fixing groove so that when very-short-reach clamping jaw is pulled down, install shrouding in time, ensure conventional clamp
Be smoothed out；
The structure design of second fixing groove and/or the 3rd fixing groove openend storage tank so that whether short distance
From still conventional clamping is clamped, shrouding can be embedded at very-short-reach and clamp in jaw or conventional clamping jaw, further shortening
Clamping distance；
Described device clamping distance can as little as 5mm.
Brief description of the drawings
Fig. 1 is to be shown using a kind of thread screw on and-off machine structure of thread screw on and-off machine very-short-reach clamping device provided by the utility model
It is intended to；
Fig. 2 be in Fig. 1 E to structural representation；
Fig. 3 is a kind of part-structure schematic diagram of thread screw on and-off machine very-short-reach clamping device provided by the utility model；
Fig. 4 is Fig. 3 left view；
Fig. 5 is Fig. 3 top view.
Embodiment
The utility model is described further below by specific embodiment, but embodiment is not intended to limit this practicality newly
The protection domain of type.
1 ~ Fig. 5 of reference picture, a kind of thread screw on and-off machine very-short-reach clamping device described in the utility model, the very-short-reach
Clamping device is respectively arranged in the main pincers 101 of thread screw on and-off machine 100 and back-up tong 102, main pincers 101, the opposite face of back-up tong 102（That is institute in Fig. 1
The A faces and B faces shown）The middle part of panel 103 opens up circular hole 104 respectively, and circular hole 104 is circumferential radially to open up some grooves 105 respectively,
The very-short-reach clamping device includes：Some conventional clamping jaws 1, main pincers 101 and back-up tong 102 inner side is respectively arranged at, and
Corresponding with the groove 105 respectively, one end is connected with clamping cylinder piston 106, along the vertical sidewall direction in the middle part of a side wall
A mounting groove 11 is offered, another lower sidewall relative with the side wall offers one first fixing groove 12；Some conventional clampings
Block teeth 2, it is connected respectively with the conventional jaw 1 that clamps with respect to the other end of clamping cylinder piston 106；Some very-short-reach clamp
Jaw 3, slip are embedded in the groove 105, are respectively arranged at the conventional side for clamping jaw 1 and opening up mounting groove 11,
A link slot 31 is offered along the direction of the vertical end face in the middle part of its relatively conventional other end end face for clamping jaw 1, the end end
Direction of the face bottom along the vertical end face offers one second fixing groove 13, and bottom surface edge opens up direction parallel to link slot 31 and is provided with
One installation chute（It is not shown）, two side contacts with the both sides inwall of groove 105 respectively, and the bottom surface of link slot 31 is along connection
Groove 31 opens up direction and connects to form a connection channel 33 with the mounting groove 11 provided with a connection through hole 32, the connection through hole 32,
A connection piece 4 is inserted in the interface channel 33, is formed very-short-reach and is clamped jaw 3 and the conventional connection for clamping jaw 1；It is some
Very-short-reach clamps block teeth 5, including connecting portion 51 and is convexly equipped in the clamping section 52 of described one end of connecting portion 51, the connection respectively
Portion 51 is embedded in installation chute；Some shroudings 6, first, second fixing groove 12,13 openends are covered on respectively.
Further, the quantity of 101 panels 103 of the main pincers and the surface groove 105 of 102 panel of back-up tong 103 is respectively 4
It is individual, in cross arrangement, accordingly, conventional clamping jaw 1, conventional clamping block teeth on the main pincers 101 and back-up tong 102
2nd, very-short-reach clamps jaw 3, the quantity of very-short-reach clamping block teeth 5 is respectively 4.
Further, the groove 105 of panel 103 is provided with resistance to the position that very-short-reach clamping jaw 3 two side contacts
Grind layer 107；The wearing layer 107 is slideway（Referring to Fig. 2）Or wear-resistant pad（It is not shown）.
Further, it is some that the face that the routine clamps jaw 1 with very-short-reach clamping jaw 3 contacts is respectively separated setting
Clamping dovetail groove 7, the conventional jaw 1 that clamps pass through the 7 mutual clamping of clamping dovetail groove, fastening with very-short-reach clamping jaw 3.
Further, the conventional jaw 1 that clamps clamps that one end setting that block teeth 2 are connected is some to be intervally arranged with conventional
Dovetail groove（It is not shown）, routinely clamp block teeth 2 and be connected by dovetail groove with the conventional jaw 1 that clamps.
Further, one end bottom that the conventional clamping jaw 1 opens up mounting groove 11 is provided with and first fixing groove
12 is symmetrical, the 3rd fixing groove 14 for installing shrouding 6, and the shrouding 6 is covered on the first ~ the 3rd by shrouding screw 61 and consolidated
Determine groove 12 ~ 14.
Further, the conventional jaw 1 that clamps is connected by a connecting bolt 8 with clamping cylinder piston 106.
Further, in the utility model another embodiment, the fixing groove 14 of the second fixing groove 13 and/or the 3rd
Circumferentially shape sets the storage tank being engaged with the shape of shrouding 6 respectively for openend（It is not shown）, shrouding 6 is embedded at the storage tank
It is interior.
It is arranged such, whether very-short-reach clamps or conventional clamping, shrouding 6 can be embedded at very-short-reach and clamp jaw
In plate or conventional clamping jaw, further shorten clamping distance.
Further, it is swallow-tail form that the very-short-reach, which clamps jaw 3 and installs chute section,.
Further, the very-short-reach clamps 5 connecting portion of block teeth, the 51 relatively conventional clamping one end end face of jaw 1 and routine
The end face of block teeth 2 is clamped to abut.
Further, the connector 4 is bolt.
A kind of thread screw on and-off machine very-short-reach clamping device described in the utility model, consider when very-short-reach clamps, press from both sides
It is a little more short better from a distance from the axis perpendicular line of oil cylinder to hold, and can so reduce the upset and change of very-short-reach hold assembly
Shape, moment of torsion is preferably transmitted, improve clamping effect, specific clamp operation mode is as follows：
By taking back-up tong 102 as an example, clamping device assembling and clamping mode repeat no more with back-up tong 102 in main pincers 101.
When carrying out conventional clamp, conventional clamping jaw 1 is fixed on the clamping cylinder of back-up tong 102 by connecting bolt 8
On piston 106, the conventional block teeth 2 that clamp are clamped in jaw 1 mounted in conventional, and two is fixed by the first fixing groove the 12, the 3rd respectively
Groove 14 is sealed with shrouding 6, shrouding 6 is fixed on conventional clamping jaw 1 by shrouding screw 61, clamping cylinder piston 106 drives
The dynamic conventional jaw 1 that clamps drives the conventional block teeth 2 that clamp to carry out conventional clamping to pipe fitting.
Back-up tong 102,101 this respect structures of main pincers are the same, so all clamp body, can normally be worked.
When carrying out very-short-reach clamping, the shrouding 6 being installed in the 3rd fixing groove 14 is pulled down, passes through connector 4（Spiral shell
Bolt）Very-short-reach is clamped into jaw 3 to connect with the conventional jaw 1 that clamps, and very-short-reach clamps jaw 3 and clamps jaw 1 with conventional
Contact jaw is mutually twisted by clamping dovetail groove 7, clamping, and the shrouding 6 pulled down is installed in into the second fixation by shrouding screw 61
In groove 13, because very-short-reach clamps the protrusion design of the clamping section 52 of block teeth 5, it is thicker than the conventional block teeth 2 that clamp, and clamping cylinder is lived
The conventional clamping jaw 1 of the driving of plug 106 drives very-short-reach to clamp jaw 3 and clamps block teeth 5 along the groove of panel 103 together with very-short-reach
105 wearing layers 107 slide, progress very-short-reach clamping, and in sliding process, very-short-reach clamps the clamping section 52 of block teeth 5 and first bitten
Body, because the conventional jaw 1 and very-short-reach clamping jaw 3 of clamping mutually is fastened by the clamping dovetail groove 7 of itself, and
It is by connector 4 that very-short-reach, which clamps jaw 3,（Bolt）It is fixed on conventional clamping jaw 1, such structure is easy to offset
Very-short-reach clamps the clamping section 52 of block teeth 5 and bites caused moment of flexure after body, makes whole very-short-reach clamping part indeformable, carries
High clamping reliability.
Back-up tong 102, main pincers 101 are all to have such structure, and back-up tong 102 clamps body, are formed and turned round under the main rotation of pincers 101
Square.
The purpose so designed, referring to Fig. 1, in very-short-reach clamping process, the very-short-reach of back-up tong 102 is set to clamp tooth
Block 5 is close to A faces, makes the very-short-reach clamping block teeth 5 of main pincers 101 close to B faces, is so easy to clamp the pipe of very-short-reach
Body, solves production problem.
In order to reduce the friction between the very-short-reach clamping two side of jaw 3 and the inwall of 103 groove of panel 105, add
Wearing layer 107（Slideway）, it is high-abrasive material, ensures that very-short-reach clamps jaw 3 and the groove 105 of panel 103 is not worn.
After very-short-reach clamping is carried out, such as following shrouding screw 61 that carry out conventional clamping, unclamp the left side, envelope is taken down
6, remove very-short-reach and clamp block teeth 5, unclamp connector 4, then remove very-short-reach and clamp jaw 3, then pass through shrouding screw
61 shroudings 6 are fixed in conventional the 3rd fixing groove 14 for clamping jaw 3, you can carry out conventional clamping.
It should be noted that above example is only illustrating the technical solution of the utility model and unrestricted.Although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those within the art that, can be to reality
Modified with new technical scheme or equivalent substitution, without departing from the scope of technical solutions of the utility model, it all should
Cover in right of the present utility model.
Claims (10)
1. a kind of thread screw on and-off machine very-short-reach clamping device, it is characterised in that the very-short-reach clamping device is respectively arranged at
In the main pincers of thread screw on and-off machine and back-up tong, main pincers, back-up tong opposite face middle panel open up circular hole respectively, and circular hole circumferentially radially opens up respectively
Some grooves, the very-short-reach clamping device include：
Some conventional clamping jaws, are respectively arranged on the inside of main pincers and back-up tong, and corresponding with the groove respectively, and one end is with pressing from both sides
Locking oil cylinder piston connects, and offers a mounting groove along the vertical sidewall direction in the middle part of a side wall, the opposite side relative with the side wall
Wall bottom offers one first fixing groove；
The other end connection of some conventional clamping block teeth, respectively clamping cylinder piston relative with the routine clamping jaw；
Some very-short-reach clamp jaw, and slip is embedded in the groove, are respectively arranged at the conventional jaw that clamps and open up
The side of mounting groove, its direction of relatively conventional other end end face middle part for clamping jaw along the vertical end face offer a connection
Groove, direction of the end end face bottom along the vertical end face offer one second fixing groove, and bottom surface is along parallel to the link slot side of opening up
Contacted respectively with groove both sides inwall to provided with an installation chute, two side, the connection groove bottom opens up along link slot
Direction is provided with a connection through hole, and the connection through hole connects to form a connection channel with the mounting groove, and a connection piece is inserted in this
In interface channel, form very-short-reach and clamp jaw and the conventional connection for clamping jaw；
Some very-short-reach clamp block teeth, including connecting portion and are convexly equipped in the clamping section of described connecting portion one end, the company respectively
Socket part is embedded in installation chute；
Some shroudings, the first, second fixing groove openend is covered on respectively.
A kind of 2. thread screw on and-off machine very-short-reach clamping device according to claim 1, it is characterised in that the main pincers panel
Quantity with back-up tong panel surface groove is respectively 4, in cross arrangement, accordingly, on the main pincers and back-up tong
The quantity that conventional clamping jaw, conventional clamping block teeth, very-short-reach clamping jaw, very-short-reach clamp block teeth is respectively 4.
A kind of 3. thread screw on and-off machine very-short-reach clamping device according to claim 1, it is characterised in that the panel groove
The position contacted with very-short-reach clamping jaw two side is provided with wearing layer；The wearing layer is slideway or wear-resistant pad.
A kind of 4. thread screw on and-off machine very-short-reach clamping device according to claim 1, it is characterised in that the conventional clamping
Jaw is respectively separated with the face that very-short-reach clamping jaw contacts and sets some clamping dovetail grooves, conventional to clamp jaw and short distance
Pass through the mutual clamping of the clamping dovetail groove, fastening from jaw is clamped.
A kind of 5. thread screw on and-off machine very-short-reach clamping device according to claim 1, it is characterised in that the conventional clamping
Jaw and it is conventional clamp one end that block teeth be connecteds some dovetail grooves being intervally arranged be set, it is conventional clamp block teeth by dovetail groove and
The conventional jaw that clamps connects.
A kind of 6. thread screw on and-off machine very-short-reach clamping device according to claim 1, it is characterised in that the conventional clamping
One end bottom that jaw opens up mounting groove is provided with and first fixing groove is symmetrical, the 3rd fixing groove for installing shrouding,
The shrouding is located at the first ~ the 3rd fixing groove by shrouding screw cap.
A kind of 7. thread screw on and-off machine very-short-reach clamping device according to any one of claim 1 ~ 6, it is characterised in that institute
The conventional jaw that clamps is stated to be connected with clamping cylinder piston by a connecting bolt.
8. a kind of thread screw on and-off machine very-short-reach clamping device according to claim 6, it is characterised in that described second fixes
Circumferentially shape sets the storage tank being engaged with shrouding shape respectively for groove and/or the 3rd fixing groove openend, and shrouding is embedded at
In the storage tank.
A kind of 9. thread screw on and-off machine very-short-reach clamping device according to claim 1, it is characterised in that the very-short-reach
It is swallow-tail form to clamp jaw installation chute section.
A kind of 10. thread screw on and-off machine very-short-reach clamping device according to claim 1, it is characterised in that the short distance
Abutted from the relatively conventional jaw one end end face that clamps of block teeth connecting portion is clamped with the conventional block teeth end face that clamps；The connector is spiral shell
Bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328072.8U CN206769849U (en) | 2017-03-31 | 2017-03-31 | A kind of thread screw on and-off machine very-short-reach clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328072.8U CN206769849U (en) | 2017-03-31 | 2017-03-31 | A kind of thread screw on and-off machine very-short-reach clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206769849U true CN206769849U (en) | 2017-12-19 |
Family
ID=60630936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720328072.8U Withdrawn - After Issue CN206769849U (en) | 2017-03-31 | 2017-03-31 | A kind of thread screw on and-off machine very-short-reach clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206769849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837215A (en) * | 2017-03-31 | 2017-06-13 | 江苏申利达机械制造有限公司 | A kind of thread screw on and-off machine very-short-reach clamping device |
| CN112253019A (en) * | 2020-11-16 | 2021-01-22 | 吉林大学 | Automatic releasing mechanism of self-balancing continuous screwing-off drill rod screw thread device |
-
2017
- 2017-03-31 CN CN201720328072.8U patent/CN206769849U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837215A (en) * | 2017-03-31 | 2017-06-13 | 江苏申利达机械制造有限公司 | A kind of thread screw on and-off machine very-short-reach clamping device |
| CN112253019A (en) * | 2020-11-16 | 2021-01-22 | 吉林大学 | Automatic releasing mechanism of self-balancing continuous screwing-off drill rod screw thread device |
| CN112253019B (en) * | 2020-11-16 | 2022-07-01 | 吉林大学 | Automatic releasing mechanism of self-balancing continuous screwing-off drill rod screw thread device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171219 Effective date of abandoning: 20181221 |
|
| AV01 | Patent right actively abandoned |