CN104589259A - Torque spanner - Google Patents
Torque spanner Download PDFInfo
- Publication number
- CN104589259A CN104589259A CN201410846467.8A CN201410846467A CN104589259A CN 104589259 A CN104589259 A CN 104589259A CN 201410846467 A CN201410846467 A CN 201410846467A CN 104589259 A CN104589259 A CN 104589259A
- Authority
- CN
- China
- Prior art keywords
- support
- roller
- spanner body
- support arms
- bearing pin
- 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
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
- B25B21/004—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type
- B25B21/005—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type driven by a radially acting hydraulic or pneumatic piston
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention provides a torque spanner, which comprises a hydraulic oil cylinder, a connecting head, a sleeve spanner body, a support frame and a plurality of rolling wheels, wherein the connecting head is connected and fixed with the sleeve spanner body and the hydraulic oil cylinder; the support frame is provided with three support arms; the three support arms are respectively connected with the hydraulic oil cylinder, the sleeve spanner body and the rolling wheels; the rolling wheels have different heights; each rolling wheel can be respectively installed and fixed with the support arms of the support frame through third pin shafts; the sleeve spanner body is provided with a plurality of pin shaft holes, and the pin shaft holes are respectively anastomotic with second pin shafts. Compared with a traditional spanner, the torque spanner has the advantages that one fulcrum is added, and the sleeve spanner body is more stable in a screw bolt screwing process; the position of the support frame is changed through converting the connection of the support arms with different pin shaft holes, and the installation requirement of more different-diameter screw bolts on a flange can be met; through replacing the rolling wheels with different diameters, the installation requirement of screw bolts arranged on flanges in different heights can be met.
Description
Technical field
The present invention relates to a kind of torque wrench, it can realize, to the pretension of the bolt on ring flange, belonging to field of mechanical technique.
Background technology
Torque wrench is again torque spanner, torque spanner, moment of torsion adjustable spanner, is the one of spanner, is generally divided into two classes: electrokinetic moment spanner and manual torque spanner.
The main feature of torque wrench is exactly: can set moment of torsion, and moment of torsion is adjustable.
The application of torque wrench:
Torque wrench is exactly fastening bolt, and high-strength bolt can be divided into torque-shear type and large hexangle type two kinds, and GB torque-shear type high-strength bolt is M16, M20, M22, M24 tetra-kinds, also has now M27, M30 two kinds of non-GB; GB high-strength bolts is that M16, M20, M22, M24, M27, M30 etc. are several.General for high-strength bolt fastening all want first just tight more eventually not tightly, and often walk and all need strict torque demand.The first of high-strength bolts tightly and eventually tightly all must use constant torque wrench.
Torque wrench not only can be just tight but also can be tight eventually, and its use first regulates moment of torsion, then fastening bolt.
The feature of electric constant torque wrench:
Easy to operate, time saving and energy saving, moment of torsion is adjustable.
The ring flange of general normal title refers to the connector being exclusively used in connecting pipe, as the steel pipe of two diameters 100, availablely to freeze or they couple together by electric welding, take apart with regard to bad after welding, unless cut open with cutting machine or electric welding, if but with ring flange (dish is circular), just could add that rubber cushion seals, then fixing just passable with cap nut.When pipeline breaks down or overhaul, also easily can take apart, in addition as on large both sides, gate valve switch place, all be provided with ring flange, convenient in order to change switch exactly.
Visible, arranging ring flange in the junction of five metals parts is very necessary, and the surrounding of ring flange is provided with 3 ~ 5 bolts hole usually, when in use, need fixedly to tighten with bolt, but traditional torque wrench can only be applicable to flat surface usually, be not suitable for the such out-of-flatness surface of similar ring flange to use, cause ring flange when mounted, bolt on ring flange can only rely on the most traditional manual wrench to tighten, screwing force has operator to determine with feeling completely, the screwing force that bolt can reach suitable can not be guaranteed, ring flange in use, security can not be guaranteed, easily got loose by vibrations, need irregular maintenance, very large hidden danger is buried to large-scale instrumentation.
Summary of the invention
In order to solve above-mentioned Problems existing, the invention discloses a kind of torque wrench, this torque wrench can be applicable to the pretension of the bolt on out-of-flatness surface, is particularly useful for ring flange in use, and the pretension of bolt has good using value.
A kind of torque wrench, comprise hydraulic jack, connector and box spanner body, described connector is arranged on the clutch end of hydraulic jack, described connector and box spanner body are connected and fixed, it is characterized in that also comprising support and roller, described support has three support arms, in described three support arms arbitrary neighborhood two support arms between angle are all obtuse angles, described three support arms are connected with hydraulic jack, box spanner body and roller respectively.
Described three support arms pass through the first bearing pin, the second bearing pin and the 3rd pinned connection with hydraulic jack, box spanner body and roller respectively.
Described support can horizontally rotate around the first bearing pin.
The bottom of described roller is provided with skid-resistant pad.
Described roller has several, and the height of each roller is not etc., and each roller is all installed fixing by the support arm of the 3rd bearing pin and support.
Described box spanner body is provided with several pin shaft holes, and this pin shaft hole all coincide with the second bearing pin.
Operation principle of the present invention is:
According to the specification of ring flange, select the roller matched, below the corresponding support arm by the 3rd bearing pin roller being fixed on support, and the pin shaft hole that the support arm of support is corresponding on box spanner body is fixed by the second pinned connection.
The present invention during the course, first the sleeve of box spanner body is engaged with the bolt on ring flange, then, roller is placed on the limit of ring flange, industrial hydraulic tank connected by hydraulic jack, primer fluid compressing cylinder, and box spanner body can tight a bolt by auto spiral, after reaching default pretightning force, stop pretension.
The invention has the beneficial effects as follows:
1. three support arms of support are connected with hydraulic jack, box spanner body and roller respectively, and support has three fulcrums, more traditional spanner, add a fulcrum, box spanner body in the process of tighting a bolt, more steadily;
2. in three support arms of support, one of them support arm and hydraulic jack are by the first pinned connection, and support can horizontally rotate, two other difference second bearing pin in three support arms of support is connected with box spanner body and roller with the 3rd bearing pin, box spanner body has several pin shaft holes, connected from different pin shaft holes by conversion support arm, the position of conversion support, the installation of bolt on the ring flange of satisfied more different-diameters;
3. by changing the roller of different-diameter, the installation of bolt on the ring flange meeting differing heights.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Reference numerals list: 1-hydraulic jack, the 2-the first bearing pin, 3-connector, the 4-the second bearing pin, 5-box spanner body, 6-support, 7-roller, the 8-the three bearing pin.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.Following detailed description of the invention should be understood only be not used in for illustration of the present invention and limit the scope of the invention.It should be noted that, these accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Fig. 1 is structural representation of the present invention, visible by reference to the accompanying drawings, this torque wrench, comprise hydraulic jack 1, connector 3 and box spanner body 5, described connector 3 is arranged on the clutch end of hydraulic jack 1, described connector 3 is connected and fixed with box spanner body 5, it is characterized in that also comprising support 6 and roller 7, described support 6 has three support arms, in described three support arms arbitrary neighborhood two support arms between angle are all obtuse angles, described three support arms are connected with hydraulic jack 1, box spanner body 5 and roller 7 respectively.The present invention, three support arms of support 6 provide three fulcrums, and the present invention, can be more steady in the process of construction bolt, and meanwhile, in the process used, roller 7 is pressed on the limit of ring flange, can realize the fixed installation to the bolt on ring flange.
Described three support arms are connected by the first bearing pin 2, second bearing pin 4 and the 3rd bearing pin 88 with hydraulic jack 1, box spanner body 5 and roller 7 respectively, all dismountable flexible connections by the connected mode of the first bearing pin 2, second bearing pin 4 and the 3rd bearing pin 88, replacing for convenience detach.
Described support 6 can horizontally rotate around the first bearing pin 2.Facilitate support 6 according to different ring flange horizontal transformation positions.
The bottom of described roller 7 is provided with skid-resistant pad.Skid-resistant pad can prevent roller 7 from skidding on ring flange.
Described roller 7 has several, and the height of each roller 7 is not etc., and each roller 7 all to be installed with the support arm of support 6 by the 3rd bearing pin 88 and fixed.According to the height of different ring flanges, change and its roller 7 highly matched.
Described box spanner body 5 is provided with several pin shaft holes, and this pin shaft hole all coincide with the second bearing pin 4.Change the pin shaft hole that is connected with box spanner body 5 of support 6, change the position of three fulcrums that support 6 provides, the installation of bolt on the ring flange meeting different size.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, also comprises the technical scheme be made up of above technical characteristic.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to right.
Claims (6)
1. a torque wrench, comprise hydraulic jack, connector and box spanner body, described connector is arranged on the clutch end of hydraulic jack, described connector and box spanner body are connected and fixed, it is characterized in that also comprising support and roller, described support has three support arms, in described three support arms arbitrary neighborhood two support arms between angle are all obtuse angles, described three support arms are connected with hydraulic jack, box spanner body and roller respectively.
2. a kind of torque wrench according to claim 1, it is characterized in that described three support arms respectively with hydraulic jack, box spanner body and roller by the first bearing pin, the second bearing pin and the 3rd pinned connection.
3. a kind of torque wrench according to claim 2, is characterized in that described support can horizontally rotate around the first bearing pin.
4. a kind of torque wrench according to claim 3, is characterized in that the bottom of described roller is provided with skid-resistant pad.
5. a kind of torque wrench according to claim 4, is characterized in that described roller has several, and the height of each roller is not etc., and each roller is all installed fixing by the support arm of the 3rd bearing pin and support.
6. a kind of torque wrench according to claim 5, is characterized in that described box spanner body is provided with several pin shaft holes, and this pin shaft hole all coincide with the second bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846467.8A CN104589259A (en) | 2014-12-31 | 2014-12-31 | Torque spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846467.8A CN104589259A (en) | 2014-12-31 | 2014-12-31 | Torque spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104589259A true CN104589259A (en) | 2015-05-06 |
Family
ID=53115491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846467.8A Pending CN104589259A (en) | 2014-12-31 | 2014-12-31 | Torque spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104589259A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3706244A (en) * | 1971-03-01 | 1972-12-19 | Nsw Corp | Wrenching apparatus and method |
| DE2749857A1 (en) * | 1977-11-08 | 1979-05-10 | Wagner Maschf Paul Heinz | FREE WHEEL TURNING TOOL |
| AU3064477A (en) * | 1976-12-01 | 1979-05-24 | Paul-Heinz Wagner Mashinenfabrikation | Power Wrench |
| CN201154468Y (en) * | 2007-11-08 | 2008-11-26 | 赵克 | Open-end hydraulic wrench |
| US20110203425A1 (en) * | 2010-02-22 | 2011-08-25 | Luis Gerardo OYERVIDES OCHOA | Manually driven and self-contained, controlled tightening hydraulic wrench |
| CN202318156U (en) * | 2011-11-15 | 2012-07-11 | 中国石油集团西部钻探工程有限公司 | Special hydraulic wrench for blowout preventer |
| CN203510054U (en) * | 2013-09-17 | 2014-04-02 | 马鞍山市益华液压机具有限公司 | Improved structure of square driving hydraulic torque wrench |
| CN103962999A (en) * | 2013-02-01 | 2014-08-06 | 江苏金立电子机械科技有限公司 | Supporting spanner |
-
2014
- 2014-12-31 CN CN201410846467.8A patent/CN104589259A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3706244A (en) * | 1971-03-01 | 1972-12-19 | Nsw Corp | Wrenching apparatus and method |
| AU3064477A (en) * | 1976-12-01 | 1979-05-24 | Paul-Heinz Wagner Mashinenfabrikation | Power Wrench |
| DE2749857A1 (en) * | 1977-11-08 | 1979-05-10 | Wagner Maschf Paul Heinz | FREE WHEEL TURNING TOOL |
| CN201154468Y (en) * | 2007-11-08 | 2008-11-26 | 赵克 | Open-end hydraulic wrench |
| US20110203425A1 (en) * | 2010-02-22 | 2011-08-25 | Luis Gerardo OYERVIDES OCHOA | Manually driven and self-contained, controlled tightening hydraulic wrench |
| CN202318156U (en) * | 2011-11-15 | 2012-07-11 | 中国石油集团西部钻探工程有限公司 | Special hydraulic wrench for blowout preventer |
| CN103962999A (en) * | 2013-02-01 | 2014-08-06 | 江苏金立电子机械科技有限公司 | Supporting spanner |
| CN203510054U (en) * | 2013-09-17 | 2014-04-02 | 马鞍山市益华液压机具有限公司 | Improved structure of square driving hydraulic torque wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150506 |