CN202556325U - Torque force fixing apparatus for pneumatic wrench - Google Patents
Torque force fixing apparatus for pneumatic wrench Download PDFInfo
- Publication number
- CN202556325U CN202556325U CN2012201494024U CN201220149402U CN202556325U CN 202556325 U CN202556325 U CN 202556325U CN 2012201494024 U CN2012201494024 U CN 2012201494024U CN 201220149402 U CN201220149402 U CN 201220149402U CN 202556325 U CN202556325 U CN 202556325U
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- spring sheet
- cylinder body
- moment
- torque force
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a torque force fixing apparatus for a pneumatic wrench. The apparatus comprises: a cylinder body with one end sealed and the other end opened; a central shaft; a support body, which is installed at the opening end of the cylinder body by a holding screw; an inner spring sheet, which is installed inside the cylinder body and approaches the sealed end; and an outer spring sheet, which is installed inside the cylinder body and approaches the support body. When a bolt is installed, according to the regulated moment, the dimensions and the number of the inner spring sheet and the outer spring sheet are adjusted, so that a required moment is set and the adjustment can be carried out conveniently and simply. And when moments of a tightened nut and bolt reach the needed one, an equal reactive moment is exerted on the cylinder body and the spring sheets enter an elastic deformation stage at the moment; because of the elastic deformation, the spring sheets slides out from ratchet grooves inside the cylinder body and are rotated relatively to the cylinder body, so that the cylinder body stops the selection and thus no force is exerted on the tightened nut and bolt.
Description
Technical field
The utility model relates to a kind of hardware & tools of dismounting screw nut, is specifically related to a kind of torque force device of deciding that can tighten torsion according to the demand change that is used for pneumatic impact spanner.
Background technology
Pneumatic impact spanner is the efficient mechanical instrument of dismounting screw nut, and it all has purposes widely in industries such as oil, chemical industry, railway, bridge, automobile, electric power, mine, boats and ships, buildings.In machinery manufacturing industry, on the general assembly line, except each part, the maximum of usefulness are exactly screw bolt and nut.The quality of a product quality does not lie in the quality of each part to a great extent, and is the quality of assembling.
Present domestic application pneumatic impact spanner more widely is divided into and generally is divided into two types, and one type is the impact wrench of routine property, and one type is the pulse pneumatic spanner, and both differences are, the former can not decide moment of torsion, and the latter can but equipment price is expensive.The assembly shop of the integrated mill pneumatic impact spanner that often service efficiency is high is twisted the work of bolt; But the required moment of the bolt of different size, different parts is different; For the moment that guarantees to tight a bolt is qualified,, pneumatic impact spanner also need the special messenger after tightening with the tight bolt of common wrench.Often final workman puts forth one's strength excessive, greater than desired screw-down torque.So not only wasted manpower, can't guarantee the uniformity of moment, the bolt that screw-down torque is little relatively is just loosening easily, has potential safety hazard.
Summary of the invention
The utility model provides a kind of torque force device of deciding that is used for pneumatic impact spanner in order to overcome the deficiency of above technology.Can according to the screw nut that will tighten specification and the convenient adjustment of moment that requires of the position of tightening originally be used for the work torsion of deciding torque force device of pneumatic impact spanner.
The technical scheme that its technical problem that overcomes the utility model adopts is:
Originally the torque force device of deciding that is used for pneumatic impact spanner; Comprise one one end seal the cylindrical shell that is cylinder barrel shaped of an end opening, central shaft, through holding screw be installed on the cartridge openings end supporter, be installed in the cylindrical shell inner spring sheet, be installed in the cylindrical shell outer spring sheet near supporter near blind end; Said cylindrical shell blind end arranged outside has and the measure-alike square shaft of wrench socket square hole; The inner hole wall of cylindrical shell along the circumferential direction is provided with several sour jujube grooves; Central shaft is made up of the square hole axle and the splined shaft that are connected with pneumtic impact wrench, and splined shaft is installed in the cylindrical shell and an end is rotationally connected with in the cylindrical shell blind end axis hole by the rotatable other end that supports of supporter, and inner spring sheet and outer spring sheet are the rectangle plates that have chamfered end; Chamfered end is arranged in cylindrical shell endoporus sour jujube groove, and the other end is installed on the splined shaft keyway.
Be provided with the T-shaped adjustment spring leaf that has chamfered end between above-mentioned inner spring sheet and the outer spring sheet, adjustment spring leaf one end is installed on the splined shaft keyway, and the other end is arranged in cylindrical shell endoporus sour jujube groove.
One plane of above-mentioned square shaft has been disposed radially a tapered blind hole, and jump ring and card pearl are installed in the tapered blind hole, and the axis of great circle of tapered blind hole is greater than the diameter of the diameter axis of small circle that blocks pearl less than the card pearl.
The beneficial effect of the utility model is: the utility model be used for pneumatic impact spanner to decide torque force device simple in structure; With low cost; Can be installed on the common pneumatic impact spanner and use, make common pneumatic impact spanner have the function of deciding torsion, possess the effect that is equal to the pulse pneumatic spanner.Through on original pneumatic impact spanner, increase originally be used for pneumatic impact spanner decide that torque force device is transformed and practiced thrift cost greatly.In last bolt, moment according to the rules, size and quantity through adjustment inner spring sheet and outer spring sheet make it be set to desired moment, and is easy to adjust simple.When the moment of the screw-nut of being tightened reaches the moment that needs then; Cylindrical shell receives the equal moment of reaction; This moment, spring leaf got into the strain stage, and owing to elastically-deformable reason, spring leaf can skid off the sour jujube groove in cylindrical shell; Spring leaf rotates with respect to cylindrical shell, thereby cylindrical shell stops to select to make the screw-nut of being tightened no longer stressed.Since this moment strain spring leaf when rotating, can beat the sour jujube slot part of cylindrical shell with respect to cylindrical shell and send the sound can remind the operator at this moment the moment of the nut that tights a bolt just reach the moment of regulation, should shut-down operation.
Description of drawings
Fig. 1 is that the device of the utility model connects sketch map;
Fig. 2 for the utility model be used for pneumatic impact spanner decide the torque force device sketch map;
Fig. 3 for the utility model be used for pneumatic impact spanner decide the generalized section of torque force device along central axis;
Fig. 4 for the A-A that decides torque force device that is used for pneumatic impact spanner of the utility model to generalized section;
Fig. 5 for the B-B that decides torque force device that is used for pneumatic impact spanner of the utility model to generalized section;
Fig. 6 is the inner spring chip architecture sketch map of the utility model;
Fig. 7 is the adjustment reed structure sketch map of the utility model;
Fig. 8 is the outer spring chip architecture sketch map of the utility model;
Among the figure, 1. pneumtic impact wrench 2. is decided torque force device 2.1 central shafts 2.2 holding screws 2.3 supporters 2.4 cylindrical shells 2.5 jump rings 2.6 card pearls 2.7 inner spring sheets 2.8 adjustment spring leafs 2.9 outer spring sheets 2.10 square shafts 2.11 tapered blind hole 3. wrench sockets.
The specific embodiment
Further specify below in conjunction with accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7,8 pairs of the utility model of accompanying drawing.
The device of the utility model as shown in Figure 1 connects sketch map, and the torque force device 2 of deciding that originally is used for pneumatic impact spanner is installed to common pneumtic impact wrench 1, and sleeve 3 is installed on the torsion ring 2.So just can make common pneumtic impact wrench possess the effect of deciding torsion.
As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5 be used for pneumatic impact spanner decide torque force device 2 comprise one one end seal the cylindrical shell that is cylinder barrel shaped 2.4 of an end opening, central shaft 2.1, through holding screw be installed on cylindrical shell 2.4 openends supporter 2.3, be installed in the cylindrical shell 2.4 inner spring sheets 2.7, be installed in the cylindrical shell 2.4 outer spring sheets 2.9 near supporter 2.3 near blind end; Said cylindrical shell 2.4 blind end arranged outside have and the measure-alike square shaft 2.10 of wrench socket 3 square holes; The inner hole wall of cylindrical shell 2.4 along the circumferential direction is provided with several sour jujube grooves; Central shaft 2.1 is made up of the square hole axle and the splined shaft that are connected with pneumtic impact wrench 1, and splined shaft is installed in the cylindrical shell 2.4 and an end is rotationally connected with in the cylindrical shell 2.4 blind end axis holes by the supporter 2.3 rotatable other ends that support.
Fig. 6, Fig. 8 are respectively the sketch map of inner spring sheet 2.7 and outer spring sheet 2.9, and inner spring sheet 2.7 is the rectangle plates that have chamfered end with outer spring sheet 2.9, and chamfered end is arranged in cylindrical shell 2.4 endoporus sour jujube grooves, and the other end is installed on the splined shaft keyway.According to the size selection outer spring sheet 2.9 of required torsion and the quantity of inner spring sheet 2.7, make it be set to the moment of standard during use.Because the length of inner spring sheet 2.7 is greater than the length of outer spring sheet 2.9, thus inner spring sheet 2.7 for the spring leaf than high pulling torque can be provided, outer spring sheet 2.9 is the spring leaf that less moment of torsion is provided.So moment of torsion makes things convenient for the specification and the quantity of cluster spring sheet as required.When starting working; Pneumtic impact wrench 1 drives central shaft 2.1 and rotates; Because spring leaf is installed on the central shaft 2.1 and the spring leaf chamfered end is arranged in cylindrical shell 2.4 endoporus sour jujube grooves; Can drive 2 rotations of torsion ring so central shaft 2.1 rotates, torsion ring 2 drives wrench sockets 3 and rotates, and wrench socket 3 is being with bolt or nut rotation.
The moment that reaches regulation when the screw-down torque of bolt and nut then; Wrench socket 3 receives equal countertorque, and the stressed critical value that reaches its strain in spring leaf place this moment is owing to elastically-deformable reason; Spring leaf can disconnect from the sour jujube groove; Thereby central shaft 2.1 drives spring leaf can be rotated with respect to cylindrical shell 2.4, and in the rotary course, thereby spring leaf realizes beating the sound of rattling away of cylindrical shell 2.4 owing to disconnect from the sour jujube groove continuously.The operator hears sound, just quits work immediately.The moment of bolt just reaches the moment of regulation at this moment.
Be provided with the T-shaped adjustment spring leaf 2.8 that has chamfered end between above-mentioned inner spring sheet 2.7 and the outer spring sheet 2.9, adjustment spring leaf 2.8 1 ends are installed on the splined shaft keyway, and the other end is arranged in cylindrical shell 2.4 endoporus sour jujube grooves.Because the adjustment spring leaf 2.8 T-shaped partial widths that are installed on the splined shaft keyway are wide, and be arranged in the narrow width of cylindrical shell 2.4 endoporus sour jujube grooves.So adjustment spring leaf 2.8 is also for providing the spring leaf of less moment of torsion.So this utility model be used for pneumatic impact spanner decide torque force device 2 when only needing the situation of less moment; Only need to install less inner spring sheet 2.7 in the cylindrical shell; So, mainly play the effect of filling interval location so introduce adjustment spring leaf 2.8 in order to prevent the phenomenon of occurrence of tilting when inner spring sheet 2.7 is very few.
One plane of above-mentioned square shaft 2.10 has been disposed radially a tapered blind hole, and jump ring 2.5 and card pearl 2.6 are installed in the tapered blind hole.And the axis of great circle of tapered blind hole is greater than the diameter of the diameter axis of small circle that blocks pearl 2.6 less than card pearl 2.6, so card pearl 2.6 only exposes a segment with respect to square shaft under the effect of jump ring 2.5.Card pearl 2.6 can be depressed jump ring 2.5 and realized that the square hole of wrench socket 3 is installed on the square shaft when assembly wrench sleeve 3, installs back card pearl 2.6 and can under the effect of jump ring 2.5, eject the effect that realizes blocking wrench socket 3.Make wrench socket 3 in use solid and reliable, difficult drop-off.
Claims (3)
1. torque force device of deciding that is used for pneumatic impact spanner; It is characterized in that: comprise one one end seal the cylindrical shell that is cylinder barrel shaped (2.4) of an end opening, central shaft (2.1), through holding screw be installed on cylindrical shell (2.4) openend supporter (2.3), be installed in the cylindrical shell (2.4) inner spring sheet (2.7), be installed in the cylindrical shell (2.4) outer spring sheet (2.9) near supporter (2.3) near blind end; Said cylindrical shell (2.4) blind end arranged outside has and the measure-alike square shaft (2.10) of wrench socket (3) square hole; The inner hole wall of cylindrical shell (2.4) along the circumferential direction is provided with several sour jujube grooves; Central shaft (2.1) is made up of square hole axle that is connected with pneumtic impact wrench (1) and splined shaft; Splined shaft is installed in the cylindrical shell (2.4) and an end is rotationally connected with in cylindrical shell (2.4) the blind end axis hole by the rotatable other end that supports of supporter (2.3); Inner spring sheet (2.7) and outer spring sheet (2.9) are the rectangle plates that have chamfered end; Chamfered end is arranged in cylindrical shell (2.4) endoporus sour jujube groove, and the other end is installed on the splined shaft keyway.
2. the torque force device of deciding that is used for pneumatic impact spanner according to claim 1; It is characterized in that: be provided with the T-shaped adjustment spring leaf (2.8) that has chamfered end between said inner spring sheet (2.7) and the outer spring sheet (2.9); Adjustment spring leaf (2.8) one ends are installed on the splined shaft keyway, and the other end is arranged in cylindrical shell (2.4) endoporus sour jujube groove.
3. the torque force device of deciding that is used for pneumatic impact spanner according to claim 1 and 2; It is characterized in that: a plane of said square shaft (2.10) has been disposed radially a tapered blind hole; Jump ring (2.5) and card pearl (2.6) are installed in the tapered blind hole, and the axis of great circle of tapered blind hole is greater than the diameter of the diameter axis of small circle that blocks pearl (2.6) less than card pearl (2.6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201494024U CN202556325U (en) | 2012-04-11 | 2012-04-11 | Torque force fixing apparatus for pneumatic wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201494024U CN202556325U (en) | 2012-04-11 | 2012-04-11 | Torque force fixing apparatus for pneumatic wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202556325U true CN202556325U (en) | 2012-11-28 |
Family
ID=47206023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201494024U Expired - Fee Related CN202556325U (en) | 2012-04-11 | 2012-04-11 | Torque force fixing apparatus for pneumatic wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202556325U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785208A (en) * | 2012-04-11 | 2012-11-21 | 田丽欣 | Torsion setting device for impact wrench |
| CN111451961A (en) * | 2020-04-22 | 2020-07-28 | 珠海格力智能装备有限公司 | Torsion positioning device |
-
2012
- 2012-04-11 CN CN2012201494024U patent/CN202556325U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785208A (en) * | 2012-04-11 | 2012-11-21 | 田丽欣 | Torsion setting device for impact wrench |
| CN102785208B (en) * | 2012-04-11 | 2015-10-07 | 胡妍 | A kind ofly determine torque force device for pneumatic impact spanner |
| CN111451961A (en) * | 2020-04-22 | 2020-07-28 | 珠海格力智能装备有限公司 | Torsion positioning device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102785208A (en) | Torsion setting device for impact wrench | |
| CN105291031A (en) | Arm type rapid nut dismounting machine tool | |
| CN202556325U (en) | Torque force fixing apparatus for pneumatic wrench | |
| CN105108687A (en) | Multi-rod wrench | |
| CN105479391A (en) | In-hole nut force-limiting tightening adapter | |
| CN205097106U (en) | Arm -type quick nut dismouting machines | |
| CN203853921U (en) | Quick-mounting-demounting tire wrench | |
| CN206720499U (en) | A kind of cable drum | |
| CN206048016U (en) | A kind of split type ratchet spanner | |
| CN101530960B (en) | Tightening and anti-rotating tooling and design method thereof | |
| CN208849570U (en) | Central spindle, rotor, motor and lathe | |
| CN210361090U (en) | GIS bellows assembly fixture | |
| CN206952897U (en) | A kind of device for bearing assembling | |
| CN210615897U (en) | Fixing device for machining general pump | |
| CN109217516A (en) | Central spindle, rotor, motor and lathe | |
| CN202612576U (en) | Input mechanism of variable pitch gear box | |
| CN109693204A (en) | A kind of conveniently expansion set bolt dismantling device | |
| CN107598549A (en) | A kind of nut Auto-lock Machine structure | |
| CN213673924U (en) | Pneumatic starter fluting nut's dismantlement frock | |
| CN210889434U (en) | Fan shaft of transformer substation | |
| CN210589088U (en) | Locking tool of nut for machine tool spindle | |
| CN203875589U (en) | Torque tightening and dismantling device for large compression nut | |
| CN207763635U (en) | A kind of Novel diesel engine cross bolts twisting angle instruction device | |
| CN112729683B (en) | Dynamic balance process and driving device thereof | |
| CN210243073U (en) | Bolt simulator and torque wrench calibrating device using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130411 |