CN202528114U - Screwing wrench and screw mounting structure - Google Patents
Screwing wrench and screw mounting structure Download PDFInfo
- Publication number
- CN202528114U CN202528114U CN 201220125090 CN201220125090U CN202528114U CN 202528114 U CN202528114 U CN 202528114U CN 201220125090 CN201220125090 CN 201220125090 CN 201220125090 U CN201220125090 U CN 201220125090U CN 202528114 U CN202528114 U CN 202528114U
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- 238000006243 chemical reaction Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 206010019114 Hand fracture Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The utility model discloses a screw up spanner and screw firmware mounting structure, screw up the spanner including screwing up device (10), reaction rod (20) and support (30), it includes casing (11) and output shaft (12) that can relative rotation to screw up the device, the support mounting is in follow on the casing radially stretching out of output shaft, the reaction rod is installed on the support, wherein, screw up the spanner and include at least two reaction rod and two corresponding at least supports, two at least supports are angled the setting each other. Through adopting two at least supports, can make two at least reaction rods restrict each other, can prevent the reaction rod for the skid and the rotation in spacing hole to improve the stability and the security of screwing up the operation. In addition, when the wrench is screwed, the wrench is pressed by the screw and the at least two reaction rods to contact with the workpiece at least three points, so that a stable force bearing structure is formed, and the screw can be smoothly screwed into the workpiece.
Description
Technical field
The utility model relates to tooling device, particularly, relates to a kind of impact wrench and the screw tightening mounting structure that comprises this impact wrench that is used to tighten screw tightening.
Background technology
When on workpiece, tightening screw tightening (for example bolt), use electric tightening spanner or hydraulic pressure impact wrench to tighten screw tightening usually.During operation; For overcoming the reaction force that rundown process produces; The counter-force bar is set on impact wrench usually (also claims the counter-force arm or the reaction arm of force; Be a kind of part that is used to overcome or bear reaction force, irrelevant with the notion of " arm of force ", " arm of force " typically refers to the beeline from the set point to the line of force).Particularly, as shown in Figure 1, use impact wrench that screw tightening 40 is tightened to two workpiece 50.Wherein, Impact wrench comprises device for screwing up 10, a counter-force bar 20 and corresponding support 30; Device for screwing up 10 comprise can be counterrotating housing 11 and output shaft 12, support 30 is installed on the housing 11 and along the extending radially out of output shaft 12, counter-force bar 20 is installed on the support 30.Tighten before the operation, at first make two workpiece, 50 maintenance fixed positions, and on a workpiece 50 screwed hole 51 and spacing hole 52 are set therein, on another workpiece 50, screwed hole 51 is set.End with counter-force bar 20 is limited in the spacing hole 52 then, and screw tightening 40 is installed on the output shaft 12.The internal thread and the external screw thread that wherein, can make the end of spacing hole 52 and counter-force bar 20 have mutual coupling respectively.At last, can start impact wrench and tighten operation, so that screw tightening 40 is tightened in the screwed hole 51.In rundown process, counter-force bar 20 limits through spacing hole 52, and overcomes the reaction force that rundown process produces.
As stated, the reaction force of rundown process generation need bear through the counter-force bar 20 that is limited spacing hole 52.This requires spacing hole 52 to have firm being connected with counter-force bar 20.But the machining accuracy of the spacing hole of on workpiece, offering 52 is generally not high, causes counter-force bar 20 and spacing hole 52 to relatively rotate because of skidding easily.Owing to only be provided with a counter-force bar 20; Its rotation will drive housing 11 and rotate; Thereby cause housing 11 that reaction force is applied to operating personnel's hand, be applied to the moment big usually (for example surpassing 2000Nm) of operating personnel's hand thus, can cause operating personnel's hand fracture easily.Therefore, there is potential safety hazard in existing impact wrench.
In addition, owing to only be provided with a counter-force bar 20, in tightening operating process; Screw tightening 40 also will be born partial reaction power when bearing screwing force; Thereby screw tightening 40 itself receives bigger moment of flexure, possibly in rundown process, produce distortion, can't satisfy matching requirements.
The utility model content
The purpose of the utility model provides a kind of operation safe and can guarantee the impact wrench of assembly quality.
To achieve these goals, the utility model provides a kind of impact wrench, and said impact wrench comprises device for screwing up, counter-force bar and support; Said device for screwing up comprises can counterrotating housing and output shaft; Said support is installed on the said housing and along the extending radially out of said output shaft, said counter-force bar is installed on the said support, wherein; Said impact wrench comprises at least two said counter-force bars and at least two supports accordingly, and said at least two supports are in the angle setting.
Preferably, said impact wrench comprises two counter-force bars and corresponding two supports.
Preferably, said counter-force bar is connected with corresponding support slidably.
Preferably, said counter-force bar comprises the suit hole and is set on the said support.
Preferably, an end of each said support has installing hole, and said at least two supports are assemblied in the also axial setting of the said output shaft in edge on the said housing through said installing hole.
Preferably, said installing hole has internal thread, said housing have can with the external screw thread of said screw-internal thread fit.
Preferably, said impact wrench comprises the sleeve that is used to install screw tightening to be tightened, and said sleeve is assemblied on the said output shaft.
Preferably, any two mutual angulations of said support are the 30-180 degree.
The utility model also provides a kind of screw tightening mounting structure; Wherein, This screw tightening mounting structure comprises the impact wrench of workpiece, screw tightening and the utility model, and said workpiece comprises the screwed hole and at least two spacing holes that are used to limit said at least two counter-force bars that is used to install said screw tightening.
Preferably, the end of said counter-force bar has external screw thread, and said spacing hole has the internal thread that cooperates with said external screw thread.
Through technique scheme, adopt at least two supports, make at least two counter-force bars limit each other, can prevent the counter-force bar with respect to the skidding and rotating of spacing hole, thereby improve the stability and the security of tightening operation.In addition; The reaction force that rundown process produces is born by said two counter-force bars basically at least, and when tightening, impact wrench at least three contacts stressed with at least two counter-force bars with workpiece through screw tightening; Form stable force structure, make screw tightening can be screwed into workpiece smoothly.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is that explanation uses existing impact wrench to tighten the structural representation of operation;
Fig. 2 is that explanation uses the impact wrench of the utility model to tighten the structural representation of operation;
Fig. 3 is the vertical view of impact wrench among Fig. 2.
Description of reference numerals
10: device for screwing up 11: housing 12: output shaft 13: sleeve
20: counter-force bar 30: support 31: installing hole
40: screw tightening
50: workpiece 51: screwed hole 52: spacing hole
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
In the utility model, not do under the situation of opposite explanation, the noun of locality of use typically refers to reference to upper and lower, left and right shown in the drawings like " upper and lower, left and right "; " inside and outside " is meant inside and outside with respect to the profile of each parts itself.
An aspect according to the utility model; A kind of impact wrench is provided; Said impact wrench comprises device for screwing up 10, counter-force bar 20 and support 30, said device for screwing up 10 comprise can be counterrotating housing 11 and output shaft 12, said support 30 is installed in extending radially out on the said housing 11 and along said output shaft 12; Said counter-force bar 20 is installed on the said support 30; Wherein, said impact wrench comprises at least two said counter-force bars 20 and at least two supports 30 accordingly, and said at least two supports 30 are in the angle setting.
According to the utility model on the other hand; A kind of screw tightening mounting structure is provided; Wherein, This screw tightening mounting structure comprises the impact wrench of workpiece 50, screw tightening 40 and the utility model, and said workpiece 50 comprises the screwed hole 51 and at least two spacing holes 52 that are used to limit said at least two counter-force bars 20 that is used to install said screw tightening 40.
Wherein, each support 30 angled setting just makes each support 30 not parallel each other, thereby avoids each counter-force bar 20 to interfere each other.
During use; At least two spacing holes 52 limit at least two counter-force bars 20 respectively; Even one of them counter-force bar 20 occurs skidding and has rotation trend; Because remaining counter-force bar 20 still is limited in the corresponding spacing hole 52, thereby the counter-force bar 20 that occurs skidding can't be rotated, thereby makes housing 11 all the time with respect to workpiece 50 maintenance fixed positions.
Therefore; Through adopting at least two supports 30, can make in use that counter-force bar 20 receives the spacing of two spacing holes 52 at least, thereby at least two counter-force bars 20 are limited each other; Make housing 11 all the time with respect to workpiece 50 maintenance fixed positions, tighten the stability of operation with raising.In addition, use the impact wrench of the utility model, the reaction force that rundown process produces is born by at least two counter-force bars 20 basically, makes 40 need of screw tightening bear screwing force.Thus; When tightening operation; Impact wrench contacts stressed through screw tightening 40 and at least two counter-force bars 20 and workpiece 50 (below mention workpiece 50 be the workpiece 50 that offers spacing hole 52) at 3; Form stable force structure, thereby guarantee that screw tightening 40 also is screwed into workpiece 50 smoothly along the axial precession of output shaft 12.
In the utility model, impact wrench can have various suitable drive sources, for example can be electric tightening spanner or hydraulic pressure impact wrench, and the utility model does not limit this.
Preferably, as shown in Figures 2 and 3, said impact wrench can comprise two counter-force bars 20 and corresponding two supports 30, thereby simplifies the structure of impact wrench as far as possible and reduce cost.
In addition, in the preferred implementation of the utility model, said counter-force bar 20 can be connected with corresponding support 30 slidably.Through the relative slip of counter-force bar 20 and support 30, can regulate the installation site of counter-force bar 20 on support 30, with the workpiece 50 that is suitable for different size.Particularly; Spacing hole 52 that can be adapted to offer on the workpiece 50 of different size and the distance between the screwed hole 51; Through counter-force bar 20 is slided with respect to support 30; Come correspondingly to change the distance between counter-force bar 20 and the output shaft 12, make counter-force bar 20 and the screw tightening 40 that is installed on the output shaft 12 can join spacing hole 52 and screwed hole 51 respectively to.
Wherein, those skilled in the art can adopt various suitable structures to realize slidably being connected of counter-force bar 20 and corresponding support 30.For example, in embodiment shown in Figure 2, counter-force bar 20 can be sheathed each other with support 30.Particularly, said counter-force bar 20 can comprise the suit hole and be set on the said support 30.
In the utility model, those skilled in the art can adopt various suitable modes that support 30 is installed on the housing 11.Preferably, in Fig. 2 and embodiment shown in Figure 3, an end of each said support 30 has installing hole 31, and said at least two supports 30 can be assemblied on the said housing 11 and along the axial setting of said output shaft 12 through said installing hole 31.In other words, each support 30 can be installed on the housing 11 through its installing hole 31, and a plurality of supports 30 are along the axially-aligned of output shaft 12.
Preferably, said installing hole 31 can have internal thread, 11 of said housings have can with the external screw thread of said screw-internal thread fit.Thus, each support 30 can be as required 12 stretches out along any direction from output shaft.That is to say that one side is fixed support 30 and housing 11 easily; Can also come the angle between the corresponding adjusting support 30 according to the position in different workpieces 50 upper limit holes 52 on the other hand, thus the position of accommodation counter-force bar 20.
In addition, preferably as shown in Figure 3, said impact wrench can comprise the sleeve 13 that is used to install screw tightening to be tightened 40, and said sleeve 13 is assemblied on the said output shaft 12.During use, screw tightening 40 that will be to be tightened through sleeve 13 is assembled on the output shaft 12 and can tightens operation.In addition, can be equipped with a plurality of sleeves 13 of the screw tightening 40 that is suitable for different model for impact wrench, thereby only need change the screw tightening 40 that sleeve 13 promptly can be used for tightening various models.
As stated, angled setting between each support 30 is interfered to avoid counter-force bar 20 each other.Preferably, any two said support 30 mutual angulations are the 30-180 degree, when avoiding counter-force bar 20 to interfere each other, to obtain stable force structure.Particularly; Under situation with two counter-force bars 20; Shown in the vertical view of Fig. 3, can regard screw tightening 40 and two counter-force bars 20 as the formation triangle, the power that power that counter-force bar 20 bears and screw tightening 40 bear is reverse; Through making two supports 30 form suitable angle, can obtain good stress.
In addition, the end of said counter-force bar 20 can have external screw thread, and said spacing hole 52 can have the internal thread that cooperates with said external screw thread, to guarantee the position-limiting action of 52 pairs of counter-force bars 20 of spacing hole.Selectively, because at least two counter-force bars 20 limit each other, the spacing hole 52 and the counter-force bar 20 of the utility model also can be sheathed joints.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (10)
1. impact wrench; Said impact wrench comprises device for screwing up (10), counter-force bar (20) and support (30); Said device for screwing up (10) comprises can counterrotating housing (11) and output shaft (12); Said support (30) is installed in said housing (11) and goes up also extending radially out of the said output shaft in edge (12), and said counter-force bar (20) is installed on the said support (30), it is characterized in that; Said impact wrench comprises at least two said counter-force bars (20) and at least two supports (30) accordingly, and said at least two supports (30) are in the angle setting.
2. impact wrench according to claim 1 is characterized in that, said impact wrench comprises two counter-force bars (20) and corresponding two supports (30).
3. impact wrench according to claim 1 is characterized in that, said counter-force bar (20) is connected with corresponding support (30) slidably.
4. impact wrench according to claim 3 is characterized in that, said counter-force bar (20) comprises the suit hole and is set on the said support (30).
5. according to any described impact wrench among the claim 1-4; It is characterized in that; One end of each said support (30) has installing hole (31), and said at least two supports (30) are assemblied in said housing (11) through said installing hole (31) and go up the also axial setting of the said output shaft in edge (12).
6. impact wrench according to claim 5 is characterized in that, said installing hole (31) has internal thread, said housing (11) have can with the external screw thread of said screw-internal thread fit.
7. impact wrench according to claim 1 is characterized in that, said impact wrench comprises the sleeve (13) that is used to install screw tightening to be tightened (40), and said sleeve (13) is assemblied on the said output shaft (12).
8. impact wrench according to claim 1 is characterized in that, any two said supports (30) angulation each other are the 30-180 degree.
9. screw tightening mounting structure; It is characterized in that; This screw tightening mounting structure comprises workpiece (50), screw tightening (40) and according to any described impact wrench among the claim 1-8, said workpiece (50) comprises the screwed hole (51) that is used to install said screw tightening (40) and is used to limit at least two spacing holes (52) of said at least two counter-force bars (20).
10. screw tightening mounting structure according to claim 9 is characterized in that, the end of said counter-force bar (20) has external screw thread, and said spacing hole (52) has the internal thread that cooperates with said external screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125090 CN202528114U (en) | 2012-03-29 | 2012-03-29 | Screwing wrench and screw mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125090 CN202528114U (en) | 2012-03-29 | 2012-03-29 | Screwing wrench and screw mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202528114U true CN202528114U (en) | 2012-11-14 |
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ID=47129322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220125090 Expired - Fee Related CN202528114U (en) | 2012-03-29 | 2012-03-29 | Screwing wrench and screw mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202528114U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927759A (en) * | 2018-07-16 | 2018-12-04 | 深圳市奈士迪技术研发有限公司 | A kind of electric tool that stability is high |
| CN110450105A (en) * | 2019-08-30 | 2019-11-15 | 湖北汉唐智能科技股份有限公司 | A kind of general bolt tightens counter-force arm assembly |
| CN112872787A (en) * | 2021-03-23 | 2021-06-01 | 国电联合动力技术(保定)有限公司 | Mobile intelligent wind power bolt fastening equipment and fastening method thereof |
| CN113814925A (en) * | 2021-10-18 | 2021-12-21 | 重庆大学 | Torque self-balancing electric wrench and remote screw dismounting method |
| CN114310765A (en) * | 2022-01-17 | 2022-04-12 | 国家能源集团新能源有限责任公司 | Hydraulic spanner |
-
2012
- 2012-03-29 CN CN 201220125090 patent/CN202528114U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927759A (en) * | 2018-07-16 | 2018-12-04 | 深圳市奈士迪技术研发有限公司 | A kind of electric tool that stability is high |
| CN110450105A (en) * | 2019-08-30 | 2019-11-15 | 湖北汉唐智能科技股份有限公司 | A kind of general bolt tightens counter-force arm assembly |
| CN110450105B (en) * | 2019-08-30 | 2024-04-12 | 湖北汉唐智能科技股份有限公司 | General bolt tightening counter-force arm device |
| CN112872787A (en) * | 2021-03-23 | 2021-06-01 | 国电联合动力技术(保定)有限公司 | Mobile intelligent wind power bolt fastening equipment and fastening method thereof |
| CN113814925A (en) * | 2021-10-18 | 2021-12-21 | 重庆大学 | Torque self-balancing electric wrench and remote screw dismounting method |
| CN114310765A (en) * | 2022-01-17 | 2022-04-12 | 国家能源集团新能源有限责任公司 | Hydraulic spanner |
| CN114310765B (en) * | 2022-01-17 | 2024-01-26 | 国家能源集团新能源有限责任公司 | Hydraulic spanner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20210329 |