CN1143004A - Fluid operated tool for elongating and relaxing threaded connector - Google Patents
Fluid operated tool for elongating and relaxing threaded connector Download PDFInfo
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- CN1143004A CN1143004A CN 95115364 CN95115364A CN1143004A CN 1143004 A CN1143004 A CN 1143004A CN 95115364 CN95115364 CN 95115364 CN 95115364 A CN95115364 A CN 95115364A CN 1143004 A CN1143004 A CN 1143004A
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- rotatable
- tool
- engagement device
- neck bush
- intermediary element
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Abstract
A fluid operated tool for elongating and relaxing a thread connector has a fluid operated drive having an axis, a driving part driven by the fluid operated drive and a reaction part, wherein the reaction part includes a non-rotatable tool element of tool provided with the first element for engaging non-rotatably a threaded connector. The driving part includes a rotatable tool element rotatable about an axis of the threaded connector and having second element for engaging the rotatable tool element with the non-rotatable tool element. An intermediate element is arranged between the non-rotatable tool element and the rotatable tool element. While the rotatable tool element freely turns relative to the intermediate element, it forms non-rotatable engaging with the non-rotatable tool element, when the rotatable tool element turns in axial direction, the non-rotatable tool element only moves in axial direction and pulls a threaded connector in axial direction.
Description
The present invention relates to the liquid actuation tool, relate more specifically to be used to extend or loosen the liquid actuation tool of screw thread coupling.
Known liquid activates spanner a lot of remodeling.Some liquid activate spanner and comprise a fluid pressure drive device, one actuator engages with screw thread coupling and is driven by drive unit, by the activated drive device, actuator rotates screw thread coupling, and a reaction member is used for offsetting the power that produces when rotating screw thread coupling.The reason that reaction member is set is to produce the power of turning tool in opposite direction when screw thread coupling rotates.Therefore need to offset this power, in existing instrument, finish with corresponding reaction member.In known liquid actuation tool, as applicant's US 4201099,4,336 727, disclosed liquid actuation tool such as 4368655, reaction member is made a supporting member, and it is located on the shell, and is bearing on the fixed object that is provided with near the screw thread coupling that will tighten and unscrew.Though this reaction member can be offset effectively to being inclined in opposite direction the power of turning tool, it has some shortcomings.The object that always needs a vicinity on the one hand can prop up by last reaction member.On the other hand, rest on always in these structures on the adjacent object, some parts pass to part actuator and the actuator to motion from fluid pressure drive device and are subjected to power and can make these part breakings like this.Therefore will be to further remodeling and the improvement of this liquid actuation tool.
Therefore, the purpose of this invention is to provide a kind of liquid actuation tool that can avoid the above-mentioned shortcoming of prior art liquid actuation tool.
For realizing above and other objects of the present invention, the invention provides a kind of liquid actuation tool that is used to extend or loosen screw thread coupling, comprise a fluid pressure drive device, by described fluid pressure drive device driving member driven; Not rotatable reaction member, described reaction member comprises that one is provided with and is used for the rotatable tool piece of first engagement device that engages un-rotatably with screw thread coupling, described actuator comprises the rotating tool piece that can rotate around the axle of screw thread coupling, also has second engagement device that described rotating tool piece is engaged with the described tool piece that does not turn, also has an intermediary element, be located between the described not rotatable tool piece and described rotating tool piece, make make it can with described rotatable tool engagement, when described rotating tool piece this intermediary element when described intermediary element is freely rotated or not, thereby when described rotating tool elements when described axle rotates, described not rotatable tool piece does not only rotate along described moving axially, and therefore makes screw thread coupling displacement vertically.
When the liquid actuation tool designs according to the present invention, eliminated the shortcoming of prior art and above-mentioned very favourable result is provided.
The characteristics that constitute feature of the present invention are in appending claims.But, in conjunction with the drawings to the detailed description of certain embodiments, can understand the structure of liquid actuation tool of the present invention, its method of operating, and other purpose, advantage etc., in the accompanying drawing:
Fig. 1 is the side view of liquid actuation tool of the present invention;
Fig. 2 is the top view that the part of the liquid actuation tool of Fig. 1 is dissectd;
Fig. 3 is the top view that the part of the liquid actuation tool of another embodiment of the present invention is dissectd,
Liquid actuation tool of the present invention is used for extending or unclamping for example screw thread coupling of screw rod 1 and so on.The liquid actuation tool has a shell 2.Liquid activated drive device is placed in the shell 2, generally comprise a hydraulic cylinder 4, the piston 5 that can move around in hydraulic cylinder under the liquid working medium effect extends to hydraulic cylinder 4 outsides and is connected rotationally so that make the piston rod 6 of its rotation with at least one drive plate 7.
Liquid actuation tool in the embodiment shown in fig. 1 also has do not turn an or reaction part 13.This reaction part 13 comprises not rotatable projection 14, and it can be on the shell 2 of the instrument that for example is contained in un-rotatably, and external splines is arranged.Also have not rotatable neck bush 15, it is provided with internal spline and is meshed with the external splines of projection 14 on the top shown in Fig. 2.The inner surface of neck bush 15 is provided with first engagement device 16, for example is arranged to the screw thread that can engage with the screw thread 1 ' of screw rod 1.
The liquid actuation tool also has a running part, and it comprises rotating tool piece 8.Rotating tool piece 8 can be arranged to an external bushing 9 and be connected with the coaxial projection 10 of ratchet 11, and the ratchet 12 that ratchet 11 can be able to pivotally be contained on the drive plate 7 rotates intermittently.The inner surface of external bushing 9 is provided with second engagement device 17, and it is arranged to for example can engage with the 3rd engagement device 18, and the 3rd engagement device 18 for example is set as the screw thread that matches on the outer surface with neck bush 15. Screw thread 1 ', 16 and 17,18 has opposite direction.
The liquid actuation tool also has an intermediary element 19.Cental element uncle 19 makes a ring, and it for example is provided with the internal spline 20 that can engage with the external splines 21 of the following axial component of neck bush 15.It also has a upper end face 22.As we know from the figure, neck bush 15 has 5 surfaces to cooperate with the other parts of instrument, and rubbed, it specifically is the surface of internal thread 16, the surface of external screw thread 18, the surface of its spline 21, the splined section that cooperates with not rotatable projection 14, the rear surface that the unshowned flange that is screwed into screw rod 1 fits.On the contrary, external bushing 8 has only 3 surfaces to be rubbed, and specifically is the surface of internal thread 17, the surface that cooperates with projection 10, the rear surface that freely contacts with the upper end face 22 of intermediary element 19.
When the liquid actuation tool was operated screw rod 1, neck bush 15 engaged with screw rod 1, because it is connected with the rotatable projection 14 of shell 2, it does not rotate, and stops screw rod to rotate.Under the effect of liquid activated drive device, ratchet 12 rotates ratchet 11, ratchet 11 rotates external bushing 9 with its projection 10 again successively, the end face 22 of the rear surface of external bushing 9 and intermediary element 19 fits, and freely rotate relative to the latter, neck bush 15 cannot be fixed into rotatablely by projection 14 and can only do axial displacement relative to rotating of external bushing 9 ', therefore according to the action direction of fluid pressure drive device, and the axial displacement that makes screw rod 1 do elongation or loosen.
Liquid actuation tool according to another embodiment of the present invention is shown in Fig. 3.In this embodiment, except neck bush 15 ', the reaction member of instrument is provided with the sleeve 23 of the internal spline 24 that meshes with the external splines 25 that for example is located at the not rotatable projection 14 ' on the tool outer casing 2 un-rotatably in addition.In the lower face part of Fig. 3, sleeve 23 has the internal spline 26 with external splines 27 engagement of intermediary element 19.Neck bush 15 ' is the top that can engage with another part of instrument as among first embodiment not.When the reaction part designs according to embodiment shown in Figure 3, neck bush 15 ' can not rotate, because it is by spline 20,21 with rotatable the engaging of intermediary element 19, intermediary element 19 is again by spline 26,27 with rotatable the engaging of sleeve 23, and sleeve 23 is by spline 24,25 and engaging that the rotatable projection 14 ' of instrument does not turn.
Drive part in Fig. 3 embodiment comprises the turnable tools element 8 ' of making external bushing 9.In this embodiment, external bushing 9 has internal spline 28, and spline 28 intermittently rotates with the ratchet 12 that ratchet 11 is installed in again on the drive plate 7.
In the operation of liquid actuation tool embodiment illustrated in fig. 3, neck bush 15 ' engages with screw rod 1, and it does not rotate because it is connected with the intermediary element 19 of not rotating, and element 19 is connected with the sleeve 23 that does not turn, and the rotation of prevention screw rod 1.Under the effect of liquid actuation tool, ratchet 12 rotating ratchets 11, it rotates external bushing 9 by its projection 10 again, its rear surface of external bushing 9 usefulness is pasting the end face 22 of intermediary element 19, and freely rotates corresponding to the latter, and neck bush 15 ' cannot not be rotatable, simultaneously can do axial displacement with respect to the rotation of external bushing 9, as a result, according to the action direction of liquid activated drive device, the axial displacement that it makes screw rod 1 do elongation or unclamp.
Though the present invention specifically do to describe and explanation with liquid actuation tool extending or that loosen screw thread coupling, the details shown in not planning to be limited to can be made a lot of remodeling and structural change in the spiritual scope of the present invention.
Claims (8)
1. a liquid actuation tool that is used to extend or loosen screw thread coupling comprises a fluid pressure drive device, by described fluid pressure drive device driving member driven; Not rotatable reaction member, described reaction member comprises that one is provided with and is used for the rotatable tool piece of first engagement device that engages un-rotatably with screw thread coupling, described actuator comprises the rotating tool piece that can rotate around the axle of screw thread coupling, also has second engagement device that described rotating tool piece is engaged with the described tool piece that does not turn, also has an intermediary element, be located between the described not rotatable tool piece and described rotating tool piece, make make it can with described rotatable tool engagement, when described rotating tool piece this intermediary element when described intermediary element is freely rotated or not, thereby when described rotating tool elements when described axle rotates, described not rotatable tool piece does not only rotate along described moving axially, and therefore makes screw thread coupling displacement vertically.
2. according to the liquid actuation tool of claim 1, it is characterized in that described rotatable tool piece makes a neck bush, its inner surface is provided with described first engagement device, and engage with the outer surface of screw thread coupling by described first engagement device, the outer surface of described neck bush is provided with the 3rd engagement device, described rotating tool piece is made an external bushing, its inner surface is provided with second engagement device, engage with the 3rd engagement device of described neck bush, described interior external bushing is coaxial.
3. according to the liquid actuation tool of claim 2, its feature is made a ring in described intermediary element, its inner surface is provided with the 4th engagement device that engages with the outer surface of described neck bush, described ring also has an end face, described outer lining is with another end face, contacts with the described end face of described intermediary element when described external bushing freely rotates with respect to intermediary element.
4. according to the liquid actuation tool of claim 2, it is characterized in that described liner is with a plurality of surfaces that cooperate with the other parts of described instrument, and described outer lining is with the less surface that cooperates with the other parts of described instrument.
5. according to the liquid actuation tool of claim 1, it is characterized in that also comprising that a shell has not rotatable projection, described not rotatable tool piece becomes not rotatable being connected with described projection.
6. according to the liquid actuation tool of claim 2, it is characterized in that also comprising that a shell has rotatable projection, described neck bush with in described neck bush and external bushing the inside radially, the projection of described shell becomes rotatable connection.
7. according to the liquid actuation tool of claim 2, it is characterized in that also comprising that a shell has not rotatable projection and a sleeve, described sleeve is connected un-rotatably with the described projection of described shell, and with being connected that described intermediary element cannot not become rotatablely yet.
8. according to the liquid actuation tool of claim 7, it is characterized in that footpath that described sleeve is positioned at described neck bush and external bushing to the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95115364 CN1143004A (en) | 1995-08-14 | 1995-08-14 | Fluid operated tool for elongating and relaxing threaded connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95115364 CN1143004A (en) | 1995-08-14 | 1995-08-14 | Fluid operated tool for elongating and relaxing threaded connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1143004A true CN1143004A (en) | 1997-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95115364 Pending CN1143004A (en) | 1995-08-14 | 1995-08-14 | Fluid operated tool for elongating and relaxing threaded connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1143004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111656025A (en) * | 2017-12-20 | 2020-09-11 | 超级螺栓有限公司 | Multi-chamber hydraulic multi-positioning bolt tensioner |
-
1995
- 1995-08-14 CN CN 95115364 patent/CN1143004A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111656025A (en) * | 2017-12-20 | 2020-09-11 | 超级螺栓有限公司 | Multi-chamber hydraulic multi-positioning bolt tensioner |
| CN111656025B (en) * | 2017-12-20 | 2022-02-11 | 超级螺栓有限公司 | Multi-chamber hydraulic multi-positioning bolt tensioner |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |