CN1054094C - Fluid operated torque tool - Google Patents
Fluid operated torque tool Download PDFInfo
- Publication number
- CN1054094C CN1054094C CN95109957A CN95109957A CN1054094C CN 1054094 C CN1054094 C CN 1054094C CN 95109957 A CN95109957 A CN 95109957A CN 95109957 A CN95109957 A CN 95109957A CN 1054094 C CN1054094 C CN 1054094C
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- CN
- China
- Prior art keywords
- fastener
- actuator
- threaded connector
- torque tool
- axial
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- 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 - Lifetime
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A fluid-operated torque tool for tightening and loosening threaded connectors has an engaging element having an axis and two axial ends with at least one of the ends adapted to engage a threaded connector to be tightened or loosened, and a driving element which is displaceable under the action of a working fluid in an axial direction of the engaging element and engages with the engaging element so that during the axial displacement of the driving element the engaging element turns about the axis and therefore tightens or loosens a threaded connector engaged by the engaging element.
Description
The present invention is the part continuation application of No. the 812nd, 629, the U.S. Patent application submitted on December 23rd, 1991.
The present invention relates to be used to tighten or the fluid actuated torque tool of pine oil threaded connector such as bolt, nut etc.
The fluid actuated torque tool of above-mentioned universal class is being known in the art and is having a wide range of applications.In known fluid actuated torque tool, instrument is basically perpendicular to driving axis work.In other words, when fluid actuated torque tool has the drive unit of a fastener that engages with described connector and a fluid actuated cylinder-piston component form, piston is in the axial displacement of cylinder-piston component, and the fastener of instrument rotates around the axis with the axis normal of cylinder-piston component.This known instrument might be improved.
Therefore, the purpose of this invention is to provide a kind of fluid actuated torque tool that can avoid defective of the prior art.
A kind of fluid actuated torque tool that is used to tighten with the pine oil threaded connector comprises: a fixing housing, a fastener, described fastener has an axis and two axial ends, and the shape of at least one in described two axial ends can engage to be waited to tighten or the threaded connector of pine oil; It is characterized in that: actuator under the effect of working fluid serially with one axially then with another axially with respect to the displacement and engage in described stationary housing of described fastener with described fastener, therefore, a described actuator in described stationary housing in above-mentioned diaxon makes progress the process of continuous axial displacement, described fastener only rotates around described axis along a circumferencial direction, thereby on a circumferencial direction, rotate described threaded connector, so that the threaded connector of described fastener joint is tightened or pine oil.
When according to the actuated torque tool of design flow of the present invention, this tool construction is simple, needs seldom part.Instrument of the present invention also has less diameter, and simultaneously, because the piston area of instrument of the present invention occupies very little space, thereby instrument of the present invention is very powerful.
According to another feature of the present invention, fluid actuated torque tool has the device of engages drive part and fastener, is provided with the spiral salient and the groove that are bonded with each other on actuator and connector.
Another feature of the present invention is, fluid actuated torque tool of the present invention has a static element, has a plurality of many teeth that come in the space on perpendicular to the direction of axis on the static element; Annular ratchet can rotate and be provided with anti-tooth spaced apart on perpendicular to axis direction with respect to fastener, be meshed with the tooth of static element, actuator engages with ratchet, can move axially with respect to ratchet simultaneously, therefore, when the tooth of ratchet was meshed with the tooth of static element, actuator continuous phase under the effect of fluid reached for ratchet and moves axially with respect to fastener.
According to another feature of the present invention, in fluid actuated torque tool, actuator comprises that two can engage with fastener and can be with respect to the axially movable drive part of fastener, therefore, when two drive parts were mobile in succession with respect to fastener under the working fluid effect, fastener was to rotate in the same way.
Another feature of the present invention is, in fluid actuated torque tool, the mutual in the axial direction close two parts of fastener are provided with the spiral structure that rightabout tilts, actuator has the backpitch structure that is meshed with the spiral structure of fastener, itself and different direction tilt, therefore, when one of actuator one axially on axial displacement, and another actuator opposite axially on during axial displacement, fastener rotates in the same way.
Another feature of the present invention is that in fluid actuated torque tool, two drive parts of actuator can relatively rotate.
Another feature of the present invention is, this actuated torque tool is provided with the device of the part that is used to connect actuator, so the axially displacement relatively of the part of actuator, and above-mentioned jockey comprises the spline that is bonded with each other.
According to another feature of the present invention, fluid actuated torque tool has the device that constitutes fluid cylinder, and above-mentioned cylinder is used to admit working fluid and makes actuator with respect to fastener axial displacement.
Another feature of the present invention is, fluid actuated torque tool has the device that constitutes cylinder, and above-mentioned cylinder is suitable for admitting working fluid, and working fluid alternately acted on two drive parts so that make two drive parts do axial displacement at two on axially.
Now contrasting the following drawings is described in detail the present invention.
Fig. 1 is the partial sectional view according to fluid actuated torque tool of the present invention;
Fig. 2 is the stereogram of the fastener of instrument of the present invention;
Exploded perspective view shown in Figure 3 is represented the actuator and the ratchet of instrument of the present invention.
Has a fastener 1 according to fluid actuated torque tool of the present invention.Fastener 1 is made the long cylinder oblique crank Z of classification, has two and is suitable for engaging and waits to tighten or two ends 2 and 3 of the threaded connector of pine oil.For example, end 2 and 3 can be made into rectangle or hexagonal cross-section so that can engage in the rectangle or hexagonal hole of the nest seat that into is connected with threaded connector.Fastener 1 also has larger-diameter two parts 4 and 5, and the central cylindrical shape part 6 between part 4 and 5.Middle body 6 has two parts, which is provided with the thread structure such as the helical tooth that tilt in the opposite direction.In other words, from the medium line 7 of part 6, spiral structure 8 tilts to the right from the lower-left, and spiral structure 9 then has a down dip to the right from upper left.
Keeper 13 can rotate with respect to axle sleeve 10 and 11, and this is that for example, bearing 15 can be made of ball owing to be provided with the cause of bearing 15 therebetween.The inner of axle sleeve is provided with a plurality of teeth 18 and 19, tooth 18 and 19 perpendicular to the axis A of fastener 1 upwards be spaced from each other in week, and tilt with opposite direction.
Actuator 20 has two drive parts 21 and 22, and these two parts for example can interconnect by ball bearing 23, thereby they can do axial displacement jointly, and can relatively rotate simultaneously.Torque tool also has annular ratchet 24 and 25, and they can rotate with respect to actuator, and by spring 26 and 27 in the axial direction bias voltage to axle sleeve 10 and 11.Ratchet be provided with can with the teeth 28 and 29 of the tooth 18 of axle sleeve 10 and 11 and 19 engagements.Drive part 21 links to each other with ratchet 24 by intermeshing structure such as spline, and therefore, it can be axially with respect to ratchet 24 and with respect to fastener 1 displacement.Drive part 22 also links to each other with ratchet 25 by intermeshing structure such as spline 31, and therefore, it also can be axially with respect to ratchet 25 and with respect to fastener 1 displacement.Drive part 21 and 22 has radially inner projection 32 and 33, and they are provided with spiral structure such as helical tooth.Projection 32 is different with 33 spiral structure incline direction, they corresponding to the spiral protrusion 8 of fastener 1 and 9 so as with its engagement.
Instrument of the present invention has a shell 34.Shell 34 has two by the interconnective shell of screw thread 37 portion 35 and 36.Shell has two mutual disconnected chambers 38 and 39, makes that for example hydraulic oil can alternately enter and discharge chamber 38 and 39.
Work by following mode according to fluid actuated torque tool of the present invention.
When working fluid such as hydraulic oil when the hydraulic oil source (not shown) enters chamber 39, drive part 22 is upwards boosted, and upwards boosts drive part 21.Because the tooth 26 of ratchet 24 is meshed with the tooth 18 of axle sleeve 10, drive part 21 can not rotate, but moves on axial with respect to ratchet 24 and with respect to fastener 1.Because the spiral structure 32 of drive part 21 is meshed with the spiral structure 8 of fastener 1, thereby moves on drive part 21 axial fastener 1 is rotated with the predetermined direction shown in the arrow.In above-mentioned process of moving on axially, drive part 22 can rotate with respect to drive part 21, and the tooth 29 of ratchet 25 just skids on the tooth 19 of axle sleeve 11.
Thereafter, when fluid when chamber 39 escapes and enter chamber 38, drive part 21 and 22 axially moves down.Because the tooth 29 of ratchet 25 is meshed with axle sleeve 11, drive part 22 can not rotate, and axially moves down with respect to fastener 1 but reach with respect to ratchet 25.Because the spiral structure 33 of drive part 22 is meshed with the spiral structure 9 of fastener, fastener 1 rotates with identical direction, and drive part 21 rotates with respect to drive part 22, and the tooth 28 of ratchet 24 skids on the tooth 18 of axle sleeve 10.Thereby the continuous rotation of formation axle, thereby securing member can be tightened.In order to make instrument be converted to pine oil from tightening, instrument is turned, the upper end of fastener 1 is engaged with securing member.
Fluid actuated torque tool also is provided with a reaction member 40.Reaction member and have internal spline 41, it is meshed with the external splines 42 that is provided with on two ends of shell.As everybody knows, reaction member can be against a side of the object such as the flange of adjacency, the nut of an adjacency, the bottom of a shell etc.In relevant operation, another axial side of shell can be pulled down and be contained in to reaction member from an axial side of shell.
Obviously, fluid actuated torque tool of the present invention also can come work with the single actuator that is provided with a spiral structure with the middle part 6 of the fastener 1 that is provided with the one-way spiral structure.In this case, this actuator that is provided with a spiral structure will make the fastener one-directional rotation, and ratchet does not make instrument rotate with opposite direction.
Shell is the cylinder that has the chamber of admitting liquid in the illustrated embodiment, the top of this cylinder obviously can be with instrument arranged apart and work, make it be converted to opposite side from a side.But this can make instrument elongated.
When fluid actuated torque tool is during according to design of the present invention, it is simple in structure, and required number of spare parts is little, and its diameter is less in addition, simultaneously because the piston area occupied is little, thereby very strong and powerful.
Obviously, in being different from other structure of above-described type, also can use above-described every kind of part or its in conjunction with and obtain good effect.
Though the embodiment of fluid actuated torque tool of the present invention is described above,, the present invention is not limited thereto, and those skilled in the art can be done various changes and not exceed scope of the present invention it.
Need not superfluous words, disclose the present invention above fully, those skilled in the art can use its existing knowledge, and the present invention is applied to various occasions.
Claims (9)
1. fluid actuated torque tool that is used to tighten with the pine oil threaded connector, it comprises: a fixing housing, a fastener, described fastener has an axis and two axial ends, and the shape of at least one in described two axial ends can engage to be waited to tighten or the threaded connector of pine oil; It is characterized in that: actuator under the effect of working fluid serially with one axially then with another axially with respect to the displacement and engage in described stationary housing of described fastener with described fastener, therefore, a described actuator in described stationary housing in above-mentioned diaxon makes progress the process of continuous axial displacement, described fastener only rotates around described axis along a circumferencial direction, thereby on a circumferencial direction, rotate described threaded connector, so that the threaded connector of described fastener joint is tightened or pine oil.
2. fluid actuated torque tool as claimed in claim 1 is characterized in that: also comprise the device that constitutes a fluid cylinder, it is used to admit working fluid, and makes described actuator with respect to described fastener axial displacement.
3. fluid actuated torque tool as claimed in claim 1, it is characterized in that: form intermeshing structure on described actuator and the described fastener, therefore, when described actuator during at two opposite axial top offsets, described fastener only rotates around described axis along a circumferencial direction.
4. fluid actuated torque tool as claimed in claim 1 is characterized in that: comprise also being used to make described actuator to engage the device of described fastener that it comprises and is located on described actuator and the fastener and intermeshing spiral protrusion and thread groove.
5. fluid actuated torque tool that is used to tighten with the pine oil threaded connector, it comprises: a fixing housing, a fastener, described fastener have an axis and two axial ends, and the shape of at least one described axial end can engage to be waited to tighten or the threaded connector of pine oil; It is characterized in that: an actuator can engage at the axial top offset of described fastener and with described fastener under the effect of working fluid, thereby in the process of the above-mentioned axial displacement of described actuator in described stationary housing, described fastener rotates around described axis in described fixing housing, thereby on a circumferencial direction, rotate described threaded connector, so that the threaded connector that described fastener engaged is tightened or pine oil; And static element that is provided with a plurality of teeth that come in the space on perpendicular to the direction of described axis; A ratchet, it can rotate with respect to described fastener, and be provided with on the space and come perpendicular to the direction of described axis, the anti-tooth that can mesh with the tooth of described static element, described actuator engages with described ratchet, can move axially with respect to described ratchet simultaneously, thereby when the tooth of described ratchet was meshed with the tooth of described static element, described actuator moved axially continuously with respect to described ratchet and with respect to described fastener under the effect of fluid.
6. fluid actuated torque tool as claimed in claim 5, it is characterized in that: also comprise being used to device that described actuator is connected with described ratchet, thereby make described actuator do axial displacement with respect to ratchet, described jockey comprises intermeshing spline.
7. fluid actuated torque tool as claimed in claim 6, it is characterized in that: also comprise the device that constitutes cylinder, it is suitable for admitting working fluid, and working fluid is alternately acted on the described drive part, so that make described drive part axially do axial displacement along described two.
8. fluid actuated torque tool that is used to tighten with the pine oil threaded connector, it comprises: a fixing housing, a fastener, described fastener have an axis and two axial ends, and the shape of at least one described axial end can engage to be waited to tighten or the threaded connector of pine oil; It is characterized in that: actuator under the effect of working fluid can described fastener axially on displacement and engage in described fixing housing with described fastener, thereby in the axial displacement process of described actuator in described fixing housing, described fastener rotates around described axis in described fixing shell is stopped, thereby on a circumferencial direction, rotate described threaded connector, so that tighten or pine oil by threaded connector that described fastener engaged, wherein, described actuator comprises two drive parts that can engage with described fastener by the device that is bonded with each other, these two drive parts interconnect by jockey, so that move axially with respect to described fastener together, therefore, when under the effect of described two drive parts at working fluid continuously with two rightabouts when mobile together with respect to described fastener, described fastener is to rotate in the same way.
9. fluid actuated torque tool as claimed in claim 8, it is characterized in that: described fastener has close mutually in the axial direction, and be provided with two parts of the opposite spiral structure of incline direction, described two drive parts have with the engagement of the spiral structure of described fastener, construct with the backpitch that different directions tilts, therefore, when one of described drive part one axially on during axial displacement, and when another described drive part with opposite when axially making axial location, described fastener rotates with identical direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US338,330 | 1989-04-17 | ||
| US08/338,330 US5467671A (en) | 1991-12-23 | 1994-11-14 | Fluid-operated torque tool |
| US338330 | 1994-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1123213A CN1123213A (en) | 1996-05-29 |
| CN1054094C true CN1054094C (en) | 2000-07-05 |
Family
ID=23324371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95109957A Expired - Lifetime CN1054094C (en) | 1994-11-14 | 1995-07-03 | Fluid operated torque tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1054094C (en) |
| RU (1) | RU2140848C1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585178B (en) * | 2008-05-23 | 2011-01-05 | 谢智庆 | Jugged component and hand tool with same |
| CN109895008B (en) * | 2019-03-25 | 2020-10-09 | 日信电气股份有限公司 | Automatic hydraulic tightening device for bolt |
| CN109895007B (en) * | 2019-03-25 | 2020-10-09 | 日信电气股份有限公司 | Bolt tightening device based on oil cylinder |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4513644A (en) * | 1983-12-28 | 1985-04-30 | Weyer Paul P | Fluid powered torque wrench |
-
1995
- 1995-06-30 RU RU95110780A patent/RU2140848C1/en active
- 1995-07-03 CN CN95109957A patent/CN1054094C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4513644A (en) * | 1983-12-28 | 1985-04-30 | Weyer Paul P | Fluid powered torque wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1123213A (en) | 1996-05-29 |
| RU95110780A (en) | 1997-06-27 |
| RU2140848C1 (en) | 1999-11-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150703 Granted publication date: 20000705 |
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| EXPY | Termination of patent right or utility model |