CN103831773B - A kind of hand moment of torsion screw rotating tool - Google Patents
A kind of hand moment of torsion screw rotating tool Download PDFInfo
- Publication number
- CN103831773B CN103831773B CN201210478416.5A CN201210478416A CN103831773B CN 103831773 B CN103831773 B CN 103831773B CN 201210478416 A CN201210478416 A CN 201210478416A CN 103831773 B CN103831773 B CN 103831773B
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- CN
- China
- Prior art keywords
- needle roller
- handle
- ball
- rotating tool
- extension bar
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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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
Abstract
A kind of hand moment of torsion screw rotating tool, comprise handle, extension bar and rear stifled, rear blocking up is connected with the tail seal of handle, one end of extension bar extend in described handle, the termination that extension bar extend into the one end in described handle is bulb in many ways, cavity is provided with in the afterbody of handle, snap-in structure is provided with in this cavity, in many ways bulb is stuck in this snap-in structure, in cavity, be positioned at snap-in structure be provided with needle roller multistation axial clutch structure near the side of described handle afterbody, a stage clip is connected with near the side of described handle afterbody in this needle roller multistation axial clutch structure, the other end of this stage clip and described rear stifled between be provided with stage clip telescopic regulation structure.The stage clip telescopic regulation structure of this driver controls the torque limit of driver by the compressive state controlling stage clip, can be applicable to different screws and rotate requirement, under the prerequisite not damaging screw thread, be screwed by screw.
Description
Technical field
The present invention relates to a kind of hand moment of torsion screw rotating tool, especially a kind of hand moment of torsion screw rotating tool with needle roller multistation axial clutch structure.
Background technology
In daily life and activity in production, the various screw rotating tool of frequent use, these driver are made up of the torque transmission mechanism in handle, connecting rod, sleeve, handle and preset mechanism of torque, apply revolving force by people to handle reach screwing of screw or unscrew, but, because screw has the limit of bearing torsion, if operator is too large to screw applied pressure, the screw of screw will be caused to damage the phenomenon occurring stripped thread.Traditional driver adopts the radial clutch of multistation cam-type, frictional force is large, manufacturing expense is high, and the many employings of needle roller multistation axial clutch structure is cross needle roller four station, for formula clutch of creeping, the bulb of traditional extension bar is connected with nylon elastic pawl or magnet steel, and the former is not durable, the latter produces magnetic damping, and the connection effect of bulb is bad.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of hand moment of torsion screw rotating tool, the stage clip telescopic regulation structure of this driver controls the output torque of driver by the compressive state controlling stage clip, different screw lock torque requirement can be applicable to, under the prerequisite not damaging screw thread, screw is screwed.
In order to solve existing technical problem, the technical solution used in the present invention is: a kind of hand moment of torsion screw rotating tool, comprise handle, extension bar and rear stifled, described rear blocking up is connected with the tail seal of described handle, one end of described extension bar extend in described handle, one end that extension bar stretches out described handle is set with a sleeve, it is characterized in that, the termination that described extension bar extend into the one end in described handle is bulb in many ways, cavity is provided with in the afterbody of described handle, snap-in structure is provided with in this cavity, described bulb is in many ways stuck in this snap-in structure, the left side being positioned at described snap-in structure in described cavity is provided with plane bearing assembly, in described cavity, be positioned at described snap-in structure be provided with needle roller multistation axial clutch structure near the side of described handle afterbody, a stage clip is connected with near the side of described handle afterbody in this needle roller multistation axial clutch structure, the other end of this stage clip and described rear stifled between be provided with stage clip telescopic regulation structure.
Above-mentioned a kind of hand moment of torsion screw rotating tool, described snap-in structure comprises vexed button and the actuating sleeve with square hole, and one end that described extension bar stretches into described handle is passed the square hole of described actuating sleeve and is stuck in termination in the described vexed button hole buckled.
Above-mentioned a kind of hand moment of torsion screw rotating tool, described needle roller multistation axial clutch structure comprises needle roller base, needle roller, ball set, ball base, steady pin and slip spring abutment, described ball base sheath is contained on described slip spring abutment, described needle roller base is provided with the groove corresponding with described needle roller, needle roller is arranged in this groove, the diameter of needle roller is greater than the degree of depth of this groove, described ball base is provided with arc groove circumferentially, described ball set is located in this arc groove by ballframe carriage, described needle roller is corresponding with described ball to be arranged, described needle roller base is by the ball contact on needle roller and described ball base, and needle roller base can rotate in circumference relative to described ball base, described slip spring abutment is provided with through hole, the axial gap of this through hole is greater than the diameter of described steady pin, described steady pin passes this through hole and is fixedly connected with the shell of described handle.
Above-mentioned a kind of hand moment of torsion screw rotating tool, the quantity of described ball set is even number, the peak of described ball is all in same plane, multiple circular gap is defined between ball adjacent between two in described ball base arc groove, the plurality of circular gap measure-alike, drops in this circular gap when needle roller rotates.
Above-mentioned a kind of hand moment of torsion screw rotating tool, described actuating sleeve and described needle roller base are mutually fixed and link together, and described vexed button is arranged on actuating sleeve and needle roller base and engages in the cavity that formed.
Above-mentioned a kind of hand moment of torsion screw rotating tool, described stage clip telescopic regulation structure comprises adjustment screw and stop nut, described slip spring abutment is provided with convex shoulder accordingly with described adjustment screw, described compression spring sleeve is contained on this convex shoulder, and described adjustment screw controls the flexible of stage clip by rotating to move left and right.
Above-mentioned a kind of hand moment of torsion screw rotating tool, described bulb is in many ways six side's bulbs.
Above-mentioned a kind of hand moment of torsion screw rotating tool, described extension bar is six side's extension bars.
Above-mentioned a kind of hand moment of torsion screw rotating tool, described needle roller is preferably wolfram steel rod.
Above-mentioned a kind of hand moment of torsion screw rotating tool, described handle is made up of hydronalium.
Beneficial effect of the present invention is: the stage clip telescopic regulation structure of this driver controls the output torque of driver by the compressive state controlling stage clip, can be applicable to different screw lock torque requirement, under the prerequisite not damaging screw thread, be screwed by screw.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the schematic diagram of snap-in structure of the present invention
Fig. 3 is the schematic diagram of needle roller multistation axial clutch structure of the present invention
Fig. 4 is the enlarged drawing of snap-in structure of the present invention and needle roller multistation axial clutch structure
Detailed description of the invention
Further understand for making to have architectural feature of the present invention and effect of reaching and be familiar with, coordinate detailed description in order to preferred embodiment and accompanying drawing, be described as follows:
As shown in Figure 1, a kind of hand moment of torsion screw rotating tool, comprise handle 1, extension bar 2 and rear stifled 3, rear stifled 3 are connected with the tail seal of handle 1, one end of extension bar 2 extend in handle 1, one end that extension bar 2 stretches out handle 1 is set with a sleeve 4, and the termination that extension bar 2 extend into the one end in handle 1 is bulb 21 in many ways, is provided with cavity 11 in the afterbody of handle 1.
The steel ball 42 that sleeve 4 comprises collet head 41 and is arranged in collet head 41, is provided with connection plug 43 at sleeve 4 and the junction of extension bar 2.
As a modification of the present invention, as shown in Figure 2, snap-in structure 7 is provided with in this cavity 11, in many ways bulb 21 is stuck in this snap-in structure 7, the left side being positioned at snap-in structure in cavity 11 is provided with plane bearing assembly 5, snap-in structure 7 comprises vexed button 71 and the actuating sleeve 72 with square hole, one end that extension bar 2 stretches into handle 1 through actuating sleeve 72 square hole and termination 21 be stuck in vexedly buckle in the button hole of 71, actuating sleeve 72 can drive vexed button 71 and extension bar 2 to rotate relative to plane bearing assembly 5.
Further improve as of the present invention, as shown in Figure 1, Figure 3, in cavity 11, be positioned at snap-in structure be provided with needle roller multistation axial clutch structure 8 near the side of handle 1 afterbody, be connected with a stage clip 6 in this needle roller multistation axial clutch structure 8 near the side of handle 1 afterbody, between the other end of this stage clip 6 and rear stifled 3, be provided with stage clip telescopic regulation structure 9.
Needle roller multistation axial clutch structure 8 comprises needle roller base 81, needle roller 82, ball set 83, ball base 84, slip spring abutment 85 and steady pin 86, ball base 84 is sleeved on slip spring abutment 85, needle roller base 81 is provided with the groove 87 corresponding with needle roller 82, needle roller 82 is arranged in this groove 87, the diameter of needle roller 82 is greater than the degree of depth of this groove 87, ball base 84 is provided with arc groove circumferentially, ball set 83 is located in this arc groove by ballframe carriage 88, needle roller 82 is corresponding with ball 83 to be arranged, needle roller base 81 is contacted with the ball 83 on ball base 84 by needle roller 82, and needle roller base 81 can rotate in circumference relative to ball base 84, when rotated, needle roller 82 and ball 83 are in sliding friction state, the quantity of ball set 83 is even number, multiple circular gap is defined between ball adjacent between two in ball base 84 arc groove, the plurality of circular gap measure-alike, needle roller 82 drops on when rotating in this circular gap, the peak of ball 83 is all in same plane, needle roller 82 and be tending towards constant to the frictional force between each ball, during each rotation extension bar 2, the torque output of extension bar 2 is all in a steady state value, this driver would not occur that screw revolves the tight or tension revolved and the phenomenon of stripped thread that occurs in use.
As shown in Figure 4, actuating sleeve 72 and needle roller base 81 are mutually fixed and link together, and vexed button 71 is arranged on actuating sleeve 72 and needle roller base 81 and engages in the cavity that formed.Slip spring abutment 85 is provided with through hole 89, and the axial gap of this through hole 89 is greater than the diameter of steady pin 86, and steady pin 86 passes this through hole 89 and is fixedly connected with the shell of handle 1.
Stage clip telescopic regulation structure 9 comprises adjustment screw 91 and stop nut 92, slip spring abutment 85 is provided with convex shoulder accordingly with adjustment screw 91, stage clip 6 is sleeved on this convex shoulder, adjustment screw 91 controls the flexible of stage clip 85 by rotating to move left and right, and controls the active force of stage clip 6 to slip spring abutment 85 by the flexible of stage clip 6.
When the torque limit of this screw rotating tool is too little, adjustment screw 91 is moved to the left, stage clip 6 is just in further compressive state, define larger compression stress, compression stress is passed to the ball 83 on ball base 84 by slip spring abutment 85, and when ball 83 contacts with needle roller 82, its contact force becomes larger, thus the force of sliding friction between needle roller 82 and ball 83 just becomes large, the torque that extension bar 2 outwards exports also will become large thereupon; When the adjustment by adjusting screw 91 does not reach the requirement of operation, convertible thicker stage clip, reaches required moment of torsion.
When the torque limit of this screw rotating tool is too large, adjustment screw 91 moves right, stage clip 6 is just in relaxed state, define less compression stress, compression stress is passed to the ball 83 on ball base 84 by slip spring abutment 85, and when ball 83 contacts with needle roller 82, its contact force becomes less, thus the force of sliding friction between needle roller 82 and ball 83 just diminishes, the output torque of extension bar 2 also will diminish thereupon; When the adjustment by adjusting screw 91 does not reach the requirement of operation, convertible thinner stage clip, reaches required moment of torsion.
According to the requirement of different screw, extension bar 2 can be six side's extension bars, and bulb 21 is six side's bulbs in many ways, and extension bar 2 also can be cubic extension bar, from all directions extension bar, and bulb 21 also can be cubic bulb and all directions bulb in many ways.
Because the sliding friction number of times of needle roller 82 and ball 83 is more than tens thousand of times, in order to increase the frictional strength of needle roller 82, needle roller 82 is preferably wolfram steel rod.
In order to increase the service life of driver and alleviate the weight of handle, handle 1 is made up of hydronalium.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (10)
1. a hand moment of torsion screw rotating tool, comprise handle, extension bar and rear stifled, described rear blocking up is connected with the tail seal of described handle, one end of described extension bar extend in described handle, one end that extension bar stretches out described handle is set with a sleeve, it is characterized in that, the termination that described extension bar extend into the one end in described handle is bulb in many ways, cavity is provided with in the afterbody of described handle, snap-in structure is provided with in this cavity, described bulb is in many ways stuck in this snap-in structure, the left side being positioned at described snap-in structure in described cavity is provided with plane bearing assembly, in described cavity, be positioned at described snap-in structure be provided with needle roller multistation axial clutch structure near the side of described handle afterbody, a stage clip is connected with near the side of described handle afterbody in this needle roller multistation axial clutch structure, the other end of this stage clip and described rear stifled between be provided with stage clip telescopic regulation structure, sleeve comprises collet head and is arranged on the steel ball in collet head, is provided with connection plug in the junction of sleeve and extension bar.
2. a kind of hand moment of torsion screw rotating tool according to claim 1, it is characterized in that, described snap-in structure comprises vexed button and the actuating sleeve with square hole, and one end that described extension bar stretches into described handle is passed the square hole of described actuating sleeve and is stuck in termination in the described vexed button hole buckled.
3. a kind of hand moment of torsion screw rotating tool according to claim 2, it is characterized in that, described needle roller multistation axial clutch structure comprises needle roller base, needle roller, ball set, ball base, steady pin and slip spring abutment, described ball base sheath is contained on described slip spring abutment, described needle roller base is provided with the groove corresponding with described needle roller, needle roller is arranged in this groove, the diameter of needle roller is greater than the degree of depth of this groove, described ball base is provided with arc groove circumferentially, described ball set is located in this arc groove by ballframe carriage, described needle roller is corresponding with described ball to be arranged, described needle roller base is by the ball contact on needle roller and described ball base, and needle roller base can rotate in circumference relative to described ball base, described slip spring abutment is provided with through hole, the axial gap of this through hole is greater than the diameter of described steady pin, described steady pin passes this through hole and is fixedly connected with the shell of described handle.
4. a kind of hand moment of torsion screw rotating tool according to claim 3, it is characterized in that, the quantity of described ball set is even number, the peak of described ball is all in same plane, multiple circular gap is defined between ball adjacent between two in described ball base arc groove, the plurality of circular gap measure-alike, drops in this circular gap when needle roller rotates.
5. a kind of hand moment of torsion screw rotating tool according to claim 3, is characterized in that, described actuating sleeve and described needle roller base are mutually fixed and link together, and described vexed button is arranged on actuating sleeve and needle roller base and engages in the cavity that formed.
6. a kind of hand moment of torsion screw rotating tool according to claim 3, it is characterized in that, described stage clip telescopic regulation structure comprises adjustment screw and stop nut, described slip spring abutment is provided with convex shoulder accordingly with described adjustment screw, described compression spring sleeve is contained on this convex shoulder, and described adjustment screw controls the flexible of stage clip by rotating to move left and right.
7. a kind of hand moment of torsion screw rotating tool according to claim 1, is characterized in that, described bulb is in many ways six side's bulbs.
8. a kind of hand moment of torsion screw rotating tool according to claim 1, is characterized in that, described extension bar is six side's extension bars.
9. a kind of hand moment of torsion screw rotating tool according to claim 3, is characterized in that, described needle roller is wolfram steel rod.
10. a kind of hand moment of torsion screw rotating tool according to claim 1, it is characterized in that, described handle is made up of hydronalium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478416.5A CN103831773B (en) | 2012-11-21 | 2012-11-21 | A kind of hand moment of torsion screw rotating tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210478416.5A CN103831773B (en) | 2012-11-21 | 2012-11-21 | A kind of hand moment of torsion screw rotating tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103831773A CN103831773A (en) | 2014-06-04 |
| CN103831773B true CN103831773B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210478416.5A Active CN103831773B (en) | 2012-11-21 | 2012-11-21 | A kind of hand moment of torsion screw rotating tool |
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| Country | Link |
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| CN (1) | CN103831773B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105643260A (en) * | 2016-03-11 | 2016-06-08 | 赵静 | Mechanized intelligent bolt screwing device |
| JP6763574B2 (en) * | 2017-02-23 | 2020-09-30 | Ｔｏｎｅ株式会社 | Torque driver |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2183856Y (en) * | 1994-03-10 | 1994-11-30 | 邵琦 | Torque controlling fastening tool |
| DE102004061482A1 (en) * | 2004-12-21 | 2006-06-29 | Wera-Werk Hermann Werner Gmbh & Co. Kg | Screw driver, has spring whose tension is varied by rotation of adjusting unit which exerts tractive force on blade, and calibration unit arranged separately from torque delimitation unit |
| CN2836998Y (en) * | 2005-08-30 | 2006-11-15 | 王俊富 | A screw drive capable of setting torsion force |
| DE202007007759U1 (en) * | 2007-05-31 | 2007-08-02 | Chen, Chang-Ying, Ta Li | Screwdriver with coupling permitting adjustment of maximum torque transmitted, includes adjustably spring-loaded slipping ratchet mechanism |
| CN203125396U (en) * | 2012-11-21 | 2013-08-14 | 宁波德诚工具有限公司 | Hand-operated torque screw screwdriver |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7222559B2 (en) * | 2005-08-16 | 2007-05-29 | Chun Fu Wang | Screwdriver with torque setting mechanism |
-
2012
- 2012-11-21 CN CN201210478416.5A patent/CN103831773B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2183856Y (en) * | 1994-03-10 | 1994-11-30 | 邵琦 | Torque controlling fastening tool |
| DE102004061482A1 (en) * | 2004-12-21 | 2006-06-29 | Wera-Werk Hermann Werner Gmbh & Co. Kg | Screw driver, has spring whose tension is varied by rotation of adjusting unit which exerts tractive force on blade, and calibration unit arranged separately from torque delimitation unit |
| CN2836998Y (en) * | 2005-08-30 | 2006-11-15 | 王俊富 | A screw drive capable of setting torsion force |
| DE202007007759U1 (en) * | 2007-05-31 | 2007-08-02 | Chen, Chang-Ying, Ta Li | Screwdriver with coupling permitting adjustment of maximum torque transmitted, includes adjustably spring-loaded slipping ratchet mechanism |
| CN203125396U (en) * | 2012-11-21 | 2013-08-14 | 宁波德诚工具有限公司 | Hand-operated torque screw screwdriver |
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| Publication number | Publication date |
|---|---|
| CN103831773A (en) | 2014-06-04 |
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Address after: 315100 Fengcheng village, jishigang Town, Haishu District, Ningbo City, Zhejiang Province Patentee after: NINGBO DECHENG TOOLS Co.,Ltd. Address before: 315100 Fengcheng village, jishigang Town, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: NINGBO DECHENG TOOLS Co.,Ltd. |
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