CN2538494Y - Torque adjustable portable electric wrench - Google Patents
Torque adjustable portable electric wrench Download PDFInfo
- Publication number
- CN2538494Y CN2538494Y CN 02232660 CN02232660U CN2538494Y CN 2538494 Y CN2538494 Y CN 2538494Y CN 02232660 CN02232660 CN 02232660 CN 02232660 U CN02232660 U CN 02232660U CN 2538494 Y CN2538494 Y CN 2538494Y
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- CN
- China
- Prior art keywords
- travelling gear
- torque
- flywheel assembly
- portable electric
- electric wrench
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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 - Fee Related
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates o a modified portable electric wrench belonging to the field of electric tools, which mainly comprises a flywheel assembly (mounted onto a principal shaft through a bearing and other supporting elements), a multifunction drive gear, a digital grating signal panel, a digital collection and control circuit arranged towards the digital grating signal panel, a reversible motor (A motor gear is arranged for an output terminal of the motor) and other main parts. The utility model has the advantages of rational structure, mature production technique, reliable technology, simple structure, high efficiency, power saving, easy operation, lower cost, controllable output torque and wider applicable scope, meets working conditions featuring specified requirements for bearing capacity of fastening pieces, easily forms large-scale production and brings broad market demands.
Description
The utility model is about field of power tools, refers more particularly to the improvement of portable electric wrench, is a kind of simple in structure, high efficiency, power saving, the controlled controllable torque portable electric wrench of particularly output torque simple to operate and with low cost.
Commonly use portable electric wrench as No. 00216188.5 patent of number of patent application shown in accompanying drawing one, comprise flywheel assembly 203 by support members such as bearing be installed on the main shaft 206, the gear 203 of motor 201 and motor gear (summary) and flywheel
*Engagement also is placed on the support 202, is placed in the housing (summary) together by the axle sleeve on the main shaft 206 210 again.In driven by motor flywheel when rotation, be focused energy gradually, and what enough centrifugal force made that slide block 205 overcomes spring 204 and compressing tablet 208 when reaching certain rotating speed constrains in rotation on the pivot pin 207 (sense of rotation is identical with flywheel 203 direction of rotation) and main shaft projection 206
*Collide, the energy that gathers is done abrupt release, to reach the purpose of unclamping or locking working substance, its volume is little, in light weight, adopt 12 volts of dc sources, maximum energy consumption is below 100 watts, portable appearance structure, can be suitable for multiple bolt, nut, easy to usely advantage such as be easy to carry again, but there is the dead angle in the design in it, cause to be cut off or the danger of potential internal injury, in addition at slide block 205 and main shaft projection 206 to the working substance that is locked
*The moment motor electric current that is obstructed of colliding can produce transient peak and makes power supply circuits impaired, and the security of use causes anxiety, and the inhomogeneous application of force that hollow design and asymmetric slider designs caused of its flywheel main body all can influence its service life again, design no all roses.
This shows that the above-mentioned article of commonly using are had a liking for and waited to be improved.
The purpose of the utility model promptly is to provide a kind of controllable torque portable electric wrench, its inner simple digital control circuit that increases, only need simple operations can set the output torque value range satisfying the torque demand of different operating thing during use, its applicable surface is wider and can satisfy the fastener torque ability to bear working environment that explicitly calls for is arranged.As long as it is the securing member that normal running just can effectively be avoided being locked may be cut off or the danger of potential internal injury, more efficient, safe, reliably.
Another purpose of the utility model promptly is to provide a kind of controllable torque portable electric wrench; key design second of motor outage when adopting spring buffer and output torque in its power transmission course thoroughly avoids the generation of motor instantaneous peak current to make power supply circuits be able to effective protection.
The another purpose of the utility model is to provide a kind of controllable torque portable electric wrench, its design symmetry is that the generation and the output of moment of torsion is more stable, reliable, all disadvantages of having avoided the inhomogeneous application of force and having produced, more since between the chute on impact hammer and the flywheel the accurate design of size make between each part stressed rationally, the best connection status of normal guarantor effectively improves service life between each part.
The utility model purpose again is to provide a kind of controllable torque portable electric wrench, and its assembling is simple, rational in infrastructure, and control reliably is useful on the working substance of various sizes and different torque demands, and the convenience of carrying increases the flexibility of using.
A kind of controllable torque portable electric wrench of the utility model comprises:
Flywheel assembly, this assembly is installed on the main shaft by support members such as bearings, symmetry is convexly equipped with main-shaft torque and accepts the port in this main shaft and the flywheel assembly, and main-shaft torque accept the port directly over corresponding a pair of impact hammer, each impact hammer is provided with the little axle of limitation locking;
Multi-functional travelling gear which is provided with: limitation locking groove, transmission shift fork, travelling gear cooperate unsteady being placed on the flywheel assembly end face by the support member bearing, and the active section of the little axle of limitation locking are correctly placed in the limitation locking groove with main shaft;
Travelling gear buffering, reduction torsion spring is fixed in the spring base that is provided with on the flywheel assembly end plates, and two active sections of travelling gear buffering, reduction torsion spring are stuck on the multi-functional travelling gear in the locating slot of set transmission shift fork both sides;
The digital raster signal plate is oppositely arranged digital collection and control circuit with the coral lattice;
Reversible motor, its output has a motor gear;
A kind of controllable torque portable electric wrench of the utility model is characterized in that:
Flywheel assembly inner impact hammer is provided with the little axle of limitation locking and passes flywheel assembly end plates extension to the multi-functional travelling gear in the set limitation locking groove, limitation locking groove on the travelling gear is hierarchic structure radially, and the position of ladder end face little axle of locking limitation locking when main shaft produces relative displacement at multi-functional travelling gear and flywheel assembly.
A kind of controllable torque portable electric wrench, wherein travelling gear buffering, reduction torsion spring are fixed on the spring base that is provided with on the flywheel assembly end plates, and two active sections of travelling gear buffering, reduction torsion spring are stuck on the multi-functional travelling gear in the locating slot of set transmission shift fork both sides.
A kind of controllable torque portable electric wrench, wherein flywheel assembly and multi-functional travelling gear float to cooperate and can produce relative displacement around main shaft.
A kind of controllable torque portable electric wrench, wherein moment of torsion output control mode is derived from the loading and unloading of active force.
A kind of controllable torque portable electric wrench, wherein moment of torsion output control instruction judge by digital grating signal plate is signaled by digital collection and control circuit and compare with the set fixation of torque adjustment potentiometer after provide.
Below in conjunction with accompanying drawing the utility model is set forth:
Accompanying drawing one is for commonly using No. 00216188.5 patent of portable electric wrench such as number of patent application
Accompanying drawing two is the three-dimensional assembling explosive view of internal core (shell figure the is slightly) device of the utility model controllable torque portable electric wrench:
Accompanying drawing three is the driving member three-dimensional assembly diagram of internal core (shell figure the is slightly) device of the utility model controllable torque portable electric wrench:
Accompanying drawing four is the impact hammer working condition partial perspective view of internal core (shell figure the is slightly) device of the utility model controllable torque portable electric wrench:
Accompanying drawing five is the control circuit schematic isometric of internal core (shell figure the is slightly) device of the utility model controllable torque portable electric wrench:
The major part symbology:
Main shaft location axle sleeve
The digital raster signal plate
Main shaft
Main-shaft torque is accepted port (symmetric arrays)
The ccontaining stopper slot of flywheel main body impact hammer
The impact hammer location axle pin
Travelling gear buffering, reduction torsion spring
Impact hammer
Flywheel assembly end plates spring base
Multi-functional travelling gear limitation locking groove transmission shift fork travelling gear
Fixed support
Reversible motor
Motor gear
Fastening bolt
The little axle of limitation locking
Power supply
Gauge tap
The torque adjustment potentiometer
Digital collection and control circuit
Feelings are consulted accompanying drawing two (shell slightly), the utility model a kind of controllable torque portable electric wrench is provided, mainly by main shaft 3, this main shaft 3 is provided with a pair of main-shaft torque of symmetry and accepts the port, by support member bearing (summary) with flywheel main body 5, digital raster signal plate 2 is installed on the main shaft 3, a pair of impact hammer 8 (being equipped with the little axle 15 of limitation locking on it) cooperates in the ccontaining stopper slot 51 of the impact hammer that is installed on the flywheel main body 5 with 6 groups of impact hammer location axle pin and back by impact hammer location axle pin 6 with flywheel main body 5 locating holes, and a pair of impact hammer 8 be suspended in main-shaft torque accept port 4 directly over, after support member bearing (summary) and main shaft 3 cooperates and lock with corresponding screwed hole on 4 fastening bolts 14 and the digital raster signal plate 2, be combined into flywheel assembly by flywheel assembly end plates 9 again.Multi-functional travelling gear 10 lock slots 101 of limiting on it, transmission shift fork 102, travelling gear 103, cooperate unsteady being placed on the flywheel assembly end plates 9 with main shaft 3 by support member bearing (summary), and the active section of the little axle 15 of limitation locking is correctly placed in the limitation locking groove 10, travelling gear cushions again, reduction torsion spring 7 is fixed in the spring base 91 that is provided with on the flywheel assembly end plates 9, the travelling gear buffering, two active sections of reduction torsion spring 7 are stuck on the multi-functional travelling gear 10 in the set transmission shift fork 102 both sides locating slots, more than the correct back of each part assembling pass through support member bearing by support member bearing (summary) with reversible motor 12 (press-fiting travelling gear 103 correct engagement on motor gear 13 and the multi-functional travelling gear 10 on it) by main shaft 3 as parts and securing member screw (summary) installs on fixed support 11, main shaft location axle sleeve 1 is installed on the last main shaft 3 is assemblied in the housing (summary), in addition with gauge tap 17 with the whole mechanical component of fixed support 11 supports, torque adjustment potentiometer 18, the tram is installed respectively for digital collection and control circuit 19 and the assembling of the complete controllable torque so far of line portable electric wrench is finished.
See also figure three, figure four, figure five, torque adjustment potentiometer 18 is adjusted to the required torque parameter value, open gauge tap 17 and connect power supply (DC12v dc source), reversible motor 12 (press-fiting motor gear 13 on it) is rotated and to be sent power on the multi-functional travelling gear 10 travelling gear 103, transmission shift fork 102 forces in the travelling gear buffering on the multi-functional travelling gear 10, reduction torsion spring 7, cushion at travelling gear, in the strain buffer area of reduction torsion spring 7, multi-functional travelling gear 10 produces relative displacement with flywheel assembly around main shaft 3, and the central point far away which is provided with on the limitation locking groove 101 when multi-functional travelling gear 10 moves to the active section below of the little axle 15 of the limitation locking that assembles on the impact hammer 8 and it is produced the function of limitation locking, it is locked around the relative displacement that main shaft 3 produces with flywheel assembly to finish the multi-functional travelling gear 10 of power transmit buffering simultaneously.
Multi-functional travelling gear 10 (comprises that flywheel main body 5 which is provided with the ccontaining stopper slot 51 of impact hammer with flywheel assembly under dynamic action, a pair ofly be suspended in the impact hammer 8 that main-shaft torque accepts directly over the port 4 and be equipped with the little axle 15 of limitation locking on it, flywheel assembly end plates 9 and digital raster signal plate 2) gradually quicken rotation from low to height around main shaft 3 by support member bearing (summary), consequent centrifugal force can make a pair of be suspended in main-shaft torque accept port 4 directly over impact hammer 8 desire around impact hammer location axle pin 6 rotation is arranged, but the function of this desire by the limitation locking of the little axle 15 of limitation locking of assembling on 101 pairs of impact hammers 8 of set limitation locking groove on the multi-functional travelling gear 10 retrains and can't realize.
When reaching when setting parameter value (by being fixed in the housing and placing the digital collection of digital raster signal plate 2 gratings below and control circuit 19 is judged and sent instruction) by torque adjustment potentiometer 18, reversible motor 12 momentary power failure certain hours, active force is lost multi-functional travelling gear 10 and is gone up set limitation locking groove 101 and cushion by travelling gear at this moment, the reaction force of transmission shift fork 102 on 7 pairs of multi-functional travelling gears 10 of reduction torsion spring and return, multi-functional travelling gear 10 resets around the relative displacement that main shaft 3 produces with flywheel assembly, this moment, multi-functional travelling gear 10 which is provided with the constraint disappearance of the little axle 15 of limitation locking of assembling on 101 pairs of impact hammers 8 of limitation locking groove, simultaneously since rotatory inertia effect flywheel assembly at a high speed with assemble gradually than macro-energy a pair of be suspended in main-shaft torque accept port 4 directly over a pair of impact hammer 8 accept port 4 bumps around 6 rotations of impact hammer location axle pin and under the ccontaining stopper slot 51 obverse effects of the impact hammer on the flywheel main body 5 with main-shaft torque, the energy that gathers is done abrupt release sets moment of torsion output to reach for main shaft 3, after once acting is finished, repeat aforementioned course of work several times to reach the purpose (the assurance achievement is safe and reliable) of unclamping or lock working substance according to setting service restoration (once connecting under the situation that power supply do not disconnect) with same torque output, automatically cut off the electricity supply by digital collection and control circuit 19 controls, in order to avoid extraordinary time service is to the damage of this controllable torque portable electric wrench and working substance.When connecting power supply, gauge tap 17 just can normally carry out a new operation when opening once more.
The torque adjustable portable electric wrench that the utility model provided is commonly used skill with aforementioned other When art compares mutually, have following significantly having a few.
1, the utility model is because its inner simple digital control circuit that increases only needs letter during use Single operation can be set the output torque value range to satisfy the torque demand of different operating thing, and it is suitable for Face is wider and can satisfy the fastener torque ability to bear working environment that explicitly calls for is arranged. As long as just The securing member that normal operation just can effectively be avoided being locked may be cut off or the danger of potential internal injury, more Be efficient, safety, reliable.
Motor when 2, adopting spring buffer and output torque in its power transmission process of the utility model The wonderful design of the key of outage thoroughly avoids the generation of motor instantaneous peak current that power supply circuits are had The effect protection, and the motor outage overcomes when impact hammer 8 bump main-shaft torque are accepted port 4 simultaneously by heavy The vibrations that the bump resilience that the power acceleration is produced and active force synchronous effect are produced avoid reversible The accident that the part such as motor and motor gear is damaged effectively prolongs life of product.
3, the utility model design symmetry be moment of torsion generation and output more stable, reliable, keep away All disadvantages of having exempted from the inhomogeneous application of force and having produced are more owing to chi between the chute on impact hammer and the flywheel Very little accurate design makes reasonable stress between each part, thereby the normal Best link state of protecting gets between each part To reach best shock-proof effect, give the comfort of operation.
Claims (5)
1, a kind of controllable torque portable electric wrench comprises:
One flywheel assembly, this assembly is installed on the main shaft by support members such as bearings, symmetry is convexly equipped with main-shaft torque and accepts the port in this main shaft and the flywheel assembly, and main-shaft torque accept the port directly over corresponding a pair of impact hammer, each impact hammer is provided with the little axle of limitation locking;
One multi-functional travelling gear which is provided with: limitation locking groove, transmission shift fork, travelling gear cooperate with main shaft to float by the support member bearing to be placed on the flywheel assembly end face and the active section of the little axle of limitation locking is correctly placed in the limitation locking groove;
One travelling gear buffering, reduction torsion spring is fixed in the spring base that is provided with on the flywheel assembly end plates, and two active sections of travelling gear buffering, reduction torsion spring are stuck on the multi-functional travelling gear in the locating slot of set transmission shift fork both sides;
One digital raster signal plate is oppositely arranged digital collection and control circuit with the coral lattice;
One reversible motor, its output has a motor gear;
It is characterized in that:
Flywheel assembly inner impact hammer is provided with the little axle of limitation locking and passes flywheel assembly end plates extension to multi-functional travelling gear and be provided with in the limitation locking groove, limitation locking groove on the travelling gear is hierarchic structure radially, and the position of ladder end face little axle of locking limitation locking when main shaft produces relative displacement at multi-functional travelling gear and flywheel assembly.
2, according to the described controllable torque portable electric wrench of claim 1, wherein travelling gear buffering, reduction torsion spring are fixed on the spring base that is provided with on the flywheel assembly end plates, and two active sections of travelling gear buffering, reduction torsion spring are stuck on the multi-functional travelling gear in the locating slot of set transmission shift fork both sides.
3, according to the described controllable torque portable electric wrench of claim 1, wherein flywheel assembly and multi-functional travelling gear float to cooperate and can produce relative displacement around main shaft.
4, according to the described controllable torque portable electric wrench of claim 1, wherein moment of torsion output control mode is derived from the loading and unloading of active force.
5, according to the described controllable torque portable electric wrench of claim 1, wherein moment of torsion output control instruction judge by digital grating signal plate is signaled by digital collection and control circuit and compare with the set fixation of torque adjustment potentiometer after provide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232660 CN2538494Y (en) | 2002-05-14 | 2002-05-14 | Torque adjustable portable electric wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02232660 CN2538494Y (en) | 2002-05-14 | 2002-05-14 | Torque adjustable portable electric wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2538494Y true CN2538494Y (en) | 2003-03-05 |
Family
ID=33707995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02232660 Expired - Fee Related CN2538494Y (en) | 2002-05-14 | 2002-05-14 | Torque adjustable portable electric wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2538494Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733722B (en) * | 2009-12-09 | 2013-05-22 | 夏新财 | Multi-functional speeder wrench and operation method thereof |
| CN107217714A (en) * | 2017-07-25 | 2017-09-29 | 厦门立业卫浴工业有限公司 | A kind of spanner structure of torsion spring and closestool with the torsion spring |
| CN110842840A (en) * | 2019-12-30 | 2020-02-28 | 贵州永昌福科技有限公司 | Labor-saving quick wrench |
| CN111203708A (en) * | 2020-02-20 | 2020-05-29 | 安徽九州云箭航天技术有限公司 | Turbine pump assembling support and turbine pump assembling method |
| CN111590503A (en) * | 2020-06-05 | 2020-08-28 | 邹鑫 | Pneumatic impact wrench |
| CN114654431A (en) * | 2020-12-24 | 2022-06-24 | 喜利得股份公司 | Torque intensifier for impact tool |
-
2002
- 2002-05-14 CN CN 02232660 patent/CN2538494Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733722B (en) * | 2009-12-09 | 2013-05-22 | 夏新财 | Multi-functional speeder wrench and operation method thereof |
| CN107217714A (en) * | 2017-07-25 | 2017-09-29 | 厦门立业卫浴工业有限公司 | A kind of spanner structure of torsion spring and closestool with the torsion spring |
| CN110842840A (en) * | 2019-12-30 | 2020-02-28 | 贵州永昌福科技有限公司 | Labor-saving quick wrench |
| CN111203708A (en) * | 2020-02-20 | 2020-05-29 | 安徽九州云箭航天技术有限公司 | Turbine pump assembling support and turbine pump assembling method |
| CN111203708B (en) * | 2020-02-20 | 2020-11-24 | 安徽九州云箭航天技术有限公司 | Turbine pump assembling support and turbine pump assembling method |
| CN111590503A (en) * | 2020-06-05 | 2020-08-28 | 邹鑫 | Pneumatic impact wrench |
| CN111590503B (en) * | 2020-06-05 | 2021-10-22 | 郑玲佳 | Pneumatic impact wrench |
| CN114654431A (en) * | 2020-12-24 | 2022-06-24 | 喜利得股份公司 | Torque intensifier for impact tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |