CN203141397U - Electric wrench - Google Patents
Electric wrench Download PDFInfo
- Publication number
- CN203141397U CN203141397U CN2013200923031U CN201320092303U CN203141397U CN 203141397 U CN203141397 U CN 203141397U CN 2013200923031 U CN2013200923031 U CN 2013200923031U CN 201320092303 U CN201320092303 U CN 201320092303U CN 203141397 U CN203141397 U CN 203141397U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- gear
- opening
- electric wrench
- annex
- Prior art date
- 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.)
- Withdrawn - After Issue
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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
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gear Transmission (AREA)
- Retarders (AREA)
Abstract
The utility model discloses an electric wrench, comprising a casing, a power part, a reversing mechanism, a support transmission component, an aperture gear, an attachment and an elastic connecting piece, wherein the casing comprises two oppositely-arranged clamp claws, a jaw is formed between the two clamp claws; the power part, the reversing mechanism, the support transmission component and the aperture gear are sequentially connected and accommodated in the casing; the aperture gear is arranged in a mounting part and can rotate in the mounting part; the aperture gear comprises an outer tooth part meshed with a support transmission component, an opening corresponding to the jaw, and a collecting part communicated with the opening; and the attachment can be mounted in the collecting part in a locking manner, an accommodating slot is arranged in the collecting part, the outer side wall of the attachment is provided with a collecting slot corresponding to the accommodating slot, a limit part communicated with the accommodating slot is arranged on the aperture gear, a limit end is correspondingly arranged at one end of the elastic connecting piece, and the limit end is mounted in the limit part to prevent the elastic connecting piece from moving out of the accommodating slot. The electric wrench is simple and convenient to operate, low in working intensity and is high in working efficiency.
Description
Technical field
The present invention relates to a kind of electric tool, particularly a kind of electric wrench.
Background technology
Spanner has a wide range of applications in daily life, and it normally is used for tightening or unscrewing screw, nut.Spanner commonly used has two kinds of open-end wrench and ratchet spanneres.General open-end wrench can be put into screw element from the lateral opening of spanner, but it is tightening or is unscrewing in the operation, after being rotated a less corner, just spanner need be taken off from screw element screw element, and then spanner is changed angle be placed on the screw element to be rotated further, this process will be repeated repeatedly usually, tightened fully or unclamped until screw element, therefore operation inconvenience, and open-end wrench generally is not suitable for using in some narrow spaces.The nip part of ratchet spanner is generally enclosed construction, and therefore will realize tightening or unscrewing screw element needs ratchet spanner is entangled screw element from top or the bottom of screw element, uses inconvenience.Be the convenience of increasing work efficiency and using, occurred some electric wrenches on the market, yet the working head of these electric wrenches is generally enclosed construction, so only can under the short situation of bolt, use usually.In auto repair or house ornamentation industry, the long situation of a lot of bolts is arranged, existing electric wrench must cooperate long sleeve to use, and has reduced the convenience that uses like this.In addition, common electric wrench twist with tubular workpiece (for example water pipe, oil pipe) cooperate nut the time more inconvenient, even can't use common electric wrench to carry out operation.
Summary of the invention
The utility model purpose is to provide a kind of and can uses and easy to operate electric wrench at narrow space.
For achieving the above object, the utility model provides a kind of electric wrench, being used for driving screw element rotates, the annex that it comprises wrench body and is used for cooperating with screw element, described wrench body comprises housing, power part and changement, described wrench body also comprises support transmission component and opening gear, described housing comprises grip part and the installation portion that is extended along its length by grip part one end, described installation portion comprises two chelas that are oppositely arranged, be formed with jaw between two chelas, described power part, changement, support transmission component and opening gear connect successively and are contained in the described housing, its split shed gear is arranged in the described installation portion and can rotates in installation portion, described opening gear comprises and supports the outer toothed portion that transmission component is meshed, the opening corresponding with described jaw and the resettlement section that communicates with opening, the width of described jaw and described opening is more than or equal to diameter or the width of the tubulose that cooperates with described screw element or column object, described annex can be installed in to spline in the resettlement section of described opening gear, the resettlement section of described opening gear is along the circumferential holding tank that is provided with, the lateral wall of described annex is along circumferentially being provided with the accepting groove corresponding with holding tank, described electric wrench also comprises Flexible Connector, described Flexible Connector can be contained in the formed receiving space of accepting groove of the holding tank of opening gear and annex annex be connected in the opening gear and prevent that annex from sliding vertically, contiguous holding tank one end place also offers the limiting section that communicates with holding tank on the interior composition surface of opening gear, the corresponding positive stop end that is provided with on one end of Flexible Connector, the positive stop end of Flexible Connector are installed in the described limiting section to prevent that Flexible Connector from deviating from holding tank.
Preferably, described resettlement section comprises the interior composition surface that is arranged on the opening gear inwall, described annex comprises the outer engagement surface that is arranged on its lateral wall, composition surface and described outer engagement surface all are roughly cylindric in described, be formed with a plurality of ribs of radially inwardly giving prominence in described on the composition surface, described rib also evenly is arranged on the interior composition surface of opening gear along the extension of opening Gear axis direction; Be formed with a plurality of recesses corresponding with rib on the described outer engagement surface, described recess extends on the interior composition surface of the annex of also evenly arranging along the annex axis direction.
Preferably, described annex is open sleeve, and described holding tank is C shape groove, and described Flexible Connector is roughly C shape, and described accepting groove is a plurality of deep-slotted chip breakers that are positioned on the same circumference.
Preferably, described housing is " one " font structure, it comprises the main casing that longitudinally extends and the support housing that is extended by main casing one end, one end of support housing is fixedly mounted in the main casing, the other end extends to the main casing outside along the shell length direction, installation portion is formed on described support housing away from an end of main casing, installation portion comprises two chelas that are oppositely arranged, two chelas are roughly curved, be formed with an accommodation hole and a jaw that communicates with accommodation hole between two chelas, accommodation hole is used for the construction opening gear.
Preferably, described changement is ratchet mechanism or bevel gear mechanism, also is provided with reducing gear between described power part and the changement, and the power that described power part provides passes to changement after slowing down by reducing gear.
Preferably, described changement is ratchet mechanism, and it comprises eccentric shaft, swing component, ratchet and ratchet, and described eccentric shaft is articulated on the described support housing, and eccentric shaft joins by the output shaft of reducing gear and power part; Described ratchet is articulated on the described swing component, the inner ring of described ratchet is provided with the hook tooth with click-fit, the outer ring of described ratchet also is provided with and supports the external toothing that transmission component matches, the pivot that ratchet can wind under the drive of swing component perpendicular to plane, described swing component place rotates along first direction or second direction, when described ratchet rotated along first direction, ratchet just inserted hook tooth and rotates in the same way to promote ratchet; When described ratchet rotated along second direction, ratchet streaked at ratchet, and ratchet stops operating.
Preferably, described power part comprises motor and the power supply of powering to motor, described reducing gear is planetary gear reducing mechanism, it comprises planetary gear, ring gear, planet carrier and central gear, central gear is connected with the output shaft spline of motor, and planetary gear is meshed with central gear and ring gear respectively, and wherein ring gear is fixedly mounted on and supports on the housing, planetary gear rotation under the drive of central gear, and along the output shaft revolution of ring gear around motor; The corresponding planet pin that is set with protrusion on the planet carrier, planetary gear is sleeved on the planet pin and can rotates relative to planet pin, and described planet carrier is connected with the eccentric shaft spline.
Preferably, described changement comprises commutator, described commutator includes rotating shaft, elastic parts reaches to dial and turns round, described swing component is articulated on the described support housing by rotating shaft, described elastic parts one end supports in rotating shaft, the other end and described ratchet offset, described ratchet comprises along the symmetrically arranged first ratchet portion of pivot and the second ratchet portion, described elastic parts rotates under rotating shaft drives, and offset with the first ratchet portion or the second ratchet portion, turn round spline for described group and be connected in the described rotating shaft, so that described group turned round and can drive rotating shaft and rotate to change elastic parts support the position on ratchet, thereby realize commutation function; Described elastic parts comprises stage clip and hollow pins, and described rotating shaft is provided with putting hole, and wherein stage clip one end is connected to the inwall of hollow pins, and the other end is contained in the putting hole of rotating shaft, and described hollow pins offsets with ratchet under the effect of stage clip.
Preferably, described swing component comprises swing body and the over cap that cooperates with the swing body, described ratchet is installed between swing body and the over cap, be provided with shaft hole on swing body and the over cap, described ratchet arranges with shaft hole is concentric, all be provided with pilot hole on described swing body and the over cap relatively, be contained in the pilot hole described swing body and over cap is fixedly connected by screw, the shaft hole of described swing body and over cap is passed in described rotating shaft so that swing body and over cap can rotate by the phase countershaft, and described rotating shaft two end supports is on support housing and can rotate relative to support housing; At least one parts is equipped with round boss in the side near another parts in swing body and the over cap; wherein shaft hole is arranged on the center of round boss; described pilot hole is arranged on the round boss; also be provided with on the round boss for pivoting the pivot hole of ratchet is installed, pivot hole and pilot hole lay respectively at the circumferential both sides of round boss.
Preferably, described support transmission component comprises two drives, and each drive both sides is meshing with each other with opening gear and changement respectively, and the opening size of opening gear is less than the maximum engagement distance between two drives and the opening gear; Described electric wrench also comprises Control Component, described Control Component comprises main switch, reset switch, switch drive part and circuit board, wherein main switch, reset switch are oppositely arranged on the both sides, grip part of housing, described switch drive part is arranged between main switch and the reset switch, and circuit board is provided with the control circuit that rotates for the control motor.
The utility model is by offering and the jaw corresponding opening at the opening gear, thereby screw element can be set in the opening gear by installation portion, tighten or unclamp action, thereby make electric wrench of the present utility model under the long situation of some bolts, or can both be convenient to use under the situation when twisting the nut of band pipeline etc.And with changement as the commutation transmission mechanism, and provide power by motor, in use, only screw element need be put into and start electric wrench of the present utility model in the opening gear then, under the situation that does not need roll-shell, can realize tightening or unscrewing of screw element, simple to operation, and working strength is little, high efficiency, also can conveniently use in narrow operating space, and the opening gear is by the tightening or unscrewing of screw element that cooperates to satisfy different size of Flexible Connector and annex spline, the positive stop end of Flexible Connector is installed in the described limiting section to prevent that Flexible Connector from deviating from holding tank, thereby prevents that Flexible Connector and opening from interfering.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the electric wrench of the utility model embodiment;
Fig. 2 is annex and the opening gear schematic diagram of the utility model embodiment;
Fig. 3 is the structural representation after the electric wrench of the utility model embodiment removes shell body and upper support frame;
Fig. 4 removes the structural representation behind the over cap of swing component for Fig. 3;
Fig. 5 is the three-dimensional exploded view of the electric wrench housing of the utility model embodiment;
Fig. 6 is the electric wrench motor of the utility model embodiment and the three-dimensional exploded view of reducing gear;
Fig. 7 is the three-dimensional exploded view of the electric wrench changement of the utility model embodiment;
Fig. 8 is the front view after the electric wrench of the utility model embodiment removes housing;
Fig. 9 is the electric wrench opening gear operation schematic diagram of the utility model embodiment;
Figure 10 is that the electric wrench opening gear operation of the utility model embodiment is to the schematic diagram of other direction;
Figure 11 is the use view of the electric wrench of the utility model embodiment.
The specific embodiment
In order more to understand technology contents of the present utility model, especially exemplified by the specific embodiment and cooperate appended graphic being described as follows.
Please refer to Fig. 1, a kind of electric wrench 100 comprises wrench body 10 and annex 20.
Please refer to Fig. 2 and Fig. 4 wherein wrench body 10 comprise housing 11, power part 13, reducing gear 14, changement 15, support transmission component 17, opening gear 18 and Control Component 19.
Please also refer to Fig. 5, in the present embodiment, main casing 110 comprises first shell body 1101 and second shell body 1102, clamping mutually between first shell body 1101 and second shell body 1102, and it is fastening with screw, be formed with container cavity (figure is mark not) between first shell body 1101 and second shell body 1102, to hold an end of power part 13, reducing gear 14 and support housing 111.Also can adopt modes such as interference is connected, snapping, grafting, pin connection between first shell body 1101 and second shell body 1102, so long as first shell body 1101 and second shell body, 1102 connected modes fastening and easy accessibility all should be able to be belonged to protection domain of the present utility model.
One end of support housing 111 is formed with installation portion 1111, installation portion 1111 comprises two chelas that are oppositely arranged 1112, two chelas 1112 are roughly curved, be formed with an accommodation hole (figure is mark not) and a jaw that communicates with accommodation hole 1113 between two chelas 1112, accommodation hole is used for construction opening gear 18.One end of support housing 111 is fixedly mounted in the main casing 110, the other end extends to main casing 110 outsides along housing 11 length directions, the intensity of electric wrench 10 of the present utility model when guaranteeing manual operation, first end of support housing 111 extends to the grip part 112 of housing 11.In the present embodiment, support housing 111 comprises first bracing frame 1114 and second bracing frame 1115, the aluminum component that first bracing frame 1114 is formed in one or hot investment casting part, second bracing frame 1115 is the lid corresponding with first bracing frame, 1114 structures, first bracing frame 1114 and the 1115 mutual clampings of second bracing frame, make electric wrench 10 compact conformations of the present utility model and torsional strength height like this, thereby can be used for transfer larger torque.
In operating process, electric wrench 10 can overlap from the side by jaw 1113 and install on the screw element, tighten then or unclamp action, thereby make electric wrench 10 of the present utility model under the long situation of some bolts, or when twisting the nut of band pipeline, or can both be convenient to use under the situation such as the operating space is narrower.
Please refer to Fig. 6, the transmission of power that reducing gear 14 is used for power part 13 is provided is to changement 15, and its clutch end links to each other with changement 15.Reducing gear 14 is arranged between power part 13 and the changement 15 rotating speed for reducing motor 130, improves moment of torsion.
In order to make the structure of electric wrench 10 compacter, can transfer larger torque, and have higher transmission efficiency, in the present embodiment, reducing gear 14 is planetary gear reducing mechanism, and it comprises planetary gear 140, ring gear 141, planet carrier 142 and central gear 143.
Please refer to Fig. 3 and Fig. 7, in the present embodiment, changement 15 is ratchet mechanism, comprises eccentric shaft 150, swing component 151, ratchet 152 and ratchet 153.One end of eccentric shaft 150 is connected with planet carrier 142 splines, the other end of eccentric shaft 150 is provided with eccentric part (figure is mark not), and eccentric part and swing component 151 join that motor output shaft is converted into swing component 151 around the reciprocally swinging of its pivotal axis around rotatablely moving of axis.Swing component 151 is articulated on the support housing 111, and swing component 151 is provided with and the corresponding recess 1510 of the eccentric part of eccentric shaft 150, is set with the actuating sleeve 1501 that cooperates with groove 1510 on the eccentric part.Actuating sleeve 1501 is around the rotation of the central axis off-centre of eccentric shaft 150, and in the process of its eccentric rotary, actuating sleeve 1501 drives the reciprocally swinging of swing component 151 around the pivotal axis cycle.
Be appreciated that changement 15 also can be bevel gear mechanism, bevel gear mechanism two ends respectively with reducing gear 14 and support transmission component 17 link to each other with transmission of power to support transmission component 17.
Be appreciated that, because itself can playing, changement 15 slows down preferably and the effect that increases moment of torsion, therefore also can omit reducing gear 14, directly the output shaft by motor 130 links to each other with the eccentric shaft 150 of changement 15 or form and swing component 151 that the output shaft of motor 130 is designed to eccentric shaft is cooperatively interacted, and realizes the function of changement 15 transferring power.
Ratchet 152 is articulated on the swing component 151, ratchet 153 is provided with the hook tooth 1530 that cooperates with ratchet 152, the pivot axis that ratchet 152 can wind under the drive of swing component 151 perpendicular to plane, described swing component 151 place rotates along first direction or second direction, when described ratchet 152 rotated along first direction, ratchet 152 just inserted hook tooth 1530 and rotates in the same way to promote ratchet 153; When described ratchet 152 rotated along second direction, ratchet 152 streaked at ratchet 153, and ratchet 153 stops operating.
Please refer to Fig. 4, in order to make the structure of the utility model electric wrench 10 compacter, changement 15 is internal gearing structure, and hook tooth 1530 is arranged on ratchet 153 inner rings, and the outer ring of ratchet 153 also is provided with and supports the external toothing 1531 that transmission component 17 matches.
Please refer again to Fig. 7, change the rotation direction of ratchet 153 for convenience, changement 15 also comprises commutator 154, commutator 154 includes rotating shaft 1540, elastic parts 1541 and dials and turn round 1542, swing component 151 is articulated on the support housing 111 by rotating shaft 1540, elastic parts 1,541 one ends are fixedly connected in the rotating shaft 1540, the other end and ratchet 152 offset, ratchet 152 comprises the symmetrically arranged first ratchet portion 1520 and the second ratchet portion 1521, and elastic parts 1541 can offset with the first ratchet portion 1520 or the second ratchet portion 1521 under rotating shaft 1540 drives; When elastic parts 1541 and the first ratchet portion 1520 offset, when ratchet 152 rotates along first direction, the first ratchet portion 1520 just inserts hook tooth 1530 and rotates in the same way to promote ratchet 153, when ratchet 152 rotates along second direction, the first ratchet portion 1520 streaks at ratchet 153, and ratchet 153 stops operating; When elastic parts 1541 and the second ratchet portion 1521 offset, when ratchet 152 rotates along second direction, the second ratchet portion 1521 just inserts hook tooth 1530 and rotates in the same way to promote ratchet 153, when ratchet 152 rotates along first direction, the second ratchet portion 1521 streaks at ratchet 153, and ratchet 153 stops operating.Dial and to turn round 1542 splines and be connected in the rotating shaft 1540, turn round 1542 rotations that can drive rotating shaft 1540 by dialling, elastic parts 1541 is supported in the first ratchet portion 1520 or the second ratchet portion 1521, thereby realize commutation function.
Wherein, elastic parts 1541 comprises stage clip 1543 and hollow pins 1544, rotating shaft 1540 is provided with putting hole 1545, wherein stage clip 1,543 one ends are connected to the inwall of hollow pins 1544, the other end is contained in the putting hole 1545 of rotating shaft 1540, and hollow pins 1544 offsets with ratchet 152 under the effect of stage clip 1543.
For ease of installing and protection ratchet 153 and be positioned at the ratchet 152 of ratchet 153; swing component 151 comprises swing body 1511 and the over cap 1512 that can cooperate with swing body 1511; ratchet 153 is installed between swing body 1511 and the over cap 1512; be provided with shaft hole (figure is mark not) on swing body 1511 and the over cap 1512, ratchet 153 arranges with shaft hole is concentric.All be provided with pilot hole (figure is mark not) on swing body 1511 and the over cap 1512 relatively; be contained in the pilot hole described swing body 1511 and over cap 1512 is fixedly connected by screw; the shaft hole of described swing body 1511 and over cap 1512 is passed in rotating shaft 1540 so that swing body 1511 and over cap 1512 can rotate by phase countershaft 1540, and rotating shaft 1540 two end supports are on support housing 111 and can rotate relative to support housing 111.
For the intensity and the convenient location that increase swing body 1511, the side near over cap 1512 on the swing body 1511 is provided with round boss 1513, ratchet 153 and round boss 1513 concentric settings.Shaft hole is arranged on the center of the round boss 1513 of swing body 1511.In order to prevent that ratchet 152 and rigging screw from interfering mutually, pivot hole 1514 and pilot hole lay respectively at the circumferential both sides of round boss 1513.Be appreciated that; also round boss 1513 can be arranged on the over cap 1512; perhaps equal corresponding round boss 1513 that is provided with on over cap 1512 and the swing body 1511; ratchet 153 rotating being sleeved on the round boss 1513 are so that the structure of electric wrench of the present utility model 10 is compacter.
Please refer again to Fig. 3 and Fig. 4, support transmission component 17 and be used for transmission of power with changement 15 to opening gear 18, support transmission component 17 and be meshing with each other with opening gear 18.
In the utility model, support transmission component 17 comprise two respectively with the drive 170 of external toothing 1531 engagements of opening gear 18 and ratchet 153.In order to make transmission more steady, structure is compacter, and two drives 170 are symmetrically distributed centered by the axis of motor output shaft.Be appreciated that in order to make transmission of power more stable, also can between two above-mentioned symmetrically arranged drives 170, increase some drives.The width of jaw 1113 and opening 182 is more than or equal to diameter or the width of the tubulose that cooperates with described screw element or column object; certainly; support transmission component 17 and also can or have the tubular structure of external gear for chain; as long as can be with the transmission of power of ratchet 153 to opening gear 18; and guarantee that opening gear 18 supports transmission component 17 and has part to be meshed with opening gear 18 all the time in rotation process, thereby the transmission component that drive opening gear 18 rotates stably all should belong to protection domain of the present utility model.
Please also refer to Fig. 1, Fig. 2 and Fig. 8, opening gear 18 is meshed with supporting transmission component 17, and rotatable being installed in the installation portion 1111 of support housing 111.
The circumferential holding tank 1832 that is provided with on the interior composition surface 1830 of opening gear 18, circumferentially on the outer engagement surface 201 of annex 20 be provided with the accepting groove 203 corresponding with holding tank 1832, in the present embodiment, holding tank 1832 is C shape groove, and accepting groove 203 is a plurality of deep-slotted chip breakers that are positioned on the same circumference.Electric wrench 100 also comprises Flexible Connector 30, Flexible Connector 30 is roughly C shape, in the accepting groove 203 formed receiving spaces of its holding tank 1832 that is contained in opening gear 18 and annex 20 to be connected annex 20 in the opening gear 18 and to prevent that annex 20 from sliding vertically, contiguous holding tank 1,832 one end places also offer the limiting section 1833 that communicates with holding tank 1832 on the opening gear 18 interior composition surfaces 1830, in the present embodiment, limiting section 1833 is stopper slot, be appreciated that limiting section 1833 also can be spacing hole.The corresponding positive stop end 301 that is provided with on one end of Flexible Connector 30, in the limiting section 1833 that the positive stop end 204 of Flexible Connector 30 is installed in preventing that Flexible Connector 30 from deviating from holding tank, thereby prevent that Flexible Connector 30 and opening 182 from interfering.Annex 30 is open sleeve or bridgeware.
Please refer again to Fig. 8, Control Component 19 is used for the work of control electric wrench 10, and it comprises main switch 191, reset switch 192, switch drive part 193 and circuit board 194.For improving the comfortableness of operation, in the present embodiment, main switch 191, reset switch 192 are oppositely arranged on 112 both sides, grip part of housing 11, and switch drive part 193 is arranged between main switch 191 and the reset switch 192.Circuit board 194 is provided with the control circuit (figure is demonstration not) that rotates for control motor 130, switch drive part 193 the driving of main switch 191 or reset switch 192 with under be switched on or switched off control circuit, main switch 192 is used for starting or stoping of control electric wrench 10, reset switch 193 is used for resetting of control opening gear 18, and the opening 182 of namely controlling opening gear 18 aligns with the jaw 1113 of housing 11.
Please also refer to Fig. 9 and Figure 10, operation principle of the present utility model is: rotating with opening gear 18 first rotation directions is threaded together part direction.When wanting the threaded together part, the opening 182 that at first starts reset switch 192 adjustment opening gears 18 aligns with jaw 1113, the operator will pass jaw 1113 with treating the object that the threaded together part cooperates, from opening 182 and enter into opening gear 18, and be installed in the resettlement section 183 of opening gear 18, turn round 1542 elastic parts 1541 supported on first ratchet portion 1520 by rotate dialling this moment, start main switch 191 then, this moment, the output shaft of motor 130 drove eccentric shaft 150 eccentric rotary by reducing gear 14, the groove of offering on eccentric shaft 150 and the swing component 151 1511 periodically cooperates, thereby motor output shaft is converted into swing component 151 1540 periodic wobble around the shaft along the rotation of its axis, ratchet 152 is articulated on the swing component 151, ratchet 153 is provided with the hook tooth 1530 that cooperates with ratchet 152, the first ratchet portion 1520 winds under the drive of swing component 151 perpendicular to pivot first rotation direction on plane, described swing component 151 place or the rotation of second rotation direction, when described ratchet 152 rotated along first rotation direction, the first ratchet portion 1520 just inserted hook tooth 1530 and rotates in the same way to promote ratchet 153; When described ratchet 152 rotated along second rotation direction, the first ratchet portion 1520 streaked at ratchet 153, and ratchet 153 stops operating.Thereby make ratchet 153 periodically rotate along first rotation direction, rotate with first rotation direction thereby drive annex 20 by opening gear 18, thereby threaded together part.
In the time will unscrewing screw element, the opening 182 that at first starts reset switch 192 adjustment opening gears 18 aligns with jaw 1113, the operator will pass jaw 1113 with treating the object that the threaded together part cooperates, enter into opening gear 18 from opening 182, and be installed in the resettlement section 183 of opening gear 18, turn round 1542 elastic parts 1541 supported on second ratchet portion 1521 by rotate dialling this moment, start main switch 191 then, this moment, the output shaft of motor 130 drove eccentric shaft 150 eccentric rotary by reducing gear 14, the groove of offering on eccentric shaft 150 and the swing component 151 1511 periodically cooperates, thereby motor output shaft is converted into swing component 151 1540 periodic wobble around the shaft along the rotation of its axis, ratchet 152 is articulated on the swing component 151, ratchet 153 is provided with the hook tooth 1530 that cooperates with ratchet 152, the second ratchet portion 1521 winds under the drive of swing component 151 perpendicular to pivot first rotation direction on plane, described swing component 151 place or the rotation of second rotation direction, when described ratchet 152 rotated along second rotation direction, the second ratchet portion 1521 just inserted hook tooth 1530 and rotates in the same way to promote ratchet 153; When described ratchet 152 rotated along first rotation direction, the second ratchet portion 1521 streaked at ratchet 153, and ratchet 153 stops operating.Make ratchet 153 periodically rotate along second rotation direction, rotate with second rotation direction thereby drive annex 20 by opening gear 18, realize unscrewing screw element.
Please refer again to Fig. 9 and Figure 10, electric wrench 10 of the present utility model also has manual work pattern, and rotating with opening gear 18 first rotation directions is threaded together part direction.When wanting the threaded together part, the opening 182 that at first starts reset switch 192 adjustment opening gears 18 aligns with jaw 1113, the operator will pass jaw 1113 with treating the object that the threaded together part cooperates, from opening 182 and enter into opening gear 18, and be installed in the resettlement section 183 of opening gear 18, turn round 1542 elastic parts 1541 supported on first ratchet portion 1520 by rotate dialling this moment, when manually with the first rotation direction roll-shell 11, because the inside transmission mechanism of electric wrench 10 is not stuck mutually, therefore opening gear 18 can rotate with second rotation direction by relative housing 11, thereby driving ratchet 153 also rotates with second rotation direction, hook tooth 1530 was meshed to promote ratchet 152 with the first ratchet portion 1520 and rotated in the same way this moment, ratchet 152 drives swing component 151 and rotates along second rotation direction, swing component 151 also can be reverse drive eccentric shaft 150 rotate, when the eccentric part of eccentric shaft 150 to reverse drive dead point that groove 1511 matches the time, then eccentric shaft 150 is oppositely stuck mutually with swing component 151.Then can by opening gear 18 drive annexes 20 and with first rotation direction rotate when continuing manually with the first rotation direction roll-shell 11 this moment, thus locking screw spare gradually.In like manner, use that also can be manual electric wrench 10 of the present utility model unscrews screw element.
Please refer to Figure 11, the utility model is by offering at opening gear 18 and jaw 1113 corresponding opening 182, thereby screw element can be set in the opening gear 18 by installation portion 1111, tighten or unclamp action, thereby make electric wrench of the present utility model under the long situation of some bolts, or can both be convenient to use under the situation when twisting the nut of band pipeline etc.And with changement 15 as the commutation transmission mechanism, and provide power by motor 130, in use, only need screw element is put into opening gear 18, start electric wrench 10 of the present utility model then, under the situation that does not need roll-shell 11, can realize tightening or unscrewing of screw element, simple to operation, and working strength is little, and high efficiency also can conveniently be used in narrow operating space.
Though the utility model discloses as above with preferred embodiments, so it is not in order to limit the utility model.Have in the technical field under the utility model and know the knowledgeable usually, in not breaking away from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is as the criterion when looking claims person of defining.
Claims (10)
1. electric wrench, being used for driving screw element rotates, the annex that it comprises wrench body and is used for cooperating with screw element, described wrench body comprises housing, power part and changement, it is characterized in that: described wrench body also comprises support transmission component and opening gear, described housing comprises grip part and the installation portion that is extended along its length by grip part one end, described installation portion comprises two chelas that are oppositely arranged, be formed with jaw between two chelas, described power part, changement, support transmission component and opening gear connect successively and are contained in the described housing, its split shed gear is arranged in the described installation portion and can rotates in installation portion, described opening gear comprises and supports the outer toothed portion that transmission component is meshed, the opening corresponding with described jaw and the resettlement section that communicates with opening, the width of described jaw and described opening is more than or equal to diameter or the width of the tubulose that cooperates with described screw element or column object, described annex can be installed in to spline in the resettlement section of described opening gear, the resettlement section of described opening gear is along the circumferential holding tank that is provided with, the lateral wall of described annex is along circumferentially being provided with the accepting groove corresponding with holding tank, described electric wrench also comprises Flexible Connector, described Flexible Connector can be contained in the formed receiving space of accepting groove of the holding tank of opening gear and annex annex be connected in the opening gear and prevent that annex from sliding vertically, contiguous holding tank one end place also offers the limiting section that communicates with holding tank on the interior composition surface of opening gear, the corresponding positive stop end that is provided with on one end of Flexible Connector, the positive stop end of Flexible Connector are installed in the described limiting section to prevent that Flexible Connector from deviating from holding tank.
2. electric wrench according to claim 1, it is characterized in that: described resettlement section comprises the interior composition surface that is arranged on the opening gear inwall, described annex comprises the outer engagement surface that is arranged on its lateral wall, composition surface and described outer engagement surface all are roughly cylindric in described, be formed with a plurality of ribs of radially inwardly giving prominence in described on the composition surface, described rib also evenly is arranged on the interior composition surface of opening gear along the extension of opening Gear axis direction; Be formed with a plurality of recesses corresponding with rib on the described outer engagement surface, described recess extends on the interior composition surface of the annex of also evenly arranging along the annex axis direction.
3. electric wrench according to claim 1, it is characterized in that: described annex is open sleeve, and described holding tank is C shape groove, and described Flexible Connector is roughly C shape, and described accepting groove is a plurality of deep-slotted chip breakers that are positioned on the same circumference.
4. electric wrench according to claim 1, it is characterized in that: described housing is " one " font structure, it comprises the main casing that longitudinally extends and the support housing that is extended by main casing one end, one end of support housing is fixedly mounted in the main casing, the other end extends to the main casing outside along the shell length direction, installation portion is formed on described support housing away from an end of main casing, installation portion comprises two chelas that are oppositely arranged, two chelas are roughly curved, be formed with an accommodation hole and a jaw that communicates with accommodation hole between two chelas, accommodation hole is used for the construction opening gear.
5. electric wrench according to claim 1, it is characterized in that: described changement is ratchet mechanism or bevel gear mechanism, also be provided with reducing gear between described power part and the changement, the power that described power part provides passes to changement after slowing down by reducing gear.
6. electric wrench according to claim 5, it is characterized in that: described changement is ratchet mechanism, it comprises eccentric shaft, swing component, ratchet and ratchet, and described eccentric shaft is articulated on the described support housing, and eccentric shaft joins by the output shaft of reducing gear and power part; Described ratchet is articulated on the described swing component, the inner ring of described ratchet is provided with the hook tooth with click-fit, the outer ring of described ratchet also is provided with and supports the external toothing that transmission component matches, the pivot that ratchet can wind under the drive of swing component perpendicular to plane, described swing component place rotates along first direction or second direction, when described ratchet rotated along first direction, ratchet just inserted hook tooth and rotates in the same way to promote ratchet; When described ratchet rotated along second direction, ratchet streaked at ratchet, and ratchet stops operating.
7. electric wrench according to claim 6, it is characterized in that: described power part comprises motor and the power supply of powering to motor, described reducing gear is planetary gear reducing mechanism, it comprises planetary gear, ring gear, planet carrier and central gear, central gear is connected with the output shaft spline of motor, planetary gear is meshed with central gear and ring gear respectively, wherein ring gear is fixedly mounted on and supports on the housing, planetary gear rotation under the drive of central gear, and along the output shaft revolution of ring gear around motor; The corresponding planet pin that is set with protrusion on the planet carrier, planetary gear is sleeved on the planet pin and can rotates relative to planet pin, and described planet carrier is connected with the eccentric shaft spline.
8. electric wrench according to claim 7, it is characterized in that: described changement comprises commutator, described commutator includes rotating shaft, elastic parts reaches to dial and turns round, described swing component is articulated on the described support housing by rotating shaft, described elastic parts one end supports in rotating shaft, the other end and described ratchet offset, described ratchet comprises along the symmetrically arranged first ratchet portion of pivot and the second ratchet portion, described elastic parts rotates under rotating shaft drives, and offset with the first ratchet portion or the second ratchet portion, turning round spline for described group is connected in the described rotating shaft, so that described group turned round and can drive rotating shaft and rotate to change elastic parts support the position on ratchet, thereby realize commutation function; Described elastic parts comprises stage clip and hollow pins, and described rotating shaft is provided with putting hole, and wherein stage clip one end is connected to the inwall of hollow pins, and the other end is contained in the putting hole of rotating shaft, and described hollow pins offsets with ratchet under the effect of stage clip.
9. electric wrench according to claim 8, it is characterized in that: described swing component comprises swing body and the over cap that cooperates with the swing body, described ratchet is installed between swing body and the over cap, be provided with shaft hole on swing body and the over cap, described ratchet arranges with shaft hole is concentric, all be provided with pilot hole on described swing body and the over cap relatively, be contained in the pilot hole described swing body and over cap is fixedly connected by screw, the shaft hole of described swing body and over cap is passed in described rotating shaft so that swing body and over cap can rotate by the phase countershaft, and described rotating shaft two end supports is on support housing and can rotate relative to support housing; At least one parts is equipped with round boss in the side near another parts in swing body and the over cap; wherein shaft hole is arranged on the center of round boss; described pilot hole is arranged on the round boss; also be provided with on the round boss for pivoting the pivot hole of ratchet is installed, pivot hole and pilot hole lay respectively at the circumferential both sides of round boss.
10. electric wrench according to claim 1, it is characterized in that: described support transmission component comprises two drives, each drive both sides is meshing with each other with opening gear and changement respectively, and the opening size of opening gear is less than the maximum engagement distance between two drives and the opening gear; Described electric wrench also comprises Control Component, described Control Component comprises main switch, reset switch, switch drive part and circuit board, wherein main switch, reset switch are oppositely arranged on the both sides, grip part of housing, described switch drive part is arranged between main switch and the reset switch, and circuit board is provided with the control circuit that rotates for the control motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200923031U CN203141397U (en) | 2012-12-29 | 2013-02-28 | Electric wrench |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220745626.1 | 2012-12-29 | ||
| CN201210590179.1 | 2012-12-29 | ||
| CN201220745626 | 2012-12-29 | ||
| CN201210590179 | 2012-12-29 | ||
| CN2013200923031U CN203141397U (en) | 2012-12-29 | 2013-02-28 | Electric wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203141397U true CN203141397U (en) | 2013-08-21 |
Family
ID=48968952
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200923031U Withdrawn - After Issue CN203141397U (en) | 2012-12-29 | 2013-02-28 | Electric wrench |
| CN201310063713.8A Expired - Fee Related CN103909490B (en) | 2012-12-29 | 2013-02-28 | Electric wrench |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310063713.8A Expired - Fee Related CN103909490B (en) | 2012-12-29 | 2013-02-28 | Electric wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN203141397U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104209912A (en) * | 2013-05-30 | 2014-12-17 | 上海昆杰五金工具有限公司 | Electric auxiliary wrench |
| GB2528846A (en) * | 2014-07-30 | 2016-02-10 | Stud Mate Ltd | Mechanised spanner |
| CN109382792A (en) * | 2018-12-12 | 2019-02-26 | 福建易动力电子科技股份有限公司 | A kind of tool changing suspender opening angle |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107838666A (en) * | 2017-11-06 | 2018-03-27 | 佛山科学技术学院 | A kind of secondary gap adjusting nut handler of portable sliding screw |
| CN111283602B (en) * | 2020-04-30 | 2020-08-04 | 常州安费诺福洋通信设备有限公司 | Rotary wrench |
| CN112086844B (en) * | 2020-09-14 | 2022-01-21 | 国网山东省电力公司商河县供电公司 | Safe auxiliary dismounting tool for electric power threaded connector |
| CN114654408A (en) * | 2020-12-22 | 2022-06-24 | 中国铁路武汉局集团有限公司科学技术研究所 | Loose joint disassembling tool |
| CN117655966B (en) * | 2024-01-30 | 2024-04-05 | 四川懋润电力科技有限公司 | Socket wrench |
| CN118493302A (en) * | 2024-07-18 | 2024-08-16 | 烟台华顺机械工程设备有限公司 | Special open socket wrench for assembling lubrication station |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101038016A (en) * | 2006-03-17 | 2007-09-19 | 吴学新 | Power-driven multiplication transmission device |
| WO2008157346A1 (en) * | 2007-06-15 | 2008-12-24 | Black & Decker Inc. | Hybrid impact tool |
| JP4160628B1 (en) * | 2007-11-26 | 2008-10-01 | 昌幸 池田 | Transmission |
| US8381830B2 (en) * | 2009-05-05 | 2013-02-26 | Black & Decker Inc. | Power tool with integrated bit retention device |
| JP2011002063A (en) * | 2009-06-19 | 2011-01-06 | Sumitomo Heavy Ind Ltd | Power transmission device |
-
2013
- 2013-02-28 CN CN2013200923031U patent/CN203141397U/en not_active Withdrawn - After Issue
- 2013-02-28 CN CN201310063713.8A patent/CN103909490B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209912A (en) * | 2013-05-30 | 2014-12-17 | 上海昆杰五金工具有限公司 | Electric auxiliary wrench |
| GB2528846A (en) * | 2014-07-30 | 2016-02-10 | Stud Mate Ltd | Mechanised spanner |
| CN109382792A (en) * | 2018-12-12 | 2019-02-26 | 福建易动力电子科技股份有限公司 | A kind of tool changing suspender opening angle |
| CN109382792B (en) * | 2018-12-12 | 2024-02-02 | 福建易动力电子科技股份有限公司 | Tool for changing opening angle of lifting appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103909490B (en) | 2016-02-10 |
| CN103909490A (en) | 2014-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130821 Effective date of abandoning: 20160210 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |