CN201541076U - Electric operation module of an electric chassis vehicle - Google Patents
Electric operation module of an electric chassis vehicle Download PDFInfo
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- CN201541076U CN201541076U CN200920311800XU CN200920311800U CN201541076U CN 201541076 U CN201541076 U CN 201541076U CN 200920311800X U CN200920311800X U CN 200920311800XU CN 200920311800 U CN200920311800 U CN 200920311800U CN 201541076 U CN201541076 U CN 201541076U
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Abstract
The utility model belongs to an electric operation module of an electric chassis vehicle in a switch cabinet, comprising a chassis, a positioning mechanism, a fixation seat, an electric machine and a transmission mechanism. The chassis comprises a chassis frame and a transmission mechanism installation rack; the positioning mechanism comprises a lead screw; the fixation seat is arranged on the chassis frame and the electric machine is arranged on the fixation seat and the transmission mechanism is arranged on the fixation seat and the transmission mechanism installation rack. The transmission mechanism is a mechanical force overload protective gear transmission mechanism and comprises a preceding-stage transmission device, a constant pushing-force clutch and a back-stage transmission device and the constant pushing-force clutch is arranged between the preceding-stage transmission device and the back-stage transmission device; the power output axle of the electric machine is permanently connected with a power input piece of the preceding-stage transmission device; a power output piece of the back-stage transmission device is in rotation fit with the lead screw of the positioning mechanism. The electric operation module of an electric chassis vehicle has features of simple structure, relatively good safety, relatively convenient manual-electric switch of the electric chassis vehicle.
Description
Technical field
The utility model relates to a kind of electric chassis truck that is used for the vacuum circuit-breaker of intermediate switchgear cabinet.
Background technology
Along with the progress of power equipment manufacturing process, the power supply quality of power equipment is more and more stable, in order further to improve the automaticity of power industry, and the transformer station's unattended transformation that has been in full swing of power supply industry constituent parts.
In existing 10kV middle gas insulation switch cabinet, in order easily the middle vacuum circuit-breaker to be overhauled and to test, chassis car of general employing carries vacuum circuit-breaker, by moving ahead on the track of driving wheel in switch cubicle that is equipped with on this chassis car or retreating, and make the middle vacuum circuit-breaker or be in the maintenance position in the place ahead, the latter is in the service position at rear, thereby can realize pushing (vehicle frame moves to service position and locking from test position process) easily and withdraw from (vehicle frame is moved to test position and locking by the service position process) function.Above-mentioned chassis car is to realize the motion of chassis car in switch cubicle by the dependent manual operation handle.The structure of this chassis car is: driving wheel is equipped with in the both sides of carrier frame that are used for the vehicle frame of load-bearing breaker, T type screw mandrel and the nut of arranging before and after the level is equipped with in the centre, T type nut is fixed on the front portion on chassis, the front portion of T type screw mandrel is passed crossbeam, front panel, rear board and switch cubicle successively and is linked together, the top of T type screw mandrel is square toes, removably connect with handle, T type screw mandrel is rotatable but axial displacement can not be arranged like this, rotates T type screw mandrel by handle and T-nut is moved ahead in switch cubicle together with vehicle frame or retreats.This mode of operation for the chassis car is too single, and this mode of operation do not meet the automation requirement of power industry, and the staff need reach the spot and by handle the chassis car be operated, and is more frequent for the operation of the electric power system of 10kV.
Chinese patent literature CN2854876Y discloses the electric operating module of a kind of middle vacuum circuit-breaker chassis car, export the gear slider that is sleeved on original drive lead screw to after the power train of the power that is contained in the motor on the chassis through having the permanent thrust clutch of separable friction, be shaped on projection in the endoporus of cylindrical gear slide block, it is stuck in the axial notch of newly opening on the described screw mandrel surface, so just drive the screw mandrel rotation by gear drive, screw mandrel drives the motion of whole chassis car.This electric operating module realizes pushing and withdrawing from of chassis car under the control of far-end control circuit, and can judge whether the operation of chassis car is normal by the size of current of monitoring motor, rely on cut-out motor power loop to prevent that mechanical breakdown from causing the overload damage.But the structure of this electric operating module is comparatively complicated, and the power train parts between motor and the screw mandrel are more, and transmission cooperates complicated; And the volume of the motor that is adopted is bigger, and motor need vertically be installed on the chassis of chassis car, and the chassis car cooperates with circuit breaker when installing like this, must transform original frame structure of circuit breaker; Owing to newly driven axial notch on the surface of screw mandrel, changed original shape of screw mandrel, weakened the original intensity that has of screw mandrel; The overload protection of this electric operating module is also perfect inadequately.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple in structure, fail safe is better, the electric operating module of the electric chassis truck of the moving easy switching of torch.
The technical scheme that realizes the utility model purpose is: the electric operating module of a kind of electric chassis truck of the present utility model comprises motor and transmission mechanism.Also comprise holder, vehicle frame and detent mechanism.Vehicle frame comprises carrier frame.Detent mechanism comprises screw mandrel.
Holder is fixed on the carrier frame.Vehicle frame also comprises the transmission mechanism installing rack.Motor is fixed on the holder by its motor casing.Transmission mechanism is arranged on holder and the transmission mechanism installing rack.Transmission mechanism is the gear drive of mechanical force overload protection, comprises preceding gear stage, permanent thrust clutch and back gear stage, and permanent thrust clutch is arranged between preceding gear stage and the back gear stage.The power output shaft of motor is fixedlyed connected with the power input component of preceding gear stage.The power output of back gear stage and the wire rod thread of detent mechanism are rotatably assorted.
The basic configuration of holder is a cuboid, the circular mounting hole that connects about holder is provided with, and this installing hole is divided into 3 hole sections from left to right, is called the first hole section, the second hole section and the 3rd hole section from left to right successively.
Above-mentioned motor is the special-purpose charged magnetic brake holding of direct current motor, built-in decelerator.Motor is stretched in the first hole section of holder by the right-hand member of its motor casing, and is fixed on the holder by securing member.
The preceding gear stage of above-mentioned transmission mechanism comprises adapter sleeve, first flat key and second flat key.
Adapter sleeve is a column type hollow sleeve.Adapter sleeve rotates and is arranged in the second hole section of holder.Adapter sleeve is the power input component of the preceding gear stage of transmission mechanism.
The right-hand member of the power output shaft of motor stretches into the left part of adapter sleeve, and is connected with the adapter sleeve key by first flat key, thereby upwards spacing mutually in week.
Above-mentioned permanent thrust clutch comprises gear shaft, compression spring, apical axis, steel ball, rolling bearing and bevel gear.
Gear shaft is a hollow shaft, and the external diameter of its left shaft part is less than the external diameter of right axis section, gear shaft be provided with opening to the right centre bore is set vertically, the diameter of the part that is positioned at left shaft part of this centre bore is less than the diameter of the part that is positioned at right axis section.Gear shaft also is provided with 3 be centrosymmetric and steel ball holes that be positioned at the centre bore right-hand member that are disposed radially that communicate with centre bore, and folded angle is 120 degree between the axis of adjacent steel ball hole.
The inner ring tight fit of the right part of the left shaft part of gear shaft and rolling bearing, the outer ring of rolling bearing are tightly fixed on the 3rd hole section of holder.The right axis section of gear shaft stretches out outside the 3rd hole section of holder.
The basic configuration of apical axis is a bullet shape, comprises cylinder and the Rotary-table that is connected the cylinder right-hand member.
The compression spring stretches in the centre bore of connecting axle from right to left.Apical axis stretches in the centre bore of gear shaft from right to left, and is positioned at the right-hand of compression spring.
Bevel gear comprises neck and is connected the gear part of neck right-hand member that the external diameter of its neck has 3 semi-circular groove that are 120 degree distributions that the edge is circumferential less than the diameter of the 3rd hole section of holder on the wall of the medium pore of gear part.The bevel gear tight fit is enclosed within on the right axis section of gear shaft, and its semi-circular groove is relative with the axial location at the steel ball hole place of gear shaft, and bevel gear is matched with gear shaft.
Steel ball has 3, be arranged in the corresponding steel ball hole of gear shaft, the inboard of each steel ball contacts with apical axis, under the effect of the elastic force that compresses spring, apical axis makes the outside of each steel ball expose the steel ball hole of gear shaft, embed in the corresponding semi-circular groove along with the rotation of bevel gear, thereby make bevel gear and gear shaft upwards spacing mutually in certain range of resistance in week by steel ball, if the resistance between bevel gear and the gear shaft surpasses the elastic force that compresses spring by the component that steel ball acts on the apical axis, then in the steel ball hole of steel ball withdrawal gear shaft, the annexation between bevel gear and the gear shaft then becomes the relation that is rotationally connected at this moment.
The left part of the left shaft part of gear shaft stretches into from right to left in the adapter sleeve and by second flat key and is connected with the adapter sleeve key, thereby both are upwards spacing mutually in week.
Above-mentioned back gear stage comprises nut tap gear and top cover, also comprises the bevel gear that belongs to permanent thrust clutch simultaneously.
The nut tap gear comprises neck and connects the gear part of neck rear side, the wall of its medium pore be provided with screw mandrel on the left hand thread of threads engaged.The front end of neck is the circle ring column of apparent diameter less than main diameter, and the rear end of gear part is the counterbore of inside diameter greater than main diameter.
The top cover is the steel integral piece, the hollow circuit cylinder cover top cover that comprises the annular mounting panel that is positioned at rear side and be connected annular mounting panel internal circle edge by its hollow circuit cylinder cover from after pass the back frame plate of the transmission mechanism installing rack of vehicle frame forward, and the front end face of its annular mounting panel contacts with the rear end face of back frame plate, will push up cover by securing member and be fixed on the transmission mechanism installing rack of vehicle frame 1.
The nut tap gear is enclosed within the front end that pushes up the hollow circuit cylinder cover that overlaps by the rear end of its gear part, stretches into the nut gear hole of the fronk rack plate of transmission mechanism installing rack by the front end of its neck, thereby is rotationally connected with top cover and fronk rack plate.The nut tap gear is the power output of back gear stage of the transmission mechanism of electric operating module.
Screw mandrel rotates through nut tap gear and top cover successively.
The nut tap gear is rotationally connected with screw mandrel by the left hand thread engagement of its left hand thread and screw mandrel.The nut tap gear is by the gear part engagement of its gear part and bevel gear.
The utlity model has positive effect:
(1) electric chassis truck of the present utility model is housed when carrying out driven by power by the electric operating module; by rotation as the nut tap gear of the power output of transmission mechanism; drive the transmission mechanism installing rack and also together seesaw with respect to screw mandrel together with carrier frame even vehicle frame; when if the overload phenomenon occurring; the permanent thrust clutch of transmission mechanism can be thrown off automatically; the gear shaft of transmission mechanism is dallied with respect to bevel gear; thereby effectively protected motor, made that electric chassis truck fail safe of the present utility model is better.
(2) the electronic and manual operation that electric chassis truck of the present utility model is housed is switched very conveniently, and the structure of corresponding parts is also fairly simple.Carry out electronic during to manual conversion, just make electric chassis truck be in after only needing be fixed on joystick on the front end of screw mandrel and can carry out manually operated state, the control motor gets the button of electric startup and does not press, thereby make the electromagnetism brake holding on the motor be in the state of brake holding motor, the artificial joystick that rotates, screw mandrel is along with joystick together rotates with respect to the nut tap gear, thereby makes the nut tap gear drive the transmission mechanism installing rack in rotation and also together seesaw with respect to screw mandrel together with carrier frame even vehicle frame.When carrying out manually extremely electronic conversion, only need joystick is pulled down.
(3) motor volume of electric chassis truck of the present utility model is less, and adopts horizontally-mounted method to be installed in the carrier frame, need not can cooperate installation with it to original frame structure transformation of vacuum circuit-breaker, and versatility is stronger.
Description of drawings
Fig. 1 is a kind of plan structure schematic diagram that electric chassis truck of the present utility model is housed.
Fig. 2 is the structural representation of the carrier frame among Fig. 1.
Fig. 3 is the structural representation from frame plate after the F of Fig. 1 is when observing.
Fig. 4 is the structural representation from F fronk rack plate when observing of Fig. 1.
Fig. 5 is the A-A face cutaway view of Fig. 1.
Fig. 6 is the structural representation from F holder when observing of Fig. 1.
Fig. 7 is the schematic perspective view of holder among Fig. 6.
Fig. 8 is the structural representation of adapter sleeve among Fig. 7.
Fig. 9 looks schematic diagram for the left side of adapter sleeve among Fig. 8.
Figure 10 is the structural representation of connecting axle during from the beneath of Fig. 5.
Figure 11 is the C-C face cutaway view of Figure 10.
Figure 12 is the structural representation of apical axis among Fig. 5.
Figure 13 is the structural representation of bevel gear when observing from the right side of Fig. 5.
Figure 14 is the D-D face cutaway view of Figure 13.
Figure 15 is the structural representation from F nut tap gear when observing of Fig. 1.
Figure 16 is the E-E face cutaway view of Figure 15.
Figure 17 is the schematic perspective view of nut tap gear shown in Figure 15.
Figure 18 is the structural representation from F top cover when observing of Fig. 1.
Figure 19 is the B-B face cutaway view of Figure 18.
Schematic diagram when Figure 20 is in " work " position for electric chassis truck shown in Figure 1.
Mark in the above-mentioned accompanying drawing is as follows:
Carrier frame 10, base plate 10-1, front side board 10-2, back side panel 10-3, left plate 10-4, right plate 10-5,
Transmission mechanism installing rack 12, back frame plate 12-1, fronk rack plate 12-2, support set 12-3, top cover unthreaded hole 12-4, top cover screw 12-5, connecting hole 12-6, nut gear hole 12-7, connecting hole 12-8,
Detent mechanism 2,
Screw component 26, screw mandrel 26-1, joystick 28,
Gear shaft 33-1, compression spring 33-2, apical axis 33-3, steel ball 33-4, centre bore 33-5, steel ball hole 33-6,
Rolling bearing 34, bevel gear 35, neck 35-1, gear part 35-2, semi-circular groove 35-3, the first flat key 36-1, the second flat key 36-2, nut tap gear 37, neck 37-1, gear part 37-2, top cover 38, annular mounting panel 38-1, hollow circuit cylinder cover 38-2, fixing hole 38-3.
Embodiment
(embodiment 1) sees Fig. 1, and the electric operating module of present embodiment comprises vehicle frame 1, detent mechanism 2, motor 31 and transmission mechanism.Detent mechanism 2 comprises screw component 26; Screw component 26 comprises screw mandrel 26-1; Vehicle frame 1 comprises carrier frame 10; Motor 31 and transmission mechanism are arranged on the carrier frame 10 of vehicle frame 1, and the power output nut tap gear 37 of transmission mechanism cooperates with the screw mandrel 26-1 threads turn of detent mechanism 2.Transmission mechanism is the gear drive of mechanical force overload protection.
See Fig. 1, vehicle frame 1 comprises carrier frame 10 and transmission mechanism installing rack 12.
See Fig. 2, carrier frame 10 is the steel integral pieces that formed by punching press and bending by steel plate.Carrier frame 10 comprises base plate 10-1, front side board 10-2, back side panel 10-3, left plate 10-4 and right plate 10-5.Base plate 10-1 is provided with the installing hole and the screw mounting hole of each parts.
Front side board 10-2 vertical is provided with, and is connected on the forward edge of base plate 10-1 according to from the top down mode.
Back side panel 10-3 vertical is provided with, and is connected on the posterior edges of base plate 10-1 according to from the top down mode.
Left plate 10-4 vertical is provided with, and is connected on the left side edge of base plate 10-1 according to from the top down mode.
Right plate 10-5 vertical is provided with, and is connected on the right side edge of base plate 10-1 according to from the top down mode.
See Fig. 1, transmission mechanism installing rack 12 comprises back frame plate 12-1, fronk rack plate 12-2 and 2 support set 12-3.
See Fig. 1 and Fig. 3, back frame plate 12-1 vertical is weldingly fixed on the base plate 10-1 by its lower end to setting, and is positioned at the front middle part of base plate 10-1.Screw 12-5 is overlapped on top cover unthreaded hole 12-4 and 3 tops that are centrosymmetric of having a circle in the middle of the plate body of back frame plate 12-1.The two ends, the left and right sides, top of back frame plate 12-1 respectively have a connecting hole 12-6.
See Fig. 1 and Fig. 4, have the nut gear hole 12-7 of a circle in the middle of the plate body of fronk rack plate 12-2, respectively have a connecting hole 12-8 on 4 angles of plate body.
See Fig. 1 and Fig. 1, after passing two connecting holes, the corresponding connecting hole 12-8 on the fronk rack plate 12-2, a corresponding support set 12-3 that are positioned at the top and the corresponding connecting hole 12-6 on the frame plate 12-1 of back on the front side board 10-2 respectively successively by 2 stay bolts, have a corresponding locking nut to screw afterbody again at bolt, thus will back frame plate 12-1, fronk rack plate 12-2 and 2 support set 12-3 connect into by fronk rack plate 12-2 and be fixed on transmission mechanism installing rack 12 on the front side board 10-2 of carrier frame 10; After passing two connecting holes that are positioned at the below and the corresponding connecting hole 12-8 on the fronk rack plate 12-2 on the front side board 10-2 successively respectively by 2 lag bolts, there is a corresponding locking nut to screw afterbody again, thereby fronk rack plate 12-2 is fixed on the front side board 10-2 at bolt.
See Fig. 1 and Fig. 5, the electric operating module of present embodiment also comprises holder 30.The transmission mechanism of electric operating module is the gear drive of mechanical force overload protection, comprises preceding gear stage, back gear stage and permanent thrust clutch, and permanent thrust clutch is arranged between preceding gear stage and the back gear stage.
See Fig. 1, Fig. 6 and Fig. 7, the basic configuration of holder 30 is a cuboid, the circular mounting hole that connects about holder 30 is provided with, this installing hole is divided into 3 hole sections from left to right, is called the first hole section 30-1, the second hole section 30-2 and the 3rd hole section 30-3 from left to right successively.The first hole section 30-1 diameter maximum length minimum, the second hole section is the minimum length maximum so far, in the middle of the 3rd hole section diameter and length all are positioned at.Holder 30 also has the direction fabrication hole before and after connecting in the middle part of left and right directions, this fabrication hole is staggered at middle part and installing hole, thereby be divided into front hole section, staggered hole section and 3 hole sections of metapore section according to order from front to back, front hole section is identical with the peripheral dimension of metapore section, and on size up and down greater than staggered hole section.On formed first member plate between the end face in left side, have 4 symmetrically arranged motor fixed bolt hole 30-4 that 4 axis with installing hole are center line at left side wall to the first hole section 30-1 of the front hole section of holder 30 and metapore section.Respectively be provided with on 4 angles of the bottom of holder 30 1 vertical to screwed hole 30-5.4 screws screw on a corresponding screwed hole 30-5 on the bottom of holder 30 after passing a corresponding connecting hole on the base plate 10-1 respectively successively from bottom to top, thereby holder 30 is fixed on the base plate 10-1.
See Fig. 1, motor 31 is the special-purpose charged magnetic brake holding of direct current motor, built-in decelerator.Motor 31 is in when energising, the electromagnetism brake holding adhesive of also switching on, and at this moment it is not braked motor, the exportable power of motor; Stop after motor 31 power supplies, the electromagnetism brake holding is also cut off the power supply, and checks motor 31 under the effect of spring.Have 4 screws on the right side end plate of the motor casing of motor 31 around motor shaft.The power output shaft 31-1 of motor 31 is provided with keyway.The right-hand member of the motor casing of motor 31 stretches in the first hole section 30-1 of holder 30, screw on the end plate of the right side of motor casing after passing a corresponding motor fixed bolt hole 30-4 by 4 bolts from the right side of the first member plate of holder 30, and motor 31 is fixed on the holder 30.
See Fig. 1 and Fig. 5, the preceding gear stage of transmission mechanism comprises adapter sleeve 32, the first flat key 36-1 and the second flat key 36-2.
See Fig. 8 and Fig. 9, adapter sleeve 32 is a column type hollow sleeve.Its inwall is provided with a keyway about running through.The diameter of the adapter sleeve installing hole in the external diameter of adapter sleeve 32 and the holder 30 matches, and internal diameter matches with the diameter of the power output shaft 31-1 of motor 31.See Fig. 5, adapter sleeve 32 rotates and is arranged in the second hole section 30-2 of holder 30.
See Fig. 5, the power output shaft 31-1 of motor 31 cooperates the left part that is installed in the adapter sleeve 32, is positioned at adapter sleeve 32.The first flat key 36-1 is arranged between the keyway of the keyway of power output shaft 31-1 and adapter sleeve 32, makes power output shaft 31-1 and adapter sleeve 32 upwards spacing mutually in week.
Still see Fig. 5, permanent thrust clutch comprises gear shaft 33-1, compression spring 33-2, apical axis 33-3, steel ball 33-4, rolling bearing 34 and bevel gear 35.
See Fig. 5, Figure 10 and Figure 11, gear shaft 33-1 is a hollow shaft, and the external diameter of its left shaft part is less than the external diameter of right axis section, and the external diameter of left shaft part matches with the internal diameter of adapter sleeve 32.Gear shaft 33-1 be provided with opening to the right centre bore 33-5 is set vertically, the diameter of the part that is positioned at left shaft part of this centre bore 33-5 is less than the diameter of the part that is positioned at right axis section.Gear shaft 33-1 also is provided with 3 be centrosymmetric and steel ball hole 33-6 that be positioned at the centre bore right-hand member that are disposed radially that communicate with centre bore 33-5, and folded angle is 120 degree between the axis of adjacent steel ball hole 33-6.Gear shaft 33-1 also is provided with keyway on the outer surface of its left shaft part.
See Fig. 5, the inner ring tight fit of the right part of the left shaft part of gear shaft 33-1 and rolling bearing 34, the outer ring of rolling bearing 34 is tightly fixed on the 3rd hole section 30-3 of holder 30.The left part of the left shaft part of gear shaft 33-1 cooperates the right part that is installed in the adapter sleeve 32, is positioned at adapter sleeve 32, the second flat key 36-2 is arranged between the keyway of the keyway of gear shaft 33-1 and adapter sleeve 32, makes gear shaft 33-1 and adapter sleeve 32 upwards spacing mutually in week.The right axis section of gear shaft 33-1 stretches out outside the 3rd hole section 30-3 of holder 30.
See Fig. 5 and Figure 12, the basic configuration of apical axis 33-3 is a bullet shape, comprises cylinder and the Rotary-table that is connected the cylinder right-hand member.
See Fig. 5, the external diameter of compression spring 33-2 is corresponding with the diameter of the part that is positioned at left shaft part of the centre bore 33-5 of gear shaft 33-1, its length is longer than the length of the part that is positioned at left shaft part of centre bore 33-5, and compression spring 33-2 stretches among the centre bore 33-5 of connecting axle 33-1 from right to left.The cylindrical external diameter of apical axis 33-3 is corresponding with the diameter of the part that is positioned at right axis section of the centre bore 33-5 of gear shaft 33-1, and apical axis 33-3 stretches among the centre bore 33-5 of gear shaft 33-1 from right to left, and is positioned at the right-hand of compression spring 33-2.
See Figure 13 and Figure 14, bevel gear 35 comprises neck 35-1 and is connected the gear part 35-2 of neck 35-1 right-hand member, the external diameter of its neck 35-1 has 3 semi-circular groove 35-3 that are 120 degree distributions that the edge is circumferential less than the diameter of the 3rd hole section 30-3 of holder 30 on the wall of the medium pore of gear part 35-2.See Fig. 1 and Fig. 5, bevel gear 35 tight fits are enclosed within on the right axis section of gear shaft 33-1, and its semi-circular groove 35-3 is relative with the axial location at the steel ball hole 33-6 place of gear shaft 33-1, and bevel gear 35 is matched with gear shaft 33-1.
See Fig. 5, steel ball 33-4 has 3, be arranged in the corresponding steel ball hole 33-6 of gear shaft 33-1, the inboard of each steel ball contacts with apical axis 33-3, under the effect of the elastic force that compresses spring 33-2, apical axis 33-3 makes the outside of each steel ball 33-4 expose the steel ball hole 33-6 of gear shaft 33-1, embed among the corresponding semi-circular groove 35-3 along with the rotation of bevel gear 35, thereby make that bevel gear 35 and gear shaft 33-1 are upwards spacing mutually in certain range of resistance in week by steel ball 33-4, if the resistance between bevel gear 35 and the gear shaft 33-1 surpasses the elastic force that compresses spring 33-2 by the component that steel ball 33-4 acts on the apical axis 33-3, then in the steel ball hole 33-6 of steel ball 33-4 withdrawal gear shaft 33-1, the annexation between bevel gear 35 and the gear shaft 33-1 then becomes the relation that is rotationally connected at this moment.
See Fig. 1 and Fig. 5, back gear stage comprises nut tap gear 37 and top cover 38, also comprises the bevel gear 35 that belongs to permanent thrust clutch simultaneously.
See Figure 15, Figure 16 and Figure 17, nut tap gear 37 comprises neck 37-1 and connects the gear part 37-2 of neck 37-1 rear side, the wall of its medium pore be provided with screw mandrel 26-1 on the left hand thread of threads engaged.The front end of neck 37-1 is the circle ring column of apparent diameter less than main diameter, and the rear end of gear part 37-2 is the counterbore of inside diameter greater than main diameter.
See Fig. 1, Figure 18 and Figure 20, top cover 38 is the steel integral piece, comprise annular mounting panel 38-1 that is positioned at rear side and the hollow circuit cylinder cover 38-2 that is connected annular mounting panel 38-1 internal circle edge, annular mounting panel 38-1 upper edge circumferentially has 3 fixing hole 38-3 that are centrosymmetric.The external diameter of hollow circuit cylinder cover 38-2 matches with the top cover unthreaded hole 12-4 of the back frame plate 12-1 of transmission mechanism installing rack 12.Top cover 38 by its hollow circuit cylinder cover 38-2 from after pass the top cover unthreaded hole 12-4 of back frame plate 12-1 forward, and the front end face of its annular mounting panel 38-1 contacts with the rear end face of back frame plate 12-1, screw on the screwed hole 12-5 of back frame plate 12-1 pass the corresponding fixing hole 12-8 of annular mounting panel 38-1 respectively by 3 bolts after, overlap 38-3 and be fixed on the transmission mechanism installing rack 12 thereby will push up.
See Fig. 1, nut tap gear 37 is enclosed within the front end of the hollow circuit cylinder cover 38-2 of top cover 38 by the rear end of its gear part 37-2, stretch into the nut gear hole 12-7 of the fronk rack plate 12-2 of transmission mechanism installing rack 12 by the front end of its neck 37-1, thereby be rotationally connected with top cover 38 and fronk rack plate 12-2.
Still see Fig. 1, the rear end of screw mandrel 26-1 rotates through front side board 10-2, nut tap gear 37 and the top cover 38 of carrier frame 10 successively backward, if vehicle frame 1 is in test (maintenance) position, the back side panel 10-3 of carrier frame 10 is also passed in the rear end of screw mandrel 26-1.
When the electric operating module of present embodiment is used, behind the starter motor 31, electromagnetism brake holding energising adhesive, the rotation along with the power output shaft 31-1 of motor 31 then drives adapter sleeve 32 and gear shaft 33-1 successively and rotates.Rotation along with gear shaft 33-1, under the effect of the 33-2 that compresses spring, apical axis 33-3 slides into the right-hand member of the gear part 35-2 of bevel gear 35 to the right in the medium pore 33-5 of gear shaft 33-1, promoting 3 steel ball 33-4 is simultaneously embedded among the corresponding semi-circular groove 35-5 of bevel gear 35 in along with the rotation of gear shaft 33-1 at it by its half spheroid that is in the outside, thereby make permanent thrust clutch be in engagement, then the power output shaft 31-1 of motor 31 drives adapter sleeve 32, gear shaft 33-1, bevel gear 35 and 37 rotations of nut tap gear successively.Screw mandrel 26-1 is not rotatable under the effect of positioning component, along with the rotation of nut tap gear 37 around screw mandrel 26-1, move to " work " position and drive top cover 38, transmission mechanism installing rack 12 and carrier frame 10 beginnings successively, also promptly make vehicle frame 1 move backward.
If electric chassis truck is implemented " withdrawing from " electric operating, only need press the control button on the control circuit, make that the rightabout when motor 31 is operated according to " pushing " rotates.
When electric chassis truck is implemented electric operating; when if the load of chassis car in motion process surpasses proper working load; the steel ball 33-4 of permanent thrust clutch overcomes the permanent thrust of compression spring 33-2 to apical axis 33-3; and make apical axis 33-3 to left movement; thereby make a steel ball 33-4 withdrawal part to the steel ball hole 33-6 of gear shaft 33-1; and make gear shaft 33-1 and bevel gear 35 skid; 31 in motor drives adapter sleeve 32 and gear shaft 33-1 idle running; thereby effectively protected the motor 31 can be because of overload does not burn out, permanent thrust clutch have played the effect of mechanical force overload protection.
When electric chassis truck is implemented manual operation, stop power supply earlier to motor 31, then the electromagnetism brake holding of motor 31 is also cut off the power supply and check motor 31 under the effect of spring, the power output shaft 31-1 of motor 31, adapter sleeve 32 and gear shaft 33-1 can't rotate, the permanent thrust clutch of this moment is in the state that closes thereby bevel gear 35 and nut tap gear 37 and can not rotates under proper working load, make joystick 28 be enclosed within on the front end square toes of screw mandrel 26-1, and it is fastening with screw, be fixed on the restriction that screw mandrel 26-1 breaks away from positioning component this moment, thereby make screw mandrel 26-1 be in rotary state, the nut tap gear 37 that is arranged on the periphery of threaded rod of screw mandrel 26-1 is equivalent to a hold-down nut.Therefore manually during joystick 28, screw mandrel 26-1 rotates with joystick 28, vehicle frame 1 motion and " pushing " or travel forward and " withdrawing from " backward under the effect of nut tap gear 37.
Claims (3)
1. the electric operating module of an electric chassis truck comprises motor (31) and transmission mechanism; Also comprise vehicle frame (1) and detent mechanism (2); Vehicle frame (1) comprises carrier frame (10); Detent mechanism (2) comprises screw mandrel (26-1); It is characterized in that:
Also comprise holder (30); Holder (30) is fixed on the carrier frame (10); Vehicle frame (1) also comprises transmission mechanism installing rack (12); Motor (31) is fixed on the holder (30) by its motor casing; Transmission mechanism is arranged on holder (30) and the transmission mechanism installing rack (12); Transmission mechanism is the gear drive of mechanical force overload protection, comprises preceding gear stage, permanent thrust clutch and back gear stage, and permanent thrust clutch is arranged between preceding gear stage and the back gear stage; The power output shaft (31-1) of motor (31) is fixedlyed connected with the power input component of preceding gear stage; The power output of back gear stage cooperates with screw mandrel (26-1) threads turn of detent mechanism (2).
2. according to the electric operating module of the described electric chassis truck of claim 1, it is characterized in that: the basic configuration of holder (30) is a cuboid, the circular mounting hole that connects about holder (30) is provided with, this installing hole is divided into 3 hole sections from left to right, is called the first hole section (30-1), the second hole section (30-2) and the 3rd hole section (30-3) from left to right successively;
Described motor (31) is the special-purpose charged magnetic brake holding of direct current motor, built-in decelerator; Motor (31) is stretched in the first hole section (30-1) of holder (30) by the right-hand member of its motor casing, and is fixed on the holder (30) by securing member;
The preceding gear stage of described transmission mechanism comprises adapter sleeve (32), first flat key (36-1) and second flat key (36-2);
Adapter sleeve (32) is a column type hollow sleeve; Adapter sleeve (32) rotates and is arranged in the second hole section (30-2) of holder (30); Adapter sleeve (32) is the power input component of the preceding gear stage of transmission mechanism;
The right-hand member of the power output shaft (31-1) of motor (31) stretches into the left part of adapter sleeve (32), and is connected with adapter sleeve (32) key by first flat key (36-1), thereby upwards spacing mutually in week;
Described permanent thrust clutch comprises gear shaft (33-1), compression spring (33-2), apical axis (33-3), steel ball (33-4), rolling bearing (34) and bevel gear (35);
Gear shaft (33-1) is a hollow shaft, the external diameter of its left shaft part is less than the external diameter of right axis section, gear shaft (33-1) be provided with opening to the right centre bore (33-5) is set vertically, the diameter of the part that is positioned at left shaft part of this centre bore (33-5) is less than the diameter of the part that is positioned at right axis section; Gear shaft (33-1) also is provided with 3 be centrosymmetric and steel ball holes that be positioned at the centre bore right-hand member (33-6) that are disposed radially that communicate with centre bore (33-5), and folded angle is 120 degree between the axis of adjacent steel ball hole (33-6);
The inner ring tight fit of the right part of the left shaft part of gear shaft (33-1) and rolling bearing (34), the outer ring of rolling bearing (34) are tightly fixed on the 3rd hole section (30-3) of holder (30); The right axis section of gear shaft (33-1) stretches out outside the 3rd hole section (30-3) of holder (30);
The basic configuration of apical axis (33-3) is a bullet shape, comprises cylinder and the Rotary-table that is connected the cylinder right-hand member;
Compression spring (33-2) stretches in the centre bore (33-5) of connecting axle (33-1) from right to left; Apical axis (33-3) stretches in the centre bore (33-5) of gear shaft (33-1) from right to left, and is positioned at the right-hand of compression spring (33-2);
Bevel gear (35) comprises neck (35-1) and is connected the gear part (35-2) of neck (35-1) right-hand member, the external diameter of its neck (35-1) has 3 semi-circular groove (35-3) that are 120 degree distributions that the edge is circumferential less than the diameter of the 3rd hole section (30-3) of holder (30) on the wall of the medium pore of gear part (35-2); Bevel gear (35) tight fit is enclosed within on the right axis section of gear shaft (33-1), and its semi-circular groove (35-3) is relative with the axial location at steel ball hole (33-6) place of gear shaft (33-1), and bevel gear (35) is matched with gear shaft (33-1);
Steel ball (33-4) has 3, be arranged in the corresponding steel ball hole (33-6) of gear shaft (33-1), the inboard of each steel ball contacts with apical axis (33-3), under the effect of the elastic force that compresses spring (33-2), apical axis (33-3) makes the outside of each steel ball (33-4) expose the steel ball hole (33-6) of gear shaft (33-1), embed in the corresponding semi-circular groove (35-3) along with the rotation of bevel gear (35), thereby make that bevel gear (35) and gear shaft (33-1) are upwards spacing mutually in certain range of resistance in week by steel ball (33-4), if the resistance between bevel gear (35) and the gear shaft (33-1) surpasses the elastic force that compresses spring (33-2) by the component that steel ball (33-4) acts on the apical axis (33-3), then in the steel ball hole (33-6) of steel ball (33-4) withdrawal gear shaft (33-1), the annexation between bevel gear (35) and the gear shaft (33-1) then becomes the relation that is rotationally connected at this moment;
The left part of the left shaft part of gear shaft (33-1) stretches into from right to left in the adapter sleeve (32) and by second flat key (36-2) and is connected with adapter sleeve (32) key, thereby both are upwards spacing mutually in week.
3. according to the electric operating module (3) of claim 1 or 2 described electric chassis trucks, it is characterized in that: described transmission mechanism installing rack (12) comprises back frame plate (12-1) and fronk rack plate (12-2);
Vertical was to being arranged on the carrier frame (10) before and after fronk rack plate (12-2) and back frame plate (12-1) divided, and was positioned at the upper front part of the base plate (10-1) of carrier frame (10);
Described back gear stage comprises nut tap gear (37) and top cover (38), also comprises the bevel gear (35) that belongs to permanent thrust clutch simultaneously;
Nut tap gear (37) comprises neck (37-1) and connects the gear part (37-2) of neck (37-1) rear side, the wall of its medium pore be provided with screw mandrel (26-1) on the left hand thread of threads engaged; The front end of neck (37-1) is the circle ring column of apparent diameter less than main diameter, and the rear end of gear part (37-2) is the counterbore of inside diameter greater than main diameter;
Top cover (38) is the steel integral piece, hollow circuit cylinder cover (38-2) the top cover (38) that comprises the annular mounting panel (38-1) that is positioned at rear side and be connected annular mounting panel (38-1) internal circle edge by its hollow circuit cylinder cover (38-2) from after pass the back frame plate (12-1) of the transmission mechanism installing rack (12) of vehicle frame (1) forward, and the front end face of its annular mounting panel (38-1) contacts with the rear end face of back frame plate (12-1), will push up on the transmission mechanism installing rack (12) that cover (38-3) is fixed on vehicle frame 1 by securing member;
Nut tap gear (37) is enclosed within the front end of the hollow circuit cylinder cover (38-2) of top cover (38) by the rear end of its gear part (37-2), stretch into the nut gear hole (12-7) of the fronk rack plate (12-2) of transmission mechanism installing rack (12) by the front end of its neck (37-1), thereby be rotationally connected with top cover (38) and fronk rack plate (12-2); Nut tap gear (37) is the power output of back gear stage of the transmission mechanism of electric operating module (3);
Screw mandrel (26-1) rotates through nut tap gear (37) and top cover (38) successively;
Nut tap gear (37) is rotationally connected with screw mandrel (26-1) by the left hand thread engagement of its left hand thread and screw mandrel (26-1); Nut tap gear (37) is by gear part (35-2) engagement of its gear part (37-2) with bevel gear (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920311800XU CN201541076U (en) | 2009-09-29 | 2009-09-29 | Electric operation module of an electric chassis vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920311800XU CN201541076U (en) | 2009-09-29 | 2009-09-29 | Electric operation module of an electric chassis vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN201541076U true CN201541076U (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920311800XU Expired - Fee Related CN201541076U (en) | 2009-09-29 | 2009-09-29 | Electric operation module of an electric chassis vehicle |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822742A (en) * | 2016-04-28 | 2016-08-03 | 中国科学院长春光学精密机械与物理研究所 | Limiting and automatic-unlocking mechanism for rotation shaft system |
| CN104577840B (en) * | 2013-10-10 | 2017-01-04 | 施耐德电器工业公司 | One is shaken into shake-out machine structure |
-
2009
- 2009-09-29 CN CN200920311800XU patent/CN201541076U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577840B (en) * | 2013-10-10 | 2017-01-04 | 施耐德电器工业公司 | One is shaken into shake-out machine structure |
| CN105822742A (en) * | 2016-04-28 | 2016-08-03 | 中国科学院长春光学精密机械与物理研究所 | Limiting and automatic-unlocking mechanism for rotation shaft system |
| CN105822742B (en) * | 2016-04-28 | 2018-01-05 | 中国科学院长春光学精密机械与物理研究所 | The spacing and automatic unlocking mechanism of rotary axis |
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Granted publication date: 20100804 Termination date: 20100929 |