CN201148158Y - Supporting device - Google Patents
Supporting device Download PDFInfo
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- CN201148158Y CN201148158Y CNU2007200091114U CN200720009111U CN201148158Y CN 201148158 Y CN201148158 Y CN 201148158Y CN U2007200091114 U CNU2007200091114 U CN U2007200091114U CN 200720009111 U CN200720009111 U CN 200720009111U CN 201148158 Y CN201148158 Y CN 201148158Y
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- gear
- input shaft
- bearing
- satellite
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Abstract
The utility model discloses a supporting device, comprising an upper tube, an inner tube, a transmission system and a foot part. The transmission system is installed on the upper part of the upper tube. The inner tube is arranged inside the upper tube. The upper part of the inner tube is connected with the transmission system, and the lower part is connected with the foot part. The transmission system comprises at least one set of fewer teeth difference transmission system, a cone gear pair and a screw. The fewer teeth difference transmission system is connected with the cone gear. The cone gear is connected with the screw. The utility model applies the fewer teeth difference transmission system in a supporting device, and so a large transmission ratio of the transmission system of the supporting device can be easily achieved, and the transmission system is easy to be matched with a high speed motor or pneumatic motor to accomplish the automatic operation. The size of the transmission system can be designed and fabricated to be smaller, and then the structure can be compacted, the materials and the fabrication cost can be saved.
Description
Technical field
The utility model relates to a kind of bracing or strutting arrangement that trailer, special-use vehicle and various needs support occasion that is applied to.This bracing or strutting arrangement is cooperatively interacted by inner and outer pipes and forms, and pipe can stretch out and regains in the certain-length scope in realizing by driving system.
Background technology
Bracing or strutting arrangement mainly is on trailer, the front-end configuration one secondary bracing or strutting arrangement (two supporting legs) of trailer.At present, the bracing or strutting arrangement that is used for trailer has two kinds of forms usually:
1) two supporting legs are worked together by intermediate connecting rod, and a supporting leg is a master leg, and another is passive supporting leg, master leg configuration input mechanism and driving system;
2) two supporting leg separate configurations input mechanisms and driving system.
After truck and trailer connection, pipe is retracted to assigned position in the bracing or strutting arrangement; When loading and unloading goods, pipe is elongated to kiss the earth and supports trailer in the bracing or strutting arrangement, and this moment, truck can break away from trailer; When trailer installs goods, manage again elongation as required in the bracing or strutting arrangement, raise trailer truck and trailer are connect again.
The driving system that is used for the bracing or strutting arrangement of trailer generally has high speed gear and low gear.When trailer carried and stops preparation disengaging truck, the operator used high speed gear that the interior pipe of bracing or strutting arrangement is extended and kiss the earth from punctured position; In case the bracing or strutting arrangement kiss the earth uses the interior pipe of the further elongate support device of low gear to raise trailer.Equally,, use low gear that the interior pipe of bracing or strutting arrangement is extended as required and raise trailer, after truck and trailer connection, re-use high speed gear and rapidly pipe in the bracing or strutting arrangement is retracted to assigned position when trailer installs goods.
The existing bracing or strutting arrangement that is used for trailer adopt many to the involute spur gear external toothing, conical gear is secondary and a secondary nut-screw mechanism forms driving system, realizes high speed gear and low gear by the Meshing Pair that changes involute spur gear.Because the transmitting ratio of involute spur gear external toothing transmission is little, existing bracing or strutting arrangement is subjected to the transmitting ratio of structural limitations low gear less, needs bigger input torque under heavy lift during the low gear operation.The structure influence that required by the transmitting ratio of low gear, the transmitting ratio of high speed gear input and output needs the long period to fulfil assignment greater than 1 when the operation of no-load high speed gear.
The utility model content
The purpose of this utility model provides the bracing or strutting arrangement that a kind of volume is little, transmitting ratio is big.This device can be realized motor (or air motor) drive transmission device.
For achieving the above object, technical solution of the present utility model is:
The utility model is a kind of bracing or strutting arrangement, it comprises pipe, interior duct member, driving system, foot part, described driving system is installed in the top of pipe, and described interior duct member is nested with in last pipe, and the top of interior duct member connects driving system, bottom connecting pin parts; Described driving system mainly is made up of the few tooth difference driving system of at least one cover, conical gear pair and screw rod; Described few tooth difference driving system connects conical gear, conical gear connecting screw rod.
Described few tooth difference driving system mainly is made up of housing, input shaft, adapter plate, slide block, satellite gear, bearing, cam, center gear, output sleeve, gear shift slide key, support and output shaft; Described center gear is an annular solid, has internally toothed annulus; Adapter plate is fixed in an inwall of housing, and adapter plate and support are fixed together by screw, forms an installing space, and described slide block, satellite gear, bearing, cam, center gear, output sleeve all are installed in this installing space; Described cam is fixed on the input shaft, the outer socket bearing of cam, and bearing outside connects satellite gear, the external toothing of satellite gear and the engagement of the internally toothed annulus of center gear; The inner end surface and the output sleeve of center gear are affixed, and output sleeve slips on the bearing seat of support by bearing; Described input shaft and the coaxial setting of output shaft, the activity of gear shift slide key are nested with in output shaft in the stomidium; Described input shaft is a stepped shaft, it penetrates housing and can move around along axis, it penetrates on portion's macro-axis pivot bush unit adapter plate, slide block, cam and center gear in regular turn, little movable being set on the gear shift slide key that input shaft penetrates portion also can move around in the stomidium in output shaft by the fastener drive gear shift slide key of being located on its end, forms the clamping of gear shift slide key and output shaft and breaks away from two kinds of mode of operations.
Two end faces of described slide block have orthogonal projection respectively, offer the rectangle sliding tray on the end face of adapter plate and satellite gear, and the projection on two end faces of slide block slips with the rectangle sliding tray of the end face of adapter plate and satellite gear respectively.
Described few tooth difference driving system mainly is made up of housing, input shaft, eccentric wheel, bearing, satellite gear, center gear, straight pin, roll sleeve, reaction plate and output shaft; Described center gear is the ladder cylinder, the small cylinder endoporus constitutes axis hole, and the large cylinder inner chamber constitutes internally toothed annulus, and the small cylinder endoporus is fixedly sleeved in output shaft the inner, the outer end of output shaft is fixed on the drive bevel gear of conical gear, being fixed on the screw rod from the mantle tooth of conical gear; Described input shaft penetrates housing and can move around along axis, its portion of penetrating is pivot bush unit reaction plate, eccentric wheel and center gear in regular turn, input shaft and the coaxial setting of output shaft, reaction plate is fixed in an inwall of housing, and support abuts on the another side inwall of housing and reaction plate and support are fixed together by screw; Eccentric wheel is fixed on the input shaft, eccentric wheel sleeve connects bearing, bearing outside connects satellite gear, on the plane of satellite gear, be provided with a plurality of axis holes, the straight pin of on these a plurality of axis holes, pegging graft respectively, be provided with identical with the planet wheel spindle hole number on reaction plate and the corresponding pin-and-hole in position, described roll sleeve is nested with in this pin-and-hole, and the straight pin activity that is plugged on satellite gear is plugged in the roll sleeve; The external toothing of described satellite gear and the engagement of the internally toothed annulus of center gear.
Described housing is a last pipe top inner chamber.
The utility model also comprises a baseplate, this baseplate periphery is fixed in pipe top inner chamber, the affixed from the mantle tooth of baseplate mesopore and conical gear passed in described screw rod upper end, between the step surface on baseplate lower surface and screw rod top, be provided with thrust bearing, rotate so that screw rod can lean at thrust bearing.
The utility model also comprises an external change speed gear box, and described external change speed gear box comprises deceleration box, few tooth difference driving system, electronic engage a gear device, height quick change latch device; Described few tooth difference driving system is by duplex center gear, satellite gear, reaction plate, bearing, eccentric wheel, electronic input shaft, straight pin, roll sleeve; Described electronic engage a gear device comprises shift shaft, spring pin, change gear; Described height quick change latch device comprises input shaft, input shaft gear; Described input shaft, shift shaft, electronic input shaft activity respectively are plugged on drop-gear box body upper, middle and lower portion; Described duplex center gear is the ladder cylinder, and the small cylinder endoporus constitutes axis hole, external cylindrical surface is provided with external toothing, and the large cylinder inner chamber constitutes internally toothed annulus, and the small cylinder endoporus is actively socketed on the electronic input shaft by bearing; Rotatable being inserted in of described electronic input shaft is built on the intrinsic bearing of drop-gear box, described eccentric wheel is fixed on the electronic input shaft, eccentric wheel sleeve connects bearing, bearing outside connects satellite gear, the straight pin activity that is plugged on the satellite gear is set in the roll sleeve of reaction plate, the internally toothed annulus engagement of the external toothing of satellite gear and duplex center gear, the external toothing of duplex center gear and the change gear engagement that is fixed on the shift shaft, change gear and the input shaft gear engagement that is fixed on the input shaft.
Described few tooth difference driving system mainly by be with eccentric input shaft, one-level satellite gear, be with eccentric floating disc, secondary planet wheel, bearing, center gear, straight pin, roll sleeve, output sleeve and output shaft form; Described center gear is fixed in the housing, and its inner chamber has the internally toothed annulus that two circles are arranged in parallel; Be with the satellite gear of socket one-level in regular turn on the eccentric input shaft, be with eccentric floating disc and secondary planet wheel, on the described one-level satellite gear socket bearing, bearing carrier ring is connected on is with eccentric input shaft to have on the eccentric wheel section, the straight pin activity on the one-level satellite gear of being plugged on is set in the roll sleeve with eccentric floating disc, first row's internally toothed annulus engagement of the external toothing of one-level satellite gear and center gear; The secondary planet wheel is connected on by bearing carrier ring to be with on the eccentric input shaft, and the straight pin activity that is plugged on the secondary planet wheel is set in the roll sleeve of output sleeve, the second series internally toothed annulus engagement of the external toothing of secondary planet wheel and center gear; Described output shaft the inner is fixed on the output sleeve, and the outer end of output shaft is fixed on the drive bevel gear of conical gear; Be with the coaxial setting of eccentric input shaft and output shaft.
After adopting such scheme, be applied in the bearing set owing to the utility model will lack tooth difference driving system, thereby have the following advantages:
1, adopt gearing with small teeth differenc can make the driving system of bearing set be easy to realize bigger transmitting ratio, can make bearing set manage quick-expansion more under idle condition, save work-hours, bearing set under severe duty in the pipe ratio of elongation slower, M/C is more laborsaving, and being fit to widely, the crowd uses.
2, adopt gearing with small teeth differenc that the driving system of bearing set is easy to and high-revolving motor or air motor coupling, realize operation automatically.
3, adopt the driving system of gearing with small teeth differenc can manufacture and design to such an extent that relative size is smaller, the structure letter is gathered, saving in material and manufacturing cost.
4, the utility model involute less tooth difference driving device input shaft can move axially, and drives the engagement or the disengaging of satellite gear slip and center gear, realizes at a high speed and the low speed gear shift.
5, the device of putting into gear in the external change speed gear box of the utility model, after the electronic few tooth difference of drop-gear box one-level is slowed down three gears are set and form two groups of meshed transmission gear, intermediate gear is installed and is fixed on the axle of putting into gear, spurring the axle of putting into gear moves, make two groups of gears be in engagement or disengaged position, thus fine finishing connecting and the requirement of putting into gear of isolation of motor transmission shaft and manual input shaft.
Description of drawings
Fig. 1 is the three-dimensional exploded view of first embodiment of the utility model;
Fig. 2 is the cutaway view of first embodiment of the utility model;
Fig. 3 is the axonometric drawing of first embodiment driving system of the utility model;
Fig. 4 is the three-dimensional exploded view of second embodiment of the utility model;
Fig. 5 is the cutaway view of second embodiment of the utility model;
Fig. 6 is the axonometric drawing of second embodiment driving system of the utility model;
Fig. 7 is the three-dimensional exploded view of the 3rd embodiment of the utility model;
Fig. 8 is the cutaway view of the 3rd embodiment of the utility model;
Fig. 9 is the axonometric drawing of the 3rd embodiment driving system of the utility model;
Figure 10 is the cutaway view of the 4th embodiment of the utility model;
Figure 11 is the power transmission scheme drawing of the 4th the external change speed gear box of embodiment of the utility model.
The specific embodiment
As shown in Figure 1, first embodiment of the utility model bracing or strutting arrangement.It is the built-in bearing set of a kind of double speed.It comprises pipe 10A, interior duct member 20A, driving system 30A, foot part 40A.
Described driving system 30A is installed in the top of pipe 10A, duct member 20A activity is nested with in last pipe 10A also and manages 10A on can be relatively and move up and down in described, so that make progress the jack-up car body, the top of interior duct member 20A connects driving system 30A, bottom connecting pin parts 40A.
As shown in Figure 1 and Figure 2, described driving system 30A mainly is made up of the few tooth difference driving system 1A of a cover, cylindrical gear pair 2A, secondary 3A of conical gear, thrust bearing 4A, gear wheel shaft 5A, screw rod 6A, baseplate 7A.
Active cylindrical wheel 21A among the described cylindrical gear pair 2A is socketed on the output shaft 107A of few tooth difference driving system 1A, the initiative taper tooth 31A engagement among driven cylindrical gear 22A and the secondary 3A of conical gear.Described baseplate 7A periphery is fixed in pipe 10A top inner chamber, described screw rod 6A passes baseplate 7A mesopore in the upper end, by groove pin 71A be fixed in secondary 3A of conical gear in mantle tooth 32A mesopore, between mantle tooth 32A and baseplate 7A, be provided with the pad 72A that hardens.Between the step surface 61A on baseplate 7A lower surface and screw rod 6A top, be provided with thrust bearing 8A, rotate so that screw rod 6 can lean at thrust bearing 4A.
Described few tooth difference driving system 1A mainly is made up of housing 11A, input shaft 12A, bearing seat 13A, bearing 14A, adapter plate 15A, slide block 16A, stop washer 17A, satellite gear 18A, bearing 19A, cam 101A, center gear 102A, bearing 103A, output sleeve 104A, support 105A, gear shift slide key 106A and output shaft 107A.Described center gear 102A is an annular solid, has internally toothed annulus; Adapter plate 15A is fixed in the inwall of housing 11A, adapter plate 15A and support 105A are fixed together by screw, form an installing space, described slide block 16A, satellite gear 18A, bearing 14A, cam 101A, center gear 102A, output sleeve 104A all are installed in this installing space.Described cam 101A is fixed on the input shaft 12A, the outer socket bearing 19A of cam 101A, the outer socket satellite gear 18A of bearing 19A, the internally toothed annulus engagement of the external toothing of satellite gear 18A and center gear 102A; The inner end surface of center gear 102A and output sleeve 104A are affixed, and output sleeve 104A slips on the bearing seat of support 105A by bearing 103A; Described input shaft 12A and the coaxial setting of output shaft 107A, gear shift slide key 106A activity is nested with in the interior stomidium 1071A of output shaft 107A; Described input shaft 12A is a stepped shaft, it penetrates housing 11A and can move around along axis, it penetrates on portion's macro-axis pivot bush unit adapter plate 15A, slide block 16A, cam 101A and center gear 102A in regular turn, the movable gear shift slide key 106A that is set in of little axle that input shaft 12A penetrates portion goes up also and can move around in the stomidium 1071A in output shaft 107A by fastener 108A (circlip) the drive gear shift slide key 106A that is located on its end, form two kinds of mode of operations of clamping and disengaging of gear shift slide key 106A and output shaft 107A, carry out high speed and low-tach gear shift.
Two end faces of described slide block 16A have orthogonal projection 161A, 162A respectively, offer rectangle sliding tray 151A, 181A on the end face of adapter plate 15A and satellite gear 18A, projection 161A, the 162A on two end faces of slide block slips with rectangle sliding tray 151A, the 181A of the end face of adapter plate 15A and satellite gear 18A respectively.
Principle of work of the present utility model:
1, bottom gear transmission
Hand will rotatablely move by crank and pass to input shaft 12A, make cam 101A rotation by flat key 109A, make the satellite gear 18A rotation that is contained in bearing 19A outer ring by bearing 19A again.The internally toothed annulus engagement of the external toothing of satellite gear 18A and center gear 102A, in satellite gear 18A when rotation, is because slide block 16A can only sliding and swaying like this, and the satellite gear 18A external toothing number of teeth and center gear 102A internally toothed annulus have the number of teeth poor (1-4 tooth), and rotatablely moving of satellite gear 18A impels center gear 102A rotation at a slow speed in the same way.Center gear 102A rotatablely moves through output sleeve 104A, gearshift slide key 106A, output shaft 107A, cylindrical gear pair 2A, and outputs such as secondary 3A of conical gear rotatablely move, and realize the bottom gear transmission of bearing set.
2, top gear transmission
When using top gear, input shaft 12A upwards managed push certain stroke in 10, input shaft 12A right-hand member promotes gearshift slide key 106A and moves to right, gearshift slide key 106A breaks away from output sleeve 104A engagement, input shaft 12A and gearshift slide key 106A, output shaft 107A engagement realize that input shaft 12A and output shaft 107A rotate in the same way with speed simultaneously.Satellite gear 18A and center gear 102A etc. do not carry out transmission.
3, gear shift operation
From top gear when bottom gear switches, input shaft 12A is moved to the left, input shaft 12A right-hand member circlip 108A pulling gearshift slide key 106A moves to left, make output sleeve 104A, gearshift slide key 106A, output shaft 107A enter engagement, while input shaft 12A two keyways and gearshift slide key 106A left end projection jump out of mesh, the drive state of realization bottom gear.
From low speed when top gear switches, with input shaft 12A reverse propulsion, the input shaft 12A right-hand member shaft shoulder promotes gearshift slide key 106A and moves to right, make output sleeve 104A, gearshift slide key 106A jump out of mesh state, input shaft 12A two keyways enter engagement with gearshift slide key 106A left end projection simultaneously, realize the drive state of top gear.
The advantage of the built-in bearing set of present embodiment double speed:
1, uses the driving system of involute less tooth difference technical design bracing or strutting arrangement;
2, few tooth difference mechanism is installed in the framed structure of support 105A and adapter plate 15A composition, and integral rigidity is good, and is easy to assembly.This structure can design and installation in last pipe 10A inside, but also design and installation adapts to different transmission application requirements in last pipe 10A outside.
3, use framework design, integral structure good rigidly, general assembly again after can independently earlier assembling; But independent tubular construction design and installation is in last pipe 10A inside, but also design and installation adapts to different transmission application requirements in last pipe 10A outside.
4, present embodiment adopts slide block 16A structure, good rigidly, not easy fracture.
5, present embodiment is to cooperate with output shaft 107A by gearshift slide key 106A to realize gear shift, and action realizes easily.
As shown in Figure 4, second embodiment of the utility model bracing or strutting arrangement, it is the built-in bearing set of a kind of double speed.It comprises pipe 10, interior duct member 20, driving system 30, foot part 40.
Described driving system 30 is installed in pipe 10 top, described in duct member 20 activities be nested with last pipe 10 in and can be relatively on manage 10 and move up and down so that make progress the jack-up car body, the top connection driving system 30 of interior duct member 20, bottom connecting pin parts 40.
As Fig. 5, shown in Figure 6, described driving system 30 mainly is made up of the few tooth difference driving system 1 of a cover, conical gear pair 2, screw rod 3, baseplate 4, thrust bearing 5.
Described baseplate 4 peripheries be fixed in the pipe 10 top inner chambers, baseplate 4 mesopores are passed in described screw rod 3 upper ends, by groove pin 41 be fixed in conical gear pair 2 in mantle tooth 22 mesopores, between mantle tooth 22 and baseplate 4, be provided with the pad 42 that hardens.Screw rod 3 between the step surface 31 on baseplate 4 lower surfaces and screw rod 3 tops, is provided with thrust bearing 5, so that can lean in thrust bearing 5 rotations.
Described few tooth difference driving system 1 mainly is made up of housing 11, input shaft 12, reaction plate 13, lining 14, straight pin 15, roll sleeve 16, satellite gear 17, bearing 18, eccentric wheel 19, pad 100, lining 101, elastic scheibe 102, lining 103, center gear 104, lining 105, output shaft 106, spring pin 107, support 108.
In the present embodiment, described housing 11 is last pipe 10 top inner chambers, certainly, housing also can be used as one independently parts be connected with last pipe 10.
Described center gear 104 is ladder cylinder (as Fig. 5, shown in Figure 6), small cylinder endoporus 1041 constitutes axis hole, the large cylinder lumen port constitutes internally toothed annulus 1042, small cylinder endoporus 1041 is fixedly sleeved in output shaft 106 the inners, the outer end of output shaft 106 is fixed on the drive bevel gear 21 of conical gear 2, being fixed on the screw rod 3 from mantle tooth 22 of conical gear 2;
Described input shaft 12 penetrates housing 11 and can move around along axis, to realize height quick change shelves.Input shaft 12 and output shaft 106 coaxial settings, the portion of penetrating of input shaft 12 is pivot bush unit reaction plate 13, eccentric wheel 19 and center gear 104 in regular turn, reaction plate 13 is fixed on an inwall of housing 11 by screw 110, support 108 abuts on the another side inwall of housing 11, and reaction plate 13 and support 108 are fixed together by screw.Eccentric wheel 19 is fixed on the input shaft by flat key 109, eccentric wheel 19 outer socket bearings 18, bearing 18 outer socket satellite gears 17, on the plane of satellite gear 17, be provided with a plurality of axis holes 171, the straight pin 15 of on these a plurality of axis holes 171, pegging graft respectively, be provided with identical with satellite gear 17 axis holes 171 quantity on reaction plate 19 and the corresponding pin-and-hole 191 in position, described roll sleeve 16 is nested with in this pin-and-hole 191, and straight pin 15 activities that are plugged on the satellite gear 17 are plugged in the roll sleeve 16; Internally toothed annulus 1042 engagements of the external toothing of described satellite gear 17 and center gear 104.
The principle of work of present embodiment:
1, bottom gear transmission
Hand will rotatablely move by crank and pass to input shaft 12, make eccentric wheel 19 rotations by flat key 109, make satellite gear 17 rotations that are contained in outside race by bearing 18 again, straight pin 15 is arranged on the satellite gear 17, roll sleeve 16, and roll sleeve 16 is contained in the reaction plate 13 corresponding holes, the internally toothed annulus engagement of the external toothing of satellite gear 17 and center gear 104, like this during satellite gear 17 rotation since straight pin 15 in reaction plate 13, can not rotate around input shaft 12 centers, can only sliding and swaying, and the satellite gear 17 external toothing numbers of teeth and center gear 104 internally toothed annuluss have the number of teeth poor (14 tooth), and rotatablely moving of satellite gear 17 impels center gear 104 rotation at a slow speed in the same way.Rotatablely moving of center gear 104 through spring pin 107, output shaft 106, active conical gear 21 and rear portion transmission device.Realize the bottom gear transmission of bearing set.
2, top gear transmission
In the time will using top gear, input shaft 12 upwards managed push certain stroke in 10, because the structure of input shaft 12, it drives 10 centers of upwards managing simultaneously such as flat key 109, eccentric wheel 19, bearing 18, satellite gear 17, straight pin 15, roll sleeve 16 and pad 100, circlip 102 and moves, and impels the internally toothed annulus jump out of mesh state of satellite gear 17 external toothings and center gear 104.Input shaft 12 is when upwards managing in 10 motion, and the flat bit architecture of its right-hand member is inserted in the groove of output shaft 106 left ends.Input shaft 12 rotatablely moves and is directly passed to output shaft 106 like this, though output shaft 106 passes to center gear 104 by spring pin 107 with rotation again, it only dallies.Output shaft 106 will rotatablely move by spring pin 107 and pass to initiatively conical gear 21 and rear portion transmission device, realize the top gear transmission of bearing set.
3, gear shift operation
When needs from low speed when top gear switches, as long as input shaft 12 is upwards managed 10 to be advanced, the boss of input shaft 12 promotes bearing 18, satellite gear 17, pad 100, circlip 102 and straight pin 15 and roll sleeve 16 moves to tube hub simultaneously, after moving certain stroke, satellite gear 17 and center gear 104 jump out of mesh states, simultaneously, insert in the output shaft left end groove the flat position of input shaft 12 right-hand members, and input shaft directly drives the output shaft rotation, realized the high speed transmission.
From at a high speed when bottom gear switches, as long as input shaft 12 is oppositely pulled out, circlip 102 pulling pads 100, bearing 18, satellite gear 17, flat key 109, eccentric wheel 19 and straight pin 15 and the roll sleeve 16 of input shaft 12 are moving to the left wall shift of pipe simultaneously, after moving certain stroke and turn an angle, satellite gear 17 enters engagement with center gear 104, simultaneously, output shaft left end groove is deviate from the flat position of input shaft 12 right-hand members, realizes the low speed transmission.
The advantage of the built-in bearing set of present embodiment double speed:
1, uses the driving system of involute less tooth difference technical design bracing or strutting arrangement;
2, few tooth difference mechanism is installed in the framed structure of support 108 and reaction plate 103 compositions, and integral rigidity is good, and is easy to assembly.This structure can design and installation in last pipe 10 inside, but also design and installation adapts to different transmission application requirements in last pipe 10 outsides.
3, an end bearing of output shaft 106 is at last pipe 10 walls, the other end be bearing in few tooth difference center gear on, center gear 104 is bearing on the support 104 by lining 103 again, supporting rigidity is good.The lining 14 that input shaft 12 left ends are bearing in framework puts, and right-hand member is bearing on the lining 101 of center gear 104, is convenient to guarantee the assembling right alignment requirement of input shaft 12 and output shaft 106.
4, eccentric wheel 19 adopts flat key 109 to be connected with input shaft 12, and convenient for assembly, the structure letter is gathered.
5, use framework design, integral structure good rigidly, general assembly again after can independently earlier assembling; But independent tubular construction design and installation is in last pipe 10 inside, but also design and installation adapts to different transmission application requirements in last pipe 10 outsides.
6, satellite gear supports with antifriction-bearing box, and coefficient of friction is little, the driving efficiency height; This device M/C, rotating speed is low, and input shaft 12, output shaft 106 usefulness lining supporting structures are simple, and cost is low.
As Fig. 7, shown in Figure 8, the 3rd embodiment of the utility model bracing or strutting arrangement is electronic two-stage bearing set, its basic structure and first and second embodiment are basic identical, are the few tooth difference driving system difference that is adopted, employing be the few tooth difference driving system of two-stage.
The few tooth difference driving system 1 ' of described two-stage is mainly by DC machine 11 ', connecting plate for electric motor 12 ', left cover 13 ', bearing seat 14 ', seal ring 15 ', bearing 16 ', one-level satellite gear 17 ', be with eccentric input shaft 18 ', straight pin 19 ', roll sleeve 101 ', bearing 102 ', be with eccentric floating disc 103 ', bearing 104 ', secondary planet wheel 105 ', roll sleeve 106 ', straight pin 107 ', center gear 108 ', bearing 109 ', output sleeve 110 ', spring pin 111 ', middle lining 112 ', output shaft 113 ', spring pin 114 ', right lining 115 ', housing 116 ' is formed.
Described DC machine 11 ' is fixed in the outer wall of housing 116 ', motor output shaft is connected with being with eccentric input shaft 18 ', eccentric input shaft 18 ' rotation is with in drive, between DC machine 11 ' and housing 116 ' outer wall, be provided with connecting plate for electric motor 12 ' and left cover 13 ', bearing seat 14 ' is fixed on the inwall of housing 116 ', offers the centre hole that passes for eccentric input shaft 18 ' at the middle part of connecting plate for electric motor 12 ', left cover 13 ', bearing seat 14 '.
Described center gear 108 ' is fixed in the housing 116 ', and its inner chamber has the internally toothed annulus 1081 ', 1082 ' that two circles are arranged in parallel; Describedly be with the satellite gear of socket one-level in regular turn 17 ' on the eccentric input shaft 18 ', be with eccentric floating disc 103 ' and secondary planet wheel 105 ', described one-level satellite gear 17 ' is socketed on the bearing 102 ', bearing 102 ' is socketed in is with eccentric input shaft 18 ' to have on 181 ' section of the eccentric wheel, the straight pin 19 ' activity on the one-level satellite gear 17 ' of being plugged on is set in the roll sleeve 101 ' with eccentric floating disc 103 ', first row's internally toothed annulus, the 1081 ' engagement (as shown in Figure 9) of the external toothing of one-level satellite gear 17 ' and center gear; Secondary planet wheel 105 ' is socketed in by bearing 104 ' and is with on the eccentric input shaft 18 ', straight pin 107 ' the activity that is plugged on the secondary planet wheel 105 ' is set in the roll sleeve 106 ' of output sleeve 110 ', the external toothing of secondary planet wheel 105 ' and the 1082 ' engagement of the second series internally toothed annulus of center gear 108 '; Described output shaft 113 ' the inner is fixed on the output sleeve 110 ' by spring pin 111 ', the outer end of output shaft 113 ' is fixed on the drive bevel gear 21 ' of conical gear pair 2 ' by spring pin 114 ', is with eccentric input shaft 18 ' and output shaft 113 ' coaxial setting.
The principle of work of present embodiment:
Be with eccentric input shaft 18 ' rotation by rotatablely moving of power plant (motor or air motor), be with on the eccentric input shaft 18 ' and be shaped on eccentric wheel 181 ', this eccentric wheel 181 ' is gone up bearing 102 ' is installed, one-level satellite gear 17 ' is equipped with in bearing 102 ' outer ring, one-level satellite gear 17 ' external toothing meshes with the internally toothed annulus of the center gear of fixing 108 ', because one-level satellite gear 17 ' the external toothing number of teeth and center gear 108 ' internally toothed annulus have the number of teeth poor (1-4 tooth), under the combined action of eccentric wheel and permanent center wheel 108 ', make planet motion with rotatablely moving of eccentric input shaft 18 '.The rotation of secondary planet wheel 105 ' will rotatablely move to pass to have and eccentricly be with eccentric floating disc 103 ' to rotate by being fixed on straight pin 107 ', roll sleeve 106 ' on the secondary planet wheel 105 ' again.Realize the reverse deceleration transmission of one-level.
With the secondary eccentric wheel of making one with eccentric floating disc 103 ' bearing 102 ' is housed, secondary planet wheel 105 ' is equipped with in bearing 102 ' outer ring, secondary planet wheel 105 ' external toothing meshes with the internally toothed annulus of the center gear of fixing 108 ', because secondary planet wheel 105 ' the external toothing number of teeth and center gear 108 ' internally toothed annulus have the number of teeth poor (1-4 tooth), under the combined action of eccentric wheel 181 ' and permanent center wheel 108 ', make planet motion with rotatablely moving of eccentric floating disc 103 '.To rotatablely move by straight pin 107 ', roll sleeve 106 ' again and pass to output sleeve 110 ', realize the reverse deceleration transmission in the second stage.Output sleeve 110 ' is with spring pin 111 ', 114 ' fixing with output shaft 113 ', drive bevel gear 21, and drive bevel gear 21 will rotatablely move and pass transmission backward.
Be with eccentric input shaft 18 ' oppositely to slow down through secondary, output shaft 113 ' obtains rotatablely moving of big retarding ratio in the same way.
The advantage of the electronic two-stage bearing set of present embodiment:
1, uses the driving system of involute less tooth difference technical design bracing or strutting arrangement;
2, independently tubular construction design of few tooth difference mechanism, integral structure good rigidly, general assembly again after can independently earlier assembling; Independent tubular construction design has hermetically-sealed construction.The anterior high deceleration mechanism of few tooth difference can use different lubricants with follow-up transmission device at a slow speed; Few tooth difference mechanism can use liquid lubricating oil, reduces watt loss, and the follow-up grease of transmission device is at a slow speed simplified hermetically-sealed construction, cost-cutting.But independent tubular construction design and installation is inner at last pipe, but also design and installation is outside at last pipe, adapts to different transmission application requirements.
3, an end bearing of output shaft 113 ' is at last pipe 10 walls, and the other end is bearing on the output sleeve 110 ' of few tooth difference tubular construction.Supporting rigidity is good.Input shaft 18 ' left end is convenient to guarantee the assembling right alignment requirement of input shaft 18 ' and output shaft 113 ' with advancing also to be bearing on the output sleeve 110 '.
4, input shaft 18 ' is made one, secondary eccentric wheel and floating disc with eccentric wheel and is made one, makes scantling of structure less, reduces number of parts, and assembly precision guarantees easily.
5, the two ends of input shaft 18 ', the supporting of I and II satellite gear, floating disc all adopt antifriction-bearing box supporting coefficient of friction little, the driving efficiency height.
6, output sleeve 110 ', active conical gear 21 ' adopt spring pin to connect with being connected of output shaft 113 ', and be simple in structure, easy to assembly.
7, adopt the involute less tooth difference driving device, realize motor (air motor) direct drive.
As shown in figure 10, the 4th embodiment of the utility model bracing or strutting arrangement is external change speed gear box three fast bearing sets, and its basic structure and second embodiment are basic identical, have just set up an external change speed gear box.
Described external change speed gear box 50 comprises deceleration box 51, few tooth difference driving system 52, electronic engage a gear device 53, height quick change latch device 54.
Described deceleration box 51 is to be snapped together by drop-gear box body 511 and gear box cover 512 to constitute.Described few tooth difference driving system 52 is by lining 521, duplex center gear 522, satellite gear 523, reaction plate 524, spacer 525, antifriction-bearing box 526, eccentric wheel 527, electronic input shaft 528, flat key 529, antifriction-bearing box 520, straight pin 5201, roll sleeve 5202;
Described electronic engage a gear device 53 comprises shift shaft 531, lining 532, spring pin 533, change gear 534.
Described height quick change latch device 54 comprises input shaft 541, lining 542, spring pin 543, input shaft gear 544.
Described input shaft 541, shift shaft 531, electronic input shaft 528 activity respectively are plugged on casing 51 upper, middle and lower portions (as shown in figure 41), and the input shaft 12 on input shaft 541 and the driving system 30 is same axis body; Described duplex center gear 522 is the ladder cylinder, and small cylinder endoporus 5221 constitutes axis hole, external cylindrical surface is provided with external toothing, and the large cylinder inner chamber constitutes internally toothed annulus, and small cylinder endoporus 5221 is actively socketed on the electronic input shaft 528 by bearing; Described electronic input shaft 528 rotatable being inserted on the antifriction-bearing box 520 that is built in the deceleration box 51, described eccentric wheel 527 is fixed on the electronic input shaft 528 by flat key 529, eccentric wheel 527 outer socket antifriction-bearing boxs 526, antifriction-bearing box 526 outer socket satellite gears 523, straight pin 5201 activities that are plugged on the satellite gear 523 are set in the roll sleeve 5202 of reaction plate 524, the internally toothed annulus engagement of the external toothing of satellite gear 523 and center gear 522, the external toothing of center gear 522 and change gear 534 engagements that are fixed on the shift shaft 531, change gear 534 and input shaft gear 544 engagements that are fixed on the input shaft 541, thereby the transmission of realization power.Described input shaft gear 544 is fixed on the input shaft 541 by spring pin 543.
In the present embodiment, also available traditional transmission system replaces few tooth difference driving system, also can reach certain effect that the utility model has.
The principle of work of present embodiment:
1, electronic (or pneumatic)
The one-level drop-gear box is to pass to electronic input shaft 528 by rotatablely moving of power plant (motor or air motor), make eccentric wheel 527 rotations by flat key 529, make satellite gear 523 rotations that are contained in antifriction-bearing box 526 outer rings by antifriction-bearing box 526 again, straight pin 5201 is arranged on the satellite gear 523, roll sleeve 5202, and roll sleeve 5202 is contained in the reaction plate 524 corresponding holes, the internally toothed annulus engagement of the external toothing of satellite gear 523 and duplex center gear 522, like this during satellite gear 523 rotation since straight pin 5201 and roll sleeve 5202 in reaction plate 524, can not rotate around electronic input shaft 528 centers, can only sliding and swaying, and the satellite gear 523 external toothing numbers of teeth and duplex center gear 522 internally toothed annuluss have the number of teeth poor (1-4 tooth), the cylindrical wheel rotation at a slow speed in the same way that rotatablely moves and impel duplex center gear 522 and make one of satellite gear 523 with duplex center gear 522, and through shift shaft 531, change gear 534, input shaft gear 544, electronic input shaft 528 is rotatablely moved in the same way.
2, manual
In the time will using manual retaining, the device of must will putting into gear switches to neutral gear position, operates by the high bottom gear of the built-in bearing set of double speed as required then.
3, gear shift operation
The shift shaft 531 of drop-gear box is pulled out, make two groups of gears of putting into gear be in disengaged position, form neutral, can carry out manual high low speed transmission.In the time will carrying out electronic transmission, the shift shaft 531 of drop-gear box is advanced out, make two groups of gears of putting into gear be in engagement, formation is put into gear, and can carry out electronic transmission.
The advantage of the external change speed gear box three fast bearing sets of present embodiment:
1, uses the driving system of involute less tooth difference technical design bracing or strutting arrangement;
2, move axially by the axle 531 of shifting gears, drive cylindrical wheel and slide, make and external toothing engagement or separation have realized gear-change operation at an easy rate.
3, adopt the involute less tooth difference driving device, realize motor (air motor) direct drive.
Claims (8)
1, a kind of bracing or strutting arrangement, it comprises pipe, interior duct member, driving system, foot part, and described driving system is installed in the top of pipe, and described interior duct member is nested with in last pipe, and the top of interior duct member connects driving system, bottom connecting pin parts; It is characterized in that: described driving system mainly is made up of the few tooth difference driving system of at least one cover, conical gear pair and screw rod; Described few tooth difference driving system connects conical gear, conical gear connecting screw rod.
2, bracing or strutting arrangement according to claim 1 is characterized in that: described few tooth difference driving system mainly is made up of housing, input shaft, adapter plate, slide block, satellite gear, bearing, cam, center gear, output sleeve, gear shift slide key, support and output shaft; Described center gear is an annular solid, has internally toothed annulus; Adapter plate is fixed in an inwall of housing, and adapter plate and support are fixed together by screw, forms an installing space, and described slide block, satellite gear, bearing, cam, center gear, output sleeve all are installed in this installing space; Described cam is fixed on the input shaft, the outer socket bearing of cam, and bearing outside connects satellite gear, the external toothing of satellite gear and the engagement of the internally toothed annulus of center gear; The inner end surface and the output sleeve of center gear are affixed, and output sleeve slips on the bearing seat of support by bearing; Described input shaft and the coaxial setting of output shaft, the activity of gear shift slide key are nested with in output shaft in the stomidium; Described input shaft is a stepped shaft, it penetrates housing and can move around along axis, it penetrates on portion's macro-axis pivot bush unit adapter plate, slide block, cam and center gear in regular turn, little movable being set on the gear shift slide key that input shaft penetrates portion also can move around in the stomidium in output shaft by the fastener drive gear shift slide key of being located on its end, forms the clamping of gear shift slide key and output shaft and breaks away from two kinds of mode of operations.
3, bracing or strutting arrangement according to claim 2, it is characterized in that: two end faces of described slide block have orthogonal projection respectively, offer the rectangle sliding tray on the end face of adapter plate and satellite gear, the projection on two end faces of slide block slips with the rectangle sliding tray of the end face of adapter plate and satellite gear respectively.
4, bracing or strutting arrangement according to claim 1 is characterized in that: described few tooth difference driving system mainly is made up of housing, input shaft, eccentric wheel, bearing, satellite gear, center gear, straight pin, roll sleeve, reaction plate and output shaft; Described center gear is the ladder cylinder, the small cylinder endoporus constitutes axis hole, and the large cylinder inner chamber constitutes internally toothed annulus, and the small cylinder endoporus is fixedly sleeved in output shaft the inner, the outer end of output shaft is fixed on the drive bevel gear of conical gear, being fixed on the screw rod from the mantle tooth of conical gear; Described input shaft penetrates housing and can move around along axis, its portion of penetrating is pivot bush unit reaction plate, eccentric wheel and center gear in regular turn, input shaft and the coaxial setting of output shaft, reaction plate is fixed in an inwall of housing, and support abuts on the another side inwall of housing and reaction plate and support are fixed together by screw; Eccentric wheel is fixed on the input shaft, eccentric wheel sleeve connects bearing, bearing outside connects satellite gear, on the plane of satellite gear, be provided with a plurality of axis holes, the straight pin of on these a plurality of axis holes, pegging graft respectively, be provided with identical with the planet wheel spindle hole number on reaction plate and the corresponding pin-and-hole in position, described roll sleeve is nested with in this pin-and-hole, and the straight pin activity that is plugged on satellite gear is plugged in the roll sleeve; The external tooth figure of described satellite gear and the internal tooth figure of center gear engagement.
5, according to claim 2 or 4 described bracing or strutting arrangements, it is characterized in that: described housing is a last pipe top inner chamber.
6, bracing or strutting arrangement according to claim 5, it is characterized in that: it also comprises a baseplate, this baseplate periphery is fixed in pipe top inner chamber, the affixed from the mantle tooth of baseplate mesopore and conical gear passed in described screw rod upper end, between the step surface on baseplate lower surface and screw rod top, be provided with thrust bearing, rotate so that screw rod can lean at thrust bearing.
7, bracing or strutting arrangement according to claim 2 is characterized in that: it also comprises an external change speed gear box, and described external change speed gear box comprises deceleration box, few tooth difference driving system, electronic engage a gear device, height quick change latch device; Described few tooth difference driving system is by duplex center gear, satellite gear, reaction plate, bearing, eccentric wheel, electronic input shaft, straight pin, roll sleeve; Described electronic engage a gear device comprises shift shaft, spring pin, change gear; Described height quick change latch device comprises input shaft, input shaft gear; Described input shaft, shift shaft, electronic input shaft activity respectively are plugged on drop-gear box body upper, middle and lower portion; Described duplex center gear is the ladder cylinder, and the small cylinder endoporus constitutes axis hole, external cylindrical surface is provided with external toothing, and the large cylinder inner chamber constitutes internally toothed annulus, and the small cylinder endoporus is actively socketed on the electronic input shaft by bearing; Rotatable being inserted in of described electronic input shaft is built on the intrinsic bearing of drop-gear box, described eccentric wheel is fixed on the electronic input shaft, eccentric wheel sleeve connects bearing, bearing outside connects satellite gear, the straight pin activity that is plugged on the satellite gear is set in the roll sleeve of reaction plate, the internally toothed annulus engagement of the external toothing of satellite gear and duplex center gear, the external toothing of duplex center gear and the change gear engagement that is fixed on the shift shaft, change gear and the input shaft gear engagement that is fixed on the input shaft.
8, bracing or strutting arrangement according to claim 1 is characterized in that: described few tooth difference driving system mainly by be with eccentric input shaft, one-level satellite gear, be with eccentric floating disc, secondary planet wheel, bearing, center gear, straight pin, roll sleeve, output sleeve and output shaft form; Described center gear is fixed in the housing, and its inner chamber has the internally toothed annulus that two circles are arranged in parallel; Be with the satellite gear of socket one-level in regular turn on the eccentric input shaft, be with eccentric floating disc and secondary planet wheel, on the described one-level satellite gear socket bearing, bearing carrier ring is connected on is with eccentric input shaft to have on the eccentric wheel section, the straight pin activity on the one-level satellite gear of being plugged on is set in the roll sleeve with eccentric floating disc, first row's internally toothed annulus engagement of the external toothing of one-level satellite gear and center gear; The secondary planet wheel is connected on by bearing carrier ring to be with on the eccentric input shaft, and the straight pin activity that is plugged on the secondary planet wheel is set in the roll sleeve of output sleeve, the second series internally toothed annulus engagement of the external toothing of secondary planet wheel and center gear; Described output shaft the inner is fixed on the output sleeve, and the outer end of output shaft is fixed on the drive bevel gear of conical gear; Be with the coaxial setting of eccentric input shaft and output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200091114U CN201148158Y (en) | 2007-12-11 | 2007-12-11 | Supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200091114U CN201148158Y (en) | 2007-12-11 | 2007-12-11 | Supporting device |
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| Publication Number | Publication Date |
|---|---|
| CN201148158Y true CN201148158Y (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200091114U Expired - Lifetime CN201148158Y (en) | 2007-12-11 | 2007-12-11 | Supporting device |
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| CN (1) | CN201148158Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390366A (en) * | 2011-09-21 | 2012-03-28 | 廊坊市良华机电设备有限责任公司 | Automatic control device and control method of semitrailer outrigger |
| CN106143432A (en) * | 2015-03-16 | 2016-11-23 | 山东省梁山县赛强机械制造有限公司 | A kind of fourth gear mechanical type supporting leg |
| CN106904553A (en) * | 2013-02-19 | 2017-06-30 | 博斯制造工程服务私人有限公司 | Jack assembly |
| WO2021237939A1 (en) * | 2020-05-28 | 2021-12-02 | 广东富华重工制造有限公司 | Support leg |
-
2007
- 2007-12-11 CN CNU2007200091114U patent/CN201148158Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390366A (en) * | 2011-09-21 | 2012-03-28 | 廊坊市良华机电设备有限责任公司 | Automatic control device and control method of semitrailer outrigger |
| CN106904553A (en) * | 2013-02-19 | 2017-06-30 | 博斯制造工程服务私人有限公司 | Jack assembly |
| CN106904553B (en) * | 2013-02-19 | 2019-06-25 | 博斯制造工程服务私人有限公司 | Jack assembly |
| CN106143432A (en) * | 2015-03-16 | 2016-11-23 | 山东省梁山县赛强机械制造有限公司 | A kind of fourth gear mechanical type supporting leg |
| CN106143432B (en) * | 2015-03-16 | 2018-05-01 | 山东省梁山县赛强机械制造有限公司 | A kind of mechanical supporting leg of fourth gear |
| WO2021237939A1 (en) * | 2020-05-28 | 2021-12-02 | 广东富华重工制造有限公司 | Support leg |
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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: 20081112 Effective date of abandoning: 20071211 |