CN113879966A - Embedded planet speed governing crane wheel - Google Patents
Embedded planet speed governing crane wheel Download PDFInfo
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- CN113879966A CN113879966A CN202111487254.7A CN202111487254A CN113879966A CN 113879966 A CN113879966 A CN 113879966A CN 202111487254 A CN202111487254 A CN 202111487254A CN 113879966 A CN113879966 A CN 113879966A
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- Prior art keywords
- gear
- planetary gear
- planetary
- embedded
- driving
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/08—Runners; Runner bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/046—Combinations of toothed gearings only change gear transmissions in group arrangement with an additional planetary gear train, e.g. creep gear, overdrive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H2063/3076—Selector shaft assembly, e.g. supporting, assembly or manufacturing of selector or shift shafts; Special details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H2063/3093—Final output elements, i.e. the final elements to establish gear ratio, e.g. dog clutches or other means establishing coupling to shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/201—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with three sets of orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention relates to an embedded planetary speed regulation crane wheel, which comprises a wheel and a planetary gear train, wherein the planetary gear train comprises a planet carrier, a planetary gear, a gear ring, a sun gear and a transmission shaft, the wheel is coaxially connected with the output end of the planetary gear train set, and the input end of the planetary gear train set is engaged with a drive gear; the output end of the planetary gear train is connected with the input end of the adjacent planetary gear train; the driving gear is sleeved on the rotating shaft; the planet carrier is fixed, the planet gear is a double planet gear which is arranged on the planet carrier, gears of the double planet gear are respectively externally engaged with the sun gear and the internal teeth of the internal gear ring, and the two gears are externally engaged; drive gear and ring gear phase-match, the pivot passes through the slip key ring cover and selects to drive gear rotatory, and slip key ring overlaps to be established in the pivot, and slip key ring overlaps relative pivot slidable and can not rotate, and slip key ring cover is spacing in the straight flute of pivot through lug slidable, flat key embedding keyway, the smooth linking transition of keyway, guiding groove.
Description
Technical Field
The invention relates to the technical field of embedded planetary speed-regulating crane wheels, in particular to an embedded planetary speed-regulating crane wheel.
Background
At present, the traditional wheel set driving unit arrangement mode adopts a three-in-one driving device and wheels arrangement or a motor, a brake, a reducer and a wheel set form; such a structural form has been widely used in the field of lifting; the traveling of the prior wheel is mainly driven by the structure, the traveling speed of the wheel depends on the driving speed output by the driving mechanism, generally the two traveling driving speeds of positive and negative output are output, and the wheel does not have the speed regulation effect; the gearbox is large in size, if the speed adjusting mechanism is additionally arranged on the gearbox, the structure of the gearbox tends to be complex along with the increase of the number of stages of speed adjustment, and the size and the cost of the gearbox cannot meet the use requirements of the existing crane wheels
At present, in the field of wheel technical speed regulation, the principle of the wheel is that different vehicle speeds are realized by selecting different gear transmission ratios; the dimension and specification of the crane wheel are relatively fixed, the installation space is limited, and in the aspect of speed regulation of the terminal wheel, the crane wheel can realize high-speed walking and speed reduction walking aiming at the lack of an effective regulating mechanism of the final walking speed, particularly the realization of multi-stage speed regulation, and the crane wheel lacks effective technical means.
Disclosure of Invention
The invention aims to provide an embedded planetary speed regulation crane wheel, which makes up for the lack of a mechanism for regulating the speed of the crane wheel behind a speed reducer, fills a transmission structure for terminal multi-stage speed regulation of the crane wheel, and has the advantages of simple structure, compact volume, good effect and wide speed regulation range.
In order to solve the problems, the invention provides an embedded planetary speed regulation crane wheel, which comprises a wheel and a planetary gear train, wherein the planetary gear train comprises a planetary carrier, a planetary gear, a gear ring, a sun gear and a transmission shaft, the wheel is coaxially connected with the output end of a planetary gear train set, and the input end of the planetary gear train set is engaged with a drive gear;
the planetary gear train set comprises at least two planetary gear trains, and the output ends of the planetary gear trains are connected with the input ends of the adjacent planetary gear trains;
the driving gear is sleeved on the rotating shaft;
the planet carrier is fixed, the planet gear is a double planet gear, the double planet gear is arranged on the planet carrier, one gear of the double planet gear is externally engaged with the sun gear, the other gear of the double planet gear is internally engaged with the inner teeth of the gear ring, and the two gears of the double planet gear are externally engaged;
the driving gear is matched with the gear ring, namely, the external driving teeth of the driving gear are correspondingly engaged with the gear ring of the planetary gear train one by one;
the pivot drive gear rotation of a drive gear through slip key ring cover alternative, slip key ring cover establish in the pivot, slip key ring cover relative pivot slidable and can not rotate, slip key ring cover spacing in the straight flute of pivot through lug slidable, slip key ring cover pass through the keyway of flat key embedding drive gear inner wall, the both sides of keyway set up guiding groove and both smooth linking transition.
The technical scheme provided by the invention also has the following technical characteristics:
furthermore, a rotating pair and a moving pair are arranged between the toggle shaft sleeve and the rotating shaft, and the toggle shaft sleeve forms a whole rotating pair with the rotating groove through a limiting step at the terminal.
Further, the planet carrier on set up the limiting plate, the terminal embedding casing inner wall's of limiting plate spacing inslot make the planet carrier fixed.
Furthermore, the tail end of the rotating shaft is provided with a stop table, the outer surface of one side of the rotating shaft is provided with a straight groove, the outer surface of the other side of the rotating shaft is provided with a gear shifting key, and the straight groove is matched with the lug.
Furthermore, the toggle shaft sleeve comprises a limiting step and a toggle rod, the limiting step is arranged on one side of the toggle shaft sleeve, and the toggle rod vertically toggles the shaft sleeve of the shaft sleeve.
Furthermore, the input end of the rotating shaft is connected with a driving input shaft.
Furthermore, the planetary gear train set comprises a plurality of planetary gear trains in odd number, and a plurality of planetary gear trains can be additionally arranged according to requirements, so that multi-stage speed regulation and acceleration or deceleration are realized, and finally, the odd number of planetary gear trains are selected to realize bidirectional increasable and reducible symmetrical level regulation.
If two components connected by the revolute pair can perform relative rotation in a whole circle, the revolute pair is called a complete revolute pair, and the revolute pair is called a pendulum revolute pair in the opposite direction.
The invention has the following beneficial effects: the following points are provided by combining specific technical means:
1. the invention uses wheels to connect with the output end of the planetary gear train group coaxially, the input end of the planetary gear train group is engaged with the driving gear, the driving gear is sleeved on the rotating shaft, meanwhile, the planetary gear train group is formed by connecting a plurality of planetary gear trains in series, and the input end of the planetary gear train is connected with the output end of the adjacent planetary gear train; simultaneously, the gear ring of the planetary gear train set is driven by the external engagement of the driving gear, thus forming a multi-stage series planetary gear train;
by taking the invention as an example, the calculation can be known;
the number of teeth on the sun gear 48;
the number of the outer teeth and the number of the inner teeth of the gear ring are both 84;
the number of the double planet gears is 24;
the transmission ratio of a single planetary gear train is i =24/84 × 24/24 × 48/24=4:7 ≈ 0.57;
calculating i =4/7 × 4/7=16:49 ≈ 0.33 according to two planetary gear train series transmission;
calculating i =4/7 × 4/7 × 4/7 × 4/7=64:343 ≈ 0.19 according to three planetary gear train series transmission;
the number of teeth of the driving gear is 24, and the transmission ratio of the driving gear to the gear ring is 84/24=7:2= 3.5;
thereby obtaining: a single planetary gear train is adopted, and the transmission ratio from a motor to wheels is as follows: 2;
two planetary gear trains are connected in series, and the transmission ratio from a motor to wheels is as follows: 1.16;
three planetary gear trains are connected in series, and the transmission ratio from a motor to wheels is as follows: 0.665;
the comparison is carried out to know that: the transmission ratio is reduced by 43% when one planetary gear train is added;
the invention can be used for quickly adjusting the original driving speed, and the embedded compact structure can be used for quickly improving the traveling speed of the crane wheel, so that the purpose of quickly changing the traveling speed is achieved.
2. The driving gears are externally meshed with the gear rings of the planetary gear trains of the planetary gear train set in a one-to-one correspondence manner, specifically, the gear rings of the planetary gear trains of the planetary gear train set are meshed with a plurality of driving gears, and one driving gear of the shifting shaft sleeves is driven by one driving gear through the combination of the rotating shaft, the driving gears and the shifting shaft sleeves, so that the serial driving of the planetary gear trains with different quantities is realized, and the driving of the planetary gear trains in series connection with four, five or N grades can be realized according to the requirement; the rotating shaft provided by the invention drives the driving gear to rotate through the sliding key ring sleeve, the sliding key ring sleeve is sleeved on the rotating shaft and can slide and cannot rotate relative to the rotating shaft, and the sliding key ring sleeve is embedded into the key groove of the driving gear through the flat key, so that the sliding key ring sleeve is linked with the matched driving gear; the driving structure is ingenious, the size is small, the realization route is convenient and fast, and the cost is low;
the sliding key ring sleeve is limited in the straight groove of the rotating shaft in a sliding mode through the convex block, the driving gear drives the gear ring of the planetary gear train set through the outer driving teeth on the outer surface, the key groove and the guide groove are formed in the inner wall of the driving gear, the guide groove is formed in the two sides of the key groove, and the two are in smooth connection and transition, so that the problem that when the sliding key ring sleeve is embedded into the key groove of the driving gear through the flat key, the flat key collides with the outer edge of the driving gear and cannot be inserted into the key groove is avoided, the structure is simple, the cost is low, and the use is convenient.
3. The invention creates a whole rotating pair and a moving pair between the toggle shaft sleeve and the rotating shaft, and the toggle shaft sleeve is matched with a rotating groove of the sliding key ring sleeve through a limiting step at a terminal to form the whole rotating pair; therefore, the shaft sleeve can be shifted to slide along the rotating shaft, and the position of the sliding key ring sleeve is adjusted, so that the sliding key ring sleeve can be driven by different driving gears.
4. The planetary gear train comprises a planetary carrier, double planetary gears, a gear ring, a sun gear and a transmission shaft, wherein the planetary carrier is fixed, the double planetary gears are arranged on the planetary carrier, one gear of the double planetary gears is externally meshed with the sun gear, the other gear of the double planetary gears is internally meshed with the internal teeth of the gear ring, and the two gears of the double planetary gears are externally meshed, so that the change of the selection direction is not influenced in the whole transmission process, the internal meshing is positive, the external meshing is negative, and the driving direction is consistent with the output direction.
5. According to the invention, the planetary gear train set can be formed by connecting two planetary gear trains in series or connecting three planetary gear trains in series, and the planetary gear frame of the planetary gear train set is provided with the limiting plate which is embedded into the limiting groove of the shell to fix the planetary gear frame; the input end of the rotating shaft is connected with the driving input shaft, and the serial driving connection is simple and convenient.
6. The end of the rotating shaft is provided with the stop table, the outer surface of one side of the rotating shaft is provided with the straight groove, the outer surface of the other side of the rotating shaft is provided with the gear shifting key, and the straight groove is matched with the convex block, so that the rotating shaft meets the requirements of rotary driving and the requirements of a toggle shaft sleeve for selectively driving a driving gear through a sliding key ring sleeve; the poking shaft sleeve comprises a limiting step and a poking rod, the limiting step is arranged on one side of the poking shaft sleeve, and the poking rod vertically pokes the shaft sleeve of the shaft sleeve.
Drawings
Fig. 1 is a perspective view of an embedded planetary speed-regulating crane wheel according to an embodiment of the invention;
fig. 2 is a perspective view of a transmission structure of an embedded planetary speed regulation crane wheel according to the embodiment of the invention;
fig. 3 is a perspective view of a shell structure of an embedded planetary speed regulation crane wheel according to the embodiment of the invention;
fig. 4 is a perspective view of a transmission structure of an embedded planetary speed regulation crane wheel according to the embodiment of the invention;
FIG. 5 is a perspective view of a planetary gear train structure of an embedded planetary speed governing crane wheel according to the embodiment of the invention;
FIG. 6 is a perspective view of an installation structure of a rotating shaft of an embedded planetary speed-regulating crane wheel according to the embodiment of the invention;
FIG. 7 is a perspective view of a drive gear of an embedded planetary adjustable-speed crane wheel according to the embodiment of the invention;
FIG. 8 is a perspective view of a rotating shaft and a toggle shaft sleeve of an embedded planetary speed regulating crane wheel according to the embodiment of the invention;
FIG. 9 is a perspective view of a sliding key ring sleeve of an embedded planetary speed governing crane wheel according to the inventive embodiment of the present invention;
FIG. 10 is a cross-sectional view of a toggle shaft sleeve of an embedded planetary speed regulating crane wheel according to the inventive embodiment of the present invention;
FIG. 11 is a perspective view of a rotating shaft of an embedded planetary speed-regulating crane wheel according to the embodiment of the invention;
FIG. 12 is a front view of an embedded planetary governor crane wheel according to an embodiment of the present invention;
FIG. 13 is a front view of a drive gear of an embedded planetary governor crane wheel according to an embodiment of the present invention;
FIG. 14 is a left side view of a drive gear of an embedded planetary governor crane wheel according to an embodiment of the present invention;
FIG. 15 is a half sectional view of a drive gear of an embedded planetary governor crane wheel according to an embodiment of the present invention;
fig. 16 is a perspective cross-sectional view of a drive gear of an embedded planetary governor crane wheel according to an embodiment of the present invention;
in the figure: 1. the gear shifting mechanism comprises a shell 2, a drive input shaft 3, a toggle shaft sleeve 4, a drive gear 5, a planetary gear train set 6, a rotating shaft 7, a sliding key ring sleeve 11, a wheel 12, a limiting groove 31, a connecting ring 32, a toggle rod 33, a limiting step 41, an external drive tooth 42, a key groove 43, a guide groove 51, a planet carrier 52, double planet wheels 53, a gear ring 54, a sun wheel 55, a transmission shaft 56, a limiting plate 61, a stop table 62, a straight groove 63, a gear shifting key 71, a flat key 72, a lug 73 and a rotating groove.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
An embedded planetary adjustable-speed crane wheel as shown in fig. 1-16 comprises a wheel 11 and a planetary gear train, wherein the planetary gear train comprises a planetary carrier 51, a planetary gear, a gear ring 53, a sun gear 54 and a transmission shaft 55, the wheel 11 is coaxially connected with an output end of a planetary gear train set 5, and an input end of the planetary gear train set 5 is engaged with a drive gear 4;
the planetary gear train set 5 comprises at least two planetary gear trains, and the output ends of the planetary gear trains are connected with the input ends of the adjacent planetary gear trains;
the driving gear 4 is sleeved on the rotating shaft 6;
the planet carrier 51 is fixed, the planet gear is a double planet gear 52, the double planet gear 52 is arranged on the planet carrier 51, one gear of the double planet gear 52 is externally meshed with a sun gear 54, the other gear of the double planet gear 52 is internally meshed with the internal tooth of an annular gear 53, and two gears of the double planet gear 52 are externally meshed; therefore, the change of the selection direction is not prevented in the whole transmission process, the internal engagement is positive, the external engagement is negative, and the driving direction is consistent with the output direction;
the driving gear 4 is matched with the gear ring 53, namely, the external driving teeth 41 of the driving gear 4 are correspondingly engaged with the gear ring 53 of the planetary gear train one by one;
the rotating shaft 6 drives the driving gear 4 to rotate by selecting one sliding key ring sleeve 7, the sliding key ring sleeve 7 is sleeved on the rotating shaft 6, the sliding key ring sleeve 7 can slide and can not rotate relative to the rotating shaft 6, the sliding key ring sleeve 7 can be limited in the straight groove 62 of the rotating shaft 6 in a sliding way through the convex block 72, the sliding key ring sleeve 7 is embedded into the key groove 42 on the inner wall of the driving gear 4 through the flat key 71, the two sides of the key groove 42 are provided with the guide grooves 43, and the two are in smooth connection and transition; this structure has avoided sliding key ring cover 7 to pass through when flat key 71 imbeds the keyway 42 of drive gear 4, flat key 71 hits the outward flange of drive gear 4 and can't insert keyway 42, simple structure, and is with low costs, convenient to use.
In the implementation of the application, the driving gears 4 are externally engaged with the gear rings 53 of the planetary gear trains of the planetary gear train set 5 in a one-to-one correspondence manner, the rotating shaft 6 drives the driving gears 4 to rotate through the sliding key ring sleeve 7, and one driving gear 4 of the shifting shaft sleeves 3 is driven through the combination of the rotating shaft 6, the driving gear 4 and the shifting shaft sleeve 3, so that the serial driving of the planetary gear trains with different numbers is realized, and the driving of the planetary gear trains in series with four, five or N levels can be realized according to requirements;
the sliding key ring sleeve 7 is sleeved on the rotating shaft 6, the sliding key ring sleeve 7 can slide relative to the rotating shaft 6 and can not rotate, and the sliding key ring sleeve 7 is embedded into the key groove 42 of the driving gear 4 through a flat key 71; the sliding key ring sleeve 7 is linked with the matched driving gear 4; the driving structure is ingenious, small in size, convenient and fast in route realization and low in cost.
When the invention is implemented, the implementation key points are as follows:
1. the invention uses the wheel 11 to connect the output end of the planetary gear train set 5 coaxially, and the input end of the planetary gear train set 5 engages with the driving gear 4, the driving gear 4 is sleeved on the rotating shaft 6, and the planetary gear train set 5 is formed by connecting a plurality of planetary gear trains in series, and connects the input end of the planetary gear train with the output end of the adjacent planetary gear train; meanwhile, the driving gear 4 is externally engaged with and drives the gear ring 53 of the planetary gear train set 5, so that a multi-stage series planetary gear train is formed;
wherein the number of teeth 48 of the sun gear 54
The number of teeth outside and the number of teeth inside the ring gear 53 are all 84
The number of teeth of each gear of the double planetary gear 52 is 24
The transmission ratio of a single planetary gear train is i =24/84 × 24/24 × 48/24=4:7 ≈ 0.57;
calculating i =4/7 × 4/7=16:49 ≈ 0.33 according to two planetary gear train series transmission;
calculating i =4/7 × 4/7 × 4/7 × 4/7=64:343 ≈ 0.19 according to three planetary gear train series transmission;
the number of teeth of the driving gear 4 is 24, and the transmission ratio of the driving gear 4 to the gear ring 53 is 84/24=7:2= 3.5;
thereby obtaining: a single planetary gear train is adopted, and the transmission ratio from a motor to wheels is as follows: 2;
two planetary gear trains are connected in series, and the transmission ratio from a motor to wheels is as follows: 1.16;
three planetary gear trains are connected in series, and the transmission ratio from a motor to wheels is as follows: 0.665;
the comparison is carried out to know that: the transmission ratio changes as follows for each additional planetary gear train:
| type (B) | Transmission ratio | Adjacent comparison |
| Single |
2 | |
| Two planetary gear trains are connected in series | 1.16 | 43% |
| Three planetary gear trains are connected in series | 0.65 | 44% |
| Four planetary gear trains are connected in series | 0.37 | 43% |
| Five planetary gear trains are connected in series | 0.21 | 43% |
| .... | ...... | ...... |
| N planetary gear trains are connected in series | 3.5*（4/7）N |
Take 8 serial as an example; the transmission ratio was 0.04.
The comparison is carried out to know that: the transmission ratio is reduced by 43% when one planetary gear train is added; the speed can be adjusted according to the application by the preset initial target transmission ratio, for example, three planetary gear trains are taken as an example, the initial transmission ratio is selected to be driven by the intermediate wheel, so that the transmission ratio is 1.16, according to alternative drive, the transmission ratio is increased and then converted into a single planetary gear train with the transmission ratio of 2, the transmission ratio is adjusted towards the other direction, the three planetary gear trains are used for transmission, the transmission ratio is 0.65, the continuous speed regulation and the fast and slow speed regulation are realized according to 43 percent of increasing or decreasing variable, and has simple structure and compact volume, so a plurality of planetary gear trains can be additionally arranged according to the requirement, thereby realizing multi-stage speed regulation and acceleration or deceleration, and finally, odd number of planetary gear trains are selected to realize bidirectional increasable and reducible adjustment of symmetry level, taking numbers 3, 5 and 7 as examples, speed regulation modes of plus-minus first gear, plus-minus second gear and plus-minus third gear can be respectively realized.
The invention can be used for quickly adjusting the original driving speed, and the embedded compact structure can be used for quickly improving the traveling speed of the crane wheel, so that the purpose of quickly changing the traveling speed is achieved.
In an embodiment of the present application, a rotation pair and a sliding pair are provided between the toggle shaft sleeve 3 and the rotating shaft 6, the toggle shaft sleeve 3 forms a complete rotation pair through the limiting step 33 at the terminal and the rotating groove 73, when the toggle shaft sleeve 3 can slide along the rotating shaft 6, and the position of the sliding key ring sleeve 7 is adjusted, so that the sliding key ring sleeve 7 can select different driving gears 4 to drive.
In an embodiment of the present application, the planet carrier 51 is provided with the limiting plate 56, the end of the limiting plate 56 is embedded into the limiting groove 12 on the inner wall of the housing 1 to fix the planet carrier 51, so that the planet carrier 51 is fixed, the change of the selection direction is not prevented in the whole transmission process, the internal engagement is positive, the external engagement is negative, and the driving direction is consistent with the output direction.
In an embodiment of the present application, the end of the rotating shaft 6 is provided with a stop table 61, the outer surface of one side of the rotating shaft 6 is provided with a straight groove 62, the outer surface of the other side of the rotating shaft 6 is provided with a shift key 63, the straight groove 62 is matched with a projection 72, so that the rotating shaft 6 meets the requirements of rotary driving and the requirement that the toggle shaft sleeve 3 selectively drives the driving gear 4 through the sliding key ring sleeve 7.
In an embodiment of the present application, the toggle shaft sleeve 3 includes a limit step 33 and a toggle lever 32, the limit step 33 is disposed at one side of the toggle shaft sleeve 3, the toggle lever 32 vertically toggles the shaft sleeve of the shaft sleeve 3, and a mechanical toggle lever structure is adopted to facilitate adjusting the rotating shaft 6 to enable a drive gear 4 to rotate.
In an embodiment of the application, the input end of the rotating shaft 6 is connected with the driving input shaft 2, and the structure has the advantages of compact volume, ingenious conception, low cost and good effect.
In an embodiment of the present application, the planetary gear train set 5 includes an odd number of planetary gear trains, and a plurality of planetary gear trains are added as needed, so as to implement multi-stage speed regulation and acceleration or deceleration, and finally, the odd number of planetary gear trains are selected to implement bidirectional adjustable and reducible adjustment of symmetry level.
In one embodiment of the present application, one side of the ring gear 53 of the planetary gear train is provided with the ring gear 53, the other side of the sun gear 54 of the planetary gear train is provided with the transmission shafts 55, the transmission shafts 55 of the planetary gear train are fixedly connected with the ring gear 53 of the next group of planetary gear trains, and the wheels 11 are fixedly connected with the transmission shafts 55 of the last group of planetary gear trains of the planetary gear train group 5; the double planet gears 52 are rotatably arranged on the planet carrier 51, and two limit plates 56 of the planet carrier 51 are arranged in the limit grooves 12 of the shell 1;
the driving gears 4 are rotatably arranged in the shell 1, the three driving gears 4 are arranged side by side and do not influence each other, and the three driving gears 4 are rotatably arranged on the rotating shaft 6; the driving gear 4 is provided with external driving teeth 41, and the external driving teeth 41 are respectively engaged with the gear rings 53 of the planetary gear train sets 5 at corresponding positions; a key groove 42 is formed in the driving gear 4, guide grooves 43 are symmetrically formed in two sides of the key groove 42, the guide grooves 43 are communicated with the key groove 42, and a plurality of guide grooves 43 and a plurality of key grooves 42 are uniformly distributed along the circumferential direction of the driving gear 4;
the rotating shaft 6 is also sleeved with a sliding key ring sleeve 7 and a toggle shaft sleeve 3, a plurality of flat keys 71 are uniformly distributed on the outer side of the sliding key ring sleeve 7, and the flat keys 71 can be meshed with key grooves 42 formed in the inner side of the driving gear 4; a plurality of straight grooves 62 are uniformly distributed on the rotating shaft 6 along the circumferential direction, a plurality of protrusions 72 are correspondingly arranged in the sliding key ring sleeve 7, and the protrusions 72 are slidably arranged in the straight grooves 62, namely the sliding key ring sleeve 7 rotates along with the rotating shaft 6; a rotating groove 73 is formed in one end face of the sliding key ring sleeve 7, a connecting ring 31 is arranged on one end face of the toggle shaft sleeve 3, and the connecting ring 31 is rotatably arranged in the rotating groove 73, namely, the sliding key ring sleeve 7 can rotate along with the rotating shaft 6 and can axially move along with the toggle shaft sleeve 3; the rotating shaft 6 is further provided with an installation groove, the installation groove is internally provided with a plurality of gear shifting keys 63 through springs, the gear shifting keys 63 are uniformly distributed along the circumferential direction of the rotating shaft 6, the gear shifting keys 63 are regarded as a group in the same vertical direction, the gear shifting keys 63 are provided with a plurality of groups of gear shifting keys at intervals along the axial direction of the rotating shaft 6, the number of the gear shifting keys corresponds to that of the planetary gear train groups 5, the other end inside the shifting shaft sleeve 3 is correspondingly provided with a limiting step 33, and the gear shifting keys 63 can slide in the limiting step 33;
when the shift lever 32 is pushed, namely the shift sleeve 3 is pushed to move, the flat key 71 on the sliding key ring sleeve 7 is meshed with the key groove 42 in the middle driving gear 4, at this time, the middle shift key 63 set is positioned in the limit step 33 in the shift sleeve 3, the rotating shaft 6 rotates, the middle driving gear 4 is driven to rotate through the sliding key ring sleeve 7, the driving gear 4 drives the middle planetary gear set 5 to rotate, the planetary gear set 5 drives the gear ring 53 of the next planetary gear set 5 to rotate through the transmission shaft 55 on the sun gear 54, and the transmission shaft 55 on the sun gear 54 of the next planetary gear set 5 drives the wheel 11 to rotate;
when the reduction ratio needs to be adjusted, the shift lever 32, namely the shift shaft sleeve 3, is moved, the position of the sliding key ring sleeve 7 is pushed to change through the shift shaft sleeve 3, and the flat key 71 on the sliding key ring sleeve 7 is meshed with the key groove 42 in the other driving gear 4; when the sliding key ring sleeve 7 is moved leftwards to abut against the stop table 61, the flat key 71 of the sliding key ring sleeve 7 is meshed with the key groove 42 in the leftmost driving gear 4, and meanwhile, the leftmost gear shifting key 63 group is positioned in the limiting step 33 in the toggle shaft sleeve 3; when the shift sleeve 3 is moved rightwards to abut against the drive input shaft 2, the flat key 71 of the sliding key ring sleeve 7 is meshed with the key groove 42 in the rightmost drive gear 4, and meanwhile, the rightmost gear shifting key 63 group is positioned in the limiting step 33 in the shift sleeve 3; during adjustment, two ends of the key groove 42 in the driving gear 4 are connected with the guide grooves 43, and a plurality of groups of the guide grooves 43 and the key grooves 42 are uniformly distributed in the circumferential direction, so that the situation that the flat key 71 is clamped when the sliding key ring sleeve 7 moves is avoided.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the present invention.
Claims (7)
1. The utility model provides an embedded planet speed governing hoist wheel, includes wheel (11), planetary gear train include planet carrier (51), planetary gear, ring gear (53), sun gear (54), transmission shaft (55), its characterized in that: the wheels (11) are coaxially connected with the output end of the planetary gear train set (5), and the input end of the planetary gear train set (5) is meshed with the driving gear (4);
the planetary gear train set (5) comprises at least two planetary gear trains, and the output ends of the planetary gear trains are connected with the input ends of the adjacent planetary gear trains;
the driving gear (4) is sleeved on the rotating shaft (6);
the planet carrier (51) is fixed, the planetary gear is a double planetary gear (52), the double planetary gear (52) is arranged on the planet carrier (51), one gear of the double planetary gear (52) is externally meshed with a sun gear (54), the other gear of the double planetary gear (52) is internally meshed with the internal teeth of a ring gear (53), and two gears of the double planetary gear (52) are externally meshed;
the driving gear (4) is matched with the gear ring (53), namely, the external driving teeth (41) of the driving gear (4) are correspondingly engaged with the gear ring (53) of the planetary gear train one by one;
pivot (6) drive gear (4) rotation through sliding key ring cover (7) one selection, sliding key ring cover (7) cover establish on pivot (6), sliding key ring cover (7) relative pivot (6) slidable and can not rotate, sliding key ring cover (7) spacing in straight flute (62) of pivot (6) through lug (72) slidable, sliding key ring cover (7) keyway (42) through flat key (71) embedding drive gear (4) inner wall, the both sides of keyway (42) set up guiding groove (43) and both smooth linking transition.
2. The embedded planetary adjustable-speed crane wheel according to claim 1, characterized in that: a rotating pair and a moving pair are arranged between the toggle shaft sleeve (3) and the rotating shaft (6), and the toggle shaft sleeve (3) forms a whole rotating pair through a limiting step (33) at a terminal and a rotating groove (73).
3. The embedded planetary adjustable-speed crane wheel according to claim 1, characterized in that: the planet carrier (51) is provided with a limiting plate (56), and the tail end of the limiting plate (56) is embedded into a limiting groove (12) on the inner wall of the shell (1) to fix the planet carrier (51).
4. The embedded planetary adjustable-speed crane wheel according to claim 1, characterized in that: the end of the rotating shaft (6) is provided with a stop table (61), the outer surface of one side of the rotating shaft (6) is provided with a straight groove (62), the outer surface of the other side of the rotating shaft (6) is provided with a gear shifting key (63), and the straight groove (62) is matched with the convex block (72).
5. The embedded planetary adjustable-speed crane wheel according to claim 4, characterized in that: the toggle shaft sleeve (3) comprises a limiting step (33) and a toggle rod (32), the limiting step (33) is arranged on one side of the toggle shaft sleeve (3), and the toggle rod (32) vertically toggles the shaft sleeve of the toggle shaft sleeve (3).
6. The embedded planetary adjustable-speed crane wheel according to claim 1, characterized in that: the input end of the rotating shaft (6) is connected with the driving input shaft (2).
7. The embedded planetary adjustable-speed crane wheel according to claim 1, characterized in that: the planetary gear train set (5) comprises an odd number of planetary gear trains.
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| CN202111487254.7A CN113879966B (en) | 2021-12-08 | 2021-12-08 | Embedded planet speed governing crane wheel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111487254.7A CN113879966B (en) | 2021-12-08 | 2021-12-08 | Embedded planet speed governing crane wheel |
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| CN113879966B CN113879966B (en) | 2022-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116553375A (en) * | 2023-07-07 | 2023-08-08 | 河南东起机械有限公司 | Compact crane driving assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116553375A (en) * | 2023-07-07 | 2023-08-08 | 河南东起机械有限公司 | Compact crane driving assembly |
| CN116553375B (en) * | 2023-07-07 | 2023-09-26 | 河南东起机械有限公司 | Compact crane driving assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113879966B (en) | 2022-03-08 |
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