Claims (7)
一種用於線性致動器之可調速行星式齒輪箱，其係受具有一驅動軸的一馬達帶動，該行星式齒輪箱包括:
一殻座，設有一開槽；
一第一行星齒輪組，設置在該殻座內，該第一行星齒輪組包含軸設有該驅動軸的一第一太陽齒輪、嚙合該第一太陽齒輪的複數第一行星齒輪、嚙合該些第一行星齒輪的一第一環齒輪及軸設有該些第一行星齒輪的一第一行星盤，該第一環齒輪的一側成型有複數第一卡掣部；
一第二行星齒輪組，平行該第一行星齒輪組而設置在該殻座內，該第二行星齒輪組包含固定在該第一行星盤上的一第二太陽齒輪、嚙合該第二太陽齒輪的複數第二行星齒輪、嚙合該些第二行星齒輪的一第二環齒輪及軸設有該些第二行星齒輪的一第二行星盤，該第二環齒輪對應該些第一卡掣部而設有複數第二卡掣部，且該第二行星盤具有嚙合該第一環齒輪的複數外環齒；以及
一撥動結構，包含凸露在該開槽外的一撥動鈕及一對撥動臂，該對撥動臂係受撥動而帶動該第二環齒輪移動，該第二環齒輪透過該些第二卡掣部與該些第一卡掣部相互卡掣而選擇性地扣合該第一環齒輪；其中，該第二環齒輪扣合該第一環齒輪時，該第二環齒輪係脫離該第二行星盤的嚙合。An adjustable planetary gearbox for a linear actuator driven by a motor having a drive shaft, the planetary gearbox comprising:
a shell with a slot;
a first planetary gear set disposed in the housing, the first planetary gear set including a first sun gear axially disposed with the drive shaft, a plurality of first planetary gears engaging the first sun gear, engaging the plurality of a first ring gear of the first planetary gear and a shaft are provided with a first planet disk of the first planetary gears, and a first first ring gear is formed on one side of the first ring gear;
a second planetary gear set disposed in the housing parallel to the first planetary gear set, the second planetary gear set including a second sun gear fixed to the first planetary disk, engaging the second sun gear a plurality of second planetary gears, a second ring gear meshing with the second planetary gears, and a second planet gear of the second planetary gears, the second ring gear corresponding to the first latching portion And a plurality of second latching portions, and the second planetary disk has a plurality of outer ring teeth that engage the first ring gear;
a dialing structure comprising a toggle button and a pair of toggle arms protruding outside the slot, the pair of toggle arms being driven to move the second ring gear, the second ring gear transmitting The second latching portion and the first latching portions are engaged with each other to selectively engage the first ring gear; wherein, when the second ring gear is engaged with the first ring gear, the second ring gear It is out of engagement with the second planet disk.
如請求項1所述之用於線性致動器之可調速行星式齒輪箱，其更包括平行該第二行星齒輪組而設置在該殻座內一第三行星齒輪組，該第三行星齒輪組包括結合在該第二行星盤上的一第三太陽齒輪、嚙合該第三太陽齒輪的複數第三行星齒輪及嚙合該些第三行星齒輪的一第三環齒輪。An adjustable speed planetary gearbox for a linear actuator according to claim 1, further comprising a third planetary gear set disposed in the housing parallel to the second planetary gear set, the third planet The gear set includes a third sun gear coupled to the second planet gear, a plurality of third planet gears engaging the third sun gear, and a third ring gear meshing the third planet gears.
如請求項2所述之用於線性致動器之可調速行星式齒輪箱，其中該第三太陽齒輪為一複合齒輪。The adjustable speed planetary gearbox for a linear actuator of claim 2, wherein the third sun gear is a compound gear.
如請求項2所述之用於線性致動器之可調速行星式齒輪箱，其中該第二行星盤的中心設有一軸孔，該軸孔係成型有複數結合齒輪，該第三太陽齒輪係穿置在該軸孔中並嚙合該些結合齒輪。The adjustable speed planetary gear box for a linear actuator according to claim 2, wherein a center of the second planetary disk is provided with a shaft hole, and the shaft hole is formed with a plurality of combined gears, the third sun gear The system is inserted into the shaft hole and engages the combined gears.
如請求項1所述之用於線性致動器之可調速行星式齒輪箱，其中該殻座更包括一殼蓋，該殼蓋係位在該第一環齒輪的外側並罩合該殻座。An adjustable speed planetary gearbox for a linear actuator according to claim 1, wherein the housing further comprises a cover that is seated on the outer side of the first ring gear and covers the case seat.
如請求項1所述之用於線性致動器之可調速行星式齒輪箱，其中該撥動結構更包括一撥動板，該撥動鈕係結合在該撥動板上，該對撥動臂係自該撥動板延伸而結合在該第二環齒輪上。The adjustable speed planetary gear box for a linear actuator according to claim 1, wherein the dialing structure further comprises a dialing plate, the dialing button being coupled to the dialing plate, the dialing A boom extends from the toggle plate and is coupled to the second ring gear.
如請求項6所述之用於線性致動器之可調速行星式齒輪箱，其中該對撥動臂分別具有一凸肋，該第二環齒輪的外緣面對應設有一滑槽，該對撥動臂係透過該凸肋滑設在該滑槽中而結合在該第二環齒輪上。The adjustable speed planetary gearbox for a linear actuator according to claim 6, wherein the pair of toggle arms respectively have a rib, and the outer peripheral surface of the second ring gear is correspondingly provided with a sliding slot. The dial arm is coupled to the second ring gear through the rib sliding in the sliding groove.