CN2375820Y - Planetary gear V-belt driving dragging machine - Google Patents

Abstract

The utility model relates to a planetary gear V-type belt transmission dragging machine. The V-type belt deceleration adopted between a transmission shaft and a motor and is used as a first stage, and the planet gear deceleration is used as a second stage, and the transmission of the first stage and the transmission of the second stage are combined in one. A brake is installed on the transmission shaft, and the disengaging action and the braking action of the transmission shaft are realized according to a spline tooth of the transmission shaft and a friction disk of the brake. A planet rack and an outer shell are positioned from one end of a planet frame to be reversely installed in the utility model according to the specific direction. The utility model has the advantages that the running noise and a torsion vibrating value can be decreased, shorter and quicker braking time is realized, shorter and quicker reaction time and reaction speed are realized, the braking precision is high, the radial dimension is reduced, the safe use is realized, the transmission efficiency is high, the transmission quality is stable, and the reduction ratio range is big.

Description

The planetary pinion V-belt driving dragging machine

The utility model relates to a kind of planetary pinion V-belt driving dragging machine, is to belong to lift machine.

Existing hoist machine all is to adopt motor directly to drive transmission shaft, utilizes the second planetary reducer in the hoist machine to slow down again, and the problem that this type of hoist machine exists has:

1, since the secondary planetary gear reducer gear between the engagement progression many, between tooth and the tooth between

The crack is many, thereby running noise is big, and the torsional vibration value is big;

2, code-disc is mounted on the motor shaft that runs up, and vibration is big, poor reliability;

3, owing to there is level planetary pinion transmission at a high speed, oil temperature rise situation still exists during transmission,

Be restricted working life.

4, break is mounted on the motor output shaft, because the multi-stage planetary gear engagement, thereby

Period of braking, reaction time and speed are all slower.

The purpose of this utility model just provides a kind of running noise and reduction torsional vibration value of reducing, period of braking, reaction time and speed are shorter faster, improved the lift machine brake accuracy, longer service life, the planetary pinion V-belt driving dragging machine that axial dimension dwindles.

Solution of the present utility model is such: directly be connected with motor by V-type wedge band with a small pulley and carry out gearing down, big belt shaft then directly is connected with sun wheel shaft, carry out lower gearing down by partial planetary reduction gear, finish the output of traction moment.Be to adopt V-shape belt to be connected between transmission shaft and motor, being driven belt wheel shaft 20 is connected by key with big belt pulley 22, big belt pulley 22 is connected by V-type wedge band 21 with the output small belt pulley 3 of motor 2, to slow down with the V-type band be the first order thereby constitute, and slowing down with the planet tooth is the second level, and the structure that the two-stage transmission is united two into one, reduced the gear meshing number, be that gear backlash reduces half, thereby running noise is little, the torsional vibration value is little; Simultaneously, break is contained on the driven belt wheel shaft 20, relies on the spline tooth of self and the grinding disk 17 of break to carry out clutch, braking, take above-mentioned measure, can make period of braking, reaction time and speed shorter faster

The utility model has the advantages that and to reduce running noise and reduce the torsional vibration value, period of braking, reaction time and speed are shorter faster, help gear and under the state of low wearing and tearing, keep transmission accuracy and stable transmission quality for a long time, the brake accuracy height, axial dimension dwindles, and is safe in utilization, long service life, the transmission efficiency height, transmission quality is stable, and the reduction speed ratio scope is big.

Accompanying drawing is embodiment of the present utility model.

Accompanying drawing 1 is a structural representation of the present utility model.

The utility model has handwheel 1, motor 2, small belt pulley 3, traction sheave 4, bearing (ball) cover 5, bearing (6,7), planet wheel 8, planet carrier 9, bearing 10, solar shaft 11, shell 12, inner spline housing 13, bearing support 14, bearing 15, left arresting disc 16, grinding disk 17, Moving plate 18, disk body 19, driven belt wheel shaft 20, V-type wedge band 21, big belt pulley 22, bearing 23, end cap 24, bearing (ball) cover 25, code-disc 26 and ring gear 27.

The utility model includes support partly and the planetary pinion part, is connected by key at driven belt wheel shaft 20 and big belt pulley 22, and big belt pulley 22 is connected by V-type wedge band 21 with the output small belt pulley 3 of motor 2.The first order of hoist machine is slowed down to the V-type band slows down, and second slows down is the planet tooth deceleration of hoist machine, thereby the two-stage transmission is united two into one, and has reduced the gear meshing number, the accumulative total gap between gear engagement is dwindled, thereby running noise is little, and the torsional vibration value is little.

One end and the inner spline housing 13 of the solar shaft 11 in the hoist machine are right after, one end of big belt pulley 22 and inner spline housing 13 are connected by spline tooth, the form transmitting torque that driven belt wheel shaft 20 and inner spline housing 13, solar shaft 11 are connected with rigidity, and by the internal tooth sideshake condition that creation is floated to sun gear.The other end of solar shaft is to be fixed on the planet carrier 9 with bearing 10.Solar shaft 11 is to be meshed with planet wheel 8, constitutes the single-stage planetary reduction gears mechanism.

Planet carrier 9 external diameter left ends and bearing 7 join, the left end of planet carrier 9 and shell 12 near, thereby bearing 7 can be specific direction oppositely pack into from an end of planet carrier 9, the bearing of selecting little several levels for use for the support and the transmission of planet carrier 9 provides condition, and hoist machine can be dwindled at radial dimension.Be placed with the O RunddichtringO at the left end of planet carrier 9 and shell 12 near end face.

Break of the present utility model is to be connected with break grinding disk 17 on driven belt wheel shaft 20, constitutes break by system device grinding disk 17, Moving plate 18, left arresting disc 16 and disk body 19, that is to say that break can be arranged on the arbitrary position on the transmission shaft.In the present embodiment, it is near support inner chamber left position that break grinding disk 17 is connected with driven belt wheel shaft 20; Also can be to be connected at the middle part of driven belt wheel shaft 20; Can also be that right-hand member or the right output terminal at driven belt wheel shaft 20 is connected.

The utility model is the right-hand member that code-disc 26 (signal generator just) directly is contained in driven belt wheel shaft 20, and because of driven belt wheel shaft 20 slows down through one-level, rotating speed is low, thereby all there are raising in the operational safety of code-disc 20 and life-span.

Claims (8)

1, a kind of planetary pinion V-belt driving dragging machine, include support part and planetary pinion partly, it is characterized in that being connected by key with big belt pulley (22) at driven belt wheel shaft (20), big belt pulley (22) is connected by V-type wedge band (21) with the output small belt pulley (3) of motor (2).

2, planetary pinion V-belt driving dragging machine according to claim 1 is characterized in that an end of solar shaft (11) and inner spline housing (13) are right after, and an end of big belt pulley (22) is connected by spline tooth with inner spline housing (13).

3, planetary pinion V-belt driving dragging machine according to claim 2 is characterized in that solar shaft (11) is to be meshed with planet wheel (8), constitutes the primary planet pinion reducing gear.

4, planetary pinion V-belt driving dragging machine according to claim 3 is characterized in that joining at planet carrier (9) external diameter left end and bearing (7), the left end of planet carrier (9) and shell (12) near.

5, planetary pinion V-belt driving dragging machine according to claim 4, what it is characterized in that the left end of planet carrier (9) and shell (12) is placed with the O RunddichtringO near end face.

6, according to claim 1,2,3,4 described planetary pinion V-belt driving dragging machines, it is characterized in that on driven belt wheel shaft (20), being connected with break grinding disk (17), constitute break by break grinding disk (17), Moving plate (18), left arresting disc (16) and disk body (19).

7, planetary pinion V-belt driving dragging machine according to claim 6 is characterized in that it is at close support inner chamber left position that break grinding disk (17) is connected with driven belt wheel shaft (20); Also can be to be connected at the middle part of driven belt wheel shaft (20); Can also be that right-hand member or the right output terminal at driven belt wheel shaft (20) is connected.

8,, it is characterized in that at code-disc (26) be the right-hand member that directly is contained in driven belt wheel shaft (20) according to claim 1,2,3,4, described planetary pinion V-belt driving dragging machine.