CN209041463U - A kind of gear reduction unit - Google Patents

Abstract

The utility model discloses a kind of gear reduction units, including motor, the first link block is provided on the outside of the motor, and first link block be internally provided with through-hole, the output end of the motor is rotatably connected to input shaft, and motor is provided with shell close to the side of input shaft, and the second link block corresponding with the first link block is provided on the outside of the shell, it is provided with bearing on the inside of the shell, third gear is rotatably connected on the inside of the bearing.The utility model is by being arranged first gear in the inside of third gear, and the sawtooth of third gear is located at its inner wall, second gear is provided between third gear and first gear, it is meshed on the outside of the outside of first gear and second gear, it is meshed on the inside of the outside of second gear and third gear, structure is more compact, does not influence the slowing effect of retarder, is not easy the phenomenon that being detached between first gear, second gear and third gear.

Description

A kind of gear reduction unit

Technical field

The utility model relates to retarder technical field, specially a kind of gear reduction unit.

Background technique

With the development of machinery field, generally require to slow down to some transmission devices by retarder, and gear subtracts The utilization of fast device is the most extensive, and gear reduction unit is the independent type closed driving device between prime mover and working machine, for dropping The slow-speed of revolution and increase torque, to meet need of work.

It is that the effect for reducing revolving speed is realized by way of external engagement between the different gears of existing gear reduction unit The phenomenon that fruit, structure is not compact enough, is easy to appear disengaging between different gears, thus make gear reduction unit failure frequent occurrence, And the input shaft of existing gear reduction unit and output shaft are not on the same line, thus keep the volume of gear reduction unit larger, Using more inconvenient.

Utility model content

The purpose of this utility model is to provide a kind of gear reduction units, to solve mentioned above in the background art ask Topic.

To achieve the above object, the utility model provides the following technical solutions: a kind of gear reduction unit, including motor, institute It states and is provided with the first link block on the outside of motor, and the first link block is internally provided with through-hole, the output end of the motor turns It is dynamic to be connected with input shaft, and motor is provided with shell close to the side of input shaft, is provided on the outside of the shell and connects with first Corresponding second link block of block is connect, bearing is provided on the inside of the shell, is rotatably connected to third on the inside of the bearing Gear, the inside of the third gear are rotatably connected to first gear by second gear, the first gear and input shaft Output end rotation connection, the third gear are rotatably connected to the connecting shaft for being through to shell exterior, institute far from the side of motor It states connecting shaft and is rotatably connected to output shaft far from the side of third gear.

Preferably, sealing ring is provided between the input shaft and first gear.

Preferably, the motor and shell are detachably connected by bolts and nuts.

Preferably, the number of the second gear be three groups, and three groups of second gears uniformly be distributed with first gear and Between third gear.

Preferably, the latch of the third gear is located at its inner wall, and the first gear is meshed with the second gear, described Second gear is meshed with third gear.

Preferably, the number of first link block and the second link block is four groups, and the first link block described in four groups Setting is corresponded to each other with the second link block.

Compared with prior art, the utility model has the beneficial effects that the utility model passes through in the inside of third gear First gear is set, and the sawtooth of third gear is located at its inner wall, is provided with second gear between third gear and first gear, It is meshed on the outside of the outside of first gear and second gear, is meshed on the inside of the outside of second gear and third gear, tie Structure is more compact, does not influence the slowing effect of retarder, is not easy to take off between first gear, second gear and third gear From the phenomenon that, so that gear reduction unit be made to be less likely to be damaged, output shaft drives second gear to be rotated by first gear, from And third gear can be made with first gear axis, drive output shaft to be rotated by link block, input shaft is located at output shaft Same straight line, so as to reduce the volume of gear reduction unit, use is more convenient.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the partial structural diagram of the utility model；

Fig. 3 is the structural schematic diagram of the bearing of the utility model.

In figure: 1, motor；2, the first link block；3, through-hole；4, input shaft；5, first gear；6, sealing ring；7, the second tooth Wheel；8, third gear；9, bearing；10, shell；11, the second link block；12, connecting shaft；13, output shaft；14, bolt；15, spiral shell It is female.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3, a kind of gear reduction unit, including motor 1 are please referred to, the outside of motor 1 is provided with the first link block 2, and First link block 2 is internally provided with through-hole 3, and the output end of motor 1 is rotatably connected to input shaft 4, and motor 1 is close to input shaft 4 side is provided with shell 10, and the outside of shell 10 is provided with second link block 11 corresponding with the first link block 2, shell 10 inside is provided with bearing 9, and the inside of bearing 9 is rotatably connected to third gear 8, and the inside of third gear 8 passes through the second tooth Wheel 7 is rotatably connected to first gear 5, and the output end rotation connection of first gear 5 and input shaft 4, third gear 8 is far from motor 1 Side be rotatably connected to the connecting shaft 12 being through to outside shell 10, connecting shaft 12 is rotated far from the side of third gear 8 to be connected It is connected to output shaft 13.

The utility model can be meshed by the way that the latch of third gear 8 is set to its inner wall with second gear 7, and the Two gears 7 are meshed with first gear 5, reasonable in design, and more compact, first gear 5, second gear 7 and third tooth The phenomenon that being not in derailing between wheel 8, so that retarder be made to be not easy to break down, first gear 5 is rotated, and can pass through second Gear 7 drives third gear 8 to be rotated around first gear 5, and first gear 5 is rotated coaxially with third gear 8, to make defeated Enter axis 4 and output shaft 14 is located at same straight line, can be compared with the volume of pinion gear retarder, use is more convenient.

Fig. 1 and Fig. 2 are please referred to, sealing ring 6 is provided between input shaft 4 and first gear 5, the utility model passes through defeated Enter setting sealing ring 6 between axis 4 and first gear 5, it is possible to increase the frictional force between input shaft 4 and first gear 5 prevents The phenomenon that skidding, is more advantageous to the rotation of first gear 5, to not influence the slowing effect of retarder.

Referring to Fig. 1, motor 1 is detachably connected by bolt 14 with nut 15 with shell 10, the utility model is by twisting Nut 15 out then take out bolt 14, motor 1 and shell 10 can be carried out disassembly decomposition, if the inside of gear reduction unit occurs Failure can be convenient for repairing gear reduction unit by dismantling.

Fig. 1 and Fig. 2 are please referred to, the number of second gear 7 is three groups, and the uniformly distribution and first of three groups of second gears 7 Between gear 5 and third gear 8.

The utility model between first gear 5 and third gear 8 by being uniformly arranged three groups of second gears 7, the first tooth 5 rotation of wheel can drive third gear 8 to be rotated by three groups of second gears 7, and transmission works well, and gear can be improved and subtract The slowing effect of fast device.

Fig. 1 and Fig. 2 are please referred to, the latch of third gear 8 is located at its inner wall, and first gear 5 is meshed with second gear 7, Second gear 7 is meshed with third gear 8.

The utility model can mutually be nibbled by the way that the latch of third gear 8 is set to its inner wall with the latch of second gear 7 It closes, and the latch of first gear 5 and the latch of second gear 7 are intermeshed, does not influence the slowing effect of retarder, structure design Rationally, and it is more compact, the phenomenon that being not in derailing between three groups of gears.

Referring to Fig. 1, the number of the first link block 2 and the second link block 11 is four groups, and four group of first link block 2 with Second link block 11 corresponds to each other setting.

The utility model is passed through by being correspondingly arranged four group of first link block 2 and the second link block 11, bolt 14 by through-hole 3 The first link block 2 and the second link block 11 are worn, is then matched with nut 15, motor 1 and shell 10 can be fixed, and is solid It is better to determine effect.

Working principle: powering on, and motor 1 drives first gear 5 to be rotated by input shaft 4, input shaft 4 and first The phenomenon that sealing ring 6 between gear 5 can prevent skidding, first gear 5 is meshed with second gear 7, second gear 7 with Third gear 8 is meshed, and first gear 5 rotates, and matches with second gear 7, and third tooth is driven under the action of second gear 7 Wheel 8 is rotated, and the diameter of third gear 8 is greater than the diameter of first gear 5, therefore the revolving speed of third gear 8 is less than the first tooth The revolving speed of wheel 5 has achieved the effect that slow down, and then third gear 8 drives output shaft 13 to be rotated by connecting shaft 12, if tooth The inside of wheel decelerator is broken down, and backs out nut 15, is taken out bolt 14, can be disassembled motor 1 and shell 10, is convenient for pair The maintenance of gear reduction unit next proceeds through the cooperation of bolt 14 Yu nut 15, motor 1 and shell 10 is attached solid It is fixed.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (6)

1. a kind of gear reduction unit, including motor (1), it is characterised in that: be provided with the first link block on the outside of the motor (1) (2), and the first link block (2) is internally provided with through-hole (3), and the output end of the motor (1) is rotatably connected to input shaft (4), and motor (1) is provided with shell (10) close to the side of input shaft (4), is provided on the outside of the shell (10) and first Link block (2) corresponding second link block (11) is provided with bearing (9) on the inside of the shell (10), the bearing (9) Inside is rotatably connected to third gear (8), and the inside of the third gear (8) is rotatably connected to first by second gear (7) Gear (5), the output end rotation connection of the first gear (5) and input shaft (4), the third gear (8) is far from motor (1) Side be rotatably connected to and be through to the external connecting shaft (12) of shell (10), the connecting shaft (12) is far from third gear (8) Side be rotatably connected to output shaft (13).

2. a kind of gear reduction unit according to claim 1, it is characterised in that: the input shaft (4) and first gear (5) Between be provided with sealing ring (6).

3. a kind of gear reduction unit according to claim 1, it is characterised in that: the motor (1) passes through with shell (10) Bolt (14) is detachably connected with nut (15).

4. a kind of gear reduction unit according to claim 1, it is characterised in that: the number of the second gear (7) is three Group, and three groups of second gears (7) are uniformly distributed between first gear (5) and third gear (8).

5. a kind of gear reduction unit according to claim 1, it is characterised in that: the latch of the third gear (8) is located at Its inner wall, the first gear (5) are meshed with second gear (7), and the second gear (7) is meshed with third gear (8).

6. a kind of gear reduction unit according to claim 1, it is characterised in that: first link block (2) connects with second The number for connecing block (11) is four groups, and the first link block (2) described in four groups corresponds to each other setting with the second link block (11).