CN211059315U

CN211059315U - RV type speed reducer

Info

Publication number: CN211059315U
Application number: CN201922051676.4U
Authority: CN
Inventors: 朱京; 朱志德; 朱月鹏
Original assignee: Zhenjiang Pengyu Machinery Manufacturing Co ltd
Current assignee: Zhenjiang Pengyu Machinery Manufacturing Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-21
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a RV type speed reducer, including the shell, the RV gear is installed to the inner chamber of shell, and the inner chamber of RV gear is connected with bearing, and bearing's inner chamber is connected with the eccentric shaft, and the crank axle is connected in the left side of eccentric shaft, and the drive shaft is connected on the right side of eccentric shaft, and the right side rigid coupling of drive shaft has the driving-disc, and the spur gear is installed to the driving-disc, and the reducing gear has been cup jointed in the outside of crank axle, and the inner chamber of shell is equipped. The utility model provides a but present speed reducer, the speed reduction effect is not good enough, and is bulky, and inertia is big for the not good problem of effect of speed reduction.

Description

RV type speed reducer

Technical Field

The utility model relates to an injection mold technical field specifically is a RV type speed reducer.

Background

The reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The motor has the functions of matching rotating speed and transmitting torque between a prime motor and a working machine or an actuating mechanism, and is widely applied to modern machinery, but the conventional speed reducer has poor speed reducing effect, large volume and large inertia, so that the speed reducing effect is poor, and therefore, the RV type speed reducer is designed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a RV type speed reducer has solved but present speed reducer, and the speed reduction effect is not enough good, and is bulky, and inertia is big for the not good problem of effect of speed reduction.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a RV type speed reducer, includes the shell, the RV gear is installed to the inner chamber of shell, the inner chamber of RV gear is connected with needle bearing, needle bearing's inner chamber is connected with the eccentric shaft, the crank axle is connected in the left side of eccentric shaft, the drive shaft is connected on the right side of eccentric shaft, the right side rigid coupling of drive shaft has the driving-disc, the spur gear is installed to the driving-disc, the gear reducer has been cup jointed in the outside of crank axle, the inner chamber of shell is equipped with the tooth's socket, be connected with the.

The utility model provides an RV type speed reducer, the transmission shaft all is provided with threely with the deceleration wheel, and the equal equilateral triangle of three transmission shaft and three deceleration wheel sets up, and three transmission shaft and the crisscross setting of three deceleration wheel, has increased the joint strength of deceleration wheel and transmission shaft through the equal equilateral triangle setting of three transmission shaft and three deceleration wheel.

In the RV reducer, the plurality of pin tooth grooves are arranged in a circumferential array.

In the RV type reducer, the number of teeth of the rack gear is one more than that of the RV gear, so that the crankshaft rotates once, the RV gear makes one eccentric motion while contacting the rack gear, and as a result, the RV gear rotates one gear distance in a direction opposite to the rotation direction of the crankshaft.

In the RV reducer, the RV gears are provided in two and the two RV gears are arranged in parallel, so that the crankshaft rotates on the eccentric shaft, and the rotation speed of the crankshaft can be limited according to the number of the needle tooth grooves.

In the RV reducer, the crankshaft rotates once, and the RV gear makes an eccentric motion while contacting the pin gear groove.

The utility model has the advantages that: the reducer for high-precision control adopts a speed reduction structure of a cycloid needle wheel, has the characteristics of high rigidity and overload resistance due to the fact that the reducer is simultaneously meshed with a large number of gears, has the characteristics of small size and light weight, has good acceleration performance due to tooth clearance, rotary vibration and inertia, and can realize stable operation and obtain the precision of a correct position, the problem of but present speed reducer, the speed reduction effect is not good enough, and is bulky, and inertia is big for the effect of speed reduction is not good is solved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the internal structure of the present invention.

In the figure: 1. the device comprises a shell, 2, a speed reducing wheel, 3, a crank shaft, 4, a transmission shaft, 5, a needle tooth groove, 6, an RV gear, 7, a needle roller bearing, 9, an eccentric shaft, 10, a driving shaft, 11, a driving disc, 13 and a straight gear.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to FIGS. 1-2: an RV type speed reducer comprises a shell 1, an RV gear 6 is installed in an inner cavity of the shell 1, two RV gears 6 are arranged, the two RV gears 6 are arranged in parallel, the inner cavity of the RV gear 6 is connected with a needle bearing 7, the inner cavity of the needle bearing 7 is connected with an eccentric shaft 9, the left side of the eccentric shaft 9 is connected with a crank shaft 3, the right side of the eccentric shaft 9 is connected with a driving shaft 10, the right side of the driving shaft 10 is fixedly connected with a driving disc 11, the driving disc 11 is provided with a straight gear 13, a reducing gear 2 is sleeved on the outer side of the crank shaft 3, an inner cavity of the shell 1 is provided with a plurality of needle tooth grooves 5, the plurality of needle tooth grooves 5 are arranged in a circumferential array mode, the number of the needle tooth grooves 5 is one more than that of the RV gear 6, the crank shaft 3 rotates once, the RV gear 6 makes eccentric motion while being contacted with, and three transmission shafts 4 and three equal regular triangle-shaped of deceleration wheel 2 set up, and three transmission shafts 4 and three crisscross setting of deceleration wheel 2.

To sum up, the utility model discloses when using, in the eccentric shaft 9 of

crankshaft

3, 2 RV gears 6 have been installed through bearing 7, along with the rotation of

crankshaft

3, 2 RV gears 6 of installation also follow eccentric motion in the eccentric shaft 9, crankshaft 3 rotates once, RV gear 6 makes eccentric motion with the contact of gullet 5 simultaneously, and on this result, RV gear 6 rotates a gear distance along the opposite direction of rotation with crankshaft 3, produce two-stage reduction, total reduction ratio is the product of the reduction ratio of 1 st reduction and the reduction ratio of 2 nd reduction, the efficiency of cycloid speed reduction has been increased, the high-precision control speed reducer of the speed reduction structure of having adopted the pin wheel, because this speed reducer meshes the gear number more simultaneously, so possess small-size, light weight characteristics, also have high rigidity, the characteristics of overload resistant, because the backlash, The rotating vibration and inertia are small, so that the speed reducer has good acceleration performance, can realize stable operation and obtain the accuracy of a correct position, and solves the problems that the speed reducer at present has poor speed reduction effect, large volume and large inertia, and the speed reduction effect is poor.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a RV type speed reducer, includes shell (1), its characterized in that: RV gear (6) is installed to the inner chamber of shell (1), the inner chamber of RV gear (6) is connected with bearing (7), the inner chamber of bearing (7) is connected with eccentric shaft (9), crank axle (3) is connected in the left side of eccentric shaft (9), drive shaft (10) is connected on the right side of eccentric shaft (9), the right side rigid coupling of drive shaft (10) has driving-disc (11), spur gear (13) are installed in driving-disc (11), reducing gear (2) have been cup jointed in the outside of crank axle (3), the inner chamber of shell (1) is equipped with tooth's socket (5), be connected with transmission shaft (4) on RV gear (6).

2. An RV type reducer according to claim 1, characterized in that: the transmission shaft (4) and the deceleration wheel (2) are three, the three transmission shafts (4) and the three deceleration wheels (2) are arranged in a regular triangle, and the three transmission shafts (4) and the three deceleration wheels (2) are arranged in a staggered mode.

3. An RV type reducer according to claim 1, characterized in that: the needle tooth grooves (5) are arranged in a plurality of forms, and the needle tooth grooves (5) are arranged in a circumferential array.

4. An RV type reducer according to claim 1, characterized in that: the tooth number of the needle tooth groove (5) is one more than that of the RV gear (6).

5. An RV type reducer according to claim 1, characterized in that: the RV gears (6) are arranged in two, and the two RV gears (6) are arranged in parallel.

6. An RV type reducer according to claim 1, characterized in that: the crankshaft (3) rotates once, and the RV gear (6) makes an eccentric motion while being in contact with the needle tooth groove (5).