CN2779158Y - 9000 series cycloidal planetary gear speed reducer - Google Patents

Abstract

The utility model relates to a 9000 series cycloidal planetary gear speed reducer. An input shaft (1) is installed in a big end cover (3) via a bearing (2), and the input shaft (1) is meshed with a needle gear sleeve (8) on a needle gear pin (7) by an eccentric sleeve (4) and a bearing (5) on the eccentric sleeve (8) through a cycloid wheel (6), which is to transmit dynamic force to an output shaft (9) to obtain decelerated motion. The utility model is characterized in that: a pin shaft sleeve (10) on the output shaft (9) is in contact with an anti-attrition ring (11) inlaid on the big end cover (3), which causes the pin shaft sleeve (10) and the big end cover (3) to be separated to decrease abrasion of a bearing friction face (12) of the big end cover (3). An optimized design of the 9000 series speed reducer, which adds an anti-attrition apparatus, decreases the abrasion, reduces temperature rise, improves precision of a product and mechanical efficiency and extends service life.

Description

9000 Series Cycloid Reducers

Technical field

The utility model discloses a kind of 9000 Series Cycloid Reducers, be specifically related to a kind of anti-attrition device.

Background technique

Existing cycloidal planetary gear speed reducer rotates when input shaft drives eccentric bushing, is meshed with pinwheel by cycloid wheel, gives output shaft by the guide on several bearing pins and the bearing pin with the transmission of movement of cycloid wheel with power.Because bearing pin is a cantilever force when transferring power, be subjected to the influence of resiliently deformable, the guide that is enclosed within on the bearing pin can slide to cantilever end vertically, makes guide and big end cap hold flour milling and contacts the generation friction, guide is a Gcr15 quenching part, big end cap is the HT200 foundry goods, produces iron filings during motion, and iron filings enter lubricant oil, the wearing and tearing of inner body have been quickened as a kind of abrasive material, the speed reducer life-span is shortened greatly, strengthened maintenance cost, cause unnecessary loss to engineering.

Summary of the invention

The purpose of this utility model provides a kind of optimal design, inlays antifriction material, reduces wear, and reduces cost, and improves 9000 Series Cycloid Reducers of bearing capacity and working efficiency, to overcome the deficiency that prior art exists.

In order to achieve the above object, the technical solution adopted in the utility model is: 9000 Series Cycloid Reducers, its input shaft by Bearing Installation in big end cap, described input shaft is realized retarded motion with transmission of power to output shaft by the engagement of the pin gear sleeve on cycloid wheel and the gear pin through the bearing on eccentric bushing and the eccentric bushing, pin sleeve on the described output shaft contacts with wearing ring on being embedded in big end cap, pin sleeve and big end cap are separated and reduces the wearing and tearing that big end cap holds flour milling.

After adopting above technological scheme, the beneficial effect that the utility model reaches is: this speed reducer has adopted the Optimum seek i ng method design, optimizes cycloidal tooth profile, on big end cap, inlay anti-attrition device, guide and big end cap are separated, avoided big end cap to hold the wearing and tearing of flour milling, stop the generation of iron filings, keep the inner chamber turbidity test, reduce temperature rise, contact tooth is many simultaneously, the transmission efficiency height, shock resistance has improved product precision and mechanical efficiency, increases the service life.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is this speed reducer anti-attrition device schematic representation.

Fig. 3 is the prior art structural representation.

Among Fig. 1,2, input shaft 1, bearing 2, big end cap 3, eccentric bushing 4, eccentric bushing bearing 5, cycloid wheel 6, gear pin 7, pin gear sleeve 8, output shaft 9, guide 10, wearing ring 11 holds flour milling 12.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is elaborated.

As shown in Figure 1, input shaft 1 is installed in the big end cap 3 by bearing 2, and input shaft 1 is given output shaft 9 by cycloid wheel 6 and pin gear sleeve 8 engagements on the gear pin 7 with transmission of power through the bearing on eccentric bushing 4 and the eccentric bushing 5, realizes retarded motion.In the prior art (as Fig. 3), the pin sleeve 10 on the output shaft 9 contact friction with the flour milling 12 that holds on the big end cap 3, and holds the flour milling wearing and tearing greatly, and iron filings are many, generation temperature rise, reduction of service life.

And this 9000 Series Cycloid Reducers have increased anti-attrition device (as Fig. 2), are being inlaid with wear-resisting wearing ring 11 on big end cap 3, and guide 10 contacts with the flour milling 12 that holds on the wearing ring, and friction ractor is little, does not produce iron filings, prolongation speed reducer working life.

Claims (1)

1, a kind of 9000 Series Cycloid Reducers, input shaft (1) is installed in the big end cap (3) by bearing (2), described input shaft (1) realizes retarded motion for output shaft (9) transmission of power through the bearing (5) on eccentric bushing (4) and the eccentric bushing by cycloid wheel (6) and pin gear sleeve (8) engagement on the gear pin (7), it is characterized in that: the pin sleeve (10) on the described output shaft (9) contacts with wearing ring (11) on being embedded in big end cap (3), pin sleeve (10) and big end cap (3) are separated and reduces the wearing and tearing that big end cap (3) holds flour milling (12).

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