CN210510157U

CN210510157U - Rotary speed reducer

Info

Publication number: CN210510157U
Application number: CN201921339836.9U
Authority: CN
Inventors: 华伟; 陈黔宁; 陈凯
Original assignee: Jiangyin Sunslew Machinery Equipment Co ltd
Current assignee: Jiangyin Sunslew Machinery Equipment Co ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-05-12
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a rotary speed reducer, which comprises a base, be equipped with the worm in the base and with the gear of worm meshing be equipped with the integral key shaft in the gear, still be equipped with second oilless bearing, first oilless bearing and third skeleton oil blanket between integral key shaft and the gear, first oilless bearing sets up between second oilless bearing and third skeleton oil blanket, the left side of integral key shaft is equipped with dish type gasket, lock nut and stay in proper order, the dish type gasket sets up between integral key shaft and lock nut, the stay passes through hexagon socket head cap screw and is connected with lock nut, the right side of integral key shaft still is equipped with the plastic bearing piece. The utility model discloses a lock nut applys the damping to butterfly type gasket, makes the integral key shaft motionless, and the gear worm normally rotates, avoids the gear face to damage or even the central gear fracture, has increased the life of speed reducer, makes the photovoltaic support can continuously track the light source, has improved photovoltaic power generation's work efficiency.

Description

Rotary speed reducer

Technical Field

The utility model relates to a speed reducer technical field specifically is a slewing reducer.

Background

The speed reducer, which is a relatively precise machine used for the purpose of reducing the rotational speed and increasing the torque, plays a role of matching the rotational speed and transmitting the torque between the prime mover and the working machine or the actuator. 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 rotary speed reducer is a full-circle rotary speed reducing transmission mechanism integrated with a driving power source, a rotary support is used as a transmission driven part and a mechanism attachment part, one of an inner ring and an outer ring of the rotary support is attached with a driving part, a driving source and a housing, and the other ring is used as a transmission driven part and a connection base of a driven working part, so that the universal speed reducing transmission mechanism integrates the functions of rotation, speed reduction and driving, has a simple structure and is convenient to manufacture and maintain. The slewing reducer is widely applied to photovoltaic support tracking, and can enable the solar cell panel to rotate along with the sun.

When present current slewing reducer is applied to photovoltaic support and trails, need overcome the windage under the special environment and photovoltaic support and photovoltaic cell's resistance such as dead weight, when the resistance is too big, can cause the gear face to damage or even central gear fracture for slewing reducer damages. Therefore, the photovoltaic support cannot track the light source, the efficiency of photovoltaic power generation is reduced, and meanwhile, the maintenance cost is also increased. Therefore, there is a high necessity for a reduction gear box capable of overcoming the problem that the reduction gear box is not damaged when the resistance is too large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can overcome the rotary reducer that can not cause the damage when the resistance is too big.

The utility model provides a rotary speed reducer, includes the base, be equipped with the worm in the base and with the gear of worm meshing, the worm drives the gear rotation, be equipped with the integral key shaft in the gear, still be equipped with second oilless bearing, first oilless bearing and third skeleton oil blanket between integral key shaft and the gear, first oilless bearing sets up between second oilless bearing and third skeleton oil blanket, the left side of integral key shaft is equipped with dish type gasket, lock nut and stay in proper order, the dish type gasket sets up between integral key shaft and lock nut.

An oil-free bearing gasket is arranged between spline outer teeth at the left end of a spline shaft and a gear, so that tight attachment is guaranteed.

The utility model provides a revolving speed reducer, the stay is connected with locknut through hexagon socket head cap screw, the right side of integral key shaft still is equipped with the plastics bearing piece.

A sealing cover is further arranged between the spline shaft and the disc-shaped gasket.

The utility model provides a slewing reducer, the gear left side is overlapped in proper order and is equipped with first deep groove ball bearing, circlip and first skeleton oil blanket for the first hole, and the gear right side is overlapped in proper order and is equipped with second deep groove ball bearing, circlip and second skeleton oil blanket for the second hole.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model is provided with a plastic bearing sheet at one end of the internal spline shaft, and a butterfly gasket at the other end, and applies damping to the butterfly gasket through the locking nut, under the normal condition, the worm drives the gear to rotate, and the spline shaft also rotates along with the gear; when the resistance borne by the spline shaft is too large, the spline shaft is not moved, the gear worm rotates normally, the gear surface is prevented from being damaged, even the central gear is prevented from being broken, the speed reducer is protected from being damaged, the service life of the speed reducer is prolonged, the maintenance cost is reduced, the photovoltaic support can continuously track the light source, and the working efficiency of photovoltaic power generation is improved.

Drawings

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

fig. 2 is a schematic partial cross-sectional view of the present invention;

fig. 3 is a schematic cross-sectional view of the present invention;

wherein:

the oil-free bearing comprises a base 1, a worm 2, an O-shaped ring 3, a first framework oil seal 4, a first hole circlip 5, a second hole circlip 51, a first deep groove ball bearing 6, a second deep groove ball bearing 7, a second framework oil seal 8, a gear 9, a third framework oil seal 10, a spline shaft 11, a plastic bearing sheet 12, a first oil-free bearing 13, an inner hexagonal oil plug 14, a second oil-free bearing 15, an oil-free bearing gasket 16, a sealing cover 17, a disc-shaped gasket 18, an inner hexagonal cylindrical head screw 19, an end cover 20, a locking sheet 21 and a locknut 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, a slewing reducer comprises a base 1, a worm 2 and a gear 9 engaged with the worm 2 are arranged in the base 1, the worm 2 drives the gear 9 to rotate, a first deep groove ball bearing 6, a first hole circlip 5 and a first skeleton oil seal 4 are sequentially sleeved on the left side of the gear 9, a second deep groove ball bearing 7, a second hole circlip 23 and a second skeleton oil seal 8 are sequentially sleeved on the right side of the gear 9, a spline shaft 11 is arranged in the gear 9, an oil-free bearing gasket 16 is arranged between the spline outer teeth at the left end of the spline shaft 11 and the gear 9 to ensure tight fit, a second oil-free bearing 15, a first oil-free bearing 13 and a third skeleton oil seal 10 are further arranged between the spline shaft 11 and the gear 9, the first oil-free bearing 13 is arranged between the second oil-free bearing 15 and the third skeleton oil seal 10, when the resistance borne by the spline shaft 11 is not large, the spline shaft 11 can rotate along with the gear 9, when the resistance of the spline shaft 11 is too large, the friction resistance provided by the first oilless bearing 13 and the second oilless bearing 15 can prevent the gear 9 from driving the spline shaft 11 to rotate, thereby protecting the speed reducer from being damaged, the left end of the spline shaft 11 is provided with a disc-shaped gasket 18, a locknut 22 and a locking sheet 21 in sequence, the disc-shaped gasket 18 is arranged between the spline shaft 11 and the locknut 22, the locking sheet 21 is connected with the locknut through the hexagon socket head cap screw 19, the locknut 22 and the locking sheet 21 play a role in damping the spline shaft 11, a sealing cover 17 is arranged between the spline shaft 11 and the disc-shaped gasket 18, a plastic bearing sheet 12 is arranged at the right end of the spline shaft 11, an end cover 20 is arranged at the front end of the gear 9, an O-shaped ring 3 is arranged between the end cover 20 and the gear 9, and an inner hexagonal oil plug 14 is further arranged at the bottom of the base 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a slewing reducer, includes base (1), be equipped with worm (2) in base (1) and with gear (9) of worm (2) meshing, its characterized in that: be equipped with integral key shaft (11) in gear (9), still be equipped with second oilless bearing (15), first oilless bearing (13) and third skeleton oil blanket (10) between gear (9) and integral key shaft (11), first oilless bearing (13) set up between second oilless bearing (15) and third skeleton oil blanket (10), the left side of integral key shaft (11) is equipped with dish type gasket (18), lock nut (22) and stay (21) in proper order, dish type gasket (18) set up between integral key shaft (11) and lock nut (22).

2. A rotary reduction gear according to claim 1, wherein: an oilless bearing gasket (16) is arranged between the external spline teeth at the left end of the spline shaft (11) and the gear (9).

3. A rotary reduction gear according to claim 1, wherein: and a plastic bearing sheet (12) is also arranged on the right side of the spline shaft (11).

4. A rotary reduction gear according to claim 1, wherein: and a sealing cover (17) is also arranged between the spline shaft (11) and the disc-shaped gasket (18).

5. A rotary reduction gear according to claim 1, wherein: gear (9) left side is overlapped in proper order and is equipped with first deep groove ball bearing (6), circlip (5) and first skeleton oil blanket (4) for the first hole, and gear (9) right side is overlapped in proper order and is equipped with second deep groove ball bearing (7), circlip (23) and second skeleton oil blanket (8) for the second hole.