CN210686865U

CN210686865U - Reliably-fixed internal gear

Info

Publication number: CN210686865U
Application number: CN201921096842.6U
Authority: CN
Inventors: 张亦标; 董吉初
Original assignee: Yancheng Jinzhou Machinery Manufacture Co ltd
Current assignee: Yancheng Jinzhou Machinery Manufacture Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-06-05
Anticipated expiration: 2029-07-12

Abstract

A reliably fixed internal gear relates to a gear. The ring gear lower surface is provided with connecting axle locating hole one, pinion toothing sets up in the ring gear, the bottom surface is provided with annular groove in the ring gear, the centre bore and the annular groove of pinion correspond the setting, the pinion upper surface is provided with regular polygon recess, the limiting plate is established in regular polygon recess for regular polygon plate and clearance card the same with regular polygon recess shape, the limiting plate upper surface is provided with connecting axle locating hole two, the limiting plate lower surface is provided with the axostylus axostyle joint, the axostylus axostyle connects the centre bore that rotates and pass the pinion, and the axostylus axostyle connects lower extreme slip card and establishes in annular groove, the peripheral. Avoid the transmission shaft vibration too big influence transmission stability, simple structure is reasonable, and stability is strong.

Description

Reliably-fixed internal gear

Technical Field

The utility model relates to a gear, especially a reliably fixed internal gear.

Background

The ring gear is a common mechanical transmission form, and generally consists of a gear ring and a pinion engaged inside the gear ring, and two transmission shafts are respectively connected and positioned with the gear ring and the pinion to realize transmission relationship.

The pinion of the traditional ring gear is directly connected and positioned with the end part of a transmission shaft, the transmission shaft can vibrate during working, and the longer the transmission shaft is, the more obvious the vibration is, and the transmission stability is influenced. Therefore, an internal gear which is reliable in fixing and can prevent the transmission shaft from vibrating too much to affect the transmission stability is very needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reliable fixed internal gear to solve above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the following technical proposal: a reliably fixed internal gear comprises a gear ring and a pinion, wherein the gear ring is a circular groove-shaped component, teeth are arranged on the inner side wall of the gear ring along the circumferential direction, a first connecting shaft positioning hole is integrally and concentrically arranged on the lower surface of the gear ring, the pinion is meshed and arranged in the gear ring, an annular groove is concentrically arranged on the inner bottom surface of the gear ring, a central hole of the pinion corresponds to the annular groove, a regular polygon groove is concentrically arranged on the upper surface of the pinion, a limiting plate is arranged in the regular polygon groove, the limiting plate is a regular polygon plate with the same shape as the regular polygon groove, a second connecting shaft positioning hole is integrally and concentrically arranged on the upper surface of the limiting plate, a shaft rod joint is integrally and concentrically arranged on the lower surface of the limiting plate, the shaft rod joint penetrates through the central hole of the pinion, a plurality of balls are evenly embedded into the periphery of the limiting plate, and the balls are arranged in contact with the inner side wall of the regular polygon groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a setting up of limiting plate is reliably fixed pinion and ring gear, the axostylus axostyle joint of limiting plate rotates the centre bore and the slip card that pass the pinion and establishes in the annular groove of ring gear bottom setting, do not influence the rotation of ring gear on the one hand, on the other hand plays the connection effect with the transmission shaft that the limiting plate corresponds and ring gear, avoid the too big transmission stability that influences of this transmission shaft vibration, set up a plurality of balls between the regular polygon recess inside wall of limiting plate and pinion, compare with rigid connection and can play certain weakening effect to the vibration conduction, moreover, the steam generator is simple in structure, and high stability is achieved.

Drawings

FIG. 1 is an isometric view of a positively retained ring gear of the present invention;

FIG. 2 is a top plan view of the positive retention ring gear of the present invention;

fig. 3 is a bottom view of the securely retained ring gear of the present invention;

fig. 4 is a schematic diagram of the securely retained ring gear of the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

The first embodiment is as follows: as shown in fig. 1-4, the utility model discloses a reliably fixed inner gear, which comprises a gear ring 1 and a pinion 2, wherein the gear ring 1 is a circular groove-shaped component, teeth are arranged on the inner side wall of the gear ring 1 along the circumferential direction, a connecting shaft positioning hole I1-1 is concentrically arranged on the lower surface of the gear ring 1, the pinion 2 is meshed with the gear ring 1, an annular groove 1-2 is concentrically arranged on the inner bottom surface of the gear ring 1, a central hole of the pinion 2 is arranged corresponding to the annular groove 1-2, a regular polygon groove 2-1 is concentrically arranged on the upper surface of the pinion 2, a limiting plate 3 is arranged in the regular polygon groove 2-1, the limiting plate 3 is a regular polygon plate with the same shape as the regular polygon groove 2-1 and is clamped in the regular polygon groove 2-1 in a clearance manner, a connecting shaft positioning hole II 3-1 is concentrically, the lower surface of the limiting plate 3 is integrally and concentrically provided with a shaft rod joint 3-2, the shaft rod joint 3-2 penetrates through a center hole of the pinion 2 in a rotating mode, the lower end of the shaft rod joint 3-2 is clamped in the annular groove 1-2 in a sliding mode, a plurality of balls 3-3 are evenly embedded into the periphery of the limiting plate 3, and the balls 3-3 are arranged in a contact mode with the inner side wall of the regular polygonal groove 2-1.

The second embodiment is as follows: as shown in fig. 4, this embodiment is further described as the first embodiment, the section of the bottom of the annular groove 1-2 is a major arc with an upward opening, and the lower end of the shaft adapter 3-2 is made into a ball head and is slidably clamped in the annular groove 1-2 by the ball head.

The third concrete implementation mode: as shown in fig. 2, in the present embodiment, a gap between the limiting plate 3 and the regular polygonal groove 2-1 is 1-2 mm.

Referring to fig. 1-4, two transmission shafts with transmission relationship outside are respectively inserted into and positioned in a first connecting shaft positioning hole 1-1 of a gear ring 1 and a second connecting shaft positioning hole 3-1 of a limiting plate 3, instead of the traditional mode that the transmission shafts are directly connected with a pinion 2, the limiting plate 3 is additionally arranged to connect the transmission shafts, taking the active rotation of the gear ring 1 as an example, when the gear ring 1 rotates, the pinion 2 is provided with a regular polygon groove 2-1, the limiting plate 3 is a regular polygon plate with the same shape as the regular polygon groove 2-1, therefore, the limiting plate 3 is driven to rotate together when the pinion 2 rotates, a shaft rod joint 3-2 of the limiting plate 3 positions the pinion 2, and the lower end of the shaft rod joint 3-2 is provided with a ball head which is slidably clamped in an annular groove 1, on the one hand does not influence the rotation of ring gear 1, on the other hand plays the connection effect with the transmission shaft that limiting plate 3 corresponds with ring gear 1, avoid the too big transmission stability that influences of this transmission shaft vibration, and set up a plurality of balls 3-3 between limiting plate 3 and pinion 2's regular polygon recess 2-1 inside wall, compare with rigid connection and can play certain weakening effect to the vibration conduction, the same reason when pinion 2 initiative is rotated, the transmission shaft passes through limiting plate 3 drive pinion 2 and rotates, pinion 2 rotates transmission ring gear 1 and rotates, the setting of annular groove 1-2 does not influence the rotation of ring gear 1, moreover, the steam generator is simple and reasonable in structure, effectively reduce between two transmission shafts because of the too big transmission stability that influences of vibration.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other forms of embodiment without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a reliable fixed ring gear, includes ring gear (1) and pinion (2), ring gear (1) is that circular slot form component and its inside wall system have tooth along the circumferencial direction, and ring gear (1) lower surface an organic whole is provided with connecting axle locating hole one (1-1) with one heart, pinion (2) meshing sets up in ring gear (1), its characterized in that: an annular groove (1-2) is concentrically arranged on the inner bottom surface of the gear ring (1), a central hole of the pinion (2) is arranged corresponding to the annular groove (1-2), a regular polygon groove (2-1) is concentrically arranged on the upper surface of the pinion (2), a limiting plate (3) is arranged in the regular polygon groove (2-1), the limiting plate (3) is a regular polygon plate with the same shape as the regular polygon groove (2-1) and is clamped in the regular polygon groove (2-1) in a clearance mode, a connecting shaft positioning hole II (3-1) is concentrically arranged on the upper surface of the limiting plate (3) integrally, a shaft rod joint (3-2) is concentrically arranged on the lower surface of the limiting plate (3) integrally, the shaft rod joint (3-2) penetrates through the central hole of the pinion (2) in a rotating mode, and the lower end of the shaft rod joint (3-2) is slidably clamped, a plurality of balls (3-3) are uniformly embedded into the periphery of the limiting plate (3), and the balls (3-3) are arranged in contact with the inner side wall of the regular polygon groove (2-1).

2. A positive retaining ring gear in accordance with claim 1 wherein: the section of the bottom of the annular groove (1-2) is a major arc with an upward opening, and the lower end of the shaft rod joint (3-2) is made into a ball head and is slidably clamped in the annular groove (1-2) through the ball head.

3. A positive retaining ring gear in accordance with claim 1 wherein: the clearance between the limiting plate (3) and the regular polygon groove (2-1) is 1-2 mm.