CN210106531U

CN210106531U - Input flange structure in precision planetary reducer

Info

Publication number: CN210106531U
Application number: CN201920910508.3U
Authority: CN
Inventors: 江建斌; 江建敏; 姚文龙
Original assignee: ZHEJIANG SANKAI MECHANICAL AND ELECTRICAL CO Ltd
Current assignee: ZHEJIANG SANKAI MECHANICAL AND ELECTRICAL CO Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-02-21
Anticipated expiration: 2029-06-17

Abstract

The utility model provides an input flange structure among accurate planetary reducer belongs to mechanical technical field. The utility model discloses in, the speed reducer includes the tube-shape casing and locates the input shaft in the casing, the casing is stretched out to the input shaft right-hand member, this input flange structure is including being annular body, the body is located the casing right-hand member and overlaps outside the input shaft, still including locating the adapter sleeve between body and the casing, and the input shaft passes through the bearing and is connected with the adapter sleeve rotation, integrated into one piece has and is annular connecting portion on the casing right-hand member face, be equipped with the ring channel that shape and size all match with connecting portion on the adapter sleeve left end face, connecting portion insert inlay in the ring channel, the ring channel diapire offsets with connecting portion right-hand member face, adapter sleeve right-hand member face offsets with the body left end face, integrated into one piece has and is annular connecting seat on the body lateral wall. This flange structure is convenient for change.

Description

Input flange structure in precision planetary reducer

Technical Field

The utility model belongs to the technical field of machinery, a input flange structure among accurate planetary reducer, especially an accurate planetary reducer is related to.

Background

The precision planetary reducer is another name for planetary reducer in industry, and its main transmission structure is: planet wheel, sun gear and ring gear. Compared with other speed reducers, the precision planetary speed reducer has the characteristics of high rigidity, high precision, high transmission efficiency (the single stage is 97-98%), high torque/volume ratio, no maintenance for life and the like.

The existing precision planetary reducer generally comprises a shell, an input shaft and an output shaft which are arranged in the shell, and the input shaft and the output shaft are connected through a planetary reduction mechanism. In order to facilitate the installation and positioning of the whole precise planetary reducer, one side of the shell is provided with a flange structure, the flange structure is fixedly connected with the shell through bolts, and the flange structure is rotatably connected with the input shaft through a bearing.

During the in-service use, for adapting to different installation environment, the user can select different flange structures to carry out the adaptation, nevertheless because the inside multiple accessory that need pack into of flange, the user is not only more troublesome when changing the flange, and general user does not have specific change ability moreover, and the operation degree of difficulty is great.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided an input flange structure among the convenient accurate planetary reducer of change.

The purpose of the utility model can be realized by the following technical proposal: an input flange structure in a precise planetary reducer, wherein the reducer comprises a cylindrical shell and an input shaft arranged in the shell, the right end of the input shaft extends out of the shell, the input flange structure comprises an annular body, the body is positioned at the right end of the shell and is sleeved outside the outer end of the input shaft, the input flange structure is characterized by also comprising a connecting sleeve arranged between the body and the shell, the input shaft is rotatably connected with the connecting sleeve through a bearing, an annular connecting part is integrally formed on the right end surface of the shell, an annular groove with the shape and the size matched with the connecting part is arranged on the left end surface of the connecting sleeve, the connecting part is inserted and embedded in the annular groove, the bottom wall of the annular groove is abutted against the right end surface of the connecting part, the right end surface of the connecting sleeve is abutted against the left end surface of the body, an annular connecting seat is integrally formed on the outer side wall of, and the connecting seat is detachably and fixedly connected with the shell through a plurality of bolts.

The pivot passes through the bearing and is connected with the adapter sleeve rotation, and the adapter sleeve is again through pressing from both sides the location between body and casing, that is to say, the body only is used for the installation of whole speed reducer and the location of adapter sleeve in this application, need not other spare parts of dismouting like this when changing the body, has the convenient advantage of change.

In the input flange structure of the precise planetary reducer, the bearing comprises an outer ring and an inner ring fixedly connected with the input shaft, an annular convex shoulder is integrally formed on the inner side wall of the connecting sleeve, a positioning part protruding in an annular shape is arranged on the left end face of the body, the positioning part is inserted in the connecting sleeve, and two end faces of the outer ring are respectively pressed on the positioning part and the annular convex shoulder. By adopting the design, the bearing is conveniently connected with the connecting sleeve.

In the input flange structure in the above-mentioned precision planetary reducer, the inside wall of adapter sleeve and the lateral wall of location portion be the periphery, and the lateral wall of outer lane and location portion all pastes with the inside wall of adapter sleeve and leans on.

In the input flange structure in the precise planetary reducer, an annular mounting groove is formed in the inner side wall of the connecting sleeve, a 0-shaped ring is arranged in the mounting groove, and the inner circumferential surface of the 0-shaped ring is abutted against the outer side wall of the outer ring. Under the action of the 0-shaped ring, reliable sealing is formed between the connecting sleeve and the outer ring.

In the input flange structure in the above-mentioned precision planetary reducer, the inside wall of the connecting portion on be equipped with and be annular oil storage tank, and oil storage tank and connecting portion coaxial line arrange, the oil storage tank intussuseption be filled with lubricating grease. Under the effect of lubricating grease, the contact position of the connecting part and the connecting sleeve is lubricated, so that the connecting part and the connecting sleeve are easy to assemble.

Compared with the prior art, this input flange structure among accurate planetary reducer passes through the bearing through the design pivot and is connected with the adapter sleeve rotation, and the adapter sleeve is again through pressing from both sides tight location between body and casing, that is to say, the body only is used for the installation of whole speed reducer and the location of adapter sleeve in this application, need not other spare parts of dismouting like this when changing the body, has the convenient advantage of change.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.

In the figure, 1, a housing; 1a, a connecting part; 1a1, oil storage tank; 2. an input shaft; 3. a body; 3a, a connecting seat; 3b, a positioning part; 4. connecting sleeves; 4a, an annular shoulder; 5. a bolt; 6. a bearing; 6a, an inner ring; 6b, an outer ring; 7. 0-shaped ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, in the input flange structure of the precision planetary reduction gear, the reduction gear includes a cylindrical housing 1 and an input shaft 2 provided in the housing 1, and the right end of the input shaft 2 extends out of the housing 1.

The input flange structure comprises a ring-shaped body 3 and a connecting sleeve 4 arranged between the body 3 and the shell 1. Wherein, the body 3 is positioned at the right end of the shell 1 and is sleeved outside the outer end of the input shaft 2; the right end face of the shell 1 is integrally formed with a ring-shaped connecting part 1a, and the connecting part 1a and the shell 1 are coaxially arranged. The left end face of the connecting sleeve 4 is provided with an annular groove with the shape and the size matched with the connecting part 1a, and the connecting part 1a is inserted and embedded in the annular groove. The ring channel comprises the wall of just setting up both sides wall and the diapire that is located between the both sides wall, and at this moment, the inside wall and the lateral wall of connecting portion 1a offset with the both sides wall of ring channel respectively. Further, the bottom wall of the annular groove abuts against the right end surface of the connecting portion 1a, and the right end surface of the connecting sleeve 4 abuts against the left end surface of the body 3, so that the connecting sleeve 4 is stably clamped between the housing 1 and the body 3. An annular connecting seat 3a is integrally formed on the outer side wall of the body 3, the connecting seat 3a is sleeved outside the shell 1, and the connecting seat 3a is detachably and fixedly connected with the shell 1 through a plurality of bolts 5. In the present embodiment, the bolt 5 is specifically mounted as follows: connecting seat 3a is equipped with the connecting hole along casing 1's radial through, and the connecting hole has a plurality ofly and along casing 1's circumference interval equipartition, is equipped with the screw hole on casing 1's the lateral wall, and screw hole and connecting hole quantity are the same and the position is just right one by one, all wears to be equipped with foretell bolt 5 in every connecting hole, and the pole portion spiro union of bolt 5 is in the screw hole that corresponds, and the head of bolt 5 supports presses on the lateral wall of connecting seat 3 a. Preferably, the inner side wall of the connecting socket 3a abuts against the outer side wall of the housing 1.

Further, as shown in fig. 2, an annular oil storage groove 1a1 is formed in the inner side wall of the connecting portion 1a, the oil storage groove 1a1 and the connecting portion 1a are coaxially arranged, and lubricating grease is filled in the oil storage groove 1a1 to lubricate the contact position of the connecting portion 1a and the connecting sleeve 4, so that the assembly of the connecting portion 1a and the connecting sleeve 4 is easy.

As shown in fig. 1 and 2, the input shaft 2 is rotatably connected with the connecting sleeve 4 through a bearing 6, and the bearing 6 is installed in the following manner: the bearing 6 comprises an outer ring 6b and an inner ring 6a fixedly connected with the input shaft 2, an annular convex shoulder 4a is integrally formed on the inner side wall of the connecting sleeve 4, and the annular convex shoulder 4a and the connecting sleeve 4 are coaxially arranged. The left end surface of the body 3 is provided with a positioning part 3b which is annularly protruded, and the positioning part 3b is inserted in the connecting sleeve 4. The outer ring 6b is positioned between the positioning portion 3b and the annular shoulder 4a, and both end faces of the outer ring 6b are pressed against the positioning portion 3b and the annular shoulder 4a, respectively. Further, the inner side wall of the connecting sleeve 4 and the outer side wall of the positioning portion 3b are both circumferential surfaces, and the outer side walls of the outer ring 6b and the positioning portion 3b are both attached to the inner side wall of the connecting sleeve 4. An annular mounting groove is formed in the inner side wall of the connecting sleeve 4, a 0-shaped ring 7 is arranged in the mounting groove, and the inner circumferential surface of the 0-shaped ring 7 abuts against the outer side wall of the outer ring 6b, so that reliable sealing is formed between the connecting sleeve 4 and the outer ring 6 b.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. Input flange structure in accurate planetary reducer, the speed reducer includes the casing (1) that is the tube-shape and locates input shaft (2) in casing (1), and the right-hand member of input shaft (2) stretches out casing (1), this input flange structure includes annular body (3), body (3) are located casing (1) right-hand member and cover outside the outer end of input shaft (2), its characterized in that, this input flange structure still includes adapter sleeve (4) of locating between body (3) and casing (1), and input shaft (2) are connected with adapter sleeve (4) through bearing (6) rotation, integrated into one piece has annular connecting portion (1a) on the right-hand member face of casing (1), be equipped with the ring channel that shape and size all match with connecting portion (1a) on the left end face of adapter sleeve (4), connecting portion (1a) are inserted and are inlayed in the ring channel, the diapire of ring channel offsets with the right-hand member face of connecting portion (1a), and the right end face of adapter sleeve (4) offsets with the left end face of body (3), the lateral wall of body (3) on integrated into one piece have and be annular connecting seat (3a), connecting seat (3a) cup joint outside casing (1), and connecting seat (3a) can dismantle through many bolts (5) and casing (1) and link firmly.

2. The input flange structure in the precision planetary reducer of claim 1, wherein the bearing (6) comprises an outer ring (6b) and an inner ring (6a) fixedly connected with the input shaft (2), an annular shoulder (4a) is integrally formed on the inner side wall of the connecting sleeve (4), a positioning portion (3b) which protrudes in an annular shape is arranged on the left end face of the body (3), the positioning portion (3b) is inserted into the connecting sleeve (4), and two end faces of the outer ring (6b) are respectively pressed on the positioning portion (3b) and the annular shoulder (4 a).

3. The input flange structure of the precise planetary reducer according to claim 2, wherein the inner side wall of the connecting sleeve (4) and the outer side wall of the positioning portion (3b) are circumferential surfaces, and the outer side walls of the outer ring (6b) and the positioning portion (3b) are attached to the inner side wall of the connecting sleeve (4).

4. The input flange structure of the precise planetary reducer as claimed in claim 2 or 3, wherein the inner side wall of the connecting sleeve (4) is provided with an annular mounting groove, a 0-shaped ring (7) is arranged in the mounting groove, and the inner circumferential surface of the 0-shaped ring (7) is abutted against the outer side wall of the outer ring (6 b).

5. The input flange structure in the precision planetary reducer of claim 1, 2 or 3, wherein the inner side wall of the connecting portion (1a) is provided with an annular oil storage groove (1a1), the oil storage groove (1a1) and the connecting portion (1a) are coaxially arranged, and the oil storage groove (1a1) is filled with lubricating grease.