CN211550470U

CN211550470U - Dedicated planetary gear reducer connection structure of pneumatic motor

Info

Publication number: CN211550470U
Application number: CN201922223213.1U
Authority: CN
Inventors: 陈涛; 唐晓龙; 陈鹏; 吴俊峰; 张慧明; 胡文波; 胡群飞
Original assignee: Zhejiang University Kunshan Innovation Institute
Current assignee: Zhejiang University Kunshan Innovation Institute
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-09-22
Anticipated expiration: 2029-12-12

Abstract

The utility model provides a dedicated planetary gear reducer connection structure of pneumatic motor, it is connected pneumatic motor and planetary reducer accuracy reliably, has ensured the stable transmission between the two. It includes pneumatic motor, planetary reducer, pneumatic motor's output orientation planetary reducer's input is arranged, its characterized in that: the outer ring circumference of the shell corresponding end of the input end of the planetary reducer protrudes outwards to form a stopping connection structure, the stopping connection structure comprises an external connection ring, the input end is specifically a hollow shaft part with a key groove, the output end is specifically a transmission shaft with a key, the transmission shaft is inserted and positioned in the hollow shaft part with the key groove and is installed in a matched mode through the key groove structure, a transition step is arranged at the position, corresponding to the transmission shaft, of the pneumatic motor, and one end of a connection flange is sleeved behind the outer ring surface of the transition step and is fixedly connected with the transition step through a first radial screw.

Description

Dedicated planetary gear reducer connection structure of pneumatic motor

Technical Field

The utility model relates to a technical field that planetary reducer connects specifically is a dedicated planetary reducer connection structure of pneumatic motor.

Background

With the wide application of the planetary reducer, the performance of the planetary reducer is continuously excavated and developed, and the application scenes are continuously changed, so that various application scenes exist. The output end of the existing pneumatic motor is special, and in order to be connected with a planetary reducer, special design is needed to meet special requirements of the pneumatic motor.

Disclosure of Invention

To the problem, the utility model provides a dedicated planetary reducer connection structure of pneumatic motor, it is connected pneumatic motor and planetary reducer accuracy reliably, has ensured the stable transmission between the two.

The technical scheme is that the connecting structure of the special planetary speed reducer for the pneumatic motor comprises the pneumatic motor and the planetary speed reducer, wherein the output end of the pneumatic motor is arranged towards the input end of the planetary speed reducer, and the connecting structure is characterized in that: the outer ring circumference of the shell corresponding end of the input end of the planetary reducer protrudes outwards to form a stop connection structure, the stop connection structure comprises an external connection ring, the input end is a hollow shaft part with a key groove, the output end is a transmission shaft with a key, the transmission shaft is inserted and positioned in the hollow shaft part with the key groove and is installed in a matched mode through the key groove structure, a transition step is arranged at the position, corresponding to the transmission shaft, of the pneumatic motor, one end of a connection flange is sleeved on the outer ring surface of the transition step and is connected with the transition step in a fastening mode through a first radial screw, and the other end of the connection flange is inserted into the inner ring of the external connection ring and is connected with the external connection ring in a fastening mode through a second radial screw.

It is further characterized in that: the inner wall of the connecting flange is provided with a bearing corresponding to the outer wall of the hollow shaft part, one end of the outer part of the hollow shaft part corresponding to the inner ring of the bearing is provided with a step positioning ring, the other end of the inner ring is provided with a first elastic retaining ring, and the first elastic retaining ring is sleeved on a corresponding concave ring groove of the outer wall of the hollow shaft part, so that the position of the inner ring of the bearing is stable and reliable;

a stop inner convex ring is arranged at one end of the connecting flange corresponding to the outer ring of the bearing, a first surface of a stop spring is mounted on the stop inner convex ring in a jacking manner, a second surface of the stop spring is mounted on one end surface of the outer ring in a jacking manner, at least one concave limiting ring groove is arranged in a length region of the connecting flange corresponding to the outer ring, a second elastic retainer ring is embedded in the concave limiting ring groove, and the inner ring of the second elastic retainer ring is tightly sleeved on the outer ring in an arrangement manner, so that the position of the outer ring is stable and reliable;

the baffle is sleeved in the outer ring area of the hollow shaft part corresponding to the shell, a gap is reserved between the radial inner ring of the baffle and the hollow shaft part, the baffle is fixedly connected to the corresponding end face of the shell through an axial screw, the radial inner ring of the stopping connecting structure is tightly sleeved in the inner side area of the outer ring stopping ring of the baffle, the sealing of the stopping connecting structure and the baffle is ensured, and the sealing of a transmission part during transmission is ensured.

After the technical scheme is adopted, the transition step of the pneumatic motor and the stop connecting structure of the planetary reducer are fixedly connected through the connecting flange respectively, the output end of the pneumatic motor is inserted and positioned in the hollow shaft part of the planetary reducer through the key groove structure, and the positions of the pneumatic motor and the planetary reducer are fixed through the connecting flange, so that the output end of the pneumatic motor and the input end of the planetary reducer are stably and reliably connected; the pneumatic motor and the planetary reducer are accurately and reliably connected, and stable transmission between the pneumatic motor and the planetary reducer is ensured.

Drawings

Fig. 1 is a schematic view of the front view of the present invention in a partial sectional structure;

the names corresponding to the sequence numbers in the figure are as follows:

the device comprises a pneumatic motor 1, a planetary reducer 2, an output end 3, a transmission shaft 31, an input end 4, a hollow shaft part 41, a shell 5, a stop connecting structure 6, an external connecting ring 61, a radial inner ring 62, a transition step 7, a connecting flange 8, a first radial screw 9, a second radial screw 10, a bearing 11, an inner ring 111, an outer ring 112, a step positioning ring 12, a first elastic retainer ring 13, an inner concave ring groove 14, a stop inner convex ring 15, a stop spring 16, an inner concave limiting ring groove 17, a second elastic retainer ring 18, a baffle plate 19 and an axial screw 20.

Detailed Description

A kind of specialized planetary reducer linkage of the pneumatic motor, see figure 1: the pneumatic motor comprises a pneumatic motor 1 and a planetary reducer 2, wherein an output end 3 of the pneumatic motor 1 is arranged towards an input end 4 of the planetary reducer 2, an outer ring of a shell 5 of the input end 4 of the planetary reducer 2 at a corresponding end protrudes outwards to form a stopping connection structure 6, the stopping connection structure 6 comprises an external connection ring 61, the input end 4 is a hollow shaft part 41 with a key groove, the output end 3 is a transmission shaft 31 with a key, the transmission shaft 31 is inserted and positioned in the hollow shaft part 41 with the key groove and is installed in a matched mode through the key groove structure, a transition step 7 is arranged at a position of the pneumatic motor 1 corresponding to the transmission shaft, one end of a connection flange 8 is sleeved behind an outer ring surface of the transition step 7, the transition step 7 is tightly connected by a first radial screw 9, and the other end of the connecting flange 8 is inserted into the inner ring of the outer connecting ring 61 and tightly connected with the outer connecting ring 61 by a second radial screw 10.

A bearing 11 is arranged on the inner wall of the connecting flange 8 corresponding to the outer wall of the hollow shaft part 41, a step positioning ring 12 is arranged at one end of the outer part of the hollow shaft part 41 corresponding to an inner ring 111 of the bearing 11, a first elastic retainer ring 13 is arranged at the other end of the inner ring 111, and the first elastic retainer ring 13 is sleeved on a corresponding concave ring groove 14 on the outer wall of the hollow shaft part 41, so that the position of the inner ring 111 of the bearing 11 is ensured to be stable and reliable;

a stop inner collar 15 is arranged at one end of the connecting flange 8 corresponding to an outer ring 112 of the bearing 11, a first surface of a stop spring 16 is mounted on the stop inner collar 15 in a propping manner, a second surface of the stop spring 16 is mounted on one end surface of the outer ring 112 in a propping manner, at least one concave limiting ring groove 17 is arranged in a length region of the connecting flange 8 corresponding to the outer ring 112, a second elastic check ring 18 is embedded in the concave limiting ring groove 17, and an inner ring of the second elastic check ring 18 is tightly sleeved on the outer ring 112 and ensures that the position of the outer ring 112 is stable and reliable;

the baffle plate 19 is sleeved on the outer ring area of the hollow shaft part 41 corresponding to the shell 5, a gap is reserved between the radial inner ring of the baffle plate 19 and the hollow shaft part 41, the baffle plate 19 is fixedly connected to the corresponding end surface of the shell 5 through an axial screw 20, and the radial inner ring 62 of the stopping connecting structure 6 is tightly sleeved on the inner side area of the outer ring stopping ring of the baffle plate 19, so that the sealing of the stopping connecting structure 6 and the baffle plate 19 is ensured, and the sealing of a transmission part during transmission is ensured.

The working principle is as follows: the connecting flange is fixedly connected with a transition step of the pneumatic motor and a stop connecting structure of the planetary reducer respectively, the output end of the pneumatic motor is inserted and positioned in the hollow shaft part of the planetary reducer through a key groove structure, the positions of the pneumatic motor and the planetary reducer are fixed by the connecting flange, and the outer ring surface of the connecting flange and the outer ring surface of the hollow shaft part are provided with bearings, so that the connection between the output end of the pneumatic motor and the input end of the planetary reducer is stable and reliable; the pneumatic motor and the planetary reducer are accurately and reliably connected, and stable transmission between the pneumatic motor and the planetary reducer is ensured.

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 specific forms 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 dedicated planetary gear reducer connection structure of pneumatic motor, its includes pneumatic motor, planetary reducer, the output of pneumatic motor is towards the input of planetary reducer arranges its characterized in that: the outer ring circumference of the shell corresponding end of the input end of the planetary reducer protrudes outwards to form a stop connection structure, the stop connection structure comprises an external connection ring, the input end is a hollow shaft part with a key groove, the output end is a transmission shaft with a key, the transmission shaft is inserted and positioned in the hollow shaft part with the key groove and is installed in a matched mode through the key groove structure, a transition step is arranged at the position, corresponding to the transmission shaft, of the pneumatic motor, one end of a connection flange is sleeved on the outer ring surface of the transition step and is connected with the transition step in a fastening mode through a first radial screw, and the other end of the connection flange is inserted into the inner ring of the external connection ring and is connected with the external connection ring in a fastening mode through a second radial screw.

2. The planetary gear reducer connection structure for a pneumatic motor according to claim 1, wherein: the inner wall of the connecting flange is provided with a bearing corresponding to the outer wall of the hollow shaft, a step positioning ring is arranged at one end, corresponding to the inner ring of the bearing, of the outer portion of the hollow shaft, a first elastic retaining ring is arranged at the other end of the inner ring, and the first elastic retaining ring is sleeved on the corresponding concave ring groove of the outer wall of the hollow shaft.

3. The planetary gear reducer connection structure for a pneumatic motor according to claim 2, wherein: the bearing is characterized in that a stop inner convex ring is arranged at one end of the connecting flange corresponding to the outer ring of the bearing, a first surface of a stop spring is mounted on the stop inner convex ring in a jacking mode, a second surface of the stop spring is mounted on one end face of the outer ring in a jacking mode, at least one concave limiting ring groove is arranged in a length region of the connecting flange corresponding to the outer ring, a second elastic check ring is embedded in the concave limiting ring groove, and the inner ring of the second elastic check ring is tightly sleeved on the outer ring in an arranging mode.

4. A planetary gear reducer connecting structure dedicated to a pneumatic motor according to claim 3, characterized in that: the baffle is sleeved in an outer ring area of the hollow shaft part corresponding to the shell, a gap is reserved between a radial inner ring of the baffle and the hollow shaft part, the baffle is fixedly connected to the corresponding end face of the shell through an axial screw, and the radial inner ring of the stopping connection structure is tightly sleeved in the inner side area of an outer ring stopping ring of the baffle.