CN215891031U

CN215891031U - Flange type speed reducer for stage

Info

Publication number: CN215891031U
Application number: CN202122007083.5U
Authority: CN
Inventors: 朱江南; 寿杰超; 朱其方; 朱伟军
Original assignee: Hangzhou Yuezhan Transmission Technology Co ltd
Current assignee: Hangzhou Yuezhan Transmission Technology Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-02-22
Anticipated expiration: 2031-08-25

Abstract

The utility model relates to a flange type speed reducer for a stage, which comprises a shell and a worm and gear speed reducing mechanism arranged in the shell, wherein the end part of a worm extends out of the shell to form a speed reducing input shaft, a flat key hole connected with a motor output shaft is arranged at the axle center part of the speed reducing input shaft, a connecting flange is fixed at the side edge of the shell, a center hole is arranged in the middle of the connecting flange, the center hole is coaxial with the speed reducing input shaft, a protruding positioning frustum is arranged on the end surface of the connecting flange, which is in contact with a motor, a threaded connecting hole fixed with the motor is arranged at the axle center part of the positioning frustum, and a copper sleeve is sleeved outside the positioning frustum. The copper sleeve is sleeved outside the positioning frustum, the positioning frustum is inserted into the positioning hole in the end part of the motor shell, and the positioning frustum and the positioning hole form positioning fit, so that after connection, the copper sleeve can properly compensate, and the positioning error is reduced; thereby improving the stability of the equipment during operation and preventing the stage equipment from generating obvious vibration during operation.

Description

Flange type speed reducer for stage

Technical Field

The utility model relates to a speed reducer, in particular to a flange type speed reducer for a stage.

Background

The speed reducer is a device for adjusting transmission speed ratio, and the speed reducer reduces output rotating speed and simultaneously improves output torque. And the output rotating speed of the motor is higher, and a speed reducer is also needed to reduce the speed to match the requirement of actual equipment.

With the updating of the stage equipment and the scene requirement of the stage design, especially when different stage models are needed to be assembled during performance, the actions of the stage equipment become diversified and complicated. Various modeling changes of the stage are mostly obtained through the output of the motor through the speed reducer, the matching and centering between the speed reducer and the motor are important, and the stability of the speed reducer directly influences the smoothness of the modeling changes of the stage.

Disclosure of Invention

The utility model provides a flange type speed reducer for a stage, wherein a connecting flange is fixed on a speed reducer shell, a positioning frustum is arranged on a matching surface between the connecting flange and a motor, a copper sleeve is sleeved outside the positioning frustum, deformation compensation is carried out through the copper sleeve, a threaded connecting hole is arranged at the axis position of the positioning frustum, and a gap between the threaded connecting hole and a matched bolt is controlled to be less than 0.05mm, so that the gap error generated by assembly is reduced, the stability of equipment during operation is improved, and the stage equipment cannot generate obvious vibration during operation.

The utility model provides a flange type speed reducer for a stage, wherein a sealing ring is arranged outside an input shaft of the speed reducer and seals an internal bearing, and the sealing ring is provided with an open energy absorption cavity and can absorb vibration generated and noise generated in the operation process.

The specific technical scheme of the utility model is as follows: the utility model provides a flange formula speed reducer for stage, which comprises a housin, set up worm gear speed reduction mechanism in the casing, the tip of worm stretches out the casing outside and forms the speed reduction input shaft, speed reduction input shaft axle center part is provided with the flat key hole that links to each other with the motor output shaft, the side of casing is fixed with flange, flange's centre bore is provided with, the centre bore is coaxial with the speed reduction input shaft, flange is provided with outstanding location frustum on the terminal surface that contacts with the motor, the axle center department of location frustum is provided with the threaded connection hole of fixing with the motor, the clearance control between the bolt of threaded connection hole and adaptation is below 0.05mm, the copper sheathing has been put to the outside cover of location frustum, the copper sheathing is the frustum form.

The copper sleeve is sleeved outside the positioning frustum, the material of the copper sleeve is lower than that of the connecting flange, when the positioning frustum is fixedly assembled with the motor, the positioning frustum is inserted into a positioning hole in the end part of the motor shell, and the positioning frustum and the positioning hole form positioning fit, so that after connection, the copper sleeve can be properly compensated, and the positioning error is reduced; the screw bolt is screwed into the threaded connection hole, the gap between the two accessories is controlled below 0.05mm, and generally controlled to be about 0.03mm, so that the shaking gap after the bolt is fixed is small, the matching between the threads is tight, the stability of the stage equipment during operation is improved, and the stage equipment cannot generate obvious vibration during operation.

Preferably, the number of the positioning conical tables is four, the distances between the four positioning conical tables and the center of the central hole are equal, the inner wall of the copper sleeve is in a conical shape, the inner wall of the copper sleeve is attached to the outer wall of the positioning conical table, the wall thickness of the copper sleeve is changed, the wall thickness of the small-diameter end of the copper sleeve is large, and the wall thickness of the large-diameter end of the copper sleeve is small.

Further preferably, the maximum wall thickness of the copper sleeve is 2.5mm, the axial length of the copper sleeve is smaller than the height of the positioning frustum, and the difference between the two is 0.02mm at most. The axial length of the copper sleeve is small, so that during assembly, a deformation space is formed in the axial direction.

Further preferably, the sealing ring comprises a base body and a bending part connected with the base body, wherein the bending part extends and bends from the side edge of the base body transversely, and the bending part encloses the energy absorption cavity. The side of the base body is attached to the speed reducer shell, and the bent portion encloses the energy absorption cavity after being bent, so that the vibration generated can be absorbed, and the noise generated in the operation process can be absorbed.

Preferably, the end part of the bending part is separated from the side surface of the base body to form a deformation groove, the deformation groove is radial relative to the sealing ring, and the deformation groove is communicated with the energy absorption cavity.

More preferably, an elastic ring is provided inside an outer end of the bending portion. The elastic ring is generally a steel wire ring, and can play a role in limiting the circumferential deformation of the sealing ring.

Further preferably, the side surface of the base body is a stepped surface, the lower surface is close to the center of the sealing ring, and the higher surface is arranged on the periphery of the sealing ring. The stepped surface can adapt to the rotation of the inner ring of the bearing, and the friction between the stepped surface and the edge of the inner ring is reduced.

Preferably, the flat keyhole of the axle center of the speed reduction input shaft is divided into an inner section and an outer section, and the aperture of the inner section is larger than that of the outer section.

The utility model has the beneficial effects that: the copper sleeve is sleeved outside the positioning frustum, the material of the copper sleeve is lower than that of the connecting flange, when the positioning frustum is fixedly assembled with the motor, the positioning frustum is inserted into a positioning hole in the end part of the motor shell, and the positioning frustum and the positioning hole form positioning fit, so that after connection, the copper sleeve can be properly compensated, and the positioning error is reduced; thereby improving the stability of the equipment during operation and preventing the stage equipment from generating obvious vibration during operation.

Drawings

FIG. 1 is a schematic diagram of one configuration of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a schematic view of a seal ring according to the present invention;

FIG. 4 is a schematic view of a positioning frustum of the present invention;

in the figure: 1. the device comprises a shell, 2, a connecting flange, 3, a threaded connecting hole, 4, a positioning frustum, 5, a copper sleeve, 6, a sealing ring, 7, a speed reduction input shaft, 8, a flat key hole, 9, a speed reduction output shaft, 10, a bearing, 11, a step surface, 12, a base body, 13, a deformation groove, 14, an elastic ring, 15, an energy absorption cavity, 16 and a bending part.

Detailed Description

The utility model is further described by the following specific embodiments in conjunction with the accompanying drawings.

Example (b):

as shown in fig. 1, 2, 3 and 4, the flange type speed reducer for the stage comprises a square shell 1 and a worm and gear speed reducing mechanism arranged in the shell, wherein the end part of a worm extends out of the shell to form a speed reducing input shaft 7, a flat key hole 8 connected with an output shaft of a motor is arranged at the axle center part of the speed reducing input shaft, a connecting flange 2 is fixed at the side edge of the shell, a center hole is formed in the middle of the connecting flange and is coaxial with the speed reducing input shaft, a protruding positioning frustum 4 is arranged on the end face, in contact with the motor, of the connecting flange, a threaded connecting hole 3 fixed with the motor is arranged at the axle center part of the positioning frustum, the gap between the threaded connecting hole and a matched bolt is controlled to be less than 0.05mm, a copper sleeve 5 is sleeved outside the positioning frustum, and is in a frustum shape. The central part of the worm wheel extends to form a speed reduction output shaft 9, the axis part of the speed reduction output shaft is provided with an output connecting hole, and the outside of the speed reduction output shaft is sleeved with a sealing ring.

The connecting flange is square in shape, the front face of the connecting flange is concave, the connecting flange comprises a connecting bottom, a peripheral wall and an end face annular wall, the connecting bottom is circular, the central hole is located in the central position of the connecting bottom, the peripheral wall is circular, and the end face annular wall is square in shape. The positioning conical tables are located on the end face annular wall, the number of the positioning conical tables is four, the positioning conical tables are located at the corners of the end face annular wall, and the distances between the four positioning conical tables and the center of the center hole are equal. The inner wall of the copper sleeve is in a conical shape, the inner wall of the copper sleeve is attached to the outer wall of the positioning frustum, the wall thickness of the copper sleeve is changed, the wall thickness of the small-diameter end of the copper sleeve is large, and the wall thickness of the large-diameter end of the copper sleeve is small. The maximum wall thickness of the copper sleeve is 2.5mm, the axial length of the copper sleeve is smaller than the height of the positioning frustum, and the maximum difference between the two is 0.018 mm.

The aperture of the central hole of the connecting flange is larger than the outer diameter of the speed reduction input shaft, a bearing 10 is arranged between the outside of the speed reduction input shaft and the shell, a sealing ring 6 is arranged between the outside of the speed reduction input shaft and the hole wall of the central hole, and the sealing ring seals the bearing. The sealing ring comprises a base body 12, a curved portion 16 connected to the base body, which curved portion extends transversely from the side of the base body and encloses an energy-absorbing chamber 15. The end part of the bending part is separated from the side surface of the base body to form a deformation groove 13, the deformation groove is radial relative to the sealing ring, and the deformation groove is communicated with the energy absorption cavity. An elastic ring 14 is arranged inside the outer end of the bending part. The side of the base body is a stepped surface 11, the lower surface is close to the center of the sealing ring, and the higher surface is arranged on the periphery.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, alterations and equivalents of the above embodiments according to the technical spirit of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a flange formula speed reducer for stage, a serial communication port, including casing (1), set up worm gear speed reduction mechanism in the casing, the tip of worm stretches out the casing outside and forms speed reduction input shaft (7), speed reduction input shaft axle center position is provided with flat key hole (8) that link to each other with the motor output shaft, the side of casing is fixed with flange (2), the centre bore of flange is provided with the centre bore, the centre bore is coaxial with speed reduction input shaft, be provided with outstanding location frustum (4) on the terminal surface that flange and motor contacted, the axle center department of location frustum is provided with threaded connection hole (3) fixed mutually with the motor, clearance control between the bolt of threaded connection hole and adaptation is below 0.05mm, copper sheathing (5) have been put to the outside cover of location frustum, the copper sheathing is the frustum form.

2. A stage flange speed reducer according to claim 1, wherein the number of the positioning cones is four, the four positioning cones are equidistant from the center of the central hole, the inner wall of the copper sleeve is tapered, the inner wall of the copper sleeve is fitted to the outer wall of the positioning cones, the wall thickness of the copper sleeve is variable, the wall thickness of the small diameter end of the copper sleeve is large, and the wall thickness of the large diameter end of the copper sleeve is small.

3. A stage flange speed reducer according to claim 1 or 2, wherein the maximum wall thickness of the copper sleeve is 2.5mm, the axial length of the copper sleeve is less than the height of the positioning frustum, and the difference between the two is 0.02mm at most.

4. A stage speed reducer according to claim 1, wherein the sealing ring comprises a base body (12), and a curved portion (16) connected to the base body, the curved portion extending laterally from a side of the base body and defining the energy-absorbing chamber (15).

5. A stage flange reducer as set forth in claim 4, wherein the end of the curved portion is separated from the side of the base to form a deformation groove (13) which is radial with respect to the seal ring and which communicates with the energy absorption chamber.

6. A stage flange reducer according to claim 4, wherein an elastic ring (14) is arranged inside the outer end of the bending portion.

7. A stage flange reducer as set forth in claim 4, wherein the base body has a stepped surface (11) on its side, a low surface near the center of the seal ring, and a high surface on its periphery.

8. A stage flange speed reducer according to claim 1, 2 or 4, wherein the flat keyhole at the axis of the speed reduction input shaft is divided into two sections, namely an inner section and an outer section, and the aperture of the inner section is larger than that of the outer section.