Worm gear speed reducer
By installing a sealing disc and filling it with polyurethane sealant between the shaft disc and flange of the worm gear reducer, the water leakage problem caused by the lack of a sealing structure between the shaft disc and flange is solved, resulting in better sealing effect and extended service life.
Patent Information
- Application Number
- CN202520833724.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-28
AI Technical Summary
The existing worm gear reducer lacks a sealing structure between the shaft disc and the flange, which makes it prone to leakage in a water environment and affects its service life.
A sealing disc with a sealing structure is installed between the shaft disc and the flange. The inner and outer rings of the sealing disc have wrapping rings and inner and outer sealing cavities. The inner and outer sealing cavities are filled with polyurethane sealant, and the sealant is tightened by the raised groove and the inner pressure part to improve the sealing performance.
The sealing performance of the worm gear reducer has been enhanced, preventing water leakage and extending its service life.
Smart Images
Figure CN223854802U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of speed reducer, and relates to a worm gear speed reducer. BACKGROUND
[0002] The current worm gear speed reducer has a flange integrated with the box on the shaft disc, which is used for external connection disc, but the sealing structure is lacked between the shaft disc and the flange, when used in water environment, water leakage is caused easily, and the shaft in the shaft disc is contacted, which influences the service life. SUMMARY
[0003] The utility model discloses in order to solve the technical problem in the prior art, provide a high sealing worm gear speed reducer.
[0004] The utility model discloses a worm gear speed reducer, including the machine case and drive motor, its characterized in that, the machine case has the flange disc, the machine case has the shaft disc with the axle hole, the shaft disc and flange disc concentricity are established, be equipped with the sealing disc with sealing structure between the shaft disc and flange disc, the sealing disc inner and outer rings all have two symmetrical formed and are wrapped around the circle, and the outer sealing cavity has between two wrapped around the circle, the sealing disc inner and outer rings all have the inner sealing cavity with corresponding outer sealing cavity intercommunication, the cavity wall of inner sealing cavity has a plurality of the convex groove for starting, the inner and outer sealing cavity are filled with polyurethane sealant, and the wrapped around the circle end has the inner pressure part that gathers to the inside.
[0005] In the worm gear speed reducer, the sealing disc is installed on the machine case through the screw.
[0006] Compared with the prior art, the worm gear speed reducer has the advantage that the sealing performance is strong. BRIEF DESCRIPTION OF DRAWINGS
[0007] Figure 1 It is the perspective drawing of the worm gear speed reducer.
[0008] Figure 2 It is the partial section view of the sealing disc.
[0009] In the drawing, 1, machine case, 2, drive motor, 3, flange disc, 4, shaft disc, 5, sealing disc, 6, wrapped around the circle, 7, outer sealing cavity, 8, inner sealing cavity, 9, convex groove, 10, polyurethane sealant, 11, inner pressure part. DETAILED DESCRIPTION
[0010] The following is the specific embodiment of the utility model and is combined with the drawings, and the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.
[0011] As Figure 1 , Figure 2As shown, the worm reducer comprises a machine box 1 and a driving motor 2, the machine box 1 is provided with a flange plate 3, the machine box 1 is provided with an axle disc 4 with an axle hole, the axle disc 4 and the flange plate 3 are concentrically arranged, a sealing disc 5 with a sealing structure is arranged between the axle disc 4 and the flange plate 3, the sealing disc 5 is provided with two symmetrical wrapping rings 6 at the inner and outer rings, the two wrapping rings 6 are provided with an outer sealing cavity 7, the inner and outer rings of the sealing disc 5 are provided with an inner sealing cavity 8 in communication with the corresponding outer sealing cavity 7, the cavity wall of the inner sealing cavity 8 is provided with a plurality of convex grooves 9 for the protrusions, the inner and outer sealing cavities 7 are filled with polyurethane sealant 10, the wrapping ring 6 is provided with an inwardly retracted inner pressure part 11 at the end, the polyurethane sealant 10 is injected into the inner and outer sealing cavities 7, and the sealant is tightened in the inner sealing cavity 7 through the plurality of convex grooves 9 and the inner pressure part 11, so as to improve the sealing performance.
[0012] Preferably, the sealing disc 5 is installed on the machine box 1 by screws.
[0013] The specific embodiments described herein merely exemplify the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.
[0014] Although the terms such as machine box 1, driving motor 2, flange plate 3, axle disc 4, sealing disc 5, wrapping ring 6, outer sealing cavity 7, inner sealing cavity 8, convex groove 9, polyurethane sealant 10, and inner pressure part 11 are used more frequently herein, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.
Claims
1. A worm reduction gear comprising a housing (1) and a drive motor (2), characterized in that The flange plate (3) is arranged on the case (1), the shaft plate (4) with the shaft hole is arranged on the case (1), the shaft plate (4) and the flange plate (3) are concentrically arranged, the sealing plate (5) with the sealing structure is arranged between the shaft plate (4) and the flange plate (3), the two symmetrical wrapping rings (6) are arranged on the inner and outer rings of the sealing plate (5), the outer sealing cavity (7) is arranged between the two wrapping rings (6), the inner and outer rings of the sealing plate (5) are provided with the inner sealing cavities (8) communicated with the corresponding outer sealing cavities (7), the cavity wall of the inner sealing cavity (8) is provided with a plurality of convex grooves (9) for starting, the polyurethane sealant (10) is filled in the inner and outer sealing cavities (7), and the inner pressing part (11) is arranged on the end of the wrapping ring (6) and is inwardly folded.
2. A worm gear speed reducer according to claim 1, wherein The sealing plate (5) is installed on the case (1) through the screw.