A speed reducer case
By introducing curved guide rails and curved slider structures into the worm gear reducer housing, flexible switching of multi-faceted machining of the worm gear reducer housing is achieved, solving the problem of low efficiency in traditional machining, reducing costs and time, and improving installation convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINSHENGDA MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-10-16
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional worm gear reducer housings have low processing efficiency and high cost, and unnecessary surface machining increases time and cost.
A worm gear reducer housing was designed, which connects the worm gear housing and the worm housing. The outer wall of the worm gear housing is provided with a curved guide rail and a curved slider. The movable mounting panel can be flexibly switched between multi-faceted processing through threaded connection and positioning holes, eliminating unnecessary machining surfaces.
By reducing the number of machined surfaces, processing time and costs are reduced, resulting in a novel structure, convenient installation, complete functions, and strong practicality.
Smart Images

Figure CN224497346U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of speed reducer manufacturing technology, and more specifically, it relates to a speed reducer housing. Background Technology
[0002] Traditional worm gear reducer housings are mostly rectangular, with mounting holes on the top, bottom, left, and right sides for connection. Due to installation accuracy requirements, the top, bottom, left, and right sides must all be machined to a certain precision.
[0003] In actual connections, the top, bottom, left, and right sides are often connected using only one side. Therefore, the unused sides require finishing, indirectly increasing processing time and cost, resulting in poor overall performance. Accordingly, this utility model proposes a gearbox housing. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a reducer housing with novel structure and convenient installation.
[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: This utility model relates to a reducer housing, including a worm gear reducer housing. The worm gear reducer housing includes a cylindrical worm gear housing and a cylindrical worm housing. The worm housing is connected to the worm gear housing. The axis of the worm gear housing is perpendicular to the axis of the worm housing. A curved guide rail extending circumferentially is provided on the outer wall of the worm gear housing. The curved guide rail extends circumferentially around the central axis of the worm gear housing. The curved guide rail is fixedly connected to the worm gear housing. A curved slider is slidably connected to the curved guide rail. The curved slider extends along the extension trajectory of the curved guide rail. A movable mounting panel is provided on the curved slider for follow-up movement. The movable mounting panel has a mounting hole and a threaded hole penetrating the movable mounting panel and the curved slider. A set screw with its end abutting against the worm gear housing is threaded into the threaded hole.
[0006] The present invention is further configured such that: the worm gear housing is located above the worm wheel housing; the outer wall of the worm wheel housing is provided with a first positioning hole, a second positioning hole, and a third positioning hole; the first positioning hole is located on the left side of the worm wheel housing; the second positioning hole is located on the right side of the worm wheel housing; and the third positioning hole is located at the bottom of the worm wheel housing; the first positioning hole and the second positioning hole are coaxially arranged; the axes of the first positioning hole and the second positioning hole extend horizontally left and right; the third positioning hole is located in the middle of the first positioning hole and the second positioning hole; and the axis of the third positioning hole extends vertically up and down; and the end of the set screw is embedded in the first positioning hole, the second positioning hole, or the third positioning hole.
[0007] The present invention is further configured such that the extension circumference of the curved guide rail is 180° to 270°.
[0008] The present invention is further configured such that the outer end of the threaded hole has a countersunk hole.
[0009] The present invention is further configured such that the mounting holes are arranged in a rectangular array on the movable mounting panel.
[0010] In summary, the present invention has the following beneficial effects: The reducer housing involved in the present invention, by precision machining the end face of the movable mounting panel used for external connection, can be arbitrarily switched between left, right and down positions, saving two machining surfaces, indirectly reducing machining time and cost, with novel structure, convenient installation, complete overall function and strong practicality. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is a partial structural schematic diagram of the present invention. Detailed Implementation
[0013] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.
[0014] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.
[0015] Example 1
[0016] See Figure 1 and Figure 2As shown, the reducer housing involved in this embodiment includes a worm gear reducer housing, which includes a cylindrical worm gear housing 1 and a cylindrical worm housing 2. The worm housing 2 is connected to the worm gear housing 1, and the axis of the worm gear housing is perpendicular to the axis of the worm housing 2. A curved guide rail 3 extending circumferentially is provided on the outer wall of the worm gear housing 1. The curved guide rail 3 extends circumferentially around the central axis of the worm gear housing 1. The curved guide rail 3 is fixedly connected to the worm gear housing 1. A curved slider 4 is slidably connected to the curved guide rail 3. The curved slider 4 extends along the extension trajectory of the curved guide rail 3. A movable mounting panel 5 that follows the movement is provided on the movable mounting panel 5. The movable mounting panel 5 has a mounting hole 6 and a threaded hole 7 that passes through the movable mounting panel and the curved slider. A set screw 8 with its end abutting against the worm gear housing is internally threaded in the threaded hole 7.
[0017] Furthermore, the worm gear housing 2 is located above the worm wheel housing 1. The outer wall of the worm wheel housing 1 is provided with a first positioning hole (not shown), a second positioning hole (not shown), and a third positioning hole (not shown). The first positioning hole is located on the left side of the worm wheel housing 1, the second positioning hole is located on the right side of the worm wheel housing 1, and the third positioning hole is located at the bottom of the worm wheel housing 1. The first positioning hole and the second positioning hole are coaxially arranged, and the axes of the first positioning hole and the second positioning hole extend horizontally to the left and right. The third positioning hole is located in the middle of the first positioning hole and the second positioning hole, and the axis of the third positioning hole extends vertically up and down. The end of the set screw 8 is embedded in the first positioning hole, the second positioning hole, or the third positioning hole.
[0018] Furthermore, the extended circumference of the curved guide rail 3 is 180° to 270°.
[0019] Furthermore, the outer end of the threaded hole 7 has a countersunk hole (not marked).
[0020] Furthermore, the mounting holes 6 are arranged in a rectangular array on the movable mounting panel 5.
[0021] In this embodiment, the top of the worm gear reducer housing is also provided with mounting holes. When the required position of the mounting hole on the other side is on the left side of the worm gear reducer housing, the set screw 8 can be loosened first, so that the crank slider 4 carrying the movable mounting panel 5 can slide on the curved guide rail 3 to change its position circumferentially until the outer end face of the movable mounting panel 5 is horizontal to the left. At this time, the set screw 8 is tightened again, and the end of the set screw 8 can be embedded in the first positioning hole to limit the position of the movable mounting panel 5. When the required position of the mounting hole on the other side is on the right side of the worm gear reducer housing, the set screw 8 can be loosened first, so that the crank slider 4 carrying the movable mounting panel 5 can slide on the curved guide rail 3 to change its position circumferentially until the outer end face of the movable mounting panel 5 is horizontal to the left. The movable mounting panel 5 slides on the guide rail 3 to change its position circumferentially until the outer end face of the movable mounting panel 5 is horizontal to the right. At this time, tighten the set screw 8. The end of the set screw 8 can be embedded in the second positioning hole to limit the movable mounting panel 5. When the required position of the mounting hole on the other side is at the bottom of the worm gear reducer housing, the set screw 8 can be loosened first so that the crank slider 4 can slide on the crank guide rail 3 to change its position circumferentially until the outer end face of the movable mounting panel 5 is vertically downward. At this time, tighten the set screw 8. The end of the set screw 8 can be embedded in the third positioning hole to limit the movable mounting panel 5.
[0022] The curved guide rail 3, in conjunction with the curved slider 4, serves as a sliding guide for the movable mounting panel 5 when it rotates circumferentially relative to the worm gear box 1.
[0023] The mounting hole 6 is provided for connection with external components.
[0024] The reducer housing involved in this utility model achieves arbitrary switching between left, right, and down positions by precision machining the end face of the movable mounting panel used for external connection, eliminating the need for two machining surfaces, indirectly reducing machining time and cost. It has a novel structure, is easy to install, has complete overall functions, and is highly practical.
[0025] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.
[0026] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A speed reducer housing, comprising a worm gear reducer housing, the worm gear reducer housing including a cylindrical worm gear housing and a cylindrical worm housing, the worm housing being connected to the worm gear housing, the axis of the worm gear housing being perpendicular to the axis of the worm housing, characterized in that: The outer wall of the worm gear housing is provided with a curved guide rail extending circumferentially. The curved guide rail extends circumferentially around the central axis of the worm gear housing and is fixedly connected to the worm gear housing. A curved slider is slidably connected to the curved guide rail and extends along the extension trajectory of the curved guide rail. The curved slider is provided with a movable mounting panel that follows the movement. The movable mounting panel has a mounting hole and a threaded hole that passes through the movable mounting panel and the curved slider. A set screw with its end abutting against the worm gear housing is threaded into the threaded hole.
2. The reducer housing according to claim 1, characterized in that: The worm gear housing is located above the worm wheel housing. The outer wall of the worm wheel housing is provided with a first positioning hole, a second positioning hole, and a third positioning hole. The first positioning hole is located on the left side of the worm wheel housing, the second positioning hole is located on the right side of the worm wheel housing, and the third positioning hole is located at the bottom of the worm wheel housing. The first positioning hole and the second positioning hole are coaxial, and the axes of the first positioning hole and the second positioning hole extend horizontally to the left and right. The third positioning hole is located in the middle of the first positioning hole and the second positioning hole, and the axis of the third positioning hole extends vertically up and down. The end of the set screw is embedded in the first positioning hole, the second positioning hole, or the third positioning hole.
3. The reducer housing according to claim 1 or 2, characterized in that: The extended circumference of the curved guide rail is 180° to 270°.
4. The reducer housing according to claim 3, characterized in that: The outer end of the threaded hole has a countersunk hole.
5. The reducer housing according to claim 1, characterized in that: The mounting holes are arranged in a rectangular array on the movable mounting panel.