Internal spiral gear ring
By setting an internal helix on the inner wall of the gear ring and connecting it with the screw rotation thread, the problem that traditional internal gear rings cannot simultaneously achieve axial movement and radial rotation is solved, providing a compact and low-cost internal helical gear ring suitable for various application scenarios.
Patent Information
- Application Number
- CN202423137899.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Traditional internal gear rings cannot achieve axial movement and radial rotation simultaneously, and adding other structures would lead to complex structures and high costs.
An internal helix is provided on the inner side wall of the gear ring, and the internal helix is connected to the lead screw through a rotating threaded connection to achieve the combination of axial movement and rotation.
It achieves both rotation and axial movement on the same component, with a compact structure, low cost, and applicability to various industries and scenarios.
Smart Images

Figure CN223498599U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear ring technology, and in particular to an internal helical gear ring. Background Technology
[0002] A gear ring is a ring-shaped mechanical part with teeth. It is shaped like a ring, with a series of teeth distributed along its edge (either the outer or inner edge). These teeth mesh with other gears or transmission components to achieve functions such as power transmission, speed change, or direction of motion conversion.
[0003] Traditional internal gear rings have internal spur or helical teeth machined on them, allowing only rotational motion and no axial movement. To achieve both axial and radial rotation, additional structures are needed on top of the traditional internal gear ring, resulting in a more complex structure, larger space requirements, and higher costs. Utility Model Content
[0004] The purpose of this invention is to provide an internal helical gear ring that solves the technical problems mentioned in the background section.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal helical gear ring, comprising a gear ring, wherein an internal helix is uniformly arranged on the inner sidewall of the gear ring, and a lead screw is inserted inside the gear ring, wherein the lead screw is rotatably threadedly connected to the inner sidewall of the gear ring through the internal helix, thereby enabling axial movement.
[0006] Preferably, the outer wall of the gear ring is provided with teeth, which are distributed in a circular array on the outer side of the gear ring with the center of the gear ring as the center.
[0007] Preferably, the teeth are straight teeth or oblique teeth.
[0008] Preferably, the toothed ring is provided with connectors at both ends.
[0009] Compared with related technologies, the internal helical gear ring provided by this utility model has the following beneficial effects:
[0010] 1. This utility model provides an internal helical gear ring, which is formed by machining an internal helix on the gear ring. The pitch and number of helix heads of the internal helix can be adjusted and designed according to the required transmission efficiency and speed. By adjusting the angle and depth of the helix, it can withstand different loads and meet the requirements of different application scenarios. During transmission, the internal helix part of the internal helical gear ring meshes with the lead screw product, which can realize both rotation and axial movement.
[0011] 2. This utility model provides an internal helical gear ring, which ingeniously combines commonly used helical technology with gear rings to form an internal helical gear ring. It can withstand large loads, is technically mature, easy and simple to process, low in cost, and has a compact structure. It can realize rotation and axial movement at the same time and can be applied in different industries and application scenarios, with wide applicability. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 2 This is the front view of the present invention;
[0014] Figure 3 For the present utility model Figure 2 Schematic diagram of the cross-section along the AA direction.
[0015] In the diagram: 1. Gear ring; 2. Tooth; 3. Internal helix. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0017] Please see Figures 1-3 This utility model provides a technical solution: an internal helical gear ring, including a gear ring 1, with an internal helix 3 evenly arranged on the inner sidewall of the gear ring 1, and a lead screw inserted inside the gear ring 1. The lead screw is rotatably threadedly connected to the inner sidewall of the gear ring 1 through the internal helix 3, and can move axially.
[0018] In this embodiment, an inner helix 3 is machined on the gear ring 1 to form an inner helical gear ring. The pitch and number of helix heads of the inner helix 3 can be adjusted and designed according to the required transmission efficiency and speed. By adjusting the angle and depth of the helix, different loads can be borne, which can meet the requirements of different application scenarios. During transmission, the inner helix part of the inner helix gear ring meshes with the lead screw product, which can realize both rotation and axial movement.
[0019] The internal helix of this invention is similar to the thread on a regular bolt. It cleverly combines commonly used helical technology with a gear ring to form an internal helical gear ring, which can withstand large loads and simultaneously achieve rotation and axial movement. It can be applied in different industries and application scenarios.
[0020] Among them, the outer wall of the gear ring 1 is provided with teeth 2, and the teeth 2 are distributed in a circular array on the outside of the gear ring 1 with the center of the gear ring 1 as the center.
[0021] Among them, tooth 2 is a straight tooth or an oblique tooth.
[0022] In this embodiment, the teeth (which can be straight or helical) provided on the outer wall of the gear ring 1 can mesh with other gears or transmission components. When the gear ring 1 moves axially, if there is relative movement with the external meshing component, it can also achieve rotational movement (radial rotation), thereby achieving a compound motion effect of axial movement and radial rotation on the same component.
[0023] Connectors are provided at both ends of the gear ring 1.
[0024] Working principle: The inner helix 3 is machined on the gear ring 1 to form an inner helical gear ring. The pitch and number of helical heads of the inner helix 3 can be adjusted and designed according to the required transmission efficiency and speed. By adjusting the angle and depth of the inner helix 3, different loads can be borne to meet the requirements of different application scenarios. When the lead screw rotates under the drive of an external power source such as a motor, the gear ring 1 meshes with the lead screw through the inner helix 3, which can realize both rotation and axial movement.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An internal helical gear ring, comprising a gear ring (1), characterized in that: The inner wall of the gear ring (1) is uniformly provided with an inner spiral (3), and a lead screw is inserted inside the gear ring (1). The lead screw is rotatably threaded to the inner wall of the gear ring (1) through the inner spiral (3) to move axially. The outer wall of the toothed ring (1) is provided with teeth (2), and the teeth (2) are arranged in a circular array on the outside of the toothed ring (1) with the center of the toothed ring (1) as the center.
2. The internal helical gear ring according to claim 1, characterized in that: The teeth (2) are straight teeth or oblique teeth.
3. The internal helical gear ring according to claim 1, characterized in that: The toothed ring (1) has connectors at both ends.