Stud screw rod planetary speed reducing mechanism

Abstract

The utility model discloses a stud screw rod planetary speed reduction mechanism, and relates to the technical field of planetary speed reduction. The stud and screw rod planetary reducing mechanism comprises a screw rod and an inner spiral gear ring, the screw rod is arranged in the inner spiral gear ring in a penetrating mode, retainers are rotationally connected to the upper side and the lower side of the inner spiral gear ring, rollers are rotationally connected to the position, located between the two retainers, in the inner spiral gear ring, and the rollers are distributed in the inner spiral gear ring in a circular array mode. An inner straight gear ring is fixedly connected to the interior of the inner spiral gear ring; the outer wall of the lead screw is meshed with the outer wall of the pin roller, and the outer wall of the pin roller is meshed with the inner side wall of the inner spiral gear ring. The screw rod, the pin roller, the inner spiral gear ring, the inner straight gear ring and the like are adopted to replace a sun gear, a planet gear and an inner gear ring in a traditional planetary speed reducing mechanism, so that the planetary speed reducing mechanism can rotate in the traditional planetary speed reducing mechanism and can also move in the axial direction; the limitation that a traditional planetary speed reduction mechanism can only transmit radial force and achieve rotation is overcome.

Description

Technical Field

[0001] This utility model relates to the field of planetary reduction technology, and in particular to a studded screw planetary reduction mechanism. Background Technology

[0002] A planetary gear reducer is an important mechanical transmission device, mainly composed of a sun gear, planet gears, a planet carrier, and a gear ring (internal or external). The sun gear is located at the center, and the planet gears rotate around it. The planet gears also mesh with the gear ring, and the planet carrier supports the planet gears and drives their revolution. Its working principle is similar to the motion of the planets in our solar system, hence the name planetary gear reducer.

[0003] Traditional planetary reduction mechanisms are gear meshing types, which can only transmit radial force to achieve rotation, but cannot transmit axial force or perform axial movement, thus limiting their application scenarios. Therefore, we propose a studded screw planetary reduction mechanism to solve the problems mentioned in the background technology. Utility Model Content

[0004] The purpose of this invention is to provide a planetary speed reduction mechanism with a stud screw, which solves the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a planetary speed reduction mechanism with a stud screw, comprising a screw and an inner helical gear ring, wherein the screw is inserted inside the inner helical gear ring, and retainers are rotatably connected to both the upper and lower sides of the inner helical gear ring, and rollers are rotatably connected inside the inner helical gear ring and located between the two retainers, the rollers being distributed in a circular array inside the inner helical gear ring, and an inner spur gear ring is fixedly connected inside the inner helical gear ring;

[0006] The outer wall of the lead screw meshes with the outer wall of the roller, the outer wall of the roller meshes with the inner side wall of the inner helical gear ring, and the outer wall of the roller meshes with the outer wall of the inner spur gear ring.

[0007] Preferably, the inner spur gear ring is disposed on the upper and lower sides of the inner helical gear ring, and the outer wall of the cage abuts against the inner side wall of the inner spur gear ring.

[0008] Preferably, the inner spiral gear ring and the inner straight gear ring are threaded together by internal hexagonal bolts, and the inner straight gear ring is fixedly connected to the inner spiral gear ring by the internal hexagonal bolts.

[0009] Preferably, the inner helical gear ring has a thread on its inner side.

[0010] Compared with related technologies, the studded screw planetary reduction mechanism provided by this utility model has the following beneficial effects:

[0011] 1. This utility model provides a studded screw planetary reduction mechanism, which replaces the sun gear, planet gear, and internal gear ring in the traditional planetary reduction mechanism with a screw, roller, internal helical gear ring, and internal spur gear ring. This utility model can not only realize the rotation in the traditional planetary reduction mechanism, but also realize axial movement, overcoming the limitation of the traditional planetary reduction mechanism that can only transmit radial force and realize rotation, and greatly expanding its application scenarios.

[0012] 2. This utility model provides a studded screw planetary reduction mechanism, which inherits the advantages of traditional planetary reduction mechanisms in terms of small size and light weight. It integrates the functions of axial movement and rotation into a relatively compact structure, which is easy to process, low in cost, has a large force capacity, and is widely applicable. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a front view of the present invention;

[0015] Figure 3 For the present utility model Figure 2 Schematic diagram of the cross-section along the AA direction;

[0016] Figure 4 This is a top view of the present invention.

[0017] In the diagram: 1. Lead screw; 2. Cage; 3. Internal helical gear ring; 4. Roller; 5. Internal spur gear ring; 6. Socket headstock bolt. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a planetary speed reduction mechanism with a stud screw, including a screw 1 and an inner helical gear ring 3. The screw 1 is inserted inside the inner helical gear ring 3. The upper and lower sides of the inner helical gear ring 3 are rotatably connected to the retainers 2. The inner helical gear ring 3 is rotatably connected to the rollers 4 located between the two retainers 2. The rollers 4 are distributed in a circular array inside the inner helical gear ring 3. The inner straight gear ring 5 is fixedly connected inside the inner helical gear ring 3.

[0020] The outer wall of the lead screw 1 meshes with the outer wall of the roller 4, the outer wall of the roller 4 meshes with the inner side wall of the inner helical gear ring 3, and the outer wall of the roller 4 meshes with the outer wall of the inner spur gear ring 5.

[0021] In this embodiment, the lead screw 1 is driven to rotate by an external force. The rotation of the lead screw 1 drives the roller 4 to rotate. The rotation of the roller 4 drives the inner helical gear ring 3 to move axially. At the same time, the rotation of the roller 4 drives the inner spur gear ring 5 to rotate. Since the inner helical gear ring 3 and the inner spur gear ring 5 are fixed together, the rotation of the lead screw 1 ultimately drives the rotation and axial movement of the inner helical gear ring 3.

[0022] The inner spur gear 5 is located on the upper and lower sides of the inner helical gear 3, and the outer wall of the retainer 2 abuts against the inner side wall of the inner spur gear 5.

[0023] The inner spiral gear ring 3 and the inner straight gear ring 5 are connected by internal hexagonal bolts 6 through internal hexagonal bolts 6. The inner straight gear ring 5 is fixedly connected to the inner spiral gear ring 3 through internal hexagonal bolts 6.

[0024] In this embodiment, the internal spur gear ring 5 and the internal helical gear ring 3 are installed using the internal hex bolt 6, which is a simple and reliable installation method. The internal helical gear ring 3 and the internal spur gear ring 5 are fixed together. The rotation of the lead screw 1 drives the roller 4 to rotate. The rotation of the roller 4 drives the internal spur gear ring 5 to rotate, which in turn drives the rotation and axial movement of the internal helical gear ring 3.

[0025] The inner helical gear ring 3 has a thread on its inner side.

[0026] In this embodiment, the inner side of the inner helical gear ring 3 is provided with threads so that the outer wall of the roller 4 meshes with the inner side wall of the inner helical gear ring 3, and the rotation of the roller 4 drives the inner helical gear ring 3 to move axially.

[0027] Working principle: The lead screw 1 is driven to rotate by an external force. The rotation of the lead screw 1 drives the roller 4 to rotate. The rotation of the roller 4 drives the inner helical gear ring 3 to move axially. At the same time, the rotation of the roller 4 drives the inner spur gear ring 5 to rotate. Since the inner helical gear ring 3 and the inner spur gear ring 5 are fixed together, the rotation of the lead screw 1 ultimately drives the rotation and axial movement of the inner helical gear ring 3.

[0028] 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. A stud screw planetary reduction mechanism, comprising a screw rod (1) and an inner spiral gear ring (3), the screw rod (1) is inserted into the inner spiral gear ring (3), characterized in that: The upper and lower sides of the inner spiral gear ring (3) are rotationally connected with the cage (2), the inner spiral gear ring (3) is rotationally connected with the roller (4) between the two cages (2), the roller (4) is distributed in a circular array in the inner spiral gear ring (3), and the inner side of the inner spiral gear ring (3) is fixedly connected with the inner straight gear ring (5). The outer wall of the screw rod (1) is engaged with the outer wall of the roller (4), the outer wall of the roller (4) is engaged with the inner side wall of the inner spiral gear ring (3), and the outer wall of the roller (4) is engaged with the outer wall of the inner straight gear ring (5).

2. A stud screw planetary reduction mechanism according to claim 1 wherein: The inner straight gear ring (5) is arranged on the upper and lower sides of the inner spiral gear ring (3), and the outer wall of the cage (2) abuts against the inner side wall of the inner straight gear ring (5).

3. A stud screw planetary reduction mechanism according to claim 1 wherein: The inner wall of the inner spiral gear ring (3) and the inner straight gear ring (5) is threadedly connected with the inner hexagonal bolt (6), and the inner straight gear ring (5) is fixedly connected with the inner spiral gear ring (3) through the inner hexagonal bolt (6).

4. A stud screw planetary reduction mechanism according to claim 1 wherein: The inner side of the inner spiral gear ring (3) is provided with threads.

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