High-speed-ratio cycloidal-pin wheel speed reducer

Abstract

The utility model discloses a high-speed-ratio cycloidal pin wheel speed reducer, which relates to the technical field of speed reducers, and comprises a mounting rack, an outer main body mounting cylinder is fixedly mounted on one side of the mounting rack, a plurality of cycloidal discs are meshed in the outer main body mounting cylinder, a driving shaft is meshed at the center of each cycloidal disc, and the driving shaft is connected with the outer main body mounting cylinder. A protection disc is fixedly mounted on one side of the outer body mounting cylinder, bracket clamping grooves are symmetrically formed in the lower end of one side of the mounting frame, and arc-shaped brackets are movably connected into the bracket clamping grooves in a clamped mode. According to the utility model, the arc-shaped bracket is used for supporting the bottom ends of the outer main body mounting cylinder and the protection disc, so that an assembling worker can easily and conveniently adjust the circle center of the outer main body mounting cylinder and the circle center of the protection disc to be on the same straight line, thereby facilitating the subsequent connecting and assembling operation; and the efficiency of assembling the high-speed-ratio cycloidal-pin wheel speed reducer by an assembling worker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a large-speed-ratio cycloid pinwheel reducer. Background Art

[0002] The cycloid pinwheel reducer is a highly efficient and compact transmission device, which is widely used in various industrial fields. It works based on the principle of cycloid pin gear meshing and planetary transmission. It is also commonly called a planetary cycloid reducer. The cycloid pinwheel reducer has the characteristics of small size and compact structure. It has a reasonable design, simple disassembly and assembly, and is easy to maintain.

[0003] For example, Chinese patent publication No. CN110630720B discloses a cycloid gear reducer, which uses two eccentric cycloid gears to form a 2K-H type combined gear train to achieve deceleration, and the cycloid gear tooth profile is formed by the composite splicing of the cycloid and the involute.

[0004] When assembling an existing large-speed ratio cycloidal gear reducer, it is necessary to initially align the centers of the mounting plate, protective plate, sealing plate and other components on the same straight line, and then use bolts to further fix them. However, due to the large weight and volume of the mounting plate, protective plate and sealing plate, it is not convenient for assembly workers to perform the initial docking operation, which affects the factory assembly of the existing large-speed ratio cycloidal gear reducer. Summary of the invention

[0005] The purpose of the utility model is to solve the problem in the prior art that the installation disk, the protection disk and the sealing disk are heavy and bulky, which makes it inconvenient for users to perform initial docking, thereby affecting the factory assembly of the existing large-speed ratio cycloidal gear reducer, and to propose a large-speed ratio cycloidal pinwheel reducer.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a large speed ratio cycloidal pinwheel reducer, including a mounting frame, an outer main body mounting cylinder is fixedly mounted on one side of the mounting frame, a plurality of cycloidal disks are meshed inside the outer main body mounting cylinder, a driving shaft is meshed at the center of the cycloidal disk, a protective disk is fixedly mounted on one side of the outer main body mounting cylinder, a bracket slot is symmetrically opened at the lower end of one side of the mounting frame, and an arc-shaped bracket is movably clamped inside the bracket slot.

[0007] Preferably, a plurality of circular needle rollers are annularly rotatably clamped inside the outer main body mounting cylinder, and the plurality of circular needle rollers are arranged between the outer main body mounting cylinder and the cycloid disk.

[0008] Preferably, a plurality of transmission grooves are annularly opened on one side of a plurality of the cycloid disks, a transmission shaft is movably engaged inside the transmission groove, and the other end of the transmission shaft is fixedly connected to an output shaft.

[0009] Preferably, a through hole is opened at the center of the protection plate, and one end of the driving shaft is arranged inside the through hole.

[0010] Preferably, a positioning fixture is movably engaged at one end of the outer side of the arc-shaped bracket, and a positioning circular hole is provided inside one end of the positioning fixture.

[0011] Preferably, a long positioning rod is movably connected inside the positioning circular hole.

[0012] Preferably, both ends of the arc-shaped bracket are fixedly connected with adjustment protrusions.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, the bottom ends of the outer body mounting cylinder and the protective disk are supported by an arc-shaped bracket, so that the assembly workers can easily and conveniently adjust the center of the outer body mounting cylinder and the center of the protective disk to the same straight line, thereby facilitating subsequent connection and assembly operations and improving the efficiency of the assembly workers in assembling the large speed ratio cycloid pinwheel reducer.

[0015] 2. In the utility model, the outer body mounting cylinder and the protective disk are limited by the cooperation between the positioning long rod and the positioning clamp. When the outer body mounting cylinder and the protective disk are adjusted, the assembler uses the positioning long rod to sequentially pass through the mounting circular hole on the protective disk, the positioning circular hole, the mounting circular hole on the outer body mounting cylinder and the mounting circular hole on the mounting frame to avoid rotational offset between the protective disk and the outer body mounting cylinder, thereby further improving the efficiency of assembling the large speed ratio cycloid pinwheel reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a large speed ratio cycloid pinwheel reducer is proposed for the utility model;

[0017] Figure 2 The utility model provides a schematic diagram of the connection relationship between the mounting frame and the outer body mounting cylinder in a large speed ratio cycloid pinwheel reducer;

[0018] Figure 3 A schematic diagram of the connection relationship between the outer main body mounting cylinder and the cycloid disk in a large speed ratio cycloid pinwheel reducer proposed by the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of the connection relationship between the cycloid disk and the transmission shaft in a large speed ratio cycloid pinwheel reducer;

[0020] Figure 5 The utility model provides a three-dimensional structural schematic diagram of a positioning clamp in a large speed ratio cycloid pinwheel reducer.

[0021] Legend: 1. Mounting frame; 11. Bracket slot; 2. Outer body mounting cylinder; 21. Circular roller needle; 3. Cycloidal disk; 31. Transmission slot; 32. Transmission shaft; 33. Output shaft; 4. Drive shaft; 5. Protection disk; 51. Through hole; 6. Arc bracket; 61. Positioning card; 62. Positioning circular hole; 63. Positioning long rod; 64. Adjustment bump. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Embodiment 1

[0024] like Figure 1-4 As shown, the utility model provides a large-speed ratio cycloidal pinwheel reducer, including a mounting frame 1, an outer main body mounting cylinder 2 is fixedly mounted on one side of the mounting frame 1, a plurality of cycloidal disks 3 are meshed inside the outer main body mounting cylinder 2, a driving shaft 4 is meshed at the center of the cycloidal disk 3, a protective disk 5 is fixedly mounted on one side of the outer main body mounting cylinder 2, a bracket clamping groove 11 is symmetrically opened at the lower end of one side of the mounting frame 1, an arc bracket 6 is movably clamped inside the bracket clamping groove 11, a plurality of circular needle rollers 21 are annularly rotatably clamped inside the outer main body mounting cylinder 2, the plurality of circular needle rollers 21 are arranged between the outer main body mounting cylinder 2 and the cycloidal disk 3, a plurality of transmission grooves 31 are annularly opened on one side of the plurality of cycloidal disks 3, a transmission shaft 32 is movably clamped inside the transmission groove 31, the other end of the transmission shaft 32 is fixedly connected to the output shaft 33, a through hole 51 is opened at the center of the protective disk 5, and one end of the driving shaft 4 is arranged inside the through hole 51.

[0025] The specific settings and functions of this embodiment are described in detail below. When assembling the large-speed-ratio cycloidal pinwheel reducer, first clamp the two ends of the arc-shaped bracket 6 inside the bracket slot 11, first place the outer main body mounting tube 2 on the upper end of the arc-shaped bracket 6, and then place the protective plate 5 on the upper end of the arc-shaped bracket 6, and adjust the center of the circle of the outer main body mounting tube 2 and the center of the circle of the protective plate 5 to the same straight line, so as to facilitate subsequent connection and assembly operations and improve the efficiency of assembly workers in assembling the large-speed-ratio cycloidal pinwheel reducer. In addition, when disassembling and repairing the outer main body mounting tube 2, the arc-shaped bracket 6 can support the protective plate 5 and the outer main body mounting tube 2 to avoid the situation in which the protective plate 5 and the outer main body mounting tube 2 fall directly to the ground after the fixing bolts are removed, causing their outer surfaces to be damaged by impact. Embodiment 2

[0026] like Figure 2 and Figure 5 As shown, a bracket slot 11 is symmetrically provided at the lower end of one side of the mounting frame 1, an arc-shaped bracket 6 is movably connected inside the bracket slot 11, a positioning card 6 is movably connected to one end of the outer side of the arc-shaped bracket 6, a positioning circular hole 62 is provided inside one end of the positioning card 61, a positioning long rod 63 is movably connected inside the positioning circular hole 62, and adjustment protrusions 64 are fixedly connected to both ends of the arc-shaped bracket 6.

[0027] The effect achieved by the entire embodiment is that before placing the protection plate 5, the positioning clip 61 is clamped on one end of one side of the arc-shaped bracket 6. After placing the protection plate 5, the assembly worker passes the positioning long rod 63 through the mounting circular hole on the protection plate 5, the positioning circular hole 62, the mounting circular hole on the outer main body mounting cylinder 2 and the mounting circular hole on the mounting frame 1 in sequence to avoid rotational offset between the protection plate 5 and the outer main body mounting cylinder 2, thereby further improving the efficiency of assembling the large speed ratio cycloid pinwheel reducer.

[0028] The method of use and working principle of the device: When assembling the large-speed ratio cycloid pinwheel reducer, first grasp the adjustment protrusion 64, clamp the two ends of the arc-shaped bracket 6 into the inside of the bracket clamping groove 11, first place the outer body mounting tube 2 on the upper end of the arc-shaped bracket 6, and then place the protective plate 5 on the upper end of the arc-shaped bracket 6, and adjust the center of the circle of the outer body mounting tube 2 and the center of the circle of the protective plate 5 to be on the same straight line; in addition, before placing the protective plate 5, clamp the positioning clamp 61 to one end of one side of the arc-shaped bracket 6, and after placing the protective plate 5, the assembler will pass the positioning long rod 63 through the mounting circular hole on the protective plate 5, the positioning circular hole 62, the mounting circular hole on the outer body mounting tube 2, and the mounting hole on the mounting bracket 1 in sequence. Circular hole, to avoid rotational deviation between the protection disk 5 and the outer main body mounting tube 2, after initially inserting the fixing bolt into the mounting circular hole, pull out the positioning long rod 63, remove the positioning clamp 61, install the last positioning bolt in the mounting circular hole, rotate the positioning nut at the other end of the six positioning bolts in turn, and finally install the high-power drive motor on one side of the drive shaft 4 to drive the large-speed ratio cycloidal pinwheel reducer to operate at high speed; when the large-speed ratio cycloidal pinwheel reducer is working, the high-power drive motor drives the drive shaft 4 to rotate, and the drive shaft 4 drives the two cycloidal disks 3 to rotate inside the outer main body mounting tube 2, and the two cycloidal disks 3 drive the output shaft 33 to rotate by driving the transmission shaft 32 to complete the transmission task.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A high-speed ratio cycloid pinwheel reducer, comprising a mounting frame (1), characterized in that: An outer main body mounting cylinder (2) is fixedly mounted on one side of the mounting frame (1), a plurality of cycloid discs (3) are meshed inside the outer main body mounting cylinder (2), a driving shaft (4) is meshed at the center of the cycloid disc (3), a protection disc (5) is fixedly mounted on one side of the outer main body mounting cylinder (2), a bracket slot (11) is symmetrically provided at the lower end of one side of the mounting frame (1), and an arc-shaped bracket (6) is movably engaged inside the bracket slot (11).

2. A high speed ratio cycloid pinwheel reducer according to claim 1, characterized in that: A plurality of circular needle rollers (21) are annularly rotatably clamped inside the outer body mounting cylinder (2), and the plurality of circular needle rollers (21) are arranged between the outer body mounting cylinder (2) and the cycloid disk (3).

3. The large speed ratio cycloid pinwheel reducer according to claim 1, characterized in that: A plurality of transmission grooves (31) are provided in an annular shape on one side of the plurality of cycloid disks (3), a transmission shaft (32) is movably engaged inside the transmission groove (31), and an output shaft (33) is fixedly connected to the other end of the transmission shaft (32).

4. The large speed ratio cycloid pinwheel reducer according to claim 1, characterized in that: A through hole (51) is provided at the center of the protection plate (5), and one end of the drive shaft (4) is arranged inside the through hole (51).

5. The large speed ratio cycloid pinwheel reducer according to claim 4, characterized in that: A positioning clamp (61) is movably engaged at one end of the outer side of the arc-shaped bracket (6), and a positioning circular hole (62) is provided inside one end of the positioning clamp (61).

6. A large speed ratio cycloid pinwheel reducer according to claim 5, characterized in that: A long positioning rod (63) is movably engaged inside the positioning circular hole (62).

7. The large speed ratio cycloid pinwheel reducer according to claim 1, characterized in that: Adjustment protrusions (64) are fixedly connected to both ends of the arc-shaped bracket (6).

Images