A four-stage planetary transmission reducer

Abstract

The utility model belongs to lithium electricity cutting machine technical field, especially relates to a four -stage planetary transmission speed reducer. Including installation cylinder seat, input shaft, output shaft and sun gear no. 1, the both ends of installation cylinder seat rotatory installation have input shaft with output shaft, the sun gear no. 1 is set up on input shaft, planetary disc holder and inner toothed ring, installation cylinder seat is installed with inner toothed ring, the inner toothed ring is engaged and is stacked with four -stage transmission planetary disc holder, and first -stage planetary disc holder is engaged with transmission connection with sun gear no. 1, fourth -stage planetary disc holder is connected with output shaft. The utility model discloses through planetary transmission speed reducer can reduce the high speed of lithium electricity cutting machine's motor output to low speed, has realized multistage speed reduction and greater speed reduction ratio.

Description

Technical Field

[0001] This utility model belongs to the technical field of lithium battery cutting machine, and specifically relates to a four-stage planetary transmission reducer. Background Technology

[0002] A lithium-ion battery cutting machine is a cutting tool powered by lithium batteries, primarily used for cutting hard objects such as metal profiles. It has wide applications in the construction and manufacturing industries, as well as railway rail maintenance. Existing lithium-ion battery cutting machines require a reducer to slow down the motor's output power before transmitting it to the oscillating mechanism, enabling the machine to perform oscillating cutting.

[0003] However, existing reducer structures are mostly gearbox structures with large gear sets. Their assembly volume is large and their structure is bulky, making them inconvenient to integrate into cutting machines. Moreover, they cannot achieve multi-stage speed reduction, resulting in a small reduction ratio, and they cannot be directly applied to swing mechanisms. Utility Model Content

[0004] The purpose of this invention is to provide a four-stage planetary transmission reducer. This invention can reduce the high speed output of the motor of a lithium battery cutting machine to a low speed through a planetary transmission reducer, realizing multi-stage speed reduction and a large reduction ratio, and providing driving force for the swing mechanism. Moreover, through the arrangement of the planetary disk carrier, internal gear ring and sun gear, the overall assembly space can be reduced, achieving the advantages of light weight, small size and smooth transmission.

[0005] To solve the above-mentioned technical problems, this utility model provides a four-stage planetary transmission reducer, comprising:

[0006] Install sleeve base;

[0007] An input shaft, an output shaft, and a sun gear; the input shaft and the output shaft are rotatably mounted at both ends of the mounting base, and the sun gear is sleeved on the input shaft;

[0008] The planetary carrier and the internal gear ring are provided. The internal gear ring is installed in the mounting sleeve. The planetary carrier with four stages of transmission is meshed and stacked on the internal gear ring. The first stage of the planetary carrier is meshed and connected to the sun gear in one phase. The fourth stage of the planetary carrier is connected to the output shaft.

[0009] Preferably, the planetary disk carrier includes: a planetary disk holder, planetary gears, and a second sun gear; a plurality of planetary gears are circumferentially mounted on one side of the planetary disk holder, wherein the second sun gear is axially mounted on the other side of the first to third stage planetary disk holders; in the first stage planetary disk carrier, the planetary gears are meshed and connected to the first sun gear and the internal gear ring respectively; in the second to fourth stage planetary disk carriers, the planetary gears are meshed and connected to the second sun gear and the internal gear ring respectively.

[0010] Preferably, each planetary disk has four planetary gears arranged circumferentially.

[0011] Preferably, the mounting base includes: a cylindrical shell, end caps, and partition blocks; the end caps are detachably locked at both ends of the cylindrical shell by locking bolts, and a plurality of partition blocks are provided circumferentially inside the cylindrical shell to divide the inner cavity of the cylindrical shell into upper and lower mounting cavities.

[0012] Preferably, it also includes rolling bearings and retaining rings; two rolling bearings are stacked and assembled inside each end cover, and the two rolling bearings are stopped and limited by the retaining rings, which are embedded in the end cover.

[0013] Preferably, it also includes slots, and a plurality of slots are provided circumferentially on the inner wall of the cylindrical shell.

[0014] Preferably, it also includes locking blocks, and a plurality of locking blocks are provided circumferentially on the outer wall of the internal gear ring, and the locking blocks are engaged and connected with the locking groove.

[0015] Preferably, two internal gear rings are provided, and the two internal gear rings are respectively assembled in the upper and lower mounting cavities, and each internal gear ring is limited and pressed by the end cap and the partition block.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This invention uses a planetary transmission reducer to reduce the high speed of the motor output of a lithium battery cutting machine to a low speed, achieving multi-stage speed reduction and a large reduction ratio, thus providing driving force for the swing mechanism. Moreover, the arrangement of the planetary disk carrier, internal gear ring, and sun gear can reduce the overall assembly space, achieving the advantages of light weight, small size, and smooth transmission. Attached Figure Description

[0018] Fig. 1 This is a three-dimensional structural diagram of a four-stage planetary transmission reducer according to this utility model.

[0019] Fig. 2 This is a structural cross-sectional view of a four-stage planetary transmission reducer according to this utility model.

[0020] Fig. 3 This is a three-dimensional structural diagram of the internal gear ring and planetary disk carrier in this utility model.

[0021] Fig. 4 This is a structural cross-sectional view of the internal gear ring and planetary disk carrier in this utility model.

[0022] Fig. 5 This is a three-dimensional structural diagram of the arrangement of the two internal gear rings in this utility model.

[0023] Fig. 6 This is a structural diagram of the four-stage planetary disk frame arrangement in this utility model.

[0024] In the diagram: 1-Mounting base, 11-Cylinder shell, 12-End cover, 13-Separator block, 14-Rolling bearing, 15-Stop retaining ring, 16-Slot, 17-Slot block, 2-Input shaft, 3-Output shaft, 4-Sun gear one, 5-Planetary disk carrier, 51-Planetary disk holder, 52-Planetary gear, 53-Sun gear two, 6-Internal gear ring. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0026] like Figs. 1-6 As shown, this utility model embodiment specifically provides a four-stage planetary transmission reducer, including:

[0027] Mounting sleeve base 1;

[0028] Input shaft 2, output shaft 3 and sun gear 4; the input shaft 2 and output shaft 3 are rotatably mounted on both ends of the mounting base 1, and the sun gear 4 is sleeved on the input shaft 2;

[0029] The planetary carrier 5 and the internal gear ring 6 are mounted in the mounting cylinder 1. The internal gear ring 6 is meshed and stacked on the internal gear ring 6. The first-stage planetary carrier 5 is meshed and connected to the sun gear 4, and the fourth-stage planetary carrier 5 is connected to the output shaft 3.

[0030] The planetary carrier 5 includes a planetary disk holder 51, planetary gears 52, and a second sun gear 53. Several planetary gears 52 are circumferentially mounted on one side of the planetary disk holder 51, while the second sun gear 53 is axially mounted on the other side of the first to third stage planetary disk holders 51. In the first stage planetary carrier 5, the planetary gears 52 mesh with the first sun gear 4 and the internal gear ring 6, respectively. In the second to fourth stage planetary carriers 5, the planetary gears 52 mesh with the second sun gear 53 and the internal gear ring 6, respectively. Through the above-described four-stage planetary transmission reducer design, the power input via the input shaft 2 can be reduced in four stages and then output to the external oscillating mechanism via the output shaft 3, ensuring a low speed and high torque for the oscillating mechanism. That is, the power is input to the input shaft 2 through the output end of the drive motor on the cutting machine via the transmission belt, so as to drive the sun gear 4 to rotate. The sun gear 4 drives the planet gear 52 in the first-stage planetary disk carrier 5 to revolve on the internal gear ring 6 and generate its own rotation, thereby driving the planetary disk seat 51 in the first-stage planetary disk carrier 5 and the sun gear 53 at the bottom to rotate. Then, the transmission and deceleration are carried out in sequence through the next three stages of planetary disk carrier 5.

[0031] Each planetary disk 51 has four planetary gears 52 arranged circumferentially.

[0032] The mounting base 1 includes a cylindrical shell 11, an end cap 12, and a partition block 13. The end caps 12 are detachably locked at both ends of the cylindrical shell 11 by locking bolts. Several partition blocks 13 are provided circumferentially inside the cylindrical shell 11 to divide the inner cavity of the cylindrical shell 11 into upper and lower mounting cavities, providing assembly space for the rolling bearing 14, and providing a stopping and limiting function for the bearing through the partition blocks 13.

[0033] It also includes rolling bearings 14 and retaining rings 15; two rolling bearings 14 are stacked and assembled inside each end cover 12, and the two rolling bearings 14 are stopped and limited by retaining rings 15, which are embedded in the end cover 12. The retaining rings 15 further stop and limit the rolling bearings 14 to ensure the stability of the rolling bearings 14 during assembly and to prevent axial movement.

[0034] It also includes slots 16, and several slots 16 are provided circumferentially on the inner wall of the cylindrical shell 11.

[0035] It also includes locking blocks 17. Several locking blocks 17 are provided circumferentially on the outer wall of the internal gear ring 6, and the locking blocks 17 are engaged with the locking groove 16. The through-hole locking groove 16 and locking blocks 17 are designed to facilitate the assembly and positioning of the internal gear ring 6 and prevent its radial rotation.

[0036] Two internal gear rings 6 are provided, and the two internal gear rings 6 are respectively assembled in the upper and lower mounting cavities. Each internal gear ring 6 is limited and pressed by the end cover 12 and the partition block 13 to prevent the internal gear ring 6 from axially shifting.

[0037] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A four-stage planetary transmission reducer, characterized in that, include: Mounting sleeve base (1); Input shaft (2), output shaft (3) and sun gear (4); the input shaft (2) and the output shaft (3) are rotatably mounted on both ends of the mounting base (1), and the sun gear (4) is sleeved on the input shaft (2); Planetary disk carrier (5) and internal gear ring (6), the internal gear ring (6) is installed in the mounting sleeve (1), the planetary disk carrier (5) with four-stage transmission is meshed and stacked on the internal gear ring (6), and the first stage planetary disk carrier (5) is meshed and connected to the sun gear (4), and the fourth stage planetary disk carrier (5) is connected to the output shaft (3).

2. The four-stage planetary transmission reducer as described in claim 1, characterized in that, The planetary disk carrier (5) includes: a planetary disk holder (51), planetary gears (52), and a second sun gear (53); a plurality of planetary gears (52) are circumferentially mounted on one side of the planetary disk holder (51), and the second sun gear (53) is axially mounted on the other side of the first to third stage planetary disk holders (51); in the first stage planetary disk carrier (5), the planetary gears (52) are meshed and connected to the first sun gear (4) and the internal gear ring (6) respectively; in the second to fourth stage planetary disk carriers (5), the planetary gears (52) are meshed and connected to the second sun gear (53) and the internal gear ring (6) respectively.

3. A four-stage planetary transmission reducer as described in claim 2, characterized in that, Each of the planetary disks (51) has four planetary gears (52) arranged circumferentially.

4. A four-stage planetary transmission reducer as described in claim 1, characterized in that, The mounting base (1) includes: a cylindrical shell (11), an end cap (12), and a partition block (13); the end cap (12) is detachably locked at both ends of the cylindrical shell (11) by locking bolts, and a plurality of partition blocks (13) are provided circumferentially inside the cylindrical shell (11) to divide the inner cavity of the cylindrical shell (11) into upper and lower mounting cavities.

5. A four-stage planetary transmission reducer as described in claim 4, characterized in that, It also includes rolling bearings (14) and retaining rings (15); two rolling bearings (14) are stacked and assembled inside the end cap (12) on each side, and the two rolling bearings (14) are stopped and limited by the retaining rings (15), which are embedded in the end cap (12).

6. A four-stage planetary transmission reducer as described in claim 4, characterized in that, It also includes slots (16), and a plurality of slots (16) are provided circumferentially on the inner wall of the cylindrical shell (11).

7. A four-stage planetary transmission reducer as described in claim 6, characterized in that, It also includes a locking block (17), and the outer wall of the inner gear ring (6) is provided with a plurality of locking blocks (17) in the circumferential direction, and the locking blocks (17) are engaged and connected with the locking groove (16).

8. A four-stage planetary transmission reducer as described in claim 4, characterized in that, Two internal gear rings (6) are provided, and the two internal gear rings (6) are respectively assembled in the upper and lower mounting cavities, and each internal gear ring (6) is limited and pressed by the end cap (12) and the partition block (13).

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