Lithium battery ratchet gear box

Abstract

The utility model discloses a lithium battery ratchet wheel gear box, including bottom shell, bottom shell with the gear box swing joint that is equipped, still be equipped with planetary gear set in the gear box, just the inner wall surface of gear box is equipped with tooth pin engagement with planetary gear set, the gear box is steel pipe, just tooth pin direct processing on the inner wall surface of gear box. Since the gear box is steel pipe and tooth pin direct processing on its inner wall surface, so that the gear box and tooth pin are integral structure, so can effectively solve the problem of the insufficient equipment structure strength and the easy abnormal sound after long -time use between the inner tooth ring and the gear box in the prior art because of swing joint.

Description

Technical Field

[0001] This utility model relates to the field of pruning equipment technology, specifically a lithium-ion battery ratchet shear gearbox. Background Technology

[0002] Our company is dedicated to the production and R&D of ratchet shears, and has launched numerous patented products with announcement numbers CN222944395U, CN213104238U, CN219986078U, and CN207787571U. However, the power mechanism of these patented products consists of a gearbox and a planetary gear set installed within the gearbox. In existing technology, the gearbox is made of powder metallurgy, thus requiring an internal gear ring to mesh with the planetary gear set to transmit power. Because the internal gear ring and gearbox are connected in a movable manner, and the gear teeth are made of powder metallurgy, the structural stability between the gearbox and the internal gear ring is poor. Consequently, after prolonged use, both the internal gear ring and the gearbox are prone to cracking and producing abnormal noises. Utility Model Content

[0003] The purpose of this invention is to provide a lithium-ion battery ratchet shear gearbox to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lithium-ion battery ratchet shear gearbox, including a bottom shell, the bottom shell being movably connected to a gearbox; the gearbox also includes a planetary gear set, and the planetary gear set is engaged with the inner wall surface of the gearbox by a toothed pin; the gearbox is made of steel pipe, and the toothed pin is directly machined on the inner wall surface of the gearbox.

[0005] As a preferred technical solution of this utility model: the bottom shell includes a support portion, and the side of the support portion away from the gearbox is connected to the outer shell.

[0006] As a preferred technical solution of this utility model: the planetary gear set includes a first planet carrier, one side of the first planet carrier is movably connected to a second planet carrier, and an output wheel is provided on the side of the first planet carrier away from the second planet carrier.

[0007] As a preferred technical solution of this utility model: a first gear shaft is further provided between the first planetary carrier and the output wheel; wherein, one end of the first gear shaft is movably connected to the first planetary carrier, and the output wheel is inserted into the other end of the first gear shaft through a provided insertion hole.

[0008] As a preferred technical solution of this utility model: the second planetary carrier has a second gear shaft on the side facing the first planetary carrier, and the second planetary carrier also has a third gear shaft on the side away from the second gear shaft.

[0009] As a preferred technical solution of this utility model: the planetary gear set further includes a fastener; one end of the fastener passes through the first planet carrier and connects to the first connecting hole provided on the first gear shaft to fix the first gear shaft on the first planet carrier.

[0010] As a preferred technical solution of this utility model: one end of the fastener passes through the first planetary carrier and connects to the second connecting hole on the second gear shaft to fix the first planetary carrier on the second planetary carrier.

[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows: Since the gearbox is made of steel pipe and the tooth pin is directly machined on its inner wall surface, the gearbox and the tooth pin are integrated into one structure. Therefore, it can effectively solve the problem of insufficient structural strength of the equipment and abnormal noise after long-term use caused by the movable connection between the internal gear ring and the gearbox in the prior art. Attached Figure Description

[0012] Figure 1 This is an exploded view of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the outer shell of this utility model;

[0014] Figure 3 This is a schematic diagram of one side of the disassembled planetary gear set of this utility model;

[0015] Figure 4 This is a schematic diagram of the other side of the disassembled planetary gear set of this utility model;

[0016] Figure 5 This is a schematic diagram of the main structure of the second gear carrier of this utility model.

[0017] In the diagram: 1. Bottom shell; 2. Support part; 3. Outer shell; 4. Gearbox; 5. Planetary gear set; 50. First planetary carrier; 51. Second planetary carrier; 52. First gear shaft; 53. Output wheel; 54. First connecting hole; 55. Insertion hole; 56. Second gear shaft; 57. Second connecting hole; 58. Third gear shaft; 59. Fastener; 6. Tooth pin. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as limiting this utility model.

[0019] Please see Figure 1-5 The present invention provides an embodiment of a lithium-ion battery ratchet shear gearbox, comprising a bottom shell 1, wherein the bottom shell 1 is movably connected to a gearbox 4; the gearbox 4 is further provided with a planetary gear set 5, and the planetary gear set 5 is engaged with a toothed pin 6 on the inner wall surface of the gearbox 4; the gearbox 4 is a steel pipe, and the toothed pin 6 is directly machined on the inner wall surface of the gearbox 4.

[0020] In summary, because the gearbox 4 is made of steel tubing and the toothed pin 6 is directly machined onto its inner wall, the gearbox 4 and the toothed pin 6 are integrated into a single structure. This effectively solves the problems of insufficient structural strength and abnormal noise after prolonged use caused by the movable connection between the internal gear ring and the gearbox in existing technologies. Furthermore, the gearbox 4 is movably mounted on the base shell 1, making its installation and replacement simple and convenient. Alternatively, the gearbox 4 can be made of solid bar stock, with the toothed pin 6 machined inside the bore after boring, or it can be directly formed onto the inner wall of the gearbox 4 using laser cutting or wire cutting processes.

[0021] Since the bottom shell 1 includes a support part 2, and the side of the support part 2 away from the gearbox 4 is connected to the outer shell 3, the drive wheel can be fixed inside the bottom shell 1 by the cooperation of the support part 2 and the outer shell 3. In addition, the material of the outer shell 3 is changed from the original aluminum alloy material to stainless steel material or the same material as the gearbox 4 to solve the problem that the aluminum alloy outer shell 3 is prone to breakage during use.

[0022] Based on the above scheme, to facilitate the production, processing, and assembly of the planetary gear set 5, the planetary gear set 5 includes a first planet carrier 50, one side of which is movably connected to a second planet carrier 51, and an output wheel 53 is provided on the side of the first planet carrier 50 away from the second planet carrier 51. A first gear shaft 52 is also provided between the first planet carrier 50 and the output wheel 53; wherein, one end of the first gear shaft 52 is movably connected to the first planet carrier 50, and the output wheel 53 is inserted into the other end of the first gear shaft 52 through a provided insertion hole 55. A second gear shaft 56 is provided on the side of the second planet carrier 51 facing the first planet carrier 50, and a third gear shaft 58 is provided on the side of the second planet carrier 51 away from the second gear shaft 56. The planetary gear set 5 also includes a fastener 59; one end of the fastener 59 passes through the first planet carrier 50 and connects to a first connecting hole 54 provided on the first gear shaft 52 to fix the first gear shaft 52 onto the first planet carrier 50. One end of the fastener 59 passes through the first planetary carrier 50 and connects to the second connecting hole 57 on the second gear shaft 56 to fix the first planetary carrier 50 onto the second planetary carrier 51.

[0023] In summary, by removing the fastener 59 on one side of the first planetary carrier 50, the second planetary carrier 51 can be disassembled. Similarly, by removing the fastener 59 on the other side of the first planetary carrier 50, the first gear shaft 52 can be disassembled, thus allowing the first planetary carrier 50, the second planetary carrier 51, and the output gear 53 to be manufactured and processed independently. Conversely, assembling them using the fastener 59 facilitates the assembly of the planetary gear set 5. The fastener 59 is preferably a hexagonal bolt, and the first connecting hole 54 and the second connecting hole 57 are preferably internally threaded holes.

[0024] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A lithium-ion battery ratchet scissor gearbox, characterized in that: Includes a bottom shell (1), which is movably connected to a gearbox (4); The gearbox (4) is also provided with a planetary gear set (5), and the planetary gear set (5) is engaged with the inner wall surface of the gearbox (4) by a toothed pin (6). The gearbox (4) is made of steel pipe, and the toothed pin (6) is directly machined on the inner wall surface of the gearbox (4).

2. The lithium-ion battery ratchet scissor gearbox according to claim 1, characterized in that: The bottom shell (1) includes a support (2), and the side of the support (2) away from the gearbox (4) is connected to the outer shell (3).

3. A lithium-ion battery ratchet scissor gearbox according to claim 1 or 2, characterized in that: The planetary gear set (5) includes a first planet carrier (50), one side of which is movably connected to a second planet carrier (51), and an output wheel (53) is provided on the side of the first planet carrier (50) away from the second planet carrier (51).

4. A lithium-ion battery ratchet scissor gearbox according to claim 3, characterized in that: A first gear shaft (52) is also provided between the first planetary carrier (50) and the output wheel (53); wherein, one end of the first gear shaft (52) is movably connected to the first planetary carrier (50), and the output wheel (53) is inserted into the other end of the first gear shaft (52) through a provided insertion hole (55).

5. A lithium-ion battery ratchet scissor gearbox according to claim 4, characterized in that: The second planetary carrier (51) has a second gear shaft (56) on the side facing the first planetary carrier (50), and a third gear shaft (58) is also provided on the side of the second planetary carrier (51) away from the second gear shaft (56).

6. A lithium-ion battery ratchet scissor gearbox according to claim 5, characterized in that: The planetary gear set (5) also includes a fastener (59); one end of the fastener (59) passes through the first planet carrier (50) and is connected to the first connecting hole (54) provided on the first gear shaft (52) to fix the first gear shaft (52) on the first planet carrier (50).

7. A lithium-ion battery ratchet scissor gearbox according to claim 6, characterized in that: One end of the fastener (59) passes through the first planetary carrier (50) and connects to the second connecting hole (57) on the second gear shaft (56) to fix the first planetary carrier (50) onto the second planetary carrier (51).

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