A gear reduction box

Abstract

The utility model relates to a gear reduction gearbox, including reduction gearbox casing, reduction gearbox upper cover, reduction gearbox gear group, clutch yoke, the reduction gearbox gear group sets up in the inside of reduction gearbox casing, and the side end of reduction gearbox gear group is placed on the side wall of reduction gearbox casing, the reduction gearbox upper cover is fixed in the top surface of reduction gearbox casing, the clutch yoke is provided with multiple groups, and multiple clutch yokes are connected on reduction gearbox gear group, and the top end of multiple clutch yokes passes through reduction gearbox upper cover. The utility model optimizes the setting of gear reduction gearbox, improves the design of gear reduction gearbox gear shifting structure, changes the design of traditional friction clutch, improves a kind of brand-new clutch structure, and simple structure is easy to use, and it is suitable for use.

Description

Technical Field

[0001] This utility model relates to the field of gearboxes, and more particularly to a gear reducer. Background Technology

[0002] Gear reducers have a wide range of applications, from large-scale engineering machinery to small mini toys. Traditional gear reducers use friction plates in their clutch mechanisms, but the friction plates generate a lot of heat during multiple gear shifts. Although many reducers have lubricating oil inside for heat dissipation, the effect is not significant. With prolonged use and significant wear, they are also prone to malfunction due to overheating. Therefore, a new type of gear reducer was designed. Utility Model Content

[0003] The purpose of this utility model is to provide a gear reducer to solve the above-mentioned technical problems. To achieve the above purpose, this utility model adopts the following technical solution:

[0004] A gear reducer includes a reducer housing, a reducer cover, a reducer gear set, and a clutch shift fork. The reducer gear set is disposed inside the reducer housing, and the side end of the reducer gear set passes through the side wall of the reducer housing. The reducer cover is fixed to the top surface of the reducer housing. Multiple sets of clutch shift forks are provided, and the multiple sets of clutch shift forks are connected to the reducer gear set, with the top ends of the multiple sets of clutch shift forks passing through the reducer cover.

[0005] Based on the above technical solution, the inner bottom side of the gearbox housing is provided with multiple sets of limiting grooves, and the inner bottom of the limiting grooves is provided with multiple sets of supporting gears. The multiple sets of supporting gear shafts are connected to the two side walls of the limiting grooves. The side walls of the gearbox housing are provided with opposing shaft end fixing holes. The gearbox gear set consists of an input shaft, an output shaft, an input shaft end, an output shaft end, an output gear, an input gear, and an end-sealed bearing. The output shaft and input shaft are arranged side-by-side. The input shaft end is located on one side of the input shaft, and the output shaft ends are oppositely located on both sides of the output shaft. Multiple sets of output gears are provided, and these multiple sets of output gears are arranged on the output shaft. The input gear… The gearbox has multiple sets of input gears arranged on the input shaft. The multiple sets of output gears mesh with the multiple sets of input gears. The end-sealed bearings are connected to both ends of the input shaft and the output shaft, and both ends of the input shaft and the output shaft are connected to the shaft end fixing holes on the side wall of the gearbox housing through the end-sealed bearings. The output shaft, the output shaft end, and the output gear are integrally fixed. The sides of the multiple sets of supporting gears are connected to the multiple sets of input gears. The multiple sets of clutch forks are all sleeved on the input shaft and are correspondingly arranged on one side of the input gears. The clutch forks can be embedded in the input gears. The multiple sets of input gears are correspondingly arranged inside the limiting grooves.

[0006] Based on the above technical solution, the input gear on the input shaft and the output gear on the output shaft are arranged in opposite directions. The input gear consists of an external gear and an inner central disk. The external gear is located outside the inner central disk. A sliding insertion hole with equal circumferential angle is provided between the external gear and the inner central disk. The inner central disk is fixed on the input shaft. The side of the external gear meshes with the supporting gear. The clutch shift fork consists of a shift fork bearing, a shift fork holder, a shift fork inner rod, a shift fork sleeve, and an outer shift rod. The shift fork holder is positioned and connected to the outer front end of the shift fork sleeve through the shift fork bearing, and the shift fork holder can rotate outside the shift fork sleeve. The outer shift rod is fixed to the outer rear end of the shift fork sleeve. The shift fork inner rod is fixed at the outer end of the shift fork holder with equal circumferential angle. The shift fork sleeve is fitted on the input shaft, and the shift fork sleeve can slide laterally on the input shaft. The shift fork holder is located at equal circumferential angle outside the shift fork bearing.

[0007] Compared with the prior art, the present invention has the following advantages: The present invention optimizes the setting of the gear reducer, improves the design of the gear reducer shifting structure, changes the design of the traditional friction clutch, and improves it into a brand-new clutch structure. The structure is simple and easy to use, and is suitable for widespread application. Attached Figure Description

[0008] Figure 1 This is a general appearance diagram of the present utility model.

[0009] Figure 2 This is a schematic diagram showing the disassembled structure of this utility model.

[0010] Figure 3 This is a detailed schematic diagram showing the disassembled gear set of the reduction gearbox of this utility model.

[0011] Figure 4 This is a schematic diagram of the input gear of this utility model.

[0012] In the diagram: 1. Gearbox housing; 2. Gearbox top cover; 3. Gearbox gear set; 4. Clutch shift fork; 5. Limiting groove; 6. Support gear; 7. Shaft end fixing hole; 8. Input shaft; 9. Output shaft; 10. Input shaft end; 11. Output shaft end; 12. Output gear; 13. Input gear; 14. End sealing bearing; 15. External gear; 16. Inner center disc; 17. Sliding insert hole; 18. Shift fork bearing; 19. Shift fork bracket; 20. Shift fork insert rod; 21. Shift fork sleeve; 22. External shift rod. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] A gear reducer includes a reducer housing 1, a reducer cover 2, a reducer gear set 3, and a clutch fork 4. The reducer gear set 3 is disposed inside the reducer housing 1, and the side end of the reducer gear set 3 passes through the side wall of the reducer housing 1. The reducer cover 2 is fixed to the top surface of the reducer housing 1. Multiple sets of clutch forks 4 are provided, and the multiple sets of clutch forks 4 are connected to the reducer gear set 3, and the top ends of the multiple sets of clutch forks 4 pass through the reducer cover 2.

[0015] The above describes the main external structure of the gear reducer, with corresponding details attached. Figure 1 .

[0016] The inner bottom side of the gearbox housing 1 is provided with multiple sets of limiting grooves 5, and the inner bottom of the limiting grooves 5 is provided with multiple sets of supporting gears 6. The multiple sets of supporting gears 6 are shaft-connected to the two side walls of the limiting grooves 5. The side wall of the gearbox housing 1 is provided with opposing shaft end fixing holes 7. The gearbox gear set 3 is composed of an input shaft 8, an output shaft 9, an input shaft end 10, an output shaft end 11, an output gear 12, an input gear 13, and an end sealing bearing 14. The output shaft 9 and the input shaft 8 are arranged side by side. The input shaft end 10 is located at one end of the input shaft 8, and the output shaft end 11 is arranged oppositely at both ends of the output shaft 9. Multiple sets of output gears 12 are provided, and the multiple sets of output gears 12 are arranged on the output shaft 9. Multiple sets of input gears 13 are provided. Multiple sets of input gears 13 are arranged on the input shaft 8. Multiple sets of output gears 12 are meshed with the multiple sets of input gears 13. End-sealed bearings 14 are respectively connected to the two ends of the input shaft 8 and the output shaft 9. Both ends of the input shaft 8 and the output shaft 9 are connected to the shaft end fixing holes 7 on the side wall of the gearbox housing 1 through the end-sealed bearings 14. The output shaft 9, the output shaft end 11, and the output gear 12 are integrally fixed. The sides of the multiple sets of supporting gears 6 are connected to the multiple sets of input gears 13. Multiple sets of clutch forks 4 are all sleeved on the input shaft 8. The multiple sets of clutch forks 4 are correspondingly arranged on one side of the input gears 13, and the clutch forks 4 can be embedded in the input gears 13. The multiple sets of input gears 13 are correspondingly arranged inside the limiting grooves 5.

[0017] The above describes the main internal structure of the gearbox housing 1 and the main components and connections of the gearbox gear set 3. (See attached diagram.) Figure 2 and attached Figure 3 .

[0018] The input gear 13 on the input shaft 8 and the output gear 12 on the output shaft 9 are arranged in opposite directions. The input gear 13 consists of an external gear 15 and an inner central disk 16. The external gear 15 is located outside the inner central disk 16. A sliding insertion hole 17 with equal circumferential angle is provided between the external gear 15 and the inner central disk 16. The inner central disk 16 is fixed on the input shaft 8. The side of the external gear 15 meshes with the supporting gear 6. The clutch fork 4 consists of a fork bearing 18, a fork holder 19, and a fork inner... The system comprises a locking rod 20, a shift fork sleeve 21, and an outer shift rod 22. The shift fork frame 19 is positioned and connected to the outer front end of the shift fork sleeve 21 via a shift fork bearing 18, and the shift fork frame 19 can rotate on the outer side of the shift fork sleeve 21. The outer shift rod 22 is fixed to the outer rear end of the shift fork sleeve 21. The inner locking rod 20 is fixed at the outer end of the shift fork frame 19 at a constant circumferential angle. The shift fork sleeve 21 is sleeved on the input shaft 8, and the shift fork sleeve 21 can slide laterally on the input shaft 8. The shift fork frame 19 is set at a constant circumferential angle on the outer side of the shift fork bearing 18.

[0019] The above describes the main structure, connection relationships, and positions of the input gear 13, with corresponding appendices. Figure 4 .

[0020] In practical applications, the input shaft 8 serves as the power input end, and the output shaft 9 serves as the power output end. After the power is input from the input shaft 8, as the input shaft 8 rotates, the corresponding clutch fork 4 is moved to insert the inner rod 20 of the fork into the corresponding sliding inner hole 17 according to the required conversion effect. At the same time, the output gear 12 connected to the external gear 15 rotates accordingly, and finally outputs power through the output shaft 9.

[0021] During this process, the external gear 15 is kept rotating outside the inner center plate 16 due to the limiting groove 5 and the supporting gear 6. Furthermore, when the clutch fork 4 is pushed, the external gear 15 is confined within a certain range, reducing lateral wobbling. When the inner insert rod 20 of the clutch fork is inserted into the sliding inner hole 17, the external gear 15 rotates synchronously with the inner center plate 16. During insertion, the inner insert rod 20 of the clutch fork adopts a rounded end design (see attached diagram). Figure 4 The design of the shift fork bearing 18, shift fork holder 19, shift fork inner rod 20, shift fork sleeve 21, and outer shift rod 22 can reduce the impact of the outer shift rod 22 on the rotation of the shift fork holder 19 and shift fork inner rod 20 when the outer shift rod 22 is pushed.

[0022] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A gear reducer, characterized in that, The gearbox includes a gearbox housing (1), a gearbox cover (2), a gearbox gear set (3), and a clutch fork (4). The gearbox gear set (3) is located inside the gearbox housing (1), and the side end of the gearbox gear set (3) passes through the side wall of the gearbox housing (1). The gearbox cover (2) is fixed to the top surface of the gearbox housing (1). There are multiple sets of clutch forks (4), which are connected to the gearbox gear set (3), and the top of the multiple sets of clutch forks (4) passes through the gearbox cover (2).

2. A gear reducer according to claim 1, characterized in that, The inner bottom side of the gearbox housing (1) is provided with multiple sets of limiting grooves (5), and the inner bottom of the limiting grooves (5) is provided with multiple sets of supporting gears (6). The multiple sets of supporting gears (6) are shaft-connected to the two side walls of the limiting grooves (5). The side wall of the gearbox housing (1) is provided with opposing shaft end fixing holes (7). The gearbox gear set (3) is composed of an input shaft (8), an output shaft (9), an input shaft end (10), an output shaft end (11), an output gear (12), an input gear (13), and an end sealing bearing (14). The output shaft (9) and the input shaft (8) are arranged side by side. The input shaft end (10) is located on one side of the input shaft (8). The output shaft end (11) is arranged oppositely on both sides of the output shaft (9). Multiple sets of output gears (12) are provided, and the multiple sets of output gears (12) are arranged on the output shaft (9). The input gear (13) is provided with... Multiple sets of input gears (13) are arranged on the input shaft (8). Multiple sets of output gears (12) and multiple sets of input gears (13) are meshed and connected. The end sealing bearings (14) are respectively connected to the two ends of the input shaft (8) and the output shaft (9). Both ends of the input shaft (8) and the output shaft (9) are connected to the shaft end fixing holes (7) on the side wall of the gearbox housing (1) through the end sealing bearings (14). The output shaft (9), the output shaft end (11), and the output gear (12) are integrally fixed. The sides of the multiple sets of supporting gears (6) are connected to the multiple sets of input gears (13). Multiple sets of clutch forks (4) are all sleeved on the input shaft (8). Multiple sets of clutch forks (4) are correspondingly arranged on one side of the input gear (13). The clutch forks (4) can be embedded in the input gear (13). The multiple sets of input gears (13) are correspondingly arranged inside the limiting groove (5).

3. A gear reducer according to claim 2, characterized in that, The input gear (13) on the input shaft (8) and the output gear (12) on the output shaft (9) are arranged in opposite directions. The input gear (13) consists of an external gear (15) and an inner central disk (16). The external gear (15) is located outside the inner central disk (16). A sliding insert hole (17) with equal circumferential angle is provided between the external gear (15) and the inner central disk (16). The inner central disk (16) is fixed on the input shaft (8). The side of the external gear (15) meshes with the supporting gear (6). The clutch fork (4) consists of a fork bearing (18), a fork holder (19), and a clutch lever. The fork is composed of an inner rod (20), a fork sleeve (21), and an outer rod (22). The fork holder (19) is positioned and connected to the outer front end of the fork sleeve (21) through a fork bearing (18), and the fork holder (19) can rotate on the outer side of the fork sleeve (21). The outer rod (22) is fixed on the outer rear end of the fork sleeve (21). The inner rod (20) is fixed at the outer end of the fork holder (19) at a constant circumferential angle. The fork sleeve (21) is sleeved on the input shaft (8), and the fork sleeve (21) can slide laterally on the input shaft (8). The fork holder (19) is set at a constant circumferential angle on the outer side of the fork bearing (18).

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