Bridge single-stage edge reduction structure

Abstract

The utility model discloses an axle single-stage edge reduction structure, which relates to the related field of tractors, and comprises an outer shell and a driving shaft arranged in the outer shell, an output gear is arranged on the inner side of the driving shaft, an input gear is arranged at the upper end of the output gear, an edge reduction shell is arranged on the outer side of the input gear, and the edge reduction shell is connected with the driving shaft. A half shaft is arranged on the inner side of the input gear, and a differential assembly is installed on the inner side of the half shaft. When the axle single-stage edge reduction structure is used, through the driving shaft in the outer shell, driving of the driving shaft drives the input gear to rotate through the output gear, speed reduction is conducted through the gear ratio, the input gear drives the half shaft to conduct driving in the edge reduction shell, then transmission is conducted to the differential mechanism assembly, and the speed ratio is transmitted through the single-stage gear; the power transmission direction is achieved by changing the position of the differential mechanism assembly, the design is simple, and the ground clearance can be rapidly lifted.

Description

Technical Field

[0001] This utility model relates to the field of tractor-related technology, specifically to a single-stage side reduction structure for axles. Background Technology

[0002] The single-stage axle reduction structure is a mechanism used by vehicles to reduce speed. It is usually installed at the output end of the power output mechanism to regulate speed.

[0003] In existing technologies, the operation is complex and not conducive to user operation. The control method is relatively cumbersome, and the entire process is difficult for users to operate.

[0004] To overcome the above shortcomings, Chinese patent (publication number CN219467465U) discloses a wheel-side structure for a single-stage reduction drive axle, which includes an axle housing assembly. A half-shaft is disposed inside the axle housing assembly. One end of the half-shaft extends outward from the axle housing assembly and has an outer flange. A hub bearing is fitted on the outer side of the axle housing assembly, and a brake disc assembly is fitted on the outer side of the hub bearing. An inner flange is formed at the end of the brake disc assembly and is located outside the outer flange. The brake disc assembly, half-shaft, and hub bearing are connected together by fasteners that pass through the inner flange, outer flange, and hub bearing in sequence. This not only simplifies the disassembly process of the entire brake disc assembly but also improves the load-bearing braking capacity of the brake disc assembly.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation, such as insufficient ground clearance in the single-stage side reduction structure of the bridge, which increases costs due to the linkage of multiple gears. Utility Model Content

[0006] The purpose of this utility model is to provide a single-stage bridge reduction structure to solve the problems mentioned in the background art, such as insufficient ground clearance, increased cost, complicated operation, and inconvenience to users caused by the linkage of multiple gears.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a single-stage side reduction structure for a bridge, including a housing and a drive shaft disposed inside the housing, wherein an output gear is disposed on the inner side of the drive shaft; an input gear is disposed at the upper end of the output gear, and a side reduction housing is mounted on the outer side of the input gear; a half-shaft is disposed on the inner side of the input gear, and a differential assembly is mounted on the inner side of the half-shaft; the reduction is adjusted by the gear ratio between the output gear and the input gear.

[0008] Furthermore, the outer side of the side reduction housing is connected to the outer shell, and the inner side of the side reduction housing is connected to the outer side of the differential assembly, and the inner side of the differential assembly is arc-shaped.

[0009] Furthermore, a transmission belt is sleeved on the surface of the drive shaft via a pulley, and the lower end of the transmission belt is sleeved on the outside of the reciprocating threaded rod via the pulley. The middle end of the reciprocating threaded rod passes through the outer shell, and the reciprocating threaded rod is rotatably installed inside the outer shell via a limiting sleeve.

[0010] Furthermore, a movable block is threaded onto the surface of the reciprocating threaded rod, and a limit rod is installed through the lower end of the movable block, with the outer side of the limit rod fixedly installed at the lower end of the outer casing.

[0011] Furthermore, a mounting block is provided at the bottom of the side reduction housing, and a vibration spring is fixedly mounted at the lower end of the mounting block. A movable striking plate is fixedly mounted at the lower end of the vibration spring, and the upper protruding position of the movable striking plate corresponds to the surface of the side reduction housing.

[0012] Furthermore, a slider is fixedly installed on the outer side of the movable striking plate, and the mounting block is L-shaped, with a groove on the inner wall of the mounting block, and the slider is slidably connected to the groove.

[0013] Furthermore, a lifting inclined block is fixedly installed at the lower end of the movable striking plate, and both the left and right sides of the lifting inclined block are inclined, with the lower end of the lifting inclined block corresponding to the upper end of the movable block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In use, the drive shaft inside the housing drives the input gear through the output gear to rotate. The gear ratio reduces the speed. The input gear drives the half shaft inside the housing to drive the differential assembly. The transmission is then transmitted to the differential assembly. The ground clearance is raised by using a single-stage gear transmission ratio. The power transmission direction is changed by changing the position of the differential assembly. The design is simple and can quickly raise the ground clearance.

[0016] 2. During use, the reciprocating threaded rod is driven by the drive shaft, pulley, and transmission belt. As the reciprocating threaded rod rotates, the movable block connected to its surface thread is limited by the limit rod. The lifting inclined block is squeezed upward to push the movable striking plate. The movable striking plate rises and squeezes the vibration spring under the limit of the slider and slide groove. The movable striking plate also strikes the side housing upward, preventing impurities from accumulating at the meshing point of the output gear and input gear during operation, thus improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 2 This utility modelFigure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of the transmission belt of this utility model;

[0020] Figure 4 This is a bottom-view three-dimensional structural diagram of the reciprocating threaded rod of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the lifting inclined block of this utility model, viewed from below.

[0022] Figure 6 This is a cross-sectional three-dimensional structural diagram of the mounting block of this utility model.

[0023] In the diagram: 1. Outer housing; 2. Drive shaft; 3. Output gear; 4. Input gear; 5. Side reducer housing; 6. Half shaft; 7. Differential assembly; 8. Drive belt; 9. Reciprocating threaded rod; 10. Moving block; 11. Limit rod; 12. Mounting block; 13. Vibration spring; 14. Movable striking plate; 15. Lifting ramp; 16. Slider; 17. Slide groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: As Figure 1 The technical solution shown is a single-stage side reduction structure for a bridge. To solve the problem of insufficient ground clearance, it discloses: an outer shell 1 and a drive shaft 2 disposed inside the outer shell 1. An output gear 3 is disposed on the inner side of the drive shaft 2, an input gear 4 is disposed on the upper end of the output gear 3, a side reduction housing 5 is mounted on the outer side of the input gear 4, a half shaft 6 is disposed on the inner side of the input gear 4, and a differential assembly 7 is mounted on the inner side of the half shaft 6. The outer side of the side reduction housing 5 is connected to the outer shell 1, and the inner side of the side reduction housing 5 is connected to the outer side of the differential assembly 7. The inner side of the differential assembly 7 is arc-shaped.

[0026] In use, the drive shaft 2 inside the outer casing 1 drives the input gear 4 to rotate through the output gear 3. The gear ratio reduces the speed. The input gear 4 drives the half shaft 6 inside the side reduction housing 5, and then transmits the speed to the differential assembly 7. The ground clearance is raised by using a single-stage gear transmission ratio, and the power transmission direction is achieved by changing the position of the differential assembly 7.

[0027] Example 2: Figures 1-6 The technical solution shown, based on Embodiment 1, discloses the following to address the issue of impurities affecting transmission efficiency: a transmission belt 8 is sleeved on the surface of the drive shaft 2 via a pulley, and the lower end of the transmission belt 8 is sleeved on the outside of the reciprocating threaded rod 9 via the pulley. The middle end of the reciprocating threaded rod 9 penetrates the outer shell 1, and the reciprocating threaded rod 9 is rotatably mounted inside the outer shell 1 via a limiting sleeve. A movable block 10 is threaded onto the surface of the reciprocating threaded rod 9, and a limiting rod 11 is installed through the lower end of the movable block 10. The outer side of the limiting rod 11 is fixedly mounted on the lower end of the outer shell 1. A mounting block is provided at the bottom of the side housing 5. 12, and a vibration spring 13 is fixedly installed at the lower end of the mounting block 12, and a movable striking plate 14 is fixedly installed at the lower end of the vibration spring 13. The upper protruding position of the movable striking plate 14 corresponds to the surface of the side-reducing housing 5. A slider 16 is fixedly installed on the outer side of the movable striking plate 14. The shape of the mounting block 12 is "L". A groove 17 is opened on the inner wall of the mounting block 12. The slider 16 is slidably connected to the groove 17. A lifting inclined block 15 is fixedly installed at the lower end of the movable striking plate 14. The left and right sides of the lifting inclined block 15 are inclined. The lower end of the lifting inclined block 15 corresponds to the upper end of the movable block 10.

[0028] In use, driven by the drive shaft 2, the reciprocating threaded rod 9 is rotated by the pulley and the transmission belt 8. When the reciprocating threaded rod 9 rotates, it drives the movable block 10 connected to its surface thread to move under the limit of the limit rod 11. As the reciprocating threaded rod 9 rotates, the movable block 10 can move back and forth. When the movable block 10 moves, it squeezes the lifting inclined block 15. The lifting inclined block 15 is squeezed upward and pushes the movable striking plate 14. The movable striking plate 14 rises and squeezes the vibration spring 13 under the limit of the slider 16 and the slide groove 17. The movable striking plate 14 also strikes the side reduction housing 5 upward, which prevents impurities from accumulating at the meshing point of the output gear 3 and the input gear 4 during operation, thus affecting the use and improving the practicality of the device.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge single-stage side reduction structure, including a housing (1) and a drive shaft (2) disposed inside the housing (1), and an output gear (3) is disposed on the inner side of the drive shaft (2). Its features are: The upper end of the output gear (3) is provided with an input gear (4), and a side reduction housing (5) is installed on the outer side of the input gear (4). A half shaft (6) is provided on the inner side of the input gear (4), and a differential assembly (7) is installed on the inner side of the half shaft (6). The speed reduction is adjusted by the gear ratio between the output gear (3) and the input gear (4).

2. The bridge single-stage side reduction structure according to claim 1, characterized in that: The outer side of the side reduction housing (5) is connected to the outer shell (1), and the inner side of the side reduction housing (5) is connected to the outer side of the differential assembly (7), and the inner side of the differential assembly (7) is arc-shaped.

3. The bridge single-stage side reduction structure according to claim 1, characterized in that: The drive shaft (2) has a transmission belt (8) sleeved on its surface by a pulley, and the lower end of the transmission belt (8) is sleeved on the outside of the reciprocating threaded rod (9) by a pulley. The middle end of the reciprocating threaded rod (9) passes through the outer shell (1), and the reciprocating threaded rod (9) is rotatably installed inside the outer shell (1) by a limiting sleeve.

4. A bridge single-stage side reduction structure according to claim 3, characterized in that: The reciprocating threaded rod (9) has a movable block (10) threaded on its surface, and a limit rod (11) is installed through the lower end of the movable block (10), and the outer side of the limit rod (11) is fixedly installed at the lower end of the outer shell (1).

5. A bridge single-stage side reduction structure according to claim 1, characterized in that: The bottom of the side reduction housing (5) is provided with a mounting block (12), and a vibration spring (13) is fixedly installed at the lower end of the mounting block (12), and a movable striking plate (14) is fixedly installed at the lower end of the vibration spring (13), and the upper protruding position of the movable striking plate (14) corresponds to the surface of the side reduction housing (5).

6. A bridge single-stage side reduction structure according to claim 5, characterized in that: A slider (16) is fixedly installed on the outer side of the movable striking plate (14), and the mounting block (12) is L-shaped. A groove (17) is provided on the inner wall of the mounting block (12), and the slider (16) and the groove (17) are slidably connected.

7. A bridge single-stage side reduction structure according to claim 6, characterized in that: The lower end of the movable striking plate (14) is fixedly installed with a lifting inclined block (15), and both the left and right sides of the lifting inclined block (15) are inclined, and the lower end of the lifting inclined block (15) corresponds to the upper end of the movable block (10).

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