Steering assembly component of mini-tiller

Abstract

The utility model discloses a steering assembly component of a mini-tiller, and relates to the technical field of mini-tillers. The steering assembly component of the mini-tiller comprises a transmission shaft, and a baffle is fixedly connected to the outer surface of the transmission shaft. According to the utility model, the tooth grooves for meshing connection of the driving gear and the driven gear are arranged to be the inclined grooves, so that sliding between the driving gear and the driven gear can be facilitated, relative sliding speed between the driving gear and the driven gear is reduced, abrasion of meshing points is reduced, and sliding friction and heat generation can be reduced compared with straight grooves and inclined grooves; the service life of the gear transmission system is prolonged, the driving gear and the driven gear are connected in three different meshing modes, higher design flexibility and application diversity can be provided, different meshing combination transmission modes are suitable for different working conditions and requirements, and the service life of the gear transmission system is prolonged by reasonably selecting the different meshing combination transmission modes. The requirements of specific application can be better met, and the transmission efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-tillage machines, in particular to a steering assembly component of a micro-tillage machine. Background Art

[0002] Steering wheel or joystick: The steering wheel or joystick is a control device used to operate the steering. The operator can change the direction of travel of the micro-tiller by rotating the steering wheel or pushing and pulling the joystick; Steering drive shaft: The steering drive shaft is a component that connects the steering wheel or joystick to other parts of the steering system. It realizes the steering operation by transmitting the steering input; Steering box: The steering box is the core component of the steering system, usually located at the front axle position of the micro-tiller. The steering box receives the steering input from the steering drive shaft and converts it into the steering action of the front wheel. The gear and slider mechanism enable the steering box to convert the input into the corresponding front wheel steering angle; Throttle valve / hydraulic valve (hydraulic steering system): In the hydraulic steering system, a throttle valve or hydraulic valve is also included to control the hydraulic flow and the operating pressure of the steering system. They can adjust the sensitivity and steering power of the steering wheel; Front wheel steering mechanism: In some micro-tillers, the front wheel steering mechanism is used to make the front wheel adjust the direction of travel according to the steering operation. It usually includes components such as connecting rods, tie rods and steering rods, and the front wheels are turned through mechanical connections.

[0003] The meshing between the steering transmission gears of traditional micro-tillers is vertical meshing. The vertical meshing method may generate relatively large noise and vibration during the steering process. Due to the vertical meshing of the gears, the impact and relative movement of the meshing surfaces when in contact will generate vibration and noise, which may cause discomfort to the operator and even affect the working environment. The gear transmission with vertical meshing usually introduces large friction losses, resulting in a decrease in transmission efficiency. The axial force and tooth surface friction caused by the vertical meshing will consume part of the input power and reduce the transmission efficiency. There is generally a certain transmission gap in the vertical meshing method, that is, the gap between the gears. The transmission gap may cause the steering system to be less sensitive, making the steering response not precise and fast enough. Since the gear contact area is relatively small during vertical meshing, wear and concentrated wear are prone to occur at the gear meshing point. Long-term use and heavy loads may cause wear and damage to the gears, thereby affecting the reliability and life of the steering system. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a micro-tiller steering assembly component, which solves the problem that the traditional micro-tiller steering transmission gears are vertically meshed, and long-term use and heavy loads may cause wear and damage to the gears, thereby affecting the reliability and life of the steering system.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a micro-tiller steering assembly component, including a transmission shaft, the outer surface of the transmission shaft is fixedly connected with a baffle, the outer surface of the transmission shaft is movably sleeved with a return spring, the surface of the return spring is equidistantly fixedly connected with a limit block, the outer surface of the transmission shaft is slidably connected with a resistance cylinder, the surface of the resistance cylinder away from the transmission shaft is fixedly connected with a connecting ring, the surface of the connecting ring away from the resistance cylinder is fixedly connected with a driving gear, the outer surface of the transmission shaft is rotatably connected with a driven gear, the driving gear is meshingly connected with the driven gear, any one of the inner wall, outer surface or side surface of the driving gear is provided with a tooth groove meshing with the driven gear, the outer surface of the driven gear is fixedly connected with an external gear, and the interior of the driving gear is equidistantly provided with limit grooves matching the limit blocks.

[0006] Preferably, the tooth grooves at the meshing points of the driving gear and the driven gear are all bevel grooves, and the shapes of the tooth grooves of the driving gear and the driven gear match.

[0007] Preferably, the driving gear is slidably connected to the outer surface of the limiting block through a limiting groove, one end of the return spring abuts against the surface of the baffle, and the other end of the return spring abuts against the surface of the abutment cylinder.

[0008] Preferably, when the inner wall of the driving gear is provided with tooth grooves, the outer surface of the driven gear is provided with tooth grooves matching the inner wall of the driving gear.

[0009] Preferably, when the outer surface of the driving gear is provided with tooth grooves, the inner wall of the driven gear is provided with tooth grooves matching the outer surface of the driving gear.

[0010] Preferably, when the side surface of the driving gear is provided with a tooth groove, the opposite surfaces of the driven gear and the driving gear are provided with a tooth groove matching the side surface of the driving gear.

[0011] Beneficial Effects

[0012] The utility model provides a steering assembly for a micro-tillage machine. Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The micro-tiller steering assembly, by setting the tooth grooves that mesh the driving gear and the driven gear into oblique grooves, can facilitate the sliding between the driving gear and the driven gear, reduce the relative sliding speed between each other, and reduce the wear of the meshing point. Compared with straight grooves, oblique grooves can reduce sliding friction and heat generation, thereby extending the life of the gear transmission system.

[0014] 2. The micro-tiller steering assembly can provide greater design flexibility and application diversity by setting the connection between the driving gear and the driven gear into three different meshing modes. Different meshing combination transmission modes are suitable for different working conditions and needs. By reasonably selecting different meshing combination transmission modes, it can better meet the needs of specific applications and improve transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the driven gear and the external gear in the utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the cylinder and the driving gear in the utility model;

[0018] Figure 4 This is a schematic diagram of the driving gear structure in the utility model;

[0019] Figure 5 It is a schematic diagram of the connection between the driving gear and the driven gear when the inner wall of the driving gear is provided with tooth grooves in the utility model;

[0020] Figure 6 This is a schematic diagram of the structure in which tooth grooves are arranged outside the driven gear in the utility model;

[0021] Figure 7 It is a schematic diagram of the connection between the driving gear and the driven gear when the tooth groove is arranged on the side of the driving gear in the utility model;

[0022] Figure 8 It is a structural schematic diagram of the tooth grooves arranged on the side of the driven gear in the utility model.

[0023] In the figure: 1, transmission shaft; 2, baffle; 3, return spring; 4, limit block; 6, stop cylinder; 7, connecting ring; 8, driving gear; 81, limit groove; 9, driven gear; 10, external gear. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-4The utility model provides a technical solution: a micro-tiller steering assembly, including a transmission shaft 1, a baffle plate 2 is fixedly connected to the outer surface of the transmission shaft 1, a return spring 3 is movably sleeved on the outer surface of the transmission shaft 1, a limit block 4 is fixedly connected to the surface of the return spring 3 at an equidistant distance, a resistance cylinder 6 is slidably connected to the outer surface of the transmission shaft 1, one end of the return spring 3 abuts against the surface of the baffle plate 2, the other end of the return spring 3 abuts against the surface of the resistance cylinder 6, a connecting ring 7 is fixedly connected to the surface of the resistance cylinder 6 away from the transmission shaft 1, a driving gear 8 is fixedly connected to the surface of the connecting ring 7 away from the resistance cylinder 6, the driving gear 8 is slidably connected to the outer surface of the limit block 4 through a limit groove 81, a driven gear 9 is rotatably connected to the outer surface of the transmission shaft 1, the tooth grooves at the meshing position of the driving gear 8 and the driven gear 9 are all oblique grooves, the tooth groove shapes of the driving gear 8 and the driven gear 9 match, the driving gear 8 is meshed and connected with the driven gear 9, and the inner surface of the driving gear 8 The wall is provided with tooth grooves meshing with the driven gear 9 (when the driving gear 8 is an inner bevel gear, the driven gear 9 is an outer bevel gear, and when the driving gear 8 is an outer bevel gear, the driven gear 9 is an inner bevel gear). The outer surface of the driven gear 9 is fixedly connected with an outer gear 10. The interior of the driving gear 8 is provided with limit grooves 81 matching the limit block 4 at equal intervals. The tooth grooves at the meshing points of the driving gear 8 and the driven gear 9 are all bevel grooves. The tooth groove shapes of the driving gear 8 and the driven gear 9 match. When the tooth grooves are provided on the inner wall of the driving gear 8, the outer surface of the driven gear 9 is provided with tooth grooves matching the inner wall of the driving gear 8. By setting the tooth grooves meshing with the driven gear as bevel grooves, the sliding between the driving gear and the driven gear can be facilitated, the relative sliding speed between each other can be reduced, and the wear of the meshing point can be reduced. Compared with straight grooves, bevel grooves can reduce sliding friction and heat generation, thereby extending the life of the gear transmission system.

[0027] Embodiment 2

[0028] See also Figure 5 and Figure 6 The outer surface of the driving gear 8 is provided with tooth grooves meshing with the driven gear 9, and the tooth grooves at the meshing position of the driving gear 8 and the driven gear 9 are all bevel grooves, (when the driving gear 8 is internal bevel teeth, the driven gear 9 is external bevel teeth, and when the driving gear 8 is external bevel teeth, the driven gear 9 is internal bevel teeth). The tooth groove shapes of the driving gear 8 and the driven gear 9 match. When the tooth grooves are provided on the outer surface of the driving gear 8, the inner wall of the driven gear 9 is provided with tooth grooves matching the outer surface of the driving gear 8;

[0029] Embodiment 3

[0030] See also Figure 7 and Figure 8The side of the driving gear 8 is provided with a tooth groove that meshes with the driven gear 9. The tooth grooves at the meshing points of the driving gear 8 and the driven gear 9 are all bevel grooves. The tooth groove shapes of the driving gear 8 and the driven gear 9 match. (When the driving gear 8 is an internal bevel tooth, the driven gear 9 is an external bevel tooth, and when the driving gear 8 is an external bevel tooth, the driven gear 9 is an internal bevel tooth.) When the tooth groove is provided on the side of the driving gear 8, the opposite surfaces of the driven gear 9 and the driving gear 8 are provided with tooth grooves that match the side of the driving gear 8. By setting the connection between the driving gear and the driven gear into three different meshing modes, greater design flexibility and application diversity can be provided. Different meshing combination transmission modes are suitable for different working conditions and requirements. By reasonably selecting different meshing combination transmission modes, the needs of specific applications can be better met and the transmission efficiency can be improved.

[0031] When turning, the operator will drive the cylinder 6 to slide through the corresponding control handle, steering wheel or other steering devices. When the cylinder 6 slides in the direction close to the baffle 2, it will drive the driving gear 8 to slide, so that the driving gear 8 slowly moves away from the driven gear 9 and disengages from the driven gear 9, so that the outer gear 10 is not driven by the transmission shaft 1 to rotate, and the steering is realized. When steering is not required, the cylinder 6 is driven by the corresponding control handle, steering wheel or other steering devices without external force. At this time, the sliding position of the cylinder 6 can be reset by the elasticity of the reset spring 3, so that the driving gear 8 is engaged with the driven gear 9, and the normal rotation of the outer gear 10 is realized. By setting the tooth grooves that mesh with the driving gear 8 and the driven gear 9 to be beveled grooves, the sliding between the driving gear 8 and the driven gear 9 can be facilitated, the relative sliding speed between them can be reduced, and the wear of the meshing points can be reduced. Compared with straight grooves, beveled grooves can reduce sliding friction and heat generation, thereby extending the life of the gear transmission system. By setting the connection between the driving gear 8 and the driven gear 9 to three different meshing modes, greater design flexibility and application diversity can be provided. Different meshing combination transmission modes are suitable for different working conditions and requirements. By reasonably selecting different meshing combination transmission modes, the needs of specific applications can be better met and the transmission efficiency can be improved.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A steering assembly for a micro-tillage machine, comprising a transmission shaft (1), characterized in that: The outer surface of the transmission shaft (1) is fixedly connected with a baffle (2), the outer surface of the transmission shaft (1) is movably sleeved with a return spring (3), the surface of the return spring (3) is equidistantly fixedly connected with a limit block (4), the outer surface of the transmission shaft (1) is slidably connected with a resist tube (6), the surface of the resist tube (6) away from the transmission shaft (1) is fixedly connected with a connecting ring (7), the surface of the connecting ring (7) away from the resist tube (6) is fixedly connected with a driving gear (8), the outer surface of the transmission shaft (1) is rotatably connected with a driven gear (9), the driving gear (8) is meshingly connected with the driven gear (9), any one of the inner wall, outer surface or side surface of the driving gear (8) is provided with a tooth groove meshing with the driven gear (9), the outer surface of the driven gear (9) is fixedly connected with an external gear (10), and the interior of the driving gear (8) is equidistantly provided with limit grooves (81) matching with the limit block (4).

2. A micro-tillage machine steering assembly according to claim 1, characterized in that: The tooth grooves at the meshing positions of the driving gear (8) and the driven gear (9) are all bevel grooves, and the tooth groove shapes of the driving gear (8) and the driven gear (9) match.

3. The micro-tillage machine steering assembly according to claim 1, characterized in that: The driving gear (8) is slidably connected to the outer surface of the limiting block (4) via a limiting groove (81), one end of the return spring (3) abuts against the surface of the baffle (2), and the other end of the return spring (3) abuts against the surface of the abutment cylinder (6).

4. The micro-tillage machine steering assembly according to claim 1, characterized in that: When the inner wall of the driving gear (8) is provided with tooth grooves, the outer surface of the driven gear (9) is provided with tooth grooves matching the inner wall of the driving gear (8).

5. The micro-tillage machine steering assembly according to claim 1, characterized in that: When the outer surface of the driving gear (8) is provided with tooth grooves, the inner wall of the driven gear (9) is provided with tooth grooves matching the outer surface of the driving gear (8).

6. The micro-tillage machine steering assembly according to claim 1, characterized in that: When the side surface of the driving gear (8) is provided with a tooth groove, the opposite surfaces of the driven gear (9) and the driving gear (8) are provided with a tooth groove matching the side surface of the driving gear (8).

Images