A mechanical steering system designed to prevent abnormal noise.

Abstract

This utility model discloses a mechanical steering gear for preventing abnormal noise. This utility model relates to the field of automotive parts technology. The mechanical steering gear for preventing abnormal noise includes a housing mechanism. The main body of the housing mechanism is a box structure with a one-way opening at the top. A positioning rod is fixedly connected inside the housing mechanism. The positioning rod is arranged longitudinally. This utility model effectively prevents dust from entering the interior through multiple sealing protections of components such as the housing mechanism, cover mechanism, insert plate assembly, plunger, and its sealing ring. This reduces wear caused by dust friction between the rack assembly and gear assembly, thereby reducing the possibility of abnormal noise. The reasonable design of components such as the positioning rod, connecting plate, and positioning pin ensures stable power transmission from the input shaft to the output rod, making tire steering reliable. On the other hand, the good sealing structure reduces component wear and extends the service life of the steering gear.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to a mechanical steering gear for preventing abnormal noise. Background Technology

[0002] As a core component of the automotive steering system, the performance of the mechanical steering gear directly affects driving safety and driving experience. However, existing mechanical steering gears often experience abnormal noises during long-term use. A novel mechanical steering gear, patent publication number CN211167076U, includes a steering gear body with a radiator, air outlets, and air inlets. Inside the steering gear body are a steering worm, a finger pin, and a temperature sensor. One end of the finger pin engages with the steering worm, and the other end is connected to a rocker arm, which is connected to a suspension arm. One end of the steering worm is connected to a rotating screw inside the steering gear body, and the other end is connected to the vehicle's steering rod via a bearing. The radiator consists of an equipment slot, an air outlet slot, and an air inlet slot, and a controller is located inside the equipment slot. The addition of a radiator effectively solves the problem of frictional heat generation inside the steering gear. Through monitoring by a temperature sensor and execution control by a controller, a fan dissipates the heat inside the steering gear, thereby avoiding understeer and inaccurate steering caused by heat fade.

[0003] Regarding the aforementioned technologies, the inventors believe that the following defects exist: When existing steering systems are in use, the meshing transmission of rack and pinion is limited by poor sealing. External dust can easily cause excessive wear between the rack and pinion, and even generate abnormal noise. Therefore, we propose a mechanical steering system with noise prevention to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a mechanical steering gear that prevents abnormal noise. This solves the problem that existing steering gears, when using rack and pinion meshing transmission, are prone to excessive wear and even abnormal noise when external dust enters due to poor sealing.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a mechanical steering gear for preventing abnormal noise, including a housing mechanism, the main body of which is a box structure with a one-way opening at the top, and a positioning rod is fixedly connected inside the housing mechanism, the positioning rod being arranged longitudinally;

[0006] The top surface of the positioning rod is provided with a screw hole. There are four positioning rods in total. The four positioning rods are fixedly connected to the four corners inside the housing mechanism. An output rod is installed inside the housing mechanism. The output rod is used to output power to drive the tire steering. Two connecting plates are fixedly connected to the outer side of the output rod in opposite directions.

[0007] The connecting plate has a through hole inside, into which a positioning pin is inserted, and a rack assembly is installed through the positioning pin.

[0008] Preferably, a cover mechanism is installed at the top of the housing mechanism, and through holes for the positioning rod to pass through are opened at the four corners of the inside of the cover mechanism.

[0009] Preferably, an insert plate assembly is fixedly connected to the bottom end face of the cover mechanism, and the insert plate assembly is used to fit against the inner wall of the housing mechanism.

[0010] Preferably, the cover mechanism is assembled to the top of the housing mechanism by a connecting bolt, and an end seat mechanism is fixedly connected to the center position of the top surface of the cover mechanism.

[0011] Preferably, the end seat mechanism has a bearing component installed inside, and a plug is inserted into the end seat mechanism.

[0012] Preferably, the plunger has an annular structure, and a sealing ring is fixedly connected to the inner wall of the plunger, and a cover plate assembly is fixedly connected to the top surface of the plunger.

[0013] Preferably, the main body of the cover plate assembly is an annular structure, and the left and right sides of the outer periphery of the plug are fixedly connected with plug blocks for insertion and limiting inside the end seat mechanism. An input shaft is installed inside the bearing component, and a gear assembly that meshes with the rack assembly is installed on the outside of the input shaft.

[0014] Beneficial effects

[0015] This invention provides a mechanical steering gear for preventing abnormal noise. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] This noise-preventing mechanical steering gear effectively prevents dust from entering the interior through multiple sealing protections of components such as the housing mechanism, cover mechanism, insert plate assembly, plunger and its sealing ring, reducing wear caused by dust friction between the rack assembly and gear assembly, thereby reducing the possibility of abnormal noise.

[0018] This noise-reducing mechanical steering gear, through the rational design of components such as positioning rods, connecting plates, and positioning pins, ensures stable power transmission from the input shaft to the output rod, making tire steering reliable. On the other hand, the excellent sealing structure reduces component wear, extends the service life of the steering gear, improves the stability of the entire steering system, and ensures driving safety and driving experience. Attached Figure Description

[0019] Figure 1 This is a cross-sectional front view of the mechanical steering gear of this utility model;

[0020] Figure 2 This is a schematic diagram of the assembly structure of the mechanical steering gear of this utility model;

[0021] Figure 3 This is a schematic diagram of the piston and cover plate assembly structure of the mechanical steering gear of this utility model;

[0022] Figure 4 This is a schematic diagram of the front side view of the mechanical steering gear of this utility model after some of its structure has been removed.

[0023] Figure 5 This is a schematic diagram of the combined structure of the cover mechanism and the insert plate assembly of the mechanical steering gear of this utility model;

[0024] Figure 6 This is a schematic diagram of the overall left-side structure of the mechanical steering gear of this utility model.

[0025] In the diagram: 1. Housing mechanism; 101. Positioning rod; 1011. Output rod; 1012. Connecting plate; 1013. Positioning pin; 1014. Rack assembly; 2. Cover mechanism; 201. Insert plate assembly; 2011. Connecting bolt; 3. End seat mechanism; 301. Bearing component; 3011. Plug; 3012. Cover plate assembly; 3013. Insert block assembly; 3014. Input shaft; 3015. Gear assembly. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1 - Figure 6This utility model provides a technical solution: a mechanical steering gear for preventing abnormal noise, including a housing mechanism 1. The main body of the housing mechanism 1 is a box structure with a one-way opening at the top. A positioning rod 101 is fixedly connected inside the housing mechanism 1. The positioning rod 101 is arranged longitudinally.

[0028] A screw hole is provided on the top surface of the positioning rod 101. There are four positioning rods 101 in total. The four positioning rods 101 are fixedly connected to the four corner positions inside the housing mechanism 1. An output rod 1011 is installed inside the housing mechanism 1. The output rod 1011 is used to output power to drive the tire steering. Two connecting plates 1012 are fixedly connected to the outer side of the output rod 1011 in opposite directions.

[0029] The connecting plate 1012 has a through hole inside, into which a positioning pin 1013 is inserted, and a rack assembly 1014 is installed through the positioning pin 1013.

[0030] The positioning rods 101 at the four corners inside the housing mechanism 1 not only provide stable support for the internal components, but their top screw holes also facilitate subsequent installation and fixing. The output rod 1011 is connected to the rack assembly 1014 through the connecting plate 1012 and the positioning pin 1013, ensuring stable power output and reliable tire steering action. This is the basic structural guarantee for the steering gear to realize its steering function.

[0031] See Figure 1 - Figure 3 The top of the housing mechanism 1 is equipped with a cover mechanism 2, and the four corners of the cover mechanism 2 are provided with through holes for the positioning rod 101 to pass through.

[0032] The cover mechanism 2 is installed on the top of the housing mechanism 1. The through holes at its four corners cooperate with the positioning rod 101 to accurately position the cover mechanism 2. At the same time, it initially blocks external dust from entering the housing mechanism 1 and provides a certain degree of protection for internal components such as the rack assembly 1014 and gear assembly 3015.

[0033] See Figure 2 - Figure 4 An insert plate assembly 201 is fixedly connected to the bottom end face of the cover mechanism 2. The insert plate assembly 201 is used to fit against the inner wall of the housing mechanism 1.

[0034] The insertion plate assembly 201 at the bottom of the cover mechanism 2 fits against the inner wall of the housing mechanism 1, further enhancing the sealing effect, reducing the gaps where dust enters, effectively reducing the impact of external dust on the meshing transmission of the internal rack assembly 1014 and gear assembly 3015, and extending the service life of the components.

[0035] See Figure 5 - Figure 6The cover mechanism 2 is assembled on the top of the housing mechanism 1 by connecting bolt 2011, and the end seat mechanism 3 is fixedly connected to the center of the top surface of the cover mechanism 2.

[0036] The cover mechanism 2 is securely assembled to the top of the housing mechanism 1 by connecting bolt 2011, ensuring the stability of the sealing structure. The end seat mechanism 3 is fixed at the center of the top of the cover mechanism 2, providing a mounting base for subsequent installation of components such as bearing 301 and plunger 3011, ensuring that the entire steering gear structure is compact and stable.

[0037] See Figure 3 - Figure 6 The end seat mechanism 3 has a bearing component 301 installed inside, and a plug 3011 is inserted into the end seat mechanism 3.

[0038] The bearing 301 within the end seat mechanism 3 provides stable rotational support for the input shaft 3014, reducing rotational friction. The plunger 3011 is inserted into the end seat mechanism 3, initially sealing the end seat mechanism 3 and reducing dust from entering the steering gear from the top.

[0039] See Figure 1 - Figure 2 The plunger 3011 has an annular structure, and a sealing ring is fixedly connected to the inner wall of the plunger 3011. A cover plate assembly 3012 is fixedly connected to the top surface of the plunger 3011.

[0040] The sealing performance is enhanced by the sealing ring on the inner wall of the annular plunger 3011, effectively preventing dust from entering through the gap between the plunger 3011 and the end seat mechanism 3. The cover plate assembly 3012 is fixed to the top of the plunger 3011, further blocking dust, and at the same time working with the plunger 3011 to protect the internal structure.

[0041] See Figure 4 - Figure 5 The main body of the cover plate assembly 3012 is a ring structure, and the left and right sides of the outer peripheral surface of the plug 3011 are fixedly connected with the plug block assembly 3013 for insertion and limiting inside the end seat mechanism 3. The bearing 301 has an input shaft 3014 installed inside, and the outside of the input shaft 3014 has a gear assembly 3015 that meshes with the rack assembly 1014 for transmission.

[0042] The insertion block assembly 3013 ensures more precise and stable positioning of the plunger 3011 within the end seat mechanism 3, preventing the plunger 3011 from shaking. The input shaft 3014 rotates within the bearing component 301, and its outer gear assembly 3015 meshes with the rack assembly 1014 to transmit power, converting the rotation of the input shaft 3014 into the linear motion of the rack assembly 1014, thus achieving the steering function. Furthermore, the overall sealed structure reduces dust interference and minimizes abnormal noise.

[0043] During operation, when installing the mechanical steering gear, first fix the positioning rod 101 at the four corners inside the housing mechanism 1. The positioning rod 101 is longitudinally arranged and has a screw hole at the top, providing a stable foundation and positioning point for the installation of other components. Then, install the output rod 1011 inside the housing mechanism 1. The connecting plate 1012 on the outside of the output rod 1011 is connected to the rack assembly 1014 through the positioning pin 1013 to ensure a stable connection.

[0044] When the driver turns the steering wheel, the rotation of the steering wheel drives the input shaft 3014 to rotate. The input shaft 3014 is installed in the bearing 301 in the end seat mechanism 3. The bearing 301 provides stable rotational support for the input shaft 3014 and reduces friction during rotation. The gear assembly 3015 on the outside of the input shaft 3014 rotates together with the input shaft 3014. The gear assembly 3015 meshes with the rack assembly 1014, converting the rotation of the input shaft 3014 into the linear motion of the rack assembly 1014.

[0045] The linear motion of the rack assembly 1014 is transmitted to the connecting plate 1012 through the locating pin 1013, which in turn drives the output rod 1011 to move. The output rod 1011 outputs power to drive the tires to steer and realize the steering operation of the car.

[0046] The housing mechanism 1 is equipped with a cover mechanism 2 at the top. The through holes at the four corners of the cover mechanism 2 pass through the positioning rod 101 to achieve precise positioning and initially block dust. The insert plate assembly 201 at the bottom of the cover mechanism 2 fits against the inner wall of the housing mechanism 1 to enhance the sealing effect and reduce dust entry. The end seat mechanism 3 inserts a plug 3011 inside. The sealing ring on the inner wall of the plug 3011 further prevents dust from entering through the gap between the plug 3011 and the end seat mechanism 3. The cover plate assembly 3012 at the top of the plug 3011 and the insert block assembly 3013 on the outer periphery of the plug 3011 make the plug 3011 more stably positioned in the end seat mechanism 3, blocking dust in all directions and protecting the internal gear assembly 3015 and rack assembly 1014, avoiding excessive wear and abnormal noise caused by dust.

[0047] In summary, the device can achieve stable sealing by setting up a housing mechanism 1 and a cover mechanism 2.

[0048] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A mechanical steering damper against noise, comprising a housing mechanism (1), the main body of which is a box structure with a top end one-way opening, characterized in that: The housing mechanism (1) is internally fixedly connected to a positioning rod (101), which is arranged longitudinally; The top surface of the positioning rod (101) is provided with a screw hole. There are four positioning rods (101) in total. The four positioning rods (101) are fixedly connected to the four corner positions inside the housing mechanism (1). An output rod (1011) is installed inside the housing mechanism (1). The output rod (1011) is used to output power to drive the tire steering. Two connecting plates (1012) are fixedly connected to the outer side of the output rod (1011) in opposite directions. The connecting plate (1012) has a through hole inside, into which a positioning pin (1013) is inserted, and a rack assembly (1014) is installed through the positioning pin (1013).

2. The mechanical steering gear for preventing abnormal noise according to claim 1, characterized in that: The top of the housing mechanism (1) is equipped with a cover mechanism (2), and the four corners of the cover mechanism (2) are provided with through holes for the positioning rod (101) to pass through.

3. A mechanical steering gear for preventing abnormal noise according to claim 2, characterized in that: The bottom end face of the cover mechanism (2) is fixedly connected to the insert plate assembly (201), which is used to fit against the inner wall of the shell mechanism (1).

4. A mechanical steering gear for preventing abnormal noise according to claim 3, characterized in that: The cover mechanism (2) is assembled on the top of the housing mechanism (1) by a connecting bolt (2011), and an end seat mechanism (3) is fixedly connected to the center of the top surface of the cover mechanism (2).

5. A mechanical steering gear for preventing abnormal noise according to claim 4, characterized in that: The end seat mechanism (3) is equipped with a bearing component (301) and a plug (3011) is inserted into the end seat mechanism (3).

6. A mechanical steering gear for preventing abnormal noise according to claim 5, characterized in that: The plunger (3011) has an annular structure, and a sealing ring is fixedly connected to the inner wall of the plunger (3011). A cover plate assembly (3012) is fixedly connected to the top surface of the plunger (3011).

7. A mechanical steering gear for preventing abnormal noise according to claim 6, characterized in that: The main body of the cover plate assembly (3012) is a ring structure, and the left and right sides of the outer peripheral surface of the plug (3011) are fixedly connected with the plug block assembly (3013) for insertion and limiting inside the end seat mechanism (3). The bearing component (301) has an input shaft (3014) installed inside, and the input shaft (3014) has a gear assembly (3015) that meshes with the rack assembly (1014) for transmission on the outside of the gear assembly (3014).

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