Heavy truck steering gear with anti-sticking function

Abstract

The utility model belongs to heavy truck steering gear technical field especially relates to a heavy truck steering gear with anti -jamming function, including steering gear casing, transmission shaft, transmission shaft is through steering gear casing and is located inside steering gear casing, the inside of steering gear casing is provided with lubricating component, impurity cleaning component, lubricating component sets up in the top of steering gear casing, impurity cleaning component is installed in the below of steering gear casing. This heavy truck steering gear with anti -jamming function, through lubricating component realizes sustained lubrication, and lubricating oil storage tank cooperates lubricating oil shower pipe, can continuously spray lubricating oil in transmission shaft rotation key position, directly reduces core component friction, at the same time with the help of the cooperation of sliding ring and the circular ring outer nesting, further reduce the friction between transmission shaft and steering gear casing, double protection device avoids jam, thereby improves the overall service life of device.

Description

Technical Field

[0001] This utility model relates to the field of heavy-duty truck steering technology, specifically a heavy-duty truck steering system with anti-jamming function. Background Technology

[0002] As a core control component in the driving system of heavy-duty trucks, the steering gear's operational stability directly affects vehicle driving safety and handling precision. Heavy-duty trucks typically operate in complex and harsh conditions such as mines, construction sites, and long-distance freight transport, requiring frequent steering operations and enduring significant loads over extended periods. This places extremely high demands on the steering gear's structural strength, lubrication performance, and anti-interference capabilities.

[0003] Most existing heavy-duty truck steering systems employ traditional mechanical transmission structures, primarily composed of core components such as the steering gear housing, drive shaft, and transmission gear set. In practical use, these steering systems generally face two major problems: First, the risk of jamming due to an imperfect lubrication system design. Traditional steering systems typically rely on periodic manual lubrication, which can easily lead to blind spots, especially at the rotating connection between the drive shaft and the housing. These areas are often subjected to semi-dry friction or insufficient lubrication, causing increased wear and tear over time, resulting in steering jamming and, in severe cases, steering failure and potential accidents. Secondly, traditional lubrication structures have poor sealing performance, leading to lubricant leakage. This not only reduces lubrication effectiveness but also contaminates surrounding components, increasing maintenance costs.

[0004] Secondly, the lack of impurity cleaning capabilities leads to performance degradation. When heavy-duty trucks operate under harsh conditions, dust, sand, metal wear debris, and other impurities easily enter the steering gear housing. These impurities adhere to the surfaces of transmission components as the drive shaft rotates, accelerating abrasive wear and reducing the steering gear's lifespan. Furthermore, impurities tend to accumulate in the rotational clearances, increasing steering resistance and further exacerbating steering jamming. Currently, most steering gears lack dedicated impurity cleaning mechanisms, relying solely on the natural seal of the housing to block impurities. Cleaning requires disassembling the steering gear, which is cumbersome and disrupts normal vehicle operation.

[0005] Furthermore, while some existing steering systems are equipped with simple lubrication devices, they lack precise lubrication control and long-term sealing structures, resulting in low lubricant utilization. Simultaneously, the handling of impurities often relies on fixed filtration methods, which are prone to filter clogging and cannot achieve continuous and efficient impurity removal. Based on these shortcomings of existing technologies, developing an anti-jamming heavy-duty truck steering system with efficient lubrication, reliable sealing, and continuous impurity removal capabilities has become a key requirement for improving the driving safety of heavy-duty trucks and extending the service life of steering systems. Utility Model Content

[0006] The purpose of this invention is to provide a heavy-duty truck steering system with anti-jamming function to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty truck steering gear with anti-jamming function, comprising a steering gear housing and a drive shaft, wherein the drive shaft passes through the steering gear housing and is disposed inside the steering gear housing, wherein a lubrication assembly and an impurity cleaning assembly are disposed inside the steering gear housing, wherein the lubrication assembly is disposed above the steering gear housing, and the impurity cleaning assembly is installed below the steering gear housing;

[0008] A retaining ring is provided inside the steering gear housing and on the outer surface of the drive shaft. The lubrication assembly includes a lubricating oil leak-proof sealing plug one, which is located inside the steering gear housing. A circular ring limiting block is provided inside the steering gear housing. A sliding ring is provided on the outer surface of the drive shaft and inside the steering gear housing. A circular ring outer nesting is provided inside the steering gear housing and on the outer surface of the sliding ring. A circular ring outer nesting limiting block is provided inside the steering gear housing and on the outer surface of the circular ring outer nesting. A second lubricating oil leak-proof sealing plug is provided inside the steering gear housing. A lubricating oil storage tank is provided above the steering gear housing, and lubricating oil spray pipes are connected to both ends of the lubricating oil storage tank.

[0009] Preferably, the impurity cleaning component includes a motor, which is mounted on the bottom of the steering gear housing. The output shaft of the motor is driven by a transmission belt assembly, and the other end of the transmission belt assembly is connected to a threaded rod. A waste storage box is provided at the bottom of the steering gear housing, and a permeable membrane is provided at the connection between the waste storage box and the steering gear housing. A scraper is provided on the outer surface of the threaded rod, and a slide bar is provided inside the waste storage box.

[0010] Preferably, the top of the lubricating oil storage tank is provided with an oil filling port, the oil filling port is internally threaded with a sealing cap, and the inner top of the sealing cap is provided with a sealing gasket, the sealing gasket being made of nitrile rubber.

[0011] Preferably, the end of the lubricating oil spray pipe is provided with an atomizing nozzle, the atomizing nozzle faces the rotating connection part of the drive shaft, a filter screen is provided at the nozzle of the atomizing nozzle, and a flow control valve is installed on the lubricating oil spray pipe.

[0012] Preferably, the inner surface of the sliding ring is provided with a graphite lubricating layer, the graphite lubricating layer is in close contact with the outer surface of the drive shaft, the outer surface of the sliding ring is provided with a plurality of annular grooves, and the inner surface of the ring is provided with annular protrusions that are adapted to the annular grooves.

[0013] Preferably, the top of the scraper is provided with an elastic scraper blade, which is in close contact with the lower surface of the permeation membrane, and the scraper blade is provided with a weight reduction cavity inside.

[0014] Preferably, the inner wall of the steering gear housing is provided with a sound insulation and noise reduction layer, which is made of glass wool, and the outer surface of the steering gear housing is provided with an anti-corrosion coating, which is an epoxy resin coating.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This heavy-duty truck steering gear with anti-jamming function, by installing a lubrication unit, continuously sprays lubricating oil from the lubricating oil storage tank onto the key rotating parts inside the drive shaft through the lubricating oil spray pipe when the drive shaft is rotating, and further reduces the friction between the drive shaft and the steering gear housing by means of auxiliary sliding rings and outer nested rings, thereby providing overall lubrication of the device and preventing jamming.

[0017] 2. This heavy-duty truck steering gear with anti-jamming function, by setting up an impurity cleaning component, allows impurities inside the steering gear housing to permeate through the permeation membrane into the waste storage box. Then, the motor is started, and the screw rod is driven to rotate through the transmission belt assembly, so that the scraper continuously assists in scraping the permeation membrane, preventing impurities from clogging the permeation membrane and preventing impurities from permeating. At the same time, with the help of the sliding rod, the scraper can be kept horizontal, which facilitates the auxiliary scraping of the permeation membrane. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the steering gear housing of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the impurity cleaning component of this utility model.

[0021] In the diagram: 1. Steering gear housing; 2. Drive shaft; 3. Fixing ring; 4. Lubricating oil leak-proof sealing plug one; 5. Circular ring limiting block; 6. Sliding ring; 7. Circular ring outer nesting limiting block; 8. Circular ring outer nesting; 9. Lubricating oil leak-proof sealing plug two; 10. Drive gear; 11. Lubricating oil storage tank; 12. Lubricating oil spray pipe; 13. Motor; 14. Drive belt assembly; 15. Waste storage box; 16. Permeable membrane; 17. Threaded rod; 18. Scraper; 19. Slide rod. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a heavy truck steering gear with anti-jamming function, including a steering gear housing 1 and a drive shaft 2. The drive shaft 2 passes through the steering gear housing 1 and is disposed inside the steering gear housing 1. A lubrication component and an impurity cleaning component are disposed inside the steering gear housing 1. The lubrication component is disposed above the steering gear housing 1, and the impurity cleaning component is installed below the steering gear housing 1.

[0024] A retaining ring 3 is provided inside the steering gear housing 1 and on the outer surface of the drive shaft 2. The lubrication assembly includes a lubricating oil leak-proof sealing plug 4, which is located inside the steering gear housing 1. An annular limiting block 5 is provided inside the steering gear housing 1. A sliding auxiliary ring 6 is provided on the outer surface of the drive shaft 2 and inside the steering gear housing 1. An outer annular nest 8 is provided inside the steering gear housing 1 and on the outer surface of the sliding auxiliary ring 6. An outer annular nest limiting block 7 is provided inside the steering gear housing 1 and on the outer surface of the outer annular nest 8. The device is equipped with a lubricating oil leak-proof sealing plug 9. A lubricating oil storage tank 11 is installed on the top of the steering gear housing 1. Both ends of the lubricating oil storage tank 11 are connected to lubricating oil spray pipes 12. By installing a lubrication unit, when the drive shaft 2 rotates, the lubricating oil inside the lubricating oil storage tank 11 is continuously sprayed onto the key rotating parts inside the drive shaft 2 through the lubricating oil spray pipes 12 for lubrication. Furthermore, the friction between the drive shaft 2 and the steering gear housing 1 is reduced by the auxiliary sliding ring 6 and the outer nested ring 8, thereby providing overall lubrication of the device and preventing jamming.

[0025] The impurity cleaning component includes a motor 13, which is mounted at the bottom of the steering gear housing 1. The output shaft of the motor 13 is connected to a transmission belt assembly 14, and the other end of the transmission belt assembly 14 is connected to a threaded rod 17. A waste storage box 15 is provided at the bottom of the steering gear housing 1, and a permeable membrane 16 is provided at the connection between the waste storage box 15 and the steering gear housing 1. A scraper 18 is provided on the outer surface of the threaded rod 17, and a slide bar 19 is provided inside the waste storage box 15. By setting up the impurity cleaning component, impurities inside the steering gear housing 1 can permeate into the waste storage box 15 through the permeable membrane 16. Then, the motor 13 is started, and the transmission belt assembly 14 drives the threaded rod 17 to rotate, so that the scraper 18 continuously assists in scraping the permeable membrane 16, preventing impurities from clogging the permeable membrane 16 and preventing impurities from permeating. At the same time, with the help of the slide bar 19, the scraper 18 can be kept horizontal, which facilitates the auxiliary scraping of the permeable membrane 16.

[0026] The top of the lubricating oil storage tank 11 is provided with an oil filling port, and the internal thread of the oil filling port is connected to a sealing cap. The inner top of the sealing cap is provided with a sealing gasket, which is made of nitrile rubber. The oil filling port 20 facilitates the replenishment of lubricating oil into the lubricating oil storage tank 11. The sealing cap and the sealing gasket 22 cooperate to achieve a double seal, preventing lubricating oil leakage and the entry of external impurities.

[0027] The end of the lubricating oil spray pipe 12 is equipped with an atomizing nozzle, which faces the rotating connection part of the drive shaft 2. A filter screen is installed at the nozzle of the atomizing nozzle. A flow control valve is installed on the lubricating oil spray pipe 12. The atomizing nozzle can atomize the lubricating oil and spray it evenly on the key parts to improve the lubrication coverage and effect. The filter screen can filter impurities in the lubricating oil to prevent clogging of the nozzle. The flow control valve can adjust the spray flow according to the working load of the drive shaft 2 to achieve precise lubrication.

[0028] The inner surface of the sliding ring 6 is provided with a graphite lubricating layer, which is in close contact with the outer surface of the drive shaft 2. The outer surface of the sliding ring 6 is provided with several annular grooves, and the inner surface of the outer ring 8 is provided with annular protrusions that match the annular grooves. The graphite lubricating layer can further reduce the friction between the sliding ring 6 and the drive shaft 2. The annular grooves and annular protrusions can restrict the axial displacement of the sliding ring 6, ensuring its stable operation, and at the same time forming a lubricating oil storage cavity to improve lubrication durability.

[0029] The top of the scraper 18 is provided with an elastic scraper blade, which is in close contact with the lower surface of the permeation membrane 16. The scraper 18 is provided with a weight reduction chamber. The elastic scraper blade has a certain elasticity, which can remove impurities while avoiding damage to the permeation membrane 16 and extending its service life. The weight reduction chamber can reduce the weight of the scraper 18 and reduce the load on the motor 13.

[0030] The inner wall of the steering gear housing 1 is provided with a sound insulation and noise reduction layer, which is made of glass wool. The outer surface of the steering gear housing 1 is provided with an anti-corrosion coating 38, which is an epoxy resin coating. The sound insulation and noise reduction layer can absorb the noise generated when the drive shaft 2 rotates and the components work, thereby reducing the working noise of the steering gear. The anti-corrosion coating can improve the corrosion resistance of the steering gear housing 1, adapt to the complex working environment of heavy trucks, and extend the overall service life of the device.

[0031] Working principle: The drive shaft 2 passes through the steering gear housing 1 and is positioned by the fixing ring 3. In the lubrication assembly above the steering gear housing 1, the lubricating oil storage tank 11 sprays the lubricating oil atomized and precisely onto the key rotating parts of the drive shaft 2 through the lubricating oil spray pipe 12 (with atomizing nozzle, filter and flow control valve at the end) connected at both ends. At the same time, the sliding ring 6 on the outer surface of the drive shaft 2 (with a graphite lubrication layer on the inner surface that fits the drive shaft 2, and an annular groove on the outer surface that cooperates with the annular protrusion on the inner surface of the outer ring 8 to form a lubricating oil storage cavity and restrict axial displacement) cooperates with the outer ring 8 and the outer ring limiting block 7. Combined with the lubricating oil anti-leakage sealing plug 1 4, the lubricating oil anti-leakage sealing plug 2 9 and the annular limiting block 5, leakage prevention and limiting are achieved, which together reduce the friction between the drive shaft 2 and the steering gear housing 1. The friction between the housing 1 and the steering gear housing improves the lubrication effect and prevents jamming. In the impurity cleaning component below the steering gear housing 1, internal impurities permeate through the permeation membrane 16 to the waste storage box 15. After the motor 13 is started, the threaded rod 17 is rotated through the transmission belt assembly 14, so that the scraper 18 (with an elastic scraper on the top and a weight reduction cavity inside) moves horizontally along the slide rod 19 to scrape off the impurities on the lower surface of the permeation membrane 16 to prevent blockage. The oil filling port 20 of the lubricating oil storage tank 11 is double-sealed to prevent leakage and impurities through the sealing cap 21 and the sealing gasket 22 made of nitrile rubber. The sound insulation and noise reduction layer of glass wool on the inner wall of the steering gear housing 1 absorbs working noise, and the anti-corrosion coating 38 of epoxy resin on the outer surface improves corrosion resistance, ensuring that the device can adapt to the working environment of heavy trucks and extend its service life.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A heavy truck steering gear with anti-sticking function, comprising a steering gear housing (1), a transmission shaft (2), characterized in that: The drive shaft (2) passes through the steering gear housing (1) and is disposed inside the steering gear housing (1). The steering gear housing (1) is provided with a lubrication assembly and a dirt cleaning assembly. The lubrication assembly is disposed above the steering gear housing (1), and the dirt cleaning assembly is disposed below the steering gear housing (1). A fixing ring (3) is provided inside the steering gear housing (1) and on the outer surface of the drive shaft (2). The lubrication assembly includes a lubricating oil leak-proof sealing plug (4), which is located inside the steering gear housing (1). A circular ring limiting block (5) is provided inside the steering gear housing (1). A sliding ring (6) is provided on the outer surface of the drive shaft (2) and on the inner side of the steering gear housing (1). A circular ring outer nest (8) is provided inside the steering gear housing (1) and on the outer surface of the sliding ring (6). A circular ring outer nest limiting block (7) is provided inside the steering gear housing (1) and on the outer surface of the circular ring outer nest (8). A lubricating oil leak-proof sealing plug (9) is provided inside the steering gear housing (1). A lubricating oil storage tank (11) is provided above the steering gear housing (1). A lubricating oil spray pipe (12) is connected to both ends of the lubricating oil storage tank (11).

2. The heavy truck steering gear with anti-sticking function according to claim 1, characterized in that: The impurity cleaning assembly includes a motor (13), which is installed at the bottom of the steering gear housing (1). The output shaft of the motor (13) is connected to a transmission belt assembly (14), and the other end of the transmission belt assembly (14) is connected to a threaded rod (17). A waste storage box (15) is provided at the bottom of the steering gear housing (1). A permeable membrane (16) is provided at the connection between the waste storage box (15) and the steering gear housing (1). A scraper (18) is provided on the outer surface of the threaded rod (17), and a slide rod (19) is provided inside the waste storage box (15).

3. The heavy truck steering gear with anti-sticking function according to claim 1, characterized in that: The top of the lubricating oil storage tank (11) is provided with an oil filling port, and the oil filling port is internally threaded with a sealing cap. The inner top of the sealing cap is provided with a sealing gasket, which is made of nitrile rubber.

4. A heavy-duty truck steering system with anti-jamming function according to claim 1, characterized in that: The lubricating oil spray pipe (12) is provided with an atomizing nozzle at its end, the atomizing nozzle is directed toward the rotating connection of the drive shaft (2), a filter screen is provided at the nozzle of the atomizing nozzle, and a flow control valve is installed on the lubricating oil spray pipe (12).

5. A heavy-duty truck steering system with anti-jamming function according to claim 1, characterized in that: The inner surface of the sliding ring (6) is provided with a graphite lubricating layer, which is in close contact with the outer surface of the drive shaft (2). The outer surface of the sliding ring (6) is provided with a number of annular grooves, and the inner surface of the outer nest (8) of the ring is provided with annular protrusions that are adapted to the annular grooves.

6. The heavy truck steering gear with anti-sticking function according to claim 2, characterized in that: The top of the scraper (18) is provided with an elastic scraper blade, which is in close contact with the lower surface of the permeation membrane (16). The scraper (18) is provided with a weight reduction chamber inside.

7. The heavy truck steering gear with anti-sticking function according to claim 1, characterized in that: The inner wall of the steering gear housing (1) is provided with a sound insulation and noise reduction layer, which is made of glass wool. The outer surface of the steering gear housing (1) is provided with an anti-corrosion coating (38), which is an epoxy resin coating.

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