Wear-resistant automobile steering gear rack

Abstract

The utility model discloses a wear-resistant automobile steering gear rack, which relates to the technical field of automobile steering gears, and comprises a main shaft component, two groups of rack body components, tooth components, wear-resistant blocks, long-strip bolts and fastening bolts, the multiple sets of tooth assemblies are arranged on the upper portions of the two sets of rack body assemblies at equal intervals, every two adjacent sets of wear-resisting blocks are symmetrically connected to the upper portions of the tooth assemblies in an embedded mode, each set of wear-resisting blocks are made of high-carbon chromium steel or carburizing steel, and each set of wear-resisting blocks make contact with the tooth face of a gear, so that the wear resistance of the steering gear rack is enhanced, and the service life of the steering gear rack is prolonged. The wear-resistant blocks made of high-carbon chromium steel or carburizing steel are symmetrically embedded in the upper portions of the tooth assemblies, the wear-resistant blocks make contact with the tooth faces of the gears when engaged, direct contact between the tooth assemblies and the gears is avoided, and therefore the wear resistance of the rack is improved, performance reduction caused by long-term wear can be reduced, and the service life of the rack is prolonged. And the service life of the rack is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of automotive steering gear technology, specifically a wear-resistant automotive steering gear rack. Background Technology

[0002] In modern automotive manufacturing, the steering rack, as a core component of the steering system, directly affects the vehicle's handling stability and driving safety. Traditional automotive steering racks are typically made of ordinary steel, with the tooth assembly meshing directly with the gears. Over long-term use, the tooth surfaces gradually wear due to friction, which not only reduces steering accuracy but may also cause abnormal noises and vibrations, and in severe cases, even lead to steering failure, posing a threat to driving safety. To address this, we have proposed a wear-resistant automotive steering rack. By embedding wear-resistant blocks on the tooth surfaces of the rack, direct contact between the tooth surfaces and the gears is avoided, thus improving the rack's wear resistance. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a wear-resistant automotive steering rack, which solves the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant automotive steering rack, comprising:

[0005] Spindle assembly;

[0006] The rack body assembly, with two sets of rack body assemblies respectively disposed at both ends of the spindle assembly;

[0007] Toothed components, multiple sets of toothed components are equally spaced on the upper part of two sets of rack body components;

[0008] Wear-resistant blocks are symmetrically embedded in the upper part of each set of tooth components in two adjacent sets. The material of each set of wear-resistant blocks is high carbon chromium steel or carburized steel. By contacting the gear tooth surface with each set of wear-resistant blocks, the wear resistance of the steering rack is enhanced.

[0009] Furthermore, this wear-resistant automotive steering rack also includes:

[0010] Long bolts are threadedly connected between each set of rack body components and multiple sets of tooth components. By disassembling and assembling the long bolts, multiple sets of tooth components can be replaced after wear of multiple sets of wear-resistant blocks, reducing replacement costs and time.

[0011] Furthermore, this wear-resistant automotive steering rack also includes:

[0012] Multiple sets of fastening bolts are threadedly connected between the spindle assembly and the two sets of rack body assemblies. By disassembling and assembling multiple sets of fastening bolts, the rack body assembly can be removed and fixed, which assists in the replacement of the rack assembly.

[0013] Furthermore, the spindle assembly includes:

[0014] spindle;

[0015] The first groove is formed at both ends of the main shaft, and the dimensions of the two sets of the first grooves are adapted to the dimensions of the two sets of rack body assemblies.

[0016] Furthermore, the rack body assembly includes:

[0017] A rack body, wherein the rack body is located inside the groove one;

[0018] The second groove, and multiple sets of the second grooves, are equally spaced and formed on the upper part of the rack body.

[0019] Furthermore, the tooth assembly includes:

[0020] Teeth;

[0021] The mounting slots are symmetrically opened on the upper part of the teeth, and the size of the mounting slots is adapted to the wear-resistant block.

[0022] The base is fixedly connected to the lower part of the teeth, and each set of the base is located inside each set of grooves and the sizes are compatible.

[0023] Compared to the aforementioned background technology, the wear-resistant automotive steering rack provided in this application includes a main shaft assembly, a rack body assembly, a tooth assembly, wear-resistant blocks, long bolts, and fastening bolts. The wear-resistant blocks are symmetrically embedded in the tooth assembly. Since the wear-resistant blocks are made of high-carbon chromium steel or carburized steel, they have excellent wear resistance. Thus, by having each set of tooth assemblies contact the gear tooth surface, the wear resistance of the steering rack is enhanced.

[0024] This invention provides a wear-resistant automotive steering rack. Compared with the prior art, it has the following advantages:

[0025] 1. A wear-resistant automotive steering rack, wherein wear-resistant blocks made of high-carbon chromium steel or carburized steel are symmetrically embedded in the upper part of each set of gear components. The wear-resistant blocks make contact with the gear teeth when meshing, avoiding direct contact between the gear components and the gears, thereby improving the wear resistance of the rack, helping to reduce the performance degradation caused by long-term wear, and extending the service life of the rack.

[0026] 2. A wear-resistant automotive steering rack, which allows for easy separation of the rack body assembly and tooth assembly by simply removing the fastening bolts and long bolts after the wear-resistant blocks have worn down over a long period, enabling batch replacement. This reduces maintenance difficulty and improves maintenance efficiency. Furthermore, the replacement of the tooth assembly is simple and easy to operate, thus reducing the overall cost of replacing the rack. In addition, the use of wear-resistant blocks also reduces the cost of frequently replacing the entire rack. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a wear-resistant automotive steering rack.

[0028] Figure 2 A top view of a wear-resistant automotive steering rack;

[0029] Figure 3 for Figure 2 Sectional view of AA;

[0030] Figure 4 This is a schematic diagram of the disassembled structure of a wear-resistant automotive steering rack;

[0031] Figure 5 This is a schematic diagram of the main shaft assembly in a wear-resistant automotive steering rack.

[0032] Figure 6 A schematic diagram of the rack body assembly in a wear-resistant automotive steering rack;

[0033] Figure 7 This is a schematic diagram of the tooth assembly in a wear-resistant automotive steering rack.

[0034] In the diagram: 1. Spindle assembly; 11. Spindle; 12. Groove 1; 2. Rack body assembly; 21. Rack body; 22. Groove 2; 3. Gear assembly; 31. Gear; 32. Mounting groove; 33. Base; 4. Wear block; 5. Long bolt; 6. Fastening bolt. Detailed Implementation

[0035] 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.

[0036] Please see Figure 1-7This utility model provides a wear-resistant automotive steering rack technical solution: a wear-resistant automotive steering rack includes: a main shaft assembly 1, a rack body assembly 2, a tooth assembly 3, wear-resistant blocks 4, long bolts 5, and fastening bolts 6. Specifically, wear-resistant blocks 4, made of high-carbon chromium steel or carburized steel, are symmetrically embedded in the upper part of each tooth assembly 3. The wear-resistant blocks 4 then come into contact with the gear teeth when meshing, thereby avoiding direct contact between the tooth assembly and the gear, increasing wear resistance, and thus extending service life.

[0037] Furthermore, after the wear-resistant block 4 has been damaged for a long time, multiple sets of fastening bolts 6 are first removed to separate the rack body assembly 2. The detachable long bolts 5 are then used to release the rack body assembly 2 and multiple sets of tooth assemblies 3 from their fixation, allowing for the batch replacement of the tooth assemblies 3. Next, the long bolts 5 are re-passed through the upper part of the rack body assembly 2 and multiple sets of tooth assemblies 3 and threaded together. The rack body assembly 2 is then placed inside the spindle assembly 1, and multiple sets of fastening bolts 6 are reinstalled. This structure can reduce the efficiency and cost of replacing the tooth assemblies 3.

[0038] The spindle assembly 1 includes a spindle 11 and a groove 12. Specifically, the rack body assembly 2 is installed inside the groove 12. Bolt holes are provided at both ends of the groove 12, and the bottom threads of multiple sets of fastening bolts 6 are connected to the bolt holes.

[0039] The rack body assembly 2 includes a rack body 21 and a groove 22. Specifically, bolt holes are provided at both ends of the rack body 21, the upper part of multiple sets of fastening bolts 6 is located in the bolt holes, and a long bolt 5 passes through multiple sets of grooves 22. The long bolt 5 and one end of the rack body 21 are threaded together.

[0040] The tooth assembly 3 includes: tooth 31, mounting groove 32 and base 33. Specifically, wear-resistant block 4 is embedded in the inside of mounting groove 32, base 33 is installed in the inside of groove 22, and long bolt 5 passes through base 33 to fix tooth assembly 3.

[0041] The working principle of this utility model is as follows: In use, the base 33 of the multiple sets of toothed components 3 is first installed in the interior of the multiple sets of grooves 22 in sequence. The long bolts 5 are then passed through the multiple sets of grooves 22 and the multiple sets of bases 33 in sequence and threaded onto the rack body 21, thus performing preliminary assembly. Then, the rack body 21 is installed in the groove 12 and the main shaft 11 and the rack body 21 are fixed by multiple sets of fastening bolts 6.

[0042] When the automotive steering rack is in operation, multiple sets of wear-resistant blocks 4 mesh with the gear. After the wear-resistant blocks 4 wear out due to long-term use, multiple sets of fastening bolts 6 are removed to separate the rack body assembly 2. The detachable long bolts 5 release the rack body assembly 2 from the multiple sets of tooth assemblies 3, allowing for batch replacement of the tooth assemblies 3. Then, the long bolts 5 and multiple sets of fastening bolts 6 are reinstalled.

Claims

1. A wear-resistant automotive steering rack, characterized in that, include: Spindle assembly (1); Rack body assembly (2), with two sets of rack body assemblies (2) respectively disposed at both ends of the spindle assembly (1); Tooth assembly (3), multiple sets of tooth assemblies (3) are equally spaced on the upper part of two sets of rack body assemblies (2); Wear-resistant blocks (4) are symmetrically embedded in the upper part of each set of tooth components (3) in two adjacent sets of wear-resistant blocks (4). The material of each set of wear-resistant blocks (4) is high carbon chromium steel or carburized steel. The wear resistance of the steering rack is enhanced by the contact between each set of wear-resistant blocks (4) and the gear tooth surface.

2. The wear-resistant automotive steering rack according to claim 1, characterized in that, Also includes: Long bolts (5), each set of long bolts (5) are threaded between each set of rack body assembly (2) and multiple sets of tooth assemblies (3). By disassembling and assembling the long bolts (5), multiple sets of tooth assemblies (3) can be replaced after multiple sets of wear blocks (4) show wear, reducing replacement cost and replacement time.

3. The wear-resistant automotive steering rack according to claim 1, characterized in that, Also includes: Fastening bolts (6) are threadedly connected between the spindle assembly (1) and the two sets of rack body assemblies (2). The rack body assembly (2) can be removed and fixed by disassembling and assembling the multiple sets of fastening bolts (6), which helps to replace the tooth assembly (3).

4. The wear-resistant automotive steering rack according to claim 1, characterized in that, The spindle assembly (1) includes: Main spindle (11); Groove 1 (12), two sets of groove 1 (12) are opened at both ends of the main shaft (11), and the dimensions of the two sets of groove 1 (12) and the two sets of rack body assemblies (2) are adapted to each other.

5. The wear-resistant automotive steering rack according to claim 1, characterized in that, The rack body assembly (2) includes: The rack body (21) is located inside the groove (12); Groove II (22), multiple sets of groove II (22) are equally spaced on the upper part of the rack body (21).

6. The wear-resistant automotive steering rack according to claim 1, characterized in that, The tooth assembly (3) includes: Teeth (31); Mounting slots (32), two sets of mounting slots (32) are symmetrically opened on the upper part of the teeth (31), and the dimensions of the mounting slots (32) and the wear-resistant blocks (4) are compatible; The base (33) is fixedly connected to the lower part of the tooth (31), and each set of the base (33) is located inside each set of grooves (22) and the sizes are compatible.

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