Mounting position structure of steering drive axle master pin of loading machine
By adding a plug mounting seat and a plug to the bottom of the kingpin mounting hole in the axle housing, the problem of difficult replacement of the kingpin sleeve of the loader steering drive axle was solved, achieving both ease of maintenance and protection of the parts.
Patent Information
- Application Number
- CN202421244746.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The kingpin mounting holes of the existing loader steering drive axle are closed, making it difficult to replace the kingpin bushing and impossible to disassemble with conventional tools.
A plug mounting seat is added to the bottom of the kingpin mounting hole of the axle housing, and a plug is added between the plug mounting seat and the kingpin sleeve to form a small clearance fit, which facilitates the removal of the kingpin sleeve by tools.
It simplifies the replacement process of the kingpin bushing, reduces maintenance difficulty, prevents grease loss, prevents external impurities from entering, and extends the life of parts.
Smart Images
Figure CN222346643U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a steering drive axle assembly of a loader, in particular to a kingpin mounting structure of a steering drive axle of a loader. Background Art
[0002] A common structure of the steering drive axle of a loader in the prior art is as follows: Figure 1 As shown, the steering part includes a kingpin 1, a thrust ball bearing 2, a kingpin sleeve 3, a steering knuckle 4, a bolt 5, and an axle housing 6. The half-shaft assembly 7 passes through the shaft holes of the axle housing 6 and the steering knuckle 4. Due to space limitations, the kingpin mounting hole of the axle housing 6 is not penetrated, and the end of the kingpin mounting hole is in a closed state. Because the inner hole of the sleeve is small, when the kingpin sleeve is worn and needs to be replaced, the conventional puller cannot disassemble the kingpin sleeve, which makes it difficult for users to maintain it. Summary of the invention
[0003] The utility model aims to solve the above defects and provide a loader steering drive axle kingpin installation structure which is simple in structure, safe and reliable in use and convenient in maintenance, so as to solve the problem of maintenance difficulty caused by the kingpin installation hole of the axle housing not being penetrated in the prior art.
[0004] To achieve the above purpose, the utility model provides a kingpin mounting structure of a steering drive axle of a loader, comprising a kingpin 1, a thrust ball bearing 2, a kingpin sleeve 3, a steering knuckle 4, a bolt 5, a bridge housing 6, a plug cover mounting seat 6-1, a half-axle assembly 7, and a plug cover 8; the kingpin mounting hole of the bridge housing 6 is a through hole, a plug cover mounting seat 6-1 is additionally provided at the bottom of the kingpin mounting hole of the bridge housing 6, a through hole matching the kingpin mounting hole is provided in the middle of the plug cover mounting seat 6-1 and in a circular shape, and the width of the circular ring is 3mm; the plug cover 8 is provided between the kingpin sleeve 3 and the plug cover mounting seat 6-1, the plug cover 8 is a circular steel plate, the outer diameter of which is 0.5mm smaller than the kingpin hole of the bridge housing, and the thickness of which is 1.5mm, and the gap between the plug cover 8 and the kingpin sleeve 3 after assembly is 0.2mm.
[0005] The kingpin installation structure of the steering drive axle of the loader is constructed by changing the kingpin installation hole of the bridge housing 6 into a through hole, adding a plug cover installation seat 6-1 in the kingpin hole of the bridge housing 6, and adding a plug cover 8 between the plug cover installation seat 6-1 and the kingpin sleeve 3. When the kingpin sleeve 3 needs to be replaced, after removing the kingpin 1, the steering knuckle 4, the half-axle assembly 7, etc., the kingpin sleeve 3 can be taken out by knocking with a tool from the through hole of the plug cover installation seat 6-1. The operation is simple and no special removal tools are required. At the same time, the small clearance matching relationship between the plug cover 8 and the kingpin sleeve 3 and the kingpin hole of the bridge housing 6 can effectively keep the grease between the kingpin 1 and the kingpin sleeve 3 from flowing out, and can also prevent the entry of sand and stones from the outside to cause accelerated wear of related parts.
[0006] The utility model discloses a kingpin installation structure for a loader steering drive axle, which has the following beneficial effects:
[0007] 1. By optimizing the structure, when the user needs to replace the kingpin sleeve, the maintenance difficulty can be reduced, and the maintenance operation is convenient and efficient;
[0008] 2. The kingpin installation position of the steering drive axle of the loader has a simple and compact structure, low manufacturing cost and reliable quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 The invention is a main cross-sectional schematic diagram of the structure of the kingpin installation position of the steering drive axle of a loader in the prior art.
[0010] Figure 2 The utility model is a main sectional schematic diagram of the structure of the kingpin installation position of a steering drive axle of a loader.
[0011] Figure 3 yes Figure 1 Schematic diagram of the partially enlarged structure.
[0012] Figure numerals: kingpin 1, thrust ball bearing 2, kingpin sleeve 3, steering knuckle 4, bolt 5, bridge housing 6, plug cover mounting seat 6-1, half-axle assembly 7, plug cover 8. DETAILED DESCRIPTION
[0013] The specific implementation of the structure of the kingpin installation position of the steering drive axle of a loader of the utility model is further described in detail below in conjunction with the accompanying drawings.
[0014] Figure 2-Figure 3 As shown, the utility model is a loader steering drive axle kingpin mounting structure comprising a kingpin 1, a thrust ball bearing 2, a kingpin sleeve 3, a steering knuckle 4, a bolt 5, a bridge housing 6, a plug cover mounting seat 6-1, a half-axle assembly 7, and a plug cover 8; the kingpin mounting hole of the bridge housing 6 is a through hole, a plug cover mounting seat 6-1 is additionally provided at the bottom of the kingpin mounting hole of the bridge housing 6, a through hole matching the kingpin mounting hole is provided in the middle of the plug cover mounting seat 6-1 and in a circular shape, and the width of the circular ring is 3mm; the plug cover 8 is provided between the kingpin sleeve 3 and the plug cover mounting seat 6-1, the plug cover 8 is a circular steel plate, the outer diameter of which is 0.5mm smaller than the kingpin hole of the bridge housing, and the thickness of which is 1.5mm, and the gap between the plug cover 8 and the kingpin sleeve 3 after assembly is 0.2mm.
[0015] The maintenance and disassembly operation method of the kingpin installation structure of the steering drive axle of a loader in the utility model is as follows:
[0016] When the kingpin sleeve 3 needs to be replaced due to wear, after removing the relevant components on the wheel side, the kingpin 1, steering knuckle 4, half-shaft assembly 7, and thrust ball bearing 2 are removed in turn. At this point, only the kingpin sleeve 3 and the plug cover 8 remain in the kingpin hole of the bridge housing 6. At this time, a small iron rod or other tools can be used to support the plug cover 8 from the outside of the plug cover mounting seat 6-1 hole, and then the small iron rod can be knocked with an iron rod. After the plug cover 8 is subjected to force, the kingpin sleeve 3 can be pushed out.
Claims
1. A kingpin mounting structure for a steering drive axle of a loader, comprising a kingpin (1), a thrust ball bearing (2), a kingpin sleeve (3), a steering knuckle (4), a bolt (5), an axle housing (6), and a half-axle assembly (7); wherein: It also includes a plug cover (8) and a plug cover mounting seat (6-1); the kingpin mounting hole of the bridge housing (6) is a through hole, and a plug cover mounting seat (6-1) is additionally provided at the bottom of the kingpin mounting hole of the bridge housing (6); a through hole matching the kingpin mounting hole is provided in the middle of the plug cover mounting seat (6-1) and is in a circular ring shape, and the width of the circular ring is 3mm; the plug cover (8) is arranged between the kingpin sleeve (3) and the plug cover mounting seat (6-1), and the plug cover (8) is a circular steel plate, and its outer diameter is 0.5mm smaller than the kingpin hole of the bridge housing, and its thickness is 1.5mm. After assembly, the gap between the plug cover (8) and the kingpin sleeve (3) is 0.2mm.