Loader drive axle oil seal assembly guide tool

Abstract

The utility model discloses a guide tool for assembling an oil seal of a drive axle of a loading machine. The guide tool comprises a guide tool base and a guide tool pressure plate, the guide tool base is in a circular tube shape, an inner hole of the guide tool base is larger than the outer circle of the oil seal so that the guide tool base and the oil seal can be in clearance fit when the oil seal is assembled, and an annular protrusion is arranged on the lower end face of the guide tool base and serves as a guide tool base positioning ring. An annular groove is formed in the end face of the oil seal seat, and when the oil seal is assembled, the guide tool base positioning ring is embedded into the annular groove of the oil seal seat, so that the guide tool base and the oil seal seat are located on the same axis. The guide tool pressing disc is composed of a press-in section and a spigot section, and the press-in section is in clearance fit with an inner hole of the guide tool base when the oil seal is assembled. The oil seal assembly is simple and compact in structure, convenient and efficient in oil seal assembly operation, good in sealing effect and long in service life, and solves the problems that when an existing oil seal is assembled, a lip is prone to being scratched, an outer circle is prone to being scratched due to inclination, sealing performance of the oil seal is affected, and oil leakage is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of an auxiliary device for assembling a main transmission assembly of a loader drive axle, in particular to an assembly and alignment tool for an oil seal of a loader drive axle. Background Art

[0002] The common tooling structure used in the assembly of the main transmission oil seal of the existing loader drive axle is: insert the oil seal into the tooling shaft for centering, then flatten the end face of the tooling with the oil seal, and then knock the tooling to insert the oil seal into the oil seal seat. The defects of this structural tooling are that the lip of the oil seal is easily scratched during assembly, and the oil seal is easily tilted and the outer circle of the oil seal is damaged when the oil seal is pressed into the oil seal seat. These defects affect the sealing performance of the oil seal and easily cause oil leakage of the oil seal, which ultimately reduces the service life of the drive axle. Summary of the invention

[0003] The purpose of the utility model is to solve the above defects and provide a loader drive axle oil seal assembly guide tool with simple and compact structure, convenient and efficient oil seal assembly operation, good oil seal sealing effect and long service life, so as to solve the problems of the prior art that the lip of the oil seal is easily scratched during assembly, the outer circle is easily scratched due to tilting, affecting the sealing performance of the oil seal and causing oil leakage.

[0004] To achieve the above purpose, the utility model loader drive axle oil seal assembly guide tool comprises a guide tool base 3 and a guide tool pressure plate 4; the guide tool base 3 is in a circular tube shape, and its inner hole is larger than the outer circle of the oil seal 2 to form a clearance fit between the two when assembling the oil seal, and the lower end surface of the guide tool base 3 is provided with a circular ring protrusion as a guide tool base positioning ring 5; a circular ring groove is provided on the end surface of the oil seal seat 1, and the guide tool base positioning ring 5 is embedded in the circular ring groove of the oil seal seat 1 when assembling the oil seal, so that the guide tool base 3 and the oil seal seat 1 are on the same axial line; the guide tool pressure plate 4 is composed of a press-in section and a stop section, and the press-in section forms a clearance fit with the inner hole of the guide tool base 3 when assembling the oil seal.

[0005] The utility model of the guide tool for loader driving axle oil seal assembly has the following technical characteristics and beneficial effects:

[0006] 1. The tooling does not need to use the oil seal lip for positioning, and can be guided during the process of pressing the oil seal into the oil seal seat 1. The oil seal can be assembled after being guided, and there will be no tilted assembly phenomenon, which solves the problem that the lip of the oil seal in the prior art is easily scratched during assembly, and the tilted assembly is easy to scratch the outer circle, affecting the sealing performance and causing oil leakage of the oil seal;

[0007] 2. The structure is simple and compact, the oil seal assembly operation is convenient and efficient, the oil seal has good sealing effect and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1The utility model is a main sectional structural schematic diagram of the working state of the oil seal assembly and guide tooling of the loader driving axle.

[0009] Figure numerals: oil seal seat 1, oil seal 2, guide tool base 3, guide tool pressure plate 4, guide tool base positioning ring 5. DETAILED DESCRIPTION

[0010] The specific implementation of the loader drive axle oil seal assembly and correction tooling of the utility model will be further described in detail below in conjunction with the accompanying drawings.

[0011] Figure 1 As shown, the utility model loader drive axle oil seal assembly guide tool comprises a guide tool base 3 and a guide tool pressure plate 4; the guide tool base 3 is in a circular tube shape, and its inner hole is larger than the outer circle of the oil seal 2, so as to form a clearance fit between the two when assembling the oil seal, and the lower end surface of the guide tool base 3 is provided with a circular ring protrusion as a guide tool base positioning ring 5; a circular ring groove is provided on the end surface of the oil seal seat 1, and the guide tool base positioning ring 5 is embedded in the circular ring groove of the oil seal seat 1 when assembling the oil seal, so that the guide tool base 3 and the oil seal seat 1 are on the same axial line; the guide tool pressure plate 4 is composed of a press-in section and a stop section, and the press-in section forms a clearance fit with the inner hole of the guide tool base 3 when assembling the oil seal.

[0012] When assembling the oil seal 2, first lay the oil seal seat 1 flat, then embed the positioning ring 5 of the guide tool base into the circular groove on the end face of the oil seal seat 1. At this time, the guide tool base 3 and the oil seal seat 1 are on the same axial line; then put the oil seal 2 into the inner hole of the guide tool base 3. Since the outer circle of the oil seal 2 is smaller than the inner hole of the guide tool base 3, the oil seal 2 can be easily put in; finally, put the guide tool pressure plate 4 into the guide tool base 3, and press the oil seal 2 into the inner hole of the oil seal seat 1, thus completing the assembly and alignment operation of the oil seal 2.

Claims

1. A guide tool for assembling an oil seal of a loader drive axle, characterized by: It comprises a guide tool base (3) and a guide tool pressure plate (4); the guide tool base (3) is in a circular tube shape, and its inner hole is larger than the outer circle of the oil seal (2) so as to form a clearance fit between the two when the oil seal (2) is assembled; the lower end surface of the guide tool base (3) is provided with a circular ring protrusion as a guide tool base positioning ring (5); a circular ring groove is provided on the end surface of the oil seal seat (1); when the oil seal is assembled, the guide tool base positioning ring (5) is embedded in the circular ring groove of the oil seal seat (1) so that the guide tool base (3) and the oil seal seat (1) are on the same axial center line; the guide tool pressure plate (4) is composed of a press-in section and a stop section; the press-in section forms a clearance fit with the inner hole of the guide tool base (3) when the oil seal is assembled.

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