Installation device capable of accurately adjusting oil seal propelling distance

Abstract

The utility model discloses an installation device capable of accurately adjusting the propelling distance of an oil seal. The installation device comprises a threaded piece correspondingly sleeved and matched with a shaft piece and a sleeve arranged outside the threaded piece in a sleeving mode and matched with the threaded piece in a threaded mode. Scale marks arranged in the axial direction of the threaded piece are arranged on the periphery of the threaded piece, a positioning space for containing an oil seal is formed between the periphery of the shaft piece and the inner periphery of the sleeve, and the end face of the threaded piece movably abuts against the end face of the oil seal. According to the utility model, the end part of the shaft piece is easily butted, the oil seal is pushed out and mounted by utilizing the threaded piece capable of accurately adjusting the propelling distance, the press-fitting depth of the oil seal along the shaft piece is accurate, and the oil seal is stably mounted in place.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil seal installation, and in particular relates to an installation device for accurately adjusting the advancement distance of the oil seal. Background Art

[0002] Different oil seal types and specifications require different installation methods and tools. Therefore, before installation, the type and specification of the oil seal should be determined, and the appropriate installation method and tools should be selected for operation. At the same time, during the installation process, damage to the oil seal lip and shaft surface should be avoided to ensure the sealing effect and service life.

[0003] There is a CN202021222823.6 oil seal installation tool, which discloses that the rotating handle drives the screw to move in the threaded hole, thereby driving the press sleeve to move. The above oil seal tool has a complex structure and requires higher precision for the coordination of multiple parts. At the same time, there is a situation where disassembly remains unchanged. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide an installation device for accurately adjusting the oil seal push distance, so as to achieve easy docking of the end of the shaft, and use the threaded member that can accurately adjust the push distance to push the oil seal out for installation, the oil seal is pressed along the shaft to an accurate depth, and the oil seal is installed stably and in place. In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] An installation device for accurately adjusting the advancement distance of an oil seal comprises a threaded member that is sleeved and matched with a shaft member, and a sleeve that is sleeved and arranged on the outside of the threaded member and is threadedly matched with the shaft member; the outer periphery of the threaded member is provided with scale lines arranged along its axial direction, a positioning space for accommodating the oil seal is formed between the outer periphery of the shaft member and the inner periphery of the sleeve, and the end face of the threaded member movably abuts against the end face of the oil seal.

[0006] Specifically, the diameter of the shaft element corresponds to and matches the inner circumference of the threaded element.

[0007] Compared with the prior art, the beneficial effects of the installation device for accurately adjusting the oil seal advancement distance of the utility model are mainly reflected in:

[0008] By setting scale lines on the outside of the threaded part, the advancement distance of the threaded part can be intuitively observed and controlled, and then the press-fitting depth of the oil seal can be judged, and the press-fitting position accuracy of the oil seal can be determined; the positioning space accommodates the oil seal, and the end face of the threaded part movably pushes the oil seal for press-fitting operation. The threaded part pushes the oil seal to be pressed stably, and the threaded part is easy to operate, thereby improving the press-fitting efficiency of the oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0010] Figure 2 is a schematic cross-sectional structural diagram of this embodiment;

[0011] The numbers in the figure represent:

[0012] 1 shaft part, 2 threaded part, 21 scale line, 3 sleeve, 4 oil seal, 41 positioning space. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present utility model are clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0014] Example:

[0015] Reference Figure 1-2 As shown, this embodiment is an installation device for accurately adjusting the advancement distance of the oil seal, including a threaded member 2 that is sleeved and matched with the shaft member 1, and a sleeve 3 that is sleeved and arranged on the outside of the threaded member 2 and threadedly matched with the shaft member 1; the outer periphery of the threaded member 2 is provided with scale lines 21 arranged along its axial direction, and a positioning space 41 for accommodating the oil seal 4 is formed between the outer periphery of the shaft member 1 and the inner periphery of the sleeve 3, and the end face of the threaded member 2 movably abuts against the end face of the oil seal 4.

[0016] The diameter of the shaft member 1 corresponds to the inner circumference of the threaded member 2 .

[0017] When applying this embodiment, the oil seal 4 is pre-installed in the positioning space 41, the oil seal 4 is initially positioned on the outer periphery of the shaft 1, and the end face of the sleeve 3 is against the plane end. As the threaded member 2 rotates, the oil seal 4 is pushed forward and transitioned to the deep part of the shaft 1. The installation position of the oil seal 4 is controlled according to the advancement distance of the scale line 21.

[0018] In this embodiment, by setting a scale line 21 on the outside of the threaded member 2, the advancement distance of the threaded member 2 can be intuitively observed and controlled, and then the press-fitting depth of the oil seal 4 can be judged, and the press-fitting position accuracy of the oil seal 4 can be determined; the positioning space 41 accommodates the oil seal 4, and the end surface of the threaded member 2 movably pushes the oil seal 4 for press-fitting operation. The threaded member 2 pushes the oil seal 4 to be press-fitted stably, the threaded member 2 is easy to operate, and the press-fitting efficiency of the oil seal 4 is improved.

[0019] In the description of this specification, the term "specific embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0020] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be based on the scope defined in the attached claims.

Claims

1. An installation device for accurately adjusting the advancing distance of an oil seal, characterized in that: It includes a threaded part that is sleeved and matched with the shaft part, and a sleeve that is sleeved and arranged outside the threaded part and threadedly matched with the shaft part; the outer periphery of the threaded part is provided with scale lines arranged along its axial direction, and a positioning space for accommodating an oil seal is formed between the outer periphery of the shaft part and the inner periphery of the sleeve, and the end face of the threaded part movably abuts against the end face of the oil seal.

2. The installation device for accurately adjusting the oil seal advancement distance according to claim 1 is characterized in that: The diameter of the shaft element matches the inner circumference of the threaded element.

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