Base device for mounting mechanical shaft seal

Abstract

The utility model discloses a base device for mechanical shaft seal installation, which comprises a base body, an inner cavity is arranged on the base body, a crankshaft supporting column extending vertically is arranged in the inner cavity, the bottom of the crankshaft supporting column is fixedly connected with the bottom surface of the inner cavity, and the upper end of the crankshaft supporting column is higher than the upper end surface of the base body. A supporting hole is formed in the upper end face of the crankshaft supporting column, and vertically-extending positioning pins are distributed on the portion, located on the periphery of the crankshaft supporting column, of the upper end face of the base body. The bottom face of an aluminum piece is supported in the circumferential direction of the base body, the crankshaft supporting column supports the small end of a mechanical shaft seal of the aluminum piece, the protruding position of the small end of the mechanical shaft seal is inserted into the supporting hole and is in clearance fit with the supporting hole, and the two positioning pins are matched with the round holes in the outer ring of the aluminum piece to position the aluminum piece. The small end of the mechanical shaft seal is supported through the crankshaft supporting column, and the mechanical shaft seal assembly of the aluminum piece is positioned and fixed through the supporting hole and the positioning pin.

Description

Technical Field

[0001] The utility model relates to a base device for installing a mechanical shaft seal, in particular to a mechanical shaft seal for installing an aluminum part of an automobile air-conditioning compressor, and belongs to the technical field of compressor assembly and manufacturing. Background Art

[0002] The mechanical seal on the aluminum part of an automotive air-conditioning compressor requires support from a base during installation. However, the seal needs to be aligned with the component to be installed. The base device in the prior art cannot secure the component to be installed and cannot accurately position it, which affects the installation efficiency of the seal, thereby reducing production efficiency and delaying the production process. Utility Model Content

[0003] The purpose of the utility model is to provide a base device for installing a mechanical shaft seal, so as to solve the technical problem that the base device in the prior art cannot support and fix the components to be installed when in use.

[0004] The present invention adopts the following technical solution: a base device for installing a mechanical shaft seal, which includes a base body, an inner cavity is provided on the base body, a vertically extending crankshaft support column is provided in the inner cavity, the bottom of the crankshaft support column is fixedly connected to the bottom surface of the inner cavity, the upper end of the crankshaft support column is higher than the upper end surface of the base body, a support hole is provided on the upper end surface of the crankshaft support column, and vertically extending positioning pins are evenly distributed on the upper end surface of the base body and located on the outer periphery of the crankshaft support column.

[0005] The base body is provided with a threaded hole on the bottom surface of the inner cavity, and a stud is fixedly connected to the lower end surface of the crankshaft support column, and the stud is threadedly connected in the threaded hole.

[0006] An arc-shaped hole is opened on the side of the base body, and the arc-shaped hole extends along the circumference of the base body. A handle is connected to the side of the crankshaft support column and passes through the arc-shaped hole.

[0007] The arc-shaped hole is a structure with a high middle and low ends, and a step surface is provided between the two end portions and the middle portion of the arc-shaped hole.

[0008] The handle is a two-section structure, the first section of the handle is fixedly connected to the crankshaft support column, and the second section of the handle is fixedly connected to the first section of the handle by bolts and then passes through the arc hole.

[0009] A groove is provided on the circumference of the base body, and the groove extends downward from the end surface of the base body.

[0010] There are four grooves, which are evenly distributed on the circumference of the base body, and bolt holes are opened on the bottoms of the grooves.

[0011] There are two locating pins, which are symmetrically distributed on both sides of the crankshaft support column.

[0012] The beneficial effects of the present invention are as follows: the present invention utilizes the circumference of the base body to support the bottom surface of the aluminum part, the crankshaft support column supports the small end position of the mechanical shaft seal of the aluminum part, the protrusion of the small end of the mechanical shaft seal is inserted into the support hole and matches the gap with the support hole, and the two positioning pins match the circular holes on the outer ring of the aluminum part to position the aluminum part. The present invention supports the small end of the mechanical shaft seal by the crankshaft support column, and positions and fixes the mechanical shaft seal assembly of the aluminum part by the support hole and the positioning pin. Therefore, when installing the mechanical shaft seal structure of the compressor aluminum part, the positioning is accurate, the support is stable, and the installation is convenient, thereby saving operation time and improving installation efficiency. Moreover, after the mechanical shaft seal of the compressor aluminum part is installed, the base device of the present invention can quickly separate the aluminum part from the base device.

[0013] As a preferred solution, the stud thread at the bottom of the crankshaft support column is assembled in the inner cavity of the base, and the crankshaft support column can be driven to rotate by the handle to fine-tune the position of the crankshaft support column. The purpose is to find the matching position of the crankshaft and the mechanical shaft seal so that the protrusion at the small end of the mechanical shaft seal is just inserted into the support hole.

[0014] As a preferred solution, when the handle rotates, it is limited by the arc hole. After the handle drives the crankshaft support column to rotate into place, the handle is just stuck at the end position of the arc hole, and the step faces the handle to limit it to prevent the handle from moving and causing the crankshaft support column to shake.

[0015] As a preferred solution, the four grooves on the circumference of the base body can reduce the overall weight of the base, and the bolt holes in the bottom of the grooves are used to install bolts to fix the base body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a base device for mounting a mechanical shaft seal according to an embodiment of the present invention;

[0017] Figure 2 yes Figure 1 Plan view of

[0018] Figure 3 yes Figure 2 It is a top view;

[0019] Figure 4 This is a diagram of the use status of a base device for installing a mechanical shaft seal according to an embodiment of the present utility model.

[0020] In the figure: 1-base body, 1.1-inner cavity, 1.2-arc hole, 1.3-groove, 1.4-bolt hole, 2-crankshaft support column, 2.1-support hole, 3-locating pin, 4-handle. DETAILED DESCRIPTION

[0021] The following is a detailed description of the embodiments of the present invention. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0022] The structure of the base device for mounting a mechanical shaft seal according to an embodiment of the present invention is as follows: Figures 1 to 3 As shown, the base device for mounting a mechanical shaft seal in this embodiment includes a base body 1, the base body 1 having an inner cavity 1.1, a vertically extending crankshaft support column 2 disposed in the inner cavity 1.1, the bottom of the crankshaft support column 2 being fixedly connected to the bottom surface of the inner cavity 1.1, the upper end of the crankshaft support column 2 being higher than the upper end surface of the base body 1, a support hole 2.1 being disposed on the upper end surface of the crankshaft support column 1.1, and vertically extending locating pins 3 being evenly distributed on the upper end surface of the base body 1 and located on the outer periphery of the crankshaft support column 2. In this embodiment, there are two locating pins 3, symmetrically distributed on both sides of the crankshaft support column 2. The positions of the locating pins correspond to the positions of the circular holes in the outer ring of the compressor aluminum part.

[0023] The base body 1 is provided with a threaded hole on the bottom surface of the inner cavity 1.1, and a stud is fixedly connected to the lower end surface of the crankshaft support column 2, and the stud is threadedly connected in the threaded hole. The side of the base body 1 is provided with an arc-shaped hole 1.2, and the arc-shaped hole 1.2 extends circumferentially along the base body 1. The side of the crankshaft support column 2 is connected to a handle 4 that passes through the arc-shaped hole 1.2. The handle 4 is a two-section structure, the first section of the handle is fixedly connected to the crankshaft support column 2, and the second section of the handle is fixedly connected to the first section of the handle by bolts and then passes through the arc-shaped hole 1.2. The arc-shaped hole 1.2 is a structure with a high middle and low ends, and there is a step surface between the two end parts and the middle part of the arc-shaped hole 1.2.

[0024] The base body 1 is provided with grooves 1.3 on its circumference, extending downward from the end surface of the base body 1. There are four grooves 1.3, evenly distributed on the circumference of the base body, and bolt holes 1.4 are provided on the bottoms of the grooves 1.3.

[0025] In this embodiment, when installing the mechanical seal of the compressor aluminum part, Figure 4As shown, the base body 1 circumferentially supports the bottom surface of the aluminum component. The crankshaft support column supports the small end of the mechanical seal. The raised portion of the mechanical seal inserts into the support hole and fits into the clearance. Two locating pins engage circular holes on the outer ring of the aluminum component to position the component. A stud at the bottom of the crankshaft support column threads into the inner cavity of the base. A handle rotates the crankshaft support column to fine-tune its position. The goal is to find the proper fit between the crankshaft and the mechanical seal, ensuring that the raised portion of the mechanical seal fits neatly into the support hole. As the handle rotates, the handle is locked into position by the curved hole. Once the handle rotates the crankshaft support column into position, the handle snaps into place at the end of the curved hole. The step prevents the handle from moving and causing the crankshaft support column to wobble. The handle can be made of a slightly elastic material to facilitate movement and positioning. Four grooves circumferentially around the base body reduce the overall weight of the base. Bolt holes at the bottom of the grooves are used to secure the base body.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A base device for mounting a mechanical shaft seal, comprising a base body, characterized in that: The base body is provided with an inner cavity, in which a vertically extending crankshaft support column is provided. The bottom of the crankshaft support column is fixedly connected to the bottom surface of the inner cavity. The upper end of the crankshaft support column is higher than the upper end surface of the base body. A support hole is provided on the upper end surface of the crankshaft support column. Vertically extending positioning pins are evenly distributed on the upper end surface of the base body and located on the outer periphery of the crankshaft support column.

2. The base device for mounting a mechanical shaft seal according to claim 1, characterized in that: The base body is provided with a threaded hole on the bottom surface of the inner cavity, and a stud is fixedly connected to the lower end surface of the crankshaft support column, and the stud is threadedly connected in the threaded hole.

3. The base device for mounting a mechanical shaft seal according to claim 2, characterized in that: An arc-shaped hole is opened on the side of the base body, and the arc-shaped hole extends along the circumference of the base body. A handle is connected to the side of the crankshaft support column and passes through the arc-shaped hole.

4. The base device for mounting a mechanical shaft seal according to claim 3, characterized in that: The arc-shaped hole is a structure with a high middle and low ends, and a step surface is provided between the two end portions and the middle portion of the arc-shaped hole.

5. The base device for mounting a mechanical shaft seal according to claim 3, characterized in that: The handle is a two-section structure, the first section of the handle is fixedly connected to the crankshaft support column, and the second section of the handle is fixedly connected to the first section of the handle by bolts and then passes through the arc hole.

6. The base device for mounting a mechanical shaft seal according to claim 1, characterized in that: A groove is provided on the circumference of the base body, and the groove extends downward from the end surface of the base body.

7. The base device for mounting a mechanical shaft seal according to claim 6, characterized in that: There are four grooves, which are evenly distributed on the circumference of the base body, and bolt holes are opened on the bottoms of the grooves.

8. The base device for mounting a mechanical shaft seal according to claim 1, characterized in that: There are two locating pins, which are symmetrically distributed on both sides of the crankshaft support column.

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