Air suspension thrust bearing welding positioning tool

Abstract

The utility model discloses an air suspension thrust bearing welding positioning tool, which belongs to the technical field of welding positioning and comprises a cooling base, and two threaded holes are formed in the side surface of the cooling base and are used for mounting an air pipe quick connector for cooling; the thrust bearing seat positioning flange is mounted on the cooling base, and an inner hole is formed in the center of the upper end of the thrust bearing seat positioning flange; the lower end of the positioning column is inserted into the inner hole, and the upper end is provided with a positioning column hole; the supporting plate is arranged at the upper end of the positioning column; the multiple pressing studs are evenly distributed in the circumferential direction of the supporting plate, the pressing studs are arranged on the supporting plate, and the heights of the pressing studs are adjustable; the multiple anti-skid pieces are installed at the bottom ends of the corresponding pressing studs. And a plurality of positioning pins are uniformly distributed on the thrust bearing seat positioning flange. Welding positioning and no displacement are achieved through cooperation of the thrust bearing seat positioning flange, the positioning column, the supporting plate, the pressing stud and the anti-skid piece, the welding efficiency is improved, and the quality of a welded bearing is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of welding positioning technology, and specifically relates to a welding positioning fixture for an air suspension thrust bearing. Background Technology

[0002] The foundation of centrifugal compressor development: Since its invention by Swiss engineer Karl von Teban in the early 20th century, the centrifugal compressor has been widely used and continuously developed in the industrial field. Traditional centrifugal compressors include types with oil-lubricated bearings, but these have limitations in some application scenarios. In the air conditioning and refrigeration field, scroll or screw compressors commonly used in small-capacity refrigeration units are limited by volumetric efficiency, reaching a bottleneck in energy efficiency. Meanwhile, the increasingly stringent energy-saving requirements for air conditioning in large buildings have driven the miniaturization of centrifugal compressors. Other industrial sectors have also placed higher demands on compressors in terms of energy saving, high efficiency, and miniaturization, providing impetus for the development of air-suspension centrifugal compressors.

[0003] The air-suspended centrifugal compressor integrates several key technologies, including foil dynamic pressure gas bearings, high-speed centrifugal impellers, rotor dynamics, and high-speed motors. The problems encountered in the welding and manufacturing process of air-suspended thrust bearings are as follows:

[0004] 1. Welding and positioning of the thrust bearing foil and bearing housing is not easy and is prone to deviation;

[0005] 2. Only one set of thrust bearings can be operated at a time during welding positioning, and the foil is prone to displacement during welding, affecting production efficiency. Utility Model Content

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A welding and positioning fixture for an air-suspension thrust bearing includes:

[0008] A cooling base, wherein two threaded holes are provided on the side for installing quick-connect fittings for air pipes to cool down the temperature;

[0009] A thrust bearing housing positioning flange is installed on the cooling base, and an inner hole is provided at the center of the upper end of the thrust bearing housing positioning flange.

[0010] A positioning post, the lower end of which is inserted into the inner hole, and the upper end of which is provided with a positioning post hole;

[0011] A support plate is disposed at the upper end of the positioning column, and the axial movement of the support plate is restricted by a limiting stud.

[0012] Multiple clamping studs are evenly distributed along the circumference of the support plate, and the clamping studs are mounted on the support plate with adjustable height.

[0013] Multiple anti-slip components are provided, and the multiple anti-slip components are correspondingly provided with the multiple clamping studs and installed at the bottom end of the corresponding clamping studs;

[0014] Multiple locating pins are distributed on the thrust bearing housing locating flange for positioning the thrust bearing housing locating flange relative to the thrust bearing housing.

[0015] Furthermore, the thread on the limiting stud is a first external thread, which is configured to cooperate with the internal thread of the positioning pin hole. The support plate is provided with a positioning threaded hole, and the thread on the clamping stud is a second external thread, which is configured to cooperate with the positioning threaded hole.

[0016] Furthermore, six of each of the clamping studs and the anti-slip components are provided.

[0017] Furthermore, the anti-slip component is a rubber pad.

[0018] Furthermore, both the positioning post and the inner hole have hexagonal cross-sections.

[0019] Furthermore, the two threaded holes are arranged vertically.

[0020] Furthermore, three positioning pins are provided.

[0021] The beneficial effects of this utility model are:

[0022] This utility model achieves welding positioning and non-displacement through the cooperation of the thrust bearing seat positioning flange and positioning column, support plate, clamping stud and anti-slip parts, reducing the error rate during welding, improving welding efficiency and ensuring the quality of the bearing after welding.

[0023] This utility model allows for the installation of quick-connect air pipes through two threaded holes in the cooling base, enabling air and water flow. This provides a cooling effect during welding, reducing the deformation of the air-suspended thrust bearing welding point during welding. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a welding positioning fixture for an air suspension thrust bearing according to this utility model.

[0025] Figure 2 This is a partial structural diagram of a welding positioning fixture for an air-suspension thrust bearing according to this utility model. Figure 1 ;

[0026] Figure 3 This is a partial structural diagram of a welding positioning fixture for an air-suspension thrust bearing according to this utility model. Figure 2 ;

[0027] In the diagram: 1. Cooling base; 2. Thrust bearing seat positioning flange; 3. Positioning pin; 4. Support plate; 5. Clamping stud; 6. Rubber pad; 7. Limiting stud; 8. Positioning pin. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Example 1

[0030] refer to Figures 1 to 3 A welding and positioning fixture for an air-suspension thrust bearing, comprising:

[0031] Cooling base 1 has two threaded holes on its side for installing quick-connect fittings for cooling.

[0032] Preferably, the two threaded holes are arranged one above the other.

[0033] In practice, compressed air or cooling water is introduced into the cooling base 1 before welding, which can play a role in cooling and reducing temperature during the welding process. With the right-angle air pipe quick connector, the angle can be rotated, and quick installation and disassembly can be achieved.

[0034] Thrust bearing housing positioning flange 2 is installed on cooling base 1, and the center of the upper end of the thrust bearing housing positioning flange 2 is provided with an inner hole.

[0035] Positioning pin 3, the lower end of which is inserted into the inner hole, and the upper end is provided with a positioning pin hole;

[0036] Preferably, both the positioning post 3 and the cross-section of the inner hole are hexagonal to prevent displacement during subsequent operations.

[0037] In practice, the positioning and installation of the subsequent support plate is achieved by installing and cooperating the positioning flange and positioning column of the thrust bearing seat; the support plate is limited by installing the limit stud and positioning column.

[0038] Support plate 4 is located at the upper end of positioning post 3 and its axial movement is restricted by limiting screw 7;

[0039] In this embodiment, the limiting stud 7 is used to restrict the axial movement of the support plate 4;

[0040] Multiple clamping studs 5 are evenly distributed along the circumference of the support plate 4. The clamping studs 5 are set on the support plate 4 and their height is adjustable.

[0041] In practice, the thrust foil is positioned and fixed by installing the support plate and clamping studs; the position of the foil is finely adjusted to be close to the positioning flange of the thrust bearing seat, and the clamping stud assembly can clamp the foil so that it is in a near-circular state for welding.

[0042] Multiple anti-slip components are provided, and multiple anti-slip components are correspondingly provided with multiple clamping studs 5 and installed at the bottom end of the corresponding clamping studs 5;

[0043] Preferably, the anti-slip component is a rubber pad 6, and the clamping stud 5 is threadedly connected to the rubber pad 6. The function of the rubber pad 6 is to clamp the thrust bearing foil to prevent displacement and damage to the coating surface.

[0044] Multiple locating pins 8 are evenly distributed on the thrust bearing housing locating flange 2 for the installation and positioning of the thrust bearing housing locating flange 2 and the thrust bearing housing.

[0045] Preferably, three positioning pins are provided.

[0046] In practice, the thrust bearing housing is equipped with three locating pin holes and locating pins for installation and engagement to achieve the positioning of the thrust bearing housing; the positioning of the thrust bearing housing is also achieved through the installation and engagement of the thrust bearing housing locating flange and locating pins.

[0047] This utility model achieves welding positioning and non-displacement through the cooperation of the thrust bearing seat positioning flange 2 and positioning column 3, support plate 4, clamping stud 5 and rubber pad 6, reducing the error rate during welding, improving welding efficiency, and ensuring the quality of the bearing after welding.

[0048] This utility model has two threaded holes on the cooling base 1, which can be used to install quick-connect air pipes to enable air and water supply. This can achieve the effect of cooling and reducing temperature during the welding process. The cooling base 1 reduces the deformation of the welding point of the air suspension thrust bearing during welding.

[0049] In this embodiment, the thread on the limiting stud 7 is a first external thread, which is configured to cooperate with the internal thread of the positioning pin hole. The support plate 4 is provided with a positioning threaded hole, and the thread on the clamping stud 5 is a second external thread, which is configured to cooperate with the positioning threaded hole.

[0050] In practice, a through hole is provided at the center of the support plate 4.

[0051] In practical implementation, the auxiliary thrust bearing of this utility model is welded in multiple quantities. The support plate is provided with multiple positioning threaded holes, which are respectively connected to the clamping studs. The multiple clamping studs fix multiple sets of thrust bearings to be positioned on the thrust bearing seat. This effectively solves the problem that only one set of thrust bearing foil can be positioned and welded at a time when welding and positioning thrust bearings. It also solves the problem that it is not convenient to mass-produce thrust bearings during welding, which leads to difficulty in positioning and has great limitations.

[0052] In this embodiment, six clamping studs 5 and six anti-slip components are provided.

[0053] In this embodiment, the support plate is provided with six positioning threaded holes, and the thrust bearing foil is fixed by installing the clamping studs 5.

[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model are included within the protection scope of this utility model.

Claims

1. A welding and positioning fixture for an air-suspension thrust bearing, characterized in that, include: A cooling base, wherein two threaded holes are provided on the side for installing quick-connect fittings for air pipes to cool down the temperature; A thrust bearing housing positioning flange is installed on the cooling base, and an inner hole is provided at the center of the upper end of the thrust bearing housing positioning flange. A positioning post, the lower end of which is inserted into the inner hole, and the upper end of which is provided with a positioning post hole; A support plate is disposed at the upper end of the positioning column, and the axial movement of the support plate is restricted by a limiting stud. Multiple clamping studs are evenly distributed along the circumference of the support plate, and the clamping studs are mounted on the support plate with adjustable height. Multiple anti-slip components are provided, and the multiple anti-slip components are correspondingly provided with the multiple clamping studs and installed at the bottom end of the corresponding clamping studs; Multiple locating pins are distributed on the thrust bearing housing locating flange for positioning the thrust bearing housing locating flange relative to the thrust bearing housing.

2. The welding and positioning fixture for an air-suspension thrust bearing according to claim 1, characterized in that, The thread on the limiting stud is a first external thread, which is configured to cooperate with the internal thread of the positioning pin hole. The support plate is provided with a positioning threaded hole. The thread on the clamping stud is a second external thread, which is configured to cooperate with the positioning threaded hole.

3. The welding and positioning fixture for an air-suspension thrust bearing according to claim 1, characterized in that, Both the clamping studs and the anti-slip components are provided in six portions.

4. The welding and positioning fixture for an air-suspension thrust bearing according to claim 1, characterized in that, The anti-slip component is a rubber pad.

5. The welding and positioning fixture for an air-suspension thrust bearing according to claim 1, characterized in that, Both the positioning post and the inner hole have hexagonal cross-sections.

6. The welding and positioning fixture for an air-suspension thrust bearing according to claim 1, characterized in that, The two threaded holes are arranged vertically.

7. The welding and positioning fixture for an air-suspension thrust bearing according to claim 1, characterized in that, There are three positioning pins.

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