Protrusion amount measuring gauge equipment applied to refrigerator compressor

Abstract

The utility model provides a projection amount measuring gauge device applied to a refrigerator compressor, and relates to the field of compressor detection. The protrusion amount measuring gauge equipment applied to the refrigerator compressor comprises a mounting base, fixed protrusions are fixedly connected to the bottom of the mounting base, positioning pins are fixedly embedded in the bottom surfaces of two adjacent fixed protrusions, a contact block is arranged in the center of the bottom of the mounting base, and the contact block is connected with a contact measuring head. According to the protrusion amount measuring gauge equipment applied to the refrigerator compressor, the positioning pin below the mounting base is aligned with the threaded hole above the compressor piston for positioning, the fixing protrusion has magnetism and can be attracted and fixed to a compressor body, and rapid positioning between the measuring gauge and the compressor is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of compressor testing, specifically a measuring tool for measuring protrusions on refrigerator compressors. Background Technology

[0002] Measuring the height of the piston crown allows for the indirect calculation of the piston's protrusion. Protrusion refers to the height difference between the piston crown and its reference surface. Excessive or insufficient protrusion will affect the normal operation of the compressor.

[0003] The measured and machined piston is reinstalled into the compressor and adjusted and tested to ensure that the clearance between the piston height and the cylinder head height is within the normal range.

[0004] The existing method for measuring the protrusion of the pump body piston suffers from problems such as inaccurate positioning, long alignment time, and large measurement errors. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a measuring tool for measuring protrusions on refrigerator compressors, which solves the problems of inaccurate positioning, long alignment time, and large measurement errors in the existing pump body piston protrusion measurement process.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a protrusion measuring tool for use on a refrigerator compressor, comprising a mounting base, wherein a fixed protrusion is fixedly connected to the bottom of the mounting base, wherein a positioning pin is fixedly embedded on the bottom surface of two adjacent fixed protrusions, and a contact block is provided at the center of the bottom of the mounting base, the contact block being connected to a contact measuring head.

[0009] The top of the mounting base is fixed to the connector, the top of the connector is fixedly connected to the instrument frame, a dial indicator is installed inside the instrument frame, a cavity is provided inside the connector, a spring is provided inside the cavity, the top of the spring is fixed to the top of the cavity, the bottom of the spring is fixed to the top plate, the bottom of the top plate is fixed to the guide rod, the bottom of the guide rod passes through the connector and is fixed to the contact block, and a position sensor is fixed on the inner wall of the cavity and directly below the top plate.

[0010] Preferably, the position sensor is a proximity sensor.

[0011] Preferably, the contact surface of the contact measuring head is a circular plane.

[0012] Preferably, the positioning pin is adapted to the main body threaded hole above the compressor piston, and the positioning pin is inserted into the threaded hole on the compressor for positioning.

[0013] Preferably, the fixing protrusion is a magnetic contact component, which can be magnetically attracted and fixed to the compressor body.

[0014] Preferably, the dial indicator is a digital display instrument.

[0015] Preferably, the data from the position sensor is processed by a processor and displayed on a digital dial indicator.

[0016] (III) Beneficial Effects

[0017] This utility model provides a measuring tool for measuring protrusions on refrigerator compressors. It has the following advantages:

[0018] 1. This protrusion measuring fixture is used on refrigerator compressors. The positioning pin under the mounting base is aligned with the threaded hole above the compressor piston for positioning. The fixed protrusion is magnetic and can be attracted and fixed to the compressor body, which facilitates quick positioning between the measuring fixture and the compressor.

[0019] 2. This protrusion measurement fixture is used on refrigerator compressors. During measurement, the measuring head makes surface contact with the top surface of the piston. The piston's movement stroke can cause the measuring head to be displaced by force. The position sensor inside the connector can detect the change in distance between the top plate and the position sensor, making it convenient to detect the highest point of the piston's movement and effectively improving measurement accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a partial cross-sectional view of the structure of this utility model;

[0022] Figure 3 This is a side view diagram of the structure of this utility model.

[0023] The components include: 1. Mounting base; 2. Fixing protrusion; 3. Positioning pin; 4. Connector; 5. Instrument frame; 6. Dial indicator; 7. Contact block; 8. Contact measuring head; 9. Cavity; 10. Guide rod; 11. Top plate; 12. Spring; and 13. Position sensor. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] This utility model embodiment provides a measuring tool for measuring protrusions on a refrigerator compressor, such as... Figure 1-3 As shown, the device includes a mounting base 1, with a fixed protrusion 2 fixedly connected to the bottom of the mounting base 1. The fixed protrusion 2 is a magnetic contact component, which can be magnetically attracted and fixed to the compressor body. The bottom surfaces of two adjacent fixed protrusions 2 are fixedly embedded with positioning pins 3, which are adapted to the threaded holes on the compressor body above the piston. The positioning pins 3 are inserted into the threaded holes on the compressor for positioning.

[0026] like Figure 1 As shown, a contact block 7 is provided at the center of the bottom of the mounting base 1. The contact block 7 is cylindrical and is connected to the contact measuring head 8. The contact surface of the contact measuring head 8 is a circular plane. When measurement is required, the piston moves to contact the contact measuring head 8.

[0027] like Figure 1-2 As shown, the top of the mounting base 1 is fixed to the connector 4, and the top of the connector 4 is fixedly connected to the instrument frame 5. The instrument frame 5 is equipped with a dial gauge 6, which is a digital display instrument that can display the digital variables to be measured. Compared with pointer display, it has a more efficient and accurate effect.

[0028] like Figure 2 As shown, the connector 4 has a cavity 9 inside, which is a cylindrical space. A spring 12 is installed inside the cavity 9. The top of the spring 12 is fixed to the top of the cavity 9, and the bottom of the spring 12 is fixed to the top plate 11. The spring 12 facilitates the return of the contact measuring head 8 to its original position. The bottom of the top plate 11 is fixed to the guide rod 10. The bottom of the guide rod 10 passes through the connector 4 and is fixed to the contact block 7. When the contact measuring head 8 is displaced, it can drive the guide rod 10 and the top plate 11 to move. A position sensor 13 is fixed on the inner wall of the cavity 9 and directly below the top plate 11. The position sensor 13 can measure the distance change between itself and the top plate 11, and the value is displayed on the dial gauge 6 after being processed by the processor.

[0029] Furthermore, the position sensor 13 is a proximity sensor.

[0030] Furthermore, dial indicator 6 is a digital display instrument.

[0031] Furthermore, the data from the position sensor 13 is processed by the processor and displayed on the digital dial indicator 6.

[0032] Working principle: During use, the positioning pin 3 under the mounting base 1 is aligned with the threaded hole above the compressor piston for positioning, which facilitates quick positioning between the measuring instrument and the compressor. During measurement, the contact measuring head 8 makes surface contact with the top surface of the piston. The piston movement stroke can cause the contact measuring head 8 to be displaced by force. The position sensor 13 set inside the connecting part 4 can detect the change in distance between the top plate 11 and the position sensor 13, which facilitates the detection of the highest point of the piston movement and effectively improves the measurement accuracy.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A measuring fixture for protrusion measurement on a refrigerator compressor, comprising a mounting base (1), characterized in that: The bottom of the mounting base (1) is fixedly connected to a fixed protrusion (2), wherein a positioning pin (3) is fixedly embedded on the bottom surface of two adjacent fixed protrusions (2), and a contact block (7) is provided at the center of the bottom of the mounting base (1), and the contact block (7) is connected to the contact measuring head (8). The top of the mounting base (1) is fixed to the connector (4), the top of the connector (4) is fixedly connected to the instrument frame (5), a dial gauge (6) is installed inside the instrument frame (5), a cavity (9) is provided inside the connector (4), a spring (12) is provided inside the cavity (9), the top of the spring (12) is fixed to the top of the cavity (9), the bottom of the spring (12) is fixed to the top plate (11), the bottom of the top plate (11) is fixed to the guide rod (10), the bottom of the guide rod (10) passes through the connector (4) and is fixed to the contact block (7), and a position sensor (13) is fixed on the inner wall of the cavity (9) and directly below the top plate (11).

2. The protrusion measuring fixture equipment used on a refrigerator compressor according to claim 1, characterized in that: The position sensor (13) is a proximity sensor.

3. The protrusion measuring fixture equipment used on a refrigerator compressor according to claim 1, characterized in that: The contact surface of the contact measuring head (8) is a circular plane.

4. The protrusion measuring fixture equipment used on a refrigerator compressor according to claim 1, characterized in that: The positioning pin (3) is adapted to the main body threaded hole above the compressor piston, and the positioning pin (3) is inserted into the threaded hole on the compressor for positioning.

5. The protrusion measuring fixture equipment used on a refrigerator compressor according to claim 1, characterized in that: The fixing protrusion (2) is a magnetic contact component, and the fixing protrusion (2) can be magnetically attracted and fixed to the compressor body.

6. The protrusion measuring fixture equipment used on a refrigerator compressor according to claim 1, characterized in that: The dial indicator (6) is a digital display instrument.

7. The protrusion measuring fixture equipment according to claim 1, characterized in that: The data from the position sensor (13) is processed by the processor and displayed on the digital dial indicator (6).

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