Grinding device for thrust surface of compressor cylinder body

Abstract

The utility model discloses a grinding device for a thrust surface of a compressor cylinder body, relates to the technical field of compressor processing, and is mainly used for solving the problem that the thrust surface of the cylinder body is excessively ground once the grinding surface of a grinding block is not parallel to the thrust surface of the cylinder body because the grinding block is fixedly arranged on a grinding rod at present. According to the main structure, the lower end face of a grinding connecting rod is connected with a grinding block mounting base capable of synchronously rotating with the grinding connecting rod, and the upper end face of the grinding block mounting base is in spherical sliding contact fit with the lower end face of the grinding connecting rod. According to the grinding device for the thrust surface of the compressor cylinder body, the grinding surface of the grinding block can be in parallel attached contact with the thrust surface of the cylinder body to be ground, so that the smoothness of the ground thrust surface of the cylinder body and the plane integrating degree of the thrust surface of the cylinder body and the mounting surface of a valve plate can be ensured, and the product quality of the compressor is further ensured.

Description

Technical Field

[0001] This utility model relates to the field of compressor processing technology, and in particular to a grinding device for the thrust surface of a compressor cylinder. Background Technology

[0002] As times progress, refrigerators, as an essential household appliance, have become a part of everyday life for ordinary people. Refrigeration is achieved through the refrigeration system within the refrigerator—namely, the compressor. The compressor works by compressing and moving the refrigerant, causing it to switch between a gaseous and a liquid state. When the liquid refrigerant transforms into a gaseous state, it absorbs a large amount of heat, thus achieving the purpose of refrigeration.

[0003] When the compressor is in suction mode, its cylinder thrust surface must remain sealed to the valve plate mounting surface. This is because if gas leakage occurs at this point, the compressor's cooling efficiency will be greatly reduced, failing to achieve the desired cooling effect while also consuming energy and generating noise. Therefore, during the grinding process of the compressor cylinder thrust surface, the smoothness of the ground cylinder thrust surface and the degree of planar fit between the cylinder thrust surface and the valve plate mounting surface are crucial.

[0004] However, since the grinding blocks in current grinding devices are fixedly mounted on the grinding rod, if the grinding surface of the grinding block is not parallel to the thrust surface of the cylinder to be ground, the thrust surface of the cylinder will be over-ground, resulting in it not being able to fit tightly with the valve plate mounting surface, which in turn affects the product quality of the compressor. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for the thrust surface of a compressor cylinder. This device enables the grinding surface of the grinding block and the thrust surface of the cylinder to be ground to be in parallel and close contact, thereby ensuring the smoothness of the thrust surface of the cylinder after grinding, the planar fit between the thrust surface of the cylinder and the valve plate mounting surface, and thus ensuring the product quality of the compressor.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is: a grinding device for the thrust surface of a compressor cylinder, including a vertically arranged rotating shaft, a grinding connecting rod coaxially fixedly installed at the lower end of the rotating shaft, a grinding block mounting seat that can rotate synchronously with the lower end face of the grinding connecting rod, and a spherical sliding contact fit between the upper end face of the grinding block mounting seat and the lower end face of the grinding connecting rod.

[0007] As a further improvement of this utility model, the grinding connecting rod is a tubular structure, and the grinding connecting rod is provided with an anti-detachment component to prevent the grinding block mounting seat from falling downward.

[0008] As a further improvement of this utility model, the anti-detachment component includes a vertically arranged connecting bolt, and the outer wall of the connecting bolt and the inner wall of the grinding connecting rod are threadedly connected. The lower end of the connecting bolt is connected to the upper end of the grinding block mounting seat through an anti-detachment tension spring vertically arranged in the grinding connecting rod.

[0009] As a further improvement of this utility model, a T-shaped groove is provided on the lower end face of the connecting bolt, and a T-shaped connector is engaged in the T-shaped groove. The lower end of the T-shaped connector is provided with a through hole for the upper end hook of the anti-detachment tension spring to be engaged.

[0010] As a further improvement of this utility model, the upper end of the grinding block mounting base is vertically provided with a tension spring mounting tube extending into the grinding connecting rod. The outer wall of the tension spring mounting tube and the inner wall of the grinding connecting rod are in clearance fit, and a tension spring pin is horizontally provided inside the tension spring mounting tube for the lower end hook of the anti-detachment tension spring to be engaged.

[0011] As a further improvement of this utility model, a first mounting step is provided on the lower outer wall of the grinding connecting rod around its axis, and a second mounting step is provided on the outer wall of the grinding block mounting seat around its axis. A connecting sleeve is provided between the first mounting step and the second mounting step, which is sleeved on the grinding connecting rod and the grinding block mounting seat and enables the grinding connecting rod and the grinding block mounting seat to rotate synchronously.

[0012] As a further improvement of this utility model, transmission pins are provided on the opposite surfaces of the first mounting step and the second mounting step, and limiting grooves for the transmission pins to be engaged are provided on the upper and lower surfaces of the connecting sleeve.

[0013] Beneficial effects

[0014] Compared with the prior art, the advantages of the grinding device for the thrust surface of a compressor cylinder according to this utility model are:

[0015] 1. In this device, the grinding block mounting base and the grinding connecting rod rotate synchronously, and the upper end face of the grinding block mounting base and the lower end face of the grinding connecting rod are in spherical sliding contact. Therefore, the grinding block fixedly installed on the lower end face of the grinding block mounting base has a non-rigid contact with the cylinder to be ground, and the grinding block mounting base can adaptively adjust its angle to keep the grinding surface of the grinding block and the thrust surface of the cylinder to be ground in planar contact. This ensures the smoothness of the cylinder thrust surface after grinding, the planar fit between the cylinder thrust surface and the valve plate mounting surface, and thus ensures the product quality of the compressor.

[0016] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is an axial sectional view of the present invention;

[0020] Figure 3 This is a structural diagram showing the connection between the anti-detachment component and the grinding block mounting base in this utility model.

[0021] Wherein: 1-rotating shaft; 2-grinding connecting rod; 3-connecting bolt; 31-T-shaped slot; 4-T-shaped connector; 5-anti-detachment tension spring; 6-tension spring pin; 7-grinding block mounting base; 71-tension spring mounting tube; 8-connecting sleeve; 81-limiting slot; 9-transmission pin. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0025] Example

[0026] The specific embodiments of this utility model are as follows: Figure 1-3As shown, a grinding device for the thrust surface of a compressor cylinder includes a vertically arranged rotating shaft 1, which is connected to a drive mechanism and can rotate axially under the drive of the drive mechanism. A grinding connecting rod 2 is coaxially fixedly installed at the lower end of the rotating shaft 1. In this embodiment, the upper part of the grinding connecting rod 2 is inserted into the rotating shaft 1, and the outer wall of the insertion section of the grinding connecting rod 2 is keyed to the inner wall of the rotating shaft 1. Therefore, the grinding connecting rod 2 can be driven to rotate axially by the rotating shaft 1.

[0027] In this device, a grinding block mounting base 7 that can rotate synchronously with the lower end face of the grinding connecting rod 2 is connected to the lower end face of the grinding connecting rod 2, and the upper end face of the grinding block mounting base 7 and the lower end face of the grinding connecting rod 2 are in spherical sliding contact fit. The grinding block is fixedly mounted on the lower end face of the grinding block mounting base 7 by fixing screws.

[0028] In use, first install the rotating shaft 1 of the device on the power output end of the grinding machine drive mechanism, and install the cylinder to be ground on the worktable of the grinding machine; then, adjust the horizontal position of the device so that the lower grinding surface of the grinding block installed on the grinding block mounting seat 7 is facing the thrust surface of the cylinder to be ground; next, lower the horizontal height of the device so that the lower grinding surface of the grinding block is in parallel contact with the thrust surface of the cylinder to be ground; then, the grinding machine can be started to begin grinding the thrust surface of the cylinder.

[0029] Because the grinding block mounting base 7 and the grinding connecting rod 2 can rotate synchronously, and the upper end face of the grinding block mounting base 7 and the lower end face of the grinding connecting rod 2 have a spherical sliding contact fit, the grinding block fixedly installed on the lower end face of the grinding block mounting base 7 has a non-rigid contact with the cylinder to be ground. Furthermore, the grinding block mounting base 7 can adaptively adjust its angle, ensuring that the grinding surface of the grinding block and the thrust surface of the cylinder to be ground maintain a planar fit. This guarantees the smoothness of the cylinder thrust surface after grinding, the planar fit between the cylinder thrust surface and the valve plate mounting surface, and thus ensures the product quality of the compressor.

[0030] In this device, such as Figure 2As shown, the grinding connecting rod 2 has a tubular structure, and its interior is equipped with an anti-detachment component to prevent the grinding block mounting seat 7 from falling downwards. Specifically, the anti-detachment component includes a vertically arranged connecting bolt 3, with a threaded connection between the outer wall of the connecting bolt 3 and the inner wall of the grinding connecting rod 2. The lower end of the connecting bolt 3 is connected to the upper end of the grinding block mounting seat 7 via an anti-detachment tension spring 5 vertically arranged inside the grinding connecting rod 2. This design is intended to provide an upward pulling force to the grinding block mounting seat 7 through the tension of the anti-detachment tension spring 5, ensuring that it maintains a spherical sliding contact with the lower end face of the grinding connecting rod 2 without falling downwards. Furthermore, when dealing with different types of grinding blocks, it may be necessary to simultaneously replace different grinding block mounting seats 7, at which point the overall weight of the grinding block mounting seat 7 and the grinding block will change. In this situation, by tightening the connecting bolt 3, its horizontal height within the grinding connecting rod 2 can be adjusted, thereby adjusting the tension length of the anti-detachment spring 5. This, in turn, adjusts the upward pulling force of the anti-detachment spring 5 on the grinding block mounting seat 7, ensuring that the new grinding block mounting seat 7 maintains a spherical sliding contact with the lower end face of the grinding connecting rod 2 without falling downwards. This also improves the applicability of the entire device.

[0031] In this embodiment, as Figure 3 As shown, in order to achieve the connection between the connecting bolt 3 and the anti-detachment spring 5, a T-shaped groove 31 is provided on the lower end face of the connecting bolt 3. A T-shaped connector 4 is engaged in the T-shaped groove 31. The lower end of the T-shaped connector 4 is provided with a through hole for the upper end hook of the anti-detachment spring 5 to be engaged.

[0032] Meanwhile, to achieve the connection between the grinding block mounting base 7 and the anti-detachment tension spring 5, a tension spring mounting tube 71 extending into the grinding connecting rod 2 is vertically provided at the upper end of the grinding block mounting base 7, and a tension spring pin 6 is horizontally provided inside the tension spring mounting tube 71 for the lower end hook of the anti-detachment tension spring 5 to engage. In this embodiment, to avoid affecting the deflection of the grinding block mounting base 7, the outer wall of the tension spring mounting tube 71 and the inner wall of the grinding connecting rod 2 are clearance-fitted. The two ends of the tension spring pin 6 are detachably plugged into the side walls of the tension spring mounting tube 71.

[0033] In addition, to achieve synchronous rotation between the grinding connecting rod 2 and the grinding block mounting base 7, the device has a first mounting step on the lower outer wall of the grinding connecting rod 2 around its axis, and a second mounting step on the outer wall of the grinding block mounting base 7 around its axis; a connecting sleeve 8 is provided between the first mounting step and the second mounting step, which is sleeved on the grinding connecting rod 2 and the grinding block mounting base 7 and enables the grinding connecting rod 2 and the grinding block mounting base 7 to rotate synchronously.

[0034] Specifically, two transmission pins 9 are provided on the opposite surfaces of the first and second mounting steps, arranged around the axis of the mounting steps; correspondingly, the upper and lower end faces of the connecting sleeve 8 are provided with limiting grooves 81 for the transmission pins 9 to engage. Through the engagement of the pins 9 and the limiting grooves 81, the grinding connecting rod 2 can drive the grinding block mounting base 7 to rotate synchronously. At the same time, in order to avoid affecting the deflection of the grinding block mounting base 7, the outer wall of the pins 9 and the inner wall of the limiting grooves 81 are both clearance fit.

[0035] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. A grinding device for the thrust surface of a compressor cylinder, comprising a vertically arranged rotating shaft (1), characterized in that, A grinding connecting rod (2) is coaxially fixedly installed at the lower end of the rotating shaft (1). A grinding block mounting seat (7) that can rotate synchronously with the lower end face of the grinding connecting rod (2) is connected. The upper end face of the grinding block mounting seat (7) and the lower end face of the grinding connecting rod (2) are in spherical sliding contact fit.

2. The grinding device for the thrust surface of the compressor cylinder according to claim 1, characterized in that, The grinding connecting rod (2) is a tubular structure, and the grinding connecting rod (2) is provided with an anti-detachment component to prevent the grinding block mounting seat (7) from falling downward.

3. The grinding device for the thrust surface of the compressor cylinder according to claim 2, characterized in that, The anti-detachment component includes a vertically arranged connecting bolt (3), and the outer wall of the connecting bolt (3) and the inner wall of the grinding connecting rod (2) are threaded together. The lower end of the connecting bolt (3) is connected to the upper end of the grinding block mounting seat (7) through an anti-detachment tension spring (5) vertically arranged in the grinding connecting rod (2).

4. The grinding device for the thrust surface of the compressor cylinder according to claim 3, characterized in that, The lower end face of the connecting bolt (3) is provided with a T-shaped groove (31), and a T-shaped connector (4) is engaged in the T-shaped groove (31). The lower end of the T-shaped connector (4) is provided with a through hole for the upper end hook of the anti-detachment tension spring (5) to be engaged.

5. The grinding device for the thrust surface of a compressor cylinder according to claim 3 or 4, characterized in that, The upper end of the grinding block mounting base (7) is vertically provided with a tension spring mounting tube (71) extending into the grinding connecting rod (2). The outer wall of the tension spring mounting tube (71) and the inner wall of the grinding connecting rod (2) are in clearance fit. A tension spring pin (6) is horizontally provided inside the tension spring mounting tube (71) for the lower end hook of the anti-detachment tension spring (5) to be engaged.

6. The grinding device for the thrust surface of a compressor cylinder according to claim 1, characterized in that, The lower outer wall of the grinding connecting rod (2) is provided with a first mounting step around its axis, and the outer wall of the grinding block mounting seat (7) is provided with a second mounting step around its axis. A connecting sleeve (8) is provided between the first mounting step and the second mounting step, which is sleeved on the outside of the grinding connecting rod (2) and the grinding block mounting seat (7) and enables the grinding connecting rod (2) and the grinding block mounting seat (7) to rotate synchronously.

7. The grinding device for the thrust surface of a compressor cylinder according to claim 6, characterized in that, The first and second mounting steps are provided with transmission pins (9) on their opposite surfaces, and the upper and lower surfaces of the connecting sleeve (8) are provided with limiting grooves (81) for the transmission pins (9) to be engaged.

Images