Anti-explosion refrigeration compressor with long service life and durability

Abstract

The long-service-life durable anti-explosion refrigeration compressor comprises a compressor body and vibration reduction assemblies arranged at the lower end of the compressor body, and each vibration reduction assembly comprises a supporting piece fixed to the lower end of the compressor body and vibration reduction connecting structures installed at the two opposite ends of the supporting piece and connected with an installation base body. The vibration reduction connecting structure comprises a connecting bolt, a vibration isolation sleeve, a vibration reduction pad and a positioning sleeve arranged at the end of the supporting piece, the upper portion of the vibration isolation sleeve is arranged in the positioning sleeve so that the upper end of the vibration isolation sleeve can abut against the lower surface of the supporting plate, and at least part of the peripheral wall of the vibration isolation sleeve abuts against the inner edge of a lower end opening of the positioning sleeve. The lower end of the vibration isolation sleeve is positioned on the anti-vibration pad, and a screw rod of the connecting bolt sequentially penetrates through the mounting base part, the anti-vibration pad and the vibration isolation sleeve and then is fixedly connected with the supporting plate. According to the compressor, the compressor body is installed on the installation base body through the vibration reduction assembly, generated vibration is weakened and absorbed in the use process of the compressor, and therefore the service life of the compressor body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor structures, in particular to an explosion-proof refrigeration compressor with long service life and durability. Background Art

[0002] The current explosion-proof refrigeration compressor includes a compressor housing. Inside the cavity of the compressor housing, there are at least a stationary scroll, a moving scroll, a crankshaft, a rotor, a stator, an excitation coil, and an anti-rotation ring. The crankshaft is located at the central position of the cavity of the compressor housing. The outer shaft sleeve of the crankshaft is connected and fixed to the rotor. The stator is fixedly connected with the internal excitation coil. The anti-rotation ring is fixed at the upper end of the rotor and is connected to the moving scroll through a bracket at the other end. The moving scroll is fixed on the bracket. The stationary scroll is located on the moving scroll and the upper end of the crankshaft. The bottom of the compressor housing is located on the mounting base. There is an exhaust port on one side of the top of the compressor housing. There is an air intake port between the upper end of the stator and the said bracket. On one side of the compressor housing opposite to the exhaust port, there is an electrical connection terminal. Among them, the butt joint terminal is encapsulated with an epoxy resin mixture, which ensures the abrasion resistance of the outer insulating skin of the cable and the tensile strength during daily use. The good outer insulating skin avoids the safety hazards caused by static electricity generated between the core wires to the mine environment, and greatly improves the explosion-proof performance and safety reliability of the product. However, since the refrigeration compressor is prone to generate large vibrations during operation, the internal parts are likely to be damaged during continuous use, resulting in a low service life of the explosion-proof refrigeration compressor. Summary of the Utility Model

[0003] The purpose of the utility model is to design a closed explosion-proof refrigeration compressor to solve the above-mentioned technical deficiencies, and the specific method is as follows.

[0004] The explosion-proof refrigeration compressor with long service life and durability designed by the utility model includes a compressor body and a vibration damping component arranged at the lower end of the compressor body. The vibration damping component includes a support member fixed to the lower end of the compressor body, and a vibration damping connection structure installed at opposite ends of the support member and connected to the installation base. The vibration damping connection structure includes a connection bolt, a vibration isolation sleeve, a vibration damping pad, and a positioning sleeve arranged at the end of the support member. The upper part of the vibration isolation sleeve is placed inside the positioning sleeve so that the upper end of the vibration isolation sleeve abuts against the lower surface of the support plate, and at least part of the outer peripheral wall of the vibration isolation sleeve abuts against the inner edge of the lower port of the positioning sleeve. The lower end of the vibration isolation sleeve is positioned on the vibration damping pad. The screw of the connection bolt sequentially penetrates through the installation base, the vibration damping pad, and the vibration isolation sleeve and is fixedly connected to the support plate.

[0005] Preferably, the vibration isolation sleeve is a sleeve body that gradually expands from top to bottom, so that the middle part of the outer peripheral wall of the vibration isolation sleeve abuts against the inner edge of the lower port of the positioning sleeve.

[0006] Preferably, the upper surface of the vibration damping pad is provided with protrusions, and the lower port of the vibration isolation sleeve is sleeved on the protrusions so that the vibration isolation sleeve is limited in the radial direction.

[0007] Preferably, the protrusion is a frustum of a cone with a smaller diameter at the upper end than at the lower end to match the shape of the lower port of the vibration isolation sleeve.

[0008] Preferably, it further includes a nut, and the screw rod of the connecting bolt sequentially passes through the mounting base, the vibration damping pad, the vibration isolation sleeve and the support plate and is threadedly connected to the nut.

[0009] Preferably, the vibration isolation sleeve is made of a metal material.

[0010] Preferably, the vibration damping pad is of a solid structure and is made of a rubber material.

[0011] For the enclosed explosion-proof refrigeration compressor designed by the present utility model, the vibration damping assembly is used to mount the compressor body on the mounting base, so as to weaken and absorb the generated vibration during the use of the compressor, thereby prolonging the service life of the compressor body. Description of the Drawings

[0012] Figure 1 is the overall structure diagram (1);

[0013] Figure 2 is the structure diagram (1) of the vibration isolation sleeve;

[0014] Figure 3 is the structure diagram (2) of the vibration isolation sleeve;

[0015] Figure 4 is the structure diagram (3) of the vibration isolation sleeve;

[0016] Figure 5 is the structure diagram of the vibration damping pad.

[0017] In the figures: 1. Compressor body; 2. Vibration damping assembly; 21. Support member; 22. Vibration damping structure; 220. Nut; 221. Connecting bolt; 222. Positioning sleeve; 223. Vibration isolation sleeve; 224. Vibration damping pad; 225. Protrusion; 3. Mounting base; Detailed Embodiments

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0019] Embodiment:

[0020] As Figures 1 - 5As shown in the figure, the long-life and durable explosion-proof refrigeration compressor described in this embodiment includes a compressor body 1 and a vibration damping component 2 provided at the lower end of the compressor body 1. That is, a support member 21 of the vibration damping component 2 is welded and fixed to the lower end of the housing of the compressor body 1, so that the support member 21 is installed on the installation base 3 through the vibration damping component 2, and the vibration generated by the compressor body 1 is weakened and absorbed through the vibration damping effect of the vibration damping component 2.

[0021] In this embodiment, the vibration damping component 2 includes a support member 21 fixed to the lower end of the compressor body 1 and a vibration damping connection structure installed at opposite ends of the support member 21 and connected to the installation base 3. The support member 21 is a metal plate structure, the vibration isolation sleeve 223 is made of a metal material, and the vibration damping pad 224 is a solid structure and is made of a rubber material.

[0022] Preferably, the vibration damping connection structure includes a nut 220, a connecting bolt 221, a vibration isolation sleeve 223, a vibration damping pad 224, and a positioning sleeve 222 provided at the end of the support member 21. The positioning sleeve 222 and the support member 21 are integrally combined. The upper part of the vibration isolation sleeve 223 is placed in the positioning sleeve 222 so that the upper end of the vibration isolation sleeve 223 abuts against the lower surface of the support plate, and at least part of the outer peripheral wall of the vibration isolation sleeve 223 abuts against the inner edge of the lower port of the positioning sleeve 222. That is, the vibration isolation sleeve 223 is a sleeve body formed with a gradually expanding trend from top to bottom, so that the middle part of the outer peripheral wall of the vibration isolation sleeve 223 abuts against the inner edge of the lower port of the positioning sleeve 222. The lower end of the vibration isolation sleeve 223 is positioned on the vibration damping pad 224. That is, a protrusion 225 is provided on the upper surface of the vibration damping pad 224, and the lower port of the vibration isolation sleeve 223 is sleeved on the protrusion 225 so that the vibration isolation sleeve 223 is limited in the radial direction. The screw of the connecting bolt 221 sequentially passes through the installation base, the vibration damping pad 224, the vibration isolation sleeve 223, and the support plate and is threadedly connected to the nut 220. Finally, the support member 21 is installed on the installation base 3 through the vibration damping connection structure.

[0023] Preferably, the protrusion 225 is a frustum of a cone with a smaller upper diameter than the lower diameter, which is adapted to the shape of the lower port of the vibration isolation sleeve 223, and its structural setting makes the structural design more reasonable and reliable.

Claims

1. A long-life and durable explosion-proof refrigeration compressor, characterized in that, It includes a compressor body (1) and a vibration damping assembly (2) provided at the lower end of the compressor body (1). The vibration damping assembly (2) includes a support member (21) fixed to the lower end of the compressor body (1), and a vibration damping connection structure installed at opposite ends of the support member (21) and connected to the installation base (3). The vibration damping connection structure includes a connection bolt (221), a vibration isolation sleeve (223), a vibration damping pad (224), and a positioning sleeve (222) provided at the end of the support member (21). The upper part of the vibration isolation sleeve (223) is placed inside the positioning sleeve (222) so that the upper end of the vibration isolation sleeve (223) abuts against the lower surface of the support plate, and at least a part of the outer peripheral wall of the vibration isolation sleeve (223) abuts against the inner edge of the lower port of the positioning sleeve (222). The lower end of the vibration isolation sleeve (223) is positioned on the vibration damping pad (224). The screw of the connection bolt (221) passes through the installation base, the vibration damping pad (224), and the vibration isolation sleeve (223) in sequence and is fixedly connected to the support plate.

2. The long-life and durable explosion-proof refrigeration compressor according to claim 1, characterized in that, The vibration isolation sleeve (223) is a sleeve body formed with a gradually expanding trend from top to bottom, so that the middle part of the outer peripheral wall of the vibration isolation sleeve (223) abuts against the inner edge of the lower port of the positioning sleeve (222).

3. The long-life and durable explosion-proof refrigeration compressor according to claim 1 or 2, characterized in that, The upper surface of the vibration damping pad (224) is provided with a protrusion (225), and the lower port of the vibration isolation sleeve (223) is sleeved on the protrusion (225) so that the vibration isolation sleeve (223) is limited in the radial direction.

4. The long-life and durable explosion-proof refrigeration compressor according to claim 1, characterized in that, The protrusion (225) is a frustum of a cone with a smaller upper diameter than the lower diameter, so as to be adapted to the shape of the lower port of the vibration isolation sleeve (223).

5. The long-life and durable explosion-proof refrigeration compressor according to claim 1, characterized in that, It further includes a nut (220). The screw of the connection bolt (221) passes through the installation base, the vibration damping pad (224), the vibration isolation sleeve (223), and the support plate in sequence and is threadedly connected to the nut (220).

6. The long-life and durable explosion-proof refrigeration compressor according to claim 1, characterized in that, The vibration isolation sleeve (223) is made of a metal material.

7. The long-life and durable explosion-proof refrigeration compressor according to claim 1, wherein The vibration damping pad (224) is a solid structure and is made of a rubber material.

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