Closed anti-explosion refrigeration compressor

Abstract

The utility model discloses a closed explosion-proof refrigeration compressor, which comprises an explosion-proof motor and a refrigeration compressor, an output shaft of the explosion-proof motor is connected with an input shaft of the refrigeration compressor, one end of the explosion-proof motor, which is provided with the output shaft, is provided with a first flange, and one end of the refrigeration compressor, which is provided with the input shaft, is provided with a second flange. After the first flange and the second flange are attached to each other, the first flange and the second flange are connected through a plurality of connecting assemblies, the first flange and the second flange can rotate relatively before bolt connection, the position of the movable plate corresponds to the position of the positioning insertion groove at a time, and then the longitudinal part of the L-shaped plate is inserted into the positioning insertion groove; the fixing holes in the first flange can correspond to the fixing holes in the second flange, so that the two fixing holes can be quickly aligned, and a screw rod of a connecting bolt sequentially penetrates through the through hole, the second flange and the first flange and then is in threaded connection with the connecting hole.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor structures, in particular to a hermetic explosion-proof refrigeration compressor. Background Art

[0002] At present, in a compressor, the connection and fixation between the flange of an electric motor and the flange of a refrigeration compressor are generally achieved through bolt connection. However, since the electric motor and the refrigeration compressor are large in volume and heavy in weight, the alignment of the fixing holes of the two flanges requires multiple adjustments, making it inconvenient to connect the two flanges through bolts. Content of the Utility Model

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

[0004] The hermetic explosion-proof refrigeration compressor designed by the utility model includes an explosion-proof motor and a refrigeration compressor. The output shaft of the explosion-proof motor is connected to the input shaft of the refrigeration compressor. One end of the explosion-proof motor with the output shaft is provided with a first flange, and one end of the refrigeration compressor with the input shaft is provided with a second flange. After the first flange and the second flange are mutually attached, they are connected by a plurality of connection components. Each connection component includes a folding plate, a connection bolt, and a positioning sleeve fixed on the first side of the second flange. The folding plate includes an L-shaped plate and a movable plate. One end of the transverse portion of the L-shaped plate is pin-jointed to one end of the movable plate. The movable plate is movably arranged in the positioning sleeve. A plurality of positioning slots are arranged on the second side of the first flange. The longitudinal portions of each L-shaped plate are respectively inserted into the plurality of positioning slots, so that the first flange and the second flange are between the longitudinal portion of the L-shaped plate and the movable plate. Through holes are arranged on each movable plate and the movable sleeve, and connection holes are arranged on the longitudinal portions of each L-shaped plate. The screw rod of the connection bolt sequentially passes through the through hole, the second flange, and the first flange and is threadedly connected to the connection hole.

[0005] Preferably, at least one side of the movable plate is provided with an elastic buckle, and a buckle groove is arranged on the inner wall of the movable sleeve. The elastic buckle is correspondingly buckled into the buckle groove.

[0006] Preferably, at least one side of the movable plate is provided with a recess. A sphere is arranged on an inner wall of the recess through an elastic sheet, and at least one side of the sphere is buckled into the buckle groove.

[0007] Preferably, a reinforcing convex ring is formed at the outer port of the connection hole on the longitudinal portion of each L-shaped plate.

[0008] Preferably, annular grooves are arranged on the opposite sides of the first flange and the second flange. Sealing rings are respectively embedded in the annular grooves, and the outer wall of the sealing ring is closely attached to the inner wall of the annular groove, so that the first flange and the second flange are sealed.

[0009] Preferably, annular protrusions are provided on the inner walls of the bottoms of the annular grooves, annular recesses are respectively provided on the opposite sides of the sealing ring, and the annular protrusions are correspondingly embedded in the annular recesses.

[0010] Preferably, the planes of the first flange are respectively flush with the planes of the second flange, and the inner wall of the transverse portion of the L-shaped plate is attached to the plane.

[0011] The closed explosion-proof refrigeration compressor designed by the utility model has the following beneficial effects:

[0012] Before the bolt connection, the utility model can make the first flange and the second flange rotate relative to each other, so that the position of the movable plate corresponds to the position of the positioning slot at one time. Then, the longitudinal portion of the L-shaped plate is inserted into the positioning slot, so that the fixing holes on the first flange and the fixing holes on the second flange correspond to each other, thereby quickly aligning the two fixing holes for the screw rod of the connecting bolt to sequentially penetrate through the through hole, the second flange and the first flange and then be threadedly connected to the connecting hole, further fixing the first flange and the second flange to each other. This method makes the connection and installation between the explosion-proof motor and the refrigeration compressor more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram (1);

[0014] Figure 2 is the overall structural schematic diagram (2);

[0015] Figure 3 is the structural schematic diagram of the first flange;

[0016] Figure 4 is the structural schematic diagram of the second flange;

[0017] Figure 5 is the structural schematic diagram of the combination of the second flange and the connection assembly;

[0018] Figure 6 is the structural schematic diagram of the hinged connection between the L-shaped plate and the movable plate.

[0019] In the figure: 1, explosion-proof motor; 10, output shaft; 11, first flange; 12, annular groove; 121, annular protrusion; 13, plane; 14, fixing hole; 2, refrigeration compressor; 20, input shaft; 21, second flange; 3, connection assembly; 31, positioning sleeve; 310, opening; 32, movable plate; 321, depression; 322, elastic piece; 323, sphere; 324, hinge groove; 325, hinge shaft; 33, L-shaped plate; 331, connection hole; 332, reinforcing ring; 333, hinge block; 34, connecting bolt; 35, through hole; 4, sealing ring; 41, annular recess; Detailed implementation mode

[0020] 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 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.

[0021] Embodiment:

[0022] As Figures 1-6 shown, a closed explosion-proof refrigeration compressor described in this embodiment includes an explosion-proof motor 1 and a refrigeration compressor 2. The output shaft 10 of the explosion-proof motor 1 is connected to the input shaft 20 of the refrigeration compressor 2. One end of the explosion-proof motor 1 with the output shaft 10 is provided with a first flange 11, and one end of the refrigeration compressor 2 with the input shaft 20 is provided with a second flange 21. After the first flange 11 and the second flange 21 are mutually attached, they are connected by a plurality of connection components 3. Each of the connection components 3 includes a folding plate, a connection bolt 34, and a positioning sleeve 31 fixed to the first side of the second flange 21. The folding plate includes an L-shaped plate 33 and a movable plate 32. One end of the transverse portion of the L-shaped plate 33 is pin-hinged to one end of the movable plate 32. Among them, a hinge groove 324 is provided at the upper end of the movable plate 32, and a hinge block 333 is provided at one end of the transverse portion of the L-shaped plate 33. The hinge block 333 is fitted in the hinge groove 324, and the hinge groove 324 and the hinge block 333 are hinged by a hinge shaft 325, so that the L-shaped plate 33 can rotate on the movable plate 32. The positioning sleeve 31 is fixed to the second flange 21 by welding.

[0023] The movable plate 32 is movably arranged in the positioning sleeve 31 so that the movable plate 32 can perform telescopic movement in the movable sleeve. A plurality of positioning slots are provided on the second side of the first flange 11. The longitudinal portions of each L-shaped plate 33 are respectively inserted into the plurality of positioning slots, so that the first flange 11 and the second flange 21 are between the longitudinal portions of the L-shaped plate 33 and the movable plate 32. Through holes 35 are provided on each of the movable plates 32 and the movable sleeves, and connection holes 331 are provided on the longitudinal portions of each L-shaped plate 33. The screw of the connection bolt 34 sequentially passes through the through hole 35, the second flange 21, and the first flange 11 and is threadedly connected to the connection hole 331. An opening 310 is provided on the positioning sleeve 31 on the side facing the hexagonal head of the connection bolt 34, so as to facilitate the connection of the connection bolt 34.

[0024] Preferably, each plane 13 of the first flange 11 is flush with each plane 13 of the second flange 21. After the inner wall of the transverse portion of the L-shaped plate 33 is attached to the plane 13, the pin hinge portion between the transverse portion of the L-shaped plate 33 and the movable plate 32 is also located within the positioning sleeve 31 at the same time, so that the L-shaped plate 33 cannot rotate, and further the relative positions of the two flanges are positioned, and the first flange 11 and the second flange 21 are clamped between the longitudinal portion of the L-shaped plate 33 and the movable plate 32.

[0025] In this embodiment, at least one side of the movable plate 32 is provided with an elastic buckle, and a buckle groove is provided on the inner wall of the movable sleeve. The elastic buckle is correspondingly buckled into the buckle groove. Further, at least one side of the movable plate 32 is provided with a recess 321, and a sphere 323 is provided on an inner wall of the recess 321 through an elastic piece 322. Thus, the elastic piece 322, the sphere 323 and the recess 321 are combined with each other to form an elastic buckle, and at least one side of the sphere 323 is buckled into the buckle groove to realize the position positioning of the movable plate 32 after the relative positions of the two flanges are positioned.

[0026] In this embodiment, a reinforcing convex ring 332 is formed at the outer port of the connecting hole 331 on the longitudinal portion of each L-shaped plate 33. The reinforcing convex ring 332 enhances the strength after the L-shaped plate 33 is connected to the connecting bolt 34 and improves the rationality of the structural design.

[0027] In this embodiment, annular grooves 12 are provided on the opposite sides of the first flange 11 and the second flange 21. Sealing rings 4 are respectively embedded in the annular grooves 12, and the outer wall of the sealing ring 4 is in close contact with the inner wall of the annular groove 12, so that the first flange 11 and the second flange 21 are sealed, thereby realizing a closed installation between the explosion-proof motor 1 and the refrigeration compressor 2.

[0028] In this embodiment, annular protrusions 121 are provided on the bottom inner walls of the annular grooves 12. Annular recesses 41 are provided on the opposite sides of the sealing ring 4. The annular protrusions 121 are correspondingly embedded in the annular recesses 41 to prevent the sealing ring 4 from shifting, making the positioning of the sealing ring 4 stable. The sealing ring 4 can be made of rubber material.

[0029] Finally, each component in the two flanges and the connecting assembly 3 is made of metal material.

Claims

1. A closed explosion-proof refrigeration compressor, comprising an explosion-proof motor (1) and a refrigeration compressor (2), wherein the output shaft (10) of the explosion-proof motor (1) is connected to the input shaft (20) of the refrigeration compressor (2), characterized in that: The explosion-proof motor (1) has an output shaft (10) at one end thereof provided with a first flange (11), and the refrigeration compressor (2) has an input shaft (20) at one end thereof provided with a second flange (21). After the first flange (11) and the second flange (21) are fitted together, the two are connected via a plurality of connection components (3). Each of the connection components (3) comprises a folding plate, a connection bolt (34) and a positioning sleeve (31) fixed to a first side of the second flange (21). The folding plate comprises an L-shaped plate (33) and a movable plate (32). One end of the transverse portion of the L-shaped plate (33) is hingedly connected to a pin at one end of the movable plate (32). The movable plate (32) is movably arranged in the positioning sleeve (31), and a plurality of positioning slots are arranged on the second side of the first flange (11). The longitudinal parts of each L-shaped plate (33) are respectively inserted into the plurality of positioning slots, so that the first flange (11) and the second flange (21) are located between the longitudinal part of the L-shaped plate (33) and the movable plate (32). A through hole (35) is arranged on each movable plate (32) and the movable sleeve, and a connecting hole (331) is arranged on the longitudinal part of each L-shaped plate (33). The screw of the connecting bolt (34) passes through the through hole (35), the second flange (21) and the first flange (11) in sequence and is then threadedly connected to the connecting hole (331).

2. The closed explosion-proof refrigeration compressor according to claim 1, characterized in that: At least one side of the movable plate (32) is provided with an elastic buckle, and the inner wall of the movable sleeve is provided with a buckle groove, and the elastic buckle is buckled into the buckle groove accordingly.

3. The closed explosion-proof refrigeration compressor according to claim 2, characterized in that: At least one side of the movable plate (32) is provided with a recess (321), an inner wall of the recess (321) is provided with a ball (323) via an elastic sheet (322), and at least one side of the ball (323) is buckled into the buckling groove.

4. The closed explosion-proof refrigeration compressor according to claim 1, characterized in that: A reinforcing convex ring (332) is formed on the longitudinal portion of each L-shaped plate (33) at the outer end of the connecting hole (331).

5. The closed explosion-proof refrigeration compressor according to claim 1, characterized in that: Annular grooves (12) are provided on opposite sides of the first flange (11) and the second flange (21), and sealing rings (4) are respectively embedded in each annular groove (12), and the outer wall of the sealing ring (4) is tightly attached to the inner wall of the annular groove (12) so that the first flange (11) and the second flange (21) are sealed.

6. The closed explosion-proof refrigeration compressor according to claim 5, characterized in that: The bottom inner wall of each annular groove (12) is provided with an annular protrusion (121), and opposite sides of the sealing ring (4) are respectively provided with annular recesses (41), and the annular protrusions (121) are correspondingly embedded in the annular recesses (41).

7. The closed explosion-proof refrigeration compressor according to any one of claims 1 to 6, characterized in that: The planes (13) of the first flange (11) are respectively arranged flush with the planes (13) of the second flange (21), and the inner wall of the transverse portion of the L-shaped plate (33) is in contact with the planes (13).

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