CN213899220U

CN213899220U - Crankcase for refrigerator compressor

Info

Publication number: CN213899220U
Application number: CN202022545700.2U
Authority: CN
Inventors: 关晓杰
Original assignee: Jiaxing Lifeng Machinery Manufacturing Co ltd
Current assignee: Jiaxing Lifeng Machinery Manufacturing Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-08-06
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a crankcase for refrigerator compressor relates to crankcase technical field, including the box, the both sides middle part of box is all inlayed and is had the bearing, has cup jointed the bent axle in the bearing, and the inside bottom of box is provided with lubricating oil, and the inside bottom of box is provided with the cooling tube, and the top middle part fixedly connected with piston cylinder of box is provided with the piston in the piston cylinder, and there is the connecting rod bottom of piston through round pin axle swing joint, and the bottom fixedly connected with connecting block of connecting rod, the scavenge hole has been seted up to the top both sides of box. The utility model discloses a movable rod pegs graft in the ventilation hole of seting up in the both sides bottom of box, the extrusion movable rod during bent axle rotation for the baffle and the box separation of movable rod one end setting, thereby get rid of the steam in the crankcase, bent axle and movable rod separation back, reset spring make the baffle reset, and the bottom of box sets up the cooling tube, and the cooling tube plays the cooling effect to lubricating oil, thereby has reduced the temperature of bent axle.

Description

Crankcase for refrigerator compressor

Technical Field

The utility model relates to a crankcase technical field, in particular to crankcase for refrigerator compressor.

Background

The compressor is the heart of the refrigerating system, it sucks the refrigerant gas of low-temperature low-pressure from the suction pipe, after driving the piston to compress it through the operation of the electrical machinery, discharge the refrigerant gas of high-temperature high-pressure to the exhaust pipe, provide the power for refrigerating cycle, thus realize the refrigeration cycle of compression → condensation → expansion → evaporation (absorb heat), the crank case is the heart of the compressor, the piston movement of the compressor needs to rely on the crank case to provide the power, the crankshaft will produce a large amount of heat in the course of working, if can't get rid of the heat in time, will cause the abrasion to the crankshaft, thus reduce the service life of the crankshaft. Therefore, it is necessary to provide a crankcase for a refrigerator compressor to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crankcase for refrigerator compressor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a crankcase for refrigerator compressor, includes the box, the both sides middle part of box is all inlayed and is had the bearing, the bent axle has been cup jointed in the bearing, the inside bottom of box is provided with lubricating oil, the inside bottom of box is provided with the cooling tube, the top middle part fixedly connected with piston cylinder of box, be provided with the piston in the piston cylinder, there is the connecting rod bottom of piston through round pin axle swing joint, the bottom fixedly connected with connecting block of connecting rod, the scavenge hole has been seted up to the top both sides of box, it has the movable rod to peg graft in the scavenge hole, the one end fixedly connected with baffle of movable rod, one side adhesive connection of baffle has sealed the pad, the other end fixedly connected with connecting plate of movable rod, reset spring and the inside wall swing joint of box are passed through to one side of connecting plate.

Preferably, the through-hole has all been seted up to the both sides bottom of box, the cooling tube runs through the through-hole and extends to the outside of box, the bottom middle part fixedly connected with water tank of box.

Preferably, one end of the cooling pipe is fixedly connected with a water return port of the water tank, a water outlet of the water tank is fixedly connected with a water pump, and the other end of the cooling pipe is fixedly connected with the water pump.

Preferably, the connecting block is movably connected with a connecting ring through a pin shaft, the connecting ring comprises an upper connecting ring and a lower connecting ring, and one end of the upper connecting ring is movably connected with one end of the lower connecting ring through a hinge.

Preferably, the inner sides of the upper connecting ring and the lower connecting ring are fixedly connected with arc-shaped plates, and a plurality of rollers which are distributed in an equally-spaced annular mode are arranged on the arc-shaped plates.

Preferably, one end of each of the upper connecting ring and the lower connecting ring is fixedly connected with a positioning block, the middle of each positioning block is provided with a positioning hole, and a locking screw is inserted into each positioning hole.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up the scavenge port in the both sides bottom of box, the movable rod of pegging graft in the scavenge port, the movable rod is extruded when the bent axle rotates for baffle that movable rod one end set up separates with the box, thereby makes the steam in the crankcase get rid of, and the bent axle separates with the movable rod after, reset spring acts on the connecting plate, makes the baffle reset, and the bottom of box sets up the cooling tube, and the cooling tube plays the cooling effect to lubricating oil, has reduced the temperature of lubricating oil, thereby has reduced the temperature of bent axle;

2. the utility model discloses a set up the go-between in the connecting rod bottom, the go-between inboard is provided with the arc, is provided with a plurality of cylinders on the arc, and during the bent axle rotated, the crank axle of bent axle passed through the cylinder and drives the go-between and rotate to drive the piston and be reciprocating motion in the piston cylinder.

Drawings

Fig. 1 is a schematic sectional view of the overall structure of the present invention.

Fig. 2 is a schematic side sectional view of the overall structure of the present invention.

Fig. 3 is a schematic cross-sectional view of the connection ring structure of the present invention.

In the figure: 1. a box body; 2. a bearing; 3. a crankshaft; 4. lubricating oil; 5. a cooling tube; 6. a piston cylinder; 7. a piston; 8. a connecting rod; 9. connecting blocks; 10. a ventilation hole; 11. a movable rod; 12. a baffle plate; 13. a gasket; 14. a connecting plate; 15. a through hole; 16. a water tank; 17. a water pump; 18. a connecting ring; 19. an upper connecting ring; 20. a lower connecting ring; 21. an arc-shaped plate; 22. a drum; 23. a hinge; 24. positioning blocks; 25. positioning holes; 26. and locking the screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a crankcase for refrigerator compressor as shown in figures 1-3, which comprises a case body 1, as shown in figure 1, bearings 2 are inlaid in the middle parts of both sides of the case body 1, a crankshaft 3 is sleeved in the bearings 2, lubricating oil 4 is arranged at the bottom end inside the case body 1, the lubricating oil 4 provides lubricating effect for the work of the crankshaft 3, abrasion caused by friction between the crankshaft 3 and a connecting ring 18 is avoided, a cooling pipe 5 is arranged at the bottom end inside the case body 1, the cooling pipe 5 is arranged in the lubricating oil 4, the temperature of the lubricating oil 4 is reduced, so that the temperature of the crankshaft 3 is reduced, a piston cylinder 6 is fixedly connected with the middle part of the top end of the case body 1, a piston 7 is arranged in the piston cylinder 6, the piston 7 does reciprocating motion in the piston cylinder 6, power is provided for the compressor, a connecting rod 8 is movably connected with the bottom end of the piston 7 through a pin shaft, a connecting block 9 is fixedly connected with the bottom end of the connecting rod 8, through-hole 15 has all been seted up to the both sides bottom of box 1, and cooling tube 5 runs through-hole 15 and extends to the outside of box 1, and box 1's bottom middle part fixedly connected with water tank 16, the one end of cooling tube 5 and the return water mouth fixed connection of water tank 16, the delivery port fixedly connected with water pump 17 of water tank 16, the other end and the water pump 17 fixed connection of cooling tube 5.

As shown in fig. 2, the ventilation holes 10 have been seted up to the top both sides of box 1, high-temperature gas in the box 1 can get rid of through ventilation holes 10, thereby the temperature in the box 1 has been reduced, it has movable rod 11 to peg graft in the ventilation holes 10, the one end fixedly connected with baffle 12 of movable rod 11, one side adhesive connection of baffle 12 has sealed the pad 13, sealed pad 13 fills the gap between baffle 12 and the ventilation holes 10, avoid lubricating oil 4 to leak, the other end fixedly connected with connecting plate 14 of movable rod 11, reset spring and the inside wall swing joint of box 1 are passed through to one side of connecting plate 14.

As shown in fig. 3, the connecting block 9 is movably connected with a connecting ring 18 through a pin shaft, the connecting ring 18 comprises an upper connecting ring 19 and a lower connecting ring 20, one end of the upper connecting ring 19 is movably connected with one end of the lower connecting ring 20 through a hinge 23, an arc plate 21 is fixedly connected to the inner sides of the upper connecting ring 19 and the lower connecting ring 20, a plurality of rollers 22 which are distributed in an equidistant annular shape are arranged on the arc plate 21, the crank handle drives the connecting ring 18 to move through the rollers 22, the friction between the crank handle and the connecting ring is reduced by the rotation of the rollers 22, so that the surface of the crank handle is protected, a positioning block 24 is fixedly connected to one end of the upper connecting ring 19 and one end of the lower connecting ring 20, a positioning hole 25 is formed in the middle of the positioning block 24, and a locking screw 26 is inserted in the positioning hole 25.

The utility model discloses the theory of operation:

when the device is installed, firstly, the crankshaft 3 penetrates through the bearing 2, the locking screw 26 is removed, the lower connecting ring 20 is pulled, the crankshaft handle of the crankshaft 3 is placed in the annular groove between the upper connecting ring 19 and the lower connecting ring 20, the locking screw 26 is screwed to fix the positions of the upper connecting ring 19 and the lower connecting ring 20, when the crankshaft 3 works, the crankshaft handle drives the connecting rod 8 to rotate through the roller 22, so as to drive the piston 7 to do reciprocating motion in the piston cylinder 6, the crankshaft 3 extrudes the connecting plate 14 when rotating, the connecting plate 14 drives the movable rod 11 to move outwards, the movable rod 11 drives the baffle plate 12 to move, the baffle plate 12 moves outwards so as to separate the sealing gasket 13 from the outer wall of the box body 1, so that gas in the box body 1 is discharged from the box body 1 through the ventilating hole 10, the water pump 17 is started, the water pump 17 inputs cooling liquid in the water tank 16 into the cooling pipe 5, and the cooling pipe 5 cools the lubricating oil 4, thereby cooling down bent axle 3, avoided bent axle 3 because of the wearing and tearing that high temperature caused, prolonged bent axle 3's life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a crankcase for refrigerator compressor, includes box (1), its characterized in that: the middle parts of two sides of the box body (1) are respectively inlaid with a bearing (2), a crankshaft (3) is sleeved in the bearing (2), lubricating oil (4) is arranged at the bottom end inside the box body (1), a cooling pipe (5) is arranged at the bottom end inside the box body (1), a piston cylinder (6) is fixedly connected to the middle part of the top end of the box body (1), a piston (7) is arranged in the piston cylinder (6), a connecting rod (8) is movably connected to the bottom end of the piston (7) through a pin shaft, a connecting block (9) is fixedly connected to the bottom end of the connecting rod (8), ventilating holes (10) are formed in two sides of the top end of the box body (1), a movable rod (11) is inserted in each ventilating hole (10), a baffle plate (12) is fixedly connected to one end of each movable rod (11), and a sealing gasket (13) is bonded to one side of each baffle plate (12), the other end fixedly connected with connecting plate (14) of movable rod (11), one side of connecting plate (14) is through reset spring and the inside wall swing joint of box (1).

2. The crankcase for a compressor of a refrigerator according to claim 1, wherein: through-hole (15) have all been seted up to the both sides bottom of box (1), cooling tube (5) run through-hole (15) and extend to the outside of box (1), the bottom middle part fixedly connected with water tank (16) of box (1).

3. The crankcase for a compressor of a refrigerator according to claim 2, wherein: one end of the cooling pipe (5) is fixedly connected with a water return port of the water tank (16), a water outlet of the water tank (16) is fixedly connected with a water pump (17), and the other end of the cooling pipe (5) is fixedly connected with the water pump (17).

4. A crankcase for a compressor of a refrigerator according to claim 3, wherein: the connecting block (9) is movably connected with a connecting ring (18) through a pin shaft, the connecting ring (18) comprises an upper connecting ring (19) and a lower connecting ring (20), and one end of the upper connecting ring (19) and one end of the lower connecting ring (20) are movably connected through a hinge (23).

5. The crankcase for a compressor of a refrigerator according to claim 4, wherein: the inner sides of the upper connecting ring (19) and the lower connecting ring (20) are fixedly connected with arc-shaped plates (21), and a plurality of rollers (22) which are distributed in an annular mode at equal intervals are arranged on the arc-shaped plates (21).

6. The crankcase for a compressor of a refrigerator according to claim 5, wherein: one end of each of the upper connecting ring (19) and the lower connecting ring (20) is fixedly connected with a positioning block (24), the middle of each positioning block (24) is provided with a positioning hole (25), and a locking screw (26) is inserted into each positioning hole (25).