Split crankcase for refrigerator compressor

Abstract

The utility model provides a split type crankcase for a refrigerator compressor, and relates to the technical field of compressor crankcases, when the temperature of lubricating oil is too high, a cooling box absorbs heat and cools the lubricating oil, meanwhile, cooling liquid enters a liquid collecting box and heat dissipation fins through a connecting pipe for cooling, and meanwhile, a fan is used for auxiliary operation. When the temperature is too low, the heating rod is used for heating the lubricating oil, the temperature difference controller is used for controlling and adjusting, the situation that the lubricating effect is influenced by too high or too low oil temperature is avoided, mechanical abrasion is reduced, and the lubricating effect is improved, machine abrasion is reduced, working performance is enhanced and the service life is prolonged by keeping the temperature of the lubricating oil within a certain range.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor crankcases, in particular to a split crankcase for a refrigerator compressor. Background Art

[0002] The crankcase of a refrigerator compressor refers to a component inside the compressor, which is used to support and drive the crankshaft, convert the rotary motion of the motor into a reciprocating motion, so as to drive the operation of the compressor. When designing, it is necessary to ensure that the crankcase has the characteristics of high strength, low friction and wear resistance, so as to improve the efficiency and stability of the compressor.

[0003] After retrieval, the patent number "CN220622113U" provides that "the utility model discloses a compressor crankcase, which includes a crankcase body, a sealing plate, a communication hole and a shaft hole. The top of the crankcase body is installed with a sealing plate by screws, and a guide sleeve is penetrated through the center of the sealing plate. A bearing A is sleeved inside the guide sleeve, and a cap is sleeved on the top of the bearing A. A bearing B is embedded on the top of the cap. A gantry is welded on the top of the sealing plate, and an adjusting bolt is installed through a screw hole on the top of the gantry. This new type of compressor crankcase can meet the connection use of crankshafts with different lengths and is suitable for wide promotion and use". When in use, through the gantry and the adjusting bolt, the device can be connected to crankshafts with different lengths. However, when in use, the device cannot adjust the temperature of the lubricating oil in the box in time, so that the lubricating oil cannot be at the most suitable viscosity, and the viscosity of the lubricating oil will be too high or too low due to too high or too low temperature, reducing the lubrication effect, increasing the wear of the machine, and reducing the working performance and service life of the machine.

[0004] Therefore, we provide a split crankcase for a refrigerator compressor to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a split crankcase for a refrigerator compressor to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a split crankcase for a refrigerator compressor, which includes a mounting frame and a temperature control mechanism. Mounting holes are opened at both the top end and the bottom end of the mounting frame. A box body is welded inside the mounting frame. A rotating shaft hole is opened at one end of the box body, and an input end connection hole is opened at the other end of the box body. Fixed holes are welded on the outer sides of the rotating shaft hole and the input end connection hole. A temperature control mechanism is arranged on the outer side of the box body;

[0007] The temperature control mechanism includes a hole component, a cooling component, a heating component and an auxiliary component. The hole component is arranged at the top end of the box body. The cooling component is connected to the front end of the box body by screws. The heating component is arranged at the rear end of the box body. The auxiliary component is arranged at the bottom end of the box body.

[0008] Preferably, the hole assembly includes an oil filling hole, an auxiliary hole, a piston hole, an air inlet, and an air outlet. The oil filling hole is threadedly connected to the top end of the box body, and an auxiliary hole is provided on one side of the oil filling hole.

[0009] Preferably, a piston hole is provided on one side of the auxiliary hole, an air inlet is provided on one side of the piston hole, and an air outlet is provided on the other side of the piston hole.

[0010] Preferably, the temperature reduction assembly includes a liquid collection box, heat dissipation fins, a fan, a connecting pipe, and a cooling box. The liquid collection box is screw-connected to the front end of the box body, and heat dissipation fins are provided on the top end of the liquid collection box.

[0011] Preferably, a fan is screw-connected to the front end of the heat dissipation fins. One side of the inner wall of the box body is penetrated by a connecting pipe, and the other end of the connecting pipe is welded to a cooling box.

[0012] Preferably, the temperature increase assembly includes a temperature sensor, a heating rod, and a temperature difference controller. The temperature sensor is provided on the top end of the cooling box. The heating rod is threadedly connected to the other side of the inner wall of the box body, and the temperature difference controller is screw-connected to the other side of the box body.

[0013] Preferably, the auxiliary assembly includes an oil outlet, bottom reinforcing ribs, and side reinforcing ribs. The oil outlet is threadedly connected to the bottom end of the box body. The bottom reinforcing ribs are provided on both sides of the oil outlet. The side reinforcing ribs are provided on the top ends of both the heat dissipation fins and the temperature difference controller.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the split crankcase for a refrigerator compressor, through the setting of the temperature control mechanism, the connection between the crankcase and various components is completed by the hole assembly. The lubricating oil is cooled by the temperature reduction assembly and heated by the temperature increase assembly, avoiding the influence of too high or too low oil temperature on the working performance. The mechanical strength of the device is increased by the auxiliary assembly, avoiding the fracture of the box body caused by vibration.

[0016] 2. The temperature of the lubricating oil is monitored by the temperature sensor. When the temperature of the lubricating oil is too high, the cooling box absorbs heat from the lubricating oil for temperature reduction treatment. At the same time, the coolant enters the liquid collection box and the heat dissipation fins through the connecting pipe for temperature reduction, and the fan is used for auxiliary operation. When the temperature is too low, the heating rod heats the lubricating oil, and the temperature difference controller is used for control and adjustment, avoiding the influence of too high or too low oil temperature on the lubrication effect, reducing the wear of the machine, keeping the lubricating oil temperature within a certain range, thereby increasing the lubrication effect, reducing the wear of the machine, and enhancing the working performance and service life. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the external structure from the front view of the present utility model;

[0018] Figure 2 It is a schematic diagram of the external structure from the rear upward view of the present utility model;

[0019] Figure 3 It is a schematic diagram of the structure where the temperature-raising component of the present utility model is matched with the cooling box;

[0020] Figure 4 It is a schematic diagram of the structure where the temperature difference controller and the side reinforcing rib of the present utility model are matched;

[0021] Figure 5 It is an enlarged schematic diagram of part A of the present utility model.

[0022] Reference numerals in the figure: 1, mounting rack; 2, mounting hole; 3, box body; 4, rotating shaft hole; 5, input end connection hole; 6, fixing hole; 7, temperature control mechanism; 71, hole assembly; 711, oil filling hole; 712, auxiliary hole; 713, piston hole; 714, air inlet; 715, air outlet; 72, temperature-lowering component; 721, liquid collection tank; 722, heat dissipation fins; 723, fan; 724, connecting pipe; 725, cooling box; 73, temperature-raising component; 731, temperature sensor; 732, heating rod; 733, temperature difference controller; 74, auxiliary component; 741, oil outlet; 742, bottom reinforcing rib; 743, side reinforcing rib. Detailed implementation manners

[0023] Please refer to Figures 1-5 , the present utility model provides a technical solution: a split crankcase for a refrigerator compressor, including a mounting rack 1 and a temperature control mechanism 7. Mounting holes 2 are provided at both the top end and the bottom end of the mounting rack 1. A box body 3 is welded inside the mounting rack 1. A rotating shaft hole 4 is provided at one end of the box body 3, and an input end connection hole 5 is provided at the other end of the box body 3. Fixing holes 6 are welded on the outer sides of the rotating shaft hole 4 and the input end connection hole 5. A temperature control mechanism 7 is arranged on the outer side of the box body 3;

[0024] The temperature control mechanism 7 includes a hole assembly 71, a temperature-lowering component 72, a temperature-raising component 73, and an auxiliary component 74. The hole assembly 71 is arranged at the top end of the box body 3. The temperature-lowering component 72 is screwed to the front end of the box body 3. The temperature-raising component 73 is arranged at the rear end of the box body 3. The auxiliary component 74 is arranged at the bottom end of the box body 3.

[0025] Further, the hole assembly 71 includes a fuel filling hole 711, an auxiliary hole 712, a piston hole 713, an air inlet 714, and an air outlet 715. The top end of the box body 3 is threadedly connected with the fuel filling hole 711. An auxiliary hole 712 is arranged on one side of the fuel filling hole 711. A piston hole 713 is arranged on one side of the auxiliary hole 712. An air inlet 714 is arranged on one side of the piston hole 713. An air outlet 715 is arranged on the other side of the piston hole 713. By installing a piston in the piston hole 713, the gas is compressed inside the piston hole 713. Additionally, an additional piston assembly can be connected through the auxiliary hole 712 to enhance the compression effect of the compressor. The gas is inhaled from the air inlet 714, compressed in the piston hole 713, and discharged from the air outlet 715.

[0026] Further, the temperature reduction assembly 72 includes a liquid collection tank 721, heat dissipation fins 722, a fan 723, a connecting pipe 724, and a cooling box 725. The liquid collection tank 721 is screw - connected to the front end of the box body 3. Heat dissipation fins 722 are arranged at the top end of the liquid collection tank 721. The fan 723 is screw - connected to the front end of the heat dissipation fins 722. One side of the inner wall of the box body 3 is penetrated by the connecting pipe 724, and the other end of the connecting pipe 724 is welded with the cooling box 725. The liquid collection tank 721 is filled with a coolant. The coolant exchange between the liquid collection tank 721 and the cooling box 725 is completed through the connecting pipe 724, thereby realizing the temperature reduction treatment of the lubricating oil in the device. The coolant dissipates heat at the heat dissipation fins 722, and the fan 723 assists in heat dissipation to enhance the heat dissipation effect.

[0027] Further, the temperature increase assembly 73 includes a temperature sensor 731, a heating rod 732, and a temperature difference controller 733. The temperature sensor 731 is arranged at the top end of the cooling box 725. The heating rod 732 is threadedly connected to the other side of the inner wall of the box body 3. The temperature difference controller 733 is screw - connected to the other side of the box body 3. The temperature of the lubricating oil inside the crankcase is monitored by the temperature sensor 731. When the temperature is too low, the temperature difference controller 733 adjusts the heating rod 732 to complete the heating operation of the lubricating oil, reduce the viscosity of the lubricating oil, and improve the lubrication effect.

[0028] Further, the auxiliary assembly 74 includes an oil outlet 741, bottom reinforcing ribs 742, and side reinforcing ribs 743. The oil outlet 741 is threadedly connected to the bottom end of the box body 3. The bottom reinforcing ribs 742 are arranged on both sides of the oil outlet 741. The side reinforcing ribs 743 are arranged at the top ends of both the heat dissipation fins 722 and the temperature difference controller 733. The bottom reinforcing ribs 742 and the side reinforcing ribs 743 cooperate with each other to increase the mechanical strength of the box body 3 and prevent it from breaking during operation.

[0029] Working principle: First, move a split crankcase for a refrigerator compressor to the working position. In the first step, connect the crankshaft to the device through the rotating shaft hole 4 and the input end connection hole 5, insert a piston into the piston hole 713, and complete the installation and connection of the device through the fixing hole 6 and the mounting hole 2. In the second step, complete the connection between the motor and the crankshaft through the input end connection hole 5. In the third step, add lubricating oil through the oil filling hole 711 so that half of the crankshaft is immersed in the lubricating oil. When the compressor works, it inhales from the air inlet 714, and the motor drives the piston to compress the gas at the piston hole 713, and the compression is completed within the piston hole 713 and discharged from the air outlet 715. In the fourth step, heat is generated during the air compression process, causing the temperature of the piston, crankshaft, and the internal lubricating oil to rise. At this time, the temperature sensor 731 monitors the temperature of the lubricating oil. In the fifth step, when the temperature of the lubricating oil is too low, the temperature difference controller 733 adjusts the heating rod 732 to complete the heating operation of the lubricating oil, reduce the viscosity of the lubricating oil, improve the fluidity of the lubricating oil, and avoid wear of the components. In the sixth step, when the temperature of the lubricating oil is too high, the fan 723 starts to work to cool the coolant in the heat dissipation fins 722, and complete the temperature exchange between the liquid collection tank 721 and the cooling box 725 through the connecting pipe 724, and send the cooled coolant into the cooling box 725 to complete the heat absorption and cooling operation of the lubricating oil. In the seventh step, the temperature difference controller 733 timely controls and completes the adjustment of the temperature of the lubricating oil to keep it within a certain range, thus completing the use process of a split crankcase for a refrigerator compressor.

Claims

1. A split crankcase for a refrigerator compressor, comprising a mounting frame (1) and a temperature control mechanism (7), characterized in that: The top and bottom ends of the mounting frame (1) are both provided with mounting holes (2); a box body (3) is welded to the inner side of the mounting frame (1); a rotating shaft hole (4) is provided at one end of the box body (3); an input end connection hole (5) is provided at the other end of the box body (3); fixing holes (6) are welded to the outer sides of the rotating shaft hole (4) and the input end connection hole (5); and a temperature control mechanism (7) is provided on the outer side of the box body (3); The temperature control mechanism (7) comprises a hole assembly (71), a cooling assembly (72), a heating assembly (73) and an auxiliary assembly (74); the top end of the box body (3) is provided with the hole assembly (71); the front end of the box body (3) is screw-connected with the cooling assembly (72); the rear end of the box body (3) is provided with the heating assembly (73); and the bottom end of the box body (3) is provided with the auxiliary assembly (74).

2. A split crankcase for a refrigerator compressor according to claim 1, characterized in that: The hole assembly (71) comprises a refueling hole (711), an auxiliary hole (712), a piston hole (713), an air inlet (714) and an air outlet (715); the top end of the box body (3) is threadedly connected with the refueling hole (711); and one side of the refueling hole (711) is provided with an auxiliary hole (712).

3. A split crankcase for a refrigerator compressor according to claim 2, characterized in that: A piston hole (713) is provided on one side of the auxiliary hole (712), an air inlet (714) is provided on one side of the piston hole (713), and an air outlet (715) is provided on the other side of the piston hole (713).

4. A split crankcase for a refrigerator compressor according to claim 1, characterized in that: The cooling component (72) comprises a liquid collecting box (721), heat dissipation fins (722), a fan (723), a connecting pipe (724) and a cooling box (725); the front end of the box body (3) is screw-connected to the liquid collecting box (721); and the top end of the liquid collecting box (721) is provided with heat dissipation fins (722).

5. A split crankcase for a refrigerator compressor according to claim 4, characterized in that: The front end of the heat dissipation fin (722) is screwed to a fan (723), a connecting pipe (724) penetrates one side of the inner wall of the box body (3), and a cooling box (725) is welded to the other end of the connecting pipe (724).

6. A split crankcase for a refrigerator compressor according to claim 5, characterized in that: The temperature raising component (73) comprises a temperature sensor (731), a heating rod (732) and a temperature difference controller (733); the temperature sensor (731) is arranged at the top end of the cooling box (725); the heating rod (732) is threadedly connected to the other side of the inner wall of the box body (3); and the temperature difference controller (733) is screwedly connected to the other side of the box body (3).

7. A split crankcase for a refrigerator compressor according to claim 4, characterized in that: The auxiliary component (74) comprises an oil outlet (741), a bottom reinforcement rib (742) and a side reinforcement rib (743); the bottom end of the box body (3) is threadedly connected to the oil outlet (741); bottom reinforcement ribs (742) are provided on both sides of the oil outlet (741); and the top ends of the heat dissipation fins (722) and the temperature difference controller (733) are both provided with side reinforcement ribs (743).

Images