Refrigeration oil circulation structure and system based on worm wheel compressor

Abstract

The utility model provides a refrigeration oil circulation structure and system based on a worm wheel compressor, and the refrigeration oil circulation structure based on the worm wheel compressor comprises an oil supply pool, an oil inlet channel, an oil pumping mechanism, an oil storage pool, an oil storage cup and an oil guide pipe, the utility model further discloses a refrigerant oil circulation system based on the worm wheel compressor. The refrigerant oil circulation system comprises the worm wheel compressor and the refrigerant oil circulation structure based on the worm wheel compressor. According to the utility model, the problems of oil shortage, poor lubrication, abnormal wear and the like of the worm gear compressor caused by the fact that excessive refrigerant oil is discharged from the exhaust pipe of the worm gear compressor and enters the cooling and heating system can be avoided, and the reliability of the worm gear compressor and the heat exchange efficiency of the cooling and heating system are improved.

Description

Technical Field

[0001] This utility model relates to the field of worm gear compressor technology, and in particular to a refrigeration oil circulation structure and system based on a worm gear compressor. Background Technology

[0002] In the existing technology, when the worm gear compressor is running, the refrigeration oil will be discharged from the discharge pipe of the worm gear compressor along with the refrigerant. When excessive refrigeration oil is discharged from the discharge pipe of the worm gear compressor and enters the heating and cooling system, it will cause problems such as oil shortage, poor lubrication and abnormal wear of the worm gear compressor, reduce the reliability of the worm gear compressor and affect the heat exchange efficiency of the heating and cooling system.

[0003] Therefore, it is essential to study and design an oil circuit structure to reduce the oil discharge of scroll compressors. Utility Model Content

[0004] To address the aforementioned technical problems, a refrigerant oil circulation structure and system based on a worm gear compressor is provided. This invention avoids problems such as oil shortage, poor lubrication, and abnormal wear in the worm gear compressor caused by excessive refrigerant oil being discharged from the compressor's exhaust pipe and entering the heating / cooling system, thereby improving the reliability of the worm gear compressor and the heat exchange efficiency of the heating / cooling system. The technical means employed in this invention are as follows:

[0005] In a first aspect, a refrigerant oil circulation structure based on a worm gear compressor includes an oil supply tank, an oil inlet channel, an oil pumping mechanism, an oil storage tank, an oil storage cup, and an oil guide pipe. The opening of the oil supply tank faces upwards. A first clearance is defined as the gap between the crankshaft of the worm gear compressor and its auxiliary support. The opening of the oil supply tank is located directly below the first clearance and communicates with its lower end. The oil inlet channel is coaxially formed within the crankshaft of the worm gear compressor. The lower end of the oil inlet channel communicates with the opening of the oil supply tank. A second clearance is defined as the gap between the crankshaft of the worm gear compressor and the moving worm gear. The upper end of the oil inlet channel communicates with the upper end of the second clearance. The oil pumping mechanism is installed at the lower end of the oil inlet channel and can pump the oil inlet... The refrigerant oil at the lower end of the channel is transported to the upper end of the oil inlet channel; the oil reservoir is located between the main support and the moving worm gear of the worm compressor, and the oil reservoir is connected to the lower end of the second gap. The gap between the crankshaft and the main support of the worm compressor is set as the third gap, and the oil reservoir is connected to the upper end of the third gap; the oil cup is coaxially mounted on the crankshaft of the worm compressor and located between the main support and the motor of the worm compressor. The opening of the oil cup faces upward, and the opening of the oil cup is located directly below the third gap and connected to the lower end of the third gap; the upper end of the oil guide pipe is connected to the inside of the oil cup, and the lower end of the oil guide pipe is connected to the upper end of the oil guide hole of the rotor core of the worm compressor.

[0006] Furthermore, the oil pumping mechanism is a gear pump, an eccentric pump, or an oil stirring vane.

[0007] Furthermore, an oil cup cover is installed on the opening of the oil cup; a through hole is provided on the oil cup cover; the third gap is located inside the through hole, and the through hole is located between the upper and lower ends of the third gap.

[0008] Furthermore, it also includes a first transverse hole, a second transverse hole, and a third transverse hole, all of which are formed inside the crankshaft of the worm gear compressor; the two ends of the first transverse hole are respectively connected to the oil inlet channel and the first gap; the two ends of the second transverse hole are respectively connected to the oil inlet channel and the second gap; and the two ends of the third transverse hole are respectively connected to the oil inlet channel and the third gap.

[0009] Secondly, a refrigeration oil circulation system based on a worm gear compressor includes a worm gear compressor, which comprises a housing, a main support, a secondary support, a crankshaft, a moving worm gear, a fixed worm gear, an intake pipe, a motor, and an exhaust pipe; the housing is a cylindrical structure with its axis perpendicular to the horizontal plane and open at both ends; the main support and the secondary support are coaxially installed in the openings at the upper and lower ends of the housing, respectively; the crankshaft is coaxially installed inside the housing, with its upper end coaxially installed in a mounting hole of the main support, forming a third gap between the crankshaft and the main support, and its lower end coaxially installed in a mounting hole of the secondary support, forming a first gap between the crankshaft and the secondary support; the... The moving worm gear is coaxially mounted on the crank at the upper end of the crankshaft and located between the crankshaft and the main support. A second clearance is formed between the crankshaft and the moving worm gear. The fixed worm gear is located directly above the moving worm gear and is assembled with it. A compression chamber is formed between the fixed worm gear and the moving worm gear. The intake pipe is mounted on the fixed worm gear and communicates with the compression chamber. The motor is mounted inside the housing and located between the main support and the auxiliary support. The rotor of the motor is coaxially mounted on the crankshaft, and the stator of the motor is coaxially mounted on the inner wall of the housing. An oil guide hole for the rotor core is provided inside the rotor of the motor. An oil storage chamber is formed between the rotor of the motor and the auxiliary support. The lower end of the first gap and the upper end of the first gap are both connected to the oil storage chamber; an exhaust chamber is formed between the motor and the main support, and the exhaust pipe is installed on the housing and connected to the exhaust chamber; it also includes the refrigeration oil circulation structure based on the worm gear compressor as described in any one of the first aspects; the opening of the oil supply tank in the refrigeration oil circulation structure based on the worm gear compressor is located directly below the first gap and connected to the lower end of the first gap; the oil inlet channel in the refrigeration oil circulation structure based on the worm gear compressor is coaxially opened in the crankshaft, and the upper end and lower end of the oil inlet channel are respectively connected to the upper end of the second gap and the opening of the oil supply tank; the pump in the refrigeration oil circulation structure based on the worm gear compressor The oil mechanism is installed at the lower end of the oil inlet channel and can transport the refrigeration oil at the lower end of the oil inlet channel to the upper end of the oil inlet channel; the oil storage tank in the refrigeration oil circulation structure based on the worm gear compressor is opened between the main support and the moving worm gear, and the lower end of the second gap and the upper end of the third gap are both connected to the inside of the oil storage tank; the oil cup in the refrigeration oil circulation structure based on the worm gear compressor is coaxially installed on the crankshaft and located between the main support and the motor, and the opening of the oil cup is located directly below the third gap and connected to the lower end of the third gap; the upper end and lower end of the oil guide pipe in the refrigeration oil circulation structure based on the worm gear compressor are respectively connected to the inside of the oil cup and the upper end of the rotor core oil guide hole.

[0010] This utility model has the following advantages:

[0011] 1. In this utility model, the refrigerant oil in the oil supply tank enters the oil inlet channel through the lower end of the oil inlet channel. The refrigerant oil at the lower end of the oil inlet channel is transported to the upper end of the oil inlet channel by the action of the oil pump mechanism. The refrigerant oil at the upper end of the oil inlet channel enters the oil storage tank through the second gap. The refrigerant oil in the oil storage tank enters the oil storage cup through the third gap. The refrigerant oil in the oil storage cup enters the oil storage chamber through the oil guide pipe and the rotor core oil guide hole in sequence. The refrigerant oil in the oil storage chamber flows back to the oil supply tank through the first gap, thus forming a circulation. This utility model can avoid the problems of oil shortage, poor lubrication and abnormal wear of the worm gear compressor caused by excessive refrigerant oil being discharged from the exhaust pipe of the worm gear compressor and entering the refrigeration system. This improves the reliability of the worm gear compressor and the heat exchange efficiency of the refrigeration system.

[0012] 2. In this utility model, the oil pumping mechanism can be any one of a gear pump, an eccentric pump, and an oil stirring plate, which can transport the refrigeration oil at the lower end of the oil inlet channel to the upper end of the oil inlet channel.

[0013] 3. In this utility model, the oil cup cover can prevent the refrigeration oil in the oil cup from being thrown out of the oil cup through the opening of the oil cup, thus ensuring the stability of the refrigeration oil circulation structure based on the worm gear compressor provided by this utility model.

[0014] 4. In this utility model, the refrigeration oil in the oil inlet channel can be input into the first gap, the second gap and the third gap respectively through the first horizontal hole, the second horizontal hole and the third horizontal hole, which can both lubricate the inside of the worm gear compressor and ensure the circulation of refrigeration oil. Attached Figure Description

[0015] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of a refrigeration oil circulation structure and system based on a worm gear compressor in an embodiment of this utility model, with the oil cup cover installed on the balance block by bolts;

[0017] Figure 2 This is an overall structural diagram of a refrigeration oil circulation structure and system based on a worm gear compressor in an embodiment of this utility model, with the oil cup cover bolted to the bottom surface of the main support;

[0018] Figure 3 for Figure 1 A schematic diagram showing the positions of the first, second, and third gaps in the middle section;

[0019] Figure 4 for Figure 2 A schematic diagram showing the positions of the first, second, and third gaps in the middle section;

[0020] Figure 5 This is an overall structural diagram of the rotor in an embodiment of this utility model;

[0021] Reference numerals in the attached drawings: 1-House; 2-Main support; 3-Crankshaft; 4-Motor; 5-Secondary support; 6-Rotor core oil guide hole; 7-Moving worm gear; 8-Stabilized worm gear; 9-Intake pipe; 10-Oil supply tank; 11-First transverse hole; 12-Oil inlet channel; 13-Oil guide pipe; 14-Oil reservoir; 15-Oil reservoir cover; 16-Bolt; 17-Second transverse hole; 18-Oil reservoir; 19-Third transverse hole; 20-Balance block; 21-Oil storage chamber; 22-Rivet; 23-Lower rotor oil cup; 24-Lower rotor balance block; 25-Exhaust pipe; 26-Pumping mechanism; 27-Upper oil cup of secondary support; 28-Oil guide hole of secondary support; 401-Rotor; 402-Stator. Detailed Implementation

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

[0023] Example 1:

[0024] like Figures 1 to 5As shown, a refrigeration oil circulation structure based on a worm gear compressor includes an oil supply tank 10, an oil inlet channel 12, an oil pumping mechanism 26, an oil storage tank 18, an oil storage cup 14, and an oil guide pipe 13. The opening of the oil supply tank 10 faces upward. The gap between the crankshaft 3 of the worm gear compressor and the auxiliary support 5 is defined as the first gap. The opening of the oil supply tank 10 is located directly below the first gap and communicates with the lower end of the first gap. The oil inlet channel 12 is coaxially opened inside the crankshaft 3 of the worm gear compressor. The lower end of the oil inlet channel 12 communicates with the opening of the oil supply tank 10. The gap between the crankshaft 3 of the worm gear compressor and the moving worm gear 7 is defined as the second gap. The upper end of the oil inlet channel 12 communicates with the upper end of the second gap. The oil pumping mechanism 26 is installed at the lower end of the oil inlet channel 12 and can pump oil inlet... The refrigerant oil at the lower end of channel 12 is transported to the upper end of oil inlet channel 12; the oil storage tank 18 is opened between the main support 2 and the moving worm gear 7 of the worm compressor, and the oil storage tank 18 is connected to the lower end of the second gap. The gap between the crankshaft 3 and the main support 2 of the worm compressor is set as the third gap, and the oil storage tank 18 is connected to the upper end of the third gap; the oil cup 14 is coaxially mounted on the crankshaft 3 of the worm compressor and is located between the main support 2 and the motor 4 of the worm compressor. The opening of the oil cup 14 faces upward, and the opening of the oil cup 14 is located directly below the third gap and is connected to the lower end of the third gap; the upper end of the oil guide pipe 13 is connected to the oil cup 14, and the lower end of the oil guide pipe 13 is connected to the upper end of the oil guide hole 6 of the rotor core of the worm compressor.

[0025] In this embodiment, the oil pumping mechanism 26 is a gear pump, an eccentric pump, or an oil stirring plate.

[0026] In this embodiment, an oil cup cover 15 is installed on the opening of the oil cup 14; a through hole is provided on the oil cup cover 15; the third gap is located inside the through hole, and the through hole is located between the upper and lower ends of the third gap.

[0027] In this embodiment, a first transverse hole 11, a second transverse hole 17, and a third transverse hole 19 are also included. The first transverse hole 11, the second transverse hole 17, and the third transverse hole 19 are all formed inside the crankshaft 3 of the worm gear compressor. The two ends of the first transverse hole 11 are respectively connected to the oil inlet channel 12 and the first gap. The two ends of the second transverse hole 17 are respectively connected to the oil inlet channel 12 and the second gap. The two ends of the third transverse hole 19 are respectively connected to the oil inlet channel 12 and the third gap.

[0028] Example 2:

[0029] like Figures 1 to 5As shown, a refrigeration oil circulation system based on a worm gear compressor includes a worm gear compressor. The worm gear compressor includes a housing 1, a main support 2, a secondary support 5, a crankshaft 3, a moving worm gear 7, a fixed worm gear 8, an intake pipe 9, a motor 4, and an exhaust pipe 25. The housing 1 is a cylindrical structure with its axis perpendicular to the horizontal plane and open at both ends. The main support 2 and the secondary support 5 are coaxially installed in the openings at the upper and lower ends of the housing 1, respectively. The crankshaft 3 is coaxially installed inside the housing 1. The upper end of the crankshaft 3 is coaxially installed in the mounting hole of the main support 2, forming a third gap between the crankshaft 3 and the main support 2. The lower end of the crankshaft 3 is coaxially installed in the mounting hole of the secondary support 5, forming a first gap between the crankshaft 3 and the secondary support 5. The moving worm gear 7... A crankshaft 3 is coaxially mounted on the upper end of the crankshaft 3 and located between the crankshaft 3 and the main support 2. A second clearance is formed between the crankshaft 3 and the moving worm gear 7. The fixed worm gear 8 is located directly above the moving worm gear 7 and is assembled together with it. A compression chamber is formed between the fixed worm gear 8 and the moving worm gear 7. The intake pipe 9 is mounted on the fixed worm gear 8 and communicates with the compression chamber. The motor 4 is mounted inside the housing 1 and located between the main support 2 and the auxiliary support 5. The rotor 401 of the motor 4 is coaxially mounted on the crankshaft 3, and the stator 402 of the motor 4 is coaxially mounted on the inner wall of the housing 1. The rotor 401 of the motor 4 has a rotor core oil guide hole 6. An oil storage chamber 21 is formed between the rotor 401 of the motor 4 and the auxiliary support 5. The lower end of the rotor core oil guide hole 6 and the upper end of the first gap are both connected to the oil storage chamber 21; an exhaust chamber is formed between the motor 4 and the main support 2, and the exhaust pipe 25 is installed on the housing 1 and connected to the exhaust chamber; it also includes the refrigeration oil circulation structure based on the worm gear compressor as described in any one of Embodiment 1; the opening of the oil supply tank 10 in the refrigeration oil circulation structure based on the worm gear compressor is located directly below the first gap and connected to the lower end of the first gap; the oil inlet channel 12 in the refrigeration oil circulation structure based on the worm gear compressor is coaxially opened in the crankshaft 3, and the upper and lower ends of the oil inlet channel 12 are respectively connected to the upper end of the second gap and the opening of the oil supply tank 10; the pump in the refrigeration oil circulation structure based on the worm gear compressor The oil mechanism 26 is installed at the lower end of the oil inlet channel 12 and can transport the refrigeration oil at the lower end of the oil inlet channel 12 to the upper end of the oil inlet channel 12; the oil storage tank 18 in the refrigeration oil circulation structure based on the worm gear compressor is opened between the main support 2 and the moving worm gear 7, and the lower end of the second gap and the upper end of the third gap are both connected to the inside of the oil storage tank 18; the oil cup 14 in the refrigeration oil circulation structure based on the worm gear compressor is coaxially installed on the crankshaft 3 and located between the main support 2 and the motor 4, and the opening of the oil cup 14 is located directly below the third gap and is connected to the lower end of the third gap; the upper end and lower end of the oil guide pipe 13 in the refrigeration oil circulation structure based on the worm gear compressor are respectively connected to the inside of the oil cup 14 and the upper end of the rotor core oil guide hole 6.

[0030] Specifically, a balance block 20 is coaxially mounted on the crankshaft 3. The balance block 20 is located inside the oil reservoir 14 and is mounted to the bottom surface of the oil reservoir 14 by bolts 16.

[0031] In addition, the oil cup cover 15 can be installed on the balance block 20 or on the bottom surface of the main support 2 by bolts 16.

[0032] In this embodiment, it also includes a rotor lower oil cup 23, a rotor lower balance block 24, and an auxiliary support upper oil cup 27; the opening of the rotor lower oil cup 23 faces downward, and the top surface of the rotor lower oil cup 23 is mounted on the bottom surface of the rotor 401 by rivets 22. The rotor lower balance block 24 is mounted inside the rotor lower oil cup 23 by rivets 22. The bottom surface of the rotor 401 and the top surface of the rotor lower balance block 24 clamp the top surface of the rotor lower oil cup 23. The top surface of the rotor lower oil cup 23 is provided with a rotor lower oil cup guide hole communicating with the rotor core oil guide hole 6; the auxiliary support upper oil cup 27... The opening of 7 faces upward. The bottom surface of the upper oil cup 27 of the auxiliary support is installed on the top surface of the auxiliary support 5 by rivets 22. The opening of the lower oil cup 23 of the rotor is located inside the opening of the upper oil cup 27 of the auxiliary support. The oil storage cavity 21 is formed between the lower oil cup 23 of the rotor and the upper oil cup 27 of the auxiliary support. The auxiliary support 5 is provided with an oil guide hole 28. The bottom surface of the upper oil cup 27 of the auxiliary support is provided with an oil guide hole for the upper oil cup of the auxiliary support. The upper end of the oil guide hole 28 of the auxiliary support is connected to the oil guide hole for the upper oil cup of the auxiliary support. The lower end of the oil guide hole 28 of the auxiliary support is connected to the opening of the oil supply tank 10.

[0033] The working principle of this embodiment:

[0034] First, sufficient refrigerant oil is stored in the oil supply tank 10. The refrigerant oil in the oil supply tank 10 enters the oil inlet channel 12 through the lower end of the oil inlet channel 12. The refrigerant oil at the lower end of the oil inlet channel 12 is transported to the upper end of the oil inlet channel 12 by the oil pumping mechanism 26. The refrigerant oil at the upper end of the oil inlet channel 12 enters the oil storage tank 18 through the second gap. The refrigerant oil in the oil storage tank 18 enters the oil storage cup 14 through the third gap. Since the oil storage cup 14 rotates synchronously with the rotor 401 of the motor 4, the oil guide pipe 13 and the rotor core oil guide hole 6 remain relatively stationary. The refrigerant oil in the oil storage cup 14 passes through the oil guide pipe 13 and the rotor core oil guide hole in sequence. 6. The oil cup cover 15 installed on the opening of the oil cup 14 prevents the refrigerant oil in the oil cup 14 from being thrown out of the oil cup 14. The refrigerant oil in the oil cup 21 flows back to the oil supply pool 10 through the first gap, thus forming a circulation. It can also flow back to the oil supply pool 10 through the auxiliary support oil guide hole 28, forming a circulation. This embodiment can avoid problems such as oil shortage, poor lubrication and abnormal wear of the worm gear compressor caused by excessive refrigerant oil being discharged from the exhaust pipe 25 of the worm gear compressor and entering the cold and heat system, thereby improving the reliability of the worm gear compressor and the heat exchange efficiency of the cold and heat system.

[0035] In addition, the refrigerant oil in the oil inlet channel 12 can be input into the first gap through the first transverse hole 11 to lubricate the crankshaft 3 and the auxiliary support 5; the refrigerant oil in the oil inlet channel 12 can be input into the second gap through the second transverse hole 17 to lubricate the crankshaft 3 and the moving worm gear 7; the refrigerant oil in the oil inlet channel 12 can be input into the third gap through the third transverse hole 19 to lubricate the crankshaft 3 and the main support 2; at the same time, the first transverse hole 11, the second transverse hole 17 and the third transverse hole 19 can also ensure the circulation of refrigerant oil in this embodiment.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A refrigeration oil circulation structure based on a worm gear compressor, characterized in that, It includes an oil supply tank (10), an oil inlet channel (12), an oil pumping mechanism (26), an oil storage tank (18), an oil storage cup (14), and an oil guide pipe (13); The opening of the oil supply tank (10) faces upward. The gap between the crankshaft (3) of the worm gear compressor and the auxiliary support (5) is set as the first gap. The opening of the oil supply tank (10) is located directly below the first gap and is connected to the lower end of the first gap. The oil inlet channel (12) is coaxially opened inside the crankshaft (3) of the worm gear compressor. The lower end of the oil inlet channel (12) is connected to the opening of the oil supply tank (10). The gap between the crankshaft (3) of the worm gear compressor and the moving worm gear (7) is set as the second gap. The upper end of the oil inlet channel (12) is connected to the upper end of the second gap. The oil pump mechanism (26) is installed at the lower end of the oil inlet channel (12) and can transport the refrigeration oil at the lower end of the oil inlet channel (12) to the upper end of the oil inlet channel (12); The oil storage tank (18) is located between the main support (2) of the worm gear compressor and the moving worm gear (7). The oil storage tank (18) is connected to the lower end of the second gap. The gap between the crankshaft (3) of the worm gear compressor and the main support (2) is set as the third gap. The oil storage tank (18) is connected to the upper end of the third gap. The oil reservoir (14) is coaxially mounted on the crankshaft (3) of the worm gear compressor and located between the main support (2) of the worm gear compressor and the motor (4). The opening of the oil reservoir (14) faces upward and is located directly below the third gap and connected to the lower end of the third gap. The upper end of the oil guide pipe (13) is connected to the inside of the oil storage cup (14), and the lower end of the oil guide pipe (13) is connected to the upper end of the oil guide hole (6) of the rotor core of the worm gear compressor.

2. The refrigeration oil circulation structure based on a worm gear compressor according to claim 1, characterized in that, The oil pumping mechanism (26) is a gear pump, an eccentric pump, or an oil stirring plate.

3. The refrigeration oil circulation structure based on a worm gear compressor according to claim 1, characterized in that, An oil cup cover (15) is installed on the opening of the oil storage cup (14); The oil cup cover (15) has a through hole; The third gap is located inside the through hole, which is located between the upper and lower ends of the third gap.

4. The refrigeration oil circulation structure based on a worm gear compressor according to claim 1, characterized in that, It also includes a first transverse hole (11), a second transverse hole (17) and a third transverse hole (19), all of which are located inside the crankshaft (3) of the worm gear compressor. The two ends of the first transverse hole (11) are respectively connected to the oil inlet channel (12) and the first gap; The two ends of the second transverse hole (17) are respectively connected to the oil inlet channel (12) and the second gap; The two ends of the third transverse hole (19) are connected to the oil inlet channel (12) and the third gap, respectively.

5. A refrigeration oil circulation system based on a worm gear compressor, comprising a worm gear compressor, the worm gear compressor comprising a housing (1), a main support (2), a secondary support (5), a crankshaft (3), a moving worm gear (7), a fixed worm gear (8), an intake pipe (9), a motor (4), and an exhaust pipe (25); The shell (1) is a cylindrical structure with its axis perpendicular to the horizontal plane and open at both ends; The main support (2) and the secondary support (5) are coaxially installed in the openings at the upper and lower ends of the housing (1); The crankshaft (3) is coaxially installed inside the housing (1). The upper end of the crankshaft (3) is coaxially installed in the mounting hole of the main support (2). A third gap is formed between the crankshaft (3) and the main support (2). The lower end of the crankshaft (3) is coaxially installed in the mounting hole of the auxiliary support (5). A first gap is formed between the crankshaft (3) and the auxiliary support (5). The moving worm gear (7) is coaxially mounted on the crank at the upper end of the crankshaft (3) and located between the crankshaft (3) and the main support (2). A second gap is formed between the crankshaft (3) and the moving worm gear (7). The fixed worm gear (8) is located directly above the moving worm gear (7) and is assembled with the moving worm gear (7). A compression cavity is formed between the fixed worm gear (8) and the moving worm gear (7). The suction pipe (9) is mounted on the fixed worm gear (8) and communicates with the compression cavity. The motor (4) is installed inside the housing (1) and located between the main support (2) and the auxiliary support (5). The rotor (401) of the motor (4) is coaxially installed on the crankshaft (3). The stator (402) of the motor (4) is coaxially installed on the inner wall of the housing (1). The rotor (401) of the motor (4) has a rotor core oil guide hole (6). An oil storage chamber (21) is formed between the rotor (401) of the motor (4) and the auxiliary support (5). The lower end of the rotor core oil guide hole (6) and the upper end of the first gap are both connected to the oil storage chamber (21). An exhaust chamber is formed between the motor (4) and the main support (2), and the exhaust pipe (25) is installed on the housing (1) and communicates with the exhaust chamber; Its features are, It also includes the refrigeration oil circulation structure based on a worm gear compressor as described in any one of claims 1 to 4; The opening of the oil supply tank (10) in the refrigeration oil circulation structure based on the worm gear compressor is located directly below the first gap and is connected to the lower end of the first gap; The oil inlet channel (12) in the refrigeration oil circulation structure based on the worm gear compressor is coaxially opened inside the crankshaft (3). The upper end and lower end of the oil inlet channel (12) are respectively connected to the upper end of the second gap and the opening of the oil supply tank (10). The oil pump mechanism (26) in the refrigeration oil circulation structure based on the worm gear compressor is installed at the lower end of the oil inlet channel (12) and can transport the refrigeration oil at the lower end of the oil inlet channel (12) to the upper end of the oil inlet channel (12); The oil storage tank (18) in the refrigeration oil circulation structure based on the worm gear compressor is located between the main support (2) and the moving worm gear (7). The lower end of the second gap and the upper end of the third gap are both connected to the oil storage tank (18). The oil reservoir (14) in the refrigeration oil circulation structure based on the worm gear compressor is coaxially mounted on the crankshaft (3) and located between the main support (2) and the motor (4). The opening of the oil reservoir (14) is located directly below the third gap and is connected to the lower end of the third gap. The upper and lower ends of the oil guide pipe (13) in the refrigeration oil circulation structure based on the worm gear compressor are respectively connected to the inside of the oil storage cup (14) and the upper end of the oil guide hole (6) of the rotor core.

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