Transmission mechanism of screw refrigeration compressor

Abstract

The invention belongs to the technical field of screw refrigeration compressors, particularly relates to a transmission mechanism of a screw refrigeration compressor, and aims to solve the problems that an existing screw refrigeration compressor is low in working efficiency during use, a working motor is inconvenient to quickly replace when having a fault, a large amount of time needs to be consumed for maintenance, and the working efficiency is reduced. According to the technical scheme, the screw compressor is used for compressing air, an air inlet is formed in the top of the screw compressor, an air outlet is formed in the bottom of the screw compressor, an air pressure tank is arranged at the bottom of the air outlet, a one-way air valve is arranged on the air outlet and used for storing compressed air, and the screw compressor is installed at the top of the air pressure tank. And four shock absorbers are arranged at the bottom of the air pressure tank. According to the screw compressor, through the design of the speed increasing gear, the working efficiency of the screw compressor can be improved, the motor can be rapidly replaced, the working efficiency is improved, and the interior of the speed increasing shell can be cooled during speed increasing work.

Description

Technical Field

[0001] The present invention relates to the technical field of screw refrigeration compressors, and in particular to a transmission mechanism of a screw refrigeration compressor. Background Art

[0002] The refrigeration compressor is the most important equipment in a refrigeration system, often referred to as the main unit. The compressor increases the refrigerant vapor pressure from low to high, as well as the continuous flow and transportation of the vapor. Screw refrigeration compressors have poor vibration damping properties, and the vibrations they generate during operation can affect the normal operation of the electrical control cabinet.

[0003] Announcement No.: CN221257129U discloses a screw refrigeration compressor, including an evaporator, a motor, a compressor, a controller, a support frame, and a base. The motor is fixedly connected to the center of the top of the evaporator, the compressor is fixedly connected to the rear of the motor, the controller is fixedly connected to the front end of the top of the evaporator, the support frame is fixedly connected to the bottom of the evaporator, and the base is fixedly connected to the bottom of the support frame. The design structure of the existing screw refrigeration compressor is improved, so that it has a better shock absorption function, which prevents the compressor from affecting the normal operation of the electric control cabinet when it is working.

[0004] The existing screw refrigeration compressor has low working efficiency during use. When the working motor fails, it is not convenient to quickly replace it, and it takes a lot of time to maintain it, which reduces working efficiency. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the existing screw refrigeration compressor, such as low working efficiency during use, inconvenience in quickly replacing the working motor when a failure occurs, requiring a lot of time for maintenance, and reducing working efficiency, and to propose a transmission mechanism for the screw refrigeration compressor.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A transmission mechanism for a screw refrigeration compressor, comprising:

[0008] A screw compressor is used to compress air, with an air inlet at the top and an air outlet at the bottom. A pressure tank is provided at the bottom of the air outlet, and a one-way air valve is provided on the air outlet to store compressed air. The screw compressor is installed on the top of the pressure tank, and four shock absorbers are provided at the bottom of the pressure tank. The bottoms of the four shock absorbers are all provided with a bottom plate.

[0009] Speed increasing housing, installed on the top of the air pressure tank;

[0010] The speed increasing mechanism is installed inside the speed increasing housing to improve the working efficiency of the screw compressor;

[0011] The regulating mechanism is installed on the top of the air pressure tank. A motor is installed on the regulating mechanism, and the motor is connected to the speed increasing mechanism.

[0012] Preferably, the screw compressor is provided with two screw shafts, the outer ends of the two screw shafts are fixedly mounted with gears, the two gears are meshed with each other, and the two gears are provided with multiple air holes. The air holes on the two gears can reduce the resistance to air circulation.

[0013] Preferably, the speed increasing mechanism includes a first speed increasing gear and a second speed increasing gear, the second speed increasing gear is fixedly installed on one of the two screw shafts, a driving shaft is installed on the first speed increasing gear, and the driving shaft is rotatably installed on the speed increasing housing through a bearing, the first speed increasing gear is meshed with the second speed increasing gear, and the diameter of the first speed increasing gear is smaller than the diameter of the second speed increasing gear; the motor drives the connecting block to rotate, and the connecting block drives the second speed increasing gear to rotate through the driving shaft. Since the diameter of the first speed increasing gear is smaller than the diameter of the second speed increasing gear, the first speed increasing gear can rotate quickly, and the first speed increasing gear drives a screw shaft to rotate. Through the cooperation of the two gears, the two screw shafts can rotate synchronously and in opposite directions, so that the screw compressor can work normally and improve work efficiency.

[0014] Preferably, a fan is installed on one of the two screw shafts for cooling the interior of the speed increasing housing. An air inlet is provided on the right side of the speed increasing housing, and an air outlet is provided on the left side of the speed increasing housing.

[0015] Preferably, the adjustment mechanism includes a fixing bar, which is installed on the top of the air pressure tank. A slide groove is provided on the top of the fixing bar, a slider is slidably installed in the slide groove, a U-shaped plate is fixedly installed on the top of the slider, and the motor is installed in the U-shaped plate.

[0016] Preferably, screw rods are threadedly connected to both sides of the U-shaped plate, handles are fixedly installed on the outer ends of the two screw rods, and rubber plates are fixedly installed on the inner ends of the two screw rods, and the two rubber plates are used to squeeze and fix the motor.

[0017] Preferably, a rubber pad is installed on the bottom inner wall of the U-shaped plate to support the motor.

[0018] Preferably, a servo motor is installed on the outside of the fixing bar, a threaded rod is installed on the output shaft of the servo motor, the threaded rod is rotatably installed in the slide groove through a bearing, and the slider is threadedly connected to the outside of the threaded rod.

[0019] Preferably, a connecting block is installed at the right end of the driving shaft, a connecting groove is provided on the connecting block, two limit blocks are installed on the inner wall of the connecting groove, a limit slot is provided on the output shaft of the motor, the output shaft of the motor is inserted into the connecting groove, and the two limit blocks cooperate with the two limit slots; they are used to connect the output shaft of the motor with the connecting block.

[0020] Preferably, a dustproof plate is installed on the outer side of the speed increaser housing, a plurality of dustproof holes are provided on the dustproof plate, four positioning grooves are provided on the inner side of the dustproof plate, magnet blocks are provided on the inner walls of the four positioning grooves, and magnet rods are fixedly installed on the outer side of the speed increaser housing, the magnet rods are inserted into the positioning grooves and attracted to the magnet blocks; the dustproof plate is fixedly installed on the outer side of the speed increaser housing through the cooperation of the magnet blocks and the magnet rods.

[0021] In the present invention, the transmission mechanism of the screw refrigeration compressor has the following beneficial effects:

[0022] In this solution, the motor is installed in the U-shaped plate, and the two handles are rotated in sequence. The two handles push the two rubber plates through the two screws to fix the motor. The electrical appliance can be controlled by turning on the power supply and the PLC controller. The existing technology will not be described here. The servo motor drives the threaded rod to rotate, and the threaded rod drives the slider to slide in the slide groove. The slider drives the motor forward through the U-shaped plate, and the output shaft of the motor is inserted into the connecting groove. The limit block cooperates with the limit groove to connect the output shaft of the motor to the connecting block, so that the motor can be quickly installed and used. Similarly, the servo motor can be controlled in the reverse direction so that the output shaft of the motor leaves the connecting block, releasing the fixation of the motor. When the motor is damaged, the motor can be quickly disassembled and replaced, thereby improving work efficiency.

[0023] In this solution, the motor drives the connecting block to rotate, and the connecting block drives the second speed-increasing gear to rotate through the drive shaft. Since the diameter of the first speed-increasing gear is smaller than that of the second speed-increasing gear, the first speed-increasing gear can rotate quickly, and the first speed-increasing gear drives a screw shaft to rotate. Through the cooperation of the two gears, the two screw shafts can rotate synchronously and in opposite directions, so that the screw compressor can work normally and improve work efficiency.

[0024] In this solution, the screw shaft drives the fan to rotate, and the external air is filtered through multiple dustproof holes on the dustproof plate, then enters the interior of the speed increaser housing, and is then discharged through the air outlet, which can cool the interior of the speed increaser housing. The air holes on the two gears can reduce the resistance to air circulation;

[0025] The dustproof plate of this solution is fixedly installed on the outside of the speed increaser housing through the cooperation of the magnet block and the magnet rod, and the dustproof plate can be easily disassembled and cleaned.

[0026] The present invention can improve the working efficiency of the screw compressor through the design of the speed-increasing gear, can quickly replace the motor, improve the working efficiency, and can cool the inside of the speed-increasing housing when working at a higher speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a transmission mechanism of a screw refrigeration compressor proposed in the present invention;

[0028] Figure 2 This is a structural schematic diagram of part A of a transmission mechanism of a screw refrigeration compressor proposed by the present invention;

[0029] Figure 3 This is a structural schematic diagram of part B of a transmission mechanism of a screw refrigeration compressor proposed in the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the U-shaped plate and the motor fixed to the present invention;

[0031] Figure 5 This is a schematic structural diagram of the two screw shafts, two gears, a first speed-increasing gear, a second speed-increasing gear, and a fan proposed in the present invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the two gears proposed in the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of the connecting block proposed in the present invention.

[0034] Figure: 1, screw compressor; 2, air inlet; 3, air outlet; 4, one-way air valve; 5, air pressure tank; 6, speed increasing housing; 7, screw shaft; 8, gear; 9, first speed increasing gear; 10, fan; 11, air inlet; 12, dust plate; 13, air outlet; 14, dust hole; 15, magnet rod; 16, positioning groove; 17, magnet block; 18, drive shaft; 19, second speed increasing gear; 20, connecting block; 21 , connecting groove; 22, motor; 23, limit groove; 24, limit block; 25, fixing bar; 26, slide groove; 27, slider; 28, threaded rod; 29, servo motor; 30, U-shaped plate; 31, handle; 32, screw; 33, rubber plate; 34, rubber pad; 35, air vent; 36, external thread; 37, internal thread cap; 38, metal filter; 39, air inlet hole; 40, shock absorber; 41, bottom plate. DETAILED DESCRIPTION

[0035] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all the embodiments.

[0036] Example 1

[0037] Reference Figure 1-Figure 7 , a transmission mechanism of a screw refrigeration compressor, comprising:

[0038] The screw compressor 1 is used to compress air. An air inlet 2 is provided at the top, an air outlet 3 is provided at the bottom, an air pressure tank 5 is provided at the bottom of the air outlet 3, and a one-way air valve 4 is provided on the air outlet 3 for storing compressed air. The screw compressor 1 is installed on the top of the air pressure tank 5. Four shock absorbers 40 are provided at the bottom of the air pressure tank 5. The bottom of each of the four shock absorbers 40 is provided with a bottom plate 41.

[0039] The speed increasing housing 6 is mounted on the top of the air pressure tank 5;

[0040] A speed increasing mechanism, installed inside the speed increasing housing 6, for improving the working efficiency of the screw compressor 1;

[0041] The regulating mechanism is installed on the top of the air pressure tank 5. The regulating mechanism is equipped with a motor 22, which is connected to the speed increasing mechanism.

[0042] Reference Figure 6 In this embodiment, two screw shafts 7 are provided on the screw compressor 1. Gears 8 are fixedly installed on the outer ends of the two screw shafts 7. The two gears 8 are meshed with each other. A plurality of air holes 35 are opened on the two gears 8. The air holes 35 on the two gears 8 can reduce the resistance to air circulation.

[0043] Reference Figure 1 、 Figure 5 In this embodiment, the speed-increasing mechanism includes a first speed-increasing gear 9 and a second speed-increasing gear 19. The second speed-increasing gear 19 is fixedly installed with one of the two screw shafts 7. A drive shaft 18 is installed on the first speed-increasing gear 9. The drive shaft 18 is rotatably installed on the speed-increasing housing 6 through a bearing. The first speed-increasing gear 9 is meshed with the second speed-increasing gear 19. The diameter of the first speed-increasing gear 9 is smaller than the diameter of the second speed-increasing gear 19. The motor 22 drives the connecting block 20 to rotate, and the connecting block 20 drives the second speed-increasing gear 19 to rotate through the drive shaft 18. Since the diameter of the first speed-increasing gear 9 is smaller than the diameter of the second speed-increasing gear 19, the first speed-increasing gear 9 can rotate quickly. The first speed-increasing gear 9 drives one screw shaft 7 to rotate. Through the cooperation of the two gears 8, the two screw shafts 7 can rotate synchronously and in opposite directions, so that the screw compressor 1 can work normally and improve the working efficiency. A fan 10 is installed on one of the two screw shafts 7 for cooling the interior of the speed-increasing housing 6. An air inlet 11 is opened on the right side of the speed-increasing housing 6, and an air outlet 13 is opened on the left side of the speed-increasing housing 6.

[0044] Reference Figure 2In this embodiment, the adjustment mechanism includes a fixing bar 25, which is installed on the top of the air pressure tank 5. A slide groove 26 is provided on the top of the fixing bar 25, and a slider 27 is slidably installed in the slide groove 26. A U-shaped plate 30 is fixedly installed on the top of the slider 27, and the motor 22 is installed in the U-shaped plate 30.

[0045] Reference Figure 4 In this embodiment, screws 32 are threadedly connected to both sides of the U-shaped plate 30, handles 31 are fixedly installed at the outer ends of the two screws 32, and rubber plates 33 are fixedly installed at the inner ends of the two screws 32. The two rubber plates 33 are used to squeeze and fix the motor 22. A rubber pad 34 is installed on the bottom inner wall of the U-shaped plate 30 to support the motor 22.

[0046] Reference Figure 2 In this embodiment, a servo motor 29 is installed on the outside of the fixed bar 25, and a threaded rod 28 is installed on the output shaft of the servo motor 29. The threaded rod 28 is rotatably installed in the slide groove 26 through a bearing, and the slider 27 is threadedly connected to the outside of the threaded rod 28.

[0047] Reference Figure 2 In this embodiment, a connecting block 20 is installed at the right end of the drive shaft 18, and a connecting groove 21 is provided on the connecting block 20. Two limit blocks 24 are installed on the inner wall of the connecting groove 21. A limit groove 23 is provided on the output shaft of the motor 22. The output shaft of the motor 22 is inserted into the connecting groove 21, and the two limit blocks 24 cooperate with the two limit grooves 23; they are used to connect the output shaft of the motor 22 to the connecting block 20.

[0048] Reference Figure 2 In this embodiment, a dustproof plate 12 is installed on the outer side of the speed increasing housing 6, and a plurality of dustproof holes 14 are opened on the dustproof plate 12. Four positioning grooves 16 are opened on the inner side of the dustproof plate 12. Magnet blocks 17 are provided on the inner walls of the four positioning grooves 16. Magnet rods 15 are fixedly installed on the outer side of the speed increasing housing 6. The magnet rods 15 are inserted into the positioning grooves 16 and attracted by the magnet blocks 17; the dustproof plate 12 is fixedly installed on the outer side of the speed increasing housing 6 through the cooperation of the magnet blocks 17 and the magnet rods 15.

[0049] The working principle is that when in use, the motor 22 is installed in the U-shaped plate 30, and the two handles 31 are rotated in sequence. The two handles 31 push the two rubber plates 33 through the two screws 32 to fix the motor 22. When the power is turned on and the PLC controller is used for electrical control, the existing technology will not be described in detail here. The servo motor 29 drives the threaded rod 28 to rotate, and the threaded rod 28 drives the slider 27 to slide in the slide groove 26. The slider 27 drives the motor 22 forward through the U-shaped plate 30, and the output shaft of the motor 22 is inserted into the connecting groove 21. The limit block 24 cooperates with the limit groove 23 to connect the output shaft of the motor 22 to the connecting block 20, so that the motor 22 can be quickly installed and used. Similarly, the servo motor 29 is controlled in the reverse direction so that the output shaft of the motor 22 leaves the connecting block 20, releasing the fixation of the motor 22. When the motor 22 is damaged, the motor 22 can be quickly disassembled and replaced, thereby improving work efficiency.

[0050] The motor 22 drives the connecting block 20 to rotate, and the connecting block 20 drives the second speed-increasing gear 19 to rotate through the drive shaft 18. Since the diameter of the first speed-increasing gear 9 is smaller than that of the second speed-increasing gear 19, the first speed-increasing gear 9 can rotate quickly, and the first speed-increasing gear 9 drives one screw shaft 7 to rotate. Through the cooperation of the two gears 8, the two screw shafts 7 can rotate synchronously and in opposite directions, so that the screw compressor 1 can work normally and improve the working efficiency.

[0051] During operation, the screw shaft 7 drives the fan 10 to rotate, and the external air is filtered through the multiple dustproof holes 14 on the dustproof plate 12, and then enters the interior of the speed increaser housing 6, and is then discharged through the air outlet 13, which can cool the interior of the speed increaser housing 6. The air holes 35 on the two gears 8 can reduce the resistance to air circulation;

[0052] The dustproof plate 12 is fixedly mounted on the outer side of the speed increasing housing 6 by the cooperation between the magnet block 17 and the magnet rod 15 , so that the dustproof plate 12 can be easily disassembled and cleaned.

[0053] Example 2

[0054] The rest of the embodiment 2 is the same as the embodiment 1, except that: the air inlet 2 is a curved structure, and an external thread 36 is provided on the outside of the air inlet 2. The external thread 36 is threadedly connected to the external thread of the internal thread cap 37, and a plurality of air inlet circular holes 39 are provided on the internal thread cap 37. A metal filter 38 is provided on the inside of the internal thread cap 37. The metal filter 38 can be used to prevent dust from entering the screw compressor 1 through the air inlet 2. The internal thread cap 37 and the external thread 36 can be disassembled, and the metal filter 38 can be disassembled and cleaned. This application includes all the structural shapes, sizes and materials of embodiment 1. In order to meet the specific usage conditions, they can all be selected and adjusted. The accompanying drawings are all schematic structural diagrams, and the specific actual sizes can be appropriately adjusted.

[0055] The above is only a preferred specific implementation method of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with this technical field can make equivalent replacements or changes based on the technical solution and inventive concept of this embodiment within the technical scope disclosed in this embodiment, and they should be covered by the protection scope of this embodiment.

Claims

1. A transmission mechanism for a screw refrigeration compressor, characterized in that: include: A screw compressor (1) is used for compressing air, and is provided with an air inlet (2) at the top and an air outlet (3) at the bottom. A pressure tank (5) is provided at the bottom of the air outlet (3). A one-way air valve (4) is provided on the air outlet (3) for storing compressed air. The screw compressor (1) is installed on the top of the pressure tank (5). Four shock absorbers (40) are provided at the bottom of the pressure tank (5). The bottoms of the four shock absorbers (40) are all provided with a bottom plate (41). A speed increasing housing (6) is mounted on the top of the air pressure tank (5); A speed increasing mechanism, installed inside the speed increasing housing (6), for improving the working efficiency of the screw compressor (1); The regulating mechanism is installed on the top of the air pressure tank (5), and a motor (22) is installed on the regulating mechanism, and the motor (22) is connected to the speed increasing mechanism.

2. The transmission mechanism of a screw refrigeration compressor according to claim 1, characterized in that: The screw compressor (1) is provided with two screw shafts (7), the outer ends of the two screw shafts (7) are fixedly mounted with gears (8), the two gears (8) are meshed with each other, and the two gears (8) are provided with a plurality of air holes (35).

3. The transmission mechanism of a screw refrigeration compressor according to claim 2, characterized in that: The speed-increasing mechanism comprises a first speed-increasing gear (9) and a second speed-increasing gear (19), wherein the second speed-increasing gear (19) is fixedly mounted on one of the two screw shafts (7), a drive shaft (18) is mounted on the first speed-increasing gear (9), and the drive shaft (18) is rotatably mounted on the speed-increasing housing (6) via a bearing, the first speed-increasing gear (9) is meshed with the second speed-increasing gear (19), and the diameter of the first speed-increasing gear (9) is smaller than the diameter of the second speed-increasing gear (19).

4. The transmission mechanism of a screw refrigeration compressor according to claim 2, characterized in that: A fan (10) is installed on one of the two screw shafts (7) for cooling the interior of the speed increasing housing (6). An air inlet (11) is provided on the right side of the speed increasing housing (6), and an air outlet (13) is provided on the left side of the speed increasing housing (6).

5. The transmission mechanism of a screw refrigeration compressor according to claim 1, characterized in that: The regulating mechanism comprises a fixing bar (25), the fixing bar (25) being mounted on the top of the air pressure tank (5), a slide groove (26) being provided on the top of the fixing bar (25), a slider (27) being slidably mounted in the slide groove (26), a U-shaped plate (30) being fixedly mounted on the top of the slider (27), and the motor (22) being mounted in the U-shaped plate (30).

6. The transmission mechanism of a screw refrigeration compressor according to claim 5, characterized in that: Both sides of the U-shaped plate (30) are threadedly connected with screw rods (32), the outer ends of the two screw rods (32) are fixedly mounted with handles (31), and the inner ends of the two screw rods (32) are fixedly mounted with rubber plates (33), and the two rubber plates (33) are used to squeeze and fix the motor (22).

7. The transmission mechanism of a screw refrigeration compressor according to claim 5, characterized in that: A rubber pad (34) is installed on the bottom inner wall of the U-shaped plate (30) to support the motor (22).

8. The transmission mechanism of a screw refrigeration compressor according to claim 5, characterized in that: A servo motor (29) is installed on the outside of the fixing bar (25), a threaded rod (28) is installed on the output shaft of the servo motor (29), the threaded rod (28) is rotatably installed in the slide groove (26) through a bearing, and the slider (27) is threadedly connected to the outside of the threaded rod (28).

9. The transmission mechanism of a screw refrigeration compressor according to claim 3, characterized in that: A connecting block (20) is installed at the right end of the driving shaft (18), and a connecting groove (21) is provided on the connecting block (20). Two limit blocks (24) are installed on the inner wall of the connecting groove (21). A limit groove (23) is provided on the output shaft of the motor (22). The output shaft of the motor (22) is inserted into the connecting groove (21), and the two limit blocks (24) cooperate with the two limit grooves (23).

10. The transmission mechanism of a screw refrigeration compressor according to claim 1, characterized in that: A dustproof plate (12) is installed on the outer side of the speed increasing housing (6), and a plurality of dustproof holes (14) are provided on the dustproof plate (12). Four positioning grooves (16) are provided on the inner side of the dustproof plate (12), and magnet blocks (17) are provided on the inner walls of the four positioning grooves (16). A magnet rod (15) is fixedly installed on the outer side of the speed increasing housing (6), and the magnet rod (15) is inserted into the positioning groove (16) and attracted to the magnet block (17).

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