Hydraulic device for starting a heavy-duty steam compressor

Abstract

This application belongs to the field of equipment manufacturing for assisting the starting of heavy-duty steam compressors, specifically a hydraulic device for starting a heavy-duty steam compressor. It includes a support frame, on which a hydraulic motor and a transfer plate are fixedly mounted. A small gear is coaxially mounted on the transfer plate. The output end of the hydraulic motor is connected to a perforated connector, and the output end of the perforated connector is axially fixedly connected to a drive shaft. The input end of an overrunning clutch is connected to the drive shaft via a key. The output end of the overrunning clutch is coaxially fixedly connected to a large gear meshing with the small gear. The two ends of the transfer plate are respectively provided with a main motor connection end and a diaphragm coupling connection end. This application uses a hydraulic motor in conjunction with an overrunning clutch to design a hydraulic device for starting a heavy-duty steam compressor, solving the problem of how to avoid excessively high starting torque and starting current, or even failure to start, when heavy-duty steam compressors use sliding bearings.

Description

Technical Field

[0001] This application belongs to the field of equipment manufacturing for assisting the starting of heavy-duty steam compressors, specifically a hydraulic device for starting heavy-duty steam compressors. Background Technology

[0002] Heavy-duty steam compressors have heavy impellers and rotors and operate at high speeds, so rolling bearings are often insufficient and sliding bearings are usually used. During startup, the shaft and bearing bush cannot form a hydrodynamic oil film, resulting in dry friction, which leads to very high starting torque and starting current, and sometimes even prevents startup. Utility Model Content

[0003] The purpose of this application is to address the shortcomings of existing technologies by designing a hydraulic device for starting heavy-duty steam compressors using a hydraulic motor in conjunction with an overrunning clutch. This solves the problem of how to avoid excessively large starting torque and starting current, or even failure to start, when heavy-duty steam compressors use sliding bearings.

[0004] To achieve the above objectives, the technical solution adopted in this application is:

[0005] A hydraulic device for starting a heavy-duty steam compressor includes a support frame, on which a hydraulic motor and a transfer plate are fixedly mounted. A small gear is coaxially mounted on the transfer plate. The output end of the hydraulic motor is connected to a perforated connector. The output end of the perforated connector is axially fixedly connected to a drive shaft. The input end of an overrunning clutch is connected to the drive shaft via a key. The output end of the overrunning clutch is coaxially fixedly connected to a large gear that meshes with the small gear. The two ends of the transfer plate are respectively provided with a main motor connection end and a diaphragm coupling connection end.

[0006] Preferably, the drive shaft is mounted on a bearing housing via a deep groove bearing, and the bearing housing is fixedly mounted on the bracket.

[0007] Preferably, the bracket is provided with an adjuster for adjusting the position of the bearing seat on the bracket.

[0008] Preferably, the adjuster includes a first adjusting block and a first adjusting bolt. The bearing seat has a first large through hole. The first locking bolt passes through the first large through hole from the side of the bearing seat away from the bracket and engages with a small threaded hole on the upper surface of the bracket. The outer diameter of the bolt shank of the first locking bolt is larger than the inner diameter of the first large through hole. The first adjusting block is located on the side wall of the bracket and has a threaded hole A. The axis of the threaded hole A is parallel to the upper surface of the bracket. The first adjusting bolt is screwed into the threaded hole A from the side of the first adjusting block away from the bearing seat and abuts against the side wall of the bearing seat.

[0009] Preferably, the pinion is fixed to the adapter plate by a shrink sleeve.

[0010] Preferably, the hydraulic motor is fixedly mounted on the support, the support has a second large through hole, the upper surface of the bracket has a threaded hole B, and the second locking bolt passes through the second large through hole from the side of the support facing away from the bracket and then engages with the threaded hole B.

[0011] Preferably, a second adjusting block is provided on the side wall of the bracket, and a threaded hole C is provided on the second adjusting block. A second adjusting bolt passes through the threaded hole C from the side of the second adjusting block facing away from the bracket and then abuts against the side wall of the support.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] This application employs a hydraulic motor in conjunction with an overrunning clutch to design a hydraulic device for starting heavy-duty steam compressors. This solves the problem of how to avoid excessively high starting torque and starting current, or even failure to start, when heavy-duty steam compressors use sliding bearings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this application;

[0015] Figure 2 for Figure 1 Enlarged view of point B in the middle;

[0016] Figure 3 for Figure 1 A magnified view of point A;

[0017] Figure 4 This is a schematic diagram showing the first and second locking bolts being unscrewed in this application.

[0018] The components are as follows: 1. Bracket; 2. Hydraulic motor; 3. Adapter plate; 4. Pinion; 5. Plum blossom connector; 6. Drive shaft; 7. Overrunning clutch; 8. Large gear; 9. Bearing seat; 10. First adjusting block; 11. First adjusting bolt; 12. First large through hole; 13. First locking bolt; 14. Threaded hole A; 15. Support; 16. Second adjusting block; 17. Threaded hole C; 18. Second large through hole; 19. Second adjusting bolt; 20. Hydraulic oil distribution block; 21. Second locking bolt. Detailed Implementation

[0019] like Figures 1-4As shown, a hydraulic device for starting a heavy-duty steam compressor includes a bracket 1, on which a hydraulic motor 2 and a transfer plate 3 are fixedly mounted. A small gear 4 is coaxially mounted on the transfer plate 3. The output end of the hydraulic motor 2 is connected to a perforated connector 5. The output end of the perforated connector 5 is axially fixedly connected to a drive shaft 6. The input end of an overrunning clutch 7 is connected to the drive shaft 6 via a key. The output end of the overrunning clutch 7 is coaxially fixedly connected to a large gear 8 that meshes with the small gear 4. The two ends of the transfer plate 3 are respectively provided with a main motor connection end and a diaphragm coupling connection end.

[0020] In this embodiment, hydraulic oil with a certain pressure and flow rate is supplied to the hydraulic motor 2 through the hydraulic station, driving the hydraulic motor 2 to rotate. The power is transmitted to the transmission shaft 6 through the plum blossom connector 5, and then to the large gear 8 through the overrunning clutch 7. The large gear 8 meshes with the small gear 4, driving the main motor and the heavy-duty steam compressor to rotate at low speed. After rotation, the compressor sliding bearing forms a dynamic pressure oil film. Then the main motor is started. When the speed of the main motor exceeds the speed of the hydraulic motor 2 calculated according to the transmission ratio, the power of the main motor and the hydraulic motor 2 is disengaged.

[0021] In a preferred embodiment, the drive shaft 6 is mounted on a bearing housing 9 via a deep groove bearing, and the bearing housing 9 is fixedly mounted on the bracket 1; the drive shaft 6 is mounted via a deep groove bearing.

[0022] As a preferred embodiment, the bracket 1 is provided with an adjuster for adjusting the position of the bearing seat 9 on the bracket 1.

[0023] In a preferred embodiment, the adjuster includes a first adjusting block 10 and a first adjusting bolt 11. The bearing seat 9 has a first large through hole 12. A first locking bolt 13 passes through the first large through hole 12 from the side of the bearing seat 9 facing away from the bracket 1 and engages with a small threaded hole on the upper surface of the bracket 1. The outer diameter of the shank of the first locking bolt 13 is larger than the inner diameter of the first large through hole 12. The first adjusting block 10 is located on the side wall of the bracket 1 and has a threaded hole A14. The axis of the threaded hole A14 is parallel to the upper surface of the bracket 1. The first adjusting bolt 11 is screwed into the threaded hole A14 from the side of the first adjusting block 10 facing away from the bearing seat 9 and abuts against the side wall of the bearing seat 9. During adjustment, the first locking bolt 13 is first loosened. By screwing the first adjusting bolt 11 into the threaded hole A14, the bearing seat 9 is pushed, thereby fine-tuning its position on the bracket 1. After adjustment, the first locking bolt 13 is tightened.

[0024] In a preferred embodiment, the pinion 4 is fixed to the adapter plate 3 by a shrink sleeve. The adapter plate 3 is driven by the pinion 4.

[0025] In a preferred embodiment, the hydraulic motor 2 is fixedly mounted on the support 15, which has a second large through hole 18. The upper surface of the bracket 1 has a threaded hole B. A second locking bolt 21 passes through the second large through hole 18 from the side of the support 15 facing away from the bracket 1 and engages with the threaded hole B. The support 15 is then locked to the bracket 1 by the second locking bolt 21.

[0026] Preferably, a hydraulic oil distribution block is installed on the hydraulic motor 2.

[0027] As a preferred embodiment, a second adjusting block 16 is provided on the side wall of the bracket 1. The second adjusting block 16 has a threaded hole C17. A second adjusting bolt 19 passes through the threaded hole C17 from the side of the second adjusting block 16 facing away from the bracket 1 and abuts against the side wall of the support 15. With this configuration, the position of the support 15 on the bracket 1 is adjusted by the length of the second adjusting bolt 19 screwed into the threaded hole C17, thereby adjusting the optimal mating position between the hydraulic motor 2 and the drive shaft 6.

Claims

1. A hydraulic device for starting a heavy-duty steam compressor, characterized in that, The device includes a bracket (1), on which a hydraulic motor (2) and a transfer plate (3) are fixedly mounted. A small gear (4) is coaxially mounted on the transfer plate (3). The output end of the hydraulic motor (2) is connected to a plum blossom connector (5). The output end of the plum blossom connector (5) is axially fixedly connected to a transmission shaft (6). The input end of an overrunning clutch (7) is connected to the transmission shaft (6) via a flat key. The output end of the overrunning clutch (7) is coaxially fixedly connected to a large gear (8) that meshes with the small gear (4). The two ends of the transfer plate (3) are respectively provided with a main motor connection end and a diaphragm coupling connection end.

2. A hydraulic device for starting a heavy-duty steam compressor according to claim 1, characterized in that, The drive shaft (6) is mounted on the bearing seat (9) via a deep groove bearing, and the bearing seat (9) is fixedly mounted on the bracket (1).

3. A hydraulic device for starting a heavy-duty steam compressor according to claim 2, characterized in that, The bracket (1) is provided with an adjuster for adjusting the position of the bearing seat (9) on the bracket (1).

4. A hydraulic device for starting a heavy-duty steam compressor according to claim 3, characterized in that, The adjuster includes a first adjusting block (10) and a first adjusting bolt (11). The bearing seat (9) is provided with a first large through hole (12). A first locking bolt (13) passes through the first large through hole (12) from the side of the bearing seat (9) away from the bracket (1) and then engages with a small threaded hole on the upper surface of the bracket (1). The outer diameter of the bolt shank of the first locking bolt (13) is larger than the inner diameter of the first large through hole (12). The first adjusting block (10) is provided on the side wall of the bracket (1). The first adjusting block (10) is provided with a threaded hole A (14). The axis of the threaded hole A (14) is parallel to the upper surface of the bracket (1). The first adjusting bolt (11) is screwed into the threaded hole A (14) from the side of the first adjusting block (10) away from the bearing seat (9) and then abuts against the side wall of the bearing seat (9).

5. A hydraulic device for starting a heavy-duty steam compressor according to claim 1, characterized in that, The pinion (4) is fixed to the adapter plate (3) by a shrink sleeve.

6. A hydraulic device for starting a heavy-duty steam compressor according to claim 1, characterized in that, The hydraulic motor (2) is fixed on the support (15). The support (15) has a second large through hole (18). The upper surface of the bracket (1) has a threaded hole B. The second locking bolt (21) passes through the second large through hole (18) from the side of the support (15) facing away from the bracket (1) and then engages with the threaded hole B.

7. A hydraulic device for starting a heavy-duty steam compressor according to claim 6, characterized in that, The support (1) has a second adjusting block (16) on its side wall. The second adjusting block (16) has a threaded hole C (17). The second adjusting bolt (19) passes through the threaded hole C (17) from the side of the second adjusting block (16) facing away from the support (1) and then abuts against the side wall of the support (15).

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