Detachable transmission gear box of steam power centrifugal compressor

Abstract

The invention relates to the technical field of transmission gear boxes, and particularly discloses a detachable steam power centrifugal compressor transmission gear box which comprises a fixed outer box, a transmission middle box and a lubricating inner box, the transmission middle box is movably arranged in the fixed outer box, and the transmission middle box is composed of a gear box upper part and a gear box lower part; the two sides of the gear box upper portion and the two sides of the gear box lower portion are arranged in the fixed outer box in an up-down sliding mode, and the bottom of the gear box lower portion is fixedly connected with the top of the mounting base through bolts. When the gear box upper portion and the gear box lower portion are disassembled, the upper supporting frame slides upwards, the lower supporting frame slides downwards, then the gear box lower portion is controlled to slide upwards in the fixed outer box, and the gear box upper portion is controlled to slide downwards in the fixed outer box, so that quick disassembling operation of the gear box upper portion and the gear box lower portion is achieved. Therefore, the overhaul and maintenance efficiency of an internal transmission structure of the transmission gear box can be further improved.

Description

Technical Field

[0001] This invention relates to the field of transmission gearbox technology, specifically to a detachable transmission gearbox for a steam-powered centrifugal compressor. Background Technology

[0002] Existing steam-powered centrifugal compressor transmission gearboxes mostly adopt an integral housing structure, with the transmission components integrated into a fixed housing. The gearbox structure disclosed in Chinese patent CN210034357U has its pressure end bearing oil return chamber connected to the gearbox breather hole via a connecting pipe to balance the air pressure. However, complete disassembly requires the complete dismantling of the gearbox, involving cumbersome steps such as bolt removal, shaft alignment, and seal replacement, with a single maintenance cycle lasting several days.

[0003] Traditional maintenance methods rely on large hoisting equipment, resulting in high replacement costs and significant downtime losses for gearboxes in fields such as wind power. In addition, the positioning accuracy of the gearbox's internal transmission structure depends on manual adjustment, which can easily lead to alignment errors during secondary installation, affecting the stability of equipment operation. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a detachable steam-powered centrifugal compressor transmission gearbox to solve the aforementioned technical defects.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a detachable steam-powered centrifugal compressor transmission gearbox, comprising:

[0006] The fixed outer casing has a disassembly and assembly top frame fixed to its top by bolts, and an installation base fixed to its bottom by bolts; maintenance components are provided on both the left and right sides of the fixed outer casing, and a replacement movable frame is also fixed to its front by bolts.

[0007] The transmission intermediate box is movably installed inside the fixed outer box. The transmission intermediate box consists of two parts: an upper gear box and a lower gear box. Both sides of the upper and lower gear box are slidably installed vertically inside the fixed outer box. The bottom of the lower gear box is fixedly connected to the top of the mounting base by bolts.

[0008] The gearbox has a lubrication inner housing. A transmission input shaft is rotatably mounted on the right side of the upper interior of the gearbox, and the front end of the transmission input shaft passes through the upper part of the gearbox and the fixed outer housing and extends to the front side of the fixed outer housing. A transmission shaft is rotatably mounted on the left side of the upper interior of the gearbox, and a transmission output shaft is rotatably mounted on the left side of the lower interior of the gearbox, and the rear end of the transmission output shaft passes through the lower part of the gearbox and the fixed outer housing and extends to the rear side of the fixed outer housing. A lubrication inner housing is provided on one side of each of the transmission input shaft, transmission shaft, and transmission output shaft.

[0009] Furthermore, a lower support frame is slidably provided on the front of the fixed outer casing, and the bottom of the lower support frame extends to the bottom of the mounting base, and the top of the lower support frame contacts the lower surface of the transmission input shaft; an upper support frame is also slidably provided on the back of the fixed outer casing, and the top of the upper support frame extends to the top of the disassembly top frame, and the bottom of the upper support frame contacts the upper surface of the transmission output shaft.

[0010] Furthermore, the fixed outer casing is provided with inspection ports on both the left and right sides. The inspection assembly includes a movable side plate. Rotating shafts are fixedly provided on the upper front and rear sides of the movable side plate, and one end of each rotating shaft is rotatably connected to the upper front and rear sides of the inner wall of the inspection port.

[0011] Furthermore, both sides of the front of the fixed outer casing are rotatably provided with crank handles, and the rear ends of the two crank handles are fixedly provided with drive shafts. The surfaces of the rotating shaft and the drive shaft are fixedly provided with transmission sprockets, and the surfaces of the two transmission sprockets are connected by a transmission chain.

[0012] Furthermore, both sides of the lower top of the gearbox are fixed with positioning connecting brackets by bolts, and positioning pins are fixed on the front and rear sides of the bottom of the two positioning connecting brackets. Both sides of the upper top of the gearbox are provided with positioning holes that cooperate with the positioning pins, and one end of the positioning pin is movably connected to the inside of the positioning hole.

[0013] Furthermore, several permanent magnets are fixedly installed on both sides of the top of the gearbox, and soft magnetic alloy bases are fixedly installed on both sides of the bottom of the gearbox. Electromagnetic coils are fixedly installed on the opposite sides of the two movable side plates, and the two electromagnetic coils are respectively on the same horizontal line as the several permanent magnets. Servo electric cylinders are fixedly installed around the top of the disassembly and assembly top frame, and the two servo electric cylinders on the left and the two servo electric cylinders on the right are respectively fixedly connected to the top of the positioning connection frame on the left and right sides.

[0014] Furthermore, a drive gear is fixedly provided on one side of the surface of the transmission input shaft, and a first transmission gear and a second transmission gear are fixedly provided on the front and rear sides of the surface of the transmission shaft, respectively, and the tooth surface of the first transmission gear meshes with the tooth surface of the drive gear; a third transmission gear is also fixedly provided on the front side of the surface of the transmission output shaft, and the tooth surface of the third transmission gear meshes with the tooth surface of the second transmission gear.

[0015] Furthermore, the lubrication inner box consists of two lubrication parts, an upper and an lower one, which are respectively located above and below the surfaces of the drive gear, transmission gear one, transmission gear two, and transmission gear three. The upper and lower lubrication parts are connected by magnetic adsorption. A lubrication nozzle is fixedly installed on one side of the inner wall of the upper lubrication part, and an oil drain pipe is installed at the bottom of the lower lubrication part, with the other end of the oil drain pipe extending to the outside of the transmission inner box.

[0016] Furthermore, the front of the replaceable movable frame is provided with an oil injection nozzle, and one end of the oil injection nozzle is connected to the inside of several lubrication nozzles inside the lubrication inner box through an oil guide pipe.

[0017] Furthermore, the lubrication nozzle is a 45° fan-shaped nozzle with an orifice diameter of Φ1.2mm; the oil drain pipe is a Φ8mm stainless steel corrugated pipe with a path slope ≥3°.

[0018] The beneficial effects achieved by the present invention using the above structure are as follows:

[0019] 1. The lower support frame on the front and the upper support frame on the back of the fixed outer casing can provide temporary support for the transmission input shaft and transmission output shaft respectively during disassembly, preventing the shaft system from deforming due to its own weight; the sliding adjustment support method can not only adapt to the separation stroke of the upper and lower parts of the gearbox, but also ensure the positioning accuracy of the shaft system during disassembly and assembly, reduce the alignment error during secondary installation, and improve the operational stability of the equipment after maintenance.

[0020] 2. When disassembling the upper and lower parts of the gearbox, the upper support frame is slid upward and the lower support frame is slid downward. Then, the lower part of the gearbox is controlled to slide upward inside the fixed outer casing, and the upper part of the gearbox is controlled to slide downward inside the fixed outer casing. This allows for quick disassembly of the upper and lower parts of the gearbox, thereby further improving the efficiency of inspection and maintenance of the internal transmission structure of the transmission gearbox.

[0021] 3. The fixed outer casing is securely installed by disassembling and assembling the top frame and mounting base. The maintenance components on its left and right sides form a flexible maintenance channel: when the crank handle is turned, the drive shaft drives the rotating shaft to rotate through the transmission sprocket and transmission chain, causing the movable side plate to flip open from the maintenance port. The internal structure can be exposed without disassembling the entire gearbox, avoiding the cumbersome process of traditional whole disassembly, significantly shortening the maintenance preparation time and improving the timeliness of equipment maintenance. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1This is a schematic diagram of a detachable steam-powered centrifugal compressor transmission gearbox structure according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the fixed outer casing according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the fixed outer casing, disassembly and assembly of the top frame and the upper structure of the gearbox according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the upper and lower structures of the gearbox according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the structure of the transmission input shaft, transmission shaft, and transmission output shaft according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the rotating shaft, drive shaft, and transmission chain structure according to an embodiment of the present invention.

[0029] In the diagram: 1. Fixed outer casing; 2. Transmission middle casing; 3. Lubrication inner casing; 4. Mounting base; 5. Top frame for disassembly and assembly; 6. Movable frame for replacement; 7. Movable side plate; 8. Transmission input shaft; 9. Transmission output shaft; 10. Upper part of gearbox; 11. Lower part of gearbox; 12. Positioning connecting frame; 13. Servo electric cylinder; 14. Positioning pin; 15. Positioning hole; 16. Permanent magnet; 17. Electromagnetic coil; 18. Inspection port; 19. Rotating shaft; 20. Drive shaft; 21. Handle; 22. Transmission sprocket; 23. Transmission chain; 24. Drive gear; 25. Transmission gear one; 26. Transmission gear two; 27. Transmission gear three; 28. Transmission shaft; 29. ​​Lower support frame; 30. Upper support frame. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Example 1

[0033] Please see Figures 1 to 6 As shown, a detachable steam-powered centrifugal compressor transmission gearbox includes:

[0034] The outer casing 1 is fixed, with a disassembly and assembly top bracket 5 bolted to its top and a mounting base 4 bolted to its bottom. Maintenance components are located on both the left and right sides of the outer casing 1, and a replacement movable bracket 6 is bolted to its front. These maintenance components allow for flexible maintenance of the internal transmission gearbox structure without requiring complete disassembly, thus significantly improving maintenance efficiency.

[0035] Specifically, an annular steam nozzle with a diameter of Φ3mm and a spacing of 50mm is installed on the top of the fixed outer casing 1. Superheated steam at 250℃ and a pressure of 1.5MPa is periodically sprayed to remove surface dust.

[0036] The transmission housing 2 is movably installed inside the fixed outer housing 1. The transmission housing 2 consists of two parts: an upper gearbox 10 and a lower gearbox 11. Both sides of the upper gearbox 10 and the lower gearbox 11 are vertically slidably installed inside the fixed outer housing 1. The bottom of the lower gearbox 11 is fixedly connected to the top of the mounting base 4 by bolts. By sliding the upper gearbox 10 and the lower gearbox 11 vertically inside the fixed outer housing 1, the transmission housing 2 can be separated vertically inside the fixed outer housing 1, thereby exposing the internal structure of the transmission housing 2. With the maintenance components installed on both sides of the fixed outer housing 1, the internal transmission structure of the transmission housing 2 can be flexibly inspected and maintained.

[0037] The gearbox has a lubrication inner box 3. A transmission input shaft 8 is rotatably mounted on the right side inside the upper gearbox 10, with its front end passing through the upper gearbox 10 and the fixed outer box 1 and extending to the front of the fixed outer box 1. A transmission shaft 28 is rotatably mounted on the left side inside the upper gearbox 10, and a transmission output shaft 9 is rotatably mounted on the left side inside the lower gearbox 11, with its rear end passing through the lower gearbox 11 and the fixed outer box 1 and extending to the rear of the fixed outer box 1. Lubrication inner boxes 3 are provided on one side of each of the transmission input shaft 8, transmission shaft 28, and transmission output shaft 9. By providing multiple lubrication inner boxes 3 inside the transmission gearbox 2, the transmission structure inside the transmission gearbox 2 can be independently lubricated. This ensures the lubrication effect of the transmission structure inside the transmission gearbox 2 and allows for individual disassembly and repair of damaged lubrication structures, effectively reducing the complexity of maintenance operations on the transmission gearbox.

[0038] Specifically, a lower support frame 29 is slidably provided on the front of the fixed outer casing 1, and the bottom of the lower support frame 29 extends to the bottom of the mounting base 4, and the top of the lower support frame 29 contacts the lower surface of the transmission input shaft 8; an upper support frame 30 is also slidably provided on the back of the fixed outer casing 1, and the top of the upper support frame 30 extends to the top of the disassembly top frame 5, and the bottom of the upper support frame 30 contacts the upper surface of the transmission output shaft 9.

[0039] It should be noted that the lower support frame 29 on the front of the fixed outer casing 1 and the upper support frame 30 on the back can provide temporary support for the transmission input shaft 8 and the transmission output shaft 9 respectively during disassembly, preventing the shaft system from deforming due to its own weight; the sliding adjustment support method can not only adapt to the separation stroke of the upper part 10 and the lower part 11 of the gearbox, but also ensure the positioning accuracy of the shaft system during disassembly and assembly, reduce the alignment error during secondary installation, and improve the operational stability of the equipment after maintenance.

[0040] It should be noted that when disassembling the upper part 10 and the lower part 11 of the gearbox, the upper support frame 30 is slid upward and the lower support frame 29 is slid downward. Then, the lower part 11 of the gearbox is controlled to slide upward inside the fixed outer housing 1, and the upper part 10 of the gearbox is controlled to slide downward inside the fixed outer housing 1. This enables a quick disassembly of the upper part 10 and the lower part 11 of the gearbox, thereby further improving the efficiency of inspection and maintenance of the internal transmission structure of the transmission gearbox.

[0041] Furthermore, the left and right sides of the fixed outer casing 1 are provided with inspection ports 18. The inspection components include movable side plates 7. Rotating shafts 19 are fixedly installed on the upper front and rear sides of the movable side plates 7, and one end of the two rotating shafts 19 is rotatably connected to the upper front and rear sides of the inner wall of the inspection port 18, respectively. The two sides of the front of the fixed outer casing 1 are rotatably provided with crank handles 21, and the rear ends of the two crank handles 21 are fixedly provided with drive shafts 20. The surfaces of the rotating shafts 19 and the drive shafts 20 are fixedly provided with transmission sprockets 22, and the surfaces of the two transmission sprockets 22 are connected by a transmission chain 23.

[0042] Specifically, the transmission chain 23 is a roller chain with a pitch of 12.7mm, the transmission sprocket has 18 teeth, the chain length is determined according to the actual installation distance, and the transmission ratio is 1:1; when installing the sprocket, a laser alignment instrument is used for calibration to ensure that the chain tension deviation is <±0.5mm.

[0043] It should be noted that when performing maintenance on the transmission housing 2, the crank handles 21 on both sides of the front of the fixed outer housing 1 are cranked, which drives the drive shaft 20 to rotate. The drive shaft 20 and the rotating shaft 19 are connected by a transmission sprocket 22 and a transmission chain 23 to drive the transmission, so that the drive shaft 20 and the rotating shaft 19 rotate synchronously. This causes the movable side plate 7 to rotate with the rotating shaft 19, and the bottom of the movable side plate 7 is flipped out from the inside of the inspection port 18. The surface of the transmission housing 2 can be quickly inspected through the inspection ports 18 on both sides.

[0044] It should be noted that the fixed outer casing 1 is securely installed by disassembling and assembling the top frame 5 and the mounting base 4. The maintenance components on its left and right sides form a flexible maintenance channel: when the crank handle 21 is turned, the drive shaft 20 drives the rotating shaft 19 to rotate through the transmission sprocket 22 and the transmission chain 23, so that the movable side plate 7 can be flipped open from the maintenance port 18. The internal structure can be exposed without disassembling the gearbox as a whole, avoiding the cumbersome process of traditional whole disassembly, significantly shortening the maintenance preparation time and improving the timeliness of equipment maintenance.

[0045] Specifically, positioning connecting brackets 12 are fixedly installed on both sides of the top of the gearbox lower part 11 by bolts, and positioning pins 14 are fixedly installed on the front and rear sides of the bottom of the two positioning connecting brackets 12. Positioning holes 15 that cooperate with the positioning pins 14 are provided on both sides of the top of the gearbox upper part 10, and one end of the positioning pin 14 is movably connected to the inside of the positioning hole 15. Several permanent magnets 16 are fixedly installed on both sides of the top of the gearbox upper part 10, and soft magnetic alloy bases are fixedly installed on both sides of the bottom of the gearbox lower part 11. Electromagnetic coils 17 are fixedly installed on the opposite side of the two movable side plates 7, and the two electromagnetic coils 17 are respectively on the same horizontal line as the several permanent magnets 16. Servo electric cylinders 13 are fixedly installed around the top of the disassembly and assembly top frame 5, and the two servo electric cylinders 13 on the left and the two servo electric cylinders 13 on the right are respectively fixedly connected to the top of the positioning connecting brackets 12 on the left and right sides.

[0046] Furthermore, the permanent magnet uses N50H neodymium iron boron, with a remanence of 1.39-1.43T and a maximum magnetic energy product of 374-406 kJ / m². 3 Each positioning connector 12 has four permanent magnets measuring 20mm × 10mm × 5mm installed at its bottom. The soft magnetic alloy base is 5mm thick and made of pure iron. The electromagnetic coil 17 uses 2000 turns of copper wire with a diameter of 0.8mm, a power supply voltage of 24V, and a current density of 4A / mm². 2 It generates a reverse magnetic field strength ≥0.5T and a response time <20ms.

[0047] It should be noted that the transmission housing 2 consists of an upper gearbox 10 and a lower gearbox 11. The two are precisely positioned by positioning pins 14 and positioning holes 15, and their stability is enhanced by the magnetic connection between the permanent magnet 16 and the soft magnetic alloy base. When separating, the electromagnetic coil 17 on the movable side plate 7 is energized to generate a reverse magnetic field to counteract the magnetic attraction. In conjunction with the servo electric cylinder 13 on the disassembly and assembly top frame 5, the positioning connecting frame 12 is driven, which can drive the lower gearbox 11 and the upper gearbox 10 to slide up and down and separate within the fixed outer housing 1. Through this "magnetic pre-fixing + electric separation" design, the connection rigidity during operation is ensured, and the disassembly time of the traditional gearbox is reduced by more than half, which greatly improves the maintenance efficiency of the core transmission structure.

[0048] It should be noted that when connecting the upper gearbox 10 and the lower gearbox 11, the permanent magnets 16 on both sides of the top of the upper gearbox 10 are magnetically connected to the soft magnetic alloy bases on both sides of the bottom of the lower gearbox 11. At the same time, the positioning pins 14 at the bottom of the positioning connecting brackets 12 on both sides are inserted into the positioning holes 15 on both sides of the top of the upper gearbox 10 to ensure the connection stability between the upper gearbox 10 and the lower gearbox 11. When disassembling the upper gearbox 10 and the lower gearbox 11, the electromagnetic coils 17 on one side of the two movable side plates 7 are energized. After energization, a reverse magnetic field is generated to counteract the permanent magnet attraction, realizing rapid separation without mechanical force. With the help of the servo electric cylinder 13 on the top of the disassembly and assembly top frame 5, the positioning connecting brackets 12 on both sides are lifted upward, thereby driving the lower gearbox 11 to slide upward inside the fixed outer box 1, realizing the rapid separation and disassembly between the lower gearbox 11 and the upper gearbox 10.

[0049] Furthermore, a drive gear 24 is fixedly installed on one side of the surface of the transmission input shaft 8, and a first transmission gear 25 and a second transmission gear 26 are fixedly installed on the front and rear sides of the surface of the transmission shaft 28, respectively, and the tooth surfaces of the first transmission gear 25 and the tooth surfaces of the drive gear 24 mesh for transmission; a third transmission gear 27 is also fixedly installed on the front side of the surface of the transmission output shaft 9, and the tooth surfaces of the third transmission gear 27 and the tooth surfaces of the second transmission gear 26 mesh for transmission; the lubrication inner box 3 consists of two lubrication parts, and the lubrication inner box 3 is respectively located above and below the surfaces of the drive gear 24, the first transmission gear 25, the second transmission gear 26 and the third transmission gear 27. The two lubrication parts are connected by magnetic adsorption, and a lubrication nozzle is fixedly installed on one side of the inner wall of the upper lubrication part, and an oil drain pipe is installed at the bottom of the lower lubrication part, with the other end of the oil drain pipe extending to the outside of the transmission middle box 2; an oil injection nozzle is installed on the front of the replacement movable frame 6, and one end of the oil injection nozzle is connected to the inside of several lubrication nozzles inside the lubrication inner box 3 through an oil guide pipe.

[0050] Specifically, the lubrication nozzle is a 45° fan-shaped nozzle with an orifice diameter of Φ1.2mm and a flow rate of 2L / min at a pressure of 3bar, ensuring that the lubricating oil evenly covers the gear meshing surface; the oil guide pipe is a Φ6mm stainless steel pipe with an M10×1 threaded interface, which is sealed to the oil filling nozzle of the replacement movable frame 6; the oil drain pipe is a Φ8mm stainless steel corrugated pipe with a path slope of ≥3°, a support bracket is installed every 500mm, a manual ball valve is installed at the outlet, and the connection is sealed with a metal corrugated pipe, with a pressure resistance of 1.6MPa and a temperature resistance of 350℃.

[0051] It should be noted that by dividing the lubrication inner box 3 into upper and lower lubrication sections, which respectively enclose key meshing components such as the drive gear 24 and transmission gear 25, quick disassembly is achieved through magnetic adsorption. The lubrication nozzle of the upper lubrication section is connected to the oil injection nozzle of the replacement movable frame 6 through an oil guide pipe, and the oil drain pipe of the lower lubrication section can discharge waste oil. This allows the lubrication system of each gear meshing point to operate independently. When a lubrication unit becomes blocked or leaks, the corresponding lubrication inner box 3 can be disassembled separately for maintenance without interrupting the entire lubrication system, thus reducing maintenance complexity and downtime losses.

[0052] Example 2

[0053] Specifically, this embodiment discloses a method for using a detachable steam-powered centrifugal compressor transmission gearbox, as follows:

[0054] Confirm that the fixed outer casing 1 is securely connected to the mounting base 4 by bolts through the disassembly and assembly top frame 5, and there is no looseness; the movable side plate 7 is in the closed state, and the sealing ring in the edge sealing groove is tightly fitted; by slightly rotating the drive shaft 20 with the crank handle 21, check the meshing flexibility of the transmission sprocket 22 and the transmission chain 23 to ensure there is no jamming; slide the lower support frame 29 and the upper support frame 30 to make them contact the surfaces of the transmission input shaft 8 and the transmission output shaft 9 respectively, confirm that the support is stable, and record the initial support position for resetting; check that the positioning pins 14 of the upper gearbox 10 and the lower gearbox 11 are fully inserted into the positioning holes 15, and that the permanent magnet 16 is tightly attracted to the soft magnetic alloy base, which can be verified by measuring the gap between them to be ≤0.1mm; the servo electric cylinder 13 is in the de-energized state, and the piston rod has no abnormal extension or retraction.

[0055] Lubricating oil is injected into the lubrication tank 3 by replacing the oil nozzle of the movable frame 6. The oil outlet is observed until oil flows out steadily, ensuring that the magnetic connection between the upper and lower lubrication parts is tight and there is no leakage. The lubrication nozzle needs to be tested with 3 bar pressure in advance to confirm that the spray range covers the gear meshing surface. The control power of the electromagnetic coil 17 is turned on and confirmed to be in the de-energized state. The steam power source is started to make the transmission input shaft 8 drive the drive gear 24 to rotate. Through the meshing of the transmission gear 1 25, transmission shaft 28, transmission gear 2 26 and transmission gear 3 27, the transmission output shaft 9 is driven to rotate.

[0056] During the initial operation, monitor the gear meshing status through the inspection port 18 observation window. The nozzles of the lubrication inner tank 3 should spray lubricating oil evenly, and the drain pipe should continuously discharge a small amount of waste oil. Monitor the pressure sensor data of the servo electric cylinder 13 in real time. The vibration amplitude of the transmission input shaft 8 and output shaft 9 should be ≤0.3mm / s. The oil temperature should be controlled between 40-60℃. If it exceeds 65℃, add cooling lubricating oil through the grease nipple. Replenish the lubricating oil weekly by replacing the grease nipple of the movable frame 6 according to the equipment manual. Disassemble the lubrication inner tank 3 monthly: use a magnetic wrench to separate the upper and lower lubrication parts, clean the internal sludge, check the nozzle patency, and replace worn magnetic adsorption parts. The drain pipe should be opened monthly to drain waste oil by opening the manual ball valve to ensure that there is no blockage in the pipe.

[0057] Every quarter, the movable side plate 7 is opened by crank 21, and the drive shaft 20 drives the rotating shaft 19 to rotate at an angle ≥90°. The wear of the gear teeth is checked through the inspection port 18. If a deep inspection is required, the gears are disassembled according to the following steps: slide the upper support frame 30 to the top and the lower support frame 29 to the bottom to disengage from the shaft support; energize the electromagnetic coil 17 to generate a reverse magnetic field to counteract the permanent magnet attraction; start the servo electric cylinder 13, which drives the lower part of the gearbox 11 to slide upward through the positioning connecting frame 12 until the separation gap between it and the upper part of the gearbox 10 is ≥100mm, exposing the drive shaft 28 and gear assembly.

[0058] When replacing gears or bearings, the upper part 10 of the gearbox needs to be hoisted by disassembling and assembling the top frame 5, and the positioning pin 14 and the positioning hole 15 H7 / h6 are used to calibrate and reset. After installation, the power is turned off and the electromagnetic coil 17 is shut off, and it is confirmed that the permanent magnet 16 is firmly attracted to the soft magnetic alloy base.

[0059] First, turn off the steam power source. After the transmission input shaft 8 has completely stopped rotating, disconnect the power supply to the equipment. Slide the lower support frame 29 and the upper support frame 30 back to their original positions, close the movable side plate 7, and lock the transmission chain 23 through the crank handle 21. If the overload pressure of the servo electric cylinder 13 is greater than 120% of the rated value, the system will automatically lock. Check whether the positioning connection frame 12 is stuck. After troubleshooting, reset the system through the PLC. When lubrication is interrupted, the PEEK-based self-lubricating bushing can maintain emergency operation for 30 minutes. The machine must be stopped immediately, and the corresponding lubrication inner box 3 must be disassembled to inspect the nozzle or oil guide pipe.

[0060] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detachable transmission gearbox for a steam-powered centrifugal compressor, characterized in that, include: The fixed outer box (1) has a disassembly top frame (5) fixed to the top of the fixed outer box (1) by bolts, and an installation base (4) fixed to the bottom of the fixed outer box (1) by bolts; maintenance components are provided on both the left and right sides of the fixed outer box (1), and a replacement movable frame (6) is also fixed to the front of the fixed outer box (1) by bolts. The transmission box (2) is movably installed inside the fixed outer box (1). The transmission box (2) is composed of two parts: the upper part (10) of the gearbox and the lower part (11) of the gearbox. Both sides of the upper part (10) and the lower part (11) of the gearbox are slidably installed inside the fixed outer box (1). The bottom of the lower part (11) of the gearbox is fixedly connected to the top of the mounting base (4) by bolts. The gearbox has a lubrication inner box (3). A transmission input shaft (8) is rotatably provided on the right side inside the upper part (10) of the gearbox. The front end of the transmission input shaft (8) passes through the upper part (10) of the gearbox and the fixed outer box (1) and extends to the front side of the fixed outer box (1). A transmission shaft (28) is rotatably provided on the left side inside the upper part (10) of the gearbox. A transmission output shaft (9) is rotatably provided on the left side inside the lower part (11) of the gearbox. The rear end of the transmission output shaft (9) passes through the lower part (11) of the gearbox and the fixed outer box (1) and extends to the rear side of the fixed outer box (1). A lubrication inner box (3) is provided on one side of the transmission input shaft (8), the transmission shaft (28) and the transmission output shaft (9).

2. The detachable steam-powered centrifugal compressor transmission gearbox according to claim 1, characterized in that, A lower support frame (29) is slidably provided on the front of the fixed outer casing (1), and the bottom of the lower support frame (29) extends to the bottom of the mounting base (4). The top of the lower support frame (29) contacts the lower surface of the transmission input shaft (8). An upper support frame (30) is also slidably provided on the back of the fixed outer casing (1), and the top of the upper support frame (30) extends to the top of the disassembly top frame (5). The bottom of the upper support frame (30) contacts the upper surface of the transmission output shaft (9).

3. The detachable steam-powered centrifugal compressor transmission gearbox according to claim 1, characterized in that, The fixed outer casing (1) is provided with inspection ports (18) on both the left and right sides. The inspection component includes a movable side plate (7). A rotating shaft (19) is fixedly provided on the upper front and rear sides of the movable side plate (7), and one end of the two rotating shafts (19) is rotatably connected to the upper front and rear sides of the inner wall of the inspection port (18).

4. The detachable steam-powered centrifugal compressor transmission gearbox according to claim 3, characterized in that, Both sides of the front of the fixed outer box (1) are provided with rotatable handles (21), and the rear ends of the two handles (21) are fixedly provided with drive shafts (20). The surfaces of the rotating shaft (19) and the drive shaft (20) are fixedly provided with transmission sprockets (22), and the surfaces of the two transmission sprockets (22) are connected by a transmission chain (23).

5. The detachable steam-powered centrifugal compressor transmission gearbox according to claim 1, characterized in that, The gearbox lower part (11) has two positioning connecting brackets (12) fixedly installed on both sides of the top by bolts, and positioning pins (14) are fixedly installed on the front and rear sides of the bottom of the two positioning connecting brackets (12). The gearbox upper part (10) has two positioning holes (15) on both sides of the top that cooperate with the positioning pins (14), and one end of the positioning pin (14) is movably connected to the inside of the positioning hole (15).

6. The detachable steam-powered centrifugal compressor transmission gearbox according to claim 3, characterized in that, Several permanent magnets (16) are fixedly installed on both sides of the top of the upper part (10) of the gearbox, and soft magnetic alloy bases are fixedly installed on both sides of the bottom of the lower part (11) of the gearbox. Electromagnetic coils (17) are fixedly installed on the opposite side of the two movable side plates (7), and the two electromagnetic coils (17) are respectively on the same horizontal line as several permanent magnets (16). Servo electric cylinders (13) are fixedly installed around the top of the disassembly and assembly top frame (5), and the two servo electric cylinders (13) on the left and the two servo electric cylinders (13) on the right are respectively fixedly connected to the top of the positioning connection frame (12) on the left and right sides.

7. The detachable steam-powered centrifugal compressor transmission gearbox according to claim 1, characterized in that, A drive gear (24) is fixedly provided on one side of the surface of the transmission input shaft (8). A first transmission gear (25) and a second transmission gear (26) are fixedly provided on the front and rear sides of the surface of the transmission shaft (28), respectively. The tooth surface of the first transmission gear (25) meshes with the tooth surface of the drive gear (24). A third transmission gear (27) is also fixedly provided on the front side of the surface of the transmission output shaft (9). The tooth surface of the third transmission gear (27) meshes with the tooth surface of the second transmission gear (26).

8. The detachable steam-powered centrifugal compressor transmission gearbox according to claim 7, characterized in that, The lubrication inner box (3) consists of two lubrication parts, and the lubrication inner box (3) is respectively located above and below the surfaces of the drive gear (24), transmission gear one (25), transmission gear two (26) and transmission gear three (27). The two lubrication parts are connected by magnetic adsorption. A lubrication nozzle is fixedly installed on one side of the inner wall of the upper lubrication part, and an oil drain pipe is installed at the bottom of the lower lubrication part. The other end of the oil drain pipe extends to the outside of the transmission inner box (2).

9. A detachable steam-powered centrifugal compressor transmission gearbox according to claim 8, characterized in that, The front of the replacement movable frame (6) is provided with an oil injection nozzle, and one end of the oil injection nozzle is connected to the inside of several lubrication nozzles in the lubrication inner box (3) through an oil guide pipe.

10. A detachable steam-powered centrifugal compressor transmission gearbox according to claim 9, characterized in that, The lubrication nozzle is a 45° fan-shaped nozzle with an orifice diameter of Φ1.2mm; the oil drain pipe is a Φ8mm stainless steel corrugated pipe with a path slope of ≥3°.

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