CN113187566A - Gear box barring device - Google Patents

Gear box barring device Download PDF

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Publication number
CN113187566A
CN113187566A CN202110512244.8A CN202110512244A CN113187566A CN 113187566 A CN113187566 A CN 113187566A CN 202110512244 A CN202110512244 A CN 202110512244A CN 113187566 A CN113187566 A CN 113187566A
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CN
China
Prior art keywords
gear
barring
shaft
clutch
hydraulic motor
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Granted
Application number
CN202110512244.8A
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Chinese (zh)
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CN113187566B (en
Inventor
战庆欣
闫泽
陈克鑫
曲盛楠
王学志
戴维泽
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703th Research Institute of CSIC
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703th Research Institute of CSIC
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Priority to CN202110512244.8A priority Critical patent/CN113187566B/en
Publication of CN113187566A publication Critical patent/CN113187566A/en
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Publication of CN113187566B publication Critical patent/CN113187566B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/34—Turning or inching gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02026—Connection of auxiliaries with a gear case; Mounting of auxiliaries on the gearbox
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02069—Gearboxes for particular applications for industrial applications

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

The invention provides a gear box turning gear, comprising: the automatic transmission mechanism comprises a shell, a flange, a switching flange, a hydraulic motor, a switching shaft, a meshing gear, a synchronous automatic clutch, a hand-operated disc axle, a hand-operated disc gear, a disc turning cover shell, an adapter plate, a clutch position measuring ring, a proximity switch, an oil supply assembly, a machine-side control cabinet and the like. The barring gear is installed at the shaft end of a gear box gear shaft, and a shell of the barring gear is connected to the wall of the gear box. The shell is axially connected with the flange, the adapter flange and the hydraulic motor in sequence. The output end of the hydraulic motor is connected with a transfer shaft, and the transfer shaft penetrates into an inner hole of the meshing gear. The output end of the hydraulic motor, the transfer shaft, the meshing gear, the synchronous automatic clutch, the adapter plate and the gear shaft of the gear box are sequentially connected, and the axes are all on the same straight line. The gear teeth of the meshing gear are meshed with the gear teeth of the manual turning gear. And a clutch position measuring ring is arranged on the outer side of the sliding part of the clutch. The barring gear can be used for hydraulic control barring and manual barring of rotating equipment of an industrial unit.

Description

Gear box barring device
Technical Field
The invention relates to a gear box turning gear, in particular to a turning gear with automatic engagement and disengagement functions, which is arranged at the end of a gear shaft of a gear box.
Background
The jigger device is a device which enables the main shaft system of the rotors of the steam turbine, the gas turbine, the large-scale blower, the compressor, the flywheel of the compressor, the rotor of the coal mill and the circulating water pump to rotate before the starting of rotating equipment such as the steam turbine, the gas turbine, the large-scale blower, the compressor, the coal mill and the circulating water pump, after the shutdown or during the maintenance. The turning machine can not only turn the rotor before the unit is started, but also automatically disengage when the rotating speed of the rotor is higher than that of the turning machine and stop rotating.
The existing barring device is complex in structure, and the common barring device mainly comprises a motor, a speed reducer, a barring gear and the like. The motor output shaft is decelerated through the speed reducer, so that the turning gear at the output end of the speed reducer runs at a low speed, the turning gear drives the turning gear wheel on the rotor shaft to decelerate again, and meanwhile, the turning function is realized. The multi-axis system is formed by the barring and the unit in space due to the multi-stage speed reduction, and the occupied space is large. For example, in the jigger with the chain wheel, namely the worm and gear, the motor drives the rotor to rotate after being decelerated through the chain wheel, the chain, the worm and gear and the gear transmission, so that the structure is complex, the occupied space is large, and the efficiency is low. Because the rotors of steam turbines, gas turbines and generators in barring application occasions such as a generating set of a thermal power plant are huge, and the total weight of the rotors can reach dozens of tons, even far more than one hundred tons, the power of the barring device for the generating set is very large, so that the selected motor is large, and the whole barring is heavy.
Some common barring operations are cumbersome. If the manual barring gear for the wind generating set needs to be pried at high altitude through a lever to realize barring; for example, when the electric barring gear with the spiral shaft is put into use, the safety pin needs to be pulled out, the handle is pushed to realize the meshing of the traveling gear on the spiral shaft and the barring gear, meanwhile, a lubricating oil accelerator is also opened to supply oil to the barring gear, and a motor travel switch is closed; for example, in the case of an electric barring gear with a swing gear, the locking pin needs to be pulled out when the barring is put into use, and the hand wheel is rotated to enable the swing wheel to be meshed with the barring gear; for example, in an electric barring gear with a chain wheel, namely a worm gear, when the barring gear is put in, an operating rod needs to be moved to an 'putting-in' position to enable an engagement pinion to be engaged with a barring gearwheel. These jiggers are relatively less automated.
Some common jiggers need on-the-spot installation and debugging, and the installation and debugging process involves operations such as frame percentage table detection adjustment, outfit pin, and on-the-spot installation is also inconvenient. Meanwhile, in order to facilitate the installation of the generator and the gas turbine on site, a shaft system needs to move and adjust when the unit is installed, so that some jiggers can be installed only after the unit is installed on site.
Disclosure of Invention
The invention aims to overcome the defects that the existing barring device for the gear box is complex in structure, heavy in weight, large in occupied space, complex in operation, required to be installed and debugged on site and inconvenient to install, and provides the barring device for the gear box, which is simple and reliable in structure, light in weight, small in occupied space, convenient to operate and control and free of site alignment.
The purpose of the invention is realized as follows: the turning gear is arranged at the shaft end of a gear shaft (1) of the gear box, a shell (4) of the turning gear is connected to the wall (3) of the gear box, the shell (4) is axially connected with a flange (14), a transfer flange (25) and a hydraulic motor (8) in sequence, the output end of the hydraulic motor (8) is connected with a transfer shaft (26), and the transfer shaft (26) penetrates into an inner hole of a meshing gear (6); the meshing gear (6) is supported by two rolling bearings (7) and is connected between the transfer shaft (26) and the input end of the synchronous automatic clutch (2), and the gear teeth of the meshing gear are meshed with the manual turning gear (11); the hand-operated disc axle (12) is supported by two ball bearings (10), and the end part of the hand-operated disc axle is provided with a barring cover (13) which is sealed in the shell (4); an adapter plate (9) of the barring gear is accurately positioned at the shaft end of a gear shaft (1) of the gear box, and the other side of the adapter plate (9) is connected with the output end of the synchronous automatic clutch (2); the output end of the hydraulic motor (8), the transfer shaft (26), the meshing gear (6), the synchronous automatic clutch (2), the adapter plate (9) and the axle center of the gear box gear shaft (1) are all on the same straight line.
The invention also includes such structural features:
1. the clutch in the barring gear adopts a synchronous automatic clutch (2), the input end of the synchronous automatic clutch is arranged on the side of a hydraulic motor (8) and connected with a meshing gear (6), the output end of the synchronous automatic clutch is arranged on the side of a gear shaft (1) of a gear box and connected with an adapter plate (9), and a clutch position measuring ring is arranged on the outer surface of a sliding piece of the synchronous automatic clutch; when the rotating speed of the hydraulic motor (8) is higher than that of a gear box gear shaft (1) connected with the output end of the synchronous automatic clutch (2), the barring is automatically put into operation; when the rotating speed of the hydraulic motor (8) is lower than the rotating speed of the gear box gear shaft (1) connected with the output end of the synchronous automatic clutch (2), the turning gear is automatically disengaged.
2. The oil supply assembly is arranged on a shell (4) of the jigger and comprises an oil supply valve block (17), a short pipe (20) and a bent pipe (21), wherein the short pipe (20) extends into the shell (4), and the bent pipe (21) is inserted into a flange; the oil supply assembly supplies oil to the synchronous automatic clutch driving teeth (15), the sliding teeth (19), the ratchet wheel (18), the pawl (16), the rolling bearing and the ball bearing in the gearbox barring gear; the lubricating oil is divided into two paths by the oil supply valve block (17), and one path of lubricating oil is sprayed to the direction of the ratchet wheel (18) by the short pipe (20).
3. The lowest point of the short pipe (20) is higher than the highest point of the clutch output gear ring (29), the vertical distance d between the short pipe and the clutch output gear ring is more than 0, the end part of the short pipe (20) is provided with a throttling hole, the axial direction of the throttling hole faces to the ratchet wheel (18), and the lubricating oil is mainly used for lubricating the ratchet wheel (18) and the pawl (16); the other path of lubricating oil is supplied into the flange through a bent pipe (21), and the lubricating oil is used for lubricating the meshing gear (6), two rolling bearings (7) arranged at the meshing gear (6), a manual turning gear (11), two ball bearings (10) arranged at the manual turning gear (11), a clutch driving tooth (15) and a sliding tooth (19); the lubricating oil comes from the main oil inlet pipe of the gear box.
Compared with the prior art, the invention has the beneficial effects that: the jigger is coaxially arranged with a gear shaft, is driven by a hydraulic motor, and adopts a synchronous automatic clutch as a transmission element. The barring gear has the advantages of simple and reliable structure, light weight, small occupied space, convenience in operation and control, hydraulic and manual barring functions, no need of on-site alignment, no influence of two-way movement of a shaft system during unit installation, adaptation to multiple working conditions and good interchangeability.
Drawings
Fig. 1 is a schematic structural view of the barring gear.
Fig. 2 is a structural schematic diagram of the oil supply unit.
Fig. 3 is a schematic diagram of the state of the barring gear at the theoretical installation position of the unit.
Fig. 4 is a state diagram of the barring gear for the forward adjustment limit position of the unit installation.
Fig. 5 is a state diagram of the barring gear for the unit installation reverse adjustment limit position.
Fig. 6 is a schematic diagram of the state of the optimized barring gear in the theoretical installation position of the unit.
Fig. 7 is a schematic view of the state of the optimized barring gear in the forward adjustment limit position of the unit installation.
Fig. 8 is a schematic view of the position relationship of the measurement ring and the proximity switch in the disengaged state of the barring gear.
Fig. 9 is a schematic view of the position relationship between the measuring ring and the proximity switch for the engaging state of the barring gear.
Fig. 10 is a schematic view of the turning gear application without the adapter shaft and adapter flange.
Fig. 11 is a schematic view of the turning gear application with the adapter shaft and the adapter flange.
Fig. 12 is a schematic view of the turning gear application with a large transfer shaft and a large transfer flange.
In the above drawings: 1. a gear box gear shaft; 2. a synchronous automatic clutch; 3. the wall of the gearbox box; 4. a housing; 5. an oil supply assembly; 6. a meshing gear; 7. a rolling bearing; 8. a hydraulic motor; 9. an adapter plate; 10. a ball bearing; 11. a manual turning gear; 12. a hand-disc axle; 13. turning over a housing; 14. a flange; 15. a drive tooth; 16. a pawl; 17. an oil supply valve block; 18. a ratchet wheel; 19. a sliding tooth; 20. a short pipe; 21. bending the pipe; 22. a clutch position measurement ring; 23. a disengaged position proximity switch; 24. an engaged position proximity switch; 25. a transfer flange; 26. a transfer shaft; 27. a large transfer shaft; 28. a large adapter flange; 29. an output ring gear; 30. a sliding member; 31. reaming a hole bolt; 32. an exposed shaft extension type hydraulic motor; 33. larger models of hydraulic motors.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the embodiment shown in fig. 1, a gearbox barring device comprises: the automatic transmission comprises a shell (4), a flange (14), a transfer flange (25), a hydraulic motor (8), a transfer shaft (26), a meshing gear (6), a synchronous automatic clutch (2), a manual turning axle (12), a manual turning gear (11), a turning cover (13), an adapter plate (9), an oil supply assembly (5) and the like.
The barring gear is installed at the shaft end of a gear box gear shaft (1), and a shell (4) of the barring gear is connected to a wall (3) of the gear box and is accurate in size matching. The shell (4) is axially connected with the flange (14), the adapter flange (25) and the hydraulic motor (8) in sequence. The output end of the hydraulic motor (8) is connected with a transfer shaft (26), and the transfer shaft (26) penetrates into an inner hole of the meshing gear (6). The meshing gear (6) is supported by two rolling bearings (7) and is connected between the transfer shaft (26) and the input end of the synchronous automatic clutch (2), and the gear teeth of the meshing gear are meshed with the manual turning gear (11). The hand-operated disc axle (12) is supported by two ball bearings (10), the ends of which are provided with a barring cover (13), which is enclosed in the housing (4). An adapter plate (9) of the barring gear is accurately positioned at the shaft end of a gear box gear shaft (1), and the other side of the adapter plate (9) is connected with the output end of the synchronous automatic clutch (2). The output end of the hydraulic motor (8), the transfer shaft (26), the meshing gear (6), the synchronous automatic clutch (2), the adapter plate (9) and the axle center of the gear box gear shaft (1) are all on the same straight line.
The clutch inside the barring gear adopts a synchronous automatic clutch (2). The clutch is a full-automatic one-way overrunning clutch which transmits power through gear teeth. The input end of the synchronous automatic clutch is arranged on the side of the hydraulic motor (8) and is connected with the meshing gear (6), and the output end of the synchronous automatic clutch is arranged on the side of the gear shaft (1) of the gear box and is connected with the adapter plate (9). The outer surface of the sliding part of the synchronous automatic clutch is provided with a clutch position measuring ring. When the rotating speed of the hydraulic motor (8) is higher than that of a gear box gear shaft (1) connected with the output end of the synchronous automatic clutch (2), the barring is automatically put into operation; when the rotating speed of the hydraulic motor (8) is lower than the rotating speed of the gear box gear shaft (1) connected with the output end of the synchronous automatic clutch (2), the turning gear is automatically disengaged. Because the synchronous automatic clutch is a one-way overrunning clutch, one barring gear only has one working steering direction. The turning gear is replaced by a synchronous automatic clutch with opposite working turning directions, and the working turning directions of the synchronous automatic clutch are also changed oppositely.
In fig. 2, the oil supply unit is mounted on the housing (4) of the barring gear, and mainly comprises an oil supply valve block (17), a short pipe (20) and a bent pipe (21). The short pipe (20) extends into the housing (4) and the bent pipe (21) is inserted into the flange. The oil supply assembly is used for supplying oil to the driving teeth (15), the sliding teeth (19), the ratchet wheel (18), the pawl (16), the rolling bearing and the ball bearing of the synchronous automatic clutch in the gearbox barring gear. The lubricating oil is divided into two paths by the oil supply valve block (17), and one path of lubricating oil is sprayed to the direction of the ratchet wheel (18) by the short pipe (20). In the embodiment, the lowest point of the short pipe (20) is higher than the highest point of the clutch output gear ring (29), and the vertical distance d between the short pipe and the clutch output gear ring is larger than 0. The end of the short pipe (20) is provided with a throttling hole, the throttling hole faces to the ratchet wheel (18) in the axial direction, and the lubricating oil is mainly used for lubricating the ratchet wheel (18) and the pawl (16); the other path of lubricating oil is supplied to the inside of the flange through a bent pipe (21), and the lubricating oil is used for lubricating the meshing gear (6), two rolling bearings (7) arranged at the meshing gear (6), the manual turning gear (11), two ball bearings (10) arranged at the manual turning gear (11), the clutch driving teeth (15) and the sliding teeth (19). The lubricating oil comes from the main oil inlet pipe of the gear box.
The barring gear adopts a hydraulic motor as a driving element. The lowest continuous rotating speed of the hydraulic motor is generally not more than 1r/min, and the highest continuous rotating speed is generally not less than 175 r/min. And the general barring output speed range is 2 ~ 105r/min, so this barring hydraulic motor need not pass through the speed reduction, only needs select the hydraulic motor of suitable model according to the load requirement, and the direct mount can reach the rotational speed requirement at gear box gear shaft end, and occupation space is little. The hydraulic motor has the advantages of small volume, light weight, low noise and the like, so that the barring gear has the characteristics of small occupied space and light weight. The pressure oil used by the hydraulic motor of the barring gear is from the oil station for the oil of the top shaft of the gear box, and an independent oil station is not needed, so that the field space is not wasted. The oil drainage of the hydraulic motor is drained to the interior of the barring gear through an oil drainage pipe inserted into the shell.
The manual barring function of the barring gear can realize barring without starting the hydraulic motor. The function can be used for aligning the rotor of the steam turbine, centering the gear box and installing the gear box, or used for testing the engaging and disengaging function of the jigger one by one during the jigger delivery test, or jigger under the condition that a hydraulic motor fails and the like. When the hand-operated barring is used for barring, the manual barring housing is detached, and the shaft end of the hand-operated barring shaft is rotated by a wrench. If the rotational inertia of the rotor is too large, the manual turning is carried out after the rotor jacking shaft oil is started. The axle end of the hand-operated turning gear is of a hexagonal structure, so that the hand-operated turning gear can be operated without using a special tool, and the operation is convenient. After the manual barring is finished, the barring housing is installed again, and the barring housing is used for preventing the manual barring axle rotating during the hydraulic control operation of the barring from hurting people.
Because the barring device is connected to the wall of the gearbox for use, the barring device is integrally sent to a use site after being tested together with the gearbox. Because the shell of the barring is matched with the wall of the gearbox box in accurate size, the barring device does not need to be aligned on site before being used on site.
When devices such as a generator, a gas turbine and the like are installed on the site of equipment use, a gear shaft in a gear box needs to axially move in the positive and negative directions. The barring gear has the advantages that the gear can axially move towards the positive direction and the negative direction without interference under the condition that certain conditions are met, and the barring gear does not need to be detached in the axial adjustment process of the gear shaft mounted on the unit.
In the embodiment shown in fig. 3-5, the gear of the gear box moves to the direction of the turning gear to be a positive direction, and the axial adjustment range of the gear shaft required by the unit installation is (- Δ 1mm, + Δ 2 mm). Fig. 3 shows the theoretical installation position. The minimum distance between the shell (4) and the axial projection plane of the shell on the gear shaft (1) of the gear box is d1, the minimum distance between the shell (4) and the axial projection plane of the shell on the adapter plate (9) is d2, the minimum distance between the driving teeth on the clutch output gear ring (29) and the ratchet wheel on the clutch sliding piece (30) is d3, and the vertical distance between the lowest point of the short pipe (20) on the oil supply assembly and the highest point of the clutch output gear ring (29) is d. Before axial adjustment, the synchronous automatic clutch is adjusted to an engaged state by manual turning so as to be convenient to operate. As shown in figure 4, in the full stroke of the forward adjustment, when d 1-delta 2 is larger than 0, the gear box gear shaft (1) and the barring outer shell (4) can not interfere, when d 2-delta 2 is larger than 0, the adapter plate (9) and the barring outer shell (4) can not interfere, when d 3-delta 2 is larger than 0, the teeth on the clutch output gear ring (29) and the ratchet teeth on the clutch sliding piece (30) can not interfere, and because d is larger than 0, the output gear ring (29) and the short pipe (20) on the oil supply assembly can not interfere when the gear box gear shaft (1) moves axially. Satisfy above four conditions, the gear need not dismantled to the positive direction removal barring during unit installation. In conclusion, since the barring d is larger than 0, the maximum forward movement amount of the gear shaft which is acceptable under the condition that the barring device is not disassembled is min { d1, d2 and d3 }. As shown in FIG. 5, since d1+ Δ 1 > 0, d2+ Δ 1 > 0, d3+ Δ 1 > 0, and d > 0, there is no interference everywhere during the full stroke of the reverse adjustment. Therefore, during the installation process of the field unit, the allowable movement range of the shafting is (— ∞, min { d1, d2, d3 }).
In the embodiment shown in fig. 6-7, the barring gear is likely to accommodate a greater amount of axle mounting adjustment with reasonable modifications. The improvement mode is as follows: reducing the length of the shaft end of the gear shaft (1) to increase the minimum distance between the shell (4) and the axial projection plane of the gear shaft (1) of the gear box from the original D1 to D1; the thickness of the adapter plate (9) is reduced, so that the minimum distance between the shell (4) and the axial projection plane of the adapter plate (9) is increased from the original D2 to D2; d3 is increased without affecting the function of the clutch in use. Since d3 is limited by various aspects such as clutch function requirements, field assembly, etc., the increasable range may be small, and the size of the clutch d3 is not changed in the present embodiment. D1 is more than or equal to D3, D2 is more than or equal to D3, so min { D1, D2, D3} -, D3, and the forward allowable adjustment amount of the gear shaft is D3. The larger the value of the synchronous automatic clutch d3 selected by the turning gear is, the larger the positive acceptable adjustment amount is. Therefore, the axis system allowable moving range of the embodiment is (— infinity, d 3). Under the general condition that d3 is larger than delta 2, the four conditions that the barring does not need to be disassembled when the unit installation gear moves towards the positive direction can be met. Therefore, the shafting bidirectional moving barring device does not need to be detached when the unit is installed under the condition that the unit meets d3 & gt delta 2.
In the embodiment shown in fig. 8-9, the synchronized automatic clutch slide (30) is provided with a clutch position measuring ring (22), and the clutch position measuring ring (22) is provided with a plurality of holes. In the figure 9, the clutch is in the joint position, the synchronous automatic clutch sliding piece (30) moves towards the input side of the clutch, and the heads of the reamed hole bolts (31) can penetrate into holes of the clutch position measuring ring (22), so that the axial structure is compact. An engaging position proximity switch (24) and a disengaging position proximity switch (23) can be arranged on the barring outer shell (4), and particularly, the barring device can only be provided with the disengaging position proximity switch (23) when in use. When the synchronous automatic clutch is in an engagement state, the outer surface of the clutch position measuring ring is over against an engagement position approach switch (24), the engagement position approach switch (24) can send an electrical instruction, a machine-side control cabinet is disconnected with a display lamp and is lighted, and the engagement of the clutch is displayed in real time; when the synchronous automatic clutch is in a disengagement state, the outer surface of the clutch position measuring ring is opposite to a disengagement position approach switch (23), the disengagement position approach switch (23) can send an electrical instruction, a disengagement display lamp on the machine side is lightened, and the disengagement of the clutch is displayed in real time. The crew member control personnel can judge the barring state through the display lamp, rationally command the unit operation. When the barring breaks down, the control personnel can find the problem in time, avoid the incident, prevent to cause more serious economic loss.
In the embodiment shown in fig. 10-12, the barring gear has the capability of adapting to multi-working-condition use. For different output rotating speed requirements, turning can be realized by adjusting the flow of working oil of the hydraulic motor and controlling the rotating speed of the hydraulic motor to a required rated rotating speed value; for different starting torque and rated torque requirements, the barring gear can be realized by replacing a hydraulic motor with a hydraulic motor of a proper type without changing other structures. If the required rated torque is small, the hydraulic motor with small displacement, small unit torque or small size is selected, and if the required rated torque is large, the hydraulic motor with large displacement, large unit torque and proper size needs to be replaced. If the size of the required hydraulic motor interface changes, the device can realize the energy transmission and connection of the hydraulic motor by replacing the adapter shaft and the adapter flange with different sizes. In one embodiment of the invention, as shown in fig. 10, the turning gear employs a hydraulic motor (32) with an externally exposed shaft extension type such as a cylindrical flat key, an involute external spline, a rectangular external spline, etc., and the extended shaft can be fitted with an inner hole of the meshing gear (6). In this condition, the barring gear can be used without the adapter shaft or adapter flange. The turning machine without the adapter shaft and the adapter flange has complete turning functions. When the field working condition is clear and the hydraulic motor type selection is determined, the structure of the embodiment is simpler, the weight is lighter, the occupied space is smaller, and the hydraulic motor type selection is an optimal barring structure. If the field starting torque cannot be accurately estimated, the capacity of the initially selected hydraulic motor is insufficient, and the hydraulic motor with a larger interface size needs to be replaced, the turning type with the transfer shaft and the transfer flange can be replaced. As shown in fig. 11, in this embodiment, without changing other structures, the turning gear adds a transfer shaft (25) between the hydraulic motor (8) and the meshing gear (6), adds a transfer flange (26) between the hydraulic motor (8) and the flange (14), and connects a larger type of hydraulic motor (8), so as to realize a larger starting torque requirement. Wherein, the interface of the hydraulic motor (8) with larger model is in the form of a rectangular internal spline or an involute internal spline interface. The switching shaft (25) is inserted into the inner hole of the hydraulic motor (8), and the structure and the arrangement are compact. Fig. 12 shows the use of a large transfer shaft (27) and large transfer flange (28) for a larger interface to connect the barring gear to a larger size hydraulic motor (33) to accommodate the larger torque requirements. Because this barring adapts to different operating modes, it is short to adjust the required time of structure according to different operating modes, and the mode is simple and convenient. When the structure is adjusted, the transformation can be completed only by connecting the matched adapter shaft and adapter flange which are designed according to the size of the interface, a set of new barring gear does not need to be designed and processed, and the time cost, the economic cost and the like are saved. Therefore, the barring gear is suitable for use sites where starting torque is difficult to predict, and adverse phenomena of excessive use pressure oil flow, space waste and the like caused by mismatching of selected hydraulic motors due to excessive allowance left by conservative design can be avoided. The barring gear is also suitable for being refitted in a short time on site when the design input index is small or the design input is changed. This demonstrates the high degree of interchangeability of the present barring gear.
To sum up, the present invention relates to a gear box barring device, comprising: the automatic transmission mechanism comprises a shell, a flange, a switching flange, a hydraulic motor, a switching shaft, a meshing gear, a synchronous automatic clutch, a hand-operated disc axle, a hand-operated disc gear, a disc turning cover shell, an adapter plate, a clutch position measuring ring, a proximity switch, an oil supply assembly, a machine-side control cabinet and the like. The barring gear is installed at the shaft end of a gear box gear shaft, and a shell of the barring gear is connected to the wall of the gear box. The shell is axially connected with the flange, the adapter flange and the hydraulic motor in sequence. The output end of the hydraulic motor is connected with a transfer shaft, and the transfer shaft penetrates into an inner hole of the meshing gear. The output end of the hydraulic motor, the transfer shaft, the meshing gear, the synchronous automatic clutch, the adapter plate and the gear shaft of the gear box are sequentially connected, and the axes are all on the same straight line. The gear teeth of the meshing gear are meshed with the gear teeth of the manual turning gear. And a clutch position measuring ring is arranged on the outer side of the sliding part of the clutch. The barring gear can be used for hydraulic control barring and manual barring of rotating equipment of an industrial unit.

Claims (4)

1. The utility model provides a gear box barring gear which characterized in that: the turning gear is arranged at the shaft end of a gear shaft (1) of the gear box, a shell (4) of the turning gear is connected to the wall (3) of the gear box, the shell (4) is axially connected with a flange (14), a transfer flange (25) and a hydraulic motor (8) in sequence, the output end of the hydraulic motor (8) is connected with a transfer shaft (26), and the transfer shaft (26) penetrates into an inner hole of a meshing gear (6); the meshing gear (6) is supported by two rolling bearings (7) and is connected between the transfer shaft (26) and the input end of the synchronous automatic clutch (2), and the gear teeth of the meshing gear are meshed with the manual turning gear (11); the hand-operated disc axle (12) is supported by two ball bearings (10), and the end part of the hand-operated disc axle is provided with a barring cover (13) which is sealed in the shell (4); an adapter plate (9) of the barring gear is accurately positioned at the shaft end of a gear shaft (1) of the gear box, and the other side of the adapter plate (9) is connected with the output end of the synchronous automatic clutch (2); the output end of the hydraulic motor (8), the transfer shaft (26), the meshing gear (6), the synchronous automatic clutch (2), the adapter plate (9) and the axle center of the gear box gear shaft (1) are all on the same straight line.
2. A gearbox barring gear as claimed in claim 1 wherein: the clutch in the barring gear adopts a synchronous automatic clutch (2), the input end of the synchronous automatic clutch is arranged on the side of a hydraulic motor (8) and connected with a meshing gear (6), the output end of the synchronous automatic clutch is arranged on the side of a gear shaft (1) of a gear box and connected with an adapter plate (9), and a clutch position measuring ring is arranged on the outer surface of a sliding piece of the synchronous automatic clutch; when the rotating speed of the hydraulic motor (8) is higher than that of a gear box gear shaft (1) connected with the output end of the synchronous automatic clutch (2), the barring is automatically put into operation; when the rotating speed of the hydraulic motor (8) is lower than the rotating speed of the gear box gear shaft (1) connected with the output end of the synchronous automatic clutch (2), the turning gear is automatically disengaged.
3. A gearbox barring gear according to claim 1 or claim 2 wherein: the oil supply assembly is arranged on a shell (4) of the jigger and comprises an oil supply valve block (17), a short pipe (20) and a bent pipe (21), wherein the short pipe (20) extends into the shell (4), and the bent pipe (21) is inserted into a flange; the oil supply assembly supplies oil to the synchronous automatic clutch driving teeth (15), the sliding teeth (19), the ratchet wheel (18), the pawl (16), the rolling bearing and the ball bearing in the gearbox barring gear; the lubricating oil is divided into two paths by the oil supply valve block (17), and one path of lubricating oil is sprayed to the direction of the ratchet wheel (18) by the short pipe (20).
4. A gearbox barring gear as claimed in claim 3 wherein: the lowest point of the short pipe (20) is higher than the highest point of the clutch output gear ring (29), the vertical distance d between the short pipe and the clutch output gear ring is more than 0, the end part of the short pipe (20) is provided with a throttling hole, the axial direction of the throttling hole faces to the ratchet wheel (18), and the lubricating oil is mainly used for lubricating the ratchet wheel (18) and the pawl (16); the other path of lubricating oil is supplied into the flange through a bent pipe (21), and the lubricating oil is used for lubricating the meshing gear (6), two rolling bearings (7) arranged at the meshing gear (6), a manual turning gear (11), two ball bearings (10) arranged at the manual turning gear (11), a clutch driving tooth (15) and a sliding tooth (19); the lubricating oil comes from the main oil inlet pipe of the gear box.
CN202110512244.8A 2021-05-11 2021-05-11 Gear box barring gear Active CN113187566B (en)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211070A (en) * 1977-06-24 1980-07-08 Bbc Brown Boveri & Company Limited Start-up motor assembly for rotational machines
JP2000018246A (en) * 1998-07-02 2000-01-18 Matsushita Electric Ind Co Ltd Turning gear
CN2780999Y (en) * 2005-04-21 2006-05-17 王智 Barring gear
JP2010174882A (en) * 2008-12-29 2010-08-12 Sumitomo Heavy Ind Ltd Reduction gear with output pinion for wind generation system, and installation process of output shaft thereof
CN201953940U (en) * 2011-04-11 2011-08-31 南京金腾重载齿轮箱有限公司 Two-way clutching electric barring device
US20130243579A1 (en) * 2010-11-05 2013-09-19 Alstom Technology Ltd Barring gear assembly for driving in rotation a shaft of a turbo-alternator group
CN103410683A (en) * 2013-08-22 2013-11-27 南车株洲电力机车研究所有限公司 High and low speed shaft turning gear of high power wind generation set and using method thereof
US20160230771A1 (en) * 2015-02-06 2016-08-11 Anja Christina DOBAT Geared Turbomachine
CN109252905A (en) * 2018-07-09 2019-01-22 浙江杰特优动力机械有限公司 Based on the electric barring and its working method axially engaged
CN110454245A (en) * 2019-08-30 2019-11-15 福建福清核电有限公司 A kind of main turning gear having additional rapid escape valve
US10533459B1 (en) * 2016-07-07 2020-01-14 Kenneth Knecht Slow turning gear adapter to eliminate turbine bucket wear

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211070A (en) * 1977-06-24 1980-07-08 Bbc Brown Boveri & Company Limited Start-up motor assembly for rotational machines
JP2000018246A (en) * 1998-07-02 2000-01-18 Matsushita Electric Ind Co Ltd Turning gear
CN2780999Y (en) * 2005-04-21 2006-05-17 王智 Barring gear
JP2010174882A (en) * 2008-12-29 2010-08-12 Sumitomo Heavy Ind Ltd Reduction gear with output pinion for wind generation system, and installation process of output shaft thereof
US20130243579A1 (en) * 2010-11-05 2013-09-19 Alstom Technology Ltd Barring gear assembly for driving in rotation a shaft of a turbo-alternator group
CN201953940U (en) * 2011-04-11 2011-08-31 南京金腾重载齿轮箱有限公司 Two-way clutching electric barring device
CN103410683A (en) * 2013-08-22 2013-11-27 南车株洲电力机车研究所有限公司 High and low speed shaft turning gear of high power wind generation set and using method thereof
US20160230771A1 (en) * 2015-02-06 2016-08-11 Anja Christina DOBAT Geared Turbomachine
US10533459B1 (en) * 2016-07-07 2020-01-14 Kenneth Knecht Slow turning gear adapter to eliminate turbine bucket wear
CN109252905A (en) * 2018-07-09 2019-01-22 浙江杰特优动力机械有限公司 Based on the electric barring and its working method axially engaged
CN110454245A (en) * 2019-08-30 2019-11-15 福建福清核电有限公司 A kind of main turning gear having additional rapid escape valve

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张军等: "低速大扭矩Ⅰ型复合齿轮转子马达的机理研究", 《农业机械学报》 *
陈晓明等: "1000MW汽轮机组盘车装置研究及设计", 《东方电气评论》 *

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