CN107917180B - Transmission case for diesel locomotive - Google Patents

Transmission case for diesel locomotive Download PDF

Info

Publication number
CN107917180B
CN107917180B CN201711166971.3A CN201711166971A CN107917180B CN 107917180 B CN107917180 B CN 107917180B CN 201711166971 A CN201711166971 A CN 201711166971A CN 107917180 B CN107917180 B CN 107917180B
Authority
CN
China
Prior art keywords
gear
connecting shaft
distance ring
oil
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201711166971.3A
Other languages
Chinese (zh)
Other versions
CN107917180A (en
Inventor
肖开勇
易志新
王林
罗晓龙
宋红娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Ziyang Transmission Co Ltd
Original Assignee
CRRC Ziyang Transmission Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CRRC Ziyang Transmission Co Ltd filed Critical CRRC Ziyang Transmission Co Ltd
Priority to CN201711166971.3A priority Critical patent/CN107917180B/en
Publication of CN107917180A publication Critical patent/CN107917180A/en
Application granted granted Critical
Publication of CN107917180B publication Critical patent/CN107917180B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • 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
    • F16H57/0018—Shaft assemblies for gearings
    • F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
    • 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
    • F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
    • 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
    • F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
    • 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
    • F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
    • 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
    • F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
    • F16H57/0404—Lubricant filters
    • 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
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • 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
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • 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
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • 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
    • F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing

Landscapes

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

Abstract

The invention discloses a transmission case for a diesel locomotive, which comprises a generator connecting assembly, an input shaft assembly and a starting motor connecting assembly, wherein the generator connecting assembly, the input shaft assembly and the starting motor connecting assembly are arranged in a transmission case body; the transmission case body comprises an upper case body and a lower case body; the input assembly is respectively meshed with the generator connecting assembly and the starting motor connecting assembly; the generator connection assembly comprises a first connection shaft; a first gear which is tightly attached to the step surface of the first connecting shaft and is in taper fit with the first connecting shaft is sleeved on the first connecting shaft; a first distance ring and a sealing structure are sleeved on the first connecting shaft positioned at the right end of the first gear, and a second distance ring, a first pressing plate and a first end cover connected with the transmission box body are arranged on the first connecting shaft positioned at the left end of the first gear.

Description

Transmission case for diesel locomotive
Technical Field
The invention belongs to the technical field of transmission cases, and particularly relates to a transmission case for a diesel locomotive.
Background
The internal combustion locomotive uses the internal combustion engine as motive power and drives wheels through a transmission device. According to the types of internal combustion engines on locomotives, most internal combustion engines adopted on railways in China are diesel engines. Fuel oil (diesel oil) is combusted in a cylinder to convert heat energy into mechanical energy output by a diesel oil crankshaft, but the mechanical energy is not used for directly driving a driving wheel, but is converted into mechanical energy suitable for the traction characteristic requirement of the locomotive through a transmission device, and then the driving wheel of the locomotive is driven to rotate on a track through a walking part. The existing transmission device has the problems of low reliability, low efficiency, high operation noise and the like.
Disclosure of Invention
The invention aims to provide a transmission case for an internal combustion locomotive aiming at the defects of the prior art, and aims to solve the problem of low reliability of the prior transmission device.
In order to achieve the purpose, the invention adopts the technical scheme that:
the transmission case for the diesel locomotive comprises a generator connecting assembly, an input shaft assembly and a starting motor connecting assembly which are arranged in a transmission case body; the transmission case body comprises an upper case body and a lower case body; the input assembly is respectively meshed with the generator connecting assembly and the starting motor connecting assembly;
the generator connection assembly comprises a first connection shaft; a first gear which is tightly attached to the step surface of the first connecting shaft and is in taper fit with the first connecting shaft is sleeved on the first connecting shaft; a first distance ring and a sealing structure are sleeved on a first connecting shaft positioned at the right end of the first gear, and a second distance ring, a first pressing plate and a first end cover connected with the transmission box body are arranged on the first connecting shaft positioned at the left end of the first gear;
the input shaft assembly comprises an input shaft, and a second gear which is tightly attached to the step surface of the input shaft and is in meshed connection with the first gear is sleeved on the input shaft; the second gear is connected with the input shaft in a taper fit manner; the input shaft positioned at the right end of the second gear is sleeved with a sealing structure, a third distance ring, a flange and a second pressing plate, and the input shaft positioned at the left end of the second gear is provided with a fourth distance ring and a first pressing cover;
the starting motor connecting assembly comprises a second connecting shaft; a third gear which is tightly attached to the step surface of the second connecting shaft and is meshed and connected with the second gear is sleeved on the second connecting shaft; the third gear is in taper fit with the second connecting shaft; and a fifth distance ring, a sealing structure and a connecting flange are arranged on a second connecting shaft at the right end of the third gear, and a sixth distance ring, a third pressing plate and a second end cover are sequentially arranged on the second connecting shaft at the left end of the third gear.
Preferably, 1: the 50 conical degree connection, and the interference magnitude of the conical degree connection is 0.13mm-0.15mm, 0.17mm-0.19mm and 0.11mm-0.13mm, the contact area between the first connecting shaft external conical surface and the first gear internal conical surface, between the second gear and the input shaft and between the third gear and the second connecting shaft is more than or equal to 85%.
Preferably, the first distance ring and the bearing and the second distance ring and the bearing sleeve are respectively arranged on two sides of the first gear through interference fit; the left side of the second distance ring is provided with a first pressing plate, and the left side of the first pressing plate is provided with a first end cover connected with the transmission case body through a bolt.
Preferably, the third distance ring and the flange are connected by a 1: the 50 taper fit is arranged on the input shaft, and the contact area of the conical surface is more than or equal to 85 percent; the second pressure plate is arranged at the right side end of the input shaft through a bolt; the fourth centering ring and the bearing are arranged on the left side of the second gear in an interference fit manner; and the fourth distance ring is fixedly connected with the second gland through the matching between the bearing sleeve and the bearing.
Preferably, a hole groove which is square and is matched and connected with a transmission shaft of the gear oil pump is formed in the second gland.
Preferably, the gear oil pump is communicated with the oil pipes through the oil separator.
Preferably, the fifth distance ring and the coupling flange are connected by a connection between 1: the taper of 50 is matched and arranged on the second connecting shaft, and the contact area of the conical surface is more than or equal to 85 percent; the sixth distance ring is arranged close to the third gear, and a third pressing plate is arranged on the left side of the sixth distance ring; and a third end cover connected with the transmission case body is arranged on the left side of the third pressure plate through a bolt.
Preferably, the sealing structure comprises an oil slinger and a bearing sleeve; the oil slinger is sleeved on the first connecting shaft, the input shaft and the second connecting shaft and forms a labyrinth oil seal with the bearing sleeve.
Preferably, the lower box body is provided with an oil filtering structure, and the oil filtering structure comprises a magnetic head base, a supporting frame and an installation flange fixed on the lower box body; one end of the magnetic head seat is provided with a magnet, and the other end of the magnetic head seat is in threaded connection with the mounting flange; the mounting flange is in clearance fit with the support frame; the support frame is sleeved with a filter screen.
Preferably, the upper box body and the lower box body are connected in a matched mode through a taper pin and a bolt; the upper box body is provided with a breather and a pressure gauge; the lower end of the pressure gauge is communicated with the oil separator, and the oil separator is provided with an adjusting bolt for adjusting oil pressure; the lower box body is provided with an oil pointer assembly and a screw plug.
The transmission case for the internal combustion locomotive provided by the invention has the following beneficial effects:
according to the invention, power and rotating speed are input by the input shaft assembly and are respectively transmitted to the generator connecting assembly and the starting motor connecting assembly, so that the transmission of mechanical energy is realized. And the first gear and the first connecting shaft, the second gear and the input shaft and the third gear second connecting shaft are connected in a taper fit manner, so that the first gear and the first connecting shaft, the second gear and the input shaft and the third gear second connecting shaft are connected more compactly and firmly, the loss of mechanical energy is reduced in the power transmission process, and the reliability of power transmission is improved. Besides, distance rings, pressing plates and end covers are arranged on two sides of the first connecting shaft, the input shaft and the second connecting shaft through bearings and used for positioning axial movement of the first connecting shaft, the input shaft and the second connecting shaft and preventing axial movement of the first connecting shaft, the input shaft and the second connecting shaft, and therefore reliability of power transmission of the transmission case is improved.
The invention has compact structure and novel conception, effectively solves the problem of poor reliability of the transmission case of the traditional diesel locomotive, and has stronger practicability and good popularization.
Drawings
Fig. 1 is a structural view of a transmission case for an internal combustion engine vehicle.
FIG. 2 is a block diagram of a transmission generator connection assembly for a diesel locomotive.
FIG. 3 is a block diagram of a transmission input shaft assembly for an internal combustion locomotive.
Fig. 4 is a block diagram of a transmission start motor connection assembly for a diesel locomotive.
Fig. 5 is a diagram of a transmission lubrication configuration for an internal combustion locomotive.
Fig. 6 is a transmission oil filter structure view for an internal combustion engine vehicle.
Fig. 7 is a view showing a seal structure of a transmission case for an internal combustion engine vehicle.
Wherein, 1, the generator connecting component; 2. an input shaft assembly; 3. starting the motor connecting assembly; 4. an upper box body; 5. a lower box body; 6. a pressure gauge; 7. an oil separator; 8. adjusting the bolt; 9. assembling the oil pointer; 10. a first connecting shaft; 11. a first gear; 12. a first pitch ring; 13. an oil slinger; 14. a bearing housing; 15. a seventh distance ring; 16. a second distance ring; 17. a first platen; 18. a first end cap; 19. an input shaft; 20. a second gear; 21. a third distance ring; 22. a flange; 23. a second platen; 24. a fourth distance ring; 25. a gland; 26. an eighth distance ring; 27. a gear oil pump; 28. a second connecting shaft; 29. a third gear; 30. a fifth distance ring; 31. a coupling flange; 32. a sixth distance ring; 33. a head base; 34. a magnet; 35. installing a flange; 36. a support frame; 37. a filter screen; 38. a third press plate; 39. a second end cap; 40. an oil pipe; 41. a filtered oil outlet; 42. a spring.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
According to one embodiment of the application, as shown in fig. 1-7, the transmission case for the diesel locomotive of the scheme comprises a generator connecting assembly 1, an input shaft assembly 2 and a starting motor connecting assembly 3 which are arranged in a transmission case body, wherein the transmission case body comprises an upper case body 4 and a lower case body 5, and the input assembly is respectively connected with the generator connecting assembly 1 and the starting motor connecting assembly 3 in a meshing manner.
The upper box body 4 is provided with a pressure gauge 6, the pressure gauge 6 is communicated with an oil distributor 7, and the oil distributor 7 is provided with an adjusting bolt 8 for adjusting the flow of oil; the flow of the oil is controlled by the adjusting bolt 8, namely the pressure of the oil in the transmission case is controlled by the pressure gauge 6 and the oil distributor 7, so that the operating efficiency of the transmission case is ensured. The oil pointer assembly 9 is arranged on the lower box body 5 through a screw plug and a gasket.
Referring to fig. 2, the generator connecting assembly 1 includes a first connecting shaft 10, a first gear 11 is sleeved on a step surface of the first connecting shaft 10 through interference fit, interference magnitude is between 0.13mm and 0.15mm, the first connecting shaft 10 and the first gear 11 are connected in a 1:50 taper fit manner, a contact area between an outer conical surface of the first connecting shaft 10 and an inner conical surface of the first gear 11 is greater than or equal to 85%, hardness of the outer conical surface of the first connecting shaft 10 is 45-50 HRC, DS is greater than or equal to 1.5mm, and disassembly oil pressure P is less than or equal to 209MPa, so that a structure between the first connecting shaft 10 and the first gear 11 is more compact, and transmission reliability of the first connecting shaft is improved, wherein the first connecting shaft 10 is made of carbon steel 45#, and hardening and tempering hardness is 260-300 HBs.
The first distance ring 12 is matched with the bearing and is arranged on the right side of the first gear 11 through an interference connecting sleeve, and then the oil slinger 13, the bearing sleeve 14 and the seventh distance ring 15 are sleeved on the first connecting shaft 10 to position the first connecting shaft 10, so that the movement of the first connecting shaft 10 in the axial direction is limited, the loss of excessive energy in the power transmission process is avoided, and the reliability of power transmission is improved. The left end of the first gear 11 is sleeved with a second distance ring 16 through a bearing sleeve 14 and a bearing on the first connecting shaft 10 close to the first gear 11, the left side of the second distance ring 16 is provided with a first pressing plate 17 through the bearing, the first pressing plate 17 is fixed through bolts, the left side of the first pressing plate 17 is provided with a first end cover 18, the first end cover 18 is fixed through the matching of the bolts and a gasket, and meanwhile, the first end cover 18 is fixed on the transmission box body through the matching of the bolts and the gasket.
Referring to fig. 3, the input shaft assembly 2 includes an input shaft 19, and a second gear 20 is in meshing engagement with the first gear 11 to enable power transmission between the input shaft assembly 2 and the generator coupling assembly 1. The second tooth is in interference fit and is tightly sleeved on the step surface of the input shaft 19, the interference magnitude of the second tooth is 0.13-0.15mm, the input shaft 19 and the second gear 20 are connected in a 1:50 taper fit mode, the contact area of the conical surface between the input shaft 19 and the first gear 11 is larger than or equal to 85%, the hardness of the outer conical surface of the input shaft 19 is 45-50 HRC, and the DS is larger than or equal to 1.5 mm. The structure between the input shaft 19 and the second gear 20 is more compact, and the transmission reliability is improved, wherein the material of the input shaft 19 is carbon steel No. 45, and the hardening and tempering hardness is 260-300 HBs.
The right side of the second gear 20 is provided with a NU314E cylindrical roller bearing, and is further provided with a bearing sleeve 14, an oil slinger 13 and a felt ring to prevent the leakage of lubricating oil. The third distance ring 21 and the flange 22 pass between 1: the 50 taper fit is arranged on the input shaft 19, the interference magnitude is 0.13-0.15mm, the contact area of the conical surface is not less than 85%, and then the second pressing plate 23 is arranged at the edge end of the input shaft 19 through a bolt to tightly press the structure of the left end of the input shaft 19, so that the structure is more compact. In addition, the matching connection among the third distance ring 21, the flange 22 and the input shaft 19 prevents the axial movement of the input shaft 19 and reduces the power loss of the input shaft 19. The fourth distance ring 24 and the NU314E bearing are sleeved at the left end of the second gear 20 through interference fit, and the bearing sleeve 14, the QJ214Q2Q1 bearing, the gland 25 and the bolt are sequentially arranged at the left end of the fourth distance ring 24 and used for pressing the inner ring of the bearing. The input shaft 19 assembly 2 is horizontally placed on the transmission box body through an M10 screw and a gasket, a distance ring and the gear oil pump 27 are further installed at one end of the input shaft 19, a transmission shaft in the gear oil pump 27 is inserted into a rectangular hole groove formed in the gland 25, the gland 25 is driven to rotate when the input shaft 19 rotates, and the gland 25 drives the gear oil pump 27 to rotate.
Referring to fig. 4, the connecting assembly 3 for the starting motor includes a second connecting shaft 28, a third gear 29 is sleeved on a step surface of the second connecting shaft 28 through interference fit, interference is 0.13mm-0.15mm, the second connecting shaft 28 and the third gear 29 are connected in a 1:50 taper fit manner, a contact area between an outer conical surface of the second connecting shaft 28 and an inner conical surface of the third gear 29 is greater than or equal to 85%, the hardness of the outer conical surface of the second connecting shaft 28 is 45-50 HRC, DS is greater than or equal to 1.5mm, and the disassembling oil pressure P is less than or equal to 209MPa, so that the structure between the second connecting shaft 28 and the third gear 29 is more compact, and the transmission reliability of the connecting assembly is improved, wherein the second connecting shaft 28 is made of carbon steel 45#, and the hardening and tempering hardness is 260 and 300 HBs.
The right end of a third gear 29 on the second connecting shaft 28 is sleeved with a fifth distance ring 30, the fifth distance ring 30 is fixed through a NU2214E cylindrical roller bearing, a bearing sleeve 14, an oil slinger 13 and a felt ring are further mounted at the right end of the fifth distance ring 30, a connecting flange 31 is mounted at the right side end of the second connecting shaft 28, the connecting flange 31 is connected with the second connecting shaft 28 in a 1:50 taper fit mode, the installation interference range is 0.11-0.13mm, the contact area of the connecting flange 31 and a second connecting conical surface is not less than 85%, and the connecting flange is used for positioning and preventing axial movement of a bearing. A pressing plate and a bolt M8 are arranged on the inner side of the connecting flange 31 and used for fixedly pressing the right part of the second connecting shaft 28, and a pin, a rubber ring, a gasket, a stop washer and a nut M16 are arranged in a hole of the connecting flange 31 and used for further fixedly mounting the connecting flange 31 on the second connecting shaft 28.
The left end of the third gear 29 on the second connecting shaft 28 is sleeved with a sixth distance ring 32, the sixth distance ring 32 is fixed on the second connecting shaft 28 through a NU2214E bearing by adopting a conventional small interference fit, and the bearing sleeve 14, the bearing, the third pressing plate 38 and the bolt are continuously arranged on the left side of the sixth distance ring 32 and used for pressing the sixth distance ring 32, so that the structure is more compact. And a second end cover 39 is arranged at the edge end of the third pressure plate 38, the second end cover 39 is fixed on the second connecting shaft 28 by using a bolt M12 and a gasket, and the end cover is fixed on the transmission case body by matching the bolt and the gasket, so that the starting motor connecting assembly 3 is horizontally placed on the transmission case body.
Referring to fig. 1 and 5, the gear oil pump 27 is communicated with the plurality of oil pipes 40 through the oil separator 7, a transmission shaft in the gear oil pump 27 is inserted into a rectangular hole groove formed in the gland 25, the input shaft 19 rotates and simultaneously drives the gland 25 to rotate, the gland 25 drives the gear oil pump 27 to rotate, the gear oil pump 27 rotates and further conveys oil to each component through the oil pipes 40, each component is lubricated, and the high-efficiency operation of the transmission box body is guaranteed constantly.
Referring to fig. 6, an oil filtering structure is mounted on the lower case 5, the oil filtering structure includes a magnetic head base 33 mounted on a mounting flange 35 by a screw connection, and a plurality of magnets 34 are mounted on the magnetic head base 33. The mounting flange 35 is in clearance fit with the support frame 36, a spring 42 is arranged between the mounting flange 35 and the support frame 36 and used for pushing the support frame 36 to move and forcing the support frame 36 to be propped against the hole of the lower box body 5, and a layer of filter screen 37 is sleeved on the support frame 36.
The lubricating oil is primarily filtered through the filter screen 37 to remove impurities in the lubricating oil, and then the lubricating oil enters the inner cavity of the support frame 36, the magnet 34 on the magnet head seat 33 adsorbs the system iron powder in the lubricating oil, and the filtered lubricating oil is discharged from the filtered oil outlet 41, so that the lubricating oil is filtered again, and the lubricating effect of the lubricating oil is ensured.
Referring to fig. 7, sealing structures are respectively arranged on the generator connecting assembly 1, the input shaft assembly 2 and the starter motor connecting assembly 3, and each sealing structure includes an oil slinger 13 respectively arranged on the first connecting shaft 10, the input shaft 19 and the second connecting shaft 28, and a bearing sleeve 14 fixed on the transmission case body and forming a labyrinth seal with the oil slinger 13.
When the oil slinger 13 rotates along with the rotation of the first connecting shaft 10, the input shaft 19 and the second connecting shaft 28, oil is thrown into the groove on the bearing sleeve 14 and is removed, except that the gap between teeth between the oil slinger 13 and the bearing sleeve 14 is 0.2-0.5 mm, the labyrinth seal is composed of the teeth on the oil slinger 13 and the groove group on the bearing sleeve 14, when in operation, a throttling effect is generated through the drastic change of the gap between teeth between the oil slinger 13 and the bearing sleeve 14 and the section of the groove group, and after the oil leaked in the transmission box passes through the processes of multiple oil slinging, throttling, oil slinging and throttling, the leakage of the oil is effectively avoided, meanwhile, the sealing structure has no contact friction during operation, stable sealing performance and long service life.
The invention has compact structure and novel conception, effectively solves the problem of poor reliability of the transmission case of the traditional diesel locomotive, and has stronger practicability and good popularization.
While the embodiments of the invention have been described in detail in connection with the accompanying drawings, it is not intended to limit the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.

Claims (1)

1. A kind of drive box used for diesel locomotive, characterized by that: the power generator connecting assembly, the input shaft assembly and the starting motor connecting assembly are arranged in the transmission case body; the transmission case body comprises an upper case body and a lower case body; the input assembly is respectively meshed with the generator connecting assembly and the starting motor connecting assembly;
the generator connection assembly includes a first connection shaft; the first connecting shaft is sleeved with a first gear which is tightly attached to the step surface of the first connecting shaft and is in taper fit with the first connecting shaft; a first distance ring and a sealing structure are sleeved on a first connecting shaft positioned at the right end of the first gear, and a second distance ring, a first pressing plate and a first end cover connected with the transmission box body are arranged on the first connecting shaft positioned at the left end of the first gear;
the input shaft assembly comprises an input shaft, and a second gear which is tightly attached to the step surface of the input shaft and is in meshed connection with the first gear is sleeved on the input shaft; the second gear is connected with the input shaft through taper fit; the input shaft positioned at the right end of the second gear is sleeved with a sealing structure, a third distance ring, a flange and a second pressing plate, and the input shaft positioned at the left end of the second gear is provided with a fourth distance ring and a first pressing cover;
the starting motor connecting assembly comprises a second connecting shaft; a third gear which is tightly attached to the step surface of the second connecting shaft and is meshed and connected with the second gear is sleeved on the second connecting shaft; the third gear is in taper fit with the second connecting shaft; a fifth distance ring, a sealing structure and a connecting flange are arranged on a second connecting shaft at the right end of the third gear, and a sixth distance ring, a third pressing plate and a second end cover are sequentially arranged on the second connecting shaft at the left end of the third gear;
all adopt 1 between first gear and first connecting axle, second gear and input shaft and third gear and the second connecting axle: the 50 conical degree connection, and the interference magnitude of the conical degree connection is 0.13mm-0.15mm, 0.17mm-0.19mm and 0.11mm-0.13mm, the contact area between the first connecting shaft external conical surface and the first gear internal conical surface, the contact area between the second gear and the input shaft, and the contact area between the third gear and the second connecting shaft are more than or equal to 85%;
the first distance ring and the bearing and the second distance ring and the bearing sleeve are arranged on two sides of the first gear respectively through interference fit; a first pressing plate is arranged on the left side of the second distance ring, and a first end cover connected with the transmission box body is arranged on the left side of the first pressing plate through a bolt;
the third distance ring and the flange are connected by a 1: the 50 taper fit is arranged on the input shaft, and the contact area of the conical surface is more than or equal to 85 percent; the second pressure plate is arranged at the right side end of the input shaft through a bolt; the fourth centering ring and the bearing are arranged on the left side of the second gear in an interference fit manner; the fourth distance ring is fixedly connected with the second gland through the matching between the bearing sleeve and the bearing;
a hole groove which is square and is matched and connected with a transmission shaft of the gear oil pump is formed in the second gland;
the gear oil pump is communicated with the oil pipes through the oil separator;
the fifth distance ring and the coupling flange are connected through a connection part 1: the taper of 50 is matched and arranged on the second connecting shaft, and the contact area of the conical surface is more than or equal to 85 percent; the sixth distance ring is arranged close to the third gear, and a third pressing plate is arranged on the left side of the sixth distance ring; a third end cover connected with the transmission case body is arranged on the left side of the third pressure plate through a bolt;
the sealing structure comprises an oil slinger and a bearing sleeve; the oil slinger is sleeved on the first connecting shaft, the input shaft and the second connecting shaft and forms a labyrinth oil seal with the bearing sleeve;
the lower box body is provided with an oil filtering structure, and the oil filtering structure comprises a magnetic head seat, a supporting frame and an installation flange fixed on the lower box body; one end of the magnetic head seat is provided with a magnet, and the other end of the magnetic head seat is in threaded connection with the mounting flange; the mounting flange is in clearance fit with the support frame; a filter screen is sleeved on the support frame;
the upper box body and the lower box body are connected in a matched manner through a taper pin and a bolt; the upper box body is provided with a breather and a pressure gauge; the lower end of the pressure gauge is communicated with the oil separator, and the oil separator is provided with an adjusting bolt for adjusting oil pressure; the lower box body is provided with an oil pointer assembly and a screw plug.
CN201711166971.3A 2017-11-21 2017-11-21 Transmission case for diesel locomotive Active CN107917180B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711166971.3A CN107917180B (en) 2017-11-21 2017-11-21 Transmission case for diesel locomotive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711166971.3A CN107917180B (en) 2017-11-21 2017-11-21 Transmission case for diesel locomotive

Publications (2)

Publication Number Publication Date
CN107917180A CN107917180A (en) 2018-04-17
CN107917180B true CN107917180B (en) 2021-03-23

Family

ID=61897569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711166971.3A Active CN107917180B (en) 2017-11-21 2017-11-21 Transmission case for diesel locomotive

Country Status (1)

Country Link
CN (1) CN107917180B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108825760A (en) * 2018-05-30 2018-11-16 知豆电动汽车有限公司 Gearbox gear and gear shaft coupling structure couple tooling and coupling method
CN108612839B (en) * 2018-07-13 2021-04-06 南京创力传动机械有限公司 Integral double-split flow gear transmission lubricating device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130248292A1 (en) * 2012-03-22 2013-09-26 GM Global Technology Operations LLC Release and Retention of Viscosity Modifiers Based on Oil Temperature
CN202612567U (en) * 2012-04-15 2012-12-19 杭州纽创工业设计有限公司 Long output shaft gear tail mechanism for combination gear case
CN202579822U (en) * 2012-05-03 2012-12-05 南京高速齿轮制造有限公司 Rail transit gear box
CN102927250B (en) * 2012-10-26 2015-03-11 中国北车集团大连机车车辆有限公司 Auxiliary transmission system gearbox of diesel locomotive and idling clutch control method of gearbox
CN106402344A (en) * 2016-09-27 2017-02-15 资阳中车传动有限公司 Auxiliary transmission gear case of diesel-electric locomotive

Also Published As

Publication number Publication date
CN107917180A (en) 2018-04-17

Similar Documents

Publication Publication Date Title
CN107917180B (en) Transmission case for diesel locomotive
CN202790344U (en) Vertical type cycloidal pin gear speed reducer
WO2014190631A1 (en) High-pressure fuel pump driving structure
CN107420240B (en) High pressure common rail diesel engine drive common rail pump intermediate gear installation device
CN201443433U (en) Rear power takeoff device of engine
CN101245780B (en) Transmission pump seal
US9200609B2 (en) Torque transmission mechanism
CN109084123B (en) Compact closed flywheel housing and elastic damping coupling arrangement
CN207261144U (en) A kind of Design of High Pressure Common Rail Diesel Engine drives common rail pump idler gear erecting device
CN201041119Y (en) Engine fuel injection pump mounting and regulation device
CN201031716Y (en) Engine oil centrifugal filtration device of motorcycle engine
CN110939738B (en) Quick-release end face sealing device
CN108915919B (en) Common rail pump driving device of high-pressure common rail diesel engine
CN109404194B (en) Electric starting mechanism for pedal motorcycle engine
CN208153636U (en) A kind of coaxial bevel gear speed reducer
CN201774348U (en) Adjustable shaft seal structure of electric motor
CN109538745A (en) The connection spline lubricating structure of electric commercial vehicle motor and gearbox
US20150014119A1 (en) Torque Transmission Mechanism
CN212079495U (en) Combined drive system
CN212744155U (en) Power leading-out device of full-floating motorcycle engine
CN210799706U (en) Thrust device for engine crankshaft
CN209557628U (en) The connection spline lubricating structure of electric commercial vehicle motor and gearbox
CN2866985Y (en) Diesel engine crankshaft front end sealing device
CN210087958U (en) Driving bevel gear assembly
CN101021172A (en) Engine oil secondary filtering device for engine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 641302 No. 68, No. 1, Qingquan Pu street, Linjiang Town, Yanjiang District, Ziyang, Sichuan.

Applicant after: Ziyang Zhong Gong locomotive transmission Co., Ltd.

Address before: 641300 No. 1, Qingquan Pu street, Linjiang Town, Yanjiang District, Ziyang, Sichuan, 1

Applicant before: CRRC ZIYANG TRANSMISSION CO., LTD.

GR01 Patent grant
GR01 Patent grant