CN113187880B - Sealing end cover for tilting device gear box - Google Patents
Sealing end cover for tilting device gear box Download PDFInfo
- Publication number
- CN113187880B CN113187880B CN202110494308.6A CN202110494308A CN113187880B CN 113187880 B CN113187880 B CN 113187880B CN 202110494308 A CN202110494308 A CN 202110494308A CN 113187880 B CN113187880 B CN 113187880B
- Authority
- CN
- China
- Prior art keywords
- end cover
- cover body
- gear box
- speed reducer
- primary speed
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 40
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 101
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 229920001875 Ebonite Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 10
- 239000010687 lubricating oil Substances 0.000 description 7
- 238000003754 machining Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
-
- 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
- F16H57/029—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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/032—Gearboxes; Mounting gearing therein characterised by the materials used
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a sealing end cover for a gear box of a tilting device, which comprises an end cover body arranged in a counter bore of the end face of a gear box bearing seat of a primary speed reducer, an inner conical ring arranged in the counter bore and positioned at the periphery of the end cover body, a sealing ring arranged between the outer periphery of the bottom of the end cover body and the inner periphery of the counter bore, and a tightening bolt for fastening the end cover body to the gear box bearing seat of the primary speed reducer, wherein the end cover body comprises an upper end cover body outer conical part and a lower end cover body straight part, the outer periphery of the inner conical ring is a cylindrical surface and is attached to the inner periphery of the wide part of the counter bore, the inner periphery of the inner conical ring is an inner conical surface with the upper width and the lower width, and the outer periphery of the outer conical part of the end cover body is an outer conical surface matched with the inner conical surface of the inner conical ring. The sealing end cover structure can effectively improve the sealing effect and sealing reliability of the gear box of the tilting device, solve the problem of oil leakage of the end cover of the gear box of the speed reducer of the tilting device, and reduce the maintenance cost of equipment.
Description
Technical Field
The invention belongs to the technical field of gear box sealing, and particularly relates to a sealing end cover for a gear box of a tilting device.
Background
As shown in fig. 1 and 2, in the tilting device on the converter steelmaking equipment, in order to ensure that the end cover 30 at the joint of the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 is convenient to disassemble and assemble, a sufficient gap S needs to be reserved between the end cover 30 and the counter bore of the end face of the bearing seat of the gear box matched with the end cover along the circumferential direction. The meshing area of the large gear of the secondary speed reducer and the gear shaft of the primary speed reducer adopts a forced spraying lubrication mode, the meshing area is just positioned at the position where the output shaft of the primary speed reducer passes through the hole of the secondary speed reducer, along with the rotation of the gear shaft and the gear and the continuous progress of splash lubrication, the lubricating oil in the secondary speed reducer enters the hole of the gear box at the position connected with the primary speed reducer, and then enters a cavity area between the primary speed reducer and the secondary speed reducer at the position of legal flange 40, so that the lubricating oil splashes to a gap S in the circumferential direction of the end cover, and the lubricating oil flows to the outside of the primary speed reducer through the gap S so as to cause oil seepage. In addition, as the output shaft of the primary speed reducer runs, the life of the oil seal 50 sealing the lubricating oil inside the gear box of the primary speed reducer at the output shaft is reduced, and the sealing reliability is reduced, so that the lubricating oil inside the gear box of the primary speed reducer passes through the bearing, and enters a cavity area at the joint of the primary speed reducer and the secondary speed reducer through the oil seal 50, and the lubricating oil in the area enters a gap S in the circumferential direction of the end cover due to the air flow disturbance caused by the rotation of the gear shaft, and also flows to the outside of the primary speed reducer, so that oil leakage occurs. Although the sealing reliability of the end caps is improved to some extent in the prior art by improving the surface accuracy and finish of the end caps 30 that mate with the end faces of the gearbox housing, by plugging the sealing compound or other adhesive strips at the gap S, the problem of oil leakage from the end caps of the tilting device reduction gearbox is not solved at all, and sometimes equipment needs to be shut down for maintenance in order to handle the oil leakage, which undoubtedly increases equipment maintenance costs and even causes unnecessary economic loss when shut down.
Disclosure of Invention
In order to solve the above-mentioned problems existing in the prior art, the present invention provides a seal end cover for a tilting device gear box, the seal end cover is mounted at the joint of a primary speed reducer gear box and a secondary speed reducer gear box in the tilting device, and comprises an end cover body mounted in a counter bore of a bearing seat end face of the primary speed reducer gear box, an inner cone ring mounted in the counter bore of the bearing seat end face of the primary speed reducer gear box and positioned at the periphery of the end cover body, a seal ring arranged between the outer periphery of the bottom of the end cover body and the inner periphery of the counter bore of the bearing seat end face of the primary speed reducer gear box, and a tightening bolt for tightening the end cover body on the bearing seat of the primary speed reducer gear box, wherein:
The end face of the bearing seat of the gear box of the primary speed reducer is provided with a stepped hole, the stepped hole is formed by a wide opening part at the upper part and a narrow opening part at the lower part, the end cover body comprises an outer cone part of the end cover body at the upper part and a straight opening part of the end cover body at the lower part, the outer cone part of the end cover body is arranged at the wide opening part of the end face of the bearing seat of the gear box of the primary speed reducer, and the straight opening part of the end cover body is arranged at the narrow opening part of the end face of the bearing seat of the gear box of the primary speed reducer;
The inner cone ring is arranged at the wide opening part of the end face counter bore of the gear box bearing seat of the primary speed reducer, the outer peripheral surface of the inner cone ring is a cylindrical surface and is attached to the inner peripheral surface of the wide opening part of the end face counter bore of the gear box bearing seat of the primary speed reducer, the inner peripheral surface of the inner cone ring is an inner cone surface with the upper width and the lower width, the outer peripheral surface of the outer cone part of the end cover body is an outer cone surface matched with the inner cone surface of the inner cone ring, and the outer cone part of the end cover body is nested and arranged in the inner cone ring.
Preferably, in the above-mentioned sealed end cover for a tilting device gear box, a plurality of cover lifting bolt holes, a plurality of positioning bolt holes and a plurality of screw holes are formed in an outer conical portion of an end cover body of the end cover body along a circumferential direction, an arc slotting section is formed in an upper end face of the outer conical portion of the end cover body, and a seal ring mounting groove is formed in an outer peripheral face of a bottom of a straight portion of the end cover body.
Preferably, in the sealing end cover for the tilting gear box, the sealing ring is sleeved in a sealing ring mounting groove on the outer peripheral surface of the bottom of the straight part of the end cover body, and is mounted between the outer peripheral surface of the bottom of the straight part of the end cover body and the inner peripheral surface of the narrow part of the end face counter bore of the gear box bearing seat of the primary speed reducer.
Preferably, in the above-described seal end cover for a tilting gear case, the arc radius of the arc grooved section on the upper end face of the outer cone of the end cover body and the arc radius of the end face of the flange provided protruding from the secondary reduction gear case are matched with each other.
Preferably, in the above seal end cover for a tilting device gear box, two cover lifting bolt holes are formed in an outer cone portion of an end cover body of the end cover body at 180 degrees along a circumferential direction.
Preferably, in the above seal end cover for a tilting device gear box, the outer tapered surface length of the outer tapered portion of the end cover body is greater than the inner tapered surface length of the inner tapered ring.
Preferably, in the sealing end cover for a tilting device gearbox, an upper portion of an outer conical surface of the outer conical portion of the end cover body is a cylindrical straight section.
Preferably, in the sealing end cover for a tilting device gearbox, an interference conical surface fit is formed between an outer conical surface of the outer conical portion of the end cover body and an inner conical surface of the inner conical ring.
Preferably, in the above seal end cover for a tilting device gear case, the end cover body is made of a steel material, and the inner cone ring is made of polytetrafluoroethylene or hard rubber.
The sealing end cover for the tilting device gearbox is reliable in structure, simple to manufacture, convenient and quick to install, convenient to assemble, disassemble and maintain, capable of effectively improving the sealing effect and sealing reliability of the tilting device gearbox, and capable of fundamentally solving the problem of oil leakage of the end cover of the tilting device speed reducer gearbox, so that the equipment maintenance cost is reduced, and unnecessary economic loss caused by shutdown and production stoppage is avoided.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a tilting device of a converter steelmaking plant.
Fig. 2 is a schematic view of a prior art end cap for a tilting gear case.
Fig. 3 is a schematic view of the seal head cover for a tilting gear case of the present invention.
Fig. 4 is a schematic structural view of the end cap body in the seal end cap for a tilting device gear case of the present invention.
Fig. 5 is a schematic top view of the end cap body of fig. 4.
Reference numerals illustrate:
10-of a primary speed reducer, 20-of a secondary speed reducer, 30-of an end cover, 40-of a handle flange and 50-of an oil seal;
The end cover comprises a 1-end cover body, a 2-inner taper ring, a 3-cover lifting bolt hole, a 4-sealing ring, a 4' -sealing ring mounting groove, a 5-positioning pin hole, a 6-tightening bolt, a 6' -screw hole, a 7-flange, a 7' -arc slotting section, an 8-end cover body outer taper part, a 9-end cover body straight part and an A-primary speed reducer gearbox bearing seat end face.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below in connection with specific embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 3,4 and 5, the sealing end cover for a gear box of a tilting device of the present invention is installed at the joint of the gear box of a primary speed reducer 10 and the gear box of a secondary speed reducer 20 in the tilting device, and comprises an end cover body 1 installed in a counter bore of the gear box bearing seat end face a of the primary speed reducer 10, an inner cone ring 2 installed in the counter bore of the gear box bearing seat end face a of the primary speed reducer 10 and positioned at the outer periphery of the end cover body 1, a sealing ring 4 arranged between the outer periphery of the bottom of the end cover body 1 and the inner periphery of the counter bore of the gear box bearing seat end face a of the primary speed reducer 10, and a tightening bolt 6 for fastening the end cover body 1 to the gear box bearing seat of the primary speed reducer 10.
The counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10 is a stepped hole and consists of a wide opening part at the upper part and a narrow opening part at the lower part. The end cover body 1 comprises an upper end cover body outer cone 8 and a lower end cover body straight opening 9, wherein the end cover body outer cone 8 is arranged at the wide opening of the counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10, and the end cover body straight opening 9 is arranged at the narrow opening of the counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10. The inner cone ring 2 is arranged at the wide opening part of the counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10, and the outer peripheral surface of the inner cone ring 2 is a cylindrical surface and is attached to the inner peripheral surface of the wide opening part of the counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10. The inner peripheral surface of the inner cone ring 2 is an inner cone surface with a wide upper part and a narrow lower part, and the outer peripheral surface of the outer cone part 8 of the end cover body 1 is an outer cone surface matched with the inner cone surface of the inner cone ring 2, so that the outer cone part 8 of the end cover body 1 is nested and arranged in the inner cone ring 2.
A plurality of cover lifting bolt holes 3, a plurality of positioning pin holes 5 and a plurality of screw holes 6 'are formed in the outer conical part 8 of the end cover body 1 along the circumferential direction, and an arc slotting section 7' is arranged on the upper end face of the outer conical part 8 of the end cover body 1. Further, a seal ring mounting groove 4' is provided on the bottom outer peripheral surface of the cap body straight portion 9 of the cap body 1.
The function of the cover bolt hole 3 is that the cover body 1 can be conveniently disassembled by the cover bolt hole 3 and the cover bolt matched with the cover bolt hole 3.
The screw hole 6 'has the function of tightening the screw 6 to be inserted into the screw hole 6' to fasten the end cover body 1 to the gear housing bearing housing of the primary speed reducer 10.
The function of the seal ring mounting groove 4' is to mount the seal ring 4 between the outer circumferential surface of the bottom of the end cover body 1 and the inner circumferential surface of the counter bore of the gear housing end face a of the primary speed reducer 10, more specifically, to mount the seal ring 4 between the outer circumferential surface of the bottom of the end cover body straight portion 9 of the end cover body 1 and the inner circumferential surface of the narrow-mouth portion of the counter bore of the gear housing end face a of the primary speed reducer 10.
The locating pin hole 5 is used for assisting accurate connection between the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20. Specifically, the connection between the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 is achieved through the coupling between the flange 7 protruding from the gear box of the secondary speed reducer 20 and the circular arc slotting segment 7 'arranged on the upper end face of the end cover body 1, so that the precise and reliable connection between the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 is achieved for ensuring the matching degree of the circular arc slotting segment 7' and the flange 7, and the machining precision of the circular arc slotting segment 7 'needs to be ensured when the circular arc slotting segment 7' is machined on the upper end face of the end cover body 1. Therefore, when the arc slotting segment 7 'on the upper end surface of the end cover body 1 is processed, the inner conical ring 2 is firstly installed in the counter bore of the end surface A of the gear box bearing seat of the primary speed reducer 10 in an interference fit mode, then the end cover body 1 is installed in the inner conical ring 2 in a nested mode, the end cover body 1 is fastened to the gear box bearing seat of the primary speed reducer 10 through the tightening bolt 6, at the moment, the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 are mutually positioned through the positioning pin hole 5 and the matched positioning pin, the arc slotting segment 7' is accurately processed on the upper end surface of the end cover body 1 according to the flange 7 protruding from the gear box of the secondary speed reducer 20, and therefore the processing precision of the arc slotting segment 7 'is improved, and the matching degree between the arc radius of the arc slotting segment 7' on the upper end surface of the end cover body 1 and the arc radius of the flange 7 protruding from the gear box of the secondary speed reducer 20 is guaranteed.
The installation process of the sealing end cover for the tilting device gearbox comprises the following steps: firstly, an inner cone ring 2 is installed in a counter bore of the end face A of a gear box bearing seat of a primary speed reducer 10 and is attached to the inner peripheral surface of a wide mouth part of the counter bore; the sealing ring 4 is sleeved in a sealing ring mounting groove 4' on the outer circumferential surface of the bottom of the straight opening part 9 of the end cover body 1; the end cover body 1 is nested and arranged in the inner cone ring 2, so that an outer cone part 8 of the end cover body 1 is positioned at a wide mouth part of a counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10, a straight mouth part 9 of the end cover body 1 is positioned at a narrow mouth part of the counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10, and a sealing ring 4 is attached to the inner peripheral surface of the narrow mouth part of the counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10; then, the tightening bolt 6 is coated with enough sealant and then is inserted into the screw hole 6' to fasten the end cover body 1 to a gear box bearing seat of the primary speed reducer 10, the outer conical surface of the outer conical part 8 of the end cover body 1 and the inner conical surface of the inner conical ring 2 are in seamless fit, and meanwhile, under the action of the tightening bolt 6, the outer conical surface of the outer conical part 8 of the end cover body 1 further compresses the inner conical ring 2, so that the bottom surface of the inner conical ring 2 is compressed with the bottom surface of the wide mouth part of the counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10; finally, after a plurality of cover lifting bolt holes 3 on the end cover body 1 are screwed up by hard oil-resistant rubber screw plugs, the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 are combined, and the connection between the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 is realized through the coupling between a flange 7 protruding from the gear box of the secondary speed reducer 20 and an arc slotting section 7' arranged on the upper end surface of the end cover body 1.
When the sealed end cover for the gear box of the tilting device is required to be disassembled, after the gear box of the primary speed reducer 10 is separated from the gear box of the secondary speed reducer 20, the screw bolt 6 is unscrewed and disassembled, and as the end cover body 1 and the inner cone ring 2 are in conical surface fit, the end cover body 1 can be easily and conveniently disassembled by utilizing the cover lifting bolt holes 3 and the cover lifting bolts matched with the cover lifting bolt holes 3.
Preferably, two cap lifting bolt holes 3 are formed in the outer conical portion 8 of the end cap body 1 at 180 degrees along the circumferential direction.
Preferably, the outer conical surface length of the outer conical portion 8 of the end cover body 1 is larger than the inner conical surface length of the inner conical ring 2, so that if machining errors exist on the inner conical surface of the inner conical ring 2, the machining errors on the inner conical surface of the inner conical ring 2 can be compensated by trimming the outer conical surface of the outer conical portion 8 of the end cover body 1.
Preferably, the outer conical surface of the outer conical part 8 of the end cover body 1 is in interference conical surface fit with the inner conical surface of the inner conical ring 2, and the fit surface between the two is seamless.
Preferably, the upper part of the outer conical surface of the outer conical portion 8 of the end cap body 1 may be a cylindrical straight section.
Preferably, the end cap body 1 is made of steel material.
Preferably, the inner cone ring 2 is made of a latheable elastic material such as polytetrafluoroethylene or hard rubber.
In summary, the sealing end cover for a tilting gear box of the present invention has at least the following technical effects:
firstly, conical surface matching is adopted between the end cover body 1 and the inner conical ring 2, when the end cover body 1 is fastened on a gear box bearing seat of the primary speed reducer 10 through a screwing bolt 6, the outer conical surface of the outer conical part 8 of the end cover body is in seamless matching with the inner conical surface of the inner conical ring 2, and meanwhile, under the action of the screwing bolt 6, the outer conical surface of the outer conical part 8 of the end cover body further presses the inner conical ring 2, so that the sealing reliability of the end cover at the joint of the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 is effectively enhanced; meanwhile, as the outer conical surface of the outer conical part 8 of the end cover body 1 is in interference conical surface fit with the inner conical surface of the inner conical ring 2, the fit surface between the outer conical surface and the inner conical surface is seamless, so that the sealing reliability of the end cover at the joint of the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 is further enhanced; in addition, as the sealing ring 4 is arranged between the outer peripheral surface of the bottom of the straight part 9 of the end cover body 1 and the inner peripheral surface of the narrow part of the counter bore of the end face A of the gear box bearing seat of the primary speed reducer 10, the leakage of lubricating oil in the gear box of the primary speed reducer 10 to the outside of the primary speed reducer 10 through the connecting gap between the end cover body 1 and the tightening bolt 6 can be further prevented.
And secondly, due to the conical surface matching between the end cover body 1 and the inner conical ring 2, the end cover body 1 can be detached more easily and conveniently by using the cover lifting bolt holes 3 and the cover lifting bolts matched with the cover lifting bolt holes 3.
And thirdly, the machining precision of the arc slotting section 7 'on the upper end face of the end cover body 1 can be improved through the positioning pin holes 5 and the positioning pins matched with the positioning pin holes, the matching degree between the arc radius of the arc slotting section 7' and the arc radius of the end face of the flange 7 protruding from the gear box of the secondary speed reducer 20 is ensured, and the accurate connection between the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 is realized.
And fourthly, the length of the outer conical surface of the outer conical part 8 of the end cover body 1 is larger than the length of the inner conical surface of the inner conical ring 2, so that when machining errors exist on the inner conical surface of the inner conical ring 2, the machining errors of the inner conical surface of the inner conical ring 2 can be compensated by trimming the outer conical surface of the outer conical part 8 of the end cover body 1, and the machining manufacturability is good.
Therefore, the sealing end cover for the tilting device gearbox is reliable in structure, simple in processing and manufacturing, convenient and quick to install, convenient to assemble and disassemble and convenient to overhaul, and capable of effectively improving the sealing effect and sealing reliability of the tilting device gearbox, fundamentally solving the problem of oil leakage of the end cover of the tilting device speed reducer gearbox, reducing equipment maintenance cost and avoiding unnecessary economic loss caused by shutdown and production stoppage.
It should be noted that, in this document, the term "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Meanwhile, the term "connected" and the like as used herein should be construed broadly, and may be fixedly connected, detachably connected, directly connected, or indirectly connected through an intermediate member. In this context, "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. are referred to the placed state shown in the drawings.
It should also be noted that the above embodiments are merely for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (4)
1. A seal end cover for tilting device gear box, seal end cover installs primary speed reducer gear box and secondary speed reducer gear box junction in tilting device, its characterized in that, seal end cover for tilting device gear box is including installing the end cover body in the counter bore of primary speed reducer gear box bearing frame terminal surface, install in the counter bore of primary speed reducer gear box bearing frame terminal surface and be in the inner cone ring of end cover body periphery, set up the sealing washer between end cover body bottom outer peripheral face and the counter bore inner peripheral face of primary speed reducer gear box bearing frame terminal surface, and will the end cover body is fastened in the screw bolt of primary speed reducer gear box bearing frame, wherein:
The end face of the bearing seat of the gear box of the primary speed reducer is provided with a stepped hole, the stepped hole is formed by a wide opening part at the upper part and a narrow opening part at the lower part, the end cover body comprises an outer cone part of the end cover body at the upper part and a straight opening part of the end cover body at the lower part, the outer cone part of the end cover body is arranged at the wide opening part of the end face of the bearing seat of the gear box of the primary speed reducer, and the straight opening part of the end cover body is arranged at the narrow opening part of the end face of the bearing seat of the gear box of the primary speed reducer;
The inner cone ring is arranged at the wide opening part of the end face counter bore of the gear box bearing seat of the primary speed reducer, the outer peripheral surface of the inner cone ring is a cylindrical surface and is attached to the inner peripheral surface of the wide opening part of the end face counter bore of the gear box bearing seat of the primary speed reducer, the inner peripheral surface of the inner cone ring is an inner cone surface with wide upper part and narrow lower part, the outer peripheral surface of the outer cone part of the end cover body is an outer cone surface matched with the inner cone surface of the inner cone ring, and the outer cone part of the end cover body is nested and arranged in the inner cone ring;
The outer cone part of the end cover body is provided with a plurality of cover lifting bolt holes, a plurality of positioning bolt holes and a plurality of screw holes along the circumferential direction, the upper end surface of the outer cone part of the end cover body is provided with an arc slotting section, and the outer circumferential surface of the bottom of the straight part of the end cover body is provided with a sealing ring mounting groove;
The sealing ring is sleeved in a sealing ring mounting groove on the outer peripheral surface of the bottom of the straight opening part of the end cover body and is arranged between the outer peripheral surface of the bottom of the straight opening part of the end cover body and the inner peripheral surface of the narrow opening part of the end face counter bore of the gear box bearing seat of the primary speed reducer;
the arc radius of the arc slotting section on the upper end surface of the outer cone part of the end cover body is matched with the arc radius of the end surface of the flange which is convexly arranged on the gear box of the secondary speed reducer;
The length of the outer conical surface of the outer conical part of the end cover body is longer than the length of the inner conical surface of the inner conical ring;
the upper part of the outer conical surface of the outer conical part of the end cover body is a cylindrical straight section.
2. The seal head for a tilting gear case according to claim 1, wherein two of the cap-opening bolt holes are formed in an outer cone portion of the head cover body at 180 degrees in a circumferential direction.
3. The seal end cap for a tilting device gearbox of claim 1 wherein the outer conical surface of the outer conical portion of the end cap body is an interference conical surface fit with the inner conical surface of the inner conical ring.
4. A seal end cover for a tilting device gearbox according to any of claims 1 to 3, wherein said end cover body is made of steel material and said inner cone ring is made of polytetrafluoroethylene or hard rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110494308.6A CN113187880B (en) | 2021-05-07 | 2021-05-07 | Sealing end cover for tilting device gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110494308.6A CN113187880B (en) | 2021-05-07 | 2021-05-07 | Sealing end cover for tilting device gear box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113187880A CN113187880A (en) | 2021-07-30 |
| CN113187880B true CN113187880B (en) | 2024-05-07 |
Family
ID=76983993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110494308.6A Active CN113187880B (en) | 2021-05-07 | 2021-05-07 | Sealing end cover for tilting device gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113187880B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671852A (en) * | 2012-09-13 | 2014-03-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | High-speed gearbox sealing device and high-speed gearbox with same |
| CN107165945A (en) * | 2017-07-24 | 2017-09-15 | 江苏新瑞齿轮系统有限公司 | A kind of gear-box and bearing sealing device |
| CN108547937A (en) * | 2018-07-09 | 2018-09-18 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of gear train assembly and low-floor light rail vehicle |
| CN209604522U (en) * | 2019-01-25 | 2019-11-08 | 太原重工股份有限公司 | The sealing device of secondary reducer for Tilting Device of Converter |
| WO2021007793A1 (en) * | 2019-07-17 | 2021-01-21 | 成都中车电机有限公司 | Bearing sealing structure of traction electric motor, and mounting method |
| CN215487562U (en) * | 2021-05-07 | 2022-01-11 | 太原重工股份有限公司 | Sealing end cover for tilting device gear box |
-
2021
- 2021-05-07 CN CN202110494308.6A patent/CN113187880B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671852A (en) * | 2012-09-13 | 2014-03-26 | 南车戚墅堰机车车辆工艺研究所有限公司 | High-speed gearbox sealing device and high-speed gearbox with same |
| CN107165945A (en) * | 2017-07-24 | 2017-09-15 | 江苏新瑞齿轮系统有限公司 | A kind of gear-box and bearing sealing device |
| CN108547937A (en) * | 2018-07-09 | 2018-09-18 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of gear train assembly and low-floor light rail vehicle |
| CN209604522U (en) * | 2019-01-25 | 2019-11-08 | 太原重工股份有限公司 | The sealing device of secondary reducer for Tilting Device of Converter |
| WO2021007793A1 (en) * | 2019-07-17 | 2021-01-21 | 成都中车电机有限公司 | Bearing sealing structure of traction electric motor, and mounting method |
| CN215487562U (en) * | 2021-05-07 | 2022-01-11 | 太原重工股份有限公司 | Sealing end cover for tilting device gear box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113187880A (en) | 2021-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215487562U (en) | Sealing end cover for tilting device gear box | |
| CN113187880B (en) | Sealing end cover for tilting device gear box | |
| CN214367655U (en) | Split type sealing device of speed reducer | |
| CN206419350U (en) | A kind of graphite bearing component | |
| CN206536270U (en) | A kind of numerical control gantry machining center separate type gear-box | |
| CN215949916U (en) | Fan main shaft bearing seal structure suitable for online replacement | |
| CN220435150U (en) | The method comprises the following steps of: convenient to overhaul hydraulic cylinder of (a) | |
| CN216201089U (en) | Oil-leakage-proof sealing cover for auxiliary connecting cylinder and auxiliary connecting valve rod | |
| CN214499807U (en) | Deep groove ball bearing | |
| CN215334015U (en) | Novel coal feeder driving wheel bearing seat external member | |
| CN218408448U (en) | Oil seal seat for recovering shaft end sealing | |
| CN216589868U (en) | Sealing structure for output end of yaw gearbox | |
| CN210338038U (en) | Steering control valve | |
| CN217450384U (en) | Grinding roller mounting structure | |
| CN218913656U (en) | Large and medium speed reducer observation window | |
| CN219102030U (en) | Sealing ring lubricating device of internal mixer | |
| CN203421174U (en) | Assembly type open oil seal | |
| CN220566581U (en) | Labyrinth end cover wear-resistant structure | |
| CN211648495U (en) | Upper connecting structure of submerged sewage pump | |
| CN219712267U (en) | Quick mounting structure of shafting part | |
| CN214036532U (en) | Bearing end cover assembly | |
| CN215673610U (en) | Labyrinth sealing device for vibrator of vibrating feeder | |
| CN212252036U (en) | Multi-purpose embedded oil cup structure at end part of underwater shaft | |
| CN217234310U (en) | Small gear assembly with locking ring for gyratory crusher | |
| CN209458378U (en) | A kind of marine gear box body |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |