CN215487562U - Sealing end cover for tilting device gear box - Google Patents
Sealing end cover for tilting device gear box Download PDFInfo
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- CN215487562U CN215487562U CN202120957865.2U CN202120957865U CN215487562U CN 215487562 U CN215487562 U CN 215487562U CN 202120957865 U CN202120957865 U CN 202120957865U CN 215487562 U CN215487562 U CN 215487562U
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- end cover
- gear box
- cover body
- speed reducer
- peripheral surface
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Abstract
The utility model 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 surface of a bearing seat of a gear box of a primary speed reducer, an inner cone ring arranged in the counter bore and positioned at the periphery of the end cover body, a sealing ring arranged between the outer peripheral surface of the bottom of the end cover body and the inner peripheral surface of the counter bore, and a tightening bolt for fastening the end cover body on the bearing seat of the gear box of the primary speed reducer. The sealing end cover structure can effectively improve the sealing effect and the sealing reliability of the gear box of the tilting device, solves the problem of oil leakage of the end cover of the gear box of the speed reducer of the tilting device, and reduces the maintenance cost of equipment.
Description
Technical Field
The utility model belongs to the technical field of gearbox sealing, and particularly relates to a sealing end cover for a tilting device gearbox.
Background
As shown in fig. 1 and 2, in order to ensure that an end cover 30 at the connection between a gear box of a primary speed reducer 10 and a gear box of a secondary speed reducer 20 in a tilting device on converter steelmaking equipment is convenient to disassemble and assemble, a sufficient gap S needs to be left between the end cover 30 and a counter bore on the end face of a 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 spraying forced lubricating mode, the meshing area is just positioned at the position where the output shaft of the primary speed reducer penetrates through the hole of the secondary speed reducer, along with the rotation of the gear shaft and the gear and the continuous process of splashing lubrication, 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 and at the position where a legal flange 40 is positioned, so that the lubricating oil is splashed 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 to cause oil leakage. In addition, along with the operation of the output shaft of the primary speed reducer, the service life of the oil seal 50 for sealing lubricating oil in the gear box of the primary speed reducer at the output shaft is reduced, the sealing reliability is reduced, therefore, the lubricating oil in the gear box of the primary speed reducer passes through the bearing and enters the cavity area of the connection part of the primary speed reducer and the secondary speed reducer through the oil seal 50, and the lubricating oil in the area enters the gap S in the circumferential direction of the end cover along with 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 is generated. Although the sealing reliability of the end cover is improved to a certain extent by improving the surface precision and the smoothness of the matching part of the end cover 30 and the end face of the bearing seat of the gear box and filling sealing glue or other adhesive tapes in the gap S in the prior art, the problem of oil leakage of the end cover of the gear box of the speed reducer of the tilting device is fundamentally solved, sometimes, in order to treat the oil leakage, equipment needs to be shut down and overhauled, which undoubtedly increases the maintenance cost of the equipment and even causes unnecessary economic loss due to shutdown and production stoppage.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems in the prior art, the present invention provides a sealing end cap for a gear box of a tilting device, the sealing end cap is installed at a connection between a primary speed reducer gear box and a secondary speed reducer gear box in the tilting device, and comprises an end cap body installed in a counter bore of a bearing seat end surface of the primary speed reducer gear box, an inner cone ring installed in the counter bore of the bearing seat end surface of the primary speed reducer gear box and positioned at the periphery of the end cap body, a sealing ring arranged between the outer peripheral surface of the bottom of the end cap body and the inner peripheral surface of the counter bore of the bearing seat end surface of the primary speed reducer gear box, and a tightening bolt for fastening the end cap body to the bearing seat of the primary speed reducer gear box, wherein:
the end cover body comprises an upper end cover body external cone part and a lower end cover body straight opening part, the end cover body external cone part is arranged at the wide opening part of the end face counter bore of the primary speed reducer gearbox bearing seat, and the end cover body straight opening part is arranged at the narrow opening part of the end face counter bore of the primary speed reducer gearbox bearing seat;
the inner cone ring is arranged at the wide opening part of the end face counter bore of the primary speed reducer gearbox bearing seat, 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 primary speed reducer gearbox bearing seat, the inner peripheral surface of the inner cone ring is an inner cone surface which is wide at the top and narrow at the bottom, the outer peripheral surface of the outer cone part of the end cover body is an outer cone surface which is matched with the inner cone surface of the inner cone ring, and the outer cone part of the end cover body is nested in the inner cone ring.
Preferably, in the above-mentioned end cover for a gearbox of a tilting device, a plurality of cover opening bolt holes, a plurality of positioning pin holes and a plurality of screw holes are formed in the outer cone portion of the end cover body along the circumferential direction, an arc grooving section is arranged on the upper end surface of the outer cone portion of the end cover body, and a sealing ring mounting groove is formed in the outer peripheral surface of the bottom of the straight opening portion of the end cover body.
Preferably, in the seal end cover for the gearbox of the tilting device, the seal ring is sleeved in a seal ring mounting groove on the outer peripheral surface of the bottom of the straight opening part of the end cover body and is mounted 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 counterbore on the end surface of the bearing seat of the gearbox of the primary speed reducer.
Preferably, in the above-described end cover for a tilting device gear box, an arc radius of the arc groove section on the upper end face of the outer tapered portion of the end cover body and an end face arc radius of a flange provided to protrude from the secondary reducer gear box are matched with each other.
Preferably, in the seal end cover for a gearbox of a tilting device, two cover lifting bolt holes are formed in an outer cone portion of the end cover body at an angle of 180 degrees along the circumferential direction.
Preferably, in the above-described end cap for a tilter gearbox, the end cap body has an outer tapered surface length of the outer tapered portion that is greater than an inner tapered surface length of the inner tapered ring.
Preferably, in the above sealing end cover for a gearbox of a tilting device, the upper part of the external conical surface of the external conical part of the end cover body is a cylindrical straight section.
Preferably, in the above sealing end cover for a gearbox of a tilting device, an interference conical surface fit is formed between an external conical surface of the external conical part of the end cover body and an internal conical surface of the internal conical ring.
Preferably, in the above-described end cover for a gearbox of a tilting device, the end cover body is made of a steel material, and the inner cone ring is made of teflon or hard rubber.
The sealing end cover for the tilting device gear box is reliable in structure, simple to process and manufacture, convenient and quick to install, convenient to disassemble, assemble and maintain, capable of effectively improving the sealing effect and the sealing reliability of the tilting device gear box, and fundamentally solving the problem of oil leakage of the end cover of the tilting device speed reducer gear box, so that the equipment maintenance cost is reduced, and unnecessary economic loss caused by shutdown and production halt is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a tilting device of a converter steelmaking apparatus.
FIG. 2 is a schematic view of a prior art end cap for a tilter gear case.
Fig. 3 is a schematic structural view of a seal cover for a tilter gear case of the present invention.
Fig. 4 is a schematic view of the structure of the end cover body in the sealed end cover for the tilting device gear case of the present invention.
Fig. 5 is a top schematic view of the end cap body of fig. 4.
Description of reference numerals:
10-a primary speed reducer, 20-a secondary speed reducer, 30-an end cover, 40-a handle flange and 50-an oil seal;
1-an end cover body, 2-an inner conical ring, 3-a cover lifting bolt hole, 4-a sealing ring, 4 ' -a sealing ring installation groove, 5-a positioning pin hole, 6-a tightening bolt, 6 ' -a screw hole, 7-a flange, 7 ' -an arc grooving section, 8-an end cover body outer conical part, 9-an end cover body straight opening 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 with reference to the specific embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 3, 4 and 5, the sealing end cover for the gear box of the tilting device of the utility model is arranged at the joint of the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 in the tilting device, and comprises an end cover body 1 arranged in a counter bore of the end surface a of the bearing seat of the gear box of the primary speed reducer 10, an inner cone ring 2 arranged in a counter bore of the end surface a of the bearing seat of the gear box of the primary speed reducer 10 and positioned at the periphery of the end cover body 1, a sealing ring 4 arranged between the outer peripheral surface of the bottom of the end cover body 1 and the inner peripheral surface of the counter bore of the end surface a of the bearing seat of the gear box of the primary speed reducer 10, and a tightening bolt 6 for fastening the end cover body 1 to the bearing seat of the gear box of the primary speed reducer 10.
The counter bore of the end surface A of the bearing seat of the gear box 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 external cone part 8 and a lower end cover body straight opening part 9, the end cover body external cone part 8 is installed at a wide opening part of a primary speed reducer 10 gear box bearing seat end surface A counter bore, and the end cover body straight opening part 9 is installed at a narrow opening part of the primary speed reducer 10 gear box bearing seat end surface A counter bore. The inner cone ring 2 is arranged at the wide opening part of the counterbore at the end surface A of the gear box bearing seat of the primary speed reducer 10, 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 counterbore at the end surface 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 top and a narrow bottom, and the outer peripheral surface of the end cover body outer cone portion 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 end cover body outer cone portion 8 of the end cover body 1 is nested 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 arranged on the outer cone part 8 of the end cover body 1 along the circumferential direction, and an arc grooving section 7' is arranged on the upper end surface of the outer cone part 8 of the end cover body 1. In addition, the outer peripheral surface of the bottom of the cap body straight opening portion 9 of the cap body 1 is provided with a packing ring mounting groove 4'.
The cap opening 3 functions to facilitate the detachment operation of the cap body 1 through the cap opening 3 and the cap opening bolt fitted to the cap opening 3.
The screw holes 6 'are used for fastening the end cover body 1 to the gear box bearing seat of the primary speed reducer 10 by inserting the tightening bolts 6 into the screw holes 6'.
The seal ring mounting groove 4' is used for mounting the seal ring 4 between the outer peripheral surface of the bottom of the end cover body 1 and the inner peripheral surface of the counter bore of the gear box bearing seat end surface a of the primary speed reducer 10, more specifically, mounting the seal ring 4 between the outer peripheral surface of the bottom of the end cover body straight opening part 9 of the end cover body 1 and the inner peripheral surface of the counter bore of the gear box bearing seat end surface a of the primary speed reducer 10.
The positioning 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. Particularly, the connection between the primary speed reducer 10 gear box and the secondary speed reducer 20 gear box is realized through the coupling between the flange 7 protruding from the secondary speed reducer 20 gear box and the circular arc grooving section 7 'arranged on the upper end surface of the end cover body 1, so as to ensure the matching degree of the circular arc grooving section 7' and the flange 7 to realize the accurate and reliable connection between the primary speed reducer 10 gear box and the secondary speed reducer 20 gear box, and the processing precision of the circular arc grooving section 7 'needs to be ensured when the circular arc grooving section 7' is processed on the upper end surface of the end cover body 1. For this purpose, when processing the arc grooving section 7' on the upper end surface of the end cover body 1, the inner cone ring 2 is firstly installed in the counter bore of the bearing seat end surface A of the gear box of the primary speed reducer 10 in an interference fit manner, then the end cover body 1 is nested and installed in the inner cone ring 2, the end cover body 1 is fastened on a bearing seat of a gear box of the primary speed reducer 10 by screwing a bolt 6, the gear box of the primary speed reducer 10 and the gear box of the secondary speed reducer 20 are mutually positioned by a positioning pin hole 5 and a positioning pin matched with the positioning pin hole, an arc-shaped groove section 7' is accurately processed on the upper end surface of the end cover body 1 according to a flange 7 protruding from the gear box of the secondary speed reducer 20, thereby improving the processing precision of the arc grooving section 7 'and ensuring the matching degree between the arc radius of the arc grooving section 7' on the upper end surface of the end cover body 1 and the arc radius of the end surface of the flange 7 protruding from the gear box of the secondary speed reducer 20.
The installation process of the sealing end cover for the gear box of the tilting device comprises the following steps: firstly, mounting an inner cone ring 2 into a counter bore of the end surface A of a bearing seat of a gearbox of a primary speed reducer 10 and attaching the inner cone ring to the inner circumferential surface of a wide opening part of the counter bore; the sealing ring 4 is sleeved in a sealing ring mounting groove 4' on the outer peripheral surface of the bottom of the end cover body straight opening part 9 of the end cover body 1; then the end cover body 1 is nested and installed in the inner conical ring 2, so that the outer conical part 8 of the end cover body 1 of the end cover body is positioned at the wide opening part of the counter bore of the end face A of the gearbox bearing seat of the primary speed reducer 10, the straight opening part 9 of the end cover body 1 of the end cover body is positioned at the narrow opening part of the counter bore of the end face A of the gearbox bearing seat of the primary speed reducer 10, and the sealing ring 4 is attached to the inner circumferential surface of the narrow opening part of the counter bore of the end face A of the gearbox bearing seat of the primary speed reducer 10; then, the tightening bolts 6 are coated with enough sealant and then inserted into the screw holes 6' to fasten the end cover body 1 on the primary speed reducer 10 gearbox bearing seat, the outer conical surface of the end cover body outer conical part 8 of the end cover body 1 is in seamless fit with the inner conical surface of the inner conical ring 2, and simultaneously, under the action of the tightening bolts 6, the outer conical surface of the end cover body 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 opening part of the end surface A counter bore of the primary speed reducer 10 gearbox bearing seat; and finally, after a plurality of cover opening bolt holes 3 on the end cover body 1 are screwed up by hard oil-resistant rubber screw plugs, the primary speed reducer 10 gear box and the secondary speed reducer 20 gear box are combined, and the connection between the primary speed reducer 10 gear box and the secondary speed reducer 20 gear box is realized through the coupling between a flange 7 which is convexly arranged on the secondary speed reducer 20 gear box and an arc grooving section 7' which is arranged on the upper end surface of the end cover body 1.
When the sealing end cover for the gear box of the tilting device is required to be disassembled, the gear box of the primary speed reducer 10 is separated from the gear box of the secondary speed reducer 20, and the screwing bolt 6 is unscrewed and disassembled, and the end cover body 1 can be easily and conveniently disassembled by utilizing the cover-opening bolt hole 3 and the cover-opening bolt matched with the cover-opening bolt hole 3 due to the conical surface fit between the end cover body 1 and the inner conical ring 2.
Preferably, two cover opening bolt holes 3 are formed on the outer cone portion 8 of the end cover body 1 at 180 degrees along the circumferential direction.
Preferably, the end cap body external taper portion 8 of the end cap body 1 has an external taper surface length greater than the internal taper surface length of the internal taper ring 2, so that if there is a machining error in the internal taper surface of the internal taper ring 2, the machining error in the internal taper surface of the internal taper ring 2 can be compensated by trimming the external taper surface of the end cap body external taper portion 8 of the end cap body 1.
Preferably, 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 interference conical surface fit, and the fit surface between the two is seamless.
Preferably, the outer conical surface upper part of the outer conical part 8 of the end cover body 1 can 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 flexible material that can be turned, such as teflon or hard rubber.
In summary, the sealing end cover for the gearbox of the tilting device has at least the following technical effects:
the end cover body 1 and the inner cone ring 2 are in conical surface fit, when the end cover body 1 is fastened on a bearing seat of the primary speed reducer 10 gearbox through a tightening bolt 6, the outer conical surface of the outer cone 8 of the end cover body is in seamless fit with the inner conical surface of the inner cone ring 2, and meanwhile, under the action of the tightening bolt 6, the outer conical surface of the outer cone 8 of the end cover body further compresses the inner cone ring 2, so that the sealing reliability of the end cover at the joint of the primary speed reducer 10 gearbox and the secondary speed reducer 20 gearbox is effectively enhanced; meanwhile, 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 fitting surface between the outer conical surface and the inner conical surface is seamless, so that the sealing reliability of the end cover at the connecting part 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, because the sealing ring 4 is arranged between the outer peripheral surface of the bottom of the straight opening part 9 of the end cover body 1 and the inner peripheral surface of the narrow opening part of the counter bore of the gear box bearing seat end surface A of the primary speed reducer 10, lubricating oil in the gear box of the primary speed reducer 10 can be further prevented from leaking to the outside of the primary speed reducer 10 through a connecting gap between the end cover body 1 and the tightening bolt 6.
And (II) because the end cover body 1 and the inner cone ring 2 are in conical surface fit, the end cover body 1 can be more easily and conveniently disassembled by utilizing the cover opening bolt holes 3 and the cover opening bolts matched with the cover opening bolt holes 3.
And thirdly, through the positioning pin holes 5 and the positioning pins matched with the positioning pin holes, the processing precision of the arc grooving section 7 'on the upper end surface of the end cover body 1 can be improved, the matching degree between the arc radius of the arc grooving section 7' and the end surface arc radius of the flange 7 protruding from the secondary speed reducer 20 gear box is ensured, and the accurate connection between the primary speed reducer 10 gear box and the secondary speed reducer 20 gear box is realized.
And fourthly, the length of the outer conical surface of the outer conical part 8 of the end cover body 1 is greater than that of the inner conical surface of the inner conical ring 2, so that when the inner conical surface of the inner conical ring 2 has machining errors, 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 end cover body has good machining manufacturability.
Therefore, the sealing end cover for the gear box of the tilting device is reliable in structure, simple to process and manufacture, convenient and quick to install, convenient to disassemble, assemble and maintain, capable of effectively improving the sealing effect and the sealing reliability of the gear box of the tilting device, and capable of fundamentally solving the problem of oil leakage of the end cover of the gear box of the speed reducer of the tilting device, so that the equipment maintenance cost is reduced, and unnecessary economic loss caused by shutdown and production halt is avoided.
It is to be noted that, in this document, the term "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion, so that an article or an apparatus including a series of elements includes not only those elements but also other elements not explicitly listed or inherent to such article or apparatus. Meanwhile, the term "connected" and the like as used herein should be broadly interpreted as referring to a fixed connection, a detachable connection, a direct connection, or an indirect connection through intermediate components. In addition, "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like are referred to herein as being placed in the state shown in the drawings.
It should be further noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and are not limited thereto; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or alterations do not depart from the spirit of the utility model.
Claims (9)
1. The utility model provides a sealing end cover for tilting device gear box, sealing end cover installs in tilting device primary reducer gear box and secondary reducer gear box junction, its characterized in that, sealing end cover for tilting device gear box includes the end cover body of installing in the counter bore of primary reducer gear box bearing frame terminal surface, install in the counter bore of primary reducer gear box bearing frame terminal surface and be in the interior taper ring of end cover body periphery, set up the sealing washer between the outer peripheral surface of end cover body bottom and the counter bore inner peripheral surface of primary reducer gear box bearing frame terminal surface, and fasten the end cover body in the tightening bolt of primary reducer gear box bearing frame, wherein:
the end cover body comprises an upper end cover body external cone part and a lower end cover body straight opening part, the end cover body external cone part is arranged at the wide opening part of the end face counter bore of the primary speed reducer gearbox bearing seat, and the end cover body straight opening part is arranged at the narrow opening part of the end face counter bore of the primary speed reducer gearbox bearing seat;
the inner cone ring is arranged at the wide opening part of the end face counter bore of the primary speed reducer gearbox bearing seat, 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 primary speed reducer gearbox bearing seat, the inner peripheral surface of the inner cone ring is an inner cone surface which is wide at the top and narrow at the bottom, the outer peripheral surface of the outer cone part of the end cover body is an outer cone surface which is matched with the inner cone surface of the inner cone ring, and the outer cone part of the end cover body is nested in the inner cone ring.
2. The end cover for the gearbox of the tilting device according to claim 1, wherein a plurality of cover opening bolt holes, a plurality of positioning pin holes and a plurality of screw holes are formed in the outer conical portion of the end cover body in the circumferential direction, an arc-shaped grooved section is formed in the upper end surface of the outer conical portion of the end cover body, and a seal ring mounting groove is formed in the outer peripheral surface of the bottom of the straight opening portion of the end cover body.
3. The end cap of claim 2, wherein the seal ring is fitted in a seal ring mounting groove formed in the outer peripheral surface of the bottom of the straight port of the end cap body and is mounted between the outer peripheral surface of the bottom of the straight port of the end cap body and the inner peripheral surface of the narrow port of the counter bore of the end face of the bearing seat of the primary reduction gear box.
4. The end cover for the gearbox of the tilting device according to claim 2, characterized in that the arc radius of the arc groove section on the upper end surface of the outer conical part of the end cover body is matched with the arc radius of the end surface of the flange convexly arranged on the gearbox of the secondary speed reducer.
5. The end cap according to claim 2, wherein two cap opening bolt holes are formed in the outer cone portion of the end cap body at 180 degrees in the circumferential direction.
6. The end cap seal for a tilter gear box of any of claims 1-5, wherein the end cap body outer cone portion has an outer cone surface length greater than an inner cone surface length of the inner cone ring.
7. The end closure for a tilter gearbox of claim 6, wherein the upper portion of the external conical surface of the external conical section of the end closure body is a cylindrical straight section.
8. The end cap seal for a tilter gear box of any of claims 1-5, wherein an interference taper fit is provided between the outer taper of the outer tapered portion of the end cap body and the inner taper of the inner tapered ring.
9. The end closure for a tilter gear box of any of claims 1-5, wherein the end closure body is made of steel material and the inner cone ring is made of polytetrafluoroethylene or hard rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120957865.2U CN215487562U (en) | 2021-05-07 | 2021-05-07 | Sealing end cover for tilting device gear box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120957865.2U CN215487562U (en) | 2021-05-07 | 2021-05-07 | Sealing end cover for tilting device gear box |
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| CN215487562U true CN215487562U (en) | 2022-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187880A (en) * | 2021-05-07 | 2021-07-30 | 太原重工股份有限公司 | Sealing end cover for tilting device gear box |
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2021
- 2021-05-07 CN CN202120957865.2U patent/CN215487562U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187880A (en) * | 2021-05-07 | 2021-07-30 | 太原重工股份有限公司 | Sealing end cover for tilting device gear box |
| CN113187880B (en) * | 2021-05-07 | 2024-05-07 | 太原重工股份有限公司 | Sealing end cover for tilting device gear box |
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