CN219827487U - Axle body sealing mechanism, wheel set for crane and crane - Google Patents
Axle body sealing mechanism, wheel set for crane and crane Download PDFInfo
- Publication number
- CN219827487U CN219827487U CN202321381233.1U CN202321381233U CN219827487U CN 219827487 U CN219827487 U CN 219827487U CN 202321381233 U CN202321381233 U CN 202321381233U CN 219827487 U CN219827487 U CN 219827487U
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- China
- Prior art keywords
- ring
- bushing
- cover
- shaft
- wheel
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- 238000007789 sealing Methods 0.000 title claims abstract description 73
- 230000000903 blocking effect Effects 0.000 claims description 22
- 230000007423 decrease Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000003746 surface roughness Effects 0.000 claims description 4
- 230000008094 contradictory effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 239000004519 grease Substances 0.000 abstract description 14
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 9
- 230000001050 lubricating effect Effects 0.000 description 9
- 239000000428 dust Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 229920005560 fluorosilicone rubber Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Sealing Devices (AREA)
Abstract
Compared with the prior art, the shaft body sealing mechanism disclosed by the utility model comprises the following components: a wheel axle; a wheel body; bearings provided at both ends of the wheel shaft; a bearing seat; the bush is sleeved on the outer side of the wheel shaft, one end of the bush is abutted against the wheel body, and the other end of the bush is abutted against the bearing; the end cover is arranged on the bearing seat at the end part of the wheel shaft; the through cover is arranged on the bearing seat and is positioned opposite to the end cover; a sealing device arranged between the through cover and the bushing; the inner side of the through cover, which is close to the wheel shaft, is provided with a groove hole site, and the groove hole site is an annular cavity; the sealing device comprises: a seal ring body; the adjusting body is detachably arranged on the through cover and is in threaded connection with the through cover, and one end of the adjusting body is used for abutting against the pressing sealing ring body. Compared with the prior art, the scheme of the utility model is not easy to leak grease and does not need frequent maintenance, so that the environmental pollution caused by the leaked grease is reduced.
Description
Technical Field
The utility model relates to the technical field of hoisting machinery equipment, in particular to a shaft body sealing mechanism, a wheel set for a crane and the crane.
Background
At present, the sealing of the bearing positions of wheel sets used on various cranes such as portal cranes, bridge cranes, container portal cranes, shore container cranes and the like is mostly realized by arranging felt ring oil seals (JB/ZQ 4606) at the positions, which are contacted with the axle journals, on end covers at the two ends of the bearings, and the oil seals are characterized by self structure, and after the crane equipment is used for a period of time, lubricating grease filled at the bearing positions leaks out from the felt ring oil seals arranged at the positions, which are contacted with the axle journals, on the end covers.
With the increase of the environmental temperature and the increase of the use frequency of the use site of the hoisting equipment, leakage gradually increases, so that a large amount of lubricating grease is wasted and the maintenance frequency is increased, the use cost is increased, and the use efficiency of the equipment is reduced. Meanwhile, leaked lubricating grease can leak in a working area of the lifting equipment along with the movement of the lifting equipment, so that the cleaning is troublesome and the environment is polluted.
Therefore, how to provide a shaft body sealing mechanism which is not easy to leak grease and does not need frequent maintenance, and reduces environmental pollution caused by the leaked grease has become a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a shaft body sealing mechanism which is not easy to leak lubricating grease and does not need frequent maintenance, and reduces environmental pollution caused by the leaked lubricating grease.
The technical scheme provided by the utility model is as follows:
the utility model provides a shaft body sealing mechanism, comprising: a shaft body; a bushing sleeved on the shaft body; a through cover penetrating the outer side of the bushing; a sealing device disposed between the through cap and the bushing; the through cover is provided with a slot hole site close to the inner side of the shaft body, and the slot hole site is an annular cavity; the sealing device comprises: the sealing ring body is arranged in the slot position, and one end of the sealing ring body is abutted against the inner wall of one end of the slot position; the detachable adjusting body that sets up on the logical lid, the adjusting body with logical lid threaded connection, the one end of adjusting body is used for contradicting to sticis the sealing washer body.
Further, in a preferred mode of the utility model, a hole groove is arranged on the annular inner wall of the through cover, the hole groove is positioned at one side of the slot position, and the hole groove is an annular groove facing the shaft body; the sealing device further comprises: and the inner ring of the blocking ring is in interference connection with the bushing.
Further, in a preferred mode of the present utility model, the seal ring body includes: the inner ring part is used for abutting against the outer wall of the bushing, and a plurality of annular bulges are arranged on the inner wall of the inner ring part; an outer ring portion for abutting against the through cover slot wall; a joint portion for connecting the same side ends of the inner ring portion and the outer ring portion; a ring groove portion interposed between the inner ring portion and the outer ring portion and opposite to the joint portion, the ring groove portion being open toward the adjuster; the sealing ring body is abutted against the inner wall of one end of the slot hole position of the through cover through the combining part.
Further, in a preferred mode of the present utility model, the sealing device further includes: the pressing block is in wedge fit and abutting connection with the ring groove part, and one end of the pressing block is in abutting connection with the adjusting body; and the retainer is arranged at the bottom of the ring groove part and is used for elastically supporting the pressing block.
Further, in a preferred mode of the present utility model, the inner ring diameter of the blocking ring is 0.5-1mm smaller than the outer ring diameter of the bushing; the blocking ring is made of flexible wear-resistant oil-resistant materials. Further, the blocking ring may be a blocking ring made of nitrile rubber, fluororubber, acrylate rubber, fluorosilicone rubber, or the like.
Further, in a preferred mode of the present utility model, the diameters of the inner rings of the plurality of annular projections gradually increase or gradually decrease from the joint portion end toward the ring groove portion end; the diameter of the inner ring part is 0.3-2mm smaller than the diameter of the outer circle of the bushing.
Further, in a preferred mode of the utility model, the cross section of the ring groove part is of a V-shaped structure with large outside and small inside; the top pressing block is of a wedge-shaped structure.
Further, in a preferred mode of the present utility model, the surface roughness value of the contact section of the bushing with the sealing device is one of RA0.8, RA1.6, RA 3.2; the bushing has an outer diameter dimension that is 0.1-0.5mm greater than the base dimension.
In addition, the utility model also provides a wheel set for a crane, which comprises: the shaft body sealing mechanism; the shaft body is used as a wheel shaft; the wheel body is arranged in the middle of the wheel shaft; bearings provided at both ends of the wheel shaft; the bearing seat is used for supporting and mounting the bearing; the end cover is arranged on the bearing seat and positioned at the axle end side of the wheel; the through cover is arranged on the bearing seat and opposite to the end cover, one end of the bushing is abutted against the wheel body, and the other end of the bushing is abutted against the bearing.
In addition, the utility model also provides a crane, comprising: the shaft body sealing mechanism.
Compared with the prior art, the shaft body sealing mechanism provided by the utility model comprises the following components: a shaft body; a bushing sleeved on the shaft body; a through cover penetrating the outer side of the bushing; a sealing device disposed between the through cap and the bushing; the through cover is provided with a slot hole site close to the inner side of the shaft body, and the slot hole site is an annular cavity; the sealing device comprises: the sealing ring body is arranged in the slot position, and one end of the sealing ring body is abutted against the inner wall of one end of the slot position; the detachable adjusting body that sets up on the logical lid, the adjusting body with logical lid threaded connection, the one end of adjusting body is used for contradicting to sticis the sealing washer body. According to the technical scheme, the blocking ring sleeved on the outer circular surface of the bushing can block lubricating grease at the bearing part in a first layer, meanwhile, foreign matters such as abrasive dust and impurities generated by the bearing and related parts are blocked due to rotation of the bearing, so that the entering of the lubricating grease, abrasive dust and impurities into a sealing ring body area is reduced, the overall sealing performance of the wheel set is improved, a plurality of annular bulges are arranged on the annular wall of the inner ring part of the sealing ring body, the diameters of the annular bulges of the inner ring part are gradually increased or gradually reduced from one end to the other end, the inner ring part is in multi-point contact with the bushing contact area and in gradient contact, the sealing stability and reliability are further ensured, and the contact effect of the annular wall of the inner ring part of the sealing ring body and the bushing can be adjusted according to actual use conditions through the pressing block and the adjusting body, for achieving a good sealing effect, for example, when the annular wall of the inner ring part of the sealing ring body and the bushing are leaked from the position, the good contact effect of the sealing ring part can be realized through adjusting the adjusting body, and in addition, the good sealing effect of the elastic retaining part can be ensured under the action of the elastic pressing block and the sealing ring groove contact effect of the annular groove contact part is ensured, and the stable sealing performance of the sealing ring groove is ensured.
Drawings
In order to more clearly illustrate the embodiments of the utility model 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 utility model, 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 cross-sectional view of a shaft seal mechanism provided by an embodiment of the present utility model;
FIG. 2 is an enlarged partial schematic view of FIG. 1A;
FIG. 3 is an enlarged partial schematic view of FIG. 1B;
fig. 4 is a schematic structural diagram of a through cover in an embodiment of the present utility model.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present utility model, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "first," "second," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the utility model.
As shown in fig. 1 to 4, a shaft body sealing mechanism provided in an embodiment of the present utility model includes: a shaft body 2; a bushing 6 sleeved on the shaft body 2; a through cover 3 penetrating the outer side of the lining 6; a sealing means 8 arranged between said through cover 3 and said bushing 6; the through cover 3 is provided with a slot hole site 31 near the inner side of the shaft body 2, and the slot hole site 31 is an annular cavity; the sealing device 8 comprises: the sealing ring body 82 is arranged in the slot hole position 31, and one end of the sealing ring body 82 is abutted against the inner wall of one end of the slot hole position 31; the detachable adjusting body 85 arranged on the through cover 3, the adjusting body 85 is in threaded connection with the through cover 3, and one end of the adjusting body 85 is pressed against the sealing ring body 82 through the pressing block 84.
Specifically, in the embodiment of the present utility model, a hole groove 32 is formed on the annular inner wall of the through cover 3, the hole groove 32 is located at one side of the slot hole position 31, and the hole groove 32 is an annular groove facing the shaft body 2; the sealing device 8 further comprises: and the blocking ring 81 is arranged on the hole groove 32, and the inner ring of the blocking ring 81 is in interference connection with the bushing 6.
Specifically, in an embodiment of the present utility model, the seal ring body 82 includes: an inner ring portion 821 for abutting against the outer wall of the bushing 6, wherein a plurality of annular protrusions 825 are provided on the inner wall of the inner ring portion 821; an outer ring part 822 abutting against the inner hole wall of the through cover 3; a joint 823 for connecting the same side ends of the inner ring portion 821 and the outer ring portion 822; a ring groove portion 824 interposed between the inner ring portion 821 and the outer ring portion 822 and opposed to the joint portion 823, the ring groove portion 824 being open toward the adjuster 85; the sealing ring body 82 abuts against the inner wall of one end of the slot position 31 of the through cover 3 through the combining part 823.
Specifically, in an embodiment of the present utility model, the sealing device 8 further includes: a pressing block 84 in wedge-shaped fit and abutting connection with the ring groove 824, wherein one end of the pressing block 84 is used for abutting against the adjusting body 85; and a retainer 83 provided at the bottom of the groove 824, the retainer 83 being for elastically supporting the pressing block 84.
Specifically, in the embodiment of the present utility model, the inner diameter of the blocking ring 81 is 0.5-1mm smaller than the outer diameter of the bush 6; the blocking ring 81 is made of flexible wear-resistant oil-resistant material.
Specifically, in the embodiment of the present utility model, the inner diameters of the plurality of annular protrusions 825 gradually increase or gradually decrease from the end of the joint 823 toward the end of the annular groove 824; the inner diameter of the inner ring portion 821 is 0.3-2mm smaller than the outer diameter of the bush 6.
Specifically, in the embodiment of the present utility model, the cross section of the ring groove 824 is a V-shaped structure with large outside and small inside; the top press block 84 is a wedge-shaped structure.
Specifically, in the embodiment of the present utility model, the surface roughness value of the contact section of the bush 6 with the sealing device 8 is one of RA0.8, RA1.6, RA 3.2; the bushing 6 has an outer diameter dimension 0.1-0.5mm larger than the basic dimension.
In addition, the utility model also provides a wheel set for a crane, which comprises: the shaft body sealing mechanism; the shaft body 2 is used as a wheel shaft; the wheel body 1 is arranged in the middle of the wheel shaft; bearings 7 provided at both ends of the wheel shaft; a bearing seat 5 for supporting and mounting the bearing 7; an end cover provided on the bearing housing 5 and located at a wheel shaft end side; the through cover 3 is arranged on the bearing seat 5 and opposite to the end cover 4, one end of the bushing 6 is abutted against the wheel body, and the other end of the bushing 6 is abutted against the bearing 7.
An end cap 4 provided on the bearing housing 5 for capping the end of the wheel shaft; the through cover is arranged on the bearing seat, one end of the bushing 6 is abutted against the wheel body 1, and the other end of the bushing 6 is abutted against the bearing 7, so that the novel wheel has the advantages.
In addition, the utility model also provides a crane, comprising: the shaft body sealing mechanism has the beneficial effects.
More specifically, the utility model relates to a crane wheel set mainly comprising: the wheel body 1, the wheel shaft 2, the end cover 4, the bearing seat 5, the bushing 6 and the bearing 7, and also comprises a sealing device 8 arranged between the contact areas of the through cover 3 and the bushing 6; and the through cover 3 is arranged at the end part of the bearing seat 5 and used for limiting the position of the bearing 7 and installing the sealing device 8.
The sealing device 8 consists of a blocking ring 81, a sealing ring body 82, a retainer 83, a pressing block 84 and an adjusting body 85.
The blocking ring 81 is arranged in a hole groove of the through cover 3 close to the end of the bearing 7, an inner ring of the blocking ring is sleeved on the outer circular surface of the lining 6, the diameter of the inner ring of the blocking ring is 0.5-1mm smaller than that of the outer circular surface of the lining 6, and the blocking ring 81 is made of flexible wear-resistant oil-resistant materials. Further, the blocking ring may be a blocking ring made of nitrile rubber, fluororubber, acrylate rubber, fluorosilicone rubber, or the like.
The seal ring body 82 is in an annular structure, and is disposed in the through cover 3, the inner ring is sleeved on the outer circumferential surface of the bushing 6, and the seal ring body 82 is composed of an inner ring portion 821, an outer ring portion 822, a joint portion 823 where one ends of the inner ring portion 821 and the outer ring portion 822 are fused together, and a ring groove portion 824 between the inner ring portion 821 and the outer ring portion 822 at a position opposite to the joint portion 823.
The annular wall of the inner ring portion 821 is abutted against the outer circular surface of the bushing 6, a plurality of annular protrusions are arranged on the annular wall of the inner ring portion 821, each annular protrusion comprises an annular protrusion C, an annular protrusion D and an annular protrusion E, the inner ring diameter of each annular protrusion gradually increases or gradually decreases from the end of the combination portion 823 to the end of the annular groove portion 824, and the inner ring diameter of the inner ring portion 821 is 0.3-2mm smaller than the outer circular diameter of the bushing 6; the outer ring part 822 is in abutting connection with the inner hole wall of the through cover 3 through the outer circular surface thereof; the combination part 823 is abutted against the side of the through cover 3, close to the anti-backup ring; the cross section of the groove 824 is in a V-shaped structure with large outside and small inside and a V-shaped structure with one side.
The retainer 83 is provided in the annular groove 824, and is an elastic member for retaining the pressing block 84 against the inner ring 821, which is preferably a spring-like member.
The pressing block 84 is wedged in the annular groove 824, so as to keep the inner ring 821 in contact with the bushing 6.
The adjusting body 85 is an annular member, and is screwed to an opposite end of the through cover 3 abutting against the bearing, one end face abuts against the pressing block 84, and the pressing block 84 is moved in the axial direction thereof in the annular groove 824 by screwing the pressing block, so that the inner ring 821 and the bushing 6 are in a sufficiently abutting state.
The through cover 3 is provided with slot holes for installing the blocking ring 81, the sealing ring body 82 and the adjusting body 85.
The surface roughness values of the bushing 6 are RA0.8, RA1.6 and RA3.2, and the outer diameter size is 0.1-0.5mm larger than the basic size.
The utility model has the beneficial effects that:
1. the blocking ring 81 sleeved on the outer circular surface of the bushing 6 can block lubricating grease at the bearing 7 in a first layer, and simultaneously blocks foreign matters such as abrasive dust and impurities generated by the bearing and related parts due to rotation of the bearing, so that the foreign matters such as lubricating grease, abrasive dust and impurities can be reduced to enter the area of the sealing ring body 82, and the overall sealing performance of the wheel set is improved.
2. The annular wall of the inner ring portion 821 of the seal ring body 82 is provided with a plurality of annular protrusions, and the diameters of the annular protrusions gradually increase or gradually decrease from one end to the other end, so that the contact area between the inner ring portion 821 and the bushing 6 is multi-point and gradient contact, and the sealing stability and reliability are ensured.
3. The contact effect of the contact part of the annular wall of the inner ring portion 821 of the seal ring body 82 and the bushing 6 can be adjusted according to the actual use situation by the pressing block 84 and the adjusting body 85, so that the good sealing effect is achieved. If the annular wall of the inner ring portion 821 of the seal ring body 82 and the bushing 6 are worn to cause the grease to leak from the position, good contact at the contact point can be achieved by adjusting the adjusting body 85, so that a good sealing effect can be achieved.
4. The retainer 83 disposed in the ring groove 824 can sufficiently ensure that the annular wall of the inner ring 821 of the seal ring body 82 and the bushing 6 maintain stable and good contact effect under the elastic force thereof by the pressing block 84 and the adjusting body 85, and ensure stable and reliable sealing performance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A shaft seal mechanism comprising:
a shaft body;
a bushing sleeved on the shaft body;
a through cover penetrating the outer side of the bushing;
a sealing device disposed between the through cap and the bushing;
it is characterized in that the method comprises the steps of,
the through cover is provided with a slot hole site close to the inner side of the shaft body, and the slot hole site is an annular cavity;
the sealing device comprises:
the sealing ring body is arranged in the slot position, and one end of the sealing ring body is abutted against the inner wall of one end of the slot position;
the detachable adjusting body that sets up on the logical lid, the adjusting body with logical lid threaded connection, the one end of adjusting body is used for contradicting to sticis the sealing washer body.
2. The shaft seal mechanism of claim 1 wherein,
the annular inner wall of the through cover is provided with a hole groove, the hole groove is positioned at one side of the slot position, and the hole groove is an annular groove facing the shaft body;
the sealing device further comprises:
and the inner ring of the blocking ring is in interference connection with the bushing.
3. The shaft seal mechanism of claim 2 wherein,
the sealing washer body includes:
an inner ring part which is abutted against the outer wall of the bushing, wherein a plurality of annular bulges are arranged on the inner wall of the inner ring part;
an outer ring portion abutting against the through cover slot wall;
a joint portion connecting the inner ring portion and the outer ring portion at the same side end portion;
a ring groove portion interposed between the inner ring portion and the outer ring portion and opposite to the joint portion, the ring groove portion being open toward the adjuster;
the sealing ring body is abutted against the inner wall of one end of the slot hole position of the through cover through the combining part.
4. A shaft seal assembly as defined in claim 3 wherein,
the sealing device further comprises:
the pressing block is in wedge fit and abutting connection with the ring groove part, and one end of the pressing block is used for abutting against the adjusting body;
and the retainer is arranged at the bottom of the ring groove part and elastically supports the pressing block.
5. The shaft seal mechanism of claim 4 wherein,
the diameter of the inner ring of the blocking ring is 0.5-1mm smaller than the diameter of the outer circle of the bushing; the blocking ring is made of flexible wear-resistant oil-resistant materials.
6. The shaft seal mechanism of claim 4 wherein,
the diameters of the inner rings of the annular bulges gradually increase or gradually decrease from the joint part end to the ring groove part end; the diameter of the inner ring part is 0.3-2mm smaller than the diameter of the outer circle of the bushing.
7. The shaft seal mechanism of claim 4 wherein,
the cross section of the ring groove part is of a V-shaped structure with large outside and small inside; the top pressing block is of a wedge-shaped structure.
8. The shaft seal mechanism of claim 4 wherein,
the surface roughness value of the contact section of the bushing and the sealing device is one of Ra0.8, ra1.6 and Ra3.2; the bushing has an outer diameter dimension that is 0.1-0.5mm greater than the base dimension.
9. A wheel set for a crane, comprising:
the shaft seal mechanism of any one of claims 1 to 8;
the shaft body is used as a wheel shaft;
the wheel body is arranged in the middle of the wheel shaft;
bearings provided at both ends of the wheel shaft;
the bearing seat is used for supporting and mounting the bearing;
the end cover is arranged on the bearing seat and positioned at the axle end side of the wheel;
wherein,,
the through cover is arranged on the bearing seat and opposite to the end cover, one end of the bushing is abutted against the wheel body, and the other end of the bushing is abutted against the bearing.
10. A crane, comprising: the shaft seal mechanism of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321381233.1U CN219827487U (en) | 2023-06-01 | 2023-06-01 | Axle body sealing mechanism, wheel set for crane and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321381233.1U CN219827487U (en) | 2023-06-01 | 2023-06-01 | Axle body sealing mechanism, wheel set for crane and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827487U true CN219827487U (en) | 2023-10-13 |
Family
ID=88275738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321381233.1U Active CN219827487U (en) | 2023-06-01 | 2023-06-01 | Axle body sealing mechanism, wheel set for crane and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827487U (en) |
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2023
- 2023-06-01 CN CN202321381233.1U patent/CN219827487U/en active Active
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