CN107013566B - Self-lubricating heavy-load supporting sliding sleeve - Google Patents
Self-lubricating heavy-load supporting sliding sleeve Download PDFInfo
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- CN107013566B CN107013566B CN201710383749.2A CN201710383749A CN107013566B CN 107013566 B CN107013566 B CN 107013566B CN 201710383749 A CN201710383749 A CN 201710383749A CN 107013566 B CN107013566 B CN 107013566B
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- stress
- self
- sliding sleeve
- supporting sliding
- lubricating
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1095—Construction relative to lubrication with solids as lubricant, e.g. dry coatings, powder
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C39/00—Relieving load on bearings
- F16C39/02—Relieving load on bearings using mechanical means
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2202/00—Solid materials defined by their properties
- F16C2202/50—Lubricating properties
- F16C2202/52—Graphite
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2352/00—Apparatus for drilling
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/31—Axle
Abstract
The invention relates to a self-lubricating heavy-load supporting sliding sleeve which comprises a thick-walled cylinder body provided with a shaft hole, wherein a self-lubricating body is arranged on the outer wall of the cylinder body, first stress unloading holes are uniformly distributed in the middle of the cylinder body along the circumferential direction, one sides of the first stress unloading holes, which point to the axis of the cylinder body, are communicated with stress unloading cavities, the stress unloading cavities are wider than the first stress unloading holes and are symmetrical about the axis of the first stress unloading holes, and a shaft end cover fixing groove is formed in one end face of the cylinder body. The supporting sliding sleeve properly reduces the material of a non-bearing area, achieves the purposes of uniformly absorbing partial load and reducing the weight of the whole supporting sliding sleeve through self reasonable deformation, and reduces the difficulty for the design of other components used in combination.
Description
Technical Field
The invention relates to a supporting sliding sleeve, in particular to a self-lubricating heavy-load supporting sliding sleeve.
Background
In the industry such as heavy industry especially mine, metallurgy, mechanical equipment often can bear tens tons of heavy load even hundreds of tons, thereby the heavy load can make key parts such as mechanical equipment's axle, bearing produce great stress and produce the damage, consequently need sheathe supporting sliding sleeve on key parts thereby reduce stress, current supporting sliding sleeve generally is thin wall annular tube structure to inlay on the section of thick bamboo wall and have self-lubricating body thereby realize self-lubricating function, current self-lubricating supporting sliding sleeve has following problem: 1) The self-lubricating supporting sliding sleeve has small self deformation under the limitation of wall thickness and can directly transmit heavy load to a key component; 2) The self-lubricating body is generally grease, and when the unit area pressure is too large, a lubricating film is not easy to form, so that the self-lubricating effect is not achieved.
Disclosure of Invention
The invention aims to provide a self-lubricating heavy-load supporting sliding sleeve, which can properly reduce the material of a non-bearing area, achieve the purposes of uniformly absorbing partial load and reducing the weight of the whole supporting sliding sleeve through reasonable deformation of the sliding sleeve, and reduce the difficulty for designing other components used in combination.
The technical scheme adopted by the invention is as follows:
a self-lubricating heavy-load supporting sliding sleeve comprises a thick-walled cylinder body provided with a shaft hole, the outer wall of the cylinder body is provided with a self-lubricating body, first stress unloading holes are uniformly distributed in the middle part along the circumferential direction, one side of the first stress unloading hole, which points to the axis of the cylinder, is communicated with a stress unloading cavity, the stress unloading cavity is wider than the first stress unloading hole and is symmetrical about the axis of the first stress unloading hole, and an end cover fixing groove is arranged on one end face of the cylinder.
Furthermore, the cylinder body is divided into a left supporting sliding sleeve and a right supporting sliding sleeve by taking the plane where the axes of all the first stress unloading holes are located as a boundary, and the left supporting sliding sleeve and the right supporting sliding sleeve are welded and fixed.
Furthermore, the stress unloading cavity is of a rectangular structure with round corners at the edges.
Furthermore, the barrel is not provided with the terminal surface of axle head cover fixed slot and is equipped with annular bearing transition slope and annular stress uninstallation arc on, bears the lower of transition slope and the lower smooth linking of stress uninstallation arc, and the highest of bearing transition slope is close to the axle center of barrel, and the axle center of barrel is kept away from to the highest of stress uninstallation arc.
Furthermore, an annular asymmetric stress unloading groove is formed in the end face, provided with the shaft end cover fixing groove, of the barrel.
Furthermore, second stress unloading holes communicated to the stress unloading cavities are uniformly distributed on the asymmetric stress unloading grooves.
Further, the self-lubricating body is graphite columns which are arranged on the outer wall of the cylinder body in a staggered mode.
The invention has the beneficial effects that:
1. the supporting sliding sleeve is matched with the shaft end cover locking shaft head through the shaft end cover fixing groove (the shaft end cover fixing groove is used for positioning the shaft end cover, the shaft end cover is connected with the shaft head through a fastener), the load is transferred to the supporting sliding sleeve through the shaft head, and the fixing groove of the shaft end cover can bear part of the load transferred by the shaft head; the stress unloading cavity and the first stress unloading hole are located in a non-main stress area, and the deformation of the stress unloading cavity and the first stress unloading hole cannot directly influence the deformation of the whole supporting sliding sleeve, so that the stress borne by the whole supporting sliding sleeve is more uniform.
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4. The bearing sliding sleeve under heavy load has an unobvious stress reduction effect when the stress unloading groove is small, and can generate large deformation when the stress unloading groove is large, so that the normal use of the heavy-load bearing sliding sleeve is influenced.
5. The symmetrical stress unloading grooves are usually used for eliminating stress concentration in engineering, the maximum stress often occurs at the bottoms of the grooves, the asymmetric stress unloading grooves are adopted, multiple times of calculation and verification prove that the maximum stress can be moved away from the shaft hole, the bearing deformation of the whole supporting sliding sleeve is reduced compared with the traditional stress unloading grooves, and the fixing grooves of the shaft end cover can be close to the inner part of the cylinder body in the asymmetric stress unloading grooves, so that the weight of the whole supporting sliding sleeve is reduced.
6. On asymmetric stress relief grooves a second stress unloading hole is arranged on the first stress unloading hole, the maximum stress of the asymmetric stress unloading groove can be further reduced, and the safety of equipment is ensured.
7. When the contact surface of the supporting sliding sleeve and the matched assembling component generates relative displacement, the graphite column forms a graphite thin layer on the contact surface to form self-lubrication, the lubricating material does not need to be supplemented periodically, and the maintenance cost is low.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a perspective view of an embodiment of the present invention.
In the figure: 1-right supporting sliding sleeve; 2-left supporting sliding sleeve; 3-stress relief cavities; 4-asymmetric stress relief grooves; 5-a second stress relief hole; 6-shaft end cover fixing groove; 7-first stress relief holes; 8-bearing a transition slope; 9-stress unloading the arc; 10-a graphite column; 11-and the shaft hole.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 and 2, a self-lubricating heavy-duty supporting sliding sleeve comprises a thick-walled cylinder body provided with a shaft hole 11, wherein the outer wall of the cylinder body is provided with a self-lubricating body, first stress unloading holes 7 are uniformly distributed in the middle of the cylinder body along the circumferential direction, one side, pointing to the axis of the cylinder body, of each first stress unloading hole 7 is communicated with a stress unloading cavity 3, each stress unloading cavity 3 is wider than each first stress unloading hole 7 and is symmetrical about the axis of each first stress unloading hole 7, and a shaft end cover fixing groove 6 is arranged on one end face of the cylinder body. The supporting sliding sleeve is matched with a shaft end cover locking shaft head through a shaft end cover fixing groove 6 (the shaft end cover fixing groove 6 is used for positioning a shaft end cover, the shaft end cover is connected with the shaft head through a fastener), load is transmitted to the supporting sliding sleeve through the shaft head, and the shaft end cover fixing groove 6 can bear part of the load transmitted by the shaft head. Stress uninstallation chamber 3 and first stress uninstallation hole 7 are located in the non-main stress area, the deformation of stress uninstallation chamber 3 and first stress uninstallation hole 7 can not directly influence the deformation of whole supporting sliding sleeve, thereby can make the stress that whole supporting sliding sleeve receives more even, stress uninstallation chamber 3 and first stress uninstallation hole 7's shape and position set up, the reasonable deformation of self has been guaranteed, partial load has evenly been absorbed, thereby make supporting sliding sleeve bear by the reasonable deformation after heavily loaded, can also very big reduction whole supporting sliding sleeve weight, for the design of other parts of combined use has reduced the degree of difficulty.
As shown in fig. 1 and fig. 2, in the present embodiment, the cylinder body is divided into a left supporting sliding sleeve 2 and a right supporting sliding sleeve 1 by using the plane where the axes of all the first stress relief holes 7 are located as a boundary, and the left supporting sliding sleeve 2 and the right supporting sliding sleeve 1 are welded and fixed. Because the stress unloading cavity 3 is wider than the first stress unloading hole 7, the barrel is divided into two parts at the maximum section of the stress unloading cavity 3 for processing and is fixed after processing, the processing of the stress unloading cavity 3 is facilitated, and the left supporting sliding sleeve 2 and the right supporting sliding sleeve 1 are fixed by welding, so that the internal structure of the barrel cannot be influenced.
As shown in fig. 1, in the present embodiment, the stress relief cavity 3 is a rectangular structure with rounded edges. Through multiple calculation and check, the stress unloading cavity 3 is determined to be in a rectangular structure with round corners at the edges, the unloading effect is best, and excessive deformation cannot be generated.
As shown in fig. 1, in this embodiment, an annular bearing transition slope 8 and an annular stress unloading arc 9 are arranged on an end surface of the barrel, where the shaft end cover fixing groove 6 is not arranged, the lowest part of the bearing transition slope 8 is smoothly connected with the lowest part of the stress unloading arc 9, the highest part of the bearing transition slope 8 is close to the shaft center of the barrel, and the highest part of the stress unloading arc 9 is far away from the shaft center of the barrel. The practical engineering experience concludes that the supporting sliding sleeve under heavy load has an unobvious stress reduction effect when the stress unloading groove is small, and the stress unloading groove can generate large deformation when the stress unloading groove is large, so that the normal use of the heavy-load supporting sliding sleeve is influenced, therefore, a bearing transition slope 8 and a stress unloading arc 9 combination are additionally arranged on one end face, the bearing transition slope 8 has a certain gradient, the geometric shape of the barrel on one side of the end face close to the shaft hole 11 is gradually changed, the barrel on one side of the end face can not generate large deformation, the load is gradually transmitted to the position close to the stress unloading arc 9, the use of the supporting sliding sleeve is ensured to the maximum extent, the stress unloading arc 9 is smoothly connected with the bearing transition slope 8, the stress concentration is avoided, and the stress unloading arc 9 generates reasonable deformation and is uniformly stressed.
As shown in fig. 1, in the present embodiment, an end face of the cylinder body provided with the shaft end cover fixing groove 6 is provided with an annular asymmetric stress relief groove 4. The symmetrical stress unloading grooves are usually used for eliminating stress concentration in engineering, the maximum stress often occurs at the bottoms of the grooves, the asymmetric stress unloading grooves 4 are adopted in the invention, and multiple times of calculation and verification prove that the maximum stress can be moved away from the shaft hole 11, compared with the traditional stress unloading grooves, the bearing deformation of the whole supporting sliding sleeve at the position is reduced, and the shaft end cover fixing grooves 6 can be close to the inner part of the cylinder body in the asymmetric stress unloading grooves 4, so that the weight of the whole supporting sliding sleeve is reduced.
As shown in fig. 1, in the present embodiment, the asymmetric stress relief grooves 4 are uniformly distributed with second stress relief holes 5 connected to the stress relief cavities 3. The second stress unloading holes 5 are formed in the asymmetric stress unloading grooves 4, so that the maximum stress of the asymmetric stress unloading grooves 4 can be further reduced, and the safety of equipment is guaranteed.
As shown in fig. 1 and 2, in the present embodiment, the self-lubricating bodies are graphite columns 10 arranged alternately on the outer wall of the cylinder. When the contact surface of the supporting sliding sleeve and the matched assembling component generates relative displacement, the graphite column 10 forms a graphite thin layer on the contact surface to form self-lubrication, a lubricating material is not required to be supplemented periodically, and the maintenance cost is low.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a self-lubricating heavy load supporting sliding sleeve which characterized in that: including the thick walled barrel that is equipped with the shaft hole, the barrel outer wall is equipped with from the lubricating body and has first stress uninstallation hole at middle part along circumference evenly distributed, and the axle center one side of the directional barrel in first stress uninstallation hole all communicates there is stress uninstallation chamber, and stress uninstallation chamber is wider in first stress uninstallation hole and about the axle center symmetry in first stress uninstallation hole, is equipped with the axle head lid fixed slot on a barrel terminal surface.
2. The self-lubricating heavy-duty support sleeve of claim 1, wherein: the cylinder body is divided into a left supporting sliding sleeve and a right supporting sliding sleeve by taking the surfaces of the axes of all the first stress unloading holes as boundaries, and the left supporting sliding sleeve and the right supporting sliding sleeve are welded and fixed.
3. The self-lubricating heavy-duty support sleeve of claim 1 or 2, wherein: the stress unloading cavity is of a rectangular structure with round corners at the edges.
4. The self-lubricating heavy-duty support sleeve of claim 1 or 2, wherein: the end face of the barrel, which is not provided with the shaft end cover fixing groove, is provided with an annular bearing transition slope and an annular stress unloading arc, the lowest part of the bearing transition slope is smoothly connected with the lowest part of the stress unloading arc, the highest part of the bearing transition slope is close to the axis of the barrel, and the highest part of the stress unloading arc is far away from the axis of the barrel.
5. The self-lubricating heavy-duty support sleeve of claim 4, wherein: the end face of the barrel body provided with the shaft end cover fixing groove is provided with an annular asymmetric stress unloading groove.
6. The self-lubricating heavy-duty support sleeve of claim 5, wherein: second stress unloading holes communicated with the stress unloading cavities are uniformly distributed on the asymmetric stress unloading grooves.
7. The self-lubricating heavy-duty support sleeve of claim 1 or 2, wherein: the self-lubricating body is graphite columns which are arranged on the outer wall of the cylinder body in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383749.2A CN107013566B (en) | 2017-05-26 | 2017-05-26 | Self-lubricating heavy-load supporting sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383749.2A CN107013566B (en) | 2017-05-26 | 2017-05-26 | Self-lubricating heavy-load supporting sliding sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013566A CN107013566A (en) | 2017-08-04 |
| CN107013566B true CN107013566B (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710383749.2A Active CN107013566B (en) | 2017-05-26 | 2017-05-26 | Self-lubricating heavy-load supporting sliding sleeve |
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| CN (1) | CN107013566B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112342629B (en) * | 2020-11-03 | 2023-02-10 | 中山市恒滨实业有限公司 | Melt-blown fabric extrusion die holder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003206873A (en) * | 2002-01-16 | 2003-07-25 | Matsushita Electric Ind Co Ltd | Scroll compressor |
| WO2013029850A1 (en) * | 2011-08-26 | 2013-03-07 | Contitech Vibration Control Gmbh | Cylindrical half shell for a radially braceable bearing bush |
| CN204200836U (en) * | 2014-09-19 | 2015-03-11 | 上海材料研究所 | A kind of high-mechanic self-lubricating metal spherical bearing |
| CN204457906U (en) * | 2014-12-26 | 2015-07-08 | 潍柴动力股份有限公司 | Roller type tappet |
| CN104854356A (en) * | 2012-12-13 | 2015-08-19 | H.E.F.公司 | Guiding member in the form of a metal ring for assembly with friction and with the articulating and/or sliding capability of a shaft |
| CN105782244A (en) * | 2016-05-18 | 2016-07-20 | 镇江市隆盛工具有限公司 | Bush |
| CN207229596U (en) * | 2017-05-26 | 2018-04-13 | 中冶南方工程技术有限公司 | Self-lubricating heavy duty supporting sliding sleeve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012138544A2 (en) * | 2011-04-08 | 2012-10-11 | Dresser-Rand Company | Self-lubricating snubber bearing |
-
2017
- 2017-05-26 CN CN201710383749.2A patent/CN107013566B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003206873A (en) * | 2002-01-16 | 2003-07-25 | Matsushita Electric Ind Co Ltd | Scroll compressor |
| WO2013029850A1 (en) * | 2011-08-26 | 2013-03-07 | Contitech Vibration Control Gmbh | Cylindrical half shell for a radially braceable bearing bush |
| CN104854356A (en) * | 2012-12-13 | 2015-08-19 | H.E.F.公司 | Guiding member in the form of a metal ring for assembly with friction and with the articulating and/or sliding capability of a shaft |
| CN204200836U (en) * | 2014-09-19 | 2015-03-11 | 上海材料研究所 | A kind of high-mechanic self-lubricating metal spherical bearing |
| CN204457906U (en) * | 2014-12-26 | 2015-07-08 | 潍柴动力股份有限公司 | Roller type tappet |
| CN105782244A (en) * | 2016-05-18 | 2016-07-20 | 镇江市隆盛工具有限公司 | Bush |
| CN207229596U (en) * | 2017-05-26 | 2018-04-13 | 中冶南方工程技术有限公司 | Self-lubricating heavy duty supporting sliding sleeve |
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| Publication number | Publication date |
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| CN107013566A (en) | 2017-08-04 |
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