CN114483793B - Bearing holding device - Google Patents
Bearing holding device Download PDFInfo
- Publication number
- CN114483793B CN114483793B CN202210108604.2A CN202210108604A CN114483793B CN 114483793 B CN114483793 B CN 114483793B CN 202210108604 A CN202210108604 A CN 202210108604A CN 114483793 B CN114483793 B CN 114483793B
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- China
- Prior art keywords
- retainer
- bracket
- radial
- upper axial
- bearing
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 22
- 238000003754 machining Methods 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 40
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000003746 surface roughness Effects 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 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
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
- F16C33/56—Selection of substances
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a bearing retainer, which comprises at least one group of retainers formed by assembly, wherein the retainers are used for being arranged along with a bearing in the axial direction and the radial direction; each set of the retainer comprises a retainer bracket, a retainer clip, and a retainer spacer, wherein the retainer clip is assembled and fixed on the outer part of the retainer bracket, and the retainer spacer is assembled and fixed on the inner part of the retainer bracket. According to the bearing retainer device, the deformation influence caused by welding is avoided by adopting an assembly mode, the influence of human factors on the quality of the retainer is eliminated, the manufacturing cost caused by a detection step is saved, the retainer is convenient to detach and remanufacture, the machining precision of the retainer is improved, the reliability of the retainer is improved, and the normal operation of the main bearing of the heading machine is ensured.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a bearing holding device.
Background
The tunneling machine is a special engineering machine for tunneling construction, integrates mechanical, electrical, hydraulic, sensing, information technology and other systems, can finish the parallel continuous operation of tunneling, supporting, slag discharging and other construction procedures, can adapt to severe working environments, and has high automation and intelligent degree; along with the needs of underground engineering and infrastructure construction of railway tunnels, highway tunnels, hydraulic engineering, urban subways and the like, the demands of development machines are still increasing at present.
The main bearing has a very important role in tunneling, which must withstand continuous, abrupt and all directional loads. The main bearing of the heading machine mainly comprises three ferrules, three rows of rollers and corresponding retainers, wherein the main bearing retainers serve as key components of the main bearing, and the main function is to separate the rollers and keep proper distances, so that load distribution is improved. In addition, in the main bearing of the heading machine, the retainer is not only in direct contact with the roller, but also in direct contact with the ferrule, and the running state of the retainer is also important for the running performance of the main bearing.
At present, an all-copper retainer and a steel-welded copper retainer are mainly used in the main bearing of the heading machine, and compared with the retainer with an all-copper structure, the steel-welded copper retainer is lower in production and manufacturing cost, so that the steel-welded copper retainer tends to be used selectively in order to save the manufacturing cost of the main bearing. The support leg and the guide block of the steel welded copper retainer are welded with the retainer main body, and although the welding method has good integrity, simple working procedure and strong adaptability, the workpiece is easy to deform under the influence of residual stress, the welding quality is very influenced by operators, special detection is required after the welding is finished, and the disassembly is difficult; meanwhile, when the steel welded copper retainer pocket is processed at present, the depth is large, and the accuracy of verticality and roughness is difficult.
Therefore, how to provide a bearing holding device that solves the above technical problems is a technical problem that a person skilled in the art needs to solve.
Disclosure of Invention
The invention aims to provide a bearing retainer device which adopts an assembly mode to avoid deformation influence caused by welding, eliminate influence of human factors on the quality of a retainer, save manufacturing cost caused by a detection step, enable the retainer to be convenient to detach and remanufacture, improve the machining precision of the retainer, improve the reliability of the retainer and ensure the normal operation of a main bearing of a heading machine.
In order to achieve the above object, the present invention provides a bearing holding device, comprising at least one group of holders formed by assembly, wherein the holders are used for being arranged along with a bearing in an axial direction and a radial direction; each set of the retainer comprises a retainer bracket, a retainer clip, and a retainer spacer, wherein the retainer clip is assembled and fixed on the outer part of the retainer bracket, and the retainer spacer is assembled and fixed on the inner part of the retainer bracket.
Preferably, each set of the holders further comprises a buffer disposed between the holder bracket and the holder clamp block.
Preferably, the number of the retainer clips in each set of the retainer is two, the two sets of the retainer clips are fitted and fixed to the outer opposite sides of the retainer bracket, and the retainer clips clamp the retainer bracket.
Preferably, two sides of the retainer clamp splice are respectively provided with a clamp splice supporting table and an assembling cavity for assembling the retainer bracket, the side surface of the assembling cavity is provided with an inner bonding surface, and the side surface of the retainer bracket is provided with an outer bonding surface matched with the inner bonding surface.
Preferably, clamping block connecting holes are formed in two ends of the assembly cavity, buffer piece connecting holes are formed in two ends of the buffer piece, clamping block connecting holes are formed in two ends of the clamping block, and the clamping block connecting holes, the buffer piece connecting holes and the clamping block connecting holes of the corresponding ends are aligned and then riveted and fixed.
Preferably, the cage bracket and the cage partition are made of steel material, the buffer is made of silica gel material, and the cage clamp block is made of copper material; the retainer separator has a separator wear-resistant surface which is quenched to improve structural strength and reduce surface roughness after high-precision machining.
Preferably, the number of the retainer partitions in each group of the retainers is multiple, multiple bracket grooves are formed in opposite sides of the interior of the retainer bracket, and partition convex grooves matched with the bracket grooves are formed in two ends of each retainer partition.
Preferably, the assembly gap of the cage is subjected to a cementing treatment by an adhesive.
Preferably, the device comprises a first retainer and a second retainer, wherein the first retainer is arranged in an axial direction, and the second retainer is arranged in a radial direction.
Preferably, said first said cage comprises an upper axial cage and a lower axial cage, and said second said cage comprises a radial cage.
Compared with the background art, the bearing retaining device provided by the invention comprises at least one group of retainers formed by assembly, wherein the retainers are used for being arranged along with the bearing in the axial direction and the radial direction; each group of retainer comprises a retainer bracket, retainer clamping blocks and retainer partition plates, wherein the retainer clamping blocks are assembled and fixed on the outer part of the retainer bracket, and the retainer partition plates are assembled and fixed on the inner part of the retainer bracket. In the structure of the bearing retainer, all parts are assembled, so that deformation influence caused by welding is avoided, influence of human factors on the quality of the retainer is eliminated, manufacturing cost caused by detection steps is saved, the retainer is convenient to detach and remanufacture, machining precision of the retainer is improved, reliability of the retainer is improved, and normal operation of a main bearing of a heading machine is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an installation of a bearing retainer device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an upper axial retainer according to an embodiment of the present invention;
FIG. 3 is a schematic view of an upper axial cage bracket according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an upper axial retainer clip provided by an embodiment of the present invention;
FIG. 5 is a schematic view of an upper axial retainer spacer provided in an embodiment of the present invention;
FIG. 6 is a schematic view of an upper axial retainer shim according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a radial cage according to an embodiment of the present invention;
FIG. 8 is a schematic view of a radial retainer bracket according to an embodiment of the present invention;
FIG. 9 is a schematic structural view of a radial retainer clip provided by an embodiment of the present invention;
FIG. 10 is a schematic view of a radial retainer spacer provided in an embodiment of the present invention;
Fig. 11 is a schematic structural view of a radial retainer shim according to an embodiment of the present invention.
Wherein:
1-upper axial retainer, 2-radial retainer, 3-lower axial retainer, 11-upper axial retainer bracket, 12-upper axial retainer clip, 13-upper axial retainer bracket, 111-upper axial retainer bracket attachment hole, 112-upper axial retainer bracket groove, 113-upper axial retainer bracket outer abutment surface, 121-upper axial retainer clip attachment hole, 122-upper axial retainer clip inner abutment surface, 123-upper axial retainer clip support table, 131-upper axial retainer bracket tab groove, 132-upper axial retainer bracket wear face, 141-upper axial retainer shim attachment hole, 142-upper axial retainer cushioning surface, 21-radial retainer bracket, 22-radial retainer clip, 23-radial retainer bracket attachment hole, 212-radial retainer bracket groove, 213-radial retainer bracket outer abutment surface, 221-radial retainer clip attachment hole, 222-radial retainer clip inner abutment surface, 231-radial retainer bracket wear face, 232-radial retainer tab groove, 242-radial retainer tab attachment hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
The present invention will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present invention.
Referring to fig. 1 to 11, fig. 1 is a schematic installation diagram of a bearing retainer according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of an upper axial retainer according to an embodiment of the present invention, fig. 3 is a schematic structural diagram of an upper axial retainer bracket according to an embodiment of the present invention, fig. 4 is a schematic structural diagram of an upper axial retainer clip according to an embodiment of the present invention, fig. 5 is a schematic structural diagram of an upper axial retainer spacer according to an embodiment of the present invention, fig. 6 is a schematic structural diagram of an upper axial retainer spacer according to an embodiment of the present invention, fig. 7 is a schematic structural diagram of a radial retainer according to an embodiment of the present invention, fig. 8 is a schematic structural diagram of a radial retainer bracket according to an embodiment of the present invention, fig. 9 is a schematic structural diagram of a radial retainer clip according to an embodiment of the present invention, fig. 10 is a schematic structural diagram of a radial retainer spacer according to an embodiment of the present invention, and fig. 11 is a schematic structural diagram of a radial retainer spacer according to an embodiment of the present invention.
In a first specific embodiment, the bearing retainer provided by the invention comprises at least one group of retainers, the retainers are assembled, and the retainers can be arranged at different positions along the axial direction and the radial direction along with the bearing according to different requirements. Each group of retainer comprises a retainer bracket, retainer clamping blocks and retainer partition plates, wherein the retainer clamping blocks are assembled and fixed on the outer part of the retainer bracket, and the retainer partition plates are assembled and fixed on the inner part of the retainer bracket.
It should be noted that, this bearing retainer is particularly useful for the entry driving machine main bearing, compares steel welded copper holder, and all parts of the device have all adopted the assembled form to this deformation influence that avoids the welding to bring eliminates the influence of human factor to the holder quality, practices thrift the manufacturing cost that the detection step brought, makes the holder convenient dismantlement and refabrication, improves the machining precision of holder, with this reliability that improves the holder, guarantees the normal operating of entry driving machine main bearing.
In addition to this, the device is not limited to use in the main bearing of the heading machine, but can be used in other large bearings, and is also within the scope of the description of the present embodiment.
On the basis, the device comprises a first retainer and a second retainer, wherein the first retainer is axially arranged, and the second retainer is radially arranged.
The number of the holders in different directions may be changed according to the bearing to which the apparatus is applied, and the present invention should be limited to the above description.
Illustratively, in the main bearing of the heading machine as shown in fig. 1, the first cage of the present embodiment comprises an upper axial cage 1 and a lower axial cage 3, and the second cage comprises a radial cage 2.
As can be seen from the schematic diagram of the main bearing structure of the heading machine shown in fig. 1, the main bearing of the heading machine mainly comprises three ferrules, three rows of rollers and corresponding retainers, the diameter surface of the ferrules, which is contacted with the rolling bodies, is a raceway surface, and the diameter surface for guiding the movement of the retainers is a guiding surface.
When the main bearing of the heading machine normally operates, friction is generated between the retainer and the raceway surface and between the retainer and the guide surface, a certain degree of collision is generated due to the existence of gaps, metal peeling and abnormal sound of the raceway surface and the guide surface are extremely easy to occur under the conditions, and the service life of the main bearing of the heading machine is shortened. The invention mainly aims to avoid deformation influence caused by welding, eliminate influence of human factors on the quality of the retainer, save manufacturing cost caused by detection steps, ensure that the retainer is convenient to detach and remanufacture, improve the machining precision of the retainer, improve the reliability and safety of the main bearing of the heading machine, and prolong the service life of the heading machine. Therefore, the shape of the retainer clamp block and the contact condition of the retainer clamp block and the ferrule can be adjusted according to actual conditions, meanwhile, the steel and copper materials of the retainer can be replaced by other high-quality materials, and the assembly mode of the retainer partition plate and the retainer bracket can be changed.
In a specific embodiment, each set of retainers further includes a buffer disposed between the retainer bracket and the retainer clip.
For example, the buffer may employ a spacer to buffer shock and attenuate the impact of the cage on the ferrule.
In a specific embodiment, the number of retainer clips in each set of retainers is two, the two sets of retainer clips are assembled and secured to the outer opposite sides of the retainer brackets, and the retainer clips clamp the retainer brackets.
In the present embodiment, the upper axial holder 1 includes one upper axial holder bracket 11, two upper axial holder clamp blocks 12, a plurality of upper axial holder partitions 13, and two upper axial holder shims, the two upper axial holder clamp blocks 12 clamping the upper axial holder bracket 11, the upper axial holder shims being located between the upper axial holder bracket 11 and the upper axial holder clamp blocks 12, the plurality of upper axial holder partitions 13 being fitted in the upper axial holder bracket 11.
The lower axial cage 3 differs from the upper axial cage 1 in terms of position, but is identical in construction and will not be described here again.
The radial cage 2 comprises one radial cage bracket 21, two radial cage clamping blocks 22, a number of radial cage partitions 23 and two radial cage shims, the radial cage clamping blocks 22 clamping the radial cage bracket 21, the radial cage shims being located between the radial cage bracket 21 and the radial cage clamping blocks 22, the number of radial cage partitions 23 being fitted in the radial cage bracket 21.
Specifically, in the assembly of the retainer clamp splice and the retainer bracket, two sides of the retainer clamp splice are respectively provided with a clamp splice supporting table and an assembly cavity for the assembly of the retainer bracket, the side surface of the assembly cavity is provided with an inner bonding surface, and the side surface of the retainer bracket is provided with an outer bonding surface matched with the inner bonding surface.
In the present embodiment, both sides of the upper axial retainer bracket 11 are assembled with the upper axial retainer clip 12, respectively; one side of the upper axial retainer clip 12 is an upper axial retainer clip support 123, the other side is an upper axial retainer assembly cavity, the bottom surface of the upper axial retainer bracket 11 is supported by the inner bottom surface of the upper axial retainer assembly cavity, the inner side surface of the upper axial retainer assembly cavity is provided with an upper axial retainer clip inner abutment surface 122, the outer side surface of the upper axial retainer bracket 11 is provided with an upper axial retainer bracket outer abutment surface 113, and when the two sides of the upper axial retainer bracket 11 are assembled with the upper axial retainer clip 12, the upper axial retainer bracket outer abutment surface 113 is matched with the upper axial retainer clip inner abutment surface 122 to limit the displacement and deformation of the upper axial retainer bracket 11 and limit the displacement of the upper axial retainer spacer 13 in the axial direction.
Wherein, the upper axial retainer clip supporting table 123 is in direct contact with the raceway surface to limit the displacement of the upper axial retainer 1 in the axial direction, and meanwhile, the upper axial retainer clip 12 can be in direct contact with the flange surface to limit the displacement of the upper axial retainer 1 in the radial direction, so as to ensure the normal circumferential rotation of the upper axial retainer 1.
The lower axial cage 3 has the same structure as the upper axial cage 1 and will not be described again here.
Both sides of the radial retainer bracket 21 are respectively assembled with radial retainer clamping blocks 22; the radial retainer clip 22 is provided with only a radial retainer fitting cavity, an inner bottom surface of which supports a bottom surface of the radial retainer bracket 21, an inner side surface of which has a radial retainer clip inner fitting surface 222, and an outer side surface of the radial retainer bracket 21 has a radial retainer bracket outer fitting surface 213, and when both sides of the radial retainer bracket 21 are fitted with the radial retainer clip 22, the radial retainer bracket outer fitting surface 213 is fitted with the radial retainer clip inner fitting surface 222 to restrict displacement and deformation of the radial retainer bracket 21 and restrict displacement of the radial retainer partition 23 in the radial direction.
Wherein, radial retainer clamp 22 and flange face direct contact limit radial retainer 2 in axial and radial displacement to guarantee radial retainer normal circumferential rotation.
It should be noted that the above-mentioned fixing manner of the holder bracket and the holder clamping block includes, but is not limited to, fastening, etc., and it should fall within the scope of the present embodiment.
For example, the retainer bracket and the retainer clip can be riveted and fixed. Specifically, the two ends in the assembly cavity are provided with clamp splice connecting holes, the two ends of the buffer piece are provided with buffer piece connecting holes, the two ends of the clamp splice are provided with clamp splice connecting holes, and the clamp splice connecting holes, the buffer piece connecting holes and the clamp splice connecting holes at the corresponding ends are aligned and then riveted and fixed.
In this embodiment, the two ends in the upper axial retainer assembly cavity are provided with upper axial retainer bracket connection holes 111, the two ends of the upper axial retainer gasket are provided with upper axial retainer gasket connection holes 141, the periphery of the upper axial retainer gasket is provided with upper axial retainer buffer surfaces 142, the two ends of the upper axial retainer clamp block 12 are provided with upper axial retainer clamp block connection holes 121, and the upper axial retainer bracket connection holes 111, the upper axial retainer gasket connection holes 141 and the upper axial retainer clamp block connection holes 121 are riveted and fixed after being aligned, so that the two upper axial retainer clamp blocks 12 clamp the upper axial retainer bracket 11.
The lower axial cage 3 has the same structure as the upper axial cage 1 and will not be described again here.
Radial retainer bracket connecting holes 211 are formed in two ends of the radial retainer assembly cavity, radial retainer gasket connecting holes 241 are formed in two ends of the radial retainer gasket, radial retainer gasket buffer surfaces 242 are formed around the radial retainer gasket, radial retainer clamp block connecting holes 221 are formed in two ends of the radial retainer clamp block 22, and the radial retainer bracket connecting holes 211, the radial retainer gasket connecting holes 241 and the radial retainer clamp block connecting holes 221 are aligned and then riveted and fixed, so that the two radial retainer clamp blocks 22 clamp the radial retainer bracket 21.
In a specific embodiment, the number of the retainer partitions in each group of the retainers is multiple, the opposite sides of the interior of the retainer supports are provided with a plurality of support grooves, two ends of each retainer partition are provided with partition convex grooves matched with the support grooves, and the retainer partitions are clamped into the retainer supports by utilizing the partition convex grooves and the support grooves, so that the assembly precision is improved.
In this embodiment, the number of the upper axial retainer spacers 13 in the upper axial retainer 1 is plural, and a plurality of upper axial retainer bracket grooves 112 are respectively formed on the front and rear sides of the interior of the upper axial retainer bracket 11, and both ends of each upper axial retainer spacer 13 are provided with upper axial retainer spacer convex grooves 131 that are engaged with the upper axial retainer bracket grooves 112.
The lower axial cage 3 differs from the upper axial cage 1 in terms of position, but is identical in construction and will not be described here again.
The radial retainer 2 has a plurality of radial retainer partitions 23, and a plurality of radial retainer support grooves 212 are respectively formed in front and rear sides of the inside of the radial retainer support 21, and radial retainer partition convex grooves 232 matched with the radial retainer support grooves 212 are formed at two ends of each radial retainer partition 23.
Further, the retainer bracket and the retainer partition plate are made of steel materials, the buffer piece is made of silica gel materials, and the retainer clamp block is made of copper materials; the retainer separator has a separator wear-resistant surface which is quenched to improve structural strength and reduce surface roughness after high-precision machining.
In the present embodiment, the middle of the upper axial retainer partition 13 is an upper axial retainer partition wear surface 132; the lower axial retainer 3 has the same structure as the upper axial retainer 1, and will not be described again here; the middle of the radial retainer partition 23 is a radial retainer partition wear surface 231.
After the structural strength of the upper axial retainer partition 13 is improved by quenching, the high-precision machining is performed on the wear-resistant surface 132 of the upper axial retainer partition in the tooling, so that the surface roughness of the upper axial retainer partition 13 is reduced, and the contact environment with rollers is improved to reduce wear.
After the radial retainer partition 23 is quenched to improve structural strength, the radial retainer partition wear-resistant surface 231 is processed with high precision in the tooling, so that the surface roughness of the radial retainer partition 23 is reduced, and the contact environment with the roller is improved to reduce wear.
Further, the assembly gap of the retainer is subjected to a bonding treatment by an adhesive.
In this embodiment, the adhesive is used to bond the minute gaps at the mating portions, thereby further improving the reliability of the retainer.
In this embodiment, the cage separator is made of steel material, and the thickness of the contact part with the roller is relatively large in consideration of abrasion with the roller, and quenching treatment is performed first to enhance the structural strength of the cage separator, and then superfinishing is performed on the surface of the cage separator. The retainer bracket is also made of steel materials, and is internally provided with a groove for embedding the retainer partition plate and limiting the displacement of the retainer partition plate in the circumferential direction. In view of the fact that the retainer clip is in direct contact with the ferrule, the retainer clip is made of a copper material in order to ensure excellent wear resistance of the retainer. The retainer clip can be mated with the retainer bracket, assembled with the retainer bracket by staking to form the final retainer, and limit axial or radial displacement of the retainer spacer. The retainer gasket is arranged between the retainer clamping block and the retainer bracket and made of a silica gel material, so that vibration in the axial direction can be buffered, and the collision of the retainer to the ferrule can be weakened. And finally, performing gluing treatment on the tiny gaps of the matched parts by using an adhesive, so that the retainer structure is more stable. Therefore, the retainer can meet the requirements of high strength, high precision, high stability and the like, the reliability and the safety of the main bearing are improved, and the service life of the heading machine is prolonged.
In a specific assembly description of the upper axial cage 1, the following steps are included:
Stably placing the upper axial retainer clip 12 on a horizontal mounting table, with the upper axial retainer clip support table 123 below; installing an upper axial retainer shim by taking the inner joint surface 122 of the upper axial retainer clamp block as a reference surface, and ensuring that the upper axial retainer shim connecting hole 141 is aligned with the upper axial retainer clamp block connecting hole 121; installing an upper axial retainer bracket 11 by taking the inner joint surface 122 of the upper axial retainer clamp block as a reference surface, and ensuring that the upper axial retainer bracket connecting hole 111 is aligned with the upper axial retainer gasket connecting hole 141 and the upper axial retainer clamp block connecting hole 121; mounting the sequential axial retainer spacer 13 on the upper axial retainer bracket 11 such that the upper axial retainer spacer groove 131 mates with the upper axial retainer bracket groove 112; likewise, the other upper axial retainer shim is mounted into the other upper axial retainer block 12 with reference to the upper axial retainer block inner abutment surface 122, fixing both ends of the upper axial retainer shim with a small amount of adhesive while ensuring that the upper axial retainer shim connecting holes 141 are aligned with the upper axial retainer block connecting holes 121; the upper axial retainer clamp block 12 and the upper axial retainer gasket which are bonded together are picked up, the upper axial retainer clamp block supporting table 123 faces upwards, the outer joint surface 113 of the upper axial retainer bracket is taken as a reference surface, the other upper axial retainer clamp block 12 and the upper axial retainer gasket are installed, and the alignment of connecting holes of all parts is ensured; the parts are connected by riveting, and the tiny gaps at the matching parts are subjected to cementing treatment by using an adhesive, so that the upper axial retainer 1 is assembled.
The lower axial cage 3 differs from the upper axial cage 1 in terms of position, but is identical in construction and will not be described here again.
In a specific assembly description of the radial cage 2, the following steps are included:
The radial retainer bracket 21 is stably placed on an installation platform with the same radian; embedding radial retainer spacers 23 in the radial retainer brackets 21 such that the radial retainer spacer tabs 232 mate with the radial retainer bracket recesses 212; moving the radial retainer bracket 21 outward so that the radial retainer spacer tab 232 is in the same position as the mounting platform boundary; the radial retainer gasket is installed in the radial retainer clip 22 by taking the inner joint surface 222 of the radial retainer clip as a reference, so that the radial retainer gasket connecting holes 241 are aligned with the radial retainer clip connecting holes 221, and the two ends of the radial retainer gasket are fixed by a small amount of adhesive; the radial retainer clamping blocks 22 are installed by referring to the outer joint surface 213 of the radial retainer bracket, so that the alignment of the connecting holes of all parts is ensured; stably placing the assembled radial retainer assembly on a horizontal mounting table with the radial retainer clip 22 down; likewise, another radial retainer shim is installed into another radial retainer clip 22, with radial retainer shim attachment holes 241 aligned with radial retainer clip attachment holes 221, and with a small amount of adhesive securing the radial retainer shim ends; taking the outer joint surface 213 of the radial retainer bracket as a reference, picking up the bonded radial retainer clamp block 22 and radial retainer gasket to ensure that the radial retainer gasket is arranged below, and installing the other radial retainer clamp block 22 and radial retainer gasket to ensure the alignment of connecting holes of all parts; the parts are connected by riveting, and the small gaps at the matching parts are subjected to cementing treatment by using an adhesive, so that the radial retainer 2 is assembled.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The bearing retainer provided by the present invention is described in detail above. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (6)
1. The bearing retaining device is characterized by being suitable for a main bearing of a development machine, wherein the main bearing of the development machine mainly comprises three ferrules, three rows of rollers and corresponding retainers, the diameter surface of the ferrules, which is contacted with the rollers, is a raceway surface, and the diameter surface for guiding the movement of the retainers is a guiding surface; the bearing retainer comprises a plurality of groups of retainers formed by assembly, and the retainers are divided into a first retainer with an axial direction arranged in a main bearing of the heading machine and a second retainer with a radial direction arranged in the main bearing of the heading machine; each group of the retainer comprises a retainer bracket, retainer clamping blocks, retainer partition plates and buffer pieces, wherein the retainer clamping blocks are assembled and fixed on the outer part of the retainer bracket, the retainer partition plates are assembled and fixed on the inner part of the retainer bracket, and the buffer pieces are arranged between the retainer bracket and the retainer clamping blocks; the number of the retainer clamping blocks in each set of the retainer is two, the two sets of retainer clamping blocks are assembled and fixed on the outer opposite sides of the retainer bracket, and the retainer clamping blocks clamp the retainer bracket; the two sides of the retainer clamp block are respectively provided with a clamp block supporting table and an assembling cavity for assembling the retainer bracket, the side surface of the assembling cavity is provided with an inner joint surface, the side surface of the retainer bracket is provided with an outer joint surface matched with the inner joint surface, when the two sides of the retainer bracket are assembled with the retainer clamp block, the outer joint surface is matched with the inner joint surface to limit the displacement and deformation of the retainer bracket and limit the displacement of the retainer baffle plate in the axial direction in the first retainer and the displacement of the retainer baffle plate in the radial direction in the second retainer, the clamping block supporting table in the first retainer is in direct contact with the raceway surface to limit the displacement of the first retainer in the axial direction, meanwhile, the retainer clamping block in the first retainer is in direct contact with the flange surface to limit the displacement of the first retainer in the radial direction so as to ensure the normal circumferential rotation of the first retainer, and the retainer clamping block in the second retainer is in direct contact with the flange surface to limit the displacement of the second retainer in the axial direction and the radial direction so as to ensure the normal circumferential rotation of the second retainer.
2. The bearing retainer device according to claim 1, wherein the assembly chamber is provided with a clamp block connecting hole at both ends, the buffer member is provided with a buffer member connecting hole at both ends, the clamp block is provided with a clamp block connecting hole at both ends, and the clamp block connecting hole, the buffer member connecting hole and the clamp block connecting hole at the corresponding ends are riveted after being aligned.
3. Bearing retainer according to claim 1 or 2, wherein the retainer bracket and the retainer spacer are made of a steel material, the buffer is made of a silicone material, and the retainer clip is made of a copper material; the retainer separator has a separator wear-resistant surface which is quenched to improve structural strength and reduce surface roughness after high-precision machining.
4. The bearing retainer according to claim 1 or 2, wherein the number of the retainer partitions in each set of the retainers is plural, a plurality of bracket grooves are formed on inner opposite sides of the retainer bracket, and partition convex grooves which are fitted with the bracket grooves are formed on both ends of the retainer partitions.
5. Bearing retainer according to claim 1 or 2, wherein the assembly gap of the retainer is subjected to a cementing treatment by an adhesive.
6. Bearing retainer according to claim 1 or 2, wherein said first of said retainers comprises an upper axial retainer (1) and a lower axial retainer (3), and said second of said retainers comprises a radial retainer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210108604.2A CN114483793B (en) | 2022-01-28 | 2022-01-28 | Bearing holding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210108604.2A CN114483793B (en) | 2022-01-28 | 2022-01-28 | Bearing holding device |
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| Publication Number | Publication Date |
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| CN114483793A CN114483793A (en) | 2022-05-13 |
| CN114483793B true CN114483793B (en) | 2024-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210108604.2A Active CN114483793B (en) | 2022-01-28 | 2022-01-28 | Bearing holding device |
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